WO2025113415A1 - Communication method and apparatus, terminal device, and network device - Google Patents

Abstract

The present application relates to the technical field of communications, and discloses a communication method and apparatus, a terminal device, and a network device. As the number of receiving antennas of a receiver is increased, in order to ensure that the receiver has low complexity in the case of a large number of receiving antennas, the receiver may be split into a plurality of sub-receivers, so that each sub-receiver has a small number of receiving antennas, and in order to achieve SRS antenna switching in the case of a plurality of sub-receivers, in the present application, each SRS resource set among at least one SRS resource set corresponds to a set group, or each SRS resource among all SRS resources of the at least one SRS resource set corresponds to a resource group, or each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group, so that SRSs are grouped, so as to adapt to the SRS antenna switching in the case of the plurality of sub-receivers by means of SRS grouping, thereby ensuring uplink transmission performance and reliability.

Description

Communication method and device, terminal equipment and network equipment

The present invention claims priority of the prior application No. 202311594830.7 filed on November 27, 2023, with the invention name “Communication method and apparatus, terminal equipment and network equipment”. The contents of the above-mentioned prior application are incorporated into this text by introduction.

Technical Field

The present application relates to the field of communication technology, and in particular to a communication method and apparatus, terminal equipment and network equipment.

Background Art

In a time division duplex (TDD) system, the uplink and downlink channels have reciprocity. Therefore, the network equipment can perform channel estimation on the downlink channel corresponding to the uplink channel based on the sounding reference signal (SRS) on the uplink channel in order to obtain downlink channel state information (DL CSI).

Due to factors such as antenna cost and uplink rate requirements, the number of transmit channels of terminal devices is usually less than the number of receive channels, that is, the number of transmit antennas is less than the number of receive antennas, resulting in the terminal devices having different uplink and downlink antenna transceiver capabilities or limited transmit antenna capabilities. In this way, since SRS needs to be sent on the transmit antenna, and the number of transmit antennas is less than the number of receive antennas, SRS can only perform channel estimation on some downlink channels. In order to enable SRS to perform channel estimation on all downlink channels, the 3rd Generation Partnership Project (3GPP) introduced SRS antenna switching (also known as SRS antenna rotation).

At present, the research related to SRS antenna switching regards the terminal device as a receiver with a receiving antenna. However, as the number of receiving antennas of the receiver increases, in order to ensure that the receiver has low complexity under a large number of receiving antennas, the receiver may be split into multiple sub-receivers, so that each sub-receiver has a small number of receiving antennas. At this time, how to perform SRS antenna switching under multiple sub-receivers requires further research.

Summary of the invention

The present application provides a communication method and apparatus, a terminal device and a network device, in the hope of solving the problem of SRS antenna switching under multiple sub-receivers, and ensuring uplink transmission performance and reliability.

The first aspect is a communication method of the present application, comprising:

Acquire at least one sounding reference signal SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in the at least one SRS resource set corresponds to a set group identifier ID; or,

Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group.

It can be seen that this embodiment can group SRS by having each SRS resource set in at least one SRS resource set correspond to a set group, or each SRS resource in all SRS resources in at least one SRS resource set correspond to a resource group, or each SRS port in all SRS ports in at least one SRS resource set correspond to a port group, so as to adapt to SRS antenna switching under multiple sub-receivers through SRS grouping to ensure uplink transmission performance and reliability.

A second aspect is a communication method of the present application, comprising:

Sending information for configuring at least one sounding reference signal SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in the at least one SRS resource set corresponds to a set group identifier ID; or,

Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group.

A third aspect is a communication device of the present application, comprising:

An acquisition unit, configured to acquire at least one sounding reference signal SRS resource set, wherein the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in the at least one SRS resource set corresponds to a set group identifier ID; or,

Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group.

A fourth aspect is a communication device of the present application, comprising:

a sending unit, configured to send information for configuring at least one sounding reference signal SRS resource set, wherein the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in the at least one SRS resource set corresponds to a set group identifier ID; or,

Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group.

In a fifth aspect, the steps in the method designed in the first aspect are applied to a terminal device or in a terminal device.

In a sixth aspect, the steps in the method designed in the second aspect are applied to a network device or in a network device.

The seventh aspect is a terminal device of the present application, comprising a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect above.

The eighth aspect is a network device of the present application, comprising a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the second aspect above.

The ninth aspect is a chip of the present application, comprising a processor, wherein the processor executes the steps in the method designed in the first aspect or the second aspect above.

Optionally, the chip also includes a communication interface, and the processor executes the sending step and/or receiving step in the method designed in the first aspect or the second aspect through the communication interface.

The tenth aspect is a chip module of the present application, comprising a chip, wherein the chip comprises a processor, wherein the processor executes the steps in the method designed in the first aspect or the second aspect above.

Optionally, the chip module also includes a transceiver component, and the processor executes the sending step and/or receiving step in the method designed in the first aspect or the second aspect through the transceiver component.

In an eleventh aspect, a computer-readable storage medium of the present application is provided, wherein a computer program or instruction is stored therein, and when the computer program or instruction is executed, the steps in the method designed in the first aspect or the second aspect are implemented. For example, the computer program or instruction is executed by a processor.

A twelfth aspect is a computer program product of the present application, comprising a computer program or an instruction, wherein when the computer program or the instruction is executed, the steps in the method designed in the first aspect or the second aspect are executed. For example, the computer program or the instruction is executed by a processor.

The thirteenth aspect is a communication system of the present application, comprising a communication device (for example, a terminal device or a chip) for executing any one of the methods provided in the first aspect, and/or, comprising a communication device (for example, a network device or a chip) for executing any one of the methods provided in the second aspect.

The fourteenth aspect is a communication system of the present application, comprising the terminal device provided in the seventh aspect and/or the network device provided in the eighth aspect.

The beneficial effects brought about by the technical solutions of the second to fourteenth aspects can be referred to the technical effects brought about by the technical solution of the first aspect, and will not be repeated here.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present application;

FIG2 is a schematic diagram of the architecture of another communication system according to an embodiment of the present application;

FIG3 is a flow chart of a communication method according to an embodiment of the present application;

FIG4 is a block diagram of functional units of a communication device according to an embodiment of the present application;

5 is a block diagram of functional units of another communication device according to an embodiment of the present application;

FIG6 is a schematic diagram of the structure of a terminal device according to an embodiment of the present application;

FIG. 7 is a schematic diagram of the structure of a network device according to an embodiment of the present application.

DETAILED DESCRIPTION

It should be understood that the terms "first", "second", etc. involved in the embodiments of the present application are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, software, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products, or devices.

The "embodiment" involved in the embodiments of the present application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

In the embodiments of the present application, "and/or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and/or B can represent the following three situations: A exists alone; A and B exist at the same time; B exists alone. Among them, A and B can be singular or plural.

In the embodiment of the present application, the symbol "/" can indicate that the objects before and after are in an "or" relationship. Of course, the symbol "/" can also indicate that the objects before and after are in an "and" relationship. For example, A/B can indicate the following three situations: A, B, A and B. Each of A and B can be an element or a set containing one or more elements.

In the embodiments of the present application, "at least one item" or similar expressions refer to any combination of these items, including any combination of single items or plural items, and refer to one or more, and multiple refers to two or more. For example, at least one item of a, b, or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b, and c. Among them, each of a, b, and c can be an element or a set containing one or more elements.

In the embodiments of the present application, "equal to" can be used in conjunction with greater than, and is applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, and is applicable to the technical solution adopted when less than. When equal to is used in conjunction with greater than, it is not used in conjunction with less than; when equal to is used in conjunction with less than, it is not used in conjunction with greater than.

In the embodiments of the present application, the terms “of”, “corresponding/relevant/related”, “corresponding”, “indicated”, “associated”, etc. may sometimes be used interchangeably.

The words “associated with,” “corresponding to,” “corresponding to,” “is,” “of,” “for,” “belonging to,” “as,” and “regarded as” etc. involved in the embodiments of the present application may sometimes be used interchangeably.

The "connection" in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and there is no limitation on this.

The “network” in the embodiments of the present application can be expressed as the same concept as the “system”, and the communication system is the communication network.

The following describes the relevant contents, concepts, meanings, technical issues, technical solutions and beneficial effects involved in the embodiments of the present application.

1. Communication System

【Communication system】

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based Access to Unlicensed Spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wi-Fi), 6th-Generation (6G) communication system or other communication systems, etc.

It should be noted that the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, communication systems can not only support traditional communication systems, but also support device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine type communication (MTC), vehicle-to-vehicle (V2V) communication, vehicle-to-everything (V2X) communication, narrowband Internet of Things (NB-IoT) communication, etc. Therefore, the technical solution of the embodiment of the present application can also be applied to the above communication systems.

In addition, the technical solutions of the embodiments of the present application can be applied to beamforming (beamforming), carrier aggregation (CA), dual connectivity (DC) or standalone (SA) deployment scenarios, etc.

In the embodiment of the present application, the spectrum used for communication between the terminal device and the network device can be a licensed frequency band or an unlicensed frequency band, and there is no limitation on this. In addition, the unlicensed frequency band can be understood as a shared frequency band, and the licensed spectrum can be understood as a non-shared frequency band.

Since the embodiments of the present application describe various embodiments in conjunction with terminal devices and network devices, the terminal devices and network devices involved will be described in detail below.

【Terminal equipment】

Terminal equipment can be a device with transceiver functions, and can also be called terminal, user equipment (UE), remote terminal equipment (remote UE), relay equipment (relay UE), access terminal equipment, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent or user device. It should be noted that relay equipment is a terminal equipment that can provide relay forwarding services for other terminal equipment (including remote terminal equipment).

For example, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

For another example, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR communication system, a 6G communication system), or a terminal device in a future evolved public land mobile communication network (PLMN), etc., without specific limitation.

Optionally, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can be deployed on the water (such as ships); it can be deployed in the air (such as airplanes, balloons and satellites).

Optionally, the terminal device may include a device with wireless communication function, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip and may also include other discrete devices.

Optionally, the terminal device can be a chip, a chip module, a device, a unit, etc., without specific limitation.

【Network equipment】

A network device may be a device with transceiver functions and may be used to communicate with a terminal device.

Optionally, the network equipment can be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data transmission and reception, etc. on the air interface side.

Optionally, the network equipment may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) to provide wireless communication functions, that is, the network equipment may include a device in the RAN.

For example, the devices in the RAN may include the evolutionary node B (eNB or eNodeB) in the LTE communication system, the next generation evolved node B (ng-eNB) in the NR communication system, the next generation node B (gNB) in the NR communication system, the master node (MN) in the dual connection architecture, the second node or secondary node (SN) in the dual connection architecture, etc., without specific limitation.

Optionally, the network equipment may include equipment in a core network (CN).

For example, the equipment in CN may include access and mobility management function (AMF), user plane function (UPF), session management function (SMF), etc.

Optionally, the network device may also be an access point (AP) in a WLAN, a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, etc.

Optionally, the network device may include a device having a wireless communication function for the terminal device, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip, or may include other discrete devices.

Optionally, the network device can be a transmission and reception point (TRP).

Optionally, the network device can communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks.

Optionally, the network device may include an independent node to implement the functions of the above-mentioned base station, or may include two or more independent nodes to implement the functions of the above-mentioned base station. For example, the network device includes a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU. Further, in some other embodiments of the present application, the network device may also include an active antenna unit (AAU). Among them, the CU implements part of the functions of the network device, and the DU implements another part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation (SDAP) layer, and the packet data convergence (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU can implement some physical layer processing functions, RF processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this network deployment, high-level signaling (such as RRC signaling) can be considered to be generated by the CU, sent by the DU, or sent jointly by the DU and the AAU. It can be understood that the network device may include at least one of the CU, DU, and AAU. In addition, the CU can be divided into a RAN device, or the CU can be divided into a core network device, without specific limitation.

Optionally, the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site coherent joint transmission may be multiple sites coherent transmission, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission. Names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent joint transmission may be Remote Radio Head (RRH), TRP, etc., and there is no specific limitation on this.

Optionally, the network device may be any one of the multiple sites that perform non-coherent joint transmission (NCJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site non-coherent joint transmission may be multiple sites joint non-coherent transmission, or different data belonging to the same PDSCH is sent from different sites to the terminal device. The names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site non-coherent joint transmission may be RRH, TRP, etc., and there is no specific limitation on this. The transmission scheme of multiple TRPs may include an M-TRP (single-downlink control information based M-TRP, S-DCI based M-TRP) transmission scheme based on a single downlink control information, and may also include an M-TRP (multiple-downlink control information based M-TRP, M-DCI based M-TRP) transmission scheme based on multiple DCIs.

S-DCI based M-TRP can be reflected in that one DCI can indicate multiple transmission configuration indicator (TCI) states, or one DCI can include multiple sounding reference signal resource indicator (SRS resource indicator, SRI) fields, etc. Of course, S-DCI based M-TRP can also be reflected through other concepts/parameters, which are not specifically limited.

M-DCI based M-TRP can be reflected in that the network will configure multiple control resource set pool index (control resource set pool index, CORESET pool index, referred to as CORESETPoolIndex) values, such as CORESETPoolIndex = 0, CORESETPoolIndex = 1. Of course, M-DCI based M-TRP is reflected through other concepts/parameters, and no specific limitation is made to this.

It should be noted that the TRP of the present application is not limited to CJT or NCJT scenarios, but can also be applied to other scenarios without specific restrictions.

Optionally, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

Optionally, the network device can provide services for the cell, and the terminal device in the cell can communicate with the network device through transmission resources (such as spectrum resources). The cell can be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.

Optionally, the network device may be a chip, a chip module, a device, a unit, etc., without specific limitation.

4. Example

The following is an exemplary description of the communication system in an embodiment of the present application.

For example, a network architecture of a communication system in an embodiment of the present application can be referred to in Figure 1. As shown in Figure 1, the communication system 10 may include a network device 110 and a terminal device 120. The terminal device 120 may communicate with the network device 110 in a wireless manner.

FIG. 1 is merely an example of a network architecture of a communication system and does not constitute a limitation on the network architecture of the communication system in the embodiment of the present application.

For example, the communication system 10 may also include a server or other devices.

For another example, the communication system 10 may include other network devices in addition to the network device 110 .

For another example, the communication system 10 may include other terminal devices in addition to the terminal device 120 .

2. SRS grouping

【SRS】

SRS is an important uplink reference signal in communication systems and is widely used in various functions in communication systems (such as 5G NR systems). For example, it is used for uplink channel estimation; for terminal device detection process for downlink CSI acquisition; for uplink beam management; for positioning functions; in conjunction with codebook-based uplink transmission, such as frequency domain scheduling and Rank/precoding matrix indicator (PMI)/modulation coding scheme (MCS) determination; in conjunction with non-codebook-based uplink transmission, such as frequency domain scheduling and SRS resource indicator (SRI)/MCS determination; and so on.

SRS can support three different transmission modes: periodic, semi-persistent, and aperiodic.

Periodic SRS refers to the periodic transmission of SRS, whose period and slot offset can be configured by high-level signaling (such as RRC signaling).

If the terminal device receives relevant configuration information configured by high-level signaling, the terminal device sends SRS at a certain period according to the relevant configuration information until the relevant configuration information becomes invalid.

The spatial relation information of the periodic SRS may also be configured by high-level signaling (such as RRC signaling or MAC signaling) and/or configured/indicated by DCI. The spatial relation information is used to indicate the transmitted beam in an implicit manner, and the spatial relation information may indicate a channel state information reference signal (CSI-RS), a synchronization signal block (SSB) or an SRS. Therefore, the terminal device may determine the transmit beam of the SRS resource based on the receive beam of the CSI-RS/SSB indicated by the spatial relation information, or determine the transmit beam of the SRS based on the transmit beam of the reference SRS.

The period and time slot offset of semi-persistent SRS can be configured by high-level signaling (such as RRC signaling), but its activation signaling and deactivation signaling can be carried by the control element (MAC CE) of the media access control layer. Among them, the terminal device starts to transmit SRS periodically after receiving the activation signaling until it receives the deactivation signaling. At the same time, the spatial related information of semi-persistent SRS is carried together by the MAC CE that activates SRS.

After receiving the period and time slot offset configured by RRC signaling, the terminal device determines the time slot for transmitting SRS according to the following formula:

in, represents the number of time slots in a system frame when the subcarrier is configured as μ, _nf represents the system frame number (SFN), represents the time slot index number in a system frame when the subcarrier is configured μ, T _offset represents the time slot offset configured by high-level signaling, and T _SRS represents the period configured by high-level signaling.

Aperiodic SRS refers to aperiodic transmission of SRS.

The network device can trigger the non-periodic transmission of SRS through DCI. In addition, the trigger signaling used to trigger the non-periodic SRS transmission can be carried by the DCI used to schedule the physical uplink shared channel (PUSCH) or PDSCH in the UE-specific search space, or by the DCI format 2_3 (DCI format 2_3) in the public search space. Among them, DCI format 2_3 can not only be used to trigger non-periodic SRS transmission, but also can be used to configure the transmit power control command (transmit power control command, TPC command) of SRS on a group of UEs or a group of carriers. In addition, DCI format 2_3 can also carry a 2-bit SRS request to trigger the non-periodic transmission of SRS.

When the terminal device receives the non-periodic SRS trigger signaling (such as DCI), it performs non-periodic SRS transmission based on the SRS resource set indicated by the trigger signaling. Among them, the time slot offset between the trigger signaling and the non-periodic SRS transmission is configured by high-level signaling (such as RRC signaling) and/or indicated/configured by DCI. At the same time, the network device pre-indicates the configuration parameters of each SRS resource set to the terminal device through high-level signaling, including time-frequency resources, etc. In addition, for each SRS resource in the triggered SRS resource set, the terminal device can also determine the transmission beam used to transmit the SRS corresponding to the SRS resource through the spatial related information of the SRS resource, and the spatial related information can be configured to each SRS resource through RRC signaling/MAC signaling/DCI, etc.

【SRS Resources】

A high-level parameter (such as SRS-ResourceSet or SRS-PosResourceSet) can configure at least one SRS resource set (SRS resource set) to a terminal device. Each SRS resource set can include K (K ≥ 1) SRS resources (SRS resource), and the SRS resource can be configured by a high-level parameter (such as SRS-Resource or SRS-PosResource), and the maximum value of K can be determined by the terminal device capability.

The applicability of the SRS resource set is configured by a higher-level parameter. For example, the field usage in the higher-level parameter SRS-ResourceSet can configure SRS antenna switching (also known as SRS antenna rotation).

An SRS resource can be configured by higher-level parameters (such as SRS-Resource or SRS-PosResource), including:

1) SRS port, the SRS port i among the SRS ports The port index number is represented as That is, the maximum number of SRS ports included in the SRS resource configured by the high-level parameters (such as nrofSRS-Ports) is L, and the port index number of the SRS port i (i∈{0,1,...,L-1}) among the L SRS ports is expressed as

For example, when When , for 5 SRS ports, the port index number of SRS port 0 is p ₀ =1000, the port index number of SRS port 1 is p ₁ =1001, the port index number of SRS port 2 is 1002, the port index number of SRS port 3 is 1003, and the port index number of SRS port 4 is 1004.

The maximum number of SRS ports contained in the SRS resource (i.e. The value of can be configured by a higher-level parameter (such as nrofSRS-Ports). If this higher-level parameter is not configured, In addition, when the SRS resource is located in an SRS resource set whose high-level parameter (such as usage) is set to 'nonCodebook', or when the SRS resource is located in an SRS resource set whose high-level parameter (such as usage) is set to "nonCodebook", p _i =1000+i.

2) consecutive OFDM symbols. The value of is configured by high-level parameters.

For example, the nrofSymbols field in the high-level parameter resourceMapping is configured

3) The time-domain starting position of SRS is l ₀ . The offset l _offset ∈{0,1,...,13} counts OFDM symbols backwards from the end of the slot and is given by higher-level parameters, and

For example, the field startPosition in the high-level parameter resourceMapping is configured to 1 ₀ .

4) The frequency-domain starting position k ₀ of the SRS.

【SRS Antenna Switch】

The SRS antenna switching can utilize the reciprocity of uplink and downlink channels, and use the SRS on the uplink channel to perform channel estimation on the downlink channel corresponding to the uplink channel, so as to obtain the downlink CSI.

The SRS antenna switching (SRS-TxPortSwitch) mode supported by the terminal device may be xTyR (T represents the transmitting antenna port, and R represents the receiving antenna port). Among them, x can be physically actual, can be logical, etc.; y can be physically actual, can be logical, etc., and there is no specific limitation on this. In a possible implementation, x represents the number of transmitting antenna ports used simultaneously for one transmission, and y represents the number of receiving antenna ports used simultaneously for one reception.

Optionally, xTyR includes the following: 1T2R, 2T4R, 1T4R, 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 1T＝1R, 2T＝2R, 4T＝4R, 8T＝8R, etc.

For 1T2R, the network device can be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets (SRS resource sets). Each SRS resource set includes 2 SRS resources, and each SRS resource includes 1 SRS port. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports (UE antenna ports).

For 1T2R, the network device can configure 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured. Each SRS resource includes 1 SRS port, and each SRS port is associated with a different terminal device antenna port. For 1T4R, the network device can configure 0 or 1 periodic or semi-continuous SRS resource set; each SRS resource set includes 4 SRS resources, each SRS resource includes 1 SRS port, and the SRS port of each SRS resource is associated with a different terminal device antenna port.

For 1T4R, the network device can configure 0, 1, 2 or 4 non-periodic SRS resource sets, and a total of 4 SRS resources can be configured. Each SRS resource includes 1 SRS port, and the SRS port of each SRS resource is associated with a different terminal device antenna port.

For 2T4R, the network device can be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets; each SRS resource set includes 2 SRS resources, and each SRS resource includes 2 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 2T4R, the network device can configure 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured. Each SRS resource includes 2 SRS ports, and the SRS port of each SRS resource is associated with different terminal device antenna ports.

For 1T6R, the network device can configure 0 or 1 periodic SRS resource sets, each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port. SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 1T6R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets; each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 1T6R, the network device can configure 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 6 SRS resources can be configured. Each SRS resource includes 1 SRS port, and the SRS port of each SRS resource is associated with a different terminal device antenna port.

For 1T8R, the network device can configure 0 or 1 periodic SRS resource sets; each SRS resource set includes 8 SRS resources, and each SRS resource includes 1 SRS port. SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 1T8R, the network device can be configured with 0, 1 or 2 semi-continuous SRS resource sets; each SRS resource set includes 8 SRS resources, and each SRS resource includes 1 SRS port. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 1T8R, the network device can configure 0, 2, 3 or 4 non-periodic SRS resource sets, and a total of 8 SRS resources can be configured. Each SRS resource includes 1 SRS port, and the SRS port of each SRS resource is associated with a different terminal device antenna port.

For 2T6R, the network device can configure 0 or 1 periodic SRS resource sets, each SRS resource set includes 3 SRS resources, and each SRS resource includes 2 SRS ports. SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 2T6R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each of which includes 3 SRS resources and each of which includes 2 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 2T6R, the network device can configure 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 3 SRS resources can be configured. Each SRS resource includes 2 SRS ports, and the SRS port of each SRS resource is associated with a different terminal device antenna port.

For 2T8R, the network device can configure 0 or 1 periodic SRS resource sets; each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 2T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each of which includes 4 SRS resources and each of which includes 2 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 2T8R, the network device can configure 0, 1, 2, 3 or 4 non-periodic SRS resource sets, and a total of 4 SRS resources can be configured. Each SRS resource includes 2 SRS ports, and the SRS port of each SRS resource is associated with different terminal device antenna ports.

For 4T8R, the network device can configure 0 or 1 periodic SRS resource sets, each SRS resource set includes 2 SRS resources, and each SRS resource includes 4 SRS ports. SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 4T8R, the network device can be configured with 0, 1 or 2 semi-continuous SRS resource sets, each of which includes 2 SRS resources and 4 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

For 4T8R, the network device can be configured with 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured. Each SRS resource includes 4 SRS ports, and the SRS port of each SRS resource is associated with different terminal device antenna ports.

For 1T=1R, 2T=2R or 4T=4R or 8T=8R, at most 2 or 3 SRS resource sets can be configured, each SRS resource set includes 1 SRS resource, and the SRS port of each SRS resource is 1, 2, 4 or 8.

In summary, for periodic or semi-continuous SRS resource sets, only one SRS resource set may be needed to complete an antenna switch, and the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the number of receiving antennas of the terminal device.

For non-periodic SRS resource sets, all SRS resources of all SRS resource sets may be required to complete an antenna switch, and the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be equal to the number of receiving antennas of the terminal device.

[SRS Grouping]

At present, the research related to SRS antenna switching regards the terminal device as a receiver with a receiving antenna. However, as the number of receiving antennas of the receiver increases, in order to ensure that the receiver has low complexity under a large number of receiving antennas, the receiver may be split into multiple sub-receivers, so that each sub-receiver has a smaller number of receiving antennas.

It should be noted that the "receiver" and "sub-receiver" mentioned in this embodiment can be a logical unit, a physical unit, an entity unit, a hardware unit, or a software unit, and there is no specific limitation on this.

This embodiment can determine whether the receiver needs to be split based on whether the number of receiving antennas of the terminal device exceeds a preset value (such as 4). If the number of receiving antennas is less than or equal to the preset value, the receiver is not split; if the number of receiving antennas is greater than the preset value, the receiver is split. Among them, the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receivers of the terminal device, or the value of y in the antenna switching mode xTyR".

For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T＝1R, 2T＝2R, 4T＝4R, etc., the terminal device has 2 receiving antenna receivers (2RX receiver), 4Rx receivers, etc. At this time, these receivers are not split.

For another example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., the terminal device has a 6Rx receiver, an 8Rx receiver, etc. At this time, the 6Rx receiver can be split into a 2Rx receiver and a 4Rx receiver, or can be split into three 2Rx receivers, etc.; the 8Rx receiver can be split into a 4Rx receiver and a 4Rx receiver, or can be split into a 2Rx receiver and a 6Rx receiver, or can be split into two 2Rx receivers and a 4Rx receiver, or can be split into four 2Rx receivers, etc.

At the same time, in the SRS antenna switching, since the sum of the number of SRS ports of all SRS resources in each periodic or semi-continuous SRS resource set is equal to the number of receiving antennas of the terminal device, or the sum of the number of SRS ports of all SRS resources in all non-periodic SRS resource sets is equal to the number of receiving antennas of the terminal device, this embodiment can also determine whether the receiver needs to be split by whether the sum of the number of SRS ports exceeds the preset value. If the sum of the number of SRS ports is less than or equal to the preset value, the receiver is not split; if the sum of the number of SRS ports is greater than the preset value, the receiver is split.

In addition, the receiver can be implemented by an antenna panel, and multiple sub-receivers can be implemented by multiple antenna panels. At the same time, in the face of multiple sub-receivers/multiple antenna panels, the terminal device receive antenna port (UEreceive antenna port) needs to be grouped (grouping) to obtain multiple terminal device antenna port groups, and the multiple terminal device antenna port groups correspond one to one with the multiple sub-receivers/multiple antenna panels.

It should be noted that the "receiver", "sub-receiver", "receiving antenna receiver", "antenna panel" and "terminal device antenna port group" mentioned in this embodiment can be logical units, physical units, entity units, hardware units, or software units, and there is no specific limitation on this.

However, in the face of multiple sub-receivers/multiple antenna panels/multiple terminal device receiving antenna port groups, when using SRS to obtain downlink CSI in a TDD communication system, since the downlink CSI needs to be separated for each sub-receiver/each antenna panel/each terminal device antenna port group, that is, each sub-receiver/each antenna panel/each terminal device antenna port group corresponds to one downlink CSI, it is necessary to group the SRS to obtain multiple SRS groups and establish a one-to-one correspondence between multiple SRS groups and multiple sub-receivers/multiple antenna panels/multiple terminal device antenna port groups. In this way, through the corresponding relationship, the network device can obtain the downlink CSI corresponding to each terminal device antenna port group/antenna panel/sub-receiver to ensure the accuracy of reception and processing.

For example, the downlink CSI is downlink precoding (DL precoding), and the 8RX receiver is split into two 4Rx sub-receivers, as shown in FIG2 . In FIG2 , in order to reduce the complexity of the terminal device 210 , the terminal device 210 implements 8 receiving antennas through two independent sub-receivers (i.e., 4Rx sub-receiver 2101 and 4Rx sub-receiver 2102) with four receiving antennas. In other words, the 8Rx receiver is split into two 4Rx sub-receivers. Among them, the 4Rx sub-receiver 2101 corresponds to the receiving antenna port group 0, and the 4Rx sub-receiver 2102 corresponds to the receiving antenna port group 1. In addition, the network device 220 sends multiple beams, and the beam 2201 faces the 4Rx sub-receiver 2101, and the beam 2202 faces the 4Rx sub-receiver 2102.

Since downlink precoding needs to be separated for each receive antenna port group, that is, each sub-receiver (every 4 receive antennas) corresponds to a downlink precoding. For TDD communication systems, since downlink precoding is based on SRS measurement, SRS needs to be grouped so that 2 SRS groups correspond to 2 receive antenna port groups/2 sub-receivers/2 antenna panels.

In this way, when the 4Rx sub-receiver 2101 sends the SRS corresponding to the receiving antenna port group 0 to the network device 220, and the 4Rx sub-receiver 2102 sends the SRS corresponding to the receiving antenna port group 1 to the network device 220, the network device 220 can obtain the downlink precoding corresponding to the 4Rx sub-receiver 2101 according to the SRS corresponding to the receiving antenna port group 0, and the network device 220 can obtain the downlink precoding corresponding to the 4Rx sub-receiver 2102 according to the SRS corresponding to the receiving antenna port group 1.

It should be noted that this embodiment involves two cases: the receiver is not split and the receiver is split. When the receiver is not split, the terminal device still has a single receiver/single antenna panel/single receiving antenna port group, and the terminal device receiving antenna port does not need to be grouped. At this time, this embodiment does not need to group the SRS. When the receiver is split, the terminal device has multiple sub-receivers/multiple antenna panels/multiple receiving antenna port groups, and the terminal device receiving antenna ports need to be grouped. At this time, this embodiment needs to group the SRS.

Since the network device will configure at least one SRS resource set for the terminal device, each SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port, the present embodiment groups the SRS, which involves grouping the SRS resource set/SRS resource/SRS port, which will be described in detail below with multiple schemes.

It should be noted that the various solutions can be independent, combined and associated. The same contents between different solutions can be referenced to each other, and the same contents will not be repeated in this embodiment.

[Solution 1]

a. Description

In "Scheme 1", this embodiment groups SRS resource sets, so for at least one SRS resource set configured by the network, each SRS resource set corresponds to a group. For ease of distinction, the "group" here is referred to as a "set group", and the set group may have a unique identifier (ID) or index (index), the ID may be referred to as a "set group ID", the index may be referred to as a "set group index", and the set group ID/set group index may be used to identify the group/set group to which the SRS resource set belongs. In the following, the "set group" mentioned in this embodiment may be replaced/equal to/regarded as a "set group ID/set group index", and no specific restrictions are imposed on this. The following embodiment uses the "set group ID" as an example for explanation, and the "set group ID" may be replaced with the "set group index" to implement the same technical solution, which will not be described in detail.

Optionally, the collection group ID can be configured by the network. For example, the network device can explicitly configure the collection group ID.

It should be noted that SRS resource sets with the same set group ID belong to the same group and correspond to the same terminal device receiving antenna port group/antenna panel/sub-receiver; SRS resource sets with different set group IDs belong to different groups and correspond to different terminal device receiving antenna port groups/antenna panels/sub-receivers. Among them, the terminal device receiving antenna port group can have a unique ID or index, and the ID/index can be called "terminal device receiving antenna port group ID/terminal device receiving antenna port group index". The following embodiment uses the "terminal device receiving antenna port group ID" as an example for explanation, and the "terminal device receiving antenna port group ID" can be replaced with the "terminal device receiving antenna port group index" to implement the same technical solution, which will not be repeated.

For example, the network device is configured with 3 SRS resource sets, the set group corresponding to the first SRS resource set is X (X represents the set group ID), the set group corresponding to the second SRS resource set is Y (Y represents the set group ID), and the set group corresponding to the third SRS resource set is X. It can be seen that the first SRS resource set and the third SRS resource set belong to the same group.

In this way, when the network device obtains the downlink CSI based on all SRS resources of the SRS resource set within the same collection group, the downlink CSI is the downlink CSI of the receiving antenna port group/antenna panel/sub-receiver of the terminal device corresponding to the collection group, so that the downlink channel evaluation of the receiving antenna port group/antenna panel/sub-receiver can be performed based on the downlink CSI.

Optionally, each SRS resource set corresponds to a set group, which may be network configured, pre-configured, specified by a protocol, or determined according to certain rules.

For example, taking network configuration as an example, the network device will send high-level signaling (such as MAC signaling or RRC signaling) or DCI or system information to the terminal device to configure each SRS resource set to correspond to a set group.

Optionally, the at least one SRS resource set may correspond to at least one set group, the set group corresponding to each SRS resource set is one of the at least one set group, and all SRS resources in each SRS resource set have the same set group, so that the group to which each SRS resource set belongs can be known through the set group corresponding to each SRS resource set.

Among them, the at least one set group corresponds to at least one terminal device receiving antenna port group/antenna panel/sub-receiver. In this way, through the corresponding relationship, the network device can obtain the downlink CSI of the terminal device antenna port group/antenna panel/sub-receiver corresponding to the set group according to all SRS resource sets in a set, ensuring the accuracy of reception and processing.

It should be noted that the at least one SRS resource set corresponds to at least one set group, which can be understood as the at least one SRS resource set corresponds to one or more set groups.

b. At least one SRS resource set corresponds to a set group

The at least one SRS resource set corresponds to a set group, which can be understood as that all SRS resource sets of the at least one SRS resource set are in the same group.

At this time, it is equivalent to not needing to perform SRS grouping for the at least one SRS resource set. The need to not perform SRS grouping can be determined based on the sum of the number of receiving antennas of the terminal device/the sum of the number of SRS ports/the sum of the number of SRS resource sets being less than or equal to a preset value, or based on network configuration information.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to a set group.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., the periodic or semi-continuous SRS resource set configured by the network device corresponds to a set group.

For 1T2R, the network device can be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets, each SRS resource set includes 2 SRS resources, and each SRS resource includes 1 SRS port; each SRS resource set corresponds to the same set group, and all SRS resources in each SRS resource set have the same set group.

For 1T4R, the network device can be configured with 0 or 1 periodic or semi-continuous SRS resource sets, each SRS resource set includes 4 SRS resources, and each SRS resource includes 1 SRS port; each SRS resource set corresponds to the same set group, and all SRS resources in each SRS resource set have the same set group.

For 2T4R, the network device can be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets, each SRS resource set includes 2 SRS resources, and each SRS resource includes 2 SRS ports; each SRS resource set corresponds to the same set group, and all SRS resources in each SRS resource set have the same set group.

For 1T=1R, 2T=2R or 4T=4R, at most two SRS resource sets can be configured, each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2 or 4; each SRS resource set corresponds to the same set group, and all SRS resources in each SRS resource set have the same set group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of all SRS resource sets or the sum of all activated SRS resource sets may be equal to the number of sub-receivers/antenna panels/receiving antenna port groups of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of target SRS resource sets is less than or equal to the number of sub-receivers/antenna panels/receiving antenna port groups of the terminal device, then the at least one SRS resource set corresponds to a set group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is equal to the value of y, then the at least one SRS resource set corresponds to a set group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources of the at least one SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to a set group.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., the non-periodic SRS resource set configured by the network device corresponds to a set group.

For 1T2R, the network device can be configured with 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured, each SRS resource includes 1 SRS port; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

For 1T4R, the network device can be configured with 0, 1, 2 or 4 non-periodic SRS resource sets, and a total of 4 SRS resources can be configured, each SRS resource includes 1 SRS port; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

For 2T4R, the network device can be configured with 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured, each SRS resource includes 2 SRS ports; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

For 1T=1R, 2T=2R or 4T=4R, at most 2 or 3 SRS resource sets can be configured, each SRS resource set includes an SRS resource, and the SRS port of each SRS resource is 1, 2 or 4; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is equal to the value of y, then the at least one SRS resource set corresponds to a set group.

c. At least one SRS resource set corresponds to multiple set groups

The at least one SRS resource set corresponds to multiple set groups, and it can be understood that all SRS resource sets of the at least one SRS resource set are in multiple groups respectively.

At this time, it is equivalent to that SRS grouping is required for the at least one SRS resource set. The need for SRS grouping can be determined based on the sum of the number of receiving antennas of the terminal device/the sum of the number of SRS ports/the sum of the number of SRS resource sets being greater than a preset value, or based on network configuration information.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-persistent SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be greater than the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., the periodic or semi-continuous SRS resource sets configured by the network device correspond to multiple set groups.

For 1T6R, the network device can configure 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port; when 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets correspond to different SRS set groups respectively.

For 1T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 8 SRS resources, and each SRS resource includes 1 SRS port; when 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets correspond to different SRS set groups respectively.

For 2T6R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 3 SRS resources, and each SRS resource includes 2 SRS ports; when 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets correspond to different SRS set groups respectively.

For 2T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports; when 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets correspond to different SRS set groups respectively.

For 4T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 2 SRS resources, and each SRS resource includes 4 SRS ports; when 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets correspond to different SRS set groups respectively.

For 8T=8R, the network device can configure 0, 1, 2 or 3 semi-persistent SRS resource sets, each SRS resource set includes 1 SRS resource, and each SRS resource includes 8 SRS ports; when 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets correspond to different SRS set group IDs respectively.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be greater than the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources of the at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., the non-periodic SRS resource sets configured by the network device correspond to multiple set groups.

For 1T6R, the network device can configure 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 6 SRS resources can be configured, each SRS resource includes 1 SRS port; when multiple non-periodic SRS resource sets are configured, the multiple SRS resource sets correspond to different SRS set groups respectively.

For 1T8R, the network device can configure 0, 2, 3 or 4 non-periodic SRS resource sets, and a total of 8 SRS resources can be configured, each SRS resource includes 1 SRS port; when multiple non-periodic SRS resource sets are configured, the multiple SRS resource sets correspond to different SRS set groups respectively.

For 2T6R, the network device can configure 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 3 SRS resources can be configured, each SRS resource includes 2 SRS ports; when multiple non-periodic SRS resource sets are configured, the multiple SRS resource sets correspond to different SRS set groups respectively.

For 2T8R, the network device can be configured with 0, 1, 2, 3 or 4 non-periodic SRS resource sets, and a total of 4 SRS resources can be configured, each SRS resource includes 2 SRS ports; when multiple non-periodic SRS resource sets are configured, the multiple SRS resource sets correspond to different SRS set groups respectively.

For 4T8R, the network device can be configured with 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured, each SRS resource includes 4 SRS ports; when multiple non-periodic SRS resource sets are configured, the multiple SRS resource sets correspond to different SRS set groups respectively.

For 8T=8R, 0, 1, 2 or 3 non-periodic SRS resource sets can be configured, and a total of 1 SRS resource can be configured, and each SRS resource includes 8 SRS ports; when multiple non-periodic SRS resource sets are configured, the multiple SRS resource sets correspond to different SRS set group IDs respectively.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

d. Grouping of SRS resource collections

For at least one SRS resource set configured by the network, the group to which each SRS resource set in the at least one SRS resource set belongs can be determined by network configuration, protocol definition, preconfiguration, or according to certain rules. This embodiment is described below in various ways.

Method 1:

In "method 1", this embodiment can group all SRS resource sets in the at least one SRS resource set according to the number of set groups that need to be divided.

For example, when the at least one SRS resource set needs to be divided into two set groups, the first half of the SRS resource set in the at least one SRS resource set can be divided into one set group, and the second half of the SRS resource set can be divided into another set group, which is easy to implement.

Taking 2T8R as an example, for 2T8R, the network device can configure 2 semi-continuous SRS resource sets, each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports; when 2T8R is split into two 1T4Rs, the 2 SRS resource sets correspond to different SRS set groups, and each corresponds to one 1T4R.

For another example, when the at least one SRS resource set needs to be divided into three set groups, the first one-third of the SRS resource sets in the at least one SRS resource set can be divided into the first set group, the middle one-third of the SRS resource sets can be divided into the second set group, and the last one-third of the SRS resource sets can be divided into the third set group, which is easy to implement.

Method 2:

It should be noted that the SRS resource set may have a unique ID or index, the ID may be referred to as an "SRS resource set ID", the index may be referred to as an "SRS resource set index", and the SRS resource set ID/SRS resource set index may be used to identify the SRS resource set. The SRS resource set ID/SRS resource set index may be configured by the network. The following embodiment is described using the "SRS resource set ID" as an example, and the "SRS resource set ID" may be replaced with the "SRS resource set index" to implement the same technical solution, which will not be described in detail.

In "Method 2", this embodiment can sort all SRS resource sets in the at least one SRS resource set in the order of SRS resource set ID (SRS resource set ID), and group the sorted SRS resource sets according to the number of set groups that need to be divided.

The sorting is performed in the order of the SRS resource set IDs, which may be a sorting in the order of the SRS resource set IDs from small to large, or a sorting in the order of the SRS resource set IDs from large to small.

In this way, SRS resource sets with adjacent SRS resource set IDs can be divided into the same group as much as possible through sorting, which is easy to implement.

For example, when the sorted SRS resource set needs to be divided into two set groups, the first half of the SRS resource set in the sorted SRS resource set can be divided into one set group, and the second half of the SRS resource set can be divided into another set group. In this way, the SRS resource sets with larger SRS resource set IDs are grouped together and correspond to the same terminal device receiving antenna port group/antenna panel/sub-receiver, while the SRS resource sets with smaller SRS resource set IDs are grouped together and correspond to the same terminal device receiving antenna port group/antenna panel/sub-receiver, which is easy to implement.

For another example, when the sorted SRS resource sets need to be divided into three set groups, the first one-third of the SRS resource sets in the sorted SRS resource sets can be divided into the first set group, the middle one-third of the SRS resource sets can be divided into the second set group, and the last one-third of the SRS resource sets can be divided into the third set group. In this way, SRS resource sets with adjacent SRS resource set IDs are divided into the same group as much as possible, so that it is easy to implement.

Method 3:

In "method three", this embodiment may group all SRS resource sets in the at least one SRS resource set according to the odd or even number of the SRS resource set ID.

In this way, the SRS resource sets with odd-numbered SRS resource set IDs are one group and correspond to one terminal device receiving antenna port group/antenna panel/sub-receiver, while the SRS resource sets with even-numbered SRS resource set IDs are another group and correspond to another terminal device receiving antenna port group/antenna panel/sub-receiver, which makes it easy to implement.

Taking 4T8R as an example, for 4T8R, the network device can configure 2 non-periodic SRS resource sets; when 4T8R is split into two 2T4Rs, the 2 SRS resource sets correspond to different SRS set groups according to the odd and even numbers, and each corresponds to one 2T4R.

Method 4:

In "method four", this embodiment may calculate the modulus of the SRS resource set IDs of all SRS resource sets in the at least one SRS resource set and the number of set groups to be divided, and divide the SRS resource sets with the same remainder into the same group.

For example, if the number of sets to be divided is 2, (SRS resource set ID) mod 2 == 0 belongs to one group, and (SRS resource set ID) mod 2 == 1 belongs to another group. Similarly, grouping is performed according to the odd or even number of the SRS resource set ID.

For another example, taking the number of set groups to be divided as 3, (SRS resource set ID) mod 3 == 0 belongs to one group, (SRS resource set ID) mod 3 == 1 belongs to one group, and (SRS resource set ID) mod 3 == 2 belongs to one group.

For another example, taking the number of set groups to be divided as 4, (SRS resource set ID)mod 4==0 belongs to one group, (SRS resource set ID)mod 4==1 belongs to one group, (SRS resource set ID)mod 4==2 belongs to one group, and (SRS resource set ID)mod 4==3 belongs to one group.

The following embodiment is explained by taking the example that the at least one SRS resource set includes N (N is a positive integer) SRS resource sets, each of the N SRS resource sets has the same time domain behavior (i.e., all are periodic, semi-continuous or non-periodic), and the N SRS resource sets are divided into two groups.

The two groups are the first set group and the second set group, that is, the at least one set group corresponding to the at least one SRS resource set includes the first set group and the second set group. Of course, this embodiment is not limited to two groups, and can also be more than two groups, which will not be described in detail.

In this way, the N SRS resource sets include a first SRS resource set and a second SRS resource set, the first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group.

Optionally, the first SRS resource set includes the first or before The first SRS resource set includes the remaining SRS resource sets in the N SRS resource sets except the first SRS resource set. In this way, the first half of the SRS resource sets in the N SRS resource sets are divided into one set group, and the second half of the SRS resource sets are divided into another set group, which is easy to implement.

Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number; the SRS resource set ID of each SRS resource set in the second SRS resource set is an even number. In this way, the N SRS resource sets are grouped according to the odd and even numbers of the SRS resource set IDs, so that the SRS resource sets with odd SRS resource set IDs are grouped together, and the SRS resource sets with even SRS resource set IDs are grouped together, which is easy to implement.

Optionally, the N SRS resource sets are sorted in the order of the SRS resource set IDs. In this way, the SRS resource sets with adjacent SRS resource set IDs in the N SRS resource sets can be divided into the same group as much as possible, so that it is easy to implement.

[Solution 2]

a. Description

In "Solution 2", this embodiment groups SRS resources, so for all SRS resources of at least one SRS resource set configured by the network, each SRS resource corresponds to a group. For ease of distinction, the "group" here is referred to as a "resource group", and the resource group may have a unique ID or index, the ID may be referred to as a "resource group ID", the index may be referred to as a "resource group index", and the resource group ID/resource group index may be used to identify the group/resource group to which the SRS resource belongs. In the following, the "resource group" mentioned in this embodiment may be replaced/equal to/regarded as a "resource group ID/resource group index", and no specific restrictions are imposed on this. The following embodiment uses the "resource group ID" as an example for explanation, and the "resource group ID" may be replaced with the "resource group index" to implement the same technical solution, which will not be elaborated on.

Optionally, the resource group ID may be configured by the network. For example, a network device may explicitly configure the resource group ID.

It should be noted that SRS resources with the same resource group ID belong to the same group and correspond to the same terminal device receiving antenna port group/antenna panel/sub-receiver; SRS resources with different resource group IDs belong to different groups and correspond to different terminal device receiving antenna port groups/antenna panels/sub-receivers.

In this way, when the network device obtains the downlink CSI based on all SRS resources in the same resource group, the downlink CSI is the downlink CSI of the receiving antenna port group/antenna panel/sub-receiver of the terminal device corresponding to the resource group, so that the downlink channel evaluation of the receiving antenna port group/antenna panel/sub-receiver can be performed based on the downlink CSI.

Optionally, each SRS resource corresponds to a resource group, which may be network configured, pre-configured, or specified by a protocol.

For example, taking network configuration as an example, the network device may send high-level signaling (such as MAC signaling or RRC signaling) or DCI or system information to the terminal device to configure each SRS resource to correspond to a resource group.

Optionally, all SRS resources of the at least one SRS resource set may correspond to at least one resource group, and the resource group corresponding to each SRS resource is one of the at least one resource group, so that the group to which each SRS resource belongs can be known through the resource group corresponding to each SRS resource.

Among them, the at least one resource group corresponds to at least one terminal device receiving antenna port group/antenna panel/sub-receiver. In this way, through the corresponding relationship, the network device can obtain the downlink CSI of the terminal device antenna port group/antenna panel/sub-receiver corresponding to the resource group based on all SRS resources in a resource group, ensuring the accuracy of reception and processing.

It should be noted that all SRS resources of the at least one SRS resource set correspond to at least one resource group, which can be understood as all SRS resources of the at least one SRS resource set corresponding to one or more resource groups.

b. All SRS resources of at least one SRS resource set correspond to a resource group

All SRS resources of the at least one SRS resource set correspond to one resource group, which can be understood as that all SRS resources of the at least one SRS resource set are in the same group.

At this time, it is equivalent to not needing to perform SRS grouping for all SRS resources of the at least one SRS resource set. The need for SRS grouping can be determined based on the sum of the number of receiving antennas/the sum of the number of SRS ports/the sum of the number of SRS resource sets of the terminal device being less than or equal to a preset value, or based on network configuration information.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of the at least one SRS resource set correspond to one resource group.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., all SRS resources of the periodic or semi-continuous SRS resource set configured by the network device correspond to one resource group.

For 1T2R, the network device may be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets, each SRS resource set includes 2 SRS resources, each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to the same resource group.

For 1T4R, the network device may be configured with 0 or 1 periodic or semi-continuous SRS resource sets, each SRS resource set includes 4 SRS resources, each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to the same resource group.

For 2T4R, the network device may be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets, each SRS resource set includes 2 SRS resources, each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to the same resource group.

For 1T=1R, 2T=2R or 4T=4R, at most two SRS resource sets can be configured, each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2 or 4; all SRS resources of all SRS resource sets correspond to the same resource group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is equal to the value of y, then all SRS resources in the at least one SRS resource set correspond to one resource group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources of the at least one SRS resource set is less than or equal to a preset value, then all SRS resources of the at least one SRS resource set correspond to one resource group.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., all SRS resources of the non-periodic SRS resource set configured by the network device correspond to one resource group.

For 1T2R, the network device may be configured with 0, 1 or 2 non-periodic SRS resource sets, and may be configured with 2 SRS resources in total, each SRS resource including 1 SRS port; all SRS resources of all SRS resource sets correspond to the same resource group.

For 1T4R, the network device may be configured with 0, 1, 2 or 4 non-periodic SRS resource sets, and may be configured with a total of 4 SRS resources, each SRS resource including 1 SRS port; all SRS resources of all SRS resource sets correspond to the same resource group.

For 2T4R, the network device may be configured with 0, 1 or 2 non-periodic SRS resource sets, and may be configured with a total of 2 SRS resources, each SRS resource including 2 SRS ports; all SRS resources of all SRS resource sets correspond to the same resource group.

For 1T=1R, 2T=2R or 4T=4R, at most two SRS resource sets can be configured, each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2 or 4; all SRS resources of all SRS resource sets correspond to the same resource group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for a non-periodic SRS resource set, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is equal to the value of y, then all SRS resources of the at least one SRS resource set correspond to one resource group.

c. All SRS resources of at least one SRS resource set correspond to multiple resource groups

All SRS resources of the at least one SRS resource set correspond to multiple resource groups. It can be understood that all SRS resources of the at least one SRS resource set are in multiple groups respectively.

At this time, it is equivalent to that all SRS resources of the at least one SRS resource set need to be SRS grouped. The need for SRS grouping can be determined based on the sum of the number of receiving antennas/the sum of the number of SRS ports/the sum of the number of SRS resource sets of the terminal device being greater than a preset value, or based on network configuration information.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-persistent SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., all SRS resources of the periodic or semi-continuous SRS resource set configured by the network device correspond to multiple resource groups.

For 1T6R, the network device may be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 6 SRS resources, each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 1T8R, the network device may be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 8 SRS resources, each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 2T6R, the network device may be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 3 SRS resources, each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 2T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 4 SRS resources, each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 4T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 2 SRS resources, each SRS resource includes 4 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 8T=8R, the network device can be configured with 0, 1, 2 or 3 semi-persistent SRS resource sets, each SRS resource set includes 1 SRS resource, each SRS resource includes 8 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource group IDs.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is greater than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources of the at least one SRS resource set is greater than a preset value, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., all SRS resources of the non-periodic SRS resource set configured by the network device correspond to multiple resource groups.

For 1T6R, the network device may be configured with 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 6 SRS resources may be configured, each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 1T8R, the network device may be configured with 0, 2, 3 or 4 non-periodic SRS resource sets, and a total of 8 SRS resources may be configured, each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 2T6R, the network device may be configured with 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 3 SRS resources may be configured, each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 2T8R, the network device can be configured with 0, 1, 2, 3 or 4 non-periodic SRS resource sets, and a total of 4 SRS resources can be configured, each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 4T8R, the network device may be configured with 0, 1 or 2 non-periodic SRS resource sets, and may be configured with 2 SRS resources in total, each SRS resource including 4 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

For 8T=8R, 0, 1, 2 or 3 non-periodic SRS resource sets may be configured, and a total of 1 SRS resource may be configured, each SRS resource including 8 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource group IDs.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is less than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

d. Grouping of SRS resources

For at least one SRS resource set configured by the network, the group to which each SRS resource in all SRS resources of the at least one SRS resource set belongs can be determined by network configuration, protocol definition, preconfiguration, or according to certain rules. This embodiment is described below in various ways.

Method 1:

In "method 1", this embodiment can group all SRS resources in each SRS resource set in the at least one SRS resource set according to the number of resource groups that need to be divided.

For example, when all SRS resources in each SRS resource set need to be divided into two resource groups, the first half of the SRS resources in each SRS resource set can be divided into one resource group, and the second half of the SRS resources can be divided into another resource group, which is easy to implement.

Taking 2T8R as an example, for 2T8R, the network device can be configured with 2 semi-continuous SRS resource sets, each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports; when 2T8R is split into two 1T4Rs, the first 2 SRS resources and the last 2 SRS resources in each SRS resource set correspond to different SRS resource groups, and each corresponds to one 1T4R.

For another example, when all SRS resources in each SRS resource set need to be divided into three resource groups, the first one-third of the SRS resources in each SRS resource set can be divided into the first resource group, the middle one-third of the SRS resources can be divided into the second resource group, and the last one-third of the SRS resources can be divided into the third resource group, which is easy to implement.

Method 2:

It should be noted that the SRS resource may have a unique ID or index, the ID may be referred to as an "SRS resource ID", the index may be referred to as an "SRS resource index", and the SRS resource ID/SRS resource index may be used to identify the SRS resource. The SRS resource ID/SRS resource index may be configured by the network. The following embodiment is described using the "SRS resource ID" as an example, and the "SRS resource ID" may be replaced with the "SRS resource index" to implement the same technical solution, which will not be described in detail.

In "Method 2", this embodiment can sort all SRS resources in each SRS resource set in the at least one SRS resource set according to the order of SRS resource IDs in the same SRS resource set, and group the sorted SRS resources according to the number of resource groups that need to be divided.

The sorting is performed according to the order of the SRS resource IDs in the same SRS resource set, and may be performed in an ascending order or a descending order according to the order of the SRS resource IDs in the same SRS resource set.

In this way, SRS resources with adjacent SRS resource IDs can be divided into the same group as much as possible through sorting, which is easy to implement.

For example, when the sorted SRS resources in a certain SRS resource set need to be divided into two resource groups, the first half of the sorted SRS resources can be divided into one resource group, and the second half of the SRS resources can be divided into another resource group. In this way, the SRS resources with larger SRS resource IDs are grouped together and correspond to the same terminal device receiving antenna port group/antenna panel/sub-receiver, while the SRS resources with smaller SRS resource IDs are grouped together and correspond to the same terminal device receiving antenna port group/antenna panel/sub-receiver, which is easy to implement.

For another example, when the sorted SRS resources in a certain SRS resource set need to be divided into three resource groups, the first one-third of the SRS resources in the sorted SRS resources can be divided into the first resource group, the middle one-third of the SRS resources can be divided into the second resource group, and the last one-third of the SRS resources can be divided into the third resource group. In this way, SRS resource sets with adjacent SRS resource IDs are divided into the same group as much as possible, which is easy to implement.

Method 3:

In "method 3", this embodiment may group all SRS resources in each SRS resource set in the at least one SRS resource set according to the parity of the SRS resource ID.

In this way, SRS resources with odd-numbered SRS resource IDs are a group and correspond to one terminal device receiving antenna port group/antenna panel/sub-receiver, while SRS resources with even-numbered SRS resource IDs are another group and correspond to another terminal device receiving antenna port group/antenna panel/sub-receiver, which makes it easy to implement.

Taking 4T8R as an example, for 2T8R, the network device can configure 2 non-periodic SRS resource sets; when 4T8R is split into two 2T4Rs, all SRS resources in each SRS resource set correspond to different SRS resource groups according to parity, and each corresponds to one 2T4R.

Method 4:

In "Method 4", this embodiment can calculate the modulus of the SRS resource IDs of all SRS resources in each SRS resource set in the at least one SRS resource set and the number of resource groups to be divided, and divide the SRS resources with the same remainder into the same group.

For example, if the number of resource groups to be divided is 2, (SRS resource ID) mod 2 == 0 belongs to one group, and (SRS resource ID) mod 2 == 1 belongs to another group. Similarly, grouping is performed according to the odd or even number of the SRS resource ID.

For another example, taking the number of resource groups that need to be divided as 3, (SRS resource ID) mod 3 == 0 belongs to one group, (SRS resource ID) mod 3 == 1 belongs to one group, and (SRS resource ID) mod 3 == 2 belongs to one group.

For another example, taking the number of resource groups that need to be divided as 4, (SRS resource ID) mod 4 == 0 belongs to one group, (SRS resource ID) mod 4 == 1 belongs to one group, (SRS resource ID) mod 4 == 2 belongs to one group, and (SRS resource ID) mod 4 == 3 belongs to one group.

Method 5:

In "method 5", this embodiment can group all SRS resources of the at least one SRS resource set according to the number of resource groups that need to be divided.

Method 6:

In "Method 6", this embodiment can sort all SRS resources of the at least one SRS resource set first according to the order of SRS resource set ID, and then according to the order of SRS resource ID within the same SRS resource set, and group the sorted SRS resources according to the number of resource groups that need to be divided.

Among them, the order of SRS resource set IDs can be from small to large or from large to small; the order of SRS resource IDs within the same SRS resource set can be from small to large or from large to small.

In this way, SRS resources with adjacent SRS resource set IDs and adjacent SRS resource IDs can be divided into the same group as much as possible through sorting, which is easy to implement.

Method 7:

In "Method 7", this embodiment may group all SRS resources of the at least one SRS resource set according to the parity of the SRS resource ID.

In this way, SRS resources with odd-numbered SRS resource IDs are a group and correspond to one terminal device receiving antenna port group/antenna panel/sub-receiver, while SRS resources with even-numbered SRS resource IDs are another group and correspond to another terminal device receiving antenna port group/antenna panel/sub-receiver, which makes it easy to implement.

Method 8:

In "Method 8", this embodiment may calculate the modulus of the SRS resource IDs of all SRS resources of the at least one SRS resource set and the number of resource groups to be divided, and divide the SRS resources with the same modulus into the same group.

For example, if the number of resource groups to be divided is 2, (SRS resource ID) mod 2 == 0 belongs to one group, and (SRS resource ID) mod 2 == 1 belongs to another group. Similarly, grouping is performed according to the odd or even number of the SRS resource ID.

For another example, taking the number of resource groups that need to be divided as 3, (SRS resource ID) mod 3 == 0 belongs to one group, (SRS resource ID) mod 3 == 1 belongs to one group, and (SRS resource ID) mod 3 == 2 belongs to one group.

For another example, taking the number of resource groups that need to be divided as 4, (SRS resource ID) mod 4 == 0 belongs to one group, (SRS resource ID) mod 4 == 1 belongs to one group, (SRS resource ID) mod 4 == 2 belongs to one group, and (SRS resource ID) mod 4 == 3 belongs to one group.

The following embodiment is explained by taking the example that each SRS resource set in the at least one SRS resource set includes M (M is a positive integer) SRS resources, or all SRS resources of the at least one SRS resource set include M SRS resources, each SRS resource set has the same time domain behavior (that is, all are periodic, semi-continuous or non-periodic), and the M SRS resources are divided into two groups.

The two groups are the first resource group and the second resource group, that is, at least one resource group corresponding to all SRS resources of the at least one SRS resource set includes the first resource group and the second resource group. Of course, this embodiment is not limited to two groups, and can also be more than two groups, which will not be described in detail.

In this way, the M SRS resources include a first SRS resource and a second SRS resource, the first SRS resource corresponds to the first resource group, and the second SRS resource corresponds to the second resource group.

Optionally, the first SRS resource includes the first or before The first half of the M SRS resources are divided into one resource group, and the second half of the M SRS resources are divided into another resource group, which is easy to implement.

Optionally, the SRS resource ID of each SRS resource in the first SRS resource is an odd number; the SRS resource ID of each SRS resource in the second SRS resource is an even number. In this way, the M SRS resources are grouped according to the odd or even number of the SRS resource ID, so that the SRS resources with odd SRS resource IDs are grouped together, and the SRS resources with even SRS resource IDs are grouped together, which is easy to implement.

Optionally, if each SRS resource set in the at least one SRS resource set includes M SRS resources, the M SRS resources are sorted in the order of the SRS resource IDs in the same SRS resource set. In this way, the SRS resources with adjacent SRS resource IDs in the M SRS resources can be divided into the same group as much as possible, so as to facilitate implementation.

Optionally, if all SRS resource sets of the at least one SRS resource set include M SRS resources, the M SRS resources are first sorted according to the order of the SRS resource set IDs, and then according to the order of the SRS resource IDs within the same SRS resource set. In this way, the SRS resources with adjacent SRS resource set IDs and adjacent SRS resource IDs among the M SRS resources can be divided into the same group as much as possible, so as to facilitate implementation.

[Solution 3]

a. Description

In "Scheme 3", this embodiment groups the SRS ports, so for all SRS ports of at least one SRS resource set configured by the network, each SRS port corresponds to a group. For ease of distinction, the "group" here is referred to as a "port group", and the port group has a unique ID or index, the ID can be called a "port group ID", the index can be called a "port group index", and the port group ID/port group index can be used to identify the group/port group to which the SRS port belongs. In the subsequent, the "port group" mentioned in this embodiment can be replaced/equal to/regarded as a "port group ID/port group index", and no specific restrictions are made on this. The following embodiment is explained using the "port group ID" as an example, and the "port group ID" can be replaced with the "port group index" to implement the same technical solution, which will not be repeated.

Optionally, the port group ID can be configured by the network. For example, the network device can explicitly configure the port group ID.

It should be noted that SRS ports with the same port group ID belong to the same group and correspond to the same terminal device receiving antenna port group/antenna panel/sub-receiver; SRS ports with different port group IDs belong to different groups and correspond to different terminal device receiving antenna port groups/antenna panels/sub-receivers.

In this way, when the network device obtains the downlink CSI based on all SRS ports in the same port group, the downlink CSI is the downlink CSI of the terminal device receiving antenna port group/antenna panel/sub-receiver corresponding to the port group, so that the downlink channel evaluation of the receiving antenna port group/antenna panel/sub-receiver can be performed based on the downlink CSI.

Optionally, each SRS port corresponds to a port group, which may be network configured, pre-configured, specified by a protocol, or determined according to a rule.

For example, taking network configuration as an example, the network device may send high-level signaling (such as MAC signaling or RRC signaling) or DCI or system information to the terminal device to configure each SRS port to correspond to a port group.

Optionally, all SRS ports of the at least one SRS resource set may correspond to at least one port group, and the port group corresponding to each SRS port is one of the at least one port group, so that the group to which each SRS port belongs can be known through the port group corresponding to each SRS port.

Among them, the at least one port group corresponds to at least one terminal device receiving antenna port group/antenna panel/sub-receiver. In this way, through the corresponding relationship, the network device can obtain the downlink CSI of the terminal device antenna port group/antenna panel/sub-receiver corresponding to the port group according to all SRS ports in a port group, ensuring the accuracy of reception and processing.

It should be noted that all SRS ports of the at least one SRS resource set correspond to at least one port group, which can be understood as all SRS ports of the at least one SRS resource set corresponding to one or more port groups.

b. All SRS ports of at least one SRS resource set correspond to a port group

All SRS ports of the at least one SRS resource set correspond to a port group, which can be understood as that all SRS ports of the at least one SRS resource set are in the same group.

At this time, it is equivalent to not needing to perform SRS grouping for all SRS ports of the at least one SRS resource set. The need for SRS grouping can be determined based on the sum of the number of receiving antennas of the terminal device/the sum of the number of SRS ports/the sum of the number of SRS resource sets being less than or equal to a preset value, or based on network configuration information.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS ports in the target SRS resource set is less than or equal to a preset value, then all SRS ports of the at least one SRS resource set correspond to one port group.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., all SRS ports of the periodic or semi-continuous SRS resource set configured by the network device correspond to one port group.

For 1T2R, the network device can be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets, each SRS resource set includes 2 SRS resources, each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

For 1T4R, the network device can be configured with 0 or 1 periodic or semi-continuous SRS resource sets, each SRS resource set includes 4 SRS resources, each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

For 2T4R, the network device can be configured with 0, 1 or 2 periodic or semi-continuous SRS resource sets, each SRS resource set includes 2 SRS resources, each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to the same port group.

For 1T=1R, 2T=2R or 4T=4R, at most two SRS resource sets can be configured, each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2 or 4; all SRS ports of all SRS resource sets correspond to the same port group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTy, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is equal to the value of y, then all SRS ports of the at least one SRS resource set correspond to one port group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS ports of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources of the at least one SRS resource set is less than or equal to a preset value, all SRS ports of the at least one SRS resource set correspond to one port group.

It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving days of the terminal device, the number of receiving days of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., all SRS ports of the non-periodic SRS resource set configured by the network device correspond to one port group.

For 1T2R, the network device may be configured with 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources may be configured, each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

For 1T4R, the network device can be configured with 0, 1, 2 or 4 non-periodic SRS resource sets, and a total of 4 SRS resources can be configured, each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

For 2T4R, the network device can be configured with 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured, each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to the same port group.

For 1T=1R, 2T=2R or 4T=4R, at most two SRS resource sets can be configured, each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2 or 4; all SRS ports of all SRS resource sets correspond to the same port group.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports in all SRS resource sets of the at least one SRS resource set is equal to the value of y, then all SRS ports of the at least one SRS resource set correspond to one port group.

c. All SRS ports of at least one SRS resource set correspond to multiple port groups

All SRS ports of the at least one SRS resource set correspond to multiple port groups, which can be understood as all SRS ports of the at least one SRS resource set are respectively in multiple groups.

At this time, it is equivalent to that SRS grouping is required for all SRS ports of the at least one SRS resource set. The need for SRS grouping can be determined based on the sum of the number of receiving antennas of the terminal device/the sum of the number of SRS ports/the sum of the number of SRS resource sets being greater than a preset value, or based on network configuration information.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS ports in each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., all SRS ports of the periodic or semi-continuous SRS resource set configured by the network device correspond to multiple port groups.

For 1T6R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 6 SRS resources, each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 1T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 8 SRS resources, each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 2T6R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 3 SRS resources, each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 2T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 4 SRS resources, each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 4T8R, the network device can be configured with 0, 1 or 2 semi-persistent SRS resource sets, each SRS resource set includes 2 SRS resources, each SRS resource includes 4 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 8T=8R, the network device can be configured with 0, 1, 2 or 3 semi-persistent SRS resource sets, each SRS resource set includes 1 SRS resource, each SRS resource includes 8 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port group IDs.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for periodic or semi-continuous SRS resource sets, the sum of the number of SRS ports of all SRS resources in each SRS resource set may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is greater than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS ports of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources of the at least one SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., all SRS ports of the non-periodic SRS resource set configured by the network device correspond to multiple port groups.

For 1T6R, the network device can be configured with 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 6 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 1T8R, the network device can be configured with 0, 2, 3 or 4 non-periodic SRS resource sets, and a total of 8 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 2T6R, the network device can be configured with 0, 1, 2 or 3 non-periodic SRS resource sets, and a total of 3 SRS resources can be configured, each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 2T8R, the network device can be configured with 0, 1, 2, 3 or 4 non-periodic SRS resource sets, and a total of 4 SRS resources can be configured, each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 4T8R, the network device can be configured with 0, 1 or 2 non-periodic SRS resource sets, and a total of 2 SRS resources can be configured, each SRS resource includes 4 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

For 8T=8R, 0, 1, 2 or 3 non-periodic SRS resource sets may be configured, and a total of 1 SRS resource may be configured, each SRS resource includes 8 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port group IDs.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, in combination with the content of "SRS Antenna Switching" above, for non-periodic SRS resource sets, the sum of the number of SRS ports of all SRS resources of all SRS resource sets may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is less than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

d. Grouping of SRS ports

For at least one SRS resource set configured by the network, the group to which each SRS port of all SRS ports of the at least one SRS resource set belongs can be determined by network configuration, protocol definition, preconfiguration, or according to certain rules. This embodiment is described below in various ways.

Method A:

In "method A", this embodiment may group the SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set according to the number of port groups that need to be divided.

For example, when the SRS ports of all SRS resources in each SRS resource set need to be divided into two port groups, the first half of the SRS ports of all SRS resources can be divided into one port group, and the second half of the SRS ports can be divided into another port group, which is easy to implement.

Method B:

It should be noted that the SRS port may have a unique ID or index, the ID may be referred to as an "SRS port ID", the index may be referred to as an "SRS port index", and the SRS port ID/SRS port index may be used to identify the SRS port. The SRS port ID/SRS port index may be configured by the network. The following embodiment is described using the "SRS port ID" as an example, and the "SRS port ID" may be replaced with the "SRS port index" to implement the same technical solution, which will not be described in detail.

In "Method B", this embodiment can sort the SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set first according to the order of SRS resource IDs in the same SRS resource set, and then according to the order of SRS port IDs in the same SRS resource, and group the sorted SRS ports according to the number of port groups that need to be divided.

Among them, the order of SRS resource IDs within the same SRS resource set can be an order from small to large or from large to small; the order of SRS port IDs within the same SRS resource can be an order from small to large or from large to small.

In this way, SRS ports with adjacent SRS resource IDs and adjacent SRS port IDs can be divided into the same group as much as possible through sorting, so that it is easy to implement.

Method C:

In "method C", this embodiment may group the SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set according to the odd or even number of the SRS port ID.

In this way, the SRS ports with odd-numbered SRS port IDs are a group and correspond to one terminal device receiving antenna port group/antenna panel/sub-receiver, while the SRS ports with even-numbered SRS port IDs are another group and correspond to another terminal device receiving antenna port group/antenna panel/sub-receiver, which makes it easy to implement.

Method D:

In "method D", this embodiment can calculate the modulus of the SRS port IDs of the SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set and the number of port groups to be divided, and divide the SRS ports with the same remainder into the same group.

For example, if the number of port groups to be divided is 2, (SRS port ID) mod 2 == 0 belongs to one group, and (SRS SRS port ID) mod 2 == 1 belongs to another group. Similarly, grouping is performed according to the odd or even number of the SRS resource ID.

For another example, taking the number of port groups to be divided as 3, (SRS port ID) mod 3 == 0 belongs to one group, (SRS port ID) mod 3 == 1 belongs to one group, and (SRS port ID) mod 3 == 2 belongs to one group.

For another example, taking the number of port groups to be divided as 4, (SRS port ID) mod 4 == 0 belongs to one group, (SRS port ID) mod 4 == 1 belongs to one group, (SRS port ID) mod 4 == 2 belongs to one group, and (SRS port ID) mod 4 == 3 belongs to one group.

Method E:

In "method E", this embodiment can group all SRS ports of each SRS resource in the at least one SRS resource set according to the number of port groups that need to be divided.

Method F:

In "method F", this embodiment can sort all SRS ports of each SRS resource in the at least one SRS resource set according to the order of SRS port IDs in the same SRS resource, and group the sorted SRS ports according to the number of port groups required to be divided.

The order of the SRS port IDs within the same SRS resource may be an order from small to large or from large to small.

In this way, the SRS ports with adjacent SRS port IDs can be divided into the same group as much as possible through sorting, so that it is easy to implement.

Method G:

In "method G", this embodiment may group all SRS ports of each SRS resource in the at least one SRS resource set according to the odd or even number of the SRS port ID.

In this way, the SRS ports with odd-numbered SRS port IDs are a group and correspond to one terminal device receiving antenna port group/antenna panel/sub-receiver, while the SRS resources with even-numbered SRS port IDs are another group and correspond to another terminal device receiving antenna port group/antenna panel/sub-receiver, which makes it easy to implement.

Method H:

In "method H", this embodiment may calculate the modulus of the SRS port IDs of all SRS ports of each SRS resource in the at least one SRS resource set and the number of port groups to be divided, and divide the SRS ports with the same modulus into the same group.

Method I:

In "method I", this embodiment can group the SRS ports of all SRS resources of the at least one SRS resource set according to the number of port groups that need to be divided.

Method J:

In "Method J", this embodiment can sort the SRS ports of all SRS resources of the at least one SRS resource set first according to the order of the SRS resource set ID, then according to the order of the SRS resource ID within the same SRS resource set, and finally according to the order of the SRS port ID within the same SRS resource, and group the sorted SRS ports according to the number of port groups that need to be divided.

Among them, the order of the SRS resource set ID can be an order from small to large or from large to small; the order of the SRS resource IDs within the same SRS resource set can be an order from small to large or from large to small; the order of the SRS port IDs within the same SRS resource can be an order from small to large or from large to small.

In this way, SRS ports having adjacent SRS resource set IDs, adjacent SRS resource IDs and adjacent SRS port IDs can be divided into the same group as much as possible through sorting, so that it is easy to implement.

Method K:

In "method K", this embodiment may group the SRS ports of all SRS resources of the at least one SRS resource set according to the odd or even number of the SRS port IDs.

In this way, the SRS ports with odd-numbered SRS port IDs are a group and correspond to one terminal device receiving antenna port group/antenna panel/sub-receiver, while the SRS resources with even-numbered SRS port IDs are another group and correspond to another terminal device receiving antenna port group/antenna panel/sub-receiver, which makes it easy to implement.

Method L:

In "method L", this embodiment may calculate the modulus of the SRS port IDs of the SRS ports of all SRS resources of the at least one SRS resource set and the number of port groups to be divided, and divide the SRS ports with the same modulus into the same group.

The following embodiment is described by taking as an example that all SRS resources in each SRS resource set in the at least one SRS resource set include X (X is a positive integer) SRS ports, or each SRS resource in the at least one SRS resource set includes X SRS ports, or all SRS resources in the at least one SRS resource set include X SRS ports, each SRS resource set has the same time domain behavior (i.e., all are periodic, semi-continuous or non-periodic), and the X SRS ports are divided into two groups.

The two groups are the first port group and the second port group, that is, at least one port group corresponding to all SRS ports of the at least one SRS resource set includes the first port group and the second port group. Of course, this embodiment is not limited to two groups, and can also be more than two groups, which will not be repeated.

In this way, the X SRS ports include a first SRS port and a second SRS port, the first SRS port corresponds to the first port group, and the second SRS port corresponds to the second port group.

Optionally, the first SRS port includes the first of the X SRS ports. or before The second SRS port includes the remaining SRS ports of the X SRS ports except the first SRS port. In this way, the first half of the SRS ports of the X SRS ports are divided into one port group, and the second half of the SRS ports are divided into another port group, which is easy to implement.

Optionally, the SRS port ID of each of the first SRS ports is an odd number; and the SRS port ID of each of the second SRS ports is an even number. In this way, the X SRS ports are grouped according to the odd or even number of the SRS port IDs, so that the SRS ports with odd SRS port IDs are grouped together, and the SRS ports with even SRS port IDs are grouped together, which is easy to implement.

Optionally, if all SRS resources in each SRS resource set in the at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource IDs in the same SRS resource set, and then according to the order of SRS port IDs in the same SRS resource. In this way, SRS ports with adjacent SRS resource IDs and adjacent SRS port IDs among the X SRS ports can be divided into the same group as much as possible, so that it is easy to implement.

Optionally, if each SRS resource in at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs in the same SRS resource. In this way, the SRS ports with adjacent SRS port IDs among the X SRS ports can be divided into the same group as much as possible, so as to facilitate implementation.

Optionally, if all SRS resources of at least one SRS resource set include X SRS ports, the X SRS ports are first sorted in the order of SRS resource set IDs, then in the order of SRS resource IDs within the same SRS resource set, and finally in the order of SRS port IDs within the same SRS resource. In this way, the SRS ports with adjacent SRS port set IDs, adjacent SRS port IDs, and adjacent SRS port IDs among the M SRS ports can be divided into the same group as much as possible, so as to facilitate implementation.

[Example description of a communication method]

In combination with the above content, the following takes the interaction between a network device and a terminal device as an example to introduce an example of a communication method in an embodiment of the present application. It should be noted that the network device can be a chip, a chip module or a communication module, etc., and the terminal device can be a chip, a chip module or a communication module, etc. In other words, the method is applied to a network device or a terminal device, and there is no specific limitation on this.

As shown in FIG3 , it is a flow chart of a communication method according to an embodiment of the present application, which specifically includes the following steps:

S310. The network device sends information for configuring at least one SRS resource set, where the at least one SRS resource set is used for antenna switching; each SRS resource set in the at least one SRS resource set corresponds to a set group; or, each SRS resource in all SRS resources in the at least one SRS resource set corresponds to a resource group; or, each SRS port in all SRS ports in the at least one SRS resource set corresponds to a port group.

Each SRS resource set in at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port.

Correspondingly, the terminal device obtains at least one SRS resource set.

It should be noted that the terminal device will receive information for configuring at least one SRS resource set, and acquire at least one SRS resource set according to the information.

It can be seen that this embodiment can group SRS by having each SRS resource set in at least one SRS resource set correspond to a set group, or each SRS resource in all SRS resources in at least one SRS resource set correspond to a resource group, or each SRS port in all SRS ports in at least one SRS resource set correspond to a port group, so as to adapt to SRS antenna switching under multiple sub-receivers through SRS grouping to ensure uplink transmission performance and reliability.

In combination with the above content, some possible implementation methods are described below. For other methods not described, please refer to the above content for details, and no further elaboration will be given.

Optionally, at least one SRS resource set corresponds to at least one set group;

The set group corresponding to each SRS resource set in the at least one SRS resource set is one of the at least one set group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to a set group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to one set group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then at least one SRS resource set corresponds to multiple set groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups.

If the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, at least one collection group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver.

Optionally, the at least one set group includes a first set group and a second set group;

The at least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or non-periodic, and N is a positive integer;

The N SRS resource sets include a first SRS resource set and a second SRS resource set. The first SRS resource set corresponds to a first set group, and the second SRS resource set corresponds to a second set group.

Optionally, the first SRS resource set includes the first or before SRS resource collection;

The second SRS resource set includes the remaining SRS resource sets among the N SRS resource sets except the first SRS resource set.

Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number;

The SRS resource set ID of each SRS resource set in the second SRS resource set is an even number.

Optionally, the N SRS resource sets are sorted in order of SRS resource set IDs.

Optionally, all SRS resources of at least one SRS resource set correspond to at least one resource group;

The resource group corresponding to each SRS resource in all SRS resources of at least one SRS resource set is one of the at least one resource group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, all SRS resources in at least one SRS resource set correspond to one resource group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, all SRS resources in at least one SRS resource set correspond to multiple resource groups.

Optionally, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, at least one resource group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

Optionally, the at least one resource group includes a first resource group and a second resource group;

Each SRS resource set in at least one SRS resource set includes M SRS resources, or all SRS resource sets in at least one SRS resource set include M SRS resources;

Each SRS resource set in the at least one SRS resource set is periodic, semi-persistent or aperiodic, and M is a positive integer;

The first SRS resource among the M SRS resources corresponds to the first resource group, and the second SRS resource corresponds to the second resource group.

Optionally, the first SRS resource includes the first or before SRS resources;

The second SRS resources include remaining SRS resources among the M SRS resources except the first SRS resources.

Optionally, the SRS resource ID of each SRS resource in the first SRS resource is an odd number;

The SRS resource ID of each SRS resource in the second SRS resources is an even number.

Optionally, if each SRS resource set in at least one SRS resource set includes M SRS resources, the M SRS resources are sorted according to the order of SRS resource IDs in the same SRS resource set; or,

If all SRS resource sets of at least one SRS resource set include M SRS resources, the M SRS resources are first sorted according to the order of SRS resource set IDs and then according to the order of SRS resource IDs within the same SRS resource set.

Optionally, all SRS ports of at least one SRS resource set correspond to at least one port group;

The port group corresponding to each SRS port among all SRS ports of at least one SRS resource set is one of the at least one port group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, all SRS ports of at least one SRS resource set correspond to one port group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, all SRS ports of at least one SRS resource set correspond to multiple port groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, at least one port group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

Optionally, the at least one port group includes a first port group and a second port group;

All SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports; or, each SRS resource in at least one SRS resource set includes X SRS ports; or, all SRS resources in at least one SRS resource set include X SRS ports;

Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or non-periodic, X is a positive integer,

A first SRS port among the X SRS ports corresponds to a first port group, and a second SRS port corresponds to a second port group.

Optional, first SRS port, for front or before SRS ports;

The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port.

Optionally, the SRS port ID of each SRS port in the first SRS port is an odd number;

The SRS port ID of each of the second SRS ports is an even number.

Optionally, if all SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource IDs in the same SRS resource set, and then according to the order of SRS port IDs in the same SRS resource; or,

If each SRS resource in at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs in the same SRS resource; or,

If all SRS resources of at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource set IDs, then according to the order of SRS resource IDs within the same SRS resource set, and finally according to the order of SRS port IDs within the same SRS resource.

3. Example description of a functional unit of a communication device

The above mainly introduces the scheme of the embodiment of the present application from the perspective of the method side. It is understandable that in order to realize the above functions, the terminal device includes a hardware structure and/or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

The embodiment of the present application can divide the terminal device into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.

In the case of using integrated units, FIG4 is a block diagram of functional units of a communication device according to an embodiment of the present application, wherein the communication device 400 includes an acquisition unit 401 .

Optionally, the acquisition unit 401 may be a module unit for acquiring and processing signals, information, etc., and there is no specific limitation to this.

Optionally, the communication device 400 may further include a sending unit, wherein the sending unit may be a module unit for sending and processing signals, information, etc., and is not specifically limited thereto.

Optionally, the communication device 400 may further include a storage unit for storing computer program codes or instructions executed by the communication device 400. The storage unit may be a memory.

Optionally, the communication device 400 may be a chip or a chip module.

Optionally, the acquisition unit 401 may be integrated in a communication unit, wherein the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.

Optionally, the acquisition unit 401 may be integrated into the processing unit.

It should be noted that the processing unit may be a processor or a controller, for example, a baseband processor, a baseband chip, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processing unit may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

Optionally, the communication device 400 is used to execute any step performed by the terminal device/chip/chip module, etc. in the above method embodiment.

In specific implementation, the acquisition unit 401 is used to execute any step in the above method embodiment, and when executing actions such as sending, other units can be selectively called to complete corresponding operations.

An acquiring unit 401 is configured to acquire at least one SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in at least one SRS resource set corresponds to a set group; or,

Each SRS resource in all SRS resources of at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of at least one SRS resource set corresponds to a port group.

It can be seen that this embodiment can group SRS by having each SRS resource set in at least one SRS resource set correspond to a set group, or each SRS resource in all SRS resources in at least one SRS resource set correspond to a resource group, or each SRS port in all SRS ports in at least one SRS resource set correspond to a port group, so as to adapt to SRS antenna switching under multiple sub-receivers through SRS grouping to ensure uplink transmission performance and reliability.

It should be noted that the specific implementation of each operation in the embodiment shown in FIG. 4 can be found in the description of the method embodiment shown above, and will not be described in detail here.

Optionally, at least one SRS resource set corresponds to at least one set group;

The set group corresponding to each SRS resource set in the at least one SRS resource set is one of the at least one set group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to a set group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to one set group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then at least one SRS resource set corresponds to multiple set groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups.

If the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, at least one collection group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver.

Optionally, the at least one set group includes a first set group and a second set group;

The at least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or non-periodic, and N is a positive integer;

The N SRS resource sets include a first SRS resource set and a second SRS resource set. The first SRS resource set corresponds to a first set group, and the second SRS resource set corresponds to a second set group.

Optionally, the first SRS resource set includes the first or before SRS resource collection;

The second SRS resource set includes the remaining SRS resource sets among the N SRS resource sets except the first SRS resource set.

Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number;

The SRS resource set ID of each SRS resource set in the second SRS resource set is an even number.

Optionally, the N SRS resource sets are sorted in order of SRS resource set IDs.

Optionally, all SRS resources of at least one SRS resource set correspond to at least one resource group;

The resource group corresponding to each SRS resource in all SRS resources of at least one SRS resource set is one of the at least one resource group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, all SRS resources in at least one SRS resource set correspond to one resource group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, all SRS resources in at least one SRS resource set correspond to multiple resource groups.

Optionally, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, at least one resource group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

Optionally, the at least one resource group includes a first resource group and a second resource group;

Each SRS resource set in at least one SRS resource set includes M SRS resources, or all SRS resource sets in at least one SRS resource set include M SRS resources;

Each SRS resource set in the at least one SRS resource set is periodic, semi-persistent or aperiodic, and M is a positive integer;

The first SRS resource among the M SRS resources corresponds to the first resource group, and the second SRS resource corresponds to the second resource group.

Optionally, the first SRS resource includes the first or before SRS resources;

The second SRS resources include remaining SRS resources among the M SRS resources except the first SRS resources.

Optionally, the SRS resource ID of each SRS resource in the first SRS resource is an odd number;

The SRS resource ID of each SRS resource in the second SRS resources is an even number.

Optionally, if each SRS resource set in at least one SRS resource set includes M SRS resources, the M SRS resources are sorted according to the order of SRS resource IDs in the same SRS resource set; or,

If all SRS resource sets of at least one SRS resource set include M SRS resources, the M SRS resources are first sorted according to the order of SRS resource set IDs and then according to the order of SRS resource IDs within the same SRS resource set.

Optionally, all SRS ports of at least one SRS resource set correspond to at least one port group;

The port group corresponding to each SRS port among all SRS ports of at least one SRS resource set is one of the at least one port group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, all SRS ports of at least one SRS resource set correspond to one port group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, all SRS ports of at least one SRS resource set correspond to multiple port groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, at least one port group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

Optionally, the at least one port group includes a first port group and a second port group;

All SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports; or, each SRS resource in at least one SRS resource set includes X SRS ports; or, all SRS resources in at least one SRS resource set include X SRS ports;

Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or non-periodic, X is a positive integer,

A first SRS port among the X SRS ports corresponds to a first port group, and a second SRS port corresponds to a second port group.

Optional, first SRS port, for front or before SRS ports;

The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port.

Optionally, the SRS port ID of each SRS port in the first SRS port is an odd number;

The SRS port ID of each of the second SRS ports is an even number.

Optionally, if all SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource IDs in the same SRS resource set, and then according to the order of SRS port IDs in the same SRS resource; or,

If each SRS resource in at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs in the same SRS resource; or,

If all SRS resources of at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource set IDs, then according to the order of SRS resource IDs within the same SRS resource set, and finally according to the order of SRS port IDs within the same SRS resource.

4. Example description of functional units of another communication device

The above mainly introduces the scheme of the embodiment of the present application from the perspective of the method side. It is understandable that in order to realize the above functions, the network device includes a hardware structure and/or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

The embodiment of the present application can divide the network device into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.

In the case of using integrated units, FIG5 is a block diagram of functional units of another communication device according to an embodiment of the present application, wherein the communication device 500 includes a sending unit 501 .

Optionally, the sending unit 501 may be a module unit for sending and processing signals, information, etc., and there is no specific limitation on this.

Optionally, the communication device 500 may further include a receiving unit, wherein the receiving unit may be a module unit for receiving and processing signals, information, etc., and is not specifically limited thereto.

Optionally, the communication device 500 may further include a storage unit for storing computer program codes or instructions executed by the communication device 500. The storage unit may be a memory.

Optionally, the communication device 500 may be a chip or a chip module.

Optionally, the sending unit 501 may be integrated in a communication unit, wherein the communication unit may be a communication interface, a transceiver, a transceiver circuit, and the like.

Optionally, the sending unit 501 may be integrated into the processing unit.

It should be noted that the processing unit may be a processor or a controller, for example, a baseband processor, a baseband chip, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processing unit may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

Optionally, the communication device 500 is used to execute any step executed by the chip/chip module/network device, etc. in the above method embodiment.

In specific implementation, the sending unit 501 is used to execute any step in the above method embodiment, and when executing actions such as sending, other units can be selectively called to complete corresponding operations.

A sending unit 501 is configured to send information for configuring at least one SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in at least one SRS resource set corresponds to a set group; or,

Each SRS resource in all SRS resources of at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of at least one SRS resource set corresponds to a port group.

It can be seen that this embodiment can group SRS by having each SRS resource set in at least one SRS resource set correspond to a set group, or each SRS resource in all SRS resources in at least one SRS resource set correspond to a resource group, or each SRS port in all SRS ports in at least one SRS resource set correspond to a port group, so as to adapt to SRS antenna switching under multiple sub-receivers through SRS grouping to ensure uplink transmission performance and reliability.

It should be noted that the specific implementation of each operation in the embodiment shown in FIG. 5 can be found in the description of the method embodiment shown above, and will not be described in detail here.

Optionally, at least one SRS resource set corresponds to at least one set group;

The set group corresponding to each SRS resource set in the at least one SRS resource set is one of the at least one set group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to a set group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to one set group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then at least one SRS resource set corresponds to multiple set groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups.

If the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

Optionally, at least one collection group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver.

Optionally, the at least one set group includes a first set group and a second set group;

The at least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or non-periodic, and N is a positive integer;

The N SRS resource sets include a first SRS resource set and a second SRS resource set. The first SRS resource set corresponds to a first set group, and the second SRS resource set corresponds to a second set group.

Optionally, the first SRS resource set includes the first or before SRS resource collection;

The second SRS resource set includes the remaining SRS resource sets among the N SRS resource sets except the first SRS resource set.

Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number;

The SRS resource set ID of each SRS resource set in the second SRS resource set is an even number.

Optionally, the N SRS resource sets are sorted in order of SRS resource set IDs.

Optionally, all SRS resources of at least one SRS resource set correspond to at least one resource group;

The resource group corresponding to each SRS resource in all SRS resources of at least one SRS resource set is one of the at least one resource group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, all SRS resources in at least one SRS resource set correspond to one resource group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, all SRS resources in at least one SRS resource set correspond to multiple resource groups.

Optionally, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

Optionally, at least one resource group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

Optionally, the at least one resource group includes a first resource group and a second resource group;

Each SRS resource set in at least one SRS resource set includes M SRS resources, or all SRS resource sets in at least one SRS resource set include M SRS resources;

Each SRS resource set in the at least one SRS resource set is periodic, semi-persistent or aperiodic, and M is a positive integer;

The first SRS resource among the M SRS resources corresponds to the first resource group, and the second SRS resource corresponds to the second resource group.

Optionally, the first SRS resource includes the first or before SRS resources;

The second SRS resources include remaining SRS resources among the M SRS resources except the first SRS resources.

Optionally, the SRS resource ID of each SRS resource in the first SRS resource is an odd number;

The SRS resource ID of each SRS resource in the second SRS resources is an even number.

Optionally, if each SRS resource set in at least one SRS resource set includes M SRS resources, the M SRS resources are sorted according to the order of SRS resource IDs in the same SRS resource set; or,

If all SRS resource sets of at least one SRS resource set include M SRS resources, the M SRS resources are first sorted according to the order of SRS resource set IDs and then according to the order of SRS resource IDs within the same SRS resource set.

Optionally, all SRS ports of at least one SRS resource set correspond to at least one port group;

The port group corresponding to each SRS port among all SRS ports of at least one SRS resource set is one of the at least one port group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group; or,

If each SRS resource set in at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is less than or equal to a preset value, all SRS ports of at least one SRS resource set correspond to one port group.

Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, if each SRS resource set in at least one SRS resource set is non-periodic and the sum of the number of SRS ports of all SRS resources in at least one SRS resource set is greater than a preset value, all SRS ports of at least one SRS resource set correspond to multiple port groups.

Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

Optionally, at least one port group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

Optionally, the at least one port group includes a first port group and a second port group;

All SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports; or, each SRS resource in at least one SRS resource set includes X SRS ports; or, all SRS resources in at least one SRS resource set include X SRS ports;

Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or non-periodic, X is a positive integer,

A first SRS port among the X SRS ports corresponds to a first port group, and a second SRS port corresponds to a second port group.

Optional, first SRS port, for front or before SRS ports;

The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port.

Optionally, the SRS port ID of each SRS port in the first SRS port is an odd number;

The SRS port ID of each of the second SRS ports is an even number.

Optionally, if all SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource IDs in the same SRS resource set, and then according to the order of SRS port IDs in the same SRS resource; or,

If each SRS resource in at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs in the same SRS resource; or,

If all SRS resources of at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource set IDs, then according to the order of SRS resource IDs within the same SRS resource set, and finally according to the order of SRS port IDs within the same SRS resource.

5. Example of a terminal device

Please refer to FIG6 , which is a schematic diagram of the structure of a terminal device according to an embodiment of the present application. The terminal device 600 may include a processor 610 , a memory 620 , and a communication bus for connecting the processor 610 and the memory 620 .

Optionally, the memory 620 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or portable read-only memory (CD-ROM), and the memory 620 is used to store the program code executed by the terminal device 600 and the transmitted data.

Optionally, the terminal device 600 further includes a communication interface for receiving and sending data.

Optionally, the terminal device 600 may be the first terminal device mentioned above.

Optionally, the processor 610 may be one or more CPUs. When the processor 610 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

Optionally, the processor 610 may be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof.

In a specific implementation, the processor 610 in the terminal device 600 is used to execute the computer program or instruction 621 stored in the memory 620 to perform the following operations:

Acquire at least one SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in at least one SRS resource set corresponds to a set group; or,

Each SRS resource in all SRS resources of at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of at least one SRS resource set corresponds to a port group.

It can be seen that this embodiment can group SRS by having each SRS resource set in at least one SRS resource set correspond to a set group, or each SRS resource in all SRS resources in at least one SRS resource set correspond to a resource group, or each SRS port in all SRS ports in at least one SRS resource set correspond to a port group, so as to adapt to SRS antenna switching under multiple sub-receivers through SRS grouping to ensure uplink transmission performance and reliability.

It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above, and the terminal device 600 can be used to execute the above method embodiment of the present application, which will not be repeated here.

6. Example of a network device

Please refer to FIG7 , which is a schematic diagram of the structure of a network device provided in an embodiment of the present application, wherein the network device 700 includes a processor 710 , a memory 720 , and a communication bus for connecting the processor 710 and the memory 720 .

Optionally, the memory 720 includes but is not limited to RAM, ROM, EPROM or CD-ROM, and the memory 720 is used to store relevant instructions and data.

Optionally, the network device 700 also includes a communication interface for receiving and sending data.

Optionally, the processor 710 may be one or more CPUs. When the processor 710 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

Optionally, the processor 710 may be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof.

Optionally, the processor 710 in the network device 700 is used to execute the computer program or instruction 721 stored in the memory 720 to perform the following operations:

Sending information for configuring at least one SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

Each SRS resource set in at least one SRS resource set corresponds to a set group; or,

Each SRS resource in all SRS resources of at least one SRS resource set corresponds to a resource group; or,

Each SRS port among all SRS ports of at least one SRS resource set corresponds to a port group.

It can be seen that this embodiment can group SRS by having each SRS resource set in at least one SRS resource set correspond to a set group, or each SRS resource in all SRS resources in at least one SRS resource set correspond to a resource group, or each SRS port in all SRS ports in at least one SRS resource set correspond to a port group, so as to adapt to SRS antenna switching under multiple sub-receivers through SRS grouping to ensure uplink transmission performance and reliability.

It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above, and the network device 700 can be used to execute the above method embodiment of the present application, which will not be repeated here.

VII. Other related examples

Optionally, the above method embodiment can be applied to a terminal device or in a terminal device. That is to say, the execution subject of the above method embodiment can be a terminal device, a chip, a chip module or a module, etc., and there is no specific limitation on this.

Optionally, the above method embodiment can be applied to a network device or in a network device. That is to say, the execution subject of the above method embodiment can be a network device, a chip, a chip module or a module, etc., and there is no specific limitation on this.

An embodiment of the present application also provides a chip, including a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.

An embodiment of the present application also provides a chip module, including a transceiver component and a chip, the chip including a processor, a memory and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.

An embodiment of the present application also provides a computer-readable storage medium storing a computer program or instructions, which implements the steps described in the above method embodiment when executed.

The embodiment of the present application also provides a computer program product, including a computer program or instructions, which implement the steps described in the above method embodiment when executed.

An embodiment of the present application also provides a communication system, including the above-mentioned terminal device and the above-mentioned network device.

It should be noted that, for the above-mentioned various embodiments, for the sake of simple description, they are all expressed as a series of action combinations. Those skilled in the art should be aware that the present application is not limited by the described order of actions, because some steps in the embodiments of the present application can be performed in other orders or simultaneously. In addition, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions, steps, modules or units involved are not necessarily required by the embodiments of the present application.

In the above embodiments, the embodiments of the present application have different focuses on the description of each embodiment. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

The steps of the method or algorithm described in the embodiments of the present application can be implemented in hardware or by executing software instructions by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disks, mobile hard disks, read-only compact disks (CD-ROMs) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a terminal device or a management device. Of course, the processor and the storage medium can also exist in a terminal device or a management device as discrete components.

Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiments of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.

The modules/units included in the devices and products described in the above embodiments may be software modules/units or hardware modules/units, or may be partially software modules/units and partially hardware modules/units. For example, for the devices and products applied to or integrated in the chip, the modules/units included therein may all be implemented in the form of hardware such as circuits, or at least some of the modules/units may be implemented in the form of software programs, which run on the processor integrated inside the chip, and the remaining (if any) modules/units may be implemented in the form of hardware such as circuits; for the devices and products applied to or integrated in the chip module, the modules/units included therein may all be implemented in the form of hardware such as circuits, and different modules/units may be located in the same component (such as a chip, circuit module, etc.) or in different components of the chip module, or at least some of the modules/units may be implemented in the form of software programs. The software programs run on the processor integrated inside the chip, and the remaining (if any) modules/units may be implemented in the form of hardware such as circuits. It is implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules/units can be implemented in hardware such as circuits; for various devices and products applied to or integrated in the terminal equipment, the various modules/units contained therein can be implemented in hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal equipment, or, at least some modules/units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal equipment, and the remaining (if any) modules/units can be implemented in hardware such as circuits.

The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation method of the embodiments of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims (56)

A communication method, characterized by comprising: Acquire at least one sounding reference signal SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port; Each SRS resource set in the at least one SRS resource set corresponds to a set group; or, Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or, Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group. A communication method, characterized by comprising: Sending information for configuring at least one sounding reference signal SRS resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port; Each SRS resource set in the at least one SRS resource set corresponds to a set group; or, Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or, Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group. The method according to claim 1 or 2, characterized in that the at least one SRS resource set corresponds to at least one set group; The set group corresponding to each SRS resource set in the at least one SRS resource set is one of the at least one set groups. The method according to claim 3 is characterized in that if each of the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to a set group; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to a set group. The method according to claim 3 is characterized in that if each of the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups. The method according to any one of claims 2-5 is characterized in that the at least one collection group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver. The method according to any one of claims 3 to 6, characterized in that the at least one set group includes a first set group and a second set group; The at least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or non-periodic, and N is a positive integer; The N SRS resource sets include a first SRS resource set and a second SRS resource set, the first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group. The method according to claim 7, wherein the first SRS resource set includes the first or before SRS resource collection; The second SRS resource set includes the remaining SRS resource sets in the N SRS resource sets except the first SRS resource set. The method according to claim 7, characterized in that the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number; The SRS resource set ID of each SRS resource set in the second SRS resource set is an even number. The method according to any one of claims 7 to 9 is characterized in that the N SRS resource sets are sorted in the order of SRS resource set IDs. The method according to claim 1 or 2, characterized in that all SRS resources of the at least one SRS resource set correspond to at least one resource group; The resource group corresponding to each SRS resource in all SRS resources of the at least one SRS resource set is one of the at least one resource groups. The method according to claim 11 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of the at least one SRS resource set correspond to one resource group; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is less than or equal to a preset value, all SRS resources in the at least one SRS resource set correspond to one resource group. The method according to claim 11 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is greater than a preset value, then all SRS resources in the at least one SRS resource set correspond to multiple resource groups. The method according to any one of claims 11-13 is characterized in that the at least one resource group corresponds one-to-one with at least one terminal device antenna port group or antenna panel or sub-receiver. The method according to any one of claims 11 to 14, characterized in that the at least one resource group includes a first resource group and a second resource group; Each SRS resource set of the at least one SRS resource set includes M SRS resources, or all SRS resource sets of the at least one SRS resource set include M SRS resources; Each SRS resource set in the at least one SRS resource set is periodic, semi-persistent or non-periodic, and M is a positive integer; A first SRS resource among the M SRS resources corresponds to the first resource group, and a second SRS resource corresponds to the second resource group. The method according to claim 15, characterized in that the first SRS resource includes the first one of the M SRS resources. or before SRS resources; The second SRS resources include remaining SRS resources among the M SRS resources except the first SRS resources. The method according to claim 15, characterized in that the SRS resource ID of each SRS resource in the first SRS resource is an odd number; The SRS resource ID of each SRS resource in the second SRS resources is an even number. The method according to any one of claims 15 to 17, characterized in that if each SRS resource set in the at least one SRS resource set includes M SRS resources, the M SRS resources are sorted in the order of SRS resource IDs in the same SRS resource set; or, If all SRS resource sets of the at least one SRS resource set include M SRS resources, the M SRS resources are first sorted according to the order of SRS resource set IDs and then according to the order of SRS resource IDs within the same SRS resource set. The method according to claim 1 or 2, characterized in that all SRS ports of the at least one SRS resource set correspond to at least one port group; The port group corresponding to each SRS port among all SRS ports of the at least one SRS resource set is one of the at least one port group. The method according to claim 19 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS ports of the at least one SRS resource set correspond to one port group; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is less than or equal to a preset value, all SRS ports of the at least one SRS resource set correspond to one port group. The method according to claim 19 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is greater than a preset value, all SRS ports of the at least one SRS resource set correspond to multiple port groups. The method according to any one of claims 19-21 is characterized in that the at least one port group corresponds one-to-one with at least one terminal device antenna port group or antenna panel or sub-receiver. The method according to any one of claims 19 to 22, characterized in that the at least one port group includes a first port group and a second port group; All SRS resources in each SRS resource set in the at least one SRS resource set include X SRS ports; or, each SRS resource in the at least one SRS resource set includes X SRS ports; or, all SRS resources in the at least one SRS resource set include X SRS ports; Each SRS resource set in the at least one SRS resource set is periodic, semi-persistent or non-periodic, X is a positive integer, A first SRS port among the X SRS ports corresponds to the first port group, and a second SRS port corresponds to the second port group. The method according to claim 23, characterized in that the first SRS port is a front or before SRS ports; The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port. The method according to claim 23, characterized in that the SRS port ID of each SRS port in the first SRS port is an odd number; The SRS port ID of each of the second SRS ports is an even number. The method according to any one of claims 23 to 25 is characterized in that if all SRS resources in each SRS resource set in the at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource IDs in the same SRS resource set, and then according to the order of SRS port IDs in the same SRS resource; or, If each SRS resource in the at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of SRS port IDs in the same SRS resource; or, If all SRS resources of the at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource set IDs, then according to the order of SRS resource IDs within the same SRS resource set, and finally according to the order of SRS port IDs within the same SRS resource. A communication device, comprising: An acquisition unit, configured to acquire at least one sounding reference signal SRS resource set, wherein the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port; Each SRS resource set in the at least one SRS resource set corresponds to a set group; or, Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or, Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group. A communication device, comprising: a sending unit, configured to send information for configuring at least one sounding reference signal SRS resource set, wherein the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port; Each SRS resource set in the at least one SRS resource set corresponds to a set group; or, Each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or, Each SRS port among all SRS ports of the at least one SRS resource set corresponds to a port group. The apparatus according to claim 27 or 28, wherein the at least one SRS resource set corresponds to at least one set group; The set group corresponding to each SRS resource set in the at least one SRS resource set is one of the at least one set groups. The device according to claim 29 is characterized in that if each of the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to a set group; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to a set group. The device according to claim 29 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups. The device according to any one of claims 28-31 is characterized in that the at least one collection group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver. The device according to any one of claims 29 to 32, characterized in that the at least one set group includes a first set group and a second set group; The at least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or non-periodic, and N is a positive integer; The N SRS resource sets include a first SRS resource set and a second SRS resource set, the first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group. The apparatus according to claim 33, wherein the first SRS resource set comprises the first or before SRS resource collection; The second SRS resource set includes the remaining SRS resource sets in the N SRS resource sets except the first SRS resource set. The device according to claim 33, characterized in that the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number; The SRS resource set ID of each SRS resource set in the second SRS resource set is an even number. The device according to any one of claims 33-35 is characterized in that the N SRS resource sets are sorted in the order of SRS resource set IDs. The apparatus according to claim 27 or 28, characterized in that all SRS resources of the at least one SRS resource set correspond to at least one resource group; The resource group corresponding to each SRS resource in all SRS resources of the at least one SRS resource set is one of the at least one resource groups. The device according to claim 37 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of the at least one SRS resource set correspond to one resource group; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is less than or equal to a preset value, all SRS resources in the at least one SRS resource set correspond to one resource group. The device according to claim 37 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is greater than a preset value, then all SRS resources in the at least one SRS resource set correspond to multiple resource groups. The device according to any one of claims 37-39 is characterized in that the at least one resource group corresponds one-to-one with at least one terminal device antenna port group or antenna panel or sub-receiver. The device according to any one of claims 37 to 40, characterized in that the at least one resource group includes a first resource group and a second resource group; Each SRS resource set of the at least one SRS resource set includes M SRS resources, or all SRS resource sets of the at least one SRS resource set include M SRS resources; Each SRS resource set in the at least one SRS resource set is periodic, semi-persistent or non-periodic, and M is a positive integer; A first SRS resource among the M SRS resources corresponds to the first resource group, and a second SRS resource corresponds to the second resource group. The device according to claim 41, characterized in that the first SRS resource includes the first one of the M SRS resources. or before SRS resources; The second SRS resources include remaining SRS resources among the M SRS resources except the first SRS resources. The apparatus according to claim 41, wherein the SRS resource ID of each SRS resource in the first SRS resource is an odd number; The SRS resource ID of each SRS resource in the second SRS resources is an even number. The device according to any one of claims 41 to 43 is characterized in that if each SRS resource set in the at least one SRS resource set includes M SRS resources, the M SRS resources are sorted in the order of SRS resource IDs in the same SRS resource set; or, If all SRS resource sets of the at least one SRS resource set include M SRS resources, the M SRS resources are first sorted according to the order of SRS resource set IDs and then according to the order of SRS resource IDs within the same SRS resource set. The device according to claim 27 or 28, characterized in that all SRS ports of the at least one SRS resource set correspond to at least one port group; The port group corresponding to each SRS port among all SRS ports of the at least one SRS resource set is one of the at least one port group. The device according to claim 45 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, there is a target SRS resource set in the at least one SRS resource set, and the sum of the number of SRS ports of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS ports of the at least one SRS resource set correspond to one port group; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is less than or equal to a preset value, all SRS ports of the at least one SRS resource set correspond to one port group. The device according to claim 45 is characterized in that if each SRS resource set in the at least one SRS resource set is periodic or semi-continuous, and the sum of the number of SRS ports of all SRS resources in each SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups; or, If each SRS resource set in the at least one SRS resource set is non-periodic, and the sum of the number of SRS ports of all SRS resources in the at least one SRS resource set is greater than a preset value, all SRS ports of the at least one SRS resource set correspond to multiple port groups. The device according to any one of claims 45-47 is characterized in that the at least one port group corresponds one-to-one with at least one terminal device antenna port group or antenna panel or sub-receiver. The device according to any one of claims 45 to 48, characterized in that the at least one port group includes a first port group and a second port group; All SRS resources in each SRS resource set in the at least one SRS resource set include X SRS ports; or, each SRS resource in the at least one SRS resource set includes X SRS ports; or, all SRS resources in the at least one SRS resource set include X SRS ports; Each SRS resource set in the at least one SRS resource set is periodic, semi-persistent or non-periodic, X is a positive integer, A first SRS port among the X SRS ports corresponds to the first port group, and a second SRS port corresponds to the second port group. The device according to claim 49, characterized in that the first SRS port is a front or before SRS ports; The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port. The apparatus according to claim 49, wherein the SRS port ID of each of the first SRS ports is an odd number; The SRS port ID of each of the second SRS ports is an even number. The device according to any one of claims 49-51 is characterized in that if all SRS resources in each SRS resource set in the at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource IDs in the same SRS resource set, and then according to the order of SRS port IDs in the same SRS resource; or, If each SRS resource in the at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of SRS port IDs in the same SRS resource; or, If all SRS resources of the at least one SRS resource set include X SRS ports, the X SRS ports are first sorted according to the order of SRS resource set IDs, then according to the order of SRS resource IDs within the same SRS resource set, and finally according to the order of SRS port IDs within the same SRS resource. A terminal device comprises a processor, a memory and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps of the method described in any one of claims 1 and 3-16. A network device comprises a processor, a memory and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps of the method described in any one of claims 1, 2-16. A chip comprising a processor and a communication interface, characterized in that the processor executes the steps of the method described in any one of claims 1-26. A computer-readable storage medium, characterized in that it stores a computer program or instruction, and when the computer program or instruction is executed, the steps of the method described in any one of claims 1 to 26 are executed.