CN118265161A

CN118265161A - Communication method and communication device

Info

Publication number: CN118265161A
Application number: CN202211685284.3A
Authority: CN
Inventors: 李怡然; 余健; 许华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2024-06-28
Also published as: WO2024140323A1

Abstract

The application provides a communication method and a communication device. The method predefines or pre-configures a plurality of configuration sets, each configuration set in the plurality of configuration sets corresponds to a quantity value respectively, when the number of terminal devices in one device set is the quantity value, the configuration set corresponding to the quantity value can be used, and each configuration set is used for indicating the uplink scheduling parameter value of each terminal device in the corresponding device set. In this way, after the number of the terminal devices in the device set where the first terminal device is located is changed, the first terminal device can accurately acquire a configuration set which can be used by the device set where the first terminal device is located through the first information, and determine uplink scheduling parameters of the first terminal device based on the configuration set so as to send uplink data.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

For the uplink transmission procedure, the base station needs to indicate to the User Equipment (UE) to send uplink scheduling parameters of a Physical Uplink SHARED CHANNEL (PUSCH), for example, the base station indicates ID information of a Sounding REFERENCE SIGNAL (SRS) resource through a sounding reference signal resource indication (SRS resource indicator, SRI) field in downlink control information (downlink control information, DCI), and indicates precoding matrix index information through a transmission precoding indication (TRANSMITTED PRECODING MATRIX INDICATOR, TPMI) field in the DCI.

At present, the mapping relation between the SRI field and the TPMI field and the uplink scheduling parameters is a predefined way, that is, the UE and the base station both know the mapping relation tables corresponding to the SRI field and the TPMI field and the uplink scheduling parameters, and the UE can determine the value of the uplink scheduling parameters in the corresponding mapping relation tables according to the indicated index. However, in the scenario where multiple UEs perform aggregate transmission, some UEs may need to be unbinding with the UE group performing aggregate transmission, that is, may not continue to perform cooperative transmission, so that the number of UEs in the UE group is variable, and then the existing uplink scheduling parameter indication manner is not suitable for the scenario where multiple UEs perform aggregate transmission.

Disclosure of Invention

The application provides a communication method and a communication device, which can enable terminal equipment to flexibly and dynamically acquire uplink scheduling parameters after the number of the terminal equipment in an equipment set where the terminal equipment is located is changed.

In a first aspect, a communication method is provided, which may be performed by a first terminal device, or may also be performed by a chip or a circuit configured in the first terminal device, which is not limited by the present application.

The method may include: the method comprises the steps that a first terminal device obtains first information, the first information is used for indicating a first configuration set applicable to a first device set where the first terminal device is located, the first configuration set is one set of a plurality of configuration sets which are predefined or preconfigured, each configuration set corresponds to a quantity value respectively, the quantity value is the number of terminal devices included in the device set applicable to the corresponding configuration set, and each configuration set is used for indicating the uplink scheduling parameter value of each terminal device in the applicable device set; and the first terminal equipment sends uplink data according to the first configuration set.

In the above technical solution, after the number of terminal devices in the device set where the first terminal device is located is changed, the first terminal device may accurately obtain, through the first information, a configuration set that can be used by the device set where the first terminal device is currently located in a plurality of predefined or preconfigured configuration sets, and determine its own uplink scheduling parameter based on the configuration set to send uplink data. Compared with the indication scheme that the RRC reconfiguration is performed after the number of the terminal devices in the device set is changed each time, the method and the device can effectively reduce the time delay of switching the uplink scheduling parameters and transmitting the uplink data.

In certain implementations of the first aspect, the first terminal device obtains first information, including: the method comprises the steps that first terminal equipment receives first information from network equipment, wherein the first information is indexes corresponding to a first configuration set in a plurality of configuration sets; or, the first terminal device receives first information from the network device, the first information indicating the number of terminal devices in the first device set.

In certain implementations of the first aspect, the first terminal device obtains first information, including: the first terminal equipment receives second information from the second terminal equipment, the first terminal equipment and the second terminal equipment are contained in a second equipment set, and the second information indicates that the second terminal equipment needs to be unbinding with the second equipment set; the first terminal device determines a first device set, which is a new device set determined after updating the second device set based on the second information, and the first device set does not include the second terminal device.

It will be appreciated that the first terminal device may receive the second information from the plurality of second terminal devices.

For example, the second device set may be considered an aggregate UE group before handover, the first device set may be considered an aggregate UE group after handover, and the second terminal device may be considered a CUE that is no longer capable of assisting the SUE of the first device set. Then, the second information indicates that the second terminal device needs to unbind from the second device set, which can be understood that the second information indicates that the second terminal device cannot cooperatively transmit the data of the SUE in the second device set. That is, the SUE in the second device set determines, with the remaining other UEs, which of the aggregated UEs ultimately participating in scheduling (i.e., the UEs of the first device set) through side-uplink interactions, thereby determining a configuration set to use among a plurality of configuration sets based on the number of UEs in the first device set.

In some implementations of the first aspect, each configuration set includes N sets of parameter configuration sets, where the N sets of parameter configuration sets are parameter configuration sets corresponding to N uplink scheduling parameters, each set of parameter configuration sets includes at least one parameter mapping configuration, each parameter mapping configuration includes at least one set of mapping relationships, each set of mapping relationships includes a mapping index and a set of values, one mapping index indicates a set of values, one set of values indicates a value of an uplink scheduling parameter corresponding to each terminal device in the applicable device set, and N is a positive integer.

In certain implementations of the first aspect, the method further comprises: the first terminal equipment receives third information from the network equipment, wherein the third information comprises N mapping indexes, and the N mapping indexes comprise one mapping index in one parameter mapping configuration of each group of parameter configuration sets in the first configuration set; the first terminal device sends uplink data according to a first configuration set, including: the first terminal equipment determines the values of N uplink scheduling parameters of the first terminal equipment according to the third information and the first configuration set; and the first terminal equipment sends the uplink data according to the values of the N uplink scheduling parameters.

In certain implementations of the first aspect, the third information is information scrambled based on a group radio network temporary identity, G-RNTI, of the first set of devices, the method further comprising: the first terminal equipment receives fourth information from the network equipment, wherein the fourth information comprises G-RNTI of the first equipment set; the first terminal device receives third information from the network device, including: the first terminal device receives and descrambles third information from the network device according to the G-RNTI of the first device set.

In the above technical scheme, the G-RNTI may jointly indicate the information of the uplink scheduling parameters of all UEs in the first device set through a single DCI, so as to save the cost of the DCI.

In certain implementations of the first aspect, the method further comprises: the first terminal equipment receives fifth information from the network equipment, the fifth information indicates the first terminal equipment to periodically report first state information, and the first state information indicates whether the first terminal equipment needs to be unbinding with an equipment set where the first terminal equipment is located at the current moment; the first terminal device periodically transmits the first status information to the network device.

In certain implementations of the first aspect, the first state information further includes a transmission mode supported by the first terminal device, the transmission mode being a coherent joint transmission CJT mode and/or a noncoherent joint transmission NCJT mode.

In certain implementations of the first aspect, the method further comprises: the first terminal equipment receives sixth information from the network equipment, wherein the sixth information indicates that the transmission mode of the first equipment set is a CJT mode; the first terminal equipment sends first state information to the network equipment, the first state information indicates that the first terminal equipment does not need to be unbinding with the equipment set where the first terminal equipment is located at the current moment, and the supported transmission mode is NCJT mode; the first terminal device receives seventh information from the network device, the seventh information indicating that the transmission mode of the first device set is NCJT modes.

According to the technical scheme, the network equipment can instruct the equipment set to flexibly switch the transmission mode, so that the influence of the terminal equipment caused by hardware limitation or jump is reduced, and the continuity of uplink data transmission is ensured.

In certain implementations of the first aspect, the first terminal device sending uplink data according to the first configuration set includes: and the first terminal equipment cooperatively transmits uplink data which is the data of at least one terminal equipment in the first equipment set with other terminal equipment in the first equipment set according to the first configuration set.

In a second aspect, a communication method is provided. The method may be performed by the network device or may be performed by a chip or circuit configured in the network device, which is not limited by the present application.

The method may include: the network equipment determines that the second terminal equipment needs to be unbinding with the second equipment set;

The network equipment updates the second equipment set to obtain a first equipment set, wherein the first equipment set does not comprise second terminal equipment; the network device sends first information to the first terminal device, the first information is used for indicating a first configuration set applicable to a first device set where the first terminal device is located, the first configuration set is one set of a plurality of configuration sets predefined or preconfigured, each configuration set corresponds to a quantity value, the quantity value is the number of terminal devices included in the device set applicable to the corresponding configuration set, each configuration set is used for indicating the uplink scheduling parameter value of each terminal device in the applicable device set, and the first terminal device is contained in the first device set.

The advantages of the second aspect may be found in the description of the first aspect and are not repeated here.

In certain implementations of the second aspect, the first information is an index of the first configuration set in a plurality of configuration sets, or the first information indicates a number of terminal devices in the first device set.

In some implementations of the second aspect, each configuration set includes N sets of parameter configuration sets, where the N sets of parameter configuration sets are parameter configuration sets corresponding to N uplink scheduling parameters, each set of parameter configuration sets includes at least one parameter mapping configuration, each parameter mapping configuration includes at least one set of mapping relationships, each set of mapping relationships includes a mapping index and a set of values, one mapping index indicates a set of values, one set of values indicates a value of an uplink scheduling parameter corresponding to each terminal device in the applicable device set, and N is a positive integer.

In certain implementations of the second aspect, the method further comprises: the network device sends third information to the first terminal device, the third information including N mapping indexes including one of the mapping configurations of each set of parameter configuration sets in the first configuration set.

In certain implementations of the second aspect, the method further comprises: the network equipment sends fourth information to the first terminal equipment, wherein the fourth information comprises a group radio network temporary identifier G-RNTI of the first equipment set; the network device scrambles the third information according to the G-RNTI of the first device set.

In certain implementations of the second aspect, the network device determining that the second terminal device needs to unbind from the second device set includes: the network equipment receives second state information from the second terminal equipment, wherein the second state information indicates whether the second terminal equipment needs to be unbinding with the second equipment set at the current moment; the network device determines that the second terminal device needs to be unbinding from the second device set according to the second state information.

In certain implementations of the second aspect, the method further comprises: the network equipment sends fifth information to the first terminal equipment, the fifth information indicates the first terminal equipment to periodically report first state information, and the first state information indicates whether the first terminal equipment needs to be unbinding with an equipment set where the first terminal equipment is located at the current moment; the network device periodically receives first status information from the first terminal device.

In certain implementations of the second aspect, the first state information further includes a transmission mode supported by the first terminal device, the transmission mode including a coherent joint transmission cqt mode and/or a noncoherent joint transmission NCJT mode.

In certain implementations of the second aspect, the method further comprises: the network equipment sends sixth information to the first terminal equipment, wherein the sixth information indicates that the transmission mode of the first equipment set is a CJT mode; the network equipment receives first state information from the first terminal equipment, the first state information indicates that the first terminal equipment can cooperatively transmit data of the second terminal equipment at the current moment, and the supported transmission mode is NCJT modes; the network device sends seventh information to the first terminal device, the seventh information indicating that the transmission mode of the first device set is NCJT modes.

In certain implementations of the second aspect, the terminal devices in the first device set are capable of cooperatively transmitting uplink data based on the first configuration set, the uplink data being data of at least one terminal device in the first device set.

In a third aspect, a communication device is provided, the device being configured to perform the method provided in the first aspect. In particular, the apparatus may include means for performing the first aspect and any one of the possible implementations of the first aspect.

In a fourth aspect, a communication device is provided for performing the method provided in the second aspect above. In particular, the apparatus may comprise means for performing the second aspect and any one of the possible implementations of the second aspect.

In a fifth aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of the first aspect and any one of the possible implementations of the first aspect. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the apparatus is a first terminal device. When the apparatus is a first terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the apparatus is a chip configured in the first terminal device. When the apparatus is a chip configured in a first terminal device, the communication interface may be an input/output interface.

In another implementation, the device is a chip or a system-on-chip.

Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input/output interface may be an input/output circuit.

In a sixth aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of the second aspect and any one of the possible implementations of the second aspect. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the apparatus is a network device. When the apparatus is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the apparatus is a chip configured in a network device. When the apparatus is a chip configured in a network device, the communication interface may be an input/output interface.

In another implementation, the device is a chip or a system-on-chip.

In a seventh aspect, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by an apparatus, cause the apparatus to implement the method of the first aspect and any one of the possible implementations of the first aspect.

In an eighth aspect, there is provided a computer readable storage medium having stored thereon computer instructions which, when executed by an apparatus, cause the apparatus to implement the second aspect and the method in any one of the possible implementations of the second aspect.

In a ninth aspect, there is provided a computer program product comprising instructions, which, when executed by an apparatus, cause the apparatus to implement the method provided in the first aspect and any one of the possible implementations of the first aspect.

In a tenth aspect, there is provided a computer program product comprising instructions, which, when executed by an apparatus, cause the apparatus to implement the second aspect and the method provided in any one of the possible implementations of the second aspect.

An eleventh aspect provides a communication system comprising a first terminal device, a second terminal device and a network device as described above.

Drawings

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in embodiments of the present application.

Fig. 2 is a schematic diagram of several possible scenarios of an uplink UE aggregation handover.

Fig. 3 is a schematic flow chart of a communication method provided in an embodiment of the present application.

Fig. 4 is a schematic flow chart of a network device determining a first device set according to the present application.

Fig. 5 is a schematic flow chart of another network device determination of a first device set according to the present application.

Fig. 6 is a schematic diagram of one possible transmission configuration of status information proposed by the present application.

Fig. 7 is a schematic block diagram of a communication device 200 provided by an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device 300 according to an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application may be applied to various communication systems, for example, fifth generation (5th generation,5G), new Radio (NR), long term evolution (long term evolution, LTE), internet of things (internet of things, ioT), wireless fidelity (WiFi), third generation partnership project (3rd generation partnership project,3GPP) related wireless communication, or other wireless communication that may occur in the future, such as sixth generation mobile communication system, etc., which is not limited in this aspect of the present application.

The technical scheme provided by the application can also be applied to machine type communication (MACHINE TYPE communication, MTC), device-to-device (D2D) network, machine-to-machine (machine to machine, M2M) network, internet of things (internet of things, ioT) network or other networks. The IoT network may include, for example, an internet of vehicles. The communication modes in the internet of vehicles system are generally called as vehicle to other devices (V2X, X may represent anything), for example, the V2X may include: vehicle-to-vehicle (vehicle to vehicle, V2V) communication, vehicle-to-infrastructure (vehicle to infrastructure, V2I) communication, vehicle-to-pedestrian communication (vehicle to pedestrian, V2P) or vehicle-to-network (vehicle to network, V2N) communication, etc.

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in embodiments of the present application. As shown in fig. 1, the communication system 100 may include at least one network device, such as the network device 101 shown in fig. 1; the communication system 100 may also comprise at least one terminal device, such as the terminal devices 102 to 107 shown in fig. 1. Wherein the terminal devices 102 to 107 may be mobile or stationary. One or more of network device 101 and terminal devices 102-107 may each communicate over a wireless link. Each network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. For example, the network device may send configuration information to the terminal device, and the terminal device may send uplink data to the network device based on the configuration information; as another example, the network device may send downstream data to the terminal device. Thus, the network device 101 and the terminal devices 102 to 107 in fig. 1 constitute one communication system.

Alternatively, the terminal devices may communicate directly with each other. Direct communication between the terminal devices may be achieved, for example, using D2D technology or the like. As shown in the figure, communication may be directly performed between the terminal devices 105 and 106 and between the terminal devices 105 and 107 using D2D technology. Terminal device 106 and terminal device 107 may communicate with terminal device 105 separately or simultaneously.

Terminal devices 105 to 107 may also communicate with network device 101, respectively. For example, may communicate directly with network device 101, as terminal devices 105 and 106 in the figures may communicate directly with network device 101; or indirectly with the network device 101, as in the figure the terminal device 107 communicates with the network device 101 via the terminal device 105.

It should be appreciated that fig. 1 illustrates schematically one network device and a plurality of terminal devices, as well as communication links between the communication devices. Alternatively, the communication system 100 may include a plurality of network devices, and the coverage area of each network device may include other numbers of terminal devices, such as more or fewer terminal devices. The application is not limited in this regard.

Each of the above-described communication apparatuses, such as the network apparatus 101 and the terminal apparatuses 102 to 107 in fig. 1, may be configured with a plurality of antennas. The plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. In addition, each communication device may additionally include a transmitter chain and a receiver chain, each of which may include a plurality of components (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.) associated with the transmission and reception of signals, as will be appreciated by one skilled in the art. Thus, communication between the network device and the terminal device may be via multiple antenna technology.

In the embodiment of the application, the network device can be any device with a wireless receiving and transmitting function. The apparatus includes, but is not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (WIRELESS FIDELITY, wiFi) system, a wireless relay Node, a wireless backhaul Node, a transmission point (transmission point, TP), or a transmission reception point (transmission and reception point, TRP), etc., may also be 5G, e.g., NR, a gNB in a system, or a transmission point (TRP or TP), one or a group (including multiple antenna panels) of base stations in a 5G system, or may also be a network Node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a centralized unit (centralized unit, CU) and DUs. The gNB may also include an active antenna unit (ACTIVE ANTENNA units, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB, e.g. the CU is responsible for handling non-real time protocols and services, implementing radio resource control (radio resource control, RRC), packet data convergence layer protocol (PACKET DATA convergence protocol, PDCP) layer functions. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer, and Physical (PHY) layer. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may be eventually changed into or converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau. It is understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), or may be divided into network devices in a Core Network (CN), which the present application is not limited to.

The network device provides services for the cell, and the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources, or spectrum resources) allocated by the network device, where the cell may belong to a macro base station (e.g., macro eNB or macro gNB, etc.), or may belong to a base station corresponding to a small cell (SMALL CELL), where the small cell may include: urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

In the embodiment of the present application, the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment.

The terminal device may be a device providing voice/data connectivity to a user, e.g., a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals may be: a mobile phone (mobile phone), a tablet (pad), a computer with wireless transceiver function (such as a notebook, a palm computer, etc.), a mobile internet device (mobile INTERNET DEVICE, MID), a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in telemedicine (remote media), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (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 in smart city (SMART CITY), or a future evolution network (public network public land mobile network, etc.).

The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wearing and developing wearable devices by applying a wearable technology, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

The terminal device may also be a terminal device in an internet of things (internet of things, ioT) system. IoT is an important component of future information technology development, and its main technical feature is to connect an item with a network through a communication technology, so as to implement man-machine interconnection and an intelligent network for object interconnection. IoT technology may enable massive connectivity, deep coverage, and terminal power saving through, for example, narrowband (NB) technology. The terminal device may further include sensors such as an intelligent printer, a train detector, and a gas station, and the main functions include collecting data (part of the terminal device), receiving control information and downlink data of the network device, and transmitting electromagnetic waves to the network device to transmit uplink data.

To facilitate understanding of the embodiments of the present application, concepts and related processes involved in the present application will be described first.

1. Aggregate transmission: in uplink communication, a cell edge UE is generally limited by uplink transmission power, and the transmission rate is low, so that the high-rate service requirement, such as high-definition video backhaul service, cannot be met. By means of the aggregation transmission technology, the power of two or more UE can be aggregated together to perform data transmission, the power gain is obtained, and uplink transmission rate is improved. The core idea of UE aggregate transmission is that one or more UEs assist another or more UEs in transmitting traffic data, equivalent to borrowing the transmission power and antennas of other UEs.

2. Aggregate UE group: the user types in the UE aggregation scenario may include two types, i.e., a collaborative user (cooperation UE, CUE) and a service user (service UE, SUE), i.e., one or more CUEs may assist the SUE in transmitting the service data of the SUE, thereby acquiring a power gain and a multiplexing/diversity gain. It is to be appreciated that one or more of the CUEs and the SUEs herein can be considered an aggregate UE group, and the present application is not limited to the number of CUEs and CUEs in the aggregate UE group.

3. Transmission mode of aggregate transmission: including a non-coherent joint transmission mode (non-coherent joint transmission, NCJT), a coherent joint transmission mode (coherent joint transmission, cqt). Coherent transmission refers to coherent superposition of a plurality of signals, coherent superposition refers to homodromous superposition of two or more vector signals, strong coherence indicates strong signal power of the superposition of the two or more vectors, and weak coherence indicates weak signal power of the superposition of the two or more vectors.

In the communication system, the base station may estimate the uplink channel quality by measuring a Sounding REFERENCE SIGNAL (SRS) sent by the terminal device, and may also use the SRS to manage an uplink beam, which specifically includes beam training, beam switching, and so on. Based on 3GPP TS 38.331, at least one SRS resource (SRSresource) is included in each SRS resource set (SRS resource set), whose main functions include: UE beam management, codeBook (CB) based uplink, non-CodeBook (NCB) based uplink, and antenna switching, and the functionality of each SRS resource set can be differentiated by RRC signaling. The following will mainly describe the function of the SRS based on codebook uplink transmission.

(1) The base station instructs the UE to transmit a port set of a Physical Uplink Shared Channel (PUSCH) SHARED CHANNEL to the terminal device.

For uplink transmission based on a codebook, the terminal equipment transmits an SRS without precoding, and the base station measures the SRS to determine a precoding matrix for transmitting a PUSCH. The application (use) of the SRS resource set configured by the RRC signaling is a Codebook, the SRS resource set and the SRS resources corresponding to the SRS resource set are configured for the UE, the base station indicates the optimal SRSResourceID to the terminal equipment based on the SRS measurement, and the terminal equipment adopts the indicated precoding information corresponding to SRSResource ID for sending the PUSCH. Specifically, the base station indicates SRSresource ID through a sounding reference signal resource indication (SRS resource indicator, SRI) field carried in downlink control information (downlink control information, DCI), and the UE determines a port set of PUSCH transmission according to SRSresource ID.

Note that each SRS resource set corresponds to one SRI field indication. The mapping relation between the uplink SRI field and the SRS resource based on the codebook in the existing NR standard can be specifically described in 3gpp TS 38.212 section 7.3.1.1.

Exemplary, the present application lists the mapping relation tables of the SRI field and the SRS resource ID, in which the SRS resource set contains different SRS resource numbers and the maximum transmission layer number (maximum rank number) is 1, through tables 1 to 3. In table 1, the mapping relationship table corresponds to a case where the SRS resource set includes 2 SRS resources, and the SRI field of the DCI may indicate the port set for PUSCH transmission, that is, the SRS resource index (SRSresource ID), specifically, a bit information mapping index of 0 in table 1 indicates that the UE uses the SRS resource of SRSresource ID as 0 in the SRS resource set, and a bit information mapping index of 1 indicates that the SRS resource of SRSresource ID as 1 in the SRS resource set. Table 2 is a mapping relation table corresponding to the case where 3 SRS resources are included in the SRS resource set. Table 3 is a mapping relation table corresponding to the case where the SRS resource set includes 4 SRS resources. The specific meanings of tables 2 and 3 are not repeated here.

TABLE 1

SRI field (bit information mapping index)	SRS resource ID
		0	0
1	1

TABLE 2

SRI field (bit information mapping index)	SRS resource ID
		0	0
1	1
		2	2
3	Reservation of

TABLE 3 Table 3

SRI field (bit information mapping index)	SRS resource ID
		0	0
1	1
		2	2
3	3

(2) The base station indicates the precoding matrix to the terminal equipment.

For codebook-based uplink transmission, the base station indicates to the terminal to transmit precoding indication (TRANSMITTED PRECODING MATRIX INDICATOR, TPMI) information, which corresponds to 1 precoding matrix in the codebook set. The current protocol defines a codebook set for different numbers of antenna ports and number of transmission layers. The base station indicates precoding matrix indexes through the TPMI field carried in the DCI, and each 1 precoding matrix index corresponds to 1 precoding matrix in the codebook set. Based on 3GPP TS38.212 section 6.3.1.5, the protocol gives a mapping table of the TPMI and the precoding matrix index based on the codebook.

After the base station determines the TPMI according to the uplink channel measurement, the TPMI needs to be indicated before the terminal device sends the PUSCH, otherwise, the terminal device does not know which precoding matrix should be selected. The bit length of TPMI is related to the codebook configuration, the number of layers (rank) transmitted, and the number of antenna ports. For example, taking a codebook set with a maximum transmission layer number of 2 (a maximum Rank of 2) as an example, where the base station and the UE use 4 antenna ports, the TPMI field occupies 5 bits in total, and the present application enumerates a mapping relationship table of the TPMI field and the precoding matrix index through table 4, specifically, a bit information mapping index of 0 in table 4 indicates that the UE has a transmission layer number of 1 layer and the precoding matrix index used is 0; a mapping index of 1 indicates that the number of UE transmission layers is 1 and a precoding matrix index used is 1; a bit information mapping index of 4 indicates that the UE transmission layer number is 2 and the precoding matrix index used is 0, see section 7.3.1.1 of 3gpp TS 38.212 in detail.

TABLE 4 Table 4

In this way, after the terminal device determines uplink scheduling parameters such as the precoding matrix for uplink transmission and the PUSCH transmission port set, the terminal device can map the PUSCH to the corresponding antenna port through the precoding matrix for uplink transmission.

It can be seen that, based on the scheme of the existing protocol, the base station indicates the SRS resource ID information to the terminal device through the SRI field in the DCI, and the TPMI field indicates the precoding matrix index information used to the terminal device, where the mapping relationship between the SRI word and the TPMI field and the uplink scheduling parameter is a predefined manner, that is, the terminal device knows that the mapping relationship table corresponding to the mapping indexes indicated in the SRI and the TPMI field in the DCI, and can determine the value of the uplink scheduling parameter in the corresponding mapping relationship table according to the mapping index.

In the UE aggregate transmission scenario, the UE aggregate handover needs to be flexibly performed under the influence of multiple factors such as CUE selection, transmission mode of an aggregate UE group, and transmission service type. Several possible scenarios for uplink UE aggregate handover are given below in connection with fig. 2.

Scene one: for transmission of Burst Buffer (Burst Buffer) service, the number of aggregated UEs may be flexibly adjusted based on the traffic size of the transmission. As shown in fig. 2 (a), in the heavy-load scenario, the traffic to be transmitted is large, more cooperative UEs may be used for aggregate transmission, and as the traffic gradually decreases, the number of CUEs may be reduced, which is beneficial for UE energy saving.

Scene II: and adjusting or switching the service type transmitted by the UE based on the priority of the service to be transmitted. As shown in fig. 2 (b), the CUE, which is performing aggregate transmission, receives higher priority traffic, and needs to be quickly unbundled with the SUE to transmit high priority traffic.

Scene III: based on the capabilities of the CUE, the transmission mode of the aggregate transmission is adjusted. As shown in fig. 2 (c), when the aggregate UE group is in the cqt mode, a certain CUE cannot meet the requirement of coherent transmission due to factors such as hardware hopping, and needs to be switched to NCJT transmission, or the CUE and the aggregate UE group are unbinding, so as to ensure continuity and accuracy of service transmission.

It can be seen that, in the UE aggregation handover scenario, the number of UEs in the aggregate UE group may change before and after handover, and thus, the existing indication manner of the uplink scheduling parameter is not suitable for the UE aggregation transmission scenario.

In view of the above, the present application provides a communication method capable of effectively solving the above technical problems. The method according to the present application will be described in detail.

As shown in fig. 3, fig. 3 is a schematic flowchart of a communication method according to an embodiment of the present application. The method comprises the following steps.

S310, the first terminal equipment acquires first information.

The first information is used for indicating a first configuration set applicable to a first equipment set where the first terminal equipment is located, the first configuration set is one set of a plurality of predefined or preconfigured configuration sets, each configuration set corresponds to a quantity value, the quantity value is the number of terminal equipment included in the equipment set applicable to the corresponding configuration set, and each configuration set is used for indicating the value of an uplink scheduling parameter of each terminal equipment in the applicable equipment set.

By way of example, a set of devices in the present application may be understood as an aggregate UE group in an aggregate transmission scenario. The first terminal device may be a CUE in the UE group or a SUE in the UE group, which is not limited in the present application.

By way of example, the predefined plurality of configuration sets may be understood as a protocol predefined plurality of configuration sets.

By way of example, the preconfigured plurality of configuration sets may be understood as a plurality of configuration sets indicated by the network device for the first terminal device. For example, the network device may pre-configure the plurality of configuration sets for the first terminal device through RRC.

It should be noted that the network device and the first terminal device are both pre-defined and pre-configured with the plurality of configuration sets.

It should be understood that the number value is the number of terminal devices included in the device set to which the corresponding configuration set applies, that is, when the number of terminal devices in a certain device set is the number value, the configuration set corresponding to the number value can be used.

Optionally, each of the plurality of configuration sets includes N sets of parameter configuration sets, where the N sets of parameter configuration sets are parameter configuration sets corresponding to N uplink scheduling parameters, each of the N sets of parameter configuration sets includes at least one parameter mapping configuration, each parameter mapping configuration includes at least one mapping relation, each mapping relation includes a mapping index and a set of values, one mapping index indicates a set of values, one set of values indicates a value of an uplink scheduling parameter corresponding to each terminal device in the applicable device set, and N is a positive integer.

The N uplink scheduling parameters include, but are not limited to, the following parameters: port set for transmitting PUSCH, precoding matrix for transmitting PUSCH, power control (power control) information. Based on the above description, in the present application, a parameter configuration set corresponding to a port set for transmitting PUSCH may be referred to as an SRI parameter configuration set, and a parameter configuration set corresponding to a precoding matrix for transmitting PUSCH may be referred to as a TPMI parameter configuration set.

By way of example, a parameter mapping configuration may be understood as a mapping table, each mapping table comprising a plurality of sets of mapping relationships. For example, any one of tables 1 to 3 may be regarded as one map table, and each row of tables 1 to 3 may be interpreted as a set of maps.

A number of configuration sets are illustrated below. For example, the plurality of configuration sets includes 3 configuration sets, and the corresponding number of terminal devices is 2,3, and 4, where the configuration set with the number of 2 is the first configuration set, the configuration set with the number of 3 is the second configuration set, and the configuration set with the number of 4 is the third configuration set. The first configuration set, the second configuration set and the third configuration set comprise 2 groups of parameter configuration sets, the 2 groups of parameter configuration sets are SRI parameter configuration sets and TPMI parameter sets respectively, and the SRI parameter configuration sets and the TPMI parameter sets comprise at least one parameter mapping configuration respectively.

For ease of description, the description herein continues with the SRI parameter configuration set in the first configuration set and the second configuration set.

For example, the SRI parameter configuration set in the first configuration set includes 2 parameter mapping configurations, and possible specific implementation manners of the 2 parameter mapping configurations are shown in table 5 and table 6, respectively, where table 5 is a parameter mapping configuration used when the number of SRS in the SRS resource set of 2 terminal devices in the applicable device set is 2, and table 6 is a parameter mapping configuration used when the number of SRS in the SRS resource set of UE1 in 2 terminal devices in the applicable device set is 3 and the number of SRS in the SRS resource set of UE2 is 2. Each parameter mapping configuration in each behavior in table 5 and table 6 includes a set of mapping relationships, and one mapping index in each set of mapping relationships associates SRS resource ID set information of the applicable device set, that is, associates SRS resource IDs of 2 UEs with values. For example, mapping index 1 in table 5 indicates SRS resources of which SRS resource set SRSresource ID is 0 for UE1 and SRS resources of which SRS resource set SRSresource ID is 1 for UE 2. That is, UE1 performs uplink data transmission using precoding information corresponding to SRS resources of set SRSresource ID of SRS resources of UE1, and UE2 performs uplink data transmission using precoding information corresponding to SRS resources of set SRSresource ID of SRS resources of UE 2.

TABLE 5

TABLE 6

It should be appreciated that tables 5 and 6 are merely illustrative and that the set of SRI parameter configurations may include further parameter mapping configurations, as the application is not limited in this respect.

For example, the SRI parameter configuration set in the second configuration set includes 2 parameter mapping configurations, as shown in table 7 and table 8, respectively, where table 7 is a parameter mapping configuration used when the number of SRS in the SRS resource set of 3 terminal devices in the applicable device set is 2, and table 8 is a parameter mapping configuration used when the number of SRS in the SRS resource set of UE1 in 2 terminal devices in the applicable device set is 3, and the number of SRS in the SRS resource set of UE2 and UE3 is 2. Each parameter mapping configuration in each behavior in table 7 and table 8 includes a set of mapping relationships, and one mapping index in each set of mapping relationships associates SRS resource ID set information of the applicable device set, that is, associates SRS resource IDs of 3 UEs with values. For example, mapping index 1 in table 7 indicates SRS resources of 0 in SRS resource set SRSresource ID for UE1, SRS resources of 0 in SRS resource set SRSresource ID for UE2, and SRS resources of 1 in SRS resource set SRSresource ID for UE 3. That is, UE1, UE2, and UE3 perform uplink data transmission using precoding information corresponding to SRS resources of which resource set SRSresource ID is 0, and 1, respectively. See the description of table 5 for specific meanings of tables 7 and 8, and are not repeated here.

TABLE 7

TABLE 8

It should be appreciated that tables 7 and 8 are merely illustrative and that the set of SRI parameter configurations may include further parameter mapping configurations, as the application is not limited in this respect.

In the following, a specific implementation manner of predefining or preconfiguring a plurality of configuration sets is given by taking UE aggregate transmission scenario as an example. As shown in table 9, in this implementation, a plurality of AggregationUE-Mapping (i.e., one example of a configuration set) may be configured, where maxNrofAggregationUE is the maximum configurable number of UEs supporting aggregated transmission, each AggregationUE-Mapping corresponds to one aggregationUE-Mapping-Id and one aggregationUE _num (i.e., one example of a configuration set corresponding number value), each aggregationUE-Mapping-Id corresponds to one aggregationUE-SRI-List, aggregationUE-TPMI-List and aggregationUE-PowerControl-List (i.e., one List is one example of a set of parameter configuration sets), and at least one Mapping table (i.e., one example of parameter Mapping configuration) is included in aggregationUE-SRI-List, aggregationUE-TPMI-List and aggregationUE-PowerControl-List.

TABLE 9

For example, when aggregationUE _num=2, tables 5 and 6 may be included in aggregationUE-SRI-List; when aggregationUE _num=3, tables 7 and 8 may be included in aggregationUE-SRI-List.

Alternatively, aggregationUE _num may not be included in Table 9, so long as aggregationUE-Mapping-Id corresponds one-to-one with aggregationUE _num.

The predefined or preconfigured plurality of configuration sets are described in detail above, and the first information is described in detail below. For convenience of description, the present application will be described hereinafter by taking a device set as an example of an aggregated UE group in an aggregated transmission scenario. The following illustrates a specific implementation manner of the first terminal device to acquire the first information.

Implementation one

The first terminal device may specifically acquire the first information by receiving, by the first terminal device, the first information from the network device, where the first information is an identifier or index corresponding to the first configuration set in the multiple configuration sets.

For example, the first information may indicate aggregationUE-Mapping-Id in table 7, so that the first terminal device may determine AggregationUE-Mapping (i.e., the first configuration set) that needs to be used at the current time of its own from the plurality of AggregationUE-Mapping based on the first information.

Implementation II

The first terminal device may specifically acquire the first information, where the first terminal device receives the first information from the network device, and the first information indicates the number of terminal devices in the first device set. Several specific ways of indicating the first information are given below.

1) The first information may directly include the number of UEs in the first set of devices.

For example, the network device may indicate to the first terminal device the number of UEs included in the first set of devices in a bit state manner. For example, assuming that the aggregate UE group contains only one SUE and the number of CUEs that can assist in transmission is M, the number of bits K required for the bit status indication scheme satisfiesWherein,Representing a round-up, i.e., representing that at least one CUE is scheduled for aggregate transmissions; or alternativelyI.e. it means that there is no CUE scheduled for aggregate transmission only SUE transmission. For example, if the number of CUEs that can be cooperatively transmitted by the SUE periphery is 5, 3bit information may be used to indicate the number of UEs in the first device set currently scheduled, and one possible mapping relationship between the bit state information and the number of UEs in the bit state indication scheme is shown in table 10. It should be noted that the present application does not limit the number of SUEs and CUEs in the aggregate UE group.

Table 10

2) The first information may indicate IDs of all UEs included in the first device set, or the predefined or preconfigured UE ID set that may be transmitted in aggregate, i.e., ID information including SUEs and CUEs, the first information may indicate IDs of all UEs included in the first device set. The first terminal device adaptively selects a configuration set to be used from a plurality of configuration sets based on the number of UEs in the first device set.

For example, the network device may indicate the CUE ID included in the first device set to the first terminal device in a Bitmap (Bitmap) manner. For the bitmap indication manner, each bit in the bitmap corresponds to each CUE index in the aggregate UE group capable of cooperative transmission one by one, for example, the number of CUEs capable of assisting in SUE transmission is M, and then the bit number=m required by the bitmap indication manner, and each bit indicates whether the corresponding CUE can be scheduled. For example, the number of CUEs that can be cooperatively transmitted by the preconfigured or predefined SUE periphery is 5, the corresponding CUE ID set is {1,2,3,5,6}, a 5bit field may be used to indicate the scheduled UE situation, the possible mapping relationship between the bit indication information and the CUE IDs in the bit map indication scheme is shown in table 11, when the bit map indication field is 00011, it is indicated that 2 CUEs are scheduled for aggregate transmission, and UE IDs are 5 and 6; when the bitmap indication field is 10011, it means that 3 CUEs are scheduled for aggregate transmission, and ue ids are 1, 5, and 6.

TABLE 11

Bit map	Bit indication meaning description
		00000	Non-scheduled CUE (SUE transmission only)
00001	Scheduling 1 CUE, ueid=6
		00010	Scheduling 1 CUE, ueid=5
00011	Scheduling 2 CUE, ueid=5 and 6
		…	…
00111	3 CUEs are scheduled, ueid=3, 5 and 6
		…	…
10011	3 CUEs are scheduled, ueid=1, 5 and 6
		…	…
11111	Scheduling 5 CUEs, ueid=1, 2,3,5 and 6

3) The network device may indicate the CUE ID included in the first device set to the first terminal device in a bit state manner. For schemes in which bit states indicate CUE IDs, each bit state corresponds to a set of cooperatively transmittable CUEs. Assuming that the number of CUEs that can assist in transmission is M, the bit state indication scheme indicates that all possible CUE sets are neededOr (b)The cases of supporting transmission only of the SUE and not supporting transmission only of the SUE, respectively, wherein,Representing an upward rounding. When M is small, the CUE set may be indicated using this scheme. For example, the number of CUEs that can be cooperatively transmitted by the preconfigured or predefined SUE periphery is 2, the corresponding CUE ID set is {1,5}, the possible mapping relationship between the bit indication information and the CUE set under the bit map indication scheme is shown in table 12, when the bit status indication field is 01, it indicates that 1 CUE is scheduled for aggregation transmission, and the UEID is 1; when the bit state indication field is 10, 1 CUE is scheduled for aggregation transmission, and the UEID is 5; when the bitmap indication field is 11, it means that 2 CUEs are scheduled for aggregate transmission, and ue ids are 1 and 5.

Table 12

Bit state	Bit indication meaning description
		00	Non-scheduled CUE (SUE transmission only)
01	Scheduling 1 CUE, ueid=1
		10	Scheduling 1 CUE, ueid=5
11	Scheduling 2 CUE, ueid=1 and 5

For example, the first information in the first and second implementations may be carried in a media access control element (MEDIA ACCESS control control element, MAC CE) signaling or DCI signaling, which may be a field defined by the MAC CE signaling or DCI signaling, or may be a field newly defined in the foregoing signaling. It will be appreciated that the first information may also be carried in the newly defined signalling. The present application is not limited in this regard.

Implementation III

The first terminal device may specifically acquire the first information by the first terminal device receiving second information from the second terminal device, where the first terminal device and the second terminal device are included in the second device set, and the second information indicates that the second terminal device needs to unbind from the second device set; the first terminal equipment determines a first equipment set, wherein the first equipment set is a new equipment set after switching, which is determined after updating the second equipment set based on the second information, and the first equipment set does not comprise the second terminal equipment; the first terminal device determines first information based on the first device set, the first information being the number of terminal devices in the first device set.

It will be appreciated that the first terminal device may receive the second information from the plurality of second terminal devices. The second device set may be regarded as an aggregate UE group before handover, the first device set may be regarded as an aggregate UE group after handover, and the second terminal device may be regarded as a CUE that is no longer capable of assisting the SUE of the first device set. Then, the second information indicates that the second terminal device needs to unbind from the second device set, which can be understood that the second information indicates that the second terminal device cannot cooperatively transmit the data of the SUE in the second device set. That is, the SUE in the second device set determines which of the aggregated UEs that finally participated in the scheduling (i.e., the UEs that determine the first device set) are interacted with other CUEs through Sidelink (SL), thereby adaptively determining a configuration set to be used among a plurality of configuration sets based on the number of UEs in the first device set.

It should be noted that, the implementation manner is more suitable for a scenario in which the UE can actively acquire and report whether it can perform cooperative transmission, and the first device set does not include a new CUE outside the second device set, that is, a scenario in which there is no new CUE after aggregation and switching. The following examples are illustrative.

For example, the second device set includes 4 UEs for uplink aggregate transmission, where the corresponding UE ID is {1,3,4,5}, and the UE id=5 CUE (i.e. an example of the second terminal device) cannot continue the aggregate transmission due to a hardware problem or transmission of other higher priority services, which may send the second information to other UEs in the second device set through a physical uplink SHARED CHANNEL (PSSCH) to inform the UE that the UE cannot perform the cooperative transmission. Optionally, the CUE incapable of aggregate transmission may also send the second information to the network device through a physical uplink control channel (physical uplink control channel, PUCCH). Further, the UE in the second device set may determine that the UE with UE id=5 needs to be unbinding with the second device set, that is, update the aggregate UE group from updating the second device set to updating the first device set, where the UE id corresponding to the first device set is {1,3,4}, so that the terminal device in the first device set may determine a configuration set to be used in multiple configuration sets according to the number of UEs in the first device set being 3.

The above description is made in detail on a possible implementation manner of the first terminal device to obtain the first information, and it should be understood that, in the above implementation manner, the terminal device can only obtain the first information when the number of UEs in the device set changes, and the first implementation manner and the second implementation manner are determining that the first device set corresponds to the configuration set through the indication information of the network device, and the third implementation manner is performing information interaction through SL between UEs, so that the first device set corresponds to the configuration set is selected adaptively. Thus, after the first terminal device acquires the first information, the first configuration information can be determined according to the first information. After that, S220 can be performed.

It should be further noted that, before the network device sends the first information to the first terminal device in the first implementation manner and the second implementation manner, the network device also needs to redetermine the device set (i.e., the first device set) after the switching based on the switching condition of the UE in the device set (i.e., the second device set) before the switching, and further determines that the first information indicates the first configuration set to the terminal device according to the first device set. The possible implementation of the network device determination of the first device set is described below by way of example in connection with fig. 3 and 4.

Fig. 4 is a schematic flow chart of a network device determining a first device set according to the present application. The method comprises the following steps.

S410, the terminal device #1 transmits the status information #1 to the network device. Wherein the status information #1 indicates whether the terminal device #1 can cooperatively transmit at the current time. Correspondingly, the network device receives status information #1 from terminal device #1.

For example, terminal device #1 in this step is any CUE in the second device set. Possible implementations of the terminal device #1 sending the status information #1 to the network device are illustrated below.

Implementation one

The status information #1 is a 1-bit field added with uplink control information (uplink control information, UCI), which can be carried on PUSCH or PUCCH for transmission, and indicates whether the terminal device #1 can cooperatively transmit at the current time through the 1-bit information. One possible way of indication is shown in table 13.

TABLE 13

Bit state	Meaning of
		0	Cooperable transmission
1	Uncooperative transmission

Implementation II

The status information #1 may be indicated by multiplexing a regular buffer status report (regular buffer status report, BSR) field in UCI. Currently, the BSR is used to report the amount of data to be transmitted to the network device, as an input condition for the network device to perform uplink scheduling resource allocation. The reporting of the regular BSR is a reporting mechanism of a terminal device supported by the existing protocol, that is, when data of a logical channel with higher priority enters a transmission buffer queue of the UE, or when a serving cell of the UE changes, or when an uplink data buffer (buffer) of the UE is empty and new data arrives, the UE sends the regular BSR to the network device to trigger uplink scheduling. Similarly, for the UE aggregation scenario, if the terminal device #1 receives the service with the higher priority or the phenomena such as hardware jump occur, one possible scheme is that the terminal device #1 reports based on the trigger BSR, that is, the multiplexing conventional BSR field reports that the network device needs to perform aggregation handover (that is, indicates that the terminal device #1 cannot perform cooperative transmission any more at the current moment). For example, the regular BSR field may include buffer size information of a new high-priority service to be transmitted by the terminal device #1, and correspondingly, the network device may trigger a scheduling interrupt after receiving the BSR information, unbind the terminal device #1, determine a new device set (i.e., a first device set) after aggregation and handover, and perform resource allocation based on the buffer size information of the regular BSR sent by the terminal device # 1.

S420, the network device unbinds the terminal device which can not cooperatively transmit in the second device set based on the state information #1, and determines the first device set.

The network device may then indicate first information to the terminal devices in the first set of devices based on the determined first set of devices, i.e. a first set of configurations for which the first set of devices is applicable, by the first information. The first information is not described here in detail.

It should be understood that the method shown in fig. 4 may be regarded as that the unbinding CUE is required to actively report that it cannot perform the auxiliary transmission any more at the current moment, and triggers the network device to redetermine the new aggregate UE group and the uplink scheduling parameters. In another possible implementation, the network device may also adaptively perform the aggregated UE handover based on the size of the data amount to be currently transmitted, e.g., part of the CUE in the second device set may be unbinding when the data amount to be transmitted is small, and the new aggregated UE group (i.e., the first device set) is redetermined, which the present application is not limited to.

Fig. 5 is a schematic flow chart of another network device determination of a first device set according to the present application. The method comprises the following steps.

S510, the network device sends indication information #1 to terminal device #2, where indication information #1 indicates that terminal device #2 periodically reports status information #2, and status information #2 indicates whether terminal device #2 can cooperatively transmit at the current time, and terminal device #2 is any terminal device in the third device set. Correspondingly, the terminal device #2 receives the instruction information #1 from the network device.

Optionally, the third device set is part or all of the UEs in the second device set, or the third device set may also be a UE set including the CUEs in the second device set, i.e. the third device set may include other UEs with coordination capabilities besides the CUEs in the second device set. In this scenario, this step represents that each terminal device in the third device set periodically reports status information, respectively.

Optionally, the third device set includes only the SUE in the second device set. It should be appreciated that in this scenario, this step represents periodically reporting, by the SUE, the state information of the CUEs in the second set of devices. Specifically, the SUE may acquire current state information of the CUE through SL, and then periodically report whether the CUE incapable of cooperative transmission exists in the second device set of the network device, and if so, may also indicate the ue id incapable of cooperative transmission. For example, the CUE ID set may be predefined or configured based on the method shown in table 11, and the SUE may report CUEID that cannot be cooperatively transmitted to the network device in a Bitmap manner, where each bit in the Bitmap corresponds to a UE in the CUE ID set one to one. Assuming that the second device set includes 4 CUEs, the corresponding ue id set is {2,4,6,7}, and the SUE reports 4bit information 0011 to indicate that the CUEs with ue ids of 6 and 7 at the current time cannot continue aggregation transmission.

Optionally, the third set of devices is a CUE in the second set of devices. It should be appreciated that in this scenario, this step represents the CUE in the second device set periodically reporting its own status information to the network device. Specifically, the state information 0 and the state information 1 respectively indicate that the current CUE can cooperatively transmit and cannot cooperatively transmit, and the base station unbinds the UEs incapable of cooperatively transmitting through the state information reported by the CUE to redetermine a new aggregate UE group, namely the first device set. For example, assume that the second device set includes 4 CUEs, the corresponding UE ID sets are {2,4,6,7}, and the 4 CUEs report 1bit of state information respectively, where the state information reported by the CUEs with UE IDs 2 and 4 is 0, and the state information reported by the CUEs with UE IDs 6 and 7 is 1, which indicates that the CUEs with UE IDs 6 and 7 at the current time cannot continue aggregation transmission.

Optionally, the third device set is all or part of the CUEs in the second device set that have collaboration capabilities around the CUEs and the SUEs other than the CUEs in the second device set. The scheme is designed to take into consideration that when the network equipment re-determines the aggregation UE group, if the state information of other surrounding UE outside the current aggregation UE group can be timely obtained, namely whether the UE can perform cooperative transmission at the current moment, the scheduling strategy can be flexibly switched. Whether the CUEs around the SUE have the cooperative capability can be obtained in the capability reporting stage of the UE. For example, for selecting a part of UEs with cooperative capability in the third device set, the network device may select a UE with a larger RSRP to indicate to report status information based on the measured reference signal received power (REFERENCE SIGNAL RECEIVING power, RSRP) of all the UEs with cooperative capability around the SUE, which may save overhead compared with reporting status information of all the UEs with cooperative capability around the SUE.

For example, the indication information #1 may be carried in one or more of DCI, or MAC, or RRC signaling.

Optionally, the indication information #1 may include information such as a resource configuration, a transmission period, and a time offset reported by the state information #2, where the resource configuration indicates a time-frequency resource that the terminal device #2 may send the state information #2, the transmission period indicates a time of a transmission interval of the state information #2 twice, a unit may be a slot (slot), or a symbol, and the time offset may indicate a symbol offset of the symbol sent by the state information #2 on 1 slot, where the value range is 0-13. For example, as shown in fig. 6, the configured transmission period is 2 slots, the time offset is 2 symbols, which indicates that the state information #2 is transmitted in the 3 rd symbol corresponding to the slot, and the time difference between the two transmission intervals is 2 slots.

S520, the terminal device #2 periodically transmits the status information #2 to the network device. Correspondingly, the network device periodically receives status information #2 from terminal device #2.

A possible implementation of the periodic transmission of the status information #2 by the terminal device #2 to the network device is illustrated below.

Implementation one

The state information #2 is a 1-bit field newly added to the UCI, and indicates whether the terminal device #2 can cooperatively transmit at the current time through the 1-bit information. One possible way of indication is shown in table 13. The terminal device #2 periodically reports the status information #2 to the network device based on the resource configuration information indicated by the indication information #1 in S510, and parameters such as a transmission period and a time interval.

Implementation II

The status information #2 may be indicated by multiplexing a Scheduling Request (SR) field in UCI. Based on the existing protocol, the SR information indicates that the UE requests PUSCH resources from the network device when there is an uplink transmission requirement, and the UE carries the PUSCH resources for transmission on the PUCCH channel, and occupies 1bit number. For example, the CUEs within the aggregate UE group need only send scheduling request information when assisting the SUE in aggregate transmissions. Therefore, for the scene of UE aggregate transmission, the network device may configure SR resources for the SUE and the CUE in the second device set, where 1bit of the CUE multiplexing SR field in the second device set performs periodic reporting of the state information #2 on the corresponding resources, and the scheme of multiplexing the existing field may reduce reporting overhead of the terminal device. For example, the network device may multiplex the SR transmission configuration in the existing protocol, that is, the SR transmission period sr_ PERIODCITY and the SR time OFFSET n_offset in the period are configured by SR-configinex IE, or the network device may additionally configure the transmission period and the time OFFSET for the state information #2, which is not limited in this application.

Implementation III

The state information #2 may be indicated by multiplexing a regular BSR field. That is, the state information #2 may be sent to the base station together with the configuration of the periodic BSR in the existing protocol, specifically, the terminal device #2 sends the state information #2 based on the customizable periodicBSR-Timer IE set by the periodic BSR, when the Timer expires, or the network device may additionally configure a sending period and a time offset for the state information #2, which is not limited in this application.

And S530, the network device unbinds the terminal devices which cannot cooperatively transmit in the second device set based on the state information #2, and determines the first device set.

Optionally, the status information #2 may further indicate a transmission mode supported by the terminal device #2 at the current time, where the transmission mode includes a cqt mode and/or NCJT mode. For example, state information #2 is 2-bit information, and one possible indication is shown in table 14.

TABLE 14

Bit state	Meaning of
		00	Collaborative transmission, support NCJT and CJT transmission
01	Collaborative transmission, only NCJT transmission is supported
		10	Uncooperative transmission
11	Reservation of

Then, in this implementation manner, if the state information received by the network device indicates that the corresponding terminal device cannot cooperatively transmit, the terminal device #2 is unbinding, and the network device re-determines a new aggregate UE group; if the state information received by the network device indicates that the corresponding terminal device can cooperatively transmit, but does not support the network device as the currently configured aggregation transmission mode, the network device may unbind the corresponding terminal device or reconfigure the aggregation transmission mode. For example, in table 14, if the transmission mode currently configured for the second device set is the cqt mode, the network device receives that the activation status information of one CUE in the second device set includes 01, that is, indicates that the CUE can cooperatively transmit but can only transmit NCJT, and at this time, the network device may unbind the CUE or modify the transmission mode of the second device set to NCJT. The implementation mode is beneficial to the flexible switching of the transmission mode of the network equipment, reduces the influence of the terminal equipment caused by hardware limitation or jump, and ensures the continuity of uplink service transmission.

The process by which the network device determines the first device set, and thus the first information based on the first device set, is described in detail above in connection with fig. 4 and 5. The following describes the procedure after the terminal device acquires the first information.

S320, the first terminal device sends uplink data according to the first configuration set.

The uplink data is, for example, service data of the SUE in the first device set.

Optionally, before S320, the method further includes:

And S330, the network equipment sends third information to the first terminal equipment. Correspondingly, the first terminal device receives third information from the network device.

Wherein the third information comprises N mapping indexes, the N mapping indexes comprising one mapping index of one of the parameter mapping configurations of each group of parameter configuration sets in the first configuration set. Taking the first configuration set as one AggregationUE-Mapping in table 9 as an example, the AggregationUE-Mapping includes aggregationUE-SRI-List, aggregationUE-TPMI-List and aggregationUE-PowerControl-List, then the third information in this example indicates 3 Mapping indexes, which are one Mapping index in one Mapping table of aggregationUE-SRI-List, one Mapping index in one Mapping table of aggregationUE-TPMI-List, and one Mapping index in one Mapping table of aggregationUE-PowerControl-List, respectively.

Alternatively, the third information may be carried in MACCE or DCI. How to transmit the third information to the terminal device in the first device set is described below using the third information bearer as a DCI.

For example, after determining the first device set, the network device may need to send, to each terminal device in the first device set, one DCI carrying the third information.

For example, the network device may configure a group radio network temporary identifier (group radio network temporary identifier, G-RNTI) for the first device set, notify the G-RNTI to the terminal device in the first device set through the fourth information, and scramble the DCI carrying the third information according to the G-RNTI, send the DCI to the terminal device in the first device set through a multicast or broadcast manner, and correspondingly, the SUE and the CUE in the first device set may use the G-RNTI to receive and descramble the DCI, thereby implementing that a single DCI jointly indicates uplink scheduling information of the SUE and the CUE in the first device set, so as to save the cost of the DCI.

For example, in one possible scenario, if the first device set after switching does not include a CUE other than the second device set, the network device may further scramble the DCI carrying the third information using the G-RNTI of the second device set, if cue#1 in the second device set has been unbundled with the second device set, that is, the first device set after switching does not include the cue#1, and the cue#1 also has its own service to be transmitted, the network device may further instruct the DCI scrambled by the cell radio network temporary identifier (cellradio network temporary identifier, C-RNTI) of the cue#1 to take a value of an uplink scheduling parameter of the cue#1, and in this case, the situation that the cue#1 receives both the DCI scrambled by the G-RNTI and the DCI scrambled by the C-RNTI of the second device set may occur, so in this case, a rule may be specified to control uplink transmission of the cue#1, where one possible scheme is that, when the DCI scrambled by the cue#c-in the first device set is not received, indicates that uplink data is transmitted based on the G-RNTI; if the CUE in the first equipment set receives the DCI scrambled by the C-RNTI and the DCI scrambled by the G-RNTI at the same time, uplink data transmission is preferentially performed based on the indication of the DCI, namely, priority transmission of own service is indicated.

Then, in S320, the first terminal device sends uplink data according to the first configuration set, which may specifically include:

s3201, the first terminal equipment determines the values of N uplink scheduling parameters of the first terminal equipment according to the third information and the first configuration set.

S3202, the first terminal device sends uplink data based on the values of the N uplink scheduling parameters of the first terminal device.

It should be understood that, after the first terminal device receives the third information, it must also know to which UE in the first device set each value in the set of values indicated by each of the N mapping indexes in the third information corresponds. For example, the first device set includes 3 terminal devices, the first terminal device receives N mapping indexes, where one mapping index is mapping index 3 corresponding to table 7, and then the first terminal device needs to know which UE in the first device set each bit 011 in mapping index 3 corresponds to, so as to accurately determine its SRS resource.

Optionally, the network device and the first terminal device may read, by default, a set of values corresponding to the mapping index according to a first rule, that is, predefined association relationships between the UE in the first device set and the set of values indicated by the mapping index. For example, the first rule is that the first value in the set of values is the value of SUE, and the remaining values in the set of values are read according to the order in which the CUE ID increases or decreases. For example two, the first rule is to read the set of values in order of increasing or decreasing UE IDs of UEs in the first set of devices. For example, assuming that the UE ID in the first device set is {1,3,4}, the SRS resource ID parameter set indicated by the SRI field is {0, 1}, the UE may read the value of the SRS resource ID indicated by the SRI field based on the order in which the UE IDs are increased, that is, the SRS resource ID corresponding to the UE with the UE ID of 1 is 0, the SRS resource ID corresponding to the UE with the UE ID of 3 is 0, and the SRS resource ID corresponding to the UE with the UE ID of 4 is 1.

It should be noted that, when the first rule relates to the UE ID, the first terminal device must also know the ID of each UE in the first device set to correctly acquire the uplink scheduling parameter of the first terminal device. The present application is not particularly limited as to how the first terminal device obtains the IDs of other UEs in the first device set, and for example, the first terminal device may obtain the IDs in a corresponding manner with reference to table 11 and table 12.

Optionally, the network device may also send a correspondence between a set of values and the IDs of the UEs in the first device set to the first terminal device, where the first terminal device determines, based on the correspondence, a value corresponding to the first terminal device in the set of values, thereby determining a value of the uplink scheduling parameter of the first terminal device.

The scheme provides a specific implementation method of how to dynamically indicate the corresponding uplink scheduling to the terminal equipment in the equipment set when the number of the UE in the equipment set is changed. Compared with the scheme that the configuration set corresponding to the RRC reconfiguration is carried out on the terminal equipment after the number of the terminal equipment of the equipment set is changed, the configuration set which can be used by different UE number sets is predefined or preconfigured, so that the value of the uplink scheduling parameter of the terminal equipment in the equipment set is dynamically indicated after the number of the terminal equipment of the equipment set is changed.

It should be understood that the sequence numbers of the above processes do not mean the order of execution, and the execution order of the processes should be determined by the functions and internal logic of the processes, and should not be construed as limiting the implementation process of the embodiments of the present application.

It is also to be understood that in the various embodiments of the application, where no special description or logic conflict exists, the terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

It should also be understood that in some of the above embodiments, the devices in the existing network architecture are mainly described as examples, and it should be understood that the embodiments of the present application are not limited to specific forms of the devices. For example, devices that can achieve the same functions in the future are applicable to the embodiments of the present application.

It will be appreciated that in the foregoing embodiments of the methods and operations implemented by a device (e.g., a first terminal device, a second terminal device, a network device, etc. as described above) may also be implemented by a component (e.g., a chip or circuit) of the device.

The method provided by the embodiment of the application is described in detail above with reference to fig. 1 to 6. The above method is mainly described in terms of interaction between the terminal device and the network device. It will be appreciated that the terminal device and the network device, in order to implement the above-mentioned functions, comprise corresponding hardware structures and/or software modules for performing the respective functions.

Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The following describes in detail the communication device provided in the embodiment of the present application with reference to fig. 7 and 8. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not shown may be referred to the above method embodiments, and for the sake of brevity, some parts of the descriptions are omitted. The embodiment of the application can divide the functional modules of the terminal equipment or the network equipment according to the method example, for example, each functional module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. The following description will take an example of dividing each functional module into corresponding functions.

The method for transmitting data provided by the application is described in detail above, and the communication device provided by the application is described below. In a possible implementation manner, the apparatus is configured to implement steps or procedures corresponding to the receiving end device in the foregoing method embodiment. In another possible implementation manner, the apparatus is configured to implement steps or flows corresponding to the sending end device in the foregoing method embodiment.

Fig. 7 is a schematic block diagram of a communication device 200 provided by an embodiment of the present application. As shown in fig. 7, the apparatus 200 may include a communication unit 210 and a processing unit 220. The communication unit 210 may communicate with the outside, and the processing unit 220 is used for data processing. The communication unit 210 may also be referred to as a communication interface or transceiver unit.

In a possible design, the apparatus 200 may implement steps or flows performed by the first terminal device in the above method embodiment, where the processing unit 220 is configured to perform the operations related to the processing of the first terminal device in the above method embodiment, and the communication unit 210 is configured to perform the operations related to the sending of the first terminal device in the above method embodiment.

In yet another possible design, the apparatus 200 may implement steps or flows performed by a network device corresponding to the above method embodiments, where the communication unit 210 is configured to perform operations related to the reception by the network device in the above method embodiments, and the processing unit 220 is configured to perform operations related to the processing by the network device in the above method embodiments.

It should be understood that the apparatus 200 herein is embodied in the form of functional units. The term "unit" herein may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 200 may be specifically configured to be a first terminal device in the foregoing embodiment, and may be used to perform each flow and/or step corresponding to the first terminal device in the foregoing method embodiment, or the apparatus 200 may be specifically configured to be a network device in the foregoing embodiment, and may be configured to perform each flow and/or step corresponding to the network device in the foregoing method embodiment, which is not repeated herein.

The apparatus 200 of each of the above aspects has a function of implementing a corresponding step performed by the first terminal device in the above method, or the apparatus 200 of each of the above aspects has a function of implementing a corresponding step performed by the network device in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the communication units may be replaced by transceivers (e.g., a transmitting unit in the communication units may be replaced by a transmitter, a receiving unit in the communication units may be replaced by a receiver), and other units, such as processing units, etc., may be replaced by processors, to perform the transceiving operations and related processing operations, respectively, in the various method embodiments.

The communication unit may be a transceiver circuit (e.g., may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit. In an embodiment of the present application, the apparatus in fig. 7 may be the first terminal device or the network device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The communication unit can be an input/output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein.

Fig. 8 is a schematic block diagram of a communication device 300 according to an embodiment of the present application. The apparatus 300 includes a processor 310 and a transceiver 320. Wherein the processor 310 and the transceiver 320 communicate with each other through an internal connection path, the processor 310 is configured to execute instructions to control the transceiver 320 to transmit signals and/or receive signals.

Optionally, the apparatus 300 may further include a memory 330, where the memory 330 is in communication with the processor 310 and the transceiver 320 via an internal connection path. The memory 330 is used to store instructions and the processor 310 may execute the instructions stored in the memory 330. In a possible implementation manner, the apparatus 300 is configured to implement each flow and step corresponding to the first terminal device in the foregoing method embodiment. In another possible implementation manner, the apparatus 300 is configured to implement the respective flows and steps corresponding to the network device in the above method embodiment.

It should be understood that the apparatus 300 may be specifically the first terminal device or the network device in the foregoing embodiment, and may also be a chip or a chip system. Correspondingly, the transceiver 320 may be a transceiver circuit of the chip, which is not limited herein. Specifically, the apparatus 300 may be configured to perform each step and/or flow corresponding to the first terminal device or the network device in the above method embodiment. Alternatively, the memory 330 may include read-only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type. The processor 310 may be configured to execute instructions stored in a memory, and when the processor 310 executes the instructions stored in the memory, the processor 310 is configured to perform the steps and/or processes of the method embodiments described above corresponding to the first terminal device or the network device.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The processor in the embodiments of the present application may implement or execute the methods, steps and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory

It should be noted that when the processor is a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) may be integrated into the processor.

Furthermore, the present application also provides a computer readable storage medium, where computer instructions are stored, when the computer instructions run on a computer, to cause operations and/or flows performed by the first terminal device or the network device in the embodiments of the method of the present application to be performed.

The application also provides a computer program product comprising computer program code or instructions which, when run on a computer, cause operations and/or flows performed by a first terminal device or network device in method embodiments of the application to be performed.

In addition, the application also provides a chip, which comprises a processor. The memory for storing the computer program is provided separately from the chip and the processor is configured to execute the computer program stored in the memory such that the operations and/or processes performed by the first terminal device or the network device in any one of the method embodiments are performed.

Further, the chip may also include a communication interface. The communication interface may be an input/output interface, an interface circuit, or the like. Further, the chip may further include a memory.

In addition, the application also provides a communication system which comprises the first terminal equipment and the network equipment in the embodiment of the application.

It should also be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application. It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein. In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

It should be further understood that reference to "first," "second," etc. ordinal words of embodiments of the present application are used for distinguishing a plurality of objects, and are not used for limiting a size, a content, an order, a timing, a priority, a importance, etc. of the plurality of objects. For example, the first information and the second information do not represent differences in information amount size, content, priority, importance, or the like.

It should also be understood that, in the present application, "when …", "if" and "if" all refer to the corresponding processing that the network element will perform under some objective condition, and are not limited in time, nor do they require that the network element must have a judgment in its implementation act, nor are other limitations meant to be present.

It should also be understood that in the present application, "at least one" means one or more, and "a plurality" means two or more. "at least one item" or the like means one item or more, i.e., any combination of these items, including any combination of single item or plural items. For example, at least one (one) of a, b, or c, represents: a, b, c, a and b, a and c, b and c, or a and b and c.

It is also to be understood that items appearing in the present application that are similar to "include one or more of the following: the meaning of the expressions a, B, and C "generally means that the item may be any one of the following unless otherwise specified: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a, B and C; a and A; a, A and A; a, A and B; a, a and C, a, B and B; a, C and C; b and B, B and C, C and C; c, C and C, and other combinations of a, B and C. The above is an optional entry for the item exemplified by 3 elements a, B and C, when expressed as "the item includes at least one of the following: a, B, … …, and X ", i.e., when there are more elements in the expression, then the entry to which the item is applicable may also be obtained according to the rules described above.

It should also be understood that the term "and/or" is merely one association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. For example, A/B, means: a or B.

It should also be understood that in embodiments of the present application, "B corresponding to A" means that B is associated with A from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

The method comprises the steps that a first terminal device obtains first information, the first information is used for indicating a first configuration set applicable to a first device set where the first terminal device is located, the first configuration set is one set of a plurality of pre-defined or pre-configured configuration sets, each configuration set corresponds to a quantity value respectively, the quantity value is the number of terminal devices included in the device set applicable to the corresponding configuration set, and each configuration set is used for indicating the uplink scheduling parameter value of each terminal device in the applicable device set;

and the first terminal equipment sends uplink data according to the first configuration set.

2. The method of claim 1, wherein the first terminal device obtains first information, comprising:

The first terminal equipment receives the first information from the network equipment, wherein the first information is indexes corresponding to the first configuration set in the configuration sets;

Or alternatively, the first and second heat exchangers may be,

The first terminal device receives the first information from the network device, wherein the first information indicates the number of terminal devices in the first device set.

3. The method of claim 1, wherein the first terminal device obtains first information, comprising:

the first terminal equipment receives second information from second terminal equipment, the first terminal equipment and the second terminal equipment are contained in a second equipment set, and the second information indicates that the second terminal equipment needs to be unbinding with the second equipment set;

The first terminal device determines the first device set, the first device set is a new device set determined after updating the second device set based on the second information, and the first device set does not include the second terminal device.

4. A method according to any one of claims 1 to 3, wherein each configuration set includes N sets of parameter configuration sets, where the N sets of parameter configuration sets are parameter configuration sets corresponding to N uplink scheduling parameters, each set of parameter configuration sets includes at least one parameter mapping configuration, each parameter mapping configuration includes at least one mapping relationship, each mapping relationship includes a mapping index and a set of values, the one mapping index indicates the set of values, the set of values indicates a value of an uplink scheduling parameter corresponding to each terminal device in the applicable device set, and N is a positive integer.

5. The method according to claim 4, wherein the method further comprises:

The first terminal device receives third information from the network device, wherein the third information comprises N mapping indexes, and the N mapping indexes comprise one mapping index in one parameter mapping configuration of each group of parameter configuration sets in the first configuration set;

the first terminal device sends uplink data according to the first configuration set, including:

the first terminal equipment determines the values of the N uplink scheduling parameters of the first terminal equipment according to the third information and the first configuration set;

And the first terminal equipment sends the uplink data according to the values of the N uplink scheduling parameters.

6. The method of claim 5, wherein the third information is information scrambled based on a group radio network temporary identity, G-RNTI, of the first set of devices, the method further comprising:

the first terminal equipment receives fourth information from the network equipment, wherein the fourth information comprises G-RNTI of the first equipment set;

The first terminal device receiving third information from the network device, including:

The first terminal device receives and descrambles the third information from the network device according to the G-RNTI of the first device set.

7. The method according to any one of claims 1 to 6, further comprising:

The first terminal equipment receives fifth information from the network equipment, the fifth information indicates the first terminal equipment to periodically report first state information, and the first state information indicates whether the first terminal equipment needs to be unbinding with an equipment set where the first terminal equipment is located at the current moment;

The first terminal device periodically sends the first state information to the network device.

8. The method of claim 7, wherein the first status information further comprises a transmission mode supported by the first terminal device, the transmission mode being a coherent joint transmission cqt mode and/or a non-coherent joint transmission NCJT mode.

9. The method of claim 8, wherein the method further comprises:

The first terminal equipment receives sixth information from the network equipment, wherein the sixth information indicates that a transmission mode of the first equipment set is a CJT mode;

The first terminal equipment sends the first state information to the network equipment, the first state information indicates that the first terminal equipment does not need to be unbinding with an equipment set where the first terminal equipment is located at the current moment, and the supported transmission mode is NCJT mode;

The first terminal device receives seventh information from the network device, wherein the seventh information indicates that a transmission mode of the first device set is NCJT modes.

10. The method according to any one of claims 1 to 9, wherein the first terminal device sending uplink data according to the first configuration set, comprising:

And the first terminal equipment cooperatively transmits the uplink data with other terminal equipment in the first equipment set according to the first configuration set, wherein the uplink data is the data of at least one terminal equipment in the first equipment set.

11. A method of communication, comprising:

the network equipment determines that the second terminal equipment needs to be unbinding with the second equipment set;

the network equipment updates the second equipment set to obtain a first equipment set, wherein the first equipment set does not comprise the second terminal equipment;

The network device sends first information to a first terminal device, where the first information is used for indicating a first configuration set applicable to a first device set where the first terminal device is located, where the first configuration set is one set of a plurality of predefined or preconfigured configuration sets, each configuration set corresponds to a number value, where the number value is a number of terminal devices included in a device set applicable to the corresponding configuration set, and each configuration set is used for indicating an uplink scheduling parameter value of each terminal device in the applicable device set, and the first terminal device is included in the first device set.

12. The method of claim 11, wherein the first information is an index of the first configuration set in the plurality of configuration sets or the first information indicates a number of terminal devices in the first device set.

13. The method according to claim 11 or 12, wherein each configuration set includes N sets of parameter configuration sets, where the N sets of parameter configuration sets are parameter configuration sets corresponding to N uplink scheduling parameters, each set of parameter configuration sets includes at least one parameter mapping configuration, each parameter mapping configuration includes at least one set of mapping relationships, each set of mapping relationships includes a mapping index and a set of values, the one mapping index indicates the set of values, the set of values indicates a value of an uplink scheduling parameter corresponding to each terminal device in the applicable device set, and N is a positive integer.

14. The method of claim 13, wherein the method further comprises:

The network device sends third information to the first terminal device, where the third information includes N mapping indexes, and the N mapping indexes include one mapping index in one mapping configuration of each set of parameter configuration sets in the first configuration set.

15. The method of claim 14, wherein the method further comprises:

The network equipment sends fourth information to the first terminal equipment, wherein the fourth information comprises a group radio network temporary identifier G-RNTI of the first equipment set;

The network device scrambles the third information according to the G-RNTI of the first device set.

16. The method according to any of claims 11 to 15, wherein the network device determining that the second terminal device needs to unbind from the second set of devices comprises:

The network equipment receives second state information from the second terminal equipment, wherein the second state information indicates whether the second terminal equipment needs to be unbinding with the second equipment set at the current moment;

And the network equipment determines that the second terminal equipment needs to be unbinding with the second equipment set according to the second state information.

17. The method according to any one of claims 11 to 16, further comprising:

The network equipment sends fifth information to the first terminal equipment, wherein the fifth information indicates the first terminal equipment to periodically report first state information, and the first state information indicates whether the first terminal equipment needs to be unbinding with an equipment set where the first terminal equipment is located at the current moment;

The network device periodically receives the first status information from the first terminal device.

18. The method of claim 17, wherein the first status information further comprises a transmission mode supported by the first terminal device, the transmission mode comprising a coherent joint transmission cqt mode and/or a non-coherent joint transmission NCJT mode.

19. The method of claim 18, wherein the method further comprises:

the network device sends sixth information to the first terminal device, wherein the sixth information indicates that a transmission mode of the first device set is a CJT mode;

The network equipment receives first state information from the first terminal equipment, the first state information indicates that the first terminal equipment can cooperatively transmit data of the second terminal equipment at the current moment, and the supported transmission mode is NCJT mode;

The network device sends seventh information to the first terminal device, where the seventh information indicates that a transmission mode of the first device set is NCJT modes.

20. The method according to any of claims 11 to 19, wherein the terminal devices in the first set of devices are capable of cooperatively transmitting uplink data based on the first set of configurations, the uplink data being data of at least one terminal device in the first set of devices.

21. A communication device, comprising:

The communication unit is used for acquiring first information, wherein the first information is used for indicating a first configuration set applicable to a first equipment set where first terminal equipment is located, the first configuration set is one set of a plurality of configuration sets which are predefined or preconfigured, each configuration set corresponds to a quantity value respectively, the quantity value is the number of terminal equipment included in the equipment set applicable to the corresponding configuration set, and each configuration set is used for indicating the uplink scheduling parameter value of each terminal equipment in the applicable equipment set;

And the processing unit is used for sending uplink data according to the first configuration set.

22. The apparatus according to claim 21, wherein the communication unit is specifically configured to,

Receiving the first information from a network device, wherein the first information is an index corresponding to the first configuration set in the configuration sets;

Or alternatively, the first and second heat exchangers may be,

The first information from the network device is received, the first information indicating the number of terminal devices in the first set of devices.

23. The apparatus according to claim 21, wherein the communication unit is configured to receive second information from a second terminal device, the first terminal device and the second terminal device being included in a second device set, the second information indicating that the second terminal device needs to unbind from the second device set;

The processing unit is further configured to determine the first device set, where the first device set is a new device set determined after updating the second device set based on the second information, and the first device set does not include the second terminal device.

24. The apparatus according to any one of claims 21 to 23, wherein each configuration set includes N sets of parameter configuration sets, where the N sets of parameter configuration sets are parameter configuration sets corresponding to N uplink scheduling parameters, each set of parameter configuration sets includes at least one parameter mapping configuration, each parameter mapping configuration includes at least one mapping relationship, each mapping relationship includes a mapping index and a set of values, the one mapping index indicates the set of values, the set of values indicates a value of an uplink scheduling parameter corresponding to each terminal device in the applicable device set, and N is a positive integer.

25. The apparatus of claim 24, wherein the communication unit is further configured to receive third information from the network device, the third information comprising N mapping indexes including one of the parameter mapping configurations of each of the parameter configuration sets in the first configuration set;

The processing unit is in particular adapted to,

Determining the values of the N uplink scheduling parameters of the first terminal equipment according to the third information and the first configuration set;

and sending the uplink data according to the values of the N uplink scheduling parameters.

26. The apparatus of claim 25, wherein the third information is information scrambled based on a group radio network temporary identity, G-RNTI, of the first set of devices,

The communication unit is further configured to receive fourth information from the network device, where the fourth information includes a G-RNTI of the first device set;

The processing unit is specifically configured to receive and descramble the third information from the network device according to the G-RNTI of the first device set.

27. The device according to any one of claims 21 to 26, wherein,

The communication unit is further configured to receive fifth information from the network device, where the fifth information indicates that the first terminal device periodically reports first status information, and the first status information indicates whether the first terminal device needs to unbind from a device set where the first terminal device is located at a current moment;

the communication unit is further configured to periodically send the first status information to the network device.

28. The apparatus of claim 27, wherein the first status information further comprises a transmission mode supported by the first terminal device, the transmission mode being a coherent joint transmission cqt mode and/or a non-coherent joint transmission NCJT mode.

29. The apparatus of claim 28, wherein the device comprises a plurality of sensors,

The communication unit is further configured to receive sixth information from the network device, where the sixth information indicates that a transmission mode of the first device set is a cqt mode;

The communication unit is further configured to send the first status information to the network device, where the first status information indicates that the first terminal device does not need to unbind from a device set where the first terminal device is located at the current moment, and a supported transmission mode is NCJT modes;

The communication unit is further configured to receive seventh information from the network device, where the seventh information indicates that a transmission mode of the first device set is NCJT modes.

30. The apparatus according to any one of claims 21 to 29, wherein the communication unit is specifically configured to cooperatively transmit the uplink data with other terminal devices in the first device set according to the first configuration set, where the uplink data is data of at least one terminal device in the first device set.

31. A communication device, comprising:

The processing unit is used for determining that the second terminal equipment needs to be unbinding with the second equipment set;

The processing unit is further configured to update the second device set to obtain a first device set, where the first device set does not include the second terminal device;

The communication unit is configured to send first information to a first terminal device, where the first information is used to indicate a first configuration set applicable to a first device set where the first terminal device is located, where the first configuration set is one set of a plurality of predefined or preconfigured configuration sets, each configuration set corresponds to a number value, where the number value is a number of terminal devices included in a device set applicable to the corresponding configuration set, and each configuration set is used to indicate an uplink scheduling parameter value of each terminal device in the applicable device set, and the first terminal device is included in the first device set.

32. The apparatus of claim 31, wherein the first information is an index of the first configuration set in the plurality of configuration sets or the first information indicates a number of terminal devices in the first device set.

33. The apparatus of claim 31 or 32, wherein each configuration set includes N sets of parameter configuration sets, where the N sets of parameter configuration sets are parameter configuration sets corresponding to N uplink scheduling parameters, each set of parameter configuration sets includes at least one parameter mapping configuration, each parameter mapping configuration includes at least one set of mapping relationships, each set of mapping relationships includes a mapping index and a set of values, the one mapping index indicates the set of values, the set of values indicates a value of an uplink scheduling parameter corresponding to each terminal device in the applicable device set, and N is a positive integer.

34. The apparatus of claim 33, wherein the communication unit is further configured to send third information to the first terminal device, the third information comprising N mapping indexes including one of the mapping configurations of each of the parameter configuration sets in the first configuration set.

35. The apparatus of claim 34, wherein the apparatus further comprises:

The communication unit is further configured to send fourth information to the first terminal device, where the fourth information includes a group radio network temporary identifier G-RNTI of the first device set;

The processing unit is further configured to scramble the third information according to a G-RNTI of the first device set.

36. The device according to any one of claims 31 to 35, wherein,

The communication unit is further configured to receive second status information from the second terminal device, where the second status information indicates whether the second terminal device needs to unbind from the second device set at the current time;

The processing unit is specifically configured to determine, according to the second status information, that the second terminal device needs to be unbinding from the second device set.

37. The device according to any one of claims 31 to 36, wherein,

The communication unit is further configured to send fifth information to the first terminal device, where the fifth information indicates that the first terminal device periodically reports first status information, and the first status information indicates whether the first terminal device needs to unbind from a device set where the first terminal device is located at the current moment;

The communication unit is further configured to periodically receive the first status information from the first terminal device.

38. The apparatus of claim 37, wherein the first status information further comprises a transmission mode supported by the first terminal device, the transmission mode comprising a coherent joint transmission cqt mode and/or a non-coherent joint transmission NCJT mode.

39. The apparatus of claim 38, wherein the device comprises a plurality of sensors,

The communication unit is further configured to send sixth information to the first terminal device, where the sixth information indicates that a transmission mode of the first device set is a cqt mode;

The communication unit is further configured to receive first status information from the first terminal device, where the first status information indicates that the first terminal device is capable of cooperatively transmitting data of the second terminal device at a current moment, and a supported transmission mode is a NCJT mode;

the communication unit is further configured to send seventh information to the first terminal device, where the seventh information indicates that a transmission mode of the first device set is NCJT modes.

40. The apparatus according to any of claims 31 to 39, wherein terminal devices in the first set of devices are capable of cooperatively transmitting uplink data based on the first set of configurations, the uplink data being data of at least one terminal device in the first set of devices.

41. A communication device, comprising: a processor for executing computer instructions stored in a memory, causing the apparatus to perform the method of any one of claims 1 to 10, or causing the apparatus to perform the method of any one of claims 11 to 20.

42. A communication device comprising logic circuitry and an input/output interface, the logic circuitry to couple with the input/output interface through which data is transmitted to perform the method of any one of claims 1 to 10 or to perform the method of any one of claims 11 to 20.

43. A computer readable storage medium having stored thereon computer instructions which, when run on a computer, perform the method of any of claims 1 to 10 or the method of any of claims 11 to 20.