CN119156876A

CN119156876A - Wireless communication method and device, equipment and storage medium

Info

Publication number: CN119156876A
Application number: CN202280095877.6A
Authority: CN
Inventors: 张轶; 林亚男; 梁彬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2024-12-17
Also published as: WO2024065466A1

Abstract

The embodiment of the application provides a wireless communication method and equipment, wherein the method comprises the steps that terminal equipment receives at least one first downlink control information DCI sent by network equipment, wherein the first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, the bit number of hybrid automatic repeat request acknowledgement HARQ-ACK information corresponding to the first DCI in an HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one maximum codeword number comprises the maximum codeword number corresponding to each cell in the cells which can be scheduled by the first DCI.

Description

Wireless communication method and device, equipment and storage medium

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a wireless communication method, a device, equipment and a storage medium.

Background

In a mobile communication system, downlink control information (downlink control information, DCI) is carried in a physical downlink control channel (Physical Downlink Control Channel, PDCCH) sent by a network device, and the DCI can be used for scheduling or indicating uplink and downlink resource allocation, hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) information transmission, power control, and the like.

In the related art, the network device schedules transmission of a physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH) to the terminal device through DCI, and accordingly, the terminal device may perform HARQ feedback on a reception condition of the PDSCH scheduled by the network device.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, a wireless communication device, wireless communication equipment and a wireless communication storage medium.

The wireless communication method provided by the embodiment of the application comprises the following steps:

The method comprises the steps that terminal equipment receives at least one first Downlink Control Information (DCI) sent by network equipment, wherein the first DCI is used for scheduling X Physical Downlink Shared Channels (PDSCH), X is a positive integer greater than or equal to 1, the bit number of hybrid automatic repeat request acknowledgement (HARQ-ACK) information in a HARQ-ACK codebook corresponding to the first DCI is determined based on at least one of a first number and at least one maximum codeword number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one maximum codeword number comprises the maximum codeword number corresponding to each cell in cells which can be scheduled by the first DCI.

The network equipment sends at least one first Downlink Control Information (DCI) to the terminal equipment, wherein the first DCI is used for scheduling X Physical Downlink Shared Channels (PDSCH), X is a positive integer greater than or equal to 1, the bit number of the HARQ-ACK information in the HARQ-ACK codebook corresponding to the first DCI is determined based on at least one of a first number and at least one maximum code word number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one maximum code word number comprises the maximum code word number corresponding to each cell in the cells which can be scheduled by the first DCI.

The wireless communication device provided by the embodiment of the application comprises:

The first communication unit is configured to receive at least one first Downlink Control Information (DCI) sent by a network device, wherein the first DCI is used for scheduling X Physical Downlink Shared Channels (PDSCH), X is a positive integer greater than or equal to 1, and the bit number of hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the first DCI in an HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one maximum codeword number comprises the maximum codeword number corresponding to each cell in the cells which can be scheduled by the first DCI.

The system comprises a first communication unit, a second communication unit and at least one first communication unit, wherein the first communication unit is configured to send at least one first downlink control information DCI to a terminal device, the first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, the bit number of hybrid automatic repeat request acknowledgement HARQ-ACK information corresponding to the first DCI in a HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one maximum codeword number comprises the maximum codeword number corresponding to each cell in the cells which can be scheduled by the first DCI.

The terminal equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the wireless communication method of the terminal equipment.

The network equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the wireless communication method of the network equipment.

The chip provided by the embodiment of the application is used for realizing the wireless communication method.

The chip comprises a processor for calling and running a computer program from a memory, so that a device provided with the chip executes the wireless communication method.

The embodiment of the application provides a computer readable storage medium for storing a computer program, which causes a computer to execute the wireless communication method.

The computer program product provided by the embodiment of the application comprises computer program instructions, wherein the computer program instructions enable a computer to execute the wireless communication method.

The computer program provided by the embodiment of the application, when running on a computer, causes the computer to execute the wireless communication method.

According to the technical scheme, the terminal equipment receives at least one first Downlink Control Information (DCI) sent by the network equipment, wherein the first DCI is used for scheduling X Physical Downlink Shared Channels (PDSCH), X is a positive integer greater than or equal to 1, the bit number of hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the first DCI in an HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, the at least one codeword number comprises the maximum codeword number corresponding to each cell in the cells which can be scheduled by the first DCI, the first DCI is provided with the capability of scheduling at least one PDSCH, and the bit number of the HARQ-ACK information corresponding to the first DCI can be determined based on at least one of the maximum number of cells which can be jointly scheduled by the first DCI and the maximum number of corresponding to each cell in the cells which can be jointly scheduled by the first DCI, and the bit number of the HARQ-ACK information corresponding to the first DCI can be determined based on the first number of bits corresponding to the first DCI.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application;

Fig. 2 is a schematic diagram of PDSCH missed detection provided in an embodiment of the present application;

fig. 3 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 4 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 5 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 6 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 7 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 8 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 9 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 10 is an alternative flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 11 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 12 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 13 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 14 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 15 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 16 is an optional schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 17A is an alternative schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 17B is an alternative schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

Fig. 17C is an alternative schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

Fig. 17D is an alternative schematic diagram of a scheduled PDSCH provided by an embodiment of the present application;

fig. 18 is an alternative schematic block diagram of a wireless communication device provided by an embodiment of the present application;

Fig. 19 is an alternative schematic block diagram of a wireless communication device provided by an embodiment of the present application;

fig. 20 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 21 is a schematic block diagram of a chip of an embodiment of the application;

Fig. 22 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

As shown in figure 1 of the drawings, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

It should be understood that embodiments of the present application are illustrated by way of example only with respect to communication system 100, and embodiments of the present application are not limited thereto. That is, the technical solution of the embodiment of the present application may be applied to various communication systems, such as a long term evolution (Long Term Evolution, LTE) system, an LTE time division duplex (Time Division Duplex, TDD), a universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), an internet of things (Internet of Things, ioT) system, a narrowband internet of things (Narrow Band Internet of Things, NB-IoT) system, an enhanced machine type communication (ENHANCED MACHINE-Type Communications, eMTC) system, a 5th generation (5th generation,5G) communication system (also referred to as a New Radio (NR) communication system), or a super 5G (Beyond 5G, b 5G), a 6th generation (6th generation,6G) communication system, or a future communication system, etc.

In the communication system 100 shown in fig. 1, the network device 120 may be an access network device in communication with the terminal device 110. The access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices 110 (e.g., UEs) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a long term evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, or a base station (gNB) in a NR system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 may be a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

Terminal device 110 may be any terminal device including, but not limited to, a terminal device that employs a wired or wireless connection with network device 120 or other terminal devices.

For example, the terminal device 110 may refer to an access terminal, UE, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, an IoT device, a satellite handset, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handset with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

The wireless communication system 100 may further comprise a core network device 130 in communication with the base station, which core network device 130 may be a 5G core,5gc device, e.g. an access and mobility management function (ACCESS AND Mobility Management Function, AMF), further e.g. an authentication server function (Authentication Server Function, AUSF), further e.g. a user plane function network element (User Plane Function, UPF), further e.g. a session management function network element (Session Management Function, SMF). Optionally, the Core network device 130 may also be a packet Core evolution (Evolved Packet Core, EPC) device of the LTE network, for example, a session management function+a data gateway (Session Management Function +core PACKET GATEWAY, SMF +pgw-C) device of the Core network. It should be appreciated that SMF+PGW-C may perform the functions performed by both SMF and PGW-C. In the network evolution process, the core network device may also call other names, or form new network entities by dividing the functions of the core network, which is not limited in this embodiment of the present application.

Communication may also be achieved by establishing connections between various functional units in the communication system 100 through a next generation Network (NG) interface.

For example, the terminal device establishes an air interface connection with the access network device through Uu interface for transmitting user plane data and control plane signaling, the terminal device may establish control plane signaling connection with the AMF through NG interface 1 (abbreviated as N1), the access network device may establish user plane data connection with the UPF through NG interface 3 (abbreviated as N3), the access network device may establish control plane signaling connection with the AMF through NG interface 2 (abbreviated as N2), the UPF may establish control plane signaling connection with the SMF through NG interface 4 (abbreviated as N4), the UPF may interact user plane data with the data network through NG interface 6 (abbreviated as N6), the AMF may establish control plane signaling connection with the SMF through NG interface 11 (abbreviated as N11), and the SMF may establish control plane signaling connection with the PCF through NG interface 7 (abbreviated as N7).

Fig. 1 exemplarily illustrates one base station, one core network device, and two terminal devices, alternatively, the wireless communication system 100 may include a plurality of base station devices and each base station may include other number of terminal devices within a coverage area, which is not limited by the embodiment of the present application.

It should be noted that fig. 1 is only an exemplary system to which the present application is applicable, and of course, the method shown in the embodiment of the present application may be applicable to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean that a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship. It should also be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, the indication B may indicate that a directly indicates B, for example, B may be obtained by a, or may indicate that a indirectly indicates B, for example, a indicates C, B may be obtained by C, or may indicate that a and B have an association relationship. It should also be understood that "corresponding" mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, may mean that there is an association between the two, and may also be a relationship between an instruction and an indicated, configured, or the like. It should also be understood that "predefined" or "predefined rules" mentioned in the embodiments of the present application may be implemented by pre-storing corresponding codes, tables or other manners in which related information may be indicated in devices (including, for example, terminal devices and network devices), and the present application is not limited to the specific implementation thereof. Such as predefined may refer to what is defined in the protocol. It should be further understood that, in the embodiment of the present application, the "protocol" may refer to a standard protocol in the field of communications, and may include, for example, an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited by the present application.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description describes related technologies of the embodiments of the present application, and the following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as alternatives, which all belong to the protection scope of the embodiments of the present application.

In the related art, in case that one DCI schedules one PDSCH, two kinds of HARQ-ACK codebooks, a Type-1 (Type 1) HARQ-ACK codebook and a Type-2 (Type 2) HARQ-ACK codebook, are supported.

The Type-2 HARQ-ACK codebook adopts a dynamic manner to determine the number of bits of the HARQ-ACK codebook, that is, the terminal device determines, according to the received DCI, the number of HARQ-ACK feedback bits required for actually scheduled PDSCH, semi-persistent Scheduling (SPS) PDSCH RELEASE (release), secondary Cell (SCell) dormancy (dormancy), and transmission configuration indication (Transmission Configuration Indication, TCI) status (state) update indication. In particular, to cope with the problem of missed detection of the remaining PDCCHs except the last PDCCH, a downlink allocation index (Downlink Assignment Index, DAI) indication is introduced. As shown in fig. 2, the network device sends PDSCH1 to PDSCH4, the corresponding DAIs are 1 to 4 respectively, the terminal device does not receive PDSCH3 due to missed detection of PDCCH scheduling PDSCH3, but the terminal device receives PDSCH4, and if the corresponding dai=4, the terminal device can determine that the missed detection of PDSCH3, and then feed back 4-bit HARQ-ACK information to the network device. In fig. 2, transmission based on Transport Block (TB) is taken as an example, and each DCI schedule only schedules 1 Codeword (CW), i.e., the number of bits of HARQ-ACK information of PDSCH scheduled by each DCI is 1.

In a multi-carrier scenario, the DAI is further divided into a Counter-DAI (C-DAI) and a Total DAI (Total-DAI, T-DAI):

The T-DAI represents the total number of { serving cell, PDCCH monitoring opportunity } pairs ({ SERVING CELL, PDCCH monitoring occasion } -pair) on all serving cells to the current PDSCH monitoring opportunity. Wherein the PDCCH monitoring opportunity (monitoring occasions) is indicated by a search space (SEARCH SPACE, SS) for monitoring time domain resources of the PDCCH, typically in slots.

The description of the C-DAI is as follows:

C-DAI represents the cumulative number of { SERVING CELL, PDCCH monitoring occasion } -pair up to the current serving cell and current PDSCH monitoring opportunity, in { SERVING CELL, PDCCH monitoring occasion } -pairs, there is a DCI format (DCI format) that schedules PDSCH, indicates SPS PDSCH release, indicates SCell sleep or TCI state update:

1) For the same { SERVING CELL, PDCCH monitoring occasion }, count in ascending order of starting time of PDSCH reception;

2) Counting according to the ascending order of SERVING CELL index;

3) Finally, the counting is carried out according to the ascending sequence of PDCCH monitoring occasion.

The three points above characterize a cyclic sequence. That is, for the C-DAI count, the outermost layer cycle is counted at PDCCH monitoring occasion, then the second layer cycle from outside to inside, i.e., at SERVING CELL index count in the case of the same PDCCH monitoring occasion, and the innermost layer cycle is counted at PDSCH reception time in the case of the same PDCCH monitoring occasion and the same SERVING CELL.

The working mechanism of the C-DAI may be as shown in fig. 3, where there are 3 component carriers (Component Carrier, CCs), i.e., CCs 1 to CC3, and 3 slots (i.e., slots 1 to slot 3), and DCI 1 to DCI 3 schedule PDSCH 1 to PDSCH3 respectively, and different CCs correspond to different serving cells. According to the counting sequence of the C-DAIs, the outermost layer is PDCCH monitoring occasion index, DCIs 1-3 are all in slot 1, so PDCCH monitoring occasion index of DCIs 1-3 are the same, and secondly, the DCIs are arranged in ascending order of SERVING CELL index in the sequence of SERVING CELL index, and the PDSCH 2 is on the CC1, the PDSCH 1 is on the CC2, the PDSCH3 is on the CC3, so that the value (value) of the C-DAIs contained in the DCI 2 of the scheduling PDSCH 2 is minimum and is 0, the value of the C-DAIs in the DCI 1 of the scheduling PDSCH 1 is 1, and the value of the C-DAIs in the DCI 3 corresponding to the scheduling PDSCH3 is 2.

However, after one DCI schedules the PDSCH of a plurality of cells, the counting of C-DAIs has problems, as shown in FIG. 4, the network device sends DCI1 and DCI2 in slot 1, DCI1 is used for scheduling PDSCH2 on cell 2 and PDSCH3 on cell 3, DCI2 is used for scheduling PDSCH1 on cell 1 and PDSCH4 on cell 4, when the counting of C-DAIs is carried out according to the priority sequence of PDCCH monitoring occasion, SERVING CELL index and PDSCH receiving time, the counting sequence of C-DAIs is that the outermost layer is PDCCH monitoring occasion index, because DCI1 and DCI2 are in slot 1, PDCCH monitoring occasion index is the same, the next step is that the counting is carried out according to SERVING CELL index where PDSCH1 is located, the cell index where DCI 2/3 is scheduled comprises 2 CC2 and CC3, the cell index where DCI 1/4 is scheduled also comprises 2 CC1 and CC4, the counting sequence of C-DAIs is carried out according to the priority sequence of PDCCH monitoring occasion, the corresponding HARQ-ACK information of PDSCH2/3 is carried out before the corresponding to the DCI 1/4, or the value of C-DAI is carried out before the value is carried out, and whether the value of DCI is carried out before the value is carried out or is carried out.

Further, for each DCI or each PDSCH (each DCI or each PDSCH may be possible in case one DCI is scheduled), the corresponding HARQ-ACK bit number is determined by:

-if the terminal device is not configured with physical uplink control channel (Physical Uplink Control Channel, PUCCH) spatial bundling parameters (HARQ-ACK-SpatialBundlingPUCCH) and a parameter maxNrofCodeWordsScheduledByDCI characterizing the number of maximum codewords is 2 on one DL partial Bandwidth (BWP) of at least one cell, then for each DCI or for each PDSCH, 2 bits of HARQ-ACK information;

Other cases, 1 bit HARQ-ACK information for each DCI or for each PDSCH.

The definition of parameter maxNrofCodeWordsScheduledByDCI is the maximum number of codewords that one DCI can schedule,

Parameters HARQ-ACK-SpatialBundlingPUCCH are used to configure HARQ-ACKs for multiple codewords of one DCI schedule without bundling.

In the developed Multi-Carrier (Multi-Carrier) project, one DCI (DCI format 1_X) is supported to schedule the PDSCH of a plurality of cells, and all the scheduled cells scheduled by the DCI format 1_X are contained in the same PUCCH group (group), namely, the HARQ-ACK information corresponding to the PDSCH of the plurality of cells is fed back in the same PUCCH, and for the Type-2 HARQ-ACK codebook, it is concluded that two HARQ-ACK sub-codebooks are constructed, one HARQ-ACK sub-codebook comprises the HARQ-ACK information corresponding to the PDSCH of one cell, namely, one-to-one DCI, and the two HARQ-ACK sub-codebooks comprise the HARQ-ACK information corresponding to the PDSCH of the plurality of cells, namely, one-to-many DCI, and one-to-one DCI count DAI respectively.

If the maximum number of codewords 2 is not configured in each cell in the set of cells (set of cells) that can be scheduled by the same DCI format 1_X, the number of HARQ-ACK information bits corresponding to each DCI format 1_X is N1, where N1 is the maximum number of cells (or maximum number of PDSCH) that can be co-scheduled (co-schedule) by the DCI format 1_X. At least one cell of the plurality of cells scheduled by the DCI format 1_X is configured with a maximum codeword number of 2, and the number of HARQ-ACK information bits corresponding to the DCI format 1_X for scheduling the plurality of cells needs to be discussed.

In order to facilitate understanding of the technical solution of the embodiments of the present application, the technical solution of the present application is described in detail below through specific embodiments. The above related technologies may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

The wireless communication method provided by the embodiment of the application is applied to the terminal equipment, and as shown in fig. 5, the method comprises the following steps:

S501, terminal equipment receives at least one first downlink control information DCI sent by network equipment, wherein the first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, the bit number of HARQ-ACK information corresponding to the first DCI in a HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum code word number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one code word number comprises the maximum code word number corresponding to each cell in the cells which can be scheduled by the first DCI.

The wireless communication method provided by the embodiment of the application is applied to network equipment, and as shown in fig. 6, the method comprises the following steps:

S601, a network device sends at least one first downlink control information DCI to a terminal device, wherein the first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, the bit number of HARQ-ACK information corresponding to the first DCI in a HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one codeword number comprises the maximum codeword number corresponding to each cell in the cells which can be scheduled by the first DCI.

The wireless communication method provided by the embodiment of the application is applied to a wireless communication system comprising network equipment and terminal equipment, and as shown in fig. 7, the method comprises the following steps:

s701, the network device sends at least one first downlink control information DCI to the terminal device.

The first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, the bit number of HARQ-ACK information corresponding to the first DCI in a HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum code word number, wherein the first number is the maximum number of cells which can be jointly scheduled by the first DCI, and the at least one code word number comprises the maximum code word number corresponding to each cell in the cells which can be scheduled by the first DCI.

In the wireless communication method provided by the embodiment of the application, a terminal device receives at least one first downlink control information DCI sent by a network device, wherein the first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, the bit number of hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the first DCI in a HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, the first number is the maximum number of cells which can be jointly scheduled by the first DCI, the at least one codeword number comprises the maximum number of codewords corresponding to each cell in the cells which can be scheduled by the first DCI, the first DCI has the capability of scheduling at least one PDSCH, and the bit number of HARQ-ACK information corresponding to the first DCI is determined based on at least one or two bits of the first DCI which can be jointly scheduled and the maximum number of the corresponding to each cell in the cells which can be scheduled by the first DCI, and therefore the first number of bits of HARQ-ACK information is determined based on the first number of bits corresponding to the first DCI.

Next, a wireless communication method shown in fig. 5, 6, or 7 provided by an embodiment of the present application will be described.

The network device transmits at least one first DCI to the terminal device. The first DCI schedules X PDSCH, and X is greater than or equal to 1, and the first DCI can schedule one or more PDSCH, where multiple PDSCH may be understood as at least two PDSCH.

For any one of the at least one first DCI, among the scheduled X PDSCH, different PDSCH corresponds to different serving cells, i.e., X PDSCH corresponds to X serving cells, one PDSCH corresponds to one serving cell and different PDSCH corresponds to different serving cell.

In some embodiments, the first DCI employs DCI format 1_X.

The X serving cells corresponding to the X PDSCH scheduled by the first DCI are contained in the same PUCCH group (group), and HARQ-ACK information corresponding to the X PDSCH is fed back on the same PUCCH.

It is understood that HARQ-ACK information corresponding to each first DCI in at least one first DCI is included in the same HARQ-ACK codebook. The HARQ-ACK information corresponding to the first DCI includes HARQ-ACK information corresponding to each PDSCH of the X PDSCHs actually scheduled by the first DCI.

In some embodiments, the HARQ-ACK codebook is a type 2HARQ-ACK, and the size of the type 2HARQ-ACK codebook is determined according to the number of first DCIs in the at least one first DCI and the number of bits of HARQ-ACK information corresponding to each first DCI.

For any one of the at least one first DCI, the number of bits M of HARQ-ACK information corresponding to the first DCI is determined based on at least one of:

information I and a first quantity, wherein the first quantity is the maximum cell number which can be jointly scheduled by the first DCI;

and the second information and at least one maximum codeword number, wherein the at least one maximum codeword number comprises the maximum codeword number corresponding to each cell in the cells which can be scheduled by the first DCI.

After determining the bit number of the HARQ-ACK information corresponding to each first DCI, the terminal equipment constructs an HARQ-ACK codebook based on the bit number of the HARQ-ACK information corresponding to each first DCI, and feeds the constructed HARQ-ACK codebook back to the network equipment through the PUCCH. The HARQ-ACK codebook includes HARQ-ACK information corresponding to a PDSCH actually scheduled by each first DCI in at least one first DCI.

In the embodiment of the present application, the cells that can be scheduled by the first DCI may be understood as all cells that can be scheduled by the first DCI. It can be understood that, the cells that can be scheduled by the first DCI belong to the same PUCCH group, and the cells that can be scheduled by the first DCI refer to the cells that can be scheduled by the first DCI in the PUCCH group corresponding to the first DCI.

In the embodiment of the present application, cells that can be co-scheduled by the first DCI form a cell combination (cell combination), that is, a set of cells that can be co-scheduled by the first DCI are combined. It is understood that a cell co-scheduled by the first DCI may be understood as a cell that can be simultaneously scheduled by the first DCI.

The first DCI corresponds to at least one cell combination, and for each cell combination, the cells included in the cell combination are part or all of the cells that can be scheduled by the first DCI. It can be understood that cells that can be scheduled by the first DCI belong to the same PUCCH group, the first DCI can schedule at least one cell combination, a cell that can be scheduled by the first DCI is a union of cells included in all cell groups that can be scheduled by the first DCI, and cells included in one cell combination belong to the PUCCH group. For the first DCI, X serving cells corresponding to the X PDSCH scheduled by the first DCI are cells included in one cell combination.

The cells co-scheduled by the first DCI belong to the same PUCCH group, and it can be understood that the cells co-scheduled by the first DCI refer to cells co-scheduled by the first DCI in the PUCCH group corresponding to the first DCI.

In an example, the terminal device is configured that cell1, cell2, cell3, cell4, cell5 and cell6 belong to the same PUCCH group, the cell combination corresponding to the first DCI includes { cell1, cell2}, { cell1, cell3}, { cell1, cell2, cell4}, { cell2, cell3, cell4, cell5}, and the cell capable of scheduling the first DCI includes cell1, cell2, cell3, cell4 and cell5, and the X PDSCHs scheduled by the first DCI received by the terminal include PDSCH1 on cell1 and PDSCH3 on cell 3.

The first number is the maximum number of cells included in the same cell combination, that is, the number of cells included in the cell combination including the maximum number of cells, in at least one cell combination corresponding to the first DCI, and is denoted Nmax herein.

In one example, the first DCI can schedule the following cell groups of { cell 1+cell 2}, { cell 1+cell 2+cell 3}, and { cell 3+cell 4}, and the cells that the first DCI can schedule include cell 1, cell2, cell3, and cell4, i.e., the number of cells that the first DCI can schedule is 4, and the first number is the number of cells that include the largest cell group { cell 1+cell 2+cell 3 }.

In some embodiments, for different first DCIs, the corresponding first number is the same. The different first DCI may be understood as a different first DCI belonging to the same PUCCH group for the scheduled PDSCH, or a different first DCI in which corresponding HARQ-ACK information is located in the same HARQ-ACK codebook.

For the first DCI, P cells can be scheduled, and for an i-th cell in the P cells, the cell has a maximum codeword number (max number of codeword) Ci, where the maximum codeword number corresponding to the cell indicates the codeword number corresponding to the PDSCH corresponding to the cell, which has an effect on the maximum number of bits that HARQ-ACK information corresponding to the first DCI can occupy in the HARQ-ACK codebook.

It can be understood that the maximum number of codewords corresponding to each cell is the maximum number of codewords corresponding to the activated BWP of each cell, or the maximum number of codewords corresponding to each BWP of each cell.

For a first DCI, a number of bits M of HARQ-ACK information corresponding to the first DCI is determined based on at least one of information one and information two.

In the case that the number of bits M of the HARQ-ACK information corresponding to the first DCI is determined based on the first number, the number of bits M of the HARQ-ACK information corresponding to the first DCI is determined based on the first number and the maximum number of codewords corresponding to the PDSCH, optionally, the maximum number of codewords corresponding to the PDSCH is 2.

In some embodiments, the number of bits M of HARQ-ACK information corresponding to the first DCI is determined based on a product of the first number and a maximum number of codewords corresponding to one PDSCH.

In an example, nmax corresponding to the first DCI is 4, and the number of bits M of HARQ-ACK information corresponding to the first DCI is 2×4=8.

When the number of bits M of HARQ-ACK information corresponding to the first DCI is determined based on the maximum number of codewords corresponding to each cell in a cell that can be scheduled by the first DCI, the number of bits M of HARQ-ACK information corresponding to the first DCI is determined based on the maximum number of codewords corresponding to each cell in the cell that can be scheduled by the first DCI.

In some embodiments, the number of bits M of HARQ-ACK information corresponding to the first DCI is a sum of maximum numbers of codewords corresponding to each of the cells that the first DCI can schedule.

In an example, the cells that can be scheduled by the first DCI include cell 1, cell2, cell3, and cell4, and the maximum codeword numbers corresponding to cell 1, cell2, cell3, and cell4 are 1,2, 1, and 2, respectively, and then the bit number M of HARQ-ACK information corresponding to the first DCI is 1+2+1+2=6.

When the number M of bits of HARQ-ACK information corresponding to the first DCI is determined based on the first number and the maximum number of codewords corresponding to each cell in cells that can be scheduled by the first DCI, a manner of determining the number of bits of HARQ-ACK information corresponding to the first DCI includes at least one of:

Determining a first mode, wherein the first mode is determined based on the first number and a first maximum codeword number, and the first maximum codeword number is the maximum value of the at least one maximum codeword number;

and determining a second mode based on N maximum code word numbers in the at least one maximum code word number, wherein the value of N is the value of the first number.

In the first determination mode, the terminal device determines the number M of bits of HARQ-ACK information corresponding to the first DCI based on the first number and the first maximum number of codewords. The first maximum number of codewords is the maximum value of the maximum number of codewords corresponding to each cell in the cells that can be scheduled by the first DCI.

In some embodiments, the number of bits M of the HARQ-ACK information corresponding to the first DCI is a product of the first number and the first maximum number of codewords.

In an example, the first DCI can schedule the following cell combinations of { cell 1+cell 2}, { cell 1+cell 2+cell 3}, { cell 3+cell 4}, where the cell that the first DCI can schedule includes cell1, cell2, cell3, cell4, and the maximum codeword numbers corresponding to cell1, cell2, cell3, cell4 are respectively 1,2, and the maximum codeword number is the maximum value of {1, 2,1, 2} 2, the first number is the cell number of 3 included in the cell combination { cell 1+cell 2+cell 3} including the largest cell number, and the bit number M of HARQ-ACK information corresponding to the first DCI is 3*2 =6.

In the wireless communication method provided by the embodiment of the application, the bit number of the HARQ-ACK information corresponding to the first DCI is determined based on the first number and the first maximum codeword number, so that the bit number of the HARQ-ACK information corresponding to the first DCI only needs to consider the number of the cells included in the cell combination and the maximum value of the maximum codeword number corresponding to each cell, and does not need to consider which cells are specifically included in the cell combination, thereby being simple in implementation and reducing the construction complexity of the HARQ-ACK codebook.

In the second determining mode, the terminal device determines the bit number M of the HARQ-ACK information corresponding to the first DCI according to the first number of maximum codeword numbers in the maximum codeword numbers corresponding to each cell in the cells that can be scheduled by the first DCI.

In some embodiments, if the determining manner of the number of bits of the HARQ-ACK information corresponding to the first DCI includes determining based on the first number of maximum codewords in the at least one maximum codeword number, in determining manner two, the number of bits of the HARQ-ACK information corresponding to the first DCI is a sum of the first number of maximum codewords.

In the wireless communication method provided by the embodiment of the application, the bit number of the HARQ-ACK information corresponding to the first DCI is determined based on the first number of the maximum code words in the at least one maximum code word number, so that the bit number of the HARQ-ACK information corresponding to the first DCI only needs to consider the number of the cells included in the cell combination and the maximum code word number corresponding to each cell, and does not need to consider which cells are specifically included in the cell combination, therefore, the scheme is simpler to implement and has strong universality, and the construction of the HARQ-ACK codebook is simplified. In addition, compared with the first determination mode, the determination mode reduces the bit number of the HARQ-ACK, and improves the reliability of the HARQ-ACK information, thereby reducing the size of the HARQ-ACK codebook and improving the reliability of the HARQ-ACK codebook.

In some embodiments, the first number of maximum codewords may be a first number of maximum codewords randomly selected from the maximum numbers of codewords corresponding to each of the cells of the first DCI schedulable cell.

At this time, the terminal device randomly selects a first number of maximum codeword numbers from the maximum codeword numbers corresponding to each cell in the cells that can be scheduled by the first DCI, and determines M based on the randomly selected first number of maximum codeword numbers. Optionally, the sum of the first number of maximum codeword numbers randomly selected is M.

In some embodiments, the value of the N maximum codeword numbers is greater than or equal to the value of the other maximum codeword numbers out of the N maximum codeword numbers in the at least one maximum codeword number.

It is understood that the value of N is a first number of values, and a first number of maximum codewords is selected from at least one maximum codeword, where the first number of maximum codewords is a first number of maximum codewords having a maximum value of the at least one maximum codeword.

In an example, the cells capable of being scheduled by the first DCI include cell 1, cell2, cell3 and cell4, and the maximum codeword numbers corresponding to cell 1, cell2, cell3 and cell4 are respectively 1,2, 1 and 2, and if the first number is 3, the 3 maximum codeword numbers with larger values in 1,2, 1 and 2 include 2, 2 and 1.

The terminal device performs ascending order or descending order of the maximum codeword numbers corresponding to each cell in the cells that can be scheduled by the first DCI, and selects N maximum codeword numbers from the maximum codeword numbers corresponding to each cell based on the ordering result to determine M. Here, the last N maximum codeword numbers in the ascending order may be selected to determine M, or the first N maximum codeword numbers in the descending order may be selected to determine M.

In an example, the first DCI can schedule the combination of cells including cell 1, cell2, cell3 and cell3, cell3 and cell4, and the maximum codeword numbers corresponding to cell 1, cell2, cell3 and cell4 are respectively 1,2, 1 and 2, the first number is { cell 1+cell 2+cell 3} including cell number 3, and the bit number M of the HARQ-ACK information corresponding to the first DCI is calculated from the 3 maximum codeword numbers including 1,2, 1 and 2, and 1, wherein the bit number M of the HARQ-ACK information corresponding to the first DCI is 2+2+1=5.

In the embodiment of the application, the bit number of the HARQ-ACK information corresponding to the first DCI is determined based on the maximum number of the cells which can be jointly scheduled by the first DCI and the maximum code word number of each cell in the cells which can be jointly scheduled by the first DCI, and the bit number of the HARQ-ACK information corresponding to the first DCI is not dependent on the PDSCH which is actually scheduled by the first DCI, so that the bit number of the HARQ-ACK information corresponding to the first DCI is determined in a semi-static mode, the specific cells of the cells which can be jointly scheduled by the first DCI are not required to be determined, and the bit number of the HARQ-ACK information corresponding to the first DCI can be determined based on the maximum number of the cells which can be jointly scheduled only by determining the number of the cells which can be jointly scheduled.

In some embodiments, the first DCI includes a counter-downlink allocation index C-DAI, and in the at least one first DCI, the C-DAI included in each first DCI is used to construct a type 2 HARQ-ACK codebook.

In the embodiment of the present application, the description of the C-DAI carried by the first DCI may refer to the following description of the C-DAI in the wireless communication method provided in fig. 8, 9 or 10, which is not repeated here.

The wireless communication method provided by the embodiment of the application is applied to the terminal equipment, as shown in fig. 8, and comprises the following steps:

S801, a terminal device receives at least one first downlink control information DCI sent by a network device, wherein the first DCI comprises C-DAI, and the C-DAI contained in each first DCI is used for constructing a type 2HARQ-ACK codebook.

The wireless communication method provided by the embodiment of the application is applied to network equipment, as shown in fig. 9, and comprises the following steps:

S901, a network device sends at least one first downlink control information DCI to a terminal device, wherein the first DCI comprises C-DAI, and the C-DAI contained in each first DCI is used for constructing a type 2HARQ-ACK codebook.

The wireless communication method provided by the embodiment of the application is applied to a wireless communication system comprising network equipment and terminal equipment, and as shown in fig. 10, the method comprises the following steps:

s1001, the network equipment sends at least one piece of first Downlink Control Information (DCI) to the terminal equipment, wherein the first DCI comprises a C-DAI.

And C-DAI contained in each first DCI is used for constructing a type 2HARQ-ACK codebook in the at least one first DCI.

In the embodiment of the application, for the case that the PDSCH is scheduled through at least one DCI, and each DCI schedules at least one PDSCH respectively, the terminal equipment constructs the HARQ-ACK codebook of the Type 2 through the C-DAI carried in the DCI, thereby providing a Type-2 codebook construction scheme when the HARQ-ACK information corresponding to at least one PDSCH scheduled through one DCI is fed back through the same PUCCH, perfecting the HARQ feedback scheme when at least one PDSCH is scheduled through a single DCI, and improving the HARQ feedback efficiency.

In the embodiment of the present application, the wireless communication method provided in fig. 5, fig. 6, and fig. 7 is used to determine the number of bits of the HARQ-ACK information corresponding to the first DCI of the HARQ-ACK codebook, and the wireless communication method provided in fig. 8, fig. 9, and fig. 10 is used to determine the sequence of the HARQ-ACK information corresponding to each first DCI in the type 2HARQ-ACK codebook. The wireless communication method shown in fig. 5, 6 and 7 and the wireless communication method shown in fig. 8, 9 and 10 may be implemented independently or together. When the radio communication method shown in fig. 5, 6, and 7 is implemented together with the radio communication method shown in fig. 8, 9, and 10, at least one first DCI in the radio communication method shown in fig. 5, 6, and 7 is the same at least one first DCI as at least one first DCI in the radio communication method shown in fig. 8, 9, and 10, and the HARQ-ACK codebook in fig. 5, 6, and 7 is a type 2HARQ-ACK codebook.

Next, a wireless communication method shown in fig. 8, 9, or 10 provided by an embodiment of the present application will be described.

It is understood that HARQ-ACK information corresponding to each first DCI of the at least one first DCI is included in a HARQ-ACK codebook. After the terminal equipment constructs the HARQ-ACK codebook, the HARQ-ACK codebook is sent to the network equipment, and the network equipment determines whether each first DCI is correctly received by the terminal equipment according to the HARQ-ACK information corresponding to each first DCI carried in the HARQ-ACK codebook.

The HARQ-ACK information corresponding to the first DCI includes HARQ-ACK information corresponding to each PDSCH in the X PDSCHs scheduled by the first DCI. The C-DAI included in each first DCI of the at least one first DCI is used to determine an order of HARQ-ACK information corresponding to each first DCI in a type 2 HARQ-ACK codebook.

In some embodiments, the counting of the C-DAIs in the at least one first DCI includes:

Counting according to the index of the service cell.

Here, the network device determines a serving cell index corresponding to each first DCI in the at least one first DCI, and counts C-DAIs in each first DCI in the at least one first DCI based on the serving cell index corresponding to each first DCI.

The terminal equipment receives at least one first DCI, determines the value of C-DAI carried by each first DCI in the at least one first DCI, and sorts the corresponding HARQ-ACK information in the at least one first DCI based on the C-DAI carried by each first DCI, namely sorts the HARK-ACK information corresponding to the first DCI included in the type 2 HARQ-ACK codebook based on the C-DAI carried by each first DCI, thereby constructing the type 2 HARQ-ACK codebook.

In some embodiments, the counting according to the serving cell index includes counting according to the serving cell index corresponding to a first PDSCH scheduled by the first DCI, where the first PDSCH is one of the X PDSCHs.

For a first DCI, the first DCI schedules X PDSCH, one PDSCH is selected from the X PDSCH scheduled by the first DCI to serve as the first PDSCH, a service cell index corresponding to the first PDSCH is used as the service cell index corresponding to the first DCI to determine C-DAI in the first DCI, and the sequence of HARQ-ACK information corresponding to the first DCI in the HARQ-ACK codebook is determined based on the C-DAI in the first DCI. Here, the serving cell index corresponding to the first PDSCH is an index of the serving cell corresponding to the first PDSCH.

In an example, DCI1 schedules PDSCH1 and PDSCH2, DCI2 schedules PDSCH3 and PDSCH4, and if the first PDSCH scheduled by DCI1 is PDSCH1 and the first PDSCH scheduled by DCI2 is PDSCH3, the C-DAI in DCI1 and the C-DAI in DCI2 are counted according to the serving cell index corresponding to PDSCH1 and the serving cell index corresponding to PDSCH3, and the order of HARQ-ACK information corresponding to DCI1 and HARQ-ACK information corresponding to DCI2 in the HARQ-ACK codebook is determined based on the counts of the C-DAI in DCI1 and the C-DAI in DCI 2.

In the embodiment of the application, when the first DCI schedules at least one PDSCH, the first PDSCH is used as a reference PDSCH to determine the service cell index corresponding to the first DCI, so that the uniqueness of the service cell index corresponding to the first DCI can be ensured when the first DCI schedules at least one service cell, and when counting the C-DAI in at least one first DCI, the C-DAI in the first DCI is counted based on the unique service cell index corresponding to the first DCI, so that the C-DAI in the first DCI is effectively counted based on the service cell index.

In some embodiments, the first PDSCH satisfies one of the following first conditions:

A first condition a, that is, the earliest start time among the X PDSCHs scheduled by the first DCI;

a first condition B that, among X PDSCHs scheduled by the first DCI, a start time is the latest;

a first condition C, that is, an end time is earliest among X PDSCHs scheduled by the first DCI;

First condition D, the end time is the latest among the X PDSCHs scheduled by the first DCI.

For a first DCI, the network device selects a first PDSCH from X PDSCHs scheduled by the first DCI based on a first condition, wherein the first condition used by the network device comprises any one of a first condition A, a first condition B, a first condition C and a first condition D.

The first condition a, the first condition B, the first condition C, and the first condition D are conditions based on different transmission times of the PDSCH.

For the first condition a and the first condition B, the starting time of the PDSCH may be understood as a position of a starting symbol of the PDSCH in the time domain. For the first condition C and the first condition D, the end time of the PDSCH may be understood as a position of an end symbol of the PDSCH in the time domain.

In some embodiments, if the PDSCH of the X PDSCH that satisfies the first condition includes at least two, the first PDSCH is one of the at least two PDSCH.

It may be understood that if one PDSCH satisfying the first condition exists among the X PDSCHs scheduled by the first DCI, the PDSCH satisfying the first condition is used as the first PDSCH, and if a plurality of PDSCHs satisfying the first condition exists among the X PDSCHs scheduled by the first DCI, one PDSCH is selected from the plurality of PDSCHs satisfying the first condition as the first PDSCH.

Taking the first PDSCH from the X PDSCHs scheduled by the first DCI using the first condition a as an example, the network device determines a starting time of each PDSCH in the X PDSCHs scheduled by the first DCI, determines a PDSCH with the earliest starting time, and if there is only one PDSCH with the earliest starting time, uses the PDSCH with the earliest starting time as the first PDSCH, and if there are a plurality of PDSCHs with the same starting time and the earliest starting time, uses one PDSCH from the plurality of PDSCHs with the earliest starting time as the first PDSCH.

In an example, as shown in FIG. 11, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, the earliest starting time PDSCH is PDSCH1 on CC1, the first PDSCH is PDSCH1, and the C-DAI of DCI1 is counted according to the cell index of CC 1.

In an example, as shown in fig. 12, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, starting times of PDSCH1 and PDSCH2 are the same and the starting time is the earliest, and then PDSCH with the earliest starting time includes PDSCH1 on CC1 and PDSCH2 on CC2, and then the first PDSCH is one of PDSCH1 and PDSCH2.

Taking the first PDSCH from the X PDSCHs scheduled by the first DCI using the first condition B as an example, the network device determines a starting time of each PDSCH of the X PDSCHs scheduled by the first DCI, determines a PDSCH with a latest starting time, and if there is only one PDSCH with a latest starting time, uses the PDSCH with the latest starting time as the first PDSCH, and if there are a plurality of PDSCHs with the same starting time and the latest starting time, uses one PDSCH from the plurality of PDSCHs with the latest starting time as the first PDSCH.

In an example, as shown in fig. 11, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, and the PDSCH with the latest start time is PDSCH3 on CC3, then the first PDSCH is PDSCH3, and the C-DAI of DCI1 is counted according to the serving cell index of PDSCH3, i.e., the serving cell index of CC 3.

In an example, as shown in fig. 13, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, starting times of PDSCH2 and PDSCH3 are the same and starting times are the latest, and then PDSCH with the latest starting time includes PDSCH2 on CC2 and PDSCH3 on CC3, and then the first PDSCH is one of PDSCH2 and PDSCH 3.

Taking the first PDSCH from the X PDSCHs scheduled by the first DCI using the first condition C as an example, the network device determines the end time of each PDSCH in the X PDSCHs scheduled by the first DCI, determines the PDSCH with the earliest end time, if there is only one PDSCH with the earliest end time, uses the PDSCH with the earliest end time as the first PDSCH, and if there are multiple PDSCHs with the same end time and the earliest end time, uses one PDSCH from the PDSCHs with the earliest end time as the first PDSCH.

In an example, as shown in fig. 11, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, and the PDSCH with the earliest end time is PDSCH3 on CC3, the first PDSCH is PDSCH3, and the C-DAI of DCI1 is counted according to the serving cell index of PDSCH3, i.e., the serving cell index of CC 3.

In an example, as shown in fig. 14, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, the end times of PDSCH1 and PDSCH2 are the same and the end time is the earliest, the PDSCH with the earliest end time includes PDSCH1 on CC1 and PDSCH2 on CC2, and the first PDSCH is one of PDSCH1 and PDSCH2.

Taking the first PDSCH from the X PDSCHs scheduled by the first DCI using the first condition D as an example, the network device determines the end time of each PDSCH in the X PDSCHs scheduled by the first DCI, determines the PDSCH with the latest end time, if there is only one PDSCH with the latest end time, uses the PDSCH with the latest end time as the first PDSCH, and if there are multiple PDSCHs with the same end time and the latest end time, uses one PDSCH from the PDSCHs with the latest end time as the first PDSCH.

In an example, as shown in fig. 11, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, and the PDSCH with the latest end time is PDSCH2 on CC2, then the first PDSCH is PDSCH2, and the C-DAI of DCI1 is counted according to the serving cell index of PDSCH2, i.e., the serving cell index of CC 2.

In an example, as shown in fig. 15, DCI1 schedules 3 PDSCHs, PDSCH1 on CC1, PDSCH2 on CC2, and PDSCH3 on CC3, the end time of PDSCH2 and PDSCH3 is the same and the end time is the latest, the PDSCH with the latest end time includes PDSCH2 on CC2 and PDSCH3 on CC3, and the first PDSCH is one of PDSCH2 and PDSCH 3.

In the embodiment of the application, the first PDSCH is determined based on the starting time or the ending time corresponding to each PDSCH in a plurality of PDSCHs scheduled by the first DCI, and the serving cell index corresponding to the first PDSCH is used as the serving cell index corresponding to the first DCI, so that the serving cell index corresponding to the first DCI is determined by the starting time or the ending time corresponding to the PDSCH representing the transmission time of the PDSCH, a mode of determining the reference SERVING CELL by the transmission time of the PDSCH is provided, and the selected first PDSCH is enabled to be consistent with the maintenance of the reference PDSCH in the determination of the HARQ-ACK TIMING to a great extent.

In the HARQ-ACK timing (timing) determination, if the end time or the end symbol of more than one PDSCH is the same, it is not necessary to further determine one PDSCH from among the more than one PDSCH as the reference PDSCH, because the determined slot in which the HARQ-ACK is located is the same regardless of which one of the more than one PDSCH is the reference PDSCH; in the wireless communication method provided by the embodiment of the application, when more than one PDSCH meeting the first condition exists in the PDSCH corresponding to the first DCI, one PDSCH is selected from the plurality of PDSCH meeting the first condition as the reference PDSCH, so that the reference PDSCH selected by the C-DAI count is unique and can correspond to a unique serving cell index.

In some embodiments, the first PDSCH further satisfies at least one of:

A second condition, the second condition being determined based on the number of symbols occupied by PDSCH;

And a third condition, wherein the third condition is determined based on the serving cell index corresponding to the PDSCH.

If there are a plurality of PDSCHs satisfying the first condition among the X PDSCHs scheduled by the first DCI, one PDSCH is selected from the plurality of PDSCHs satisfying the first condition as the first PDSCH, and the condition for selecting the first PDSCH from the plurality of PDSCHs satisfying the first condition may include one or both of the second condition and the third condition.

It may be understood that the plurality of PDSCH satisfying the first condition includes one PDSCH satisfying the second condition or the third condition, and the PDSCH satisfying the second condition or the third condition is taken as the first PDSCH, and if the plurality of PDSCH satisfying the first condition includes the plurality of PDSCH satisfying the second condition or the third condition, one PDSCH is continuously selected from the PDSCH satisfying the second condition or the third condition according to the third condition or the second condition as the first PDSCH.

In some embodiments, a PDSCH satisfying the second condition among PDSCH satisfying the first condition is determined, and if the PDSCH satisfying the second condition includes a plurality of PDSCH, a PDSCH satisfying the third condition is determined from PDSCH satisfying the first condition and satisfying the second condition.

In some embodiments, the second condition includes one of:

the number of occupied symbols is the least;

The number of occupied symbols is the largest.

In some embodiments, the third condition comprises one of:

The serving cell index is the smallest;

The serving cell index is the largest.

The condition of selecting the first PDSCH from the plurality of PDSCHs satisfying the first condition may include a second condition example, determining the number of symbols occupied by each PDSCH among the plurality of PDSCHs satisfying the first condition, and regarding the PDSCH having the least or most number of occupied symbols as the first PDSCH.

In an example, as shown in fig. 12, PDSCH1 and PDSCH2 satisfy a first condition, the number of symbols occupied by PDSCH1 is greater than the number of symbols occupied by PDSCH2, the first PDSCH is PDSCH2 if the PDSCH with the smallest number of occupied symbols is used as the first PDSCH, and the first PDSCH is PDSCH1 if the PDSCH with the largest number of occupied symbols is used as the first PDSCH.

The condition for selecting the first PDSCH from the plurality of PDSCHs satisfying the first condition may include a third condition example, determining a serving cell index corresponding to each PDSCH in the plurality of PDSCHs satisfying the first condition, and regarding a PDSCH having a smallest or largest corresponding serving cell index as the first PDSCH.

In an example, as shown in fig. 12, PDSCH1 and PDSCH2 satisfy a first condition, the serving cell index corresponding to PDSCH1 is larger than the serving cell index corresponding to PDSCH2, the first PDSCH is PDSCH1 if the PDSCH with the smallest serving cell index is used as the first PDSCH, and the first PDSCH is PDSCH2 if the PDSCH with the largest serving cell index is used as the first PDSCH.

The conditions for selecting the first PDSCH from the plurality of PDSCHs satisfying the first condition may include a second condition and a third condition, determining the number of symbols occupied by each PDSCH in the plurality of PDSCHs satisfying the first condition, and when there are a plurality of PDSCHs having the least or most number of occupied symbols, using the serving cell index number corresponding to each PDSCH in the PDSCH having the least or most number of occupied symbols, and using the PDSCH having the smallest or largest corresponding serving cell index as the first PDSCH.

In an example, as shown in fig. 16, taking the first condition as an example of the PDSCH with the earliest or latest starting time in the X PDSCHs, PDSCH1 and PDSCH2 satisfy the first condition, and the number of symbols occupied by PDSCH1 and PDSCH2 is the same, both PDSCH1 and PDSCH2 satisfy the second condition (the number of occupied symbols is the smallest or largest), the serving cell index corresponding to PDSCH1 is larger than the serving cell index corresponding to PDSCH2, the first PDSCH is PDSCH1 if the PDSCH with the smallest serving cell index is used as the first PDSCH, and the first PDSCH is PDSCH2 if the PDSCH with the largest serving cell index is used as the first PDSCH.

In some embodiments, a PDSCH satisfying a third condition among PDSCH satisfying the first condition is taken as the first PDSCH.

It can be understood that, in the case that the X PDSCHs scheduled by the first DCI correspond to the X serving cells, the different PDSCHs scheduled by the first DCI correspond to different serving cells, that is, the serving cell indexes corresponding to the different PDSCHs are different, and the third condition is that, in the case of determining based on the serving cell indexes corresponding to the PDSCHs, only one PDSCH satisfying the third condition is included in the PDSCH satisfying the first condition.

In an example, as shown in fig. 16, taking the first condition as an example of the PDSCH with the earliest or latest starting time among the X PDSCHs, PDSCH1 and PDSCH2 satisfy the first condition, the serving cell index corresponding to PDSCH1 is larger than the serving cell index corresponding to PDSCH2, if the PDSCH with the smallest serving cell index is used as the first PDSCH, the first PDSCH is PDSCH1, and if the PDSCH with the largest serving cell index is used as the first PDSCH, the first PDSCH is PDSCH2, and at this time, the number of symbols occupied by PDSCH1 and PDSCH2 need not be considered.

In some embodiments, the counting of the serving cell indexes corresponding to the first PDSCH scheduled by the first DCI includes counting in an ascending order or a descending order of the serving cell indexes corresponding to the first PDSCH scheduled by the first DCI.

After determining the first PDSCH scheduled by the first DCI, for at least one first DCI, the network device counts according to an ascending or descending order of serving cell indexes corresponding to the first PDSCH scheduled by each first DCI in the at least one first DCI.

In one example, DCI1 schedules PDSCH1 and PDSCH2, DCI2 schedules PDSCH3 and PDSCH4, DCI2 counts C-DAI in DCI1 and C-DAI in DCI2 as 0 if the C-DAI in DCI1 and the C-DAI in DCI2 are counted in ascending order of the serving cell index corresponding to PDSCH1 and the serving cell index corresponding to PDSCH3, and DCI2 counts C-DAI in DCI1 and C-DAI in DCI2 as1 if the C-DAI in DCI1 and the C-DAI in DCI2 are counted in descending order of the serving cell index corresponding to PDSCH1 and the serving cell index corresponding to PDSCH3, respectively, if the serving cell index corresponding to PDSCH1 and the serving cell index corresponding to PDSCH3 are smaller than the serving cell index corresponding to PDSCH 3.

In some embodiments, the counting manner of the C-DAI in the at least one first DCI further includes:

at least one of the opportunity index and/or PDSCH reception time is counted in terms of PDCCH monitoring.

The PDCCH monitoring opportunity index may be understood as an index of monitoring opportunities of the PDCCH carrying the first DCI, representing a position of the first DCI in the time domain. In some embodiments, the PDCCH monitoring opportunity index indicates a slot in which a PDCCH carrying the first DCI is located.

The PDSCH reception time may be understood as a reception time of the PDSCH scheduled by the first DCI, and when the first DCI schedules the X PDSCHs, the PDSCH reception time corresponding to the first DCI may be understood as a start reception time or a reception end time of the first PDSCH.

Taking the counting mode of the C-DAI in the first DCI as an example according to the PDCCH monitoring opportunity index and the service cell index, firstly counting at least one first DCI according to the PDCCH monitoring opportunity index corresponding to each first DCI, and then counting according to the service cell indexes corresponding to the first DCIs.

In an example, as shown in fig. 17A, the terminal device receives DCI1 in time slot 1 and receives DCI2 and DCI3 in time slot 2, DCI1 is used for scheduling PDSCH2 on CC2, DCI2 is used for scheduling PDSCH1 on CC1 and PDSCH4 on CC4, DCI3 is used for scheduling PDSCH3 on CC3, if the first PDSCH corresponding to DCI2 is PDSCH1, the PDCCH monitoring opportunity index corresponding to DCI1 is smaller than the PDCCH monitoring opportunity index corresponding to DCI2 and DCI3, and the PDCCH monitoring opportunity indexes corresponding to DCI2 and DCI3 are the same, the C-DAI in DCI1 is 0, dcii 2 and DCI3 are counted according to the serving cell index, PDSCH1 scheduled by DCI2 is located on CC1, PDSCH3 scheduled by DCI3 is located on CC3, the C-DAI in DCI2 is 1, and the C-DAI in dcii 3 is 2.

Taking the counting mode of the C-DAI in the first DCI as an example according to the service cell index and the PDSCH receiving time count, at least one first DCI is counted according to the service cell index corresponding to each first DCI, and then the PDSCH receiving time count is carried out.

In an example, as shown in fig. 17B, the terminal device receives DCI1, DCI2 and DCI3 on time slot 1, DCI1 is used for scheduling PDSCH2 on CC2 and PDSCH3 on CC3, DCI2 is used for scheduling PDSCH1 on CC1 and PDSCH4 on CC4, DCI3 is used for scheduling PDSCH5 on CC3, if the first PDSCH corresponding to DCI1 is PDSCH2, the first PDSCH corresponding to DCI2 is PDSCH4, the first PDSCH corresponding to DCI1 is counted according to the serving cell index, the PDSCH2 scheduled by DCI1 is located on CC2, the PDSCH4 scheduled by DCI2 is located on CC4, the PDSCH5 scheduled by DCI3 is located on CC4, and the reception time of PDSCH4 is earlier than the reception time of PDSCH5, then C-DAI in DCI1 is 0, C-DAI in DCI2 is 1, and C-DAI in dcii 3 is 2.

Taking the counting mode of the C-DAI in the first DCI as an example according to the PDCCH monitoring opportunity index, the service cell index and the PDSCH receiving time count, firstly counting at least one first DCI according to the PDCCH monitoring opportunity index corresponding to each first DCI, counting the first DCIs with the same PDCCH monitoring opportunity index according to the service cell index count corresponding to the first DCIs, and counting the first DCIs with the same service cell index according to the corresponding PDSCH receiving time count.

In an example, as shown in fig. 17C, the terminal device receives DCI4 in slot 1, receives DCI1, DCI2 and DCI3 in slot 2, DCI1 is used for scheduling PDSCH2 on CC2 and PDSCH3 on CC3, DCI2 is used for scheduling PDSCH4 on CC4, DCI3 is used for scheduling PDSCH5 on CC3, DCI4 is used for scheduling PDSCH1 on CC1, if the first PDSCH corresponding to DCI1 is PDSCH2, the C-DAI in DCI4 is 0, then the PDSCH2 scheduled by DCI1 is located on CC2, the PDSCH4 scheduled by DCI2 is located on CC4, the PDSCH5 scheduled by DCI3 is located on CC4, at this time, based on the PDSCH reception time count, the reception time based on PDSCH4 is earlier than the reception time of PDSCH5, the C-DAI in DCI1 is 2, and the C-DAI in dcii 3 is 3.

In some embodiments, counting by serving cell index includes counting by serving cell index when the PDCCH monitoring opportunity index is the same.

Here, the C-DAI in the first DCI may be counted based on the PDCCH monitoring opportunity index, and if there is the first DCI with the same PDCCH monitoring opportunity, the first DCI with the same PDCCH monitoring opportunity may be counted based on the serving cell index corresponding to the first DCI.

In an example, as shown in fig. 17A, firstly, according to the counting of PDCCH monitoring opportunity indexes, the PDCCH monitoring opportunity index corresponding to DCI1 is smaller than the PDCCH monitoring opportunity indexes corresponding to DCI2 and DCI3, and the PDCCH monitoring opportunity indexes corresponding to DCI2 and DCI3 are the same, then C-DAI in DCI1 is 0, DCI2 and DCI3 count according to the serving cell index, PDSCH1 scheduled by DCI2 is located in CC1, PDSCH3 scheduled by DCI3 is located in CC3, then C-DAI in DCI2 is 1, and C-DAI in DCI3 is 2.

According to the wireless communication method provided by the embodiment of the application, when the PDCCH monitoring opportunity indexes are the same, counting is performed through the service cell indexes, the PDCCH monitoring opportunity indexes are preferentially taken as counting consideration, and based on the service cell indexes as counting consideration, the DCI monitoring opportunity has uniqueness, and the counting complexity can be reduced.

In some embodiments, the counting of the C-DAIs in the at least one first DCI further includes counting according to PDSCH reception time when { serving cell, PDCCH monitoring opportunity } is the same.

Here, when PDCCH monitoring opportunities are the same and serving cell indexes are the same, { serving cell, PDCCH monitoring opportunities } are the same, PDSCH reception time is counted.

In an example, as shown in fig. 17B, if the first PDSCH corresponding to DCI2 is PDSCH4, for DCI2 and DCI3, PDCCH monitoring opportunities of DCI2 and DCI3 are both slot 1, and the serving cell index is CC4, then { serving cell, PDCCH monitoring opportunities } of DCI2 and DCI3 are the same, at this time, according to the PDSCH reception time count scheduled by DCI2 and DCI3, the reception time of PDSCH4 scheduled by DCI2 is earlier than the reception time of PDSCH5 scheduled by DCI3, then C-DAI in DCI2 is smaller than C-DAI in DCI3, and based on the C-DAI in DCI1 being 0 according to the serving cell index count first, then C-DAI in DCI2 is 1, and C-DAI in dcii 3 is 2.

In the embodiment of the application, the C-DAI of each first DCI can be counted based on the PDCCH monitoring opportunity index, the first DCI with the same PDCCH monitoring opportunity is counted based on the corresponding serving cell index of the first DCI when the first DCI with the same PDCCH monitoring opportunity exists, and the receiving time is counted according to the PDSCH when the PDCCH monitoring opportunities are the same and the serving cell indexes are the same, namely { serving cells and the PDCCH monitoring opportunities } are the same.

According to the wireless communication method provided by the embodiment of the application, when the PDCCH monitoring opportunity index and the service cell index are the same, the PDCCH monitoring opportunity index and the service cell index are taken as counting consideration preferentially through counting by PDSCH receiving time, and the counting complexity can be reduced under the scene of scheduling a plurality of PDSCHs by one PDCI based on the PDSCH receiving time as counting consideration.

The wireless communication method provided by the embodiment of the application is further described below.

Example 1

The terminal equipment receives first DCI, wherein the first DCI is used for scheduling X PDSCH, the X PDSCH corresponds to X service cells, X is greater than or equal to 1, and the first DCI comprises C-DAI.

The terminal equipment determines the HARQ-ACK bit number M corresponding to the first DCI according to the following information:

The maximum number of cells Nmax that the first DCI can co-schedule;

The maximum number of codewords configured for each of all cells (assuming P cells) that can be scheduled by the first DCI, wherein the maximum number of codewords configured for the i-th cell is Ci, i=1, 2.

In some embodiments, M is the sum of the largest Nmax values in Ci.

In the embodiment of the application, the HARQ-ACK bit number corresponding to the first DCI is determined in a semi-static mode, the specific cells of the cells which can be co-scheduled by the first DCI are not required to be determined, and the number of the cells which can be co-scheduled is only required to be determined, so that the implementation is simpler.

In an example, the network configures SERVING CELL-6 total 6 serving cells for the terminal, where the 6 serving cells belong to the same PUCCH group. The set of cells which can be scheduled by the first DCI can be formed by a Cell combination (Cell combination) which can be scheduled by the first DCI comprises { Cell 1+cell 2}, { Cell 1+cell 2+cell 3} and { Cell 3+cell 4}, wherein the maximum number of cells which can be scheduled by the first Cell is 3, the set of cells which can be scheduled by the first DCI is { Cell 1, cell2, cell3, cell4}, the cells which can be scheduled by the first DCI comprise Cell 1, cell2, cell3 and Cell4, namely the cells which can be scheduled by the first DCI comprise 4 cells, the maximum number of code words C1-C4 corresponding to each Cell in the cells 1-Cell 4 is 1, 1-2, respectively, and the number of bits M of HARQ-ACK information corresponding to the first DCI is the sum of the maximum number of 3 in the cells C1-C4 is 1+2, namely 1+1-C4.

Example two

And the terminal equipment constructs a Type-2 HARQ-ACK codebook according to the C-DAI contained in the first DCI.

Wherein the serving cell index for the C-DAI count refers to:

In all SERVING CELL of the first DCI schedule, SERVING CELL index corresponding to a first PDSCH, where the first PDSCH is the earliest/latest PDSCH of the X PDSCHs, where the earliest/latest PDSCH may be measured by a starting time or an ending time of the PDSCH, where if there is more than one starting time or ending time of the PDSCH that is earliest/latest in the X PDSCHs, the first PDSCH is determined based on the following manner:

Mode 1, the first PDSCH is a corresponding SERVING CELL index minimum/maximum PDSCH of the more than one PDSCH.

Mode 2, the first PDSCH is a PDSCH with the largest/smallest number of symbols occupied by the PDSCH among the more than one PDSCH.

If the number of symbols occupied by the plurality of PDSCH is determined to be the largest/smallest based on the method 2, the first PDSCH is determined in the method 1.

In an example, as shown in fig. 17D, the network device sends DCI1 and DCI2 in slot 1, DCI1 is used for scheduling PDSCH2 on cell 2 and PDSCH3 on cell 3, DCI2 is used for scheduling PDSCH1 on cell 1 and PDSCH4 on cell 4, counted by SERVING CELL index corresponding to LAST PDSCH in all SERVING CELL of the first DCI schedule, LAST PDSCH is the same as the end time of PDSCH, and further determined in mode 1 or mode 2, if determined in mode 1 with SERVING CELL index minimum, PDSCH1 is the first PDSCH of DCI2, the serving cell index of DCI2 is CC1, and if determined in mode two with the largest number of symbols occupied by PDSCH, PDSCH1 is the first PDSCH of DCI2, and the serving cell index of PDSCH2 is CC1. The end time of PDSCH2 and PDSCH3 scheduled by DCI1 in fig. 11 is the same, and is further determined in either mode 1 or mode 2, and if mode 1 is determined to be the smallest by SERVING CELL index, PDSCH2 is determined to be the first PDSCH of DCI1 and the serving cell index of DCI1 is determined to be CC2, and if mode two is determined to be the largest by the number of symbols occupied by PDSCH, PDSCH2 is determined to be the first PDSCH of DCI1 and the serving cell index of DCI1 is determined to be CC2. The value of the C-DAI contained in DCI2 is smaller than that of the C-DAI contained in DCI 1.

In this embodiment, the first PDSCH is determined based on the start time or the end time corresponding to each PDSCH in the plurality of PDSCHs scheduled by the first DCI, and the serving cell index corresponding to the first PDSCH is used as the serving cell index corresponding to the first DCI, so that the serving cell index corresponding to the first DCI is determined by the start time or the end time corresponding to the PDSCH that characterizes the transmission time of the PDSCH, a manner of determining SERVING CELL index by the transmission time of the PDSCH is provided, and the maximum probability of selection of the first PDSCH (the reference PDSCH corresponding to the C-DAI count to a certain extent) is consistent with the selection of the reference PDSCH in the HARQ-ACK TIMING determination. However, unlike the HARQ-ACK TIMING determination, in the HARQ-ACK TIMING determination, if the end symbol of more than one PDSCH is the same, it is not necessary to determine one PDSCH from among the more than one PDSCH as the reference PDSCH, because the time slot in which the determined HARQ-ACK is located is the same regardless of which one of the more than one PDSCH is the reference PDSCH, but in the C-DAI counting, it is not necessary that the reference PDSCH selected by the C-DAI counting is unique, so that a unique reference cell can be corresponding to the reference PDSCH, if there is more than one PDSCH, then more than one PDSCH corresponds to more than one cell index, and finally, the situation that the C-DAI ordering cannot be performed is required, so that the further determination according to the mode 1/2 is required.

In the wireless communication method provided by the embodiment of the application, the concepts of the cell and the carrier and the component carrier are the same and can be replaced with each other.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application. For example, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further. As another example, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which should also be regarded as the disclosure of the present application. For example, on the premise of no conflict, the embodiments described in the present application and/or technical features in the embodiments may be combined with any other embodiments in the prior art, and the technical solutions obtained after combination should also fall into the protection scope of the present application.

It should be further understood that, in the various method embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Furthermore, in the embodiment of the present application, the terms "downstream", "upstream" and "sidestream" are used to indicate a transmission direction of signals or data, where "downstream" is used to indicate that the transmission direction of signals or data is a first direction from a station to a user equipment of a cell, and "upstream" is used to indicate that the transmission direction of signals or data is a second direction from the user equipment of the cell to the station, and "sidestream" is used to indicate that the transmission direction of signals or data is a third direction from the user equipment 1 to the user equipment 2. For example, "downstream signal" means that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, which means that three relationships may exist. Specifically, A and/or B may represent three cases where A alone exists, while A and B exist, and B alone exists. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Fig. 18 is a schematic structural diagram of a wireless communication apparatus according to an embodiment of the present application, which is applied to a terminal device, and as shown in fig. 18, the wireless communication apparatus 1800 includes:

The first communication unit 1801 is configured to receive at least one first downlink control information DCI sent by a network device, where the first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, and the number of bits of HARQ-ACK information corresponding to the first DCI in a HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, where the first number is the maximum number of cells that the first DCI can jointly schedule, and the at least one codeword number includes the maximum number of codewords corresponding to each cell in cells that the first DCI can schedule.

It may be appreciated that the wireless communication apparatus 1800 may further include a first processing unit configured to determine a number of bits of HARQ-ACK information corresponding to the first DCI in a HARQ-ACK codebook based on at least one of a first number and a maximum number of codewords corresponding to each of cells that the first DCI can schedule, where the first number is a maximum number of cells that the first DCI can jointly schedule.

It may be appreciated that the first processing unit is further configured to construct an HARQ-ACK codebook based on the number of bits of HARQ-ACK information corresponding to the first DCI.

In some embodiments, the number of bits of HARQ-ACK information corresponding to the first DCI is determined based on the first number and the at least one maximum number of codewords.

In some embodiments, the determining the number of bits of the HARQ-ACK information corresponding to the first DCI includes at least one of:

Determining, based on the first number and a first maximum number of codewords, the first maximum number of codewords being a maximum of the at least one maximum number of codewords;

and determining based on N maximum code word numbers in the at least one maximum code word number, wherein the value of N is the value of the first number.

In some embodiments, in a case where the number of bits of HARQ-ACK information corresponding to the first DCI is determined based on the N maximum numbers of codewords, the number of bits of HARQ-ACK information corresponding to the first DCI is a sum of the N maximum numbers of codewords.

In some embodiments, the HARQ-ACK codebook is a type 2 HARQ-ACK codebook.

Counting according to the index of the service cell.

In some embodiments, the counting according to the serving cell index includes:

And counting according to a serving cell index corresponding to a first PDSCH scheduled by the first DCI, wherein the first PDSCH is one of X PDSCH scheduled by the first DCI.

among the X PDSCH scheduled by the first DCI, a start time is earliest;

Among the X PDSCH scheduled by the first DCI, a start time is the latest;

Among the X PDSCH scheduled by the first DCI, the end time is earliest;

among the X PDSCH scheduled by the first DCI, the end time is the latest.

In some embodiments, if the PDSCH of the X PDSCHs that satisfies the first condition includes at least two PDSCHs, the first PDSCH is one of the at least two PDSCHs.

In some embodiments, the first PDSCH further satisfies at least one of:

In some embodiments, the second condition includes one of:

the number of occupied symbols is the least;

The number of occupied symbols is the largest.

In some embodiments, the third condition comprises one of:

The serving cell index is the smallest;

The serving cell index is the largest.

In some embodiments, the serving cell index count corresponding to the first PDSCH scheduled according to the first DCI includes:

Counting according to the ascending order or descending order of the serving cell index corresponding to the first PDSCH scheduled by the first DCI.

In some embodiments, the counting according to the serving cell index includes:

And counting according to the index of the service cell when the indexes of the PDCCH monitoring opportunities are the same.

When { serving cell, PDCCH monitoring opportunity } is the same, PDSCH reception time is counted.

Fig. 19 is a schematic structural diagram of a wireless communication apparatus according to an embodiment of the present application, which is applied to a network device, as shown in fig. 19, the wireless communication apparatus 1900 includes:

The second communication unit 1901 is configured to send at least one first downlink control information DCI to the terminal device, where the first DCI is used for scheduling X physical downlink shared channels PDSCH, X is a positive integer greater than or equal to 1, and the number of bits of HARQ-ACK information corresponding to the first DCI in the HARQ-ACK codebook is determined based on at least one of a first number and at least one maximum codeword number, where the first number is the maximum number of cells that the first DCI can jointly schedule, and the at least one maximum codeword number includes the maximum number of codewords corresponding to each cell in the cells that the first DCI can schedule.

It may be appreciated that the wireless communication apparatus 1800 may further include a second processing unit configured to determine the number of bits of HARQ-ACK information corresponding to the first DCI based on at least one of a first number and a maximum number of codewords corresponding to each of the cells that the first DCI can schedule, where the first number is the maximum number of cells that the first DCI can jointly schedule.

It may be appreciated that the second communication unit 1901 receives the HARQ-ACK codebook sent by the terminal device, and the second processing unit is further configured to parse the received HARQ-ACK codebook.

Determining, based on the first number and a first maximum number of codewords, the first maximum number of codewords being a maximum value of the at least one;

In some embodiments, the HARQ-ACK codebook is a type 2 HARQ-ACK codebook.

Counting according to the index of the service cell.

In some embodiments, the counting according to the serving cell index includes:

And counting according to a serving cell index corresponding to a first PDSCH scheduled by the first DCI, wherein the first PDSCH is one of the X PDSCHs.

among the X PDSCH scheduled by the first DCI, a start time is earliest;

Among the X PDSCH scheduled by the first DCI, a start time is the latest;

Among the X PDSCH scheduled by the first DCI, the end time is earliest;

among the X PDSCH scheduled by the first DCI, the end time is the latest.

In some embodiments, the first PDSCH further satisfies at least one of:

In some embodiments, the second condition includes one of:

the number of occupied symbols is the least;

The number of occupied symbols is the largest.

In some embodiments, the third condition comprises one of:

The serving cell index is the smallest;

The serving cell index is the largest.

In some embodiments, the counting according to the serving cell index includes:

It should be understood by those skilled in the art that the above description of the terminal device or the network device according to the embodiment of the present application may be understood with reference to the description of the wireless communication method according to the embodiment of the present application.

Fig. 20 is a schematic block diagram of a communication device 2000 according to an embodiment of the present application. The communication device may be a terminal device or a network device. The communication device 2000 illustrated in fig. 20 includes a processor 2010, from which the processor 2010 may call and run computer programs to implement the methods in embodiments of the present application.

Optionally, as shown in fig. 20, the communication device 2000 may also include a memory 2020. Wherein the processor 2010 may invoke and run a computer program from the memory 2020 to implement the method in embodiments of the present application.

Wherein the memory 2020 may be a separate device from the processor 2010 or may be integrated in the processor 2010.

Optionally, as shown in fig. 20, the communication device 2000 may further include a transceiver 2030, and the processor 2010 may control the transceiver 2030 to communicate with other devices, and in particular, may send information or data to other devices or receive information or data sent by other devices.

Among other things, the transceiver 2030 may include a transmitter and a receiver. The transceiver 2030 may further include antennas, the number of which may be one or more.

Optionally, the communication device 2000 may be specifically a network device according to the embodiment of the present application, and the communication device 2000 may implement a corresponding flow implemented by the network device in each method according to the embodiment of the present application, which is not described herein for brevity. At this time, the transceiver 2030 may be implemented as the first communication unit 1801, and the processor 2010 may be implemented as the first processing unit.

Optionally, the communication device 2000 may be specifically a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 2000 may implement corresponding processes implemented by the mobile terminal/terminal device in each method according to the embodiment of the present application, which are not described herein for brevity. At this time, the transceiver 2030 may be implemented as the second communication unit 1901, and the processor 2010 may be implemented as the second processing unit.

Fig. 21 is a schematic structural view of a chip of an embodiment of the present application. The chip 2100 shown in fig. 21 includes a processor 2110, and the processor 2110 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Alternatively, as shown in fig. 21, the chip 2100 may further include a memory 2120. Wherein the processor 2110 may invoke and run a computer program from the memory 2120 to implement the method in the embodiments of the present application.

The memory 2120 may be a separate device from the processor 2110, or may be integrated into the processor 2110.

Optionally, the chip 2100 may further include an input interface 2130. The processor 2110 may control the input interface 2130 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 2100 may further include an output interface 2140. Wherein the processor 2110 may control the output interface 2140 to communicate with other devices or chips, in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 22 is a schematic block diagram of a communication system 2200 provided by an embodiment of the application. As shown in fig. 22, the communication system 2200 includes a terminal device 2210 and a network device 2220.

The terminal device 2210 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 2220 may be used to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. 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 (DIGITAL SIGNAL Processor, DSP), an Application SPECIFIC INTEGRATED Circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. 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 PROM (EPROM), an Electrically Erasable 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 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 appreciated that the above memory is exemplary and not limiting, and for example, the memory in the embodiments of the present application may be 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 connection dynamic random access memory (SYNCH LINK DRAM, SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

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. The storage medium includes a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

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

A wireless communication method, the method comprising:

The terminal device receives at least one first downlink control information DCI sent by the network device, where the first DCI is used to schedule X physical downlink shared channels PDSCH, where X is a positive integer greater than or equal to 1;

The number of bits of the hybrid automatic repeat request confirmation HARQ-ACK information corresponding to the first DCI in the HARQ-ACK codebook is determined based on at least one of the following: a first number and at least one maximum number of codewords, the first number being the maximum number of cells that can be jointly scheduled by the first DCI, and the at least one number of codewords including the maximum number of codewords corresponding to each cell in the cells that can be scheduled by the first DCI.

The method according to claim 1, wherein the number of bits of the HARQ-ACK information corresponding to the first DCI is determined based on the first number and the at least one maximum number of codewords.

The method according to claim 2, wherein a method for determining the number of bits of the HARQ-ACK information corresponding to the first DCI includes at least one of the following:

Determined based on the first number and a first maximum number of codewords, the first maximum number of codewords being a maximum value among the at least one maximum number of codewords;

The value of N is determined based on N maximum codeword numbers among the at least one maximum codeword number, and the value of N is the value of the first number.

The method according to claim 3, wherein the values of the N maximum codeword numbers are greater than or equal to the values of other maximum codeword numbers other than the N maximum codeword numbers in the at least one maximum codeword number.

The method according to claim 3 or 4, wherein, when the number of bits of the HARQ-ACK information corresponding to the first DCI is determined based on the N maximum number of codewords, the number of bits of the HARQ-ACK information corresponding to the first DCI is the sum of the N maximum number of codewords.

The method according to any one of claims 1 to 5, wherein the HARQ-ACK codebook is a type 2 HARQ-ACK codebook.

The method according to any one of claims 1 to 6, wherein the first DCI includes a counter-downlink allocation index C-DAI, and in the at least one first DCI, the C-DAI included in each first DCI is used to construct a type 2 HARQ-ACK codebook.

The method according to claim 7, wherein the counting method of the C-DAI in the at least one first DCI comprises:

Count by serving cell index.

The method according to claim 8, wherein the counting according to the serving cell index comprises:

According to the serving cell index count corresponding to the first PDSCH scheduled by the first DCI, the first PDSCH is one of the X PDSCHs.

The method according to claim 9, wherein the first PDSCH satisfies one of the following first conditions:

Among the X PDSCHs scheduled by the first DCI, the starting time is the earliest;

Among the X PDSCHs scheduled by the first DCI, the starting time is the latest;

Among the X PDSCHs scheduled by the first DCI, the end time is the earliest;

Among the X PDSCHs scheduled by the first DCI, the end time is the latest.

The method according to claim 10, wherein if the PDSCHs satisfying the first condition among the X PDSCHs include at least two PDSCHs, the first PDSCH is one of the at least two PDSCHs.

The method according to claim 11, wherein the first PDSCH further satisfies at least one of the following:

A second condition, wherein the second condition is determined based on the number of symbols occupied by the PDSCH;

The third condition is determined based on the serving cell index corresponding to the PDSCH.

The method according to claim 12, wherein the second condition comprises one of the following:

Occupies the least number of symbols;

Occupies the largest number of symbols.

The method according to claim 12 or 13, wherein the third condition comprises one of the following:

The serving cell index is the smallest;

The serving cell index is the largest.

The method according to any one of claims 9 to 14, wherein the serving cell index count corresponding to the first PDSCH scheduled by the first DCI comprises:

Count in ascending or descending order of the serving cell index corresponding to the first PDSCH scheduled by the first DCI.

The method according to any one of claims 8 to 15, wherein the counting method of the C-DAI in the at least one first DCI further comprises:

The count is performed according to at least one of a PDCCH monitoring opportunity index and/or a PDSCH reception time.

The method according to any one of claims 8 to 16, wherein the counting according to the serving cell index comprises:

When the PDCCH monitoring opportunity indexes are the same, they are counted according to the serving cell index.

The method according to any one of claims 8 to 17, wherein the counting method of the C-DAI in the at least one first DCI further comprises:

When {serving cell, PDCCH monitoring opportunity} is the same, the PDSCH reception time is counted.

A wireless communication method, the method comprising:

The network device sends at least one first downlink control information DCI to the terminal device, where the first DCI is used to schedule X physical downlink shared channels PDSCH, where X is a positive integer greater than or equal to 1;

The number of bits of the hybrid automatic repeat request confirmation HARQ-ACK information corresponding to the first DCI in the HARQ-ACK codebook is determined based on at least one of the following: a first number and at least one maximum number of codewords, the first number being the maximum number of cells that can be jointly scheduled by the first DCI, and the at least one maximum number of codewords including the maximum number of codewords corresponding to each cell in the cells that can be scheduled by the first DCI.

The method according to claim 19, wherein the number of bits of the HARQ-ACK information corresponding to the first DCI is determined based on the first number and the at least one maximum number of codewords.

The method according to claim 20, wherein the manner of determining the number of bits of the HARQ-ACK information corresponding to the first DCI includes at least one of the following:

The method according to claim 21, wherein the values of the N maximum codeword numbers are greater than or equal to the values of other maximum codeword numbers other than the N maximum codeword numbers in the at least one maximum codeword number.

The method according to claim 21 or 22, wherein, when the number of bits of the HARQ-ACK information corresponding to the first DCI is determined based on the N maximum number of codewords, the number of bits of the HARQ-ACK information corresponding to the first DCI is the sum of the N maximum number of codewords.

The method according to any one of claims 19 to 23, wherein the HARQ-ACK codebook is a type 2 HARQ-ACK codebook.

The method according to any one of claims 19 to 24, wherein the first DCI includes a counter-downlink allocation index C-DAI, and in the at least one first DCI, the C-DAI included in each first DCI is used to construct a type 2 HARQ-ACK codebook.

The method according to claim 25, wherein the counting method of the C-DAI in the at least one first DCI comprises:

Count by serving cell index.

The method according to claim 26, wherein the counting according to the serving cell index comprises:

The method according to claim 27, wherein the first PDSCH satisfies one of the following first conditions:

Among the X PDSCHs scheduled by the first DCI, the starting time is the latest;

Among the X PDSCHs scheduled by the first DCI, the end time is the earliest;

Among the X PDSCHs scheduled by the first DCI, the end time is the latest.

The method according to claim 28, wherein if the PDSCHs satisfying the first condition among the X PDSCHs include at least two PDSCHs, the first PDSCH is one of the at least two PDSCHs.

The method according to claim 29, wherein the first PDSCH further satisfies at least one of the following:

The method according to claim 30, wherein the second condition comprises one of the following:

Occupies the least number of symbols;

Occupies the largest number of symbols.

The method according to claim 30 or 31, wherein the third condition comprises one of the following:

The serving cell index is the smallest;

The serving cell index is the largest.

The method according to any one of claims 27 to 32, wherein the serving cell index count corresponding to the first PDSCH scheduled according to the first DCI comprises:

The method according to any one of claims 26 to 33, wherein the counting method of the C-DAI in the at least one first DCI further comprises:

The method according to any one of claims 26 to 34, wherein the counting according to the serving cell index comprises:

The method according to any one of claims 26 to 35, wherein the counting method of the C-DAI in the at least one first DCI further comprises:

A wireless communication device, comprising:

A first communication unit is configured to receive at least one first downlink control information DCI sent by a network device, where the first DCI is used to schedule X physical downlink shared channels PDSCH, where X is a positive integer greater than or equal to 1; wherein the number of bits of the hybrid automatic repeat request confirmation HARQ-ACK information corresponding to the first DCI in the HARQ-ACK codebook is determined based on at least one of the following: a first number and at least one maximum number of codewords, the first number being the maximum number of cells that can be jointly scheduled by the first DCI, and the at least one maximum number of codewords including the maximum number of codewords corresponding to each cell in the cells that can be scheduled by the first DCI.

A wireless communication device, comprising:

The second communication unit is configured to send at least one first downlink control information DCI to the terminal device, where the first DCI is used to schedule X physical downlink shared channels PDSCH, where X is a positive integer greater than or equal to 1; wherein the number of bits of the hybrid automatic repeat request confirmation HARQ-ACK information corresponding to the first DCI in the HARQ-ACK codebook is determined based on at least one of the following: a first number and at least one maximum number of codewords, the first number being the maximum number of cells that can be jointly scheduled by the first DCI, and the at least one maximum number of codewords including the maximum number of codewords corresponding to each cell in the cells that can be scheduled by the first DCI.

A terminal device comprises: a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 1 to 18.

A network device comprises: a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method as described in any one of claims 19 to 36.

A chip comprises: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 18.

A chip comprises: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 19 to 36.

A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 18.

A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 19 to 36.

A computer program product comprises computer program instructions, wherein the computer program instructions enable a computer to execute the method according to any one of claims 1 to 18.

A computer program product comprising computer program instructions, the computer program instructions causing a computer to execute the method as claimed in any one of claims 19 to 36.

A computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 18.

A computer program, the computer program causing a computer to execute the method according to any one of claims 19 to 36.