WO2023010579A1

WO2023010579A1 - Feedback method and apparatus for harq-ack codebook, and communication device

Info

Publication number: WO2023010579A1
Application number: PCT/CN2021/111350
Authority: WO
Inventors: 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-09
Also published as: CN117356064A

Abstract

Embodiments of the present application provide a feedback method and apparatus for a HARQ-ACK codebook, and a communication device. The method comprises: a first device determining a first HARQ-ACK codebook, the first HARQ-ACK codebook comprising HARQ-ACK information corresponding to a candidate physical channel reception opportunity on a time unit in a first time unit group, the time unit in the first time unit group corresponding to a first feedback time unit; and the first device sending the first HARQ-ACK codebook to a second device by means of a feedback resource on the first feedback time unit, the first device being configured with a first control information format, a maximum number of physical channels scheduled by the first control information format being M, and M being greater than or equal to 2.

Description

A HARQ-ACK codebook feedback method and device, and communication equipment

technical field

The embodiment of the present application relates to the technical field of mobile communication, and specifically relates to a hybrid automatic repeat-request acknowledgment (Hybrid Automatic Repeat-reQuest Acknowledgment, HARQ-ACK) codebook feedback method and device, and communication equipment.

Background technique

For a terminal device with downlink services, the network device can schedule the transmission of the Physical Downlink Shared Channel (PDSCH) for the terminal device by carrying the downlink control information (Downlink Control Information, DCI) of the downlink authorization. Wherein, the downlink authorization DCI includes indication information of physical uplink control channel (Physical Uplink Control Channel, PUCCH) resources, and after receiving the PDSCH, the terminal device will decode the PDSCH (acknowledgment, ACK) or negative acknowledgment (Negative Acknowledgment, NACK) information) is fed back to the network device through the PUCCH resource. However, after introducing a scheduling method in which one DCI schedules multiple PDSCHs, how to feed back the decoding result is a technical problem that needs to be solved.

Contents of the invention

Embodiments of the present application provide a method and device for feeding back a HARQ-ACK codebook, and a communication device.

The feedback method of the HARQ-ACK codebook provided in the embodiment of the present application includes:

The first device determines the first HARQ-ACK codebook, the first HARQ-ACK codebook includes the HARQ-ACK information corresponding to the candidate physical channel receiver opportunity on the time unit in the first time unit group, the first time unit The time unit in the unit group corresponds to the first feedback time unit;

The first device sends the first HARQ-ACK codebook to the second device through the feedback resource in the first feedback time unit;

Wherein, the first device is configured with a first control information format, the maximum number of physical channels scheduled by the first control information format is M, and the M is greater than or equal to 2.

The second device receives the first HARQ-ACK codebook sent by the first device through the feedback resource on the first feedback time unit;

The second device determines, according to the first HARQ-ACK codebook, that a physical channel on a time unit in the first time unit group receives corresponding HARQ-ACK information;

Wherein, the first HARQ-ACK codebook includes the HARQ-ACK information corresponding to the candidate physical channel receivers on the time units in the first time unit group, and the time units in the first time unit group correspond to the The first feedback time unit;

The HARQ-ACK codebook feedback apparatus provided in the embodiment of the present application is applied to the first device, including:

The first determination unit is configured to determine a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes HARQ-ACK information corresponding to candidate physical channel receiver opportunities on time units in the first time unit group, the The time unit in the first time unit group corresponds to the first feedback time unit;

a sending unit configured to send the first HARQ-ACK codebook to the second device through the feedback resource in the first feedback time unit;

The HARQ-ACK codebook feedback device provided in the embodiment of the present application is applied to the second device, including:

The receiving unit is configured to receive the first HARQ-ACK codebook sent by the first device through the feedback resource on the first feedback time unit;

The second determining unit is configured to determine, according to the first HARQ-ACK codebook, the corresponding HARQ-ACK information received by the physical channel on the time unit in the first time unit group;

The communication device provided in the embodiment of the present application may be the first device in the above solution or the second device in the above solution, and the communication device includes a processor and a memory. 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 above-mentioned feedback method of the HARQ-ACK codebook.

The chip provided by the embodiment of the present application is used to realize the above-mentioned feedback method of the HARQ-ACK codebook.

Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the above-mentioned feedback method of the HARQ-ACK codebook.

The computer-readable storage medium provided by the embodiment of the present application is used for storing a computer program, and the computer program enables the computer to execute the above-mentioned HARQ-ACK codebook feedback method.

The computer program product provided by the embodiment of the present application includes computer program instructions, and the computer program instructions cause the computer to execute the above-mentioned method for feedbacking the HARQ-ACK codebook.

The computer program provided by the embodiment of the present application, when running on a computer, enables the computer to execute the above HARQ-ACK codebook feedback method.

Through the above technical solution, when multiple physical channels are scheduled for one control information format, the decoding result can be fed back correctly, and the problem of inconsistent understanding of the HARQ-ACK codebook by the network device and the terminal device can be avoided.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

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

FIG. 2 is an optional schematic diagram of scheduling a PDSCH according to an embodiment of the present application;

FIG. 3 is an optional schematic diagram of scheduling a PDSCH according to an embodiment of the present application;

FIG. 4 is an optional flowchart of a feedback method of a HARQ-ACK codebook according to an embodiment of the present application;

FIG. 5 is an optional flowchart of a feedback method of a HARQ-ACK codebook according to an embodiment of the present application;

FIG. 6 is a schematic flowchart of an optional HARQ-ACK codebook feedback method according to an embodiment of the present application;

FIG. 7 is an optional schematic diagram of a candidate physical channel receiving opportunity in an embodiment of the present application;

FIG. 8 is an optional schematic diagram of a candidate physical channel receiving opportunity in an embodiment of the present application;

FIG. 9 is an optional schematic diagram of a candidate physical channel receiving opportunity in an embodiment of the present application;

FIG. 10 is a schematic structural diagram of an optional HARQ-ACK codebook feedback device according to an embodiment of the present application;

FIG. 11 is a schematic diagram of an optional structure of an apparatus for feedbacking a HARQ-ACK codebook according to an embodiment of the present application;

Fig. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present application;

Fig. 14 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

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

As shown in FIG. 1 , a communication system 100 may include a terminal device 110 and a network device 120 . The network device 120 may communicate with the terminal device 110 through an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120 .

It should be understood that the embodiment of the present application is only described by using the communication system 100 as an example, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, broadband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD) , Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE- U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, Internet of Things (Internet of Things, IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Network (Wireless Local Area Networks, WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

In the communication system 100 shown in FIG. 1 , the network device 120 may be an access network device that communicates with the terminal device 110 . The access network device can provide communication coverage for a specific geographical area, and can communicate with terminal devices 110 (such as UEs) located in 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 (NG RAN) device, Either a base station (gNB) in the NR system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable Devices, hubs, switches, bridges, routers, or network devices in the future evolution of the Public Land Mobile Network (Public Land Mobile Network, PLMN), etc.

The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wirelessly.

For example, the terminal equipment 110 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, user agent, or user device. Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, IoT devices, satellite handheld terminals, Wireless Local Loop (WLL) stations, Personal Digital Assistant , PDA), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolution networks, etc.

The terminal device 110 can be used for device-to-device (Device to Device, D2D) communication.

The wireless communication system 100 may also include a core network device 130 that communicates with the base station. The core network device 130 may be a 5G core network (5G Core, 5GC) device, for example, Access and Mobility Management Function (Access and Mobility Management Function , AMF), and for example, authentication server function (Authentication Server Function, AUSF), and for example, user plane function (User Plane Function, UPF), and for example, session management function (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 data gateway (Session Management Function+Core Packet Gateway, SMF+PGW- C) equipment. It should be understood that SMF+PGW-C can realize the functions of SMF and PGW-C at the same time. In the process of network evolution, the above-mentioned core network equipment may be called by other names, or a new network entity may be formed by dividing functions of the core network, which is not limited in this embodiment of the present application.

Various functional units in the communication system 100 may also establish a connection through a next generation network (next generation, NG) interface to implement communication.

For example, the terminal device establishes an air interface connection with the access network device through the NR interface to transmit user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); access Network equipment such as the next generation wireless access base station (gNB), can establish a user plane data connection with UPF through NG interface 3 (abbreviated as N3); access network equipment can establish control plane signaling with AMF through NG interface 2 (abbreviated as N2) connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (abbreviated as N4); UPF can exchange user plane data with the data network through NG interface 6 (abbreviated as N6); AMF can communicate with SMF through NG interface 11 (abbreviated as N11) The SMF establishes a control plane signaling connection; the SMF may establish a control plane signaling connection with the PCF through an NG interface 7 (N7 for short).

Figure 1 exemplarily shows a base station, a core network device, and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include other numbers of terminals within the coverage area. The device is not limited in the embodiment of this application.

It should be noted that FIG. 1 is only an illustration of a system applicable to this application, and of course, the method shown in the embodiment of this application may also be applicable to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation. It should also be understood that the "correspondence" mentioned in the embodiments of the present application may mean that there is a direct correspondence or an indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated. , configuration and configured relationship. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be used by pre-saving corresponding codes, tables or other It is implemented by indicating related information, and this application does not limit the specific implementation. For example, pre-defined may refer to defined in the protocol. It should also be understood that in the embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, and this application does not limit this .

In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described below. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and all of them belong to the embodiments of the present application. protected range.

High Frequency Correlation Background

With the evolution of the NR system, the research of the NR system may include new frequency bands, such as 52.6GHz-71GHz or 71GHz-114.25GHz. The new frequency band may include licensed spectrum or unlicensed spectrum. In other words, the new frequency band includes dedicated spectrum and shared spectrum.

The unlicensed spectrum is the spectrum allocated by the country and region that can be used for radio device communication. This spectrum is usually considered a shared spectrum, that is, communication devices in different communication systems can be used as long as they meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for a dedicated spectrum authorization from the government.

In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist friendly on this spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, the communication device follows the "Listen Before Talk (LBT)" principle, or in other words, the communication device needs to perform a channel access process. That is, before a communication device transmits a signal on an unlicensed spectrum channel, it needs to perform channel sensing (sensing). Only when the channel monitoring is successful, the communication device can perform signal transmission; The channel monitoring fails, and the communication device cannot send signals.

● Channel monitoring success: also called LBT success or channel monitoring idle. For example, the energy detection performed on the channel in the listening time slot is lower than the energy detection threshold.

● Channel listening failure: also called LBT failure or channel listening busy. For example, the energy detection performed on the channel in the listening time slot is higher than or equal to the energy detection threshold.

The subcarrier spacing considered in the new frequency band may be larger than the subcarrier spacing supported by the existing NR system. The current candidate subcarrier spacing includes at least one of the following: 240kHz, 480kHz, 960kHz, 1.92MHz, 3.84MHz. As an example, the corresponding parameter sets (Numerology) under some candidate subcarrier spacings are shown in Table 1.

Table 1. Examples of parameter sets corresponding to candidate subcarrier spacing in the FRX frequency band

子载波间隔subcarrier spacing	符号长度symbol length	NCP长度NCP length	ECP长度ECP length	符号带NCP长度Symbol with NCP length	时隙长度slot length
240kHz240kHz	4.16μs4.16μs	0.2902μs0.2902μs	1.04μs1.04μs	4.452μs4.452μs	62.5μs62.5μs
480kHz480kHz	2.08μs2.08μs	0.146μs0.146μs	0.52μs0.52μs	2.226μs2.226μs	31.25μs31.25μs
960kHz960kHz	1.04μs1.04μs	0.073μs0.073μs	0.26μs0.26μs	1.113μs1.113μs	15.625μs15.625μs

Semi-static Codebook Feedback in NR Systems

For a terminal device with downlink services, the network device can schedule the transmission of the PDSCH for the terminal device through the downlink grant DCI. Wherein, the downlink grant DCI includes PUCCH resource indication information, and after receiving the PDSCH, the terminal equipment feeds back the decoding result (ACK or NACK information) of the PDSCH to the network equipment through the PUCCH resource. Wherein, the NR system supports dynamic determination of the HARQ feedback timing. The network device schedules the terminal device to receive the PDSCH through the DCI, where the DCI includes indication information of the PUCCH resource used to transmit the HARQ-ACK corresponding to the PDSCH.

The instructions can include:

PUCCH resource indicator (PUCCH resource indicator): used to determine PUCCH resources;

●HARQ feedback timing indicator (PDSCH-to-HARQ_feedback timing indicator): used to dynamically determine the time domain position of the HARQ feedback resource, such as the time slot of the HARQ feedback resource, usually represented by K1.

The HARQ feedback timing indication is used to indicate the value in the HARQ feedback timing set. Wherein, the HARQ feedback timing set may be preset or configured by the network device, and the HARQ feedback timing set includes at least one K1 value.

If only one K1 value is included in the HARQ feedback timing set, the HARQ feedback timing indication may not be included in the DCI, and the time domain position of the HARQ feedback resource is determined according to the K1 value in the HARQ feedback timing set.

As an example, the HARQ feedback timing set is preset, and the preset value is {1, 2, 3, 4, 5, 6, 7, 8}. The HARQ feedback timing indication information includes 3 bits, and the 3-bit indication information is mapped to the 8 values one by one. Specifically, when the HARQ feedback timing indication information is 000, it means K1=1; when the HARQ feedback timing indication information is 001, it means K1=2, and so on. Optionally, in this case, the DCI format corresponding to the DCI is a fallback DCI format such as DCI format 1_0.

As another example, the HARQ feedback timing set configured by the network device includes 4 values, and the HARQ feedback timing indication information includes 2 bits. When the HARQ feedback timing indication information is 00, it indicates the first value in the HARQ feedback timing set; when the HARQ feedback timing indication information is 01, it indicates the second value in the HARQ feedback timing set, and so on. Wherein, if the HARQ feedback timing set includes invalid K1 (for example, the corresponding K1 value is -1), when the HARQ feedback timing indication information indicates the invalid K1, it means that the time slot where the PUCCH resource is located is temporarily uncertain. Optionally, the HARQ feedback timing set is configured by the network device, and the DCI format corresponding to the DCI is a non-fallback DCI format such as DCI format 1_1 or DCI format 1_2. The number of bits included in the HARQ feedback timing indication information in the DCI is determined according to the number of values included in the HARQ feedback timing set.

When the terminal device performs HARQ-ACK feedback, it includes semi-static codebook feedback such as Type-1 HARQ-ACK codebook feedback or Type-3 HARQ-ACK codebook feedback and dynamic codebook feedback such as Type-2 or eType-2 HARQ- ACK codebook feedback.

If the terminal device is configured with Type-1 HARQ-ACK codebook feedback, the Type-1 HARQ-ACK codebook includes HARQ-ACK information corresponding to a candidate PDSCH receiver within the HARQ-ACK feedback window.

In Type-1 HARQ-ACK codebook feedback, for a PDSCH without repeated transmission, if the terminal device receives the PDSCH on time slot n, the terminal device should feed back the HARQ-ACK corresponding to the PDSCH on time slot n+k Information; for the PDSCH with the number of repeated transmissions R, if the terminal device receives the PDSCH from time slot n-R+1 to time slot n, the terminal device should feed back the HARQ-ACK corresponding to the PDSCH on time slot n+k Information; if the terminal device receives the DCI for releasing the semi-persistent scheduling (Semi-Persistent Scheduling, SPS) PDSCH configuration on time slot n, the terminal device should feed back the ACK information corresponding to the DCI on time slot n+k. Wherein, for the PDSCH repeatedly transmitted in multiple time slots, the time slot n+k is based on the last time slot in the multiple time slots as a reference. The time slot n+k can be regarded as a feedback time slot, and k is determined according to the K1 value in the HARQ feedback timing set. If the terminal device needs to feed back the HARQ-ACK information corresponding to the PDSCH in other feedback time slots other than the time slot n+k, the HARQ-ACK information corresponding to the PDSCH is set as NACK information.

One feedback slot corresponds to a group of candidate PDSCH receiving opportunities included in one HARQ-ACK feedback window. The group of candidate PDSCH receiving opportunities is determined according to the K1 value in the HARQ feedback timing set and the time domain resource assignment (Time domain resource assignment, TDRA) table. If the terminal equipment receives the scheduling of at least part of the PDSCH (including the scheduled PDSCH and/or SPS PDSCH) in a group of candidate PDSCH receiving opportunities, and the feedback time slot corresponding to the at least part of the PDSCH is the feedback time slot, then in the feedback The HARQ-ACK codebook transmitted on the time slot includes the HARQ-ACK information corresponding to at least part of the PDSCH, for example, at the position corresponding to the at least part of the PDSCH in the Type-1 HARQ-ACK codebook transmitted on the feedback time slot Feedback the corresponding HARQ-ACK information. For the unscheduled candidate PDSCH receiving opportunity or the PDSCH not indicated to be fed back through the feedback slot, the corresponding position in the Type-1 HARQ-ACK codebook transmitted on the feedback slot is set as NACK information.

A feedback time slot corresponds to a group of candidate PDSCH receiver opportunities within a HARQ-ACK feedback window, which is determined according to the K1 value in the HARQ feedback timing set and the TDRA table. Specifically, the K1 value is used to determine at least one downlink time slot corresponding to a candidate PDSCH receiver opportunity, and the TDRA table is used to determine the number of candidate PDSCH receiver opportunities corresponding to one downlink time slot. If the terminal device does not indicate the ability to receive multiple unicast PDSCHs within one time slot, one downlink time slot corresponds to one candidate PDSCH receiving opportunity.

As an example, the TDRA table includes N rows, and each row corresponds to a Start and Length Indicators (SLIV) value. If at least one of the symbols corresponding to the PDSCH indicated by the SLIV corresponding to a certain row in the TDRA table is an uplink symbol when the downlink slot is associated, the row is considered to correspond to invalid scheduling, that is, the row is not used to determine the candidate PDSCH Receive opportunities. In the rows corresponding to the effective scheduling included in the TDRA table, first determine the symbol index m1 of the end symbol corresponding to the row corresponding to the earliest end symbol position of the candidate PDSCH receiving opportunity according to the SLIV value corresponding to each row, that is, m1 is the effective scheduling row The smallest symbol index value in the corresponding end symbol, the number of candidate PDSCH receivers corresponding to the downlink slot plus one, and the rows corresponding to the candidate PDSCH receivers whose symbol index value is less than or equal to m1 all correspond to the same Candidate PDSCH receivers; then, in the TDRA table, exclude the rows corresponding to the candidate PDSCH receivers whose symbol index values of all the start symbols are less than or equal to m1, in the remaining rows corresponding to effective scheduling included in the TDRA table, and then Determine the symbol index m2 of the end symbol corresponding to the row with the earliest end symbol position of the candidate PDSCH receiving opportunity according to the SLIV value corresponding to each row, and repeat the above process until all rows in the TDRA table are traversed.

As an example and not a limitation, the TDRA table includes 3 rows of SLIV: SLIV1, SLIV2, and SLIV3. Assuming that for a PUCCH feedback slot, the 3 rows of SLIV correspond to a downlink slot (for example, the slot does not include uplink symbols), then the All 3 lines of SLIV are valid SLIV. It is assumed that SLIV1 schedules symbols 2-5, SLIV2 schedules symbols 3-6, and SLIV3 schedules symbols 7-13. The earliest end symbol position in the above three lines of SLIV is SLIV1, and the corresponding symbol index m1 is symbol 5, that is, the number of candidate PDSCH receiving opportunities corresponding to the downlink time slot is 1; then judge the start symbol of SLIV2, and the number of SLIV2 The starting symbol is symbol 3, before symbol 5, so SLIV2 and SLIV1 correspond to the same candidate PDSCH receiving opportunities (that is, because some symbols of SLIV1 and SLIV2 overlap, the network device will only schedule one of them at a time); for the remaining SLIV (ie SLIV3), repeat the above process, the earliest end symbol position is SLIV3, the corresponding symbol index m2 is symbol 13, the number of candidate PDSCH receiving opportunities corresponding to the downlink time slot is increased by 1, that is, the candidate PDSCH receiving opportunities corresponding to the downlink time slot The number is 2, that is, in this example, the downlink time slot corresponding to the PUCCH feedback time slot corresponds to 2 candidate PDSCH receiving opportunities.

Optionally, rows in the TDRA table may be associated with candidate PDSCH receiver opportunities or associated with SPS PDSCH releases.

Figure 2 shows an example of Type-1 HARQ-ACK codebook feedback. Assuming that the HARQ feedback timing set configured by the network device includes 4 values, namely {2, 3, 4, 5}, the HARQ-ACK feedback window corresponding to the feedback time slot n includes time slot n-5, time slot n- 4. Timeslot n-3 and timeslot n-2, the HARQ-ACK feedback window corresponding to feedback timeslot n+1 includes timeslot n-4, timeslot n-3, timeslot n-2 and timeslot n- 1. Assuming that the terminal device does not indicate the ability to receive multiple unicast PDSCHs in one time slot, one downlink time slot corresponds to one candidate PDSCH receiving opportunity.

As shown in Figure 2, if K1 in the DCI received by the terminal device on time slot n-5 indicates 5 and the DCI schedules PDSCH1; K1 in the DCI received on time slot n-3 indicates 3 and the DCI Scheduling PDSCH2; K1 in the DCI received on time slot n-2 indicates 3 and the DCI schedules PDSCH3; K1 in the DCI received on time slot n-1 indicates 2 and the DCI schedules PDSCH4, then the terminal device The decoding results of PDSCH1 and PDSCH2 are fed back on time slot n, and the decoding results of PDSCH3 and PDSCH4 are fed back on time slot n+1.

Assuming that a PDSCH corresponds to 1-bit HARQ-ACK information, the HARQ-ACK codebook transmitted on PUCCH1 on slot n is shown in Table 2:

Table 2, HARQ-ACK codebook example

时隙n-5slot n-5	时隙n-4slot n-4	时隙n-3slot n-3	时隙n-2time slot n-2
PDSCH1的译码结果Decoding result of PDSCH1	NACKNACK	PDSCH2的译码结果Decoding result of PDSCH2	NACKNACK

The HARQ-ACK codebook transmitted on PUCCH2 on slot n+1 is shown in Table 3:

Table 3, HARQ-ACK codebook example

时隙n-4slot n-4	时隙n-3slot n-3	时隙n-2time slot n-2	时隙n-1time slot n-1
NACKNACK	NACKNACK	PDSCH3的译码结果Decoding result of PDSCH3	PDSCH4的译码结果Decoding result of PDSCH4

One DCI schedules multiple downlink transmissions

In high-frequency systems, each time slot occupies a shorter length of time due to the larger spacing between subcarriers. If the method of PDSCH scheduling for each time slot in the low-frequency system is continued, the terminal equipment will be required to detect the PDCCH in each time slot, thus requiring the terminal equipment to have strong processing capabilities. In order to reduce the processing capacity requirements of the terminal equipment, it may be considered to introduce a scheduling mode in which one DCI schedules multiple physical channels.

Taking downlink transmission as an example, the network device can use one DCI to schedule at least two physical channels such as PDSCH transmission, or use one DCI to activate at least two downlink resources for at least two physical channel transmissions (wherein, the at least two downlink resources can be belong to the same SPS resource configuration, or may belong to different SPS resource configurations). The at least two physical channels include a first physical channel and a second physical channel. The first physical channel and the second physical channel may be used to transmit different transport blocks (Transport Block, TB).

As shown in Figure 3, the network device can use DCI0 to schedule 4 PDSCH transmissions, the 4 PDSCHs include PDSCH0, PDSCH1, PDSCH2 and PDSCH3, and PDSCH0, PDSCH1, PDSCH2 and PDSCH3 are used to transmit different TBs respectively.

When a terminal device may be configured with one DCI to schedule multiple physical channels, the number of bits corresponding to each physical channel is different from the number of bits corresponding to each physical channel when one DCI schedules one physical channel. For example, when a terminal device is configured with one DCI to schedule multiple physical channels, the maximum number of TB or maximum number of bits corresponding to each physical channel is 1, and when one DCI schedules one physical channel, the maximum number of TB or maximum number of bits corresponding to each physical channel for 2. For another example, when a terminal device is configured with one DCI to schedule multiple physical channels, each physical channel is fed back by TB, and when one DCI is scheduled to schedule one physical channel, each physical channel is fed back by a Code Block Group (CBG).

In a high-frequency system, if a DCI is introduced to schedule multiple physical channels, and the multiple physical channels are used to transmit different TBs, the terminal device may be configured with time-domain bonding feedback, or the terminal device may The number of bits corresponding to each physical channel when one DCI is configured to schedule multiple physical channels is different from the number of bits corresponding to each physical channel when one DCI is configured to schedule one physical channel. In these cases, if the terminal device is configured with a semi-static codebook, how to determine the semi-static HARQ-ACK codebook is a problem that needs to be solved.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific examples. As optional solutions, the above related technologies may be combined with the technical solutions of the embodiments of the present application in any combination, and all of them belong to the protection scope of the embodiments of the present application. The embodiment of the present application includes at least part of the following content.

An optional processing flow of the HARQ-ACK codebook feedback method provided in the embodiment of the present application is applied to the first device, as shown in FIG. 4 , including the following steps:

S401. The first device determines a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes HARQ-ACK information corresponding to candidate physical channel receiver opportunities on time units in the first time unit group. The time units in a time unit group correspond to the first feedback time unit.

S402. The first device sends the first HARQ-ACK codebook to the second device through the feedback resource in the first feedback time unit;

An optional processing flow of the HARQ-ACK codebook feedback method provided in the embodiment of the present application is applied to the second device, as shown in FIG. 5 , including the following steps:

S501. The second device receives the first HARQ-ACK codebook sent by the first device through the feedback resource in the first feedback time unit;

S502. The second device determines, according to the first HARQ-ACK codebook, the HARQ-ACK information corresponding to the physical channel on the time unit in the first time unit group;

An optional processing flow of the HARQ-ACK codebook feedback method provided in the embodiment of the present application is applied to a communication system including the first device and the second device, as shown in FIG. 6 , including the following steps:

S601. The first device determines a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes HARQ-ACK information corresponding to candidate physical channel receiver opportunities on time units in the first time unit group. The time units in a time unit group correspond to the first feedback time unit.

S602. The first device sends the first HARQ-ACK codebook to the second device by using the feedback resource in the first feedback time unit.

S603. The second device determines, according to the first HARQ-ACK codebook, the HARQ-ACK information corresponding to the physical channel on the time unit in the first time unit group.

In this embodiment of the present application, the time unit may be understood as one of time slots, symbols, sub-slots, sub-frames, milliseconds, seconds, and the like. Here, in order to clearly describe the solution of the present application, in the following description, the time unit is taken as an example to describe the feedback method of the HARQ-ACK codebook of the present application.

The terminal device of the first device is configured with the first control information format, and the maximum number of physical channels that can be scheduled by the first control information format is M, that is, M is the maximum number of physical channels that can be scheduled by the first control information format. Optionally, the first control information format is used to schedule transmission of at least two physical channels, or to activate at least two resources, where the activated at least two resources are used to transmit at least two physical channels.

Optionally, the first device is a terminal, the second device is a network device, the first control information format is DCI format, the physical channel scheduled by the first control information format is PDSCH, and correspondingly, the candidate physical channel receiving opportunity is a candidate PDSCH receiving opportunity Chance.

Optionally, the first device is a first terminal, the second device is a second terminal, the first control information format is a sidelink control information format, and the physical channel scheduled by the first control information format is a physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH), the candidate physical channel receiver opportunity is the candidate PSSCH receiver opportunity.

Optionally, the first device is a terminal, the second device is a network device, the first control information format is used to activate at least two downlink resources, and the activated at least two downlink resources are used to transmit at least two PDSCHs.

Optionally, the first device is a first terminal, the second device is a second terminal, the first control information format is used to activate at least two sidelink resources, and the activated at least two sidelink resources are used to transmit at least two PSSCH .

In case the first control information format is used to activate at least two resources, the at least two resources belong to the same or different SPS resource configurations.

In some embodiments, when the subcarrier spacing (Subcarrier Spacing, SCS) corresponding to the physical channel transmission is 960 kHz, M is 8.

In some embodiments, when the SCS corresponding to the physical channel transmission is 480 kHz, M is 4.

In some embodiments, the value of M is determined according to the TDRA table. For example, the value of M is determined according to the row corresponding to the largest number of SLIVs in the TDRA table, or the value of M is equal to the number of SLIVs in the row corresponding to the largest number of SLIVs in the TDRA table.

In an example, M is 4, then the first device can detect the first control information format that schedules the following number of physical channels: 4, 3, 2 or 1.

Taking M=4 as an example, the physical channels that can be scheduled by the first control information format supported by the first device may include: physical channel 1, physical channel 2, physical channel 3, and physical channel 4.

Optionally, the number of SLIVs in each SLIV row in the TDRA table is less than or equal to M. Wherein, different SLIVs are used to indicate different candidate physical channel receiving opportunities.

In an example, assume that the SLIV corresponding to each row of the TDRA table is as follows:

Line 1: SLIV1-1, SLIV1-2, SLIV1-3, SLIV1-4;

Line 2: SLIV2-1, SLIV2-2;

Line 3: SLIV3-1; then M is 4 in this example.

In the embodiment of the present application, the multiple physical channels scheduled by the first control information format are continuous or discontinuous in the time domain.

In the embodiment of the present application, different feedback time units correspond to different HARQ-ACK codebooks.

The first device determines the HARQ-ACK codebook corresponding to the feedback time unit, and sends the HARQ-ACK codebook corresponding to the feedback time unit to the second device through the feedback resource on the feedback time unit. Here, the HARQ-ACK codebook corresponding to the first feedback time unit is referred to as the first HARQ-ACK codebook, and the first feedback time unit is any feedback time unit.

The first HARQ-ACK codebook fed back at the first feedback time unit includes the HARQ-ACK information corresponding to the candidate physical channel receivers on the time units in the first time unit group corresponding to the first feedback time unit.

The time unit group corresponding to the first feedback time unit is the first time unit group, and the first time unit group may be understood as a HARQ-ACK feedback window or time unit corresponding to the first feedback time unit.

Optionally, the first device is a terminal, the second device is a network device, the feedback resources in the first feedback time unit are PUCCH resources or PUSCH resources, and the first time unit group is a downlink time unit corresponding to the first feedback time unit.

Optionally, the first device is a first terminal, the second device is a second terminal, the feedback resource on the first feedback time unit is a physical sidelink feedback channel (Physical sidelink feedback channel, PSFCH) resource, and the first time unit group is the side travel time unit corresponding to the first feedback time unit.

Optionally, the time units in the first time unit group are continuous.

In an example, the first feedback time unit is time slot n, and the time units in the first time unit group corresponding to time slot n include: time slot n-5, time slot n-4, time slot n-3, and time slot n-5. Gap n-2.

Optionally, the time units in the first time unit group are discontinuous.

In an example, the first feedback time unit is time slot n, and time units in the first time unit group corresponding to time slot n include: time slot n-5, time slot n-4, and time slot n-2.

The candidate physical channel receiving opportunity in the time unit can be understood as the opportunity that the second device may transmit the physical channel in the time unit, that is, the candidate physical channel transmission opportunity, or the opportunity that the first device may receive the physical channel on the physical channel, that is, Candidate physical channel receiver opportunities.

In this embodiment of the present application, one time unit includes one or more candidate physical channel receiving opportunities. Optionally, one time unit includes a candidate physical channel receiver opportunity, then the HARQ-ACK information corresponding to the time unit in the first HARQ-ACK codebook is the HARQ-ACK information corresponding to the candidate physical channel receiver opportunity. Optionally, when a time unit includes multiple candidate physical channel receiver opportunities, the HARQ-ACK information corresponding to the time unit in the first HARQ-ACK codebook is the multiple candidate physical channel receiver opportunities HARQ-ACK information corresponding to one or more candidate physical signal receivers. Optionally, when a time unit includes a candidate physical channel receiver opportunity, the number of feedback bits of the HARQ-ACK information corresponding to the time unit, and when a time unit includes multiple candidate physical channel receiver opportunities, The number of feedback bits of the HARQ-ACK information corresponding to the time unit is the same. Optionally, when a time unit includes a candidate physical channel receiver opportunity, the number of feedback bits of the HARQ-ACK information corresponding to the candidate physical channel receiver opportunity is different from that of multiple candidate physical channel receiver opportunities included in a time unit In some cases, the number of feedback bits of the HARQ-ACK information corresponding to each candidate physical channel receiver among the plurality of candidate physical channel receivers is the same.

In an example, the first time unit group corresponding to the first feedback time unit includes time units: time slot 1, time slot 2, and time slot 3, where the candidate physical channel receiver opportunities on time slot 1 include receiver opportunity 1 and time slot 3. Receiver opportunity 2, the candidate physical channel receiver opportunity on time slot 2 includes receiver opportunity 3, the candidate physical channel receiver opportunity on time slot 3 includes receiver opportunity 4 and receiver opportunity 5, and the first HARQ-ACK codebook includes: receiver opportunity 1 Corresponding HARQ-ACK information, HARQ-ACK information corresponding to receiver opportunity 2, HARQ-ACK information corresponding to receiver opportunity 3, HARQ-ACK information corresponding to receiver opportunity 4, and HARQ-ACK information corresponding to receiver opportunity 5. In another example, the first time unit group corresponding to the first feedback time unit includes time units: time slot 1, time slot 2, and time slot 3, wherein the candidate physical channel receiver opportunities on time slot 1 include receiver opportunity 1 and receiver opportunity 2, the candidate physical channel receiver opportunity on time slot 2 includes receiver opportunity 3, the candidate physical channel receiver opportunity on time slot 3 includes receiver opportunity 4 and receiver opportunity 5, and the first HARQ-ACK codebook includes: receiver opportunity The HARQ-ACK information corresponding to 1 and the HARQ-ACK information corresponding to receiver 2 are bundled, the HARQ-ACK information corresponding to receiver 3 is bound, the HARQ-ACK information corresponding to receiver 4 is corresponding to receiver 5 The HARQ-ACK information after binding the HARQ-ACK information. Wherein, the number of feedback bits of the HARQ-ACK information corresponding to each of the time slot 1, the time slot 2 and the time slot 3 is the same.

The first HARQ-ACK codebook received by the second device from the first device includes HARQ-ACK information corresponding to candidate physical channel receivers on time units in the first time unit group. According to the first HARQ-ACK codebook, the second device determines the corresponding HARQ-ACK information received by the physical channel on the time unit in the first time unit group, where the physical channel reception schedules the physical channel received by the first device for the second device .

In some embodiments, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to at least one of the following:

Information 1. The number of feedback bits corresponding to a candidate physical channel receiver in the first time unit group;

Information 2, the number of feedback bits corresponding to a candidate physical channel receiver on a time unit in the first time unit group;

Information 3, the number of candidate physical channel receiver opportunities in a time unit in the first time unit group.

In an example, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to information 1.

In an example, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to information 2.

In an example, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to information 3 .

In an example, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to information 2 and information 3 .

In an example, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to information 1, information 2, and information 3.

In the embodiment of the present application, the number of feedback bits corresponding to the first HARQ-ACK codebook may be determined according to one or more of information 1, information 2, and information 3 and other information.

Taking the number of feedback bits corresponding to the first HARQ-ACK codebook as determined according to information 1 as an example, the first HARQ-ACK codebook includes HARQ-ACK information corresponding to each candidate physical channel receiver opportunity.

Optionally, the numbers of feedback bits corresponding to different candidate physical channel receivers are the same or different.

In an example, the number of feedback bits corresponding to a candidate physical channel receiver is 1, and when the first time unit group includes 5 candidate physical channel receivers, the number of feedback bits corresponding to the first HARQ-ACK codebook is 5.

In an example, the first time unit group includes: one candidate physical channel receiver opportunity 1 and two candidate physical channel receiver opportunities 2, wherein the number of feedback bits corresponding to one candidate physical channel receiver opportunity 1 is 1, and one The number of feedback bits corresponding to candidate physical channel receiver opportunity 2 is 2, and the number of feedback bits corresponding to the first HARQ-ACK codebook is 5.

Taking the number of feedback bits corresponding to the first HARQ-ACK codebook as an example determined according to the information 2, the information 2 represents the number of feedback bits corresponding to any candidate physical channel receiving opportunity in a time unit.

Optionally, the number of feedback bits corresponding to different candidate physical channel receivers in one time unit is the same or different.

In an example, assuming that the first device does not have the ability to receive multiple physical channels within one time unit, the number of feedback bits corresponding to one physical channel receiver in one time unit is 1, and the first time unit group includes 3 time units , then the number of feedback bits corresponding to the first HARQ-ACK codebook is 3.

Optionally, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to the number of feedback bits corresponding to a candidate physical channel receiver on a time unit and the number of time units included in the first time unit group.

In an example, the first time unit group includes two time units, wherein each time unit includes a candidate physical channel receiver opportunity, and the number of feedback bits corresponding to each candidate physical channel receiver opportunity is 1, then the first HARQ- The number of feedback bits in the ACK codebook is 2.

Taking the number of feedback bits corresponding to the first HARQ-ACK codebook determined according to information 2 and information 3 as an example, the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to the number of feedback bits corresponding to one time unit, and one time unit corresponds to The number of feedback bits is determined according to the number of feedback bits corresponding to a candidate physical channel receiver in a time unit and the number of candidate physical channel receivers in a time unit.

In an example, the first time unit group includes two time units, wherein each time unit includes two candidate physical channel receiver opportunities, and the number of feedback bits corresponding to each candidate physical channel receiver opportunity is 1, then each time unit The number of feedback bits corresponding to the unit is 2, and the number of bits of the HARQ-ACK information in the first HARQ-ACK codebook is 4.

In an example, the first time unit group includes two time units, and the time is determined according to the number of candidate physical channel receivers in one time unit and the number of feedback bits corresponding to each candidate physical channel receiver in the time unit The number of feedback bits N1 corresponding to a unit, according to the number of candidate physical channel receivers on another time unit and the number of feedback bits corresponding to each candidate physical channel receiver on this time unit, determine the number of feedback bits N2 corresponding to this time unit, Then the number of feedback bits corresponding to the first HARQ-ACK codebook is N1+N2.

For example, the first time unit group is the first time slot group, and the first time slot group includes two time slots, one of which includes two candidate physical channel receiver opportunities, and the feedback bit corresponding to each candidate physical channel receiver opportunity number is 1, another time slot includes a candidate physical channel receiver opportunity, and the number of feedback bits corresponding to the candidate physical channel receiver opportunity is 4, then the number of feedback bits corresponding to the two time slots are 2 and 4 respectively, the first The number of feedback bits in one HARQ-ACK codebook is 6.

In some embodiments, the first candidate physical channel receiver in the first time unit group corresponds to the first number of feedback bits, and the first candidate physical channel receiver schedules a physical channel corresponding to the first control information format the circumstances of receipt; and/or,

The second candidate physical channel receivers in the first time unit group correspond to the second number of feedback bits, and the second candidate physical channel receivers correspond to the situation that the first control information format schedules reception of at least two physical channels.

In the embodiment of the present application, the candidate physical channel receivers on the first time unit group may include at least one of the following:

The first candidate physical channel receiver will schedule a physical channel corresponding to the first control information format;

The second candidate physical channel receiver may schedule at least two physical channels corresponding to the first control information format.

In an example, the candidate physical channel receiver opportunities in one time unit include one or more first candidate physical channel receiver opportunities.

In an example, the candidate physical channel receiver opportunities in one time unit include one or more second candidate physical channel receiver opportunities.

In an example, the candidate physical channel receiver opportunities in one time unit include one or more first candidate physical channel receiver opportunities and one or more second candidate physical channel receiver opportunities.

The number of feedback bits corresponding to the first candidate physical channel receiver is the first number Y of feedback bits.

In an example, one row in the TDRA table corresponds to one SLIV, and the candidate physical channel receiver opportunity corresponding to the SLIV is the first candidate physical channel receiver opportunity.

As shown in FIG. 7 , the first control information corresponding to the row of SLIV2-1 in the TDRA table schedules a physical channel, and the candidate physical channel receiver opportunity corresponding to SLIV2-1 is the first candidate physical channel receiver opportunity. Wherein, here it is assumed that SLIV2-1 is the SLIV included in the second SLIV row, and SLIV1-1 and SLIV1-2 are the SLIVs included in the first SLIV row.

The number of feedback bits corresponding to the second candidate physical channel receiver is the second number X of feedback bits.

In an example, one SLIV row in the TDRA table includes four SLIVs, and the candidate physical channel receiver opportunity corresponding to any SLIV among the four SLIVs is the second candidate physical channel receiver opportunity.

As shown in Figure 8, SLIV1-1, SLIV1-2, SLIV1-3, and SLIV1-4 are scheduled for the same first control information, that is, the first control information schedules 4 physical channels, then SLIV1-1, SLIV1-2, The candidate physical channel receiver opportunity corresponding to any one of SLIV1-3 and SLIV1-4 is the second candidate physical channel receiver opportunity.

In some embodiments, the number of feedback bits corresponding to a candidate physical channel receiver on a time unit in the first time unit group includes at least one of the following situations:

Case 1. The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group includes the first candidate physical channel receiver opportunity and the second candidate physical channel receiver opportunity, and one of the time unit receiver opportunities The number of feedback bits corresponding to the candidate physical channel receiver is the larger value of the first number of feedback bits and the second number of feedback bits;

Case 2: The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the first candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the first feedback bit number;

Case 3: The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the second candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the second feedback bit number.

For case 1, when the candidate physical channel receiver opportunity corresponding to a time unit includes the first candidate physical channel receiver opportunity and the second candidate physical channel receiver opportunity, the number of bits of a candidate physical channel receiver opportunity corresponding to the time unit is X and Larger value of Y.

For case 2, when the candidate physical channel receiver opportunity corresponding to a time unit includes the first candidate physical channel receiver opportunity, the number of bits of a candidate physical channel receiver opportunity corresponding to the time unit is Y.

For case 3, when the candidate physical channel receiver opportunity corresponding to a time unit includes the second candidate physical channel receiver opportunity, the number of bits of a candidate physical channel receiver opportunity corresponding to the time unit is X.

In the example shown in Figure 7, the time unit group corresponding to time slot n, namely the time slot group, includes: time slot n-6, time slot n-5, time slot n-3, time slot n-2, SLIV1-1 and The physical channel corresponding to SLIV1-2 can be scheduled by the same first control information, and the physical channel corresponding to SLIV2-1 can be scheduled by another first control information, then the time slot n-6 includes a second candidate physical channel receiving opportunity , time slot n-5 includes a second candidate physical channel receiver opportunity and a first candidate physical channel receiver opportunity, time slot n-3 includes a second candidate physical channel receiver opportunity, and time slot n-2 includes a The second candidate physical channel receiver opportunity and one first candidate physical channel receiver opportunity, then the HARQ-ACK codebook on the slot n includes the slot n-6, slot n-5, slot n-4, slot Table 4 shows the number of feedback bits corresponding to n-3 and time slot n-2.

Table 4, HARQ-ACK codebook example

In some embodiments, a candidate physical channel receiver on a first time unit in the first time unit group corresponds to the first number of feedback bits; and/or,

One candidate physical channel receiver on the second time unit in the first time unit group corresponds to the second number of feedback bits.

The first time unit includes a time unit whose time domain offset from the first feedback time unit is the first time domain offset, where the first time domain offset is a plurality of physical The time domain offset between the time unit of the last physical channel in the channel and the first feedback time unit, that is, the time unit of the last physical channel among the multiple physical channels scheduled for a first control information format in the first time unit unit of time. The second time unit is a time unit other than the first time unit in the first time unit group.

In the example shown in FIG. 7, the first feedback time slot is time slot n, assuming that the K1 value in the HARQ feedback timing set includes {2, 5}, then the first time domain offset is {2, 5}, When the first time domain offset is 2, the first time unit is time slot n-2; when the first time domain offset is 5, the first time unit is n-5, then in the feedback time slot n Among the time units {time slot n-6, time slot n-5, time slot n-3, time slot n-2} included in the corresponding time unit group, the first time unit includes: time slot n-2 and time slot Slot n-5, the second time unit includes: time slot n-3 and time slot n-6.

In some embodiments, for the first time unit, the number of feedback bits corresponding to one candidate physical channel receiver is the first number Y of feedback bits. For the second time unit, the number of feedback bits corresponding to one candidate physical channel receiver is the second number X of feedback bits.

In some embodiments, the first number of feedback bits is determined according to at least one of the following situations:

The first number of feedback bits is determined according to the feedback length of the transport block TB;

The first number of feedback bits is determined according to the code block group CBG feedback length;

In a case where spatial domain bundling feedback is configured, the first number of feedback bits is 1.

Optionally, the first number of feedback bits is determined according to at least one of the following situations:

The first number of feedback bits is determined according to the corresponding TB feedback length when scheduling a physical channel in the first control information format;

The first number of feedback bits is determined according to the corresponding CBG feedback length when a physical channel is scheduled in the first control information format.

Optionally, when the first device is not configured with CBG feedback or the first device is configured with TB feedback, the first number of feedback bits is the TB feedback length (that is, the configured maximum number of TBs). Optionally, the TB feedback length is the corresponding TB feedback length when the first control information format schedules a physical channel.

For example, when the first device receives the first control information corresponding to the first control information format and schedules a physical channel, the corresponding maximum number of TBs is 2, and the first number of feedback bits is 2.

Optionally, when the first device is configured with CBG feedback, the first number of feedback bits is TB feedback length*CBG feedback length (that is, the configured maximum number of TBs*the configured maximum number of CBGs). Optionally, the TB feedback length is the corresponding TB feedback length when the first control information format schedules a physical channel, and the CBG feedback length is the corresponding CBG feedback length when the first control information format schedules a physical channel.

For example, when the first device receives the first control information corresponding to the first control information format to schedule a physical channel, the corresponding maximum number of TBs is 2, the maximum number of CBGs is 4, and the first number of feedback bits is 8.

In some embodiments, the second number of feedback bits is determined according to at least one of the following situations:

The second number of feedback bits is determined according to the feedback length of the transport block TB;

The second feedback bit number is 1;

In the case of configured airspace bundling feedback, the second feedback bit number is 1;

In a case where time-domain bundling feedback is configured, the second number of feedback bits is 1.

Optionally, the second number of feedback bits is determined according to the TB feedback length corresponding to each physical channel when the first control information format schedules multiple physical channels.

In the embodiment of the present application, the spatial domain bundling feedback can be understood as the bundling of HARQ-ACK information of two codewords. Only the HARQ-ACK information corresponding to the two codewords is ACK, and the waiting The feedback information is ACK; if the HARQ-ACK information of any one of the two codewords is NACK, the information to be fed back after the two codewords are bundled is NACK. If only one codeword is scheduled, for another unscheduled codeword, it is assumed that its corresponding HARQ-ACK information is ACK.

In the embodiment of the present application, the time-domain bundling feedback can be understood as the HARQ-ACK information bundling of N candidate physical channel receivers, and only the HARQ-ACK information corresponding to the N candidate physical channel receivers is ACK, then the N The information to be fed back after the bundling of candidate physical channel receivers is ACK; if the HARQ-ACK information of any one of the N candidate physical channel receivers is NACK, the N candidate physical channel receivers are bound The determined feedback information is NACK. N is a positive integer greater than or equal to 2.

Optionally, when the first device is configured with airspace binding feedback, perform airspace binding feedback.

Optionally, when the first device is configured with time-domain bundling feedback, it performs time-domain bundling feedback.

Optionally, for a candidate physical channel receiver that is scheduled for physical channel reception, the HARQ-ACK information corresponding to the candidate physical channel receiver is decoding information after the corresponding physical channel is received.

Optionally, for a candidate physical channel receiver that is not received by the scheduled physical channel, the HARQ-ACK information corresponding to the candidate physical channel receiver is ACK.

Optionally, N is predefined, or N is determined according to configuration parameters of network devices such as time domain bonding feedback parameters.

Optionally, the N candidate physical channel receivers correspond to one candidate physical channel receiver scheduled by the first control information format.

Optionally, the N candidate physical channel receiver opportunities are consecutive N candidate physical channel receiver opportunities among the candidate physical channel receiver opportunities included in the first time unit group.

Optionally, if the HARQ-ACK information of N candidate physical channel receivers is bundled and fed back, the position of the information to be fed back in the first HARQ-ACK codebook is at least one of the N candidate physical channel receivers The position of the feedback information corresponding to the candidate physical channel receiver in the first HARQ-ACK codebook.

Optionally, if the HARQ-ACK information of N candidate physical channel receivers is bundled and fed back, the position of the information to be fed back in the first HARQ-ACK codebook is one of the N candidate physical channel receivers The position of the feedback information corresponding to the physical channel receiver in the first HARQ-ACK codebook. Further optionally, the position of the information to be fed back in the first HARQ-ACK codebook is the feedback information corresponding to the last or first candidate physical channel receiver among the N candidate physical channel receivers in the first HARQ-ACK codebook. - position in the ACK codebook.

The second feedback bit number is a bit number corresponding to a second candidate physical channel receiver. Optionally, the number of bits corresponding to a second candidate physical channel receiver is 1, and the second feedback bit number is 1.

In some embodiments, the first number of feedback bits and the second number of feedback bits are different.

In an example, the first feedback bit number is 2, and the second feedback bit number is 1. In yet another example, the first feedback bit number is 1, and the second feedback bit number is 2. In this embodiment of the present application, there may be no limitation on the sizes of the first feedback bit number and the second feedback bit number.

In some embodiments, the first number of feedback bits is greater than or equal to the second number of feedback bits.

In an example, the first feedback bit number is 2, and the second feedback bit number is 1. In yet another example, the first feedback bit number is 4, and the second feedback bit number is 1.

At this time, when a time unit includes the first candidate physical channel receiver opportunity and the second candidate physical channel receiver opportunity, the feedback bit number of a candidate physical channel receiver opportunity in the time unit is the first feedback bit number.

In some embodiments, the time units in the first time unit group are determined according to at least one of the following:

Factor 1, HARQ feedback timing set;

Factor 2, time domain resource allocation TDRA table;

Factor 3. At least one line of symbol start length in the TDRA table indicates SLIV, wherein one SLIV corresponds to one candidate physical channel receiving opportunity.

In an example, the time units in the first time unit group are determined according to the HARQ feedback timing set.

In an example, the time units in the first time unit group are determined according to a TDRA table.

In an example, the time units in the first time unit group are determined according to the HARQ feedback timing set, TDRA.

In an example, the time units in the first time unit group are determined according to at least one row of symbol start length indication SLIV in the TDRA table.

For factor 1, the HARQ feedback timing set includes at least one piece of HARQ feedback timing indication information.

For factor 2, the TDRA table includes at least one SLIV row, wherein the number of SLIVs included in one SLIV row is less than or equal to M.

For factor 2, the TDRA table includes indication information indicating the time domain offset of the interval between receiving opportunities of different candidate physical channels scheduled by the same DCI. Optionally, the indication information indicates a time domain offset between the DCI and its scheduled candidate physical channel receiving opportunity. Optionally, the indication information indicates the time domain offset between the first candidate physical channel receiver opportunity and each candidate physical channel receiver opportunity scheduled by the same DCI.

Taking the determination of the time unit in the first time unit group according to factor 1 and factor 2, that is, the time unit in the first time unit group is determined according to the HARQ feedback timing set and the TDRA table as an example, the first feedback is determined according to TDRA The time unit for the candidate physical channel receiving opportunity, according to the HARQ feedback timing set, determines the time between the time unit corresponding to the last candidate physical channel receiving opportunity among the multiple candidate physical channel receiving opportunities scheduled by the same DCI and the first feedback time unit time interval, so as to determine the time units included in the first time unit group.

In one example, as shown in FIG. 7, the TDRA table includes two rows of SLIV, the first row of SLIV includes: SLIV1-1 and SLIV1-2, corresponding to continuous slot scheduling, and the second row of SLIV includes: SLIV2-1, HARQ feedback The time series set includes {2, 5}, then the time units in the first time unit group include: time slot n-6, time slot n-5, time slot n-3 and time slot n-2.

In one example, as shown in Figure 8, the TDRA table includes two rows of SLIV, the first row of SLIV includes: SLIV1-1, SLIV1-2, SLIV1-3 and SLIV1-4, corresponding to continuous slot scheduling, the second row of SLIV Including: SLIV2-1, the HARQ feedback timing set includes {2, 4}, then the time units in the first time unit group include: time slot n-7, time slot n-6, time slot n-5, time slot n-4, slot n-3, and slot n-2.

In one example, as shown in FIG. 9, the TDRA table includes two rows of SLIV, the first row of SLIV includes: SLIV1-1, SLIV1-2, SLIV1-3, SLIV1-4, and between SLIV1-2 and SLIV1-3 discontinuous, the second time-domain offsets (for example, represented by k0) corresponding to each SLIV are 0, 1, 3, 4, where k0 is the first candidate physical channel receiver opportunity scheduled by the same first control information format and The time domain offset between each candidate physical channel receiver opportunity, the second row of SLIV includes: SLIV2-1, the HARQ feedback timing set includes {2, 4}, then the time units in the first time unit group include: time Slot n-8, slot n-7, slot n-6, slot n-5, slot n-4, slot n-3, and slot n-2.

Taking determining the time unit in the first time unit group according to factor 1 as an example, the time unit in the first time unit group is determined according to the HARQ feedback timing set, including:

The first time domain offset between the first time unit in the first time unit group and the first feedback time unit is determined according to the HARQ feedback timing indication information in the HARQ feedback timing set, where , the first time unit is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table.

Here, the time domain offset between the first time unit and the first feedback time unit is the first time domain offset k1. k1 is determined by the configured HARQ feedback timing indication information in the HARQ feedback timing set. In the example shown in FIG. 7 , the configured HARQ feedback timing indication information in the HARQ feedback timing set includes 2 and 5, and the value of k1 includes 2 and 5.

Optionally, one or more pieces of HARQ feedback timing indication information may be configured in the HARQ feedback timing set.

Here, the first time unit is the time unit corresponding to the last SLIV in the first SLIV row of the TDRA table. In the example shown in Figure 7, the first SLIV includes SLIV1-2 and SLIV2-1, and the first time unit includes: time slot n-5 and time slot n-2, that is, slot n-5 corresponds to SLIV1-2 and SLIV2 -1, time slot n-2 corresponds to SLIV1-2 and SLIV2-1. Wherein, the first SLIV row refers to any row in the TDRA table.

Taking determining the time unit in the first time unit group according to factor 3 as an example, the time unit in the first time unit group is determined according to at least one line of symbol start length indication SLIV in the TDRA table, including:

The first time unit in the first time unit group is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table; and/or,

The second time unit in the first time unit group is a time unit corresponding to a second SLIV, and the second SLIV is a time unit other than the first SLIV in the first SLIV row in the TDRA table SLIV.

Each SLIV row in the TDRA table includes at least one SLIV, and in the case that one SLIV row corresponds to one SLIV, the SLIV row only includes the first SLIV. In the case that one SLIV line corresponds to multiple SLIVs, the SLIV line includes the first SLIV and the second SLIV. The time unit corresponding to the first SLIV is the first time unit, and the time unit corresponding to the second SLIV is the second time unit.

In one example, as shown in FIG. 7, the first SLIV included in the SLIV1 row is SLIV1-2, the second SLIV included in the SLIV2 row is SLIV1-1, and the first SLIV included in the SLIV2 row is SLIV2-1, then SLIV1- 2 The time unit corresponding to SLIV2-1 is the first time unit, and the time unit corresponding to SLIV1-1 is the second time unit.

In one example, as shown in FIG. 8, the first SLIV included in the SLIV1 row is SLIV1-4, the second SLIV included in the SLIV1 row is SLIV1-1, SLIV1-2, and SLIV1-3, and the first SLIV included in the SLIV2 row is SLIV2-1, the time units corresponding to SLIV1-4 and SLIV2-1 are the first time unit, and the time units corresponding to SLIV1-1, SLIV1-2, and SLIV1-3 are the second time unit.

Taking the determination of the time units in the first time unit group according to factor 3 as an example, in the case where time domain binding feedback is configured, the time units in the first time unit group are based on at least one row in the TDRA table The symbol start length indicates what SLIV determines, including:

The first time unit in the first time unit group is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table; or,

The second time unit in the first time unit group is the time unit corresponding to the second SLIV, and the second SLIV is the last one in the first SLIV group in the first SLIV row in the TDRA table SLIV, wherein the first SLIV group is determined according to time-domain bonding feedback parameters.

Optionally, when time domain binding is configured, multiple SLIVs in the first SLIV row correspond to a group, multiple candidate physical channel receivers corresponding to the first SLIV row can be bound, and one SLIV The HARQ-ACK information corresponding to the candidate physical channel receiver opportunity corresponding to the row is bundled into one HARQ-ACK information to be fed back. At this time, the HARQ-ACK information to be fed back corresponds to the first time unit in the HARQ-ACK codebook, and the first The time unit is the time unit corresponding to the last SLIV in the first SLIV row.

Optionally, the time-domain bundling feedback parameter includes N, and N is greater than 1.

In an example, the HARQ-ACK information corresponding to multiple candidate physical channel receivers corresponding to the first SLIV row is bundled into 1 bit.

In an example, the TDRA table includes two rows of SLIV, and one row of SLIV includes 3 SLIVs: SLIV1~SLIV 3, then the SLIV group corresponding to this row of SLIV includes SLIV1~3, and the first time unit includes the time unit corresponding to SLIV3 ; Another row of SLIVs includes 5 SLIVs: SLIV4-SLIV 8, then the SLIV group corresponding to this row of SLIVs includes SLIV4-8, and the first time unit includes the time unit corresponding to SLIV8.

Optionally, when time domain binding is configured, multiple SLIVs in the first SLIV row correspond to multiple SLIV groups, the first SLIV group is any SLIV group, and the candidate physical The HARQ-ACK information corresponding to the channel receiver is bound as one HARQ-ACK information to be fed back. At this time, the HARQ-ACK information to be fed back corresponds to the second time unit in the HARQ-ACK codebook, and the second time unit is the corresponding The time unit corresponding to the last SLIV in the first SLIV group. It should be understood that, in this case, the time unit corresponding to the last SLIV in the last SLIV group among the multiple SLIV groups may also be considered as the first time unit.

In one example, a row of SLIVs includes 8 SLIVs: SLIV1-SLIV 8, and according to the time-domain bonding feedback parameters, it is determined that 4 candidate physical channel receivers are likely to be bonded, then the row of SLIVs includes 2 groups of SLIVs, namely SLIV1 ~4, SLIV5~8, the second time unit is the time unit corresponding to SLIV4 and SLIV8. Wherein, the time unit corresponding to SLIV8 may also be considered as the first time unit.

Taking determining the time unit in the first time unit group according to factor 2 as an example, the time unit in the first time unit group is determined according to the TDRA table, including:

The time domain offset between the second time unit in the first time unit group and the first time unit is a second time domain offset, and the second time domain offset is based on the TDRA table determined, wherein the first time unit is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table.

Here, the first device determines the second time domain offset according to the TDRA table, and determines the second time unit according to the determined second time domain offset and the first time unit.

In some embodiments, the first SLIV row includes at least two SLIVs, and the second time domain offset is determined according to the TDRA table, including:

The second time domain offset is determined according to at least one K0 value corresponding to the first SLIV row in the TDRA table; or,

The second time domain offset is the time domain offset between the time unit corresponding to the second SLIV in the TDRA table and the first time unit, and the second SLIV is the time domain offset in the TDRA table The SLIV other than the first SLIV in the first SLIV row of , or, in the case where time-domain binding feedback is configured, the second SLIV is the first SLIV in the TDRA table The last SLIV in the first SLIV group in the row, wherein the first SLIV group is determined according to the time-domain binding feedback parameters.

Optionally, the second time domain offset is at least one K0 value corresponding to the first SLIV row in the TDRA table.

Optionally, the second time domain offset is a time domain offset between the first SLIV and the second SLIV in the first SLIV row in the TDRA table.

In some embodiments, the SLIV is an effective SLIV.

In some embodiments, a valid SLIV may be understood as the symbol corresponding to the SLIV does not include an uplink symbol. When at least one of the symbols corresponding to the candidate physical channel receiver opportunity in the time unit corresponding to the SLIV is an uplink symbol, the SLIV is considered to be an invalid SLIV.

In some embodiments, the SLIV is an effective SLIV comprising:

The candidate physical channel receiver opportunity corresponding to the SLIV is effectively scheduled; or,

The first device may be scheduled to perform physical channel reception according to the SLIV.

Here, the first device can receive the physical channel according to the candidate physical channel receiver opportunity scheduled by SLIV, wherein there is a possibility of transmitting a physical channel on a candidate physical channel receiver opportunity, that is, the first device can receive the physical channel on the candidate physical channel Opportunistically receive the physical channel scheduled by the first control information.

In some embodiments, the first time domain offset between the first time unit in the first time unit group and the first feedback time unit is based on the HARQ feedback timing in the HARQ feedback timing set Determined by the indication information, wherein the first time unit is the time unit corresponding to the first SLIV, and the first SLIV is the last valid SLIV in the first SLIV row in the TDRA table.

As an example, the first device is received by a physical channel scheduled by a first control information, the first control information indicates the first SLIV row in the TDRA table, the last SLIV in the first SLIV row corresponds to time unit n, and the penultimate A SLIV corresponds to time unit n-1, and the HARQ feedback timing indication information corresponding to the first control information is K1, wherein, the last SLIV is not a valid SLIV (or the SLIV is an invalid SLIV), and the penultimate SLIV is If SLIV is valid, the feedback time unit corresponding to the first control information (or the physical channel reception scheduled by the first control information) is time unit n-1+K1.

In some embodiments, the first time domain offset between the first time unit in the first time unit group and the first feedback time unit is based on the HARQ feedback timing in the HARQ feedback timing set determined by the indication information, wherein the first time unit is the time unit corresponding to the first SLIV, and the first SLIV is the last configured SLIV in the first SLIV row in the TDRA table. In this case, the first SLIV may or may not be a valid SLIV.

As an example, the first device is received by a physical channel scheduled by a first control information, the first control information indicates the first SLIV row in the TDRA table, the last SLIV in the first SLIV row corresponds to time unit n, and the penultimate A SLIV corresponds to time unit n-1, and the HARQ feedback timing indication information corresponding to the first control information is K1, wherein, the last SLIV is not a valid SLIV (or the SLIV is an invalid SLIV), and the penultimate SLIV is If SLIV is valid, the feedback time unit corresponding to the first control information (or the physical channel reception scheduled by the first control information) is time unit n+K1.

In some embodiments, the second device sends to the first device first control information for scheduling transmission of at least one physical channel, and the first HARQ-ACK codebook includes HARQ-ACK information corresponding to the at least one physical channel.

The first control information received by the first device schedules at least one physical channel for transmission, the first control information corresponds to the first control information format, and the first HARQ-ACK codebook includes the at least one physical channel Corresponding HARQ-ACK information.

The second device sends first control information to the first device, and the number of physical channels scheduled by the first control information is S, where S is less than or equal to M.

Optionally, the first control information may indicate the SLIV row in the TDRA table, and the physical channel corresponding to the SLIV scheduled by the SLIV row indicated by the first control information is the physical channel scheduled by the first control information.

In an example, M is 4, and the TDRA table is as follows:

Line 1: SLIV1-1, SLIV1-2, SLIV1-3, SLIV1-4;

Line 2: SLIV2-1, SLIV2-2;

Row 3: SLIV3-1;

If the first control information sent by the second device to the first device indicates row 1 in the TDRA table, then S=4; if the first control information sent by the second device to the first device indicates row 2 in the TDRA table, Then S=2; if the first control information sent by the second device to the first device indicates row 3 in the TDRA table, then S=1.

Optionally, the first control information further includes a HARQ feedback timing indication, and the HARQ feedback timing indication is used to determine a value in the HARQ feedback timing set.

Optionally, when the HARQ feedback timing set includes a value, the first control information may not include the HARQ feedback timing indication, and at this time, K1 is the value included in the HARQ feedback timing set.

The first control information sent by the second device to the first device is used to schedule at least one physical channel, and the first HARQ-ACK codebook fed back by the first device to the second device includes the HARQ codebook of at least one physical channel scheduled by the first control information. -ACK information.

In an example, the first control information sent by the second device to the first device is used to schedule physical channel 1 and physical channel 2, and the first HARQ-ACK codebook fed back by the first device to the second device includes: physical channel 1 HARQ-ACK information corresponding to physical channel 2.

In some embodiments, a first physical channel of the at least one physical channel corresponds to a first time unit, wherein a candidate physical channel receiver on the first time unit corresponds to a first feedback bit number Y, and the The first physical channel corresponds to the second number of feedback bits X, and the first number of feedback bits is different from the second number of feedback bits.

When the number of bits of the HARQ-ACK information corresponding to the first time unit is the first number of feedback bits, and the first physical channel is fed back in the first feedback time unit, the number of bits of the HARQ-ACK information corresponding to the first physical channel is the second number of feedback bits. At this time, the number of bits allocated for the first time unit in the HARQ-ACK codebook is different from the number of bits actually required by the first time unit.

Optionally, the first number Y of feedback bits is greater than the second number X of feedback bits.

In some embodiments, the second feedback bit number X is smaller than the first feedback bit number Y, and the X HARQ-ACK information bits corresponding to the first physical channel are located in the Y HARQ-ACK information bits The first X HARQ-ACK information bits of .

Here, when the number of bits of the HARQ-ACK information to be fed back in a time unit is less than the number of bits allocated for the time unit, the fed back HARQ-ACK information occupies part of the allocated bits.

In some embodiments, when time-domain bundling feedback and air-domain bundling feedback are configured, the bundling feedback mode of the first device is: perform space-domain bundling first, and then time-domain bundling.

In some embodiments, when time-domain bundling feedback is configured, when the configured transport block TB feedback length of the first device is greater than 1, the bundling feedback method of the first device is: first Binding in the air domain, followed by binding in the time domain.

That is to say, if the first device is configured with time-domain bundling feedback and air-domain bundling feedback, or the first device is configured with time-domain bundling feedback but not configured with air-domain bundling feedback, when the physical When the TB feedback length corresponding to the channel is greater than 1 (or the number of codewords corresponding to the physical channel to be bundled and fed back is greater than 1), the first device needs to perform spatial domain After the bundling feedback, the HARQ-ACK information corresponding to the physical channel is obtained, and then the time-domain bundling feedback is performed on the HARQ-ACK information corresponding to different physical channels.

In some embodiments, when the first device is configured with spatial domain bundling feedback, the second device determines at least two codewords according to one piece of HARQ-ACK information in the first HARQ-ACK codebook HARQ-ACK information.

As an example, when the second device determines that the first device is configured with spatial domain bundling feedback, if the received HARQ-ACK information is ACK, it determines that the two bundled HARQ-ACK information are ACK, and when the received In the case that the HARQ-ACK information of the given information is NACK, it is assumed that the two bundled HARQ-ACK information are both NACK.

In some embodiments, when the first device is configured with time-domain bundling feedback, the second device determines at least two HARQ-ACK information of physical channels.

As an example, when the second device determines that the first device is configured with time-domain bundling feedback, if the received HARQ-ACK information of one physical channel is ACK, determine the The HARQ-ACK information is all ACK. When the received HARQ-ACK information of a physical channel is NACK, it is determined that the HARQ-ACK information of one or more physical channels in multiple physical channels is bound to NACK, and accordingly , the second device may assume that the HARQ-ACK information of each physical channel bound to multiple physical channels is NACK.

In some embodiments, when time-domain bundling feedback is configured, the first device assumes that HARQ-ACK information corresponding to unscheduled candidate physical channel receivers is ACK when performing time-domain bundling.

In a case where the first device is configured with time-domain bundling feedback, the second device assumes that HARQ-ACK information corresponding to unscheduled candidate physical channel receivers is ACK.

If N physical channel bonding feedback is configured, but the number of scheduled physical channels is less than N, for the unscheduled physical channels, it is assumed that the corresponding feedback information is ACK.

In some embodiments, the first device is a terminal, the second device is a network device, the physical channel includes a physical downlink shared channel PDSCH, and the feedback resources in the first feedback time unit include uplink feedback resources; or,

The first device is a first terminal, the second device is a second terminal, the physical channel includes a PSSCH, and the feedback resources in the first feedback time unit include sidelink feedback resources.

Optionally, the uplink feedback resources include PUCCH resources or physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resources.

Optionally, the sidelink feedback resources include: Physical Sidelink Feedback Channel (Physical Sidelink Feedback Channel, PSFCH) resources.

In some embodiments, the first device is configured with Type-1 HARQ-ACK codebook feedback.

In the following, the wireless communication method provided by the embodiment of the present application will be further described.

The embodiment of this application considers that the network device can use one piece of control information such as DCI to schedule at least two physical channels such as PDSCH transmission, or can use one piece of control information to activate at least two downlink resources for at least two physical channel transmissions (wherein, the at least Two downlink resources may belong to the same SPS resource configuration, and may also belong to different SPS resource configurations), the determination of the candidate PDSCH receiving opportunities in the semi-static codebook, and the terminal device determines the corresponding semi-static codebook, Thus, semi-static codebook feedback is performed.

The first device, such as a terminal device, is configured with a first control information format, where the maximum number of physical channels that can be scheduled in the first control information format or the maximum number of time slots M corresponding to physical channels that can be scheduled is greater than or equal to 2 .

The first device receives the first control information format sent by the second device, the first control information format schedules transmission of S physical channels, S is greater than or equal to 1 and less than or equal to M, and the S physical channels are At least one physical channel corresponds to the first HARQ-ACK codebook, and the first HARQ-ACK codebook corresponds to the first feedback resource.

The first device sends the first HARQ-ACK codebook by using the first feedback resource.

Here, the first control information format configured on the first device means that the first device can detect the first control information format; the first control information format received by the first device means that the first device receives the first control information format through detection. - Control message format. M refers to the maximum number of physical channels that can be scheduled by the first control information format; S refers to the number of physical channels scheduled by the first control information corresponding to the first control information format currently received.

In one example, the TDRA form is as follows:

Row 1: SLIV1-1, SLIV1-2, SLIV1-3, SLIV1-4

Row 2: SLIV2-1, SLIV2-2

Row 3: SLIV3-1

Then M is 4.

For S, if the DCI received by the first device indicates the first row in the TDRA table, then S=4; if the DCI received by the first device indicates the second row in the TDRA table, then S=2; if the first The DCI received by the device indicates row 3 in the TDRA table, then S=1.

In some embodiments, the size of the first HARQ-ACK codebook is determined according to the M value.

In some embodiments, one feedback slot corresponds to one HARQ-ACK codebook, and one HARQ-ACK codebook corresponds to HARQ-ACK information corresponding to a group of candidate physical channel receivers included in one HARQ-ACK feedback window. In other words, the first feedback resource corresponds to the first HARQ-ACK codebook, and the first HARQ-ACK codebook corresponds to HARQ-ACK information corresponding to a group of candidate PDSCH receiver opportunities included in the HARQ-ACK feedback window. For example, one PUCCH slot corresponds to one HARQ-ACK codebook.

In some embodiments, the physical channel includes a PDSCH, the first device includes a terminal device, the second device includes a network device, and the first control information format includes a DCI format.

In some embodiments, the physical channel includes a sidelink physical channel, the first device includes a first terminal device, and the second device includes a second terminal device or a network device. Optionally, the first control information format includes a sidelink control information format or a DCI format.

In some embodiments, the first feedback resources include uplink resources. For example, the first feedback resources include PUCCH resources or PUSCH resources.

In some embodiments, the first feedback resources include sidewalk resources. For example, the first feedback resources include PSFCH resources.

In some embodiments, the time domain position of the first feedback resource is determined according to the HARQ feedback timing indication information in the first control information format, where the HARQ feedback timing indication information is used to indicate the HARQ feedback timing set or, the time domain position of the first feedback resource is determined according to the HARQ feedback timing set, wherein the first control information format does not include HARQ feedback timing indication information, and/or, Only one value is included in the HARQ feedback timing set. Wherein, the HARQ feedback timing set is configured by a high layer parameter, or the HARQ feedback timing set is preset.

Specifically, the time domain position of the first feedback resource is determined according to K1, wherein the HARQ feedback timing indication information in the first control information format indicates the K1 value included in the HARQ feedback timing set, or the HARQ feedback timing set Only the K1 value is included in the first control information format and the HARQ feedback timing indication information is not included in the first control information format.

Optionally, the K1 value is used to indicate: if the end position of the last physical channel among the S physical channels is at time slot n, the first feedback resource is located at time slot n+K1.

Optionally, the K1 value is used to indicate: if the end position of the last SLIV among the S SLIVs is in time slot n, the first feedback resource is located in time slot n+K1.

Optionally, the last SLIV is the SLIV configured in the TDRA table, or, the last SLIV is a valid SLIV.

In some embodiments, a group of candidate physical channel receivers corresponding to a feedback time slot is determined according to at least one of the M value, the S value and the K1 value.

Taking candidate physical channel receiver opportunities as candidate PDSCH receiver opportunities as an example, the group of candidate PDSCH receiver opportunities is determined according to the K1 value in the HARQ feedback timing set and the TDRA table, wherein the TDRA table is also used to determine the M value and/or the S value.

In some embodiments, the downlink time slots corresponding to a group of candidate PDSCH receivers are determined according to at least one of the TDRA table, M value, S value and K1 value.

In some embodiments, the number of HARQ-ACK feedback bits corresponding to a downlink time slot is based on at least one of the number of candidate PDSCH receiver opportunities included in the downlink time slot and the maximum number of feedback bits corresponding to a candidate PDSCH receiver opportunity definite.

In some embodiments, the number of candidate PDSCH receiving opportunities corresponding to one downlink time slot is determined according to the TDRA table. As an example, the TDRA table includes N rows, each row corresponding to at least one SLIV value.

In some embodiments, the number of candidate PDSCH receiving opportunities corresponding to one downlink time slot is determined according to the effective SLIV scheduling in the TDRA table. For example, if at least one of the symbols corresponding to the PDSCH indicated by a certain SLIV value indicated by a row in the TDRA table is an uplink symbol when associated with the downlink time slot, the SLIV value is considered to correspond to invalid scheduling.

Optionally, the number of candidate PDSCH receiving opportunities corresponding to one downlink time slot is determined according to the effective SLIV scheduling and K1 in the TDRA table.

Assume that the TDRA table configured by the terminal device includes 2 rows, the first row 1 DCI schedules 4 candidate PDSCH receiving opportunities, and the corresponding SLIVs are {SLIV1-1, SLIV1-2, SLIV1-3, SLIV1-4} and assume The 4 candidate PDSCH receivers are located in 4 consecutive time slots, the second row schedules 1 candidate PDSCH receiver with 1 DCI, and the corresponding SLIV is SLIV2-1. The HARQ feedback timing set includes two K1 values, which are {2, 4} respectively, and the HARQ-ACK feedback window corresponding to feedback time slot n (or the downlink time slot corresponding to feedback time slot n) is shown in Figure 8. Including: time slot n-7, time slot n-6, time slot n-5, time slot n-4, time slot n-3 and time slot n-2. Optionally, the number of candidate PDSCH receiving opportunities corresponding to one downlink time slot is determined according to the effective SLIV scheduling, K1 and K0 in the TDRA table. Optionally, K0 includes an indication of the time domain offset between the first PDSCH scheduled by a DCI and the PDSCHs scheduled by the DCI, such as a time slot interval, or, K0 includes the difference between a DCI and each PDSCH scheduled by the DCI An indication of the time-domain offset between slots, such as slot spacing.

Assume that the TDRA table configured by the terminal device includes 2 rows, the first row 1 DCI schedules 4 candidate PDSCH receiving opportunities, and the corresponding SLIVs are {SLIV1-1, SLIV1-2, SLIV1-3, SLIV1-4} and assume The four candidate PDSCH receivers are located in discontinuous time slots in the time domain (for example, the corresponding K0 values are 0, 1, 3, and 4 respectively, indicating that the first PDSCH scheduled by a DCI and each PDSCH scheduled by the DCI interval between slots), the second row schedules one candidate PDSCH receiving opportunity for one DCI, and the corresponding SLIV is SLIV2-1. The HARQ feedback timing set includes two K1 values, which are {2, 4} respectively, then the HARQ-ACK feedback window corresponding to feedback slot n (or the downlink slot corresponding to feedback slot n) is shown in Figure 9. It includes time slot n-8, time slot n-7, time slot n-6, time slot n-5, time slot n-4, time slot n-3 and time slot n-2.

In the embodiment of the present application, the determination of the number of HARQ-ACK feedback bits corresponding to a downlink time slot involves the following two situations:

Case 1: The number of bits X corresponding to each candidate physical channel opportunity when the terminal device is configured to receive multiple physical channels scheduled by one DCI is different from the bit number Y corresponding to the candidate physical channel receiver opportunity when one DCI schedules one physical channel. where X is less than or equal to Y.

For example, when a terminal device is configured with one DCI scheduling multiple physical channels, the maximum number of TB or the maximum number of bits corresponding to each candidate physical channel receiver is 1. In the case of one DCI scheduling one physical channel, the candidate physical channel receiver corresponds to The maximum number of TB or the maximum number of bits is 2, then X=1, Y=2.

For another example, when the terminal device is configured with one DCI scheduling multiple physical channels, the maximum number of TB or the maximum number of bits corresponding to each candidate physical channel receiver opportunity is 1, and the candidate physical channel receiver opportunity in the case of one DCI scheduling one physical channel The corresponding maximum number of TBs or maximum number of bits is 2, and the terminal device is configured with airspace bundling feedback (or called codeword bundling feedback), then X=1, Y=1.

For another example, when the terminal device is configured with one DCI to schedule multiple physical channels, each candidate physical channel receiver will feed back in TB and the maximum number of TB or the maximum number of bits corresponding to each candidate physical channel receiver is 1. One DCI scheduler In the case of one physical channel, the receiver of the candidate physical channel will give feedback according to CBG and the CBG feedback length is 4, and the corresponding maximum TB number is 1, then X=1, Y=4.

Correspondingly, taking Figure 8 as an example, the number of bits corresponding to each downlink slot in the HARQ-ACK codebook to be fed back on the PUCCH on slot n is shown in Table 5,

Table 5. Example of the number of bits corresponding to each downlink time slot in the HARQ-ACK codebook

下行时隙号downlink slot number	n-7n-7	n-6n-6	n-5n-5	n-4n-4	n-3n-3	n-2n-2
比特数number of bits	Xx	Xx	Xx	YY	Xx	YY

Optionally, if the number of bits to be fed back on time slot n-4 or time slot n-2 is X, for example, the corresponding X bits of a certain physical channel in the case of one DCI scheduling multiple physical channels to be fed back, then The X bits occupy the first X bit positions among the Y bit positions.

As an example, assuming X=1, Y=2, the number of bits corresponding to each downlink slot in the HARQ-ACK codebook to be fed back on the PUCCH on slot n is shown in Table 6:

Table 6. Example of the number of bits corresponding to each downlink time slot in the HARQ-ACK codebook

Wherein, for time slot n-4, when the first device is scheduled with 4 SLIVs and corresponds to K1=4, the feedback position corresponding to time slot n-4 in the HARQ-ACK codebook feeds back the HARQ- ACK information, NACK}; when the first device is scheduled with 4 SLIVs and corresponds to K1=2, the HARQ-ACK information corresponding to {SLIV1-2 is fed back at the feedback position corresponding to time slot n-4 in the HARQ-ACK codebook, NACK}; when the first device is scheduled with 1 SLIV and corresponds to K1=4, the feedback position corresponding to time slot n-4 in the HARQ-ACK codebook is fed back {the first in the HARQ-ACK information corresponding to SLIV2-1 bit, the second bit in the HARQ-ACK information corresponding to SLIV2-1}.

Case 2: The terminal device is configured with time-domain binding feedback, or the terminal device is configured with the corresponding bit number Z when one DCI schedules multiple physical channels, or the terminal device is configured with one DCI to schedule multiple physical channels with multiple candidate physical channels At least two candidate physical channel receivers among the receivers combine feedback.

In some embodiments, if the terminal device is configured with air domain bundling feedback and configured with time domain bundling feedback, the terminal device performs air domain bundling first and then time domain bundling.

In some embodiments, if the number of feedback bits corresponding to a physical channel to be fed back by the terminal device is greater than 1, and the terminal device is configured with time-domain bundling feedback, the terminal device first performs the feedback bit number corresponding to a physical channel Binding, and then time domain binding.

In some embodiments, the time-domain bundling feedback may be configured by the network device, or the time-domain bundling feedback may be predefined.

In some embodiments, the terminal device is configured with at least one candidate physical channel receiver set, where each candidate physical channel receiver set corresponds to 1 feedback bit. Optionally, the position of the feedback bit corresponding to each candidate physical channel receiver group in the HARQ-ACK codebook is the feedback bit corresponding to the last candidate physical channel receiver in the candidate physical channel receiver group in the HARQ-ACK position in the codebook.

In some embodiments, the terminal device is configured with at least one SLIV group, where each SLIV group corresponds to 1 feedback bit. Optionally, the position of the feedback bit corresponding to each SLIV group in the HARQ-ACK codebook is the position of the feedback bit corresponding to the last SLIV in the SLIV group in the HARQ-ACK codebook. Optionally, the last SLIV is the SLIV configured in the TDRA table, or, the last SLIV is a valid SLIV.

Also taking Figure 8 as an example, assuming that the terminal device is configured with a DCI corresponding to a candidate physical channel receiver corresponding to 1 feedback bit, then each downlink time slot in the HARQ-ACK codebook to be fed back on the PUCCH on time slot n The corresponding number of bits is shown in Table 7:

Table 7. Example of the number of bits corresponding to each downlink time slot in the HARQ-ACK codebook

Wherein, the bound bits of SLIV1-1 to SLIV1-4 correspond to time domain binding, SLIV2-1 does not correspond to binding, and the bound bits of SLIV2-1 correspond to air domain binding.

That is to say, in this example, the slot group corresponding to the feedback slot n only includes slot n-4 and slot n-2, and the HARQ-ACK codebook only includes 2 bits, which can reduce overhead.

As an example, assuming that a terminal device is configured with one DCI to schedule multiple physical channels, every two candidate physical channel receivers correspond to one feedback bit, then each of the HARQ-ACK codebooks to be fed back on the PUCCH on slot n The number of bits corresponding to the downlink time slot is shown in Table 8:

Table 8. Example of the number of bits corresponding to each downlink time slot in the HARQ-ACK codebook

Among them, the bits after binding SLIV1-1 and SLIV1-2 correspond to time domain binding, the bits after binding SLIV1-3 and SLIV1-4 correspond to time domain binding, SLIV2-1 does not correspond to binding, and SLIV2-1 binds The determined bits correspond to the airspace binding.

That is to say, in this example, the time slot group corresponding to the feedback time slot n only includes time slot n-6, time slot n-4 and time slot n-2, and the HARQ-ACK codebook only includes 3 bits, which can reduce overhead.

In some embodiments, the first device such as a terminal device is configured with a first control information format, wherein the maximum number of physical channels or the maximum number of time slots M that can be scheduled by the first control information format is greater than or equal to 2;

The first device receives the first control information format sent by the second device, the first control information format schedules transmission of S physical channels, S is greater than or equal to 1 and less than or equal to M, and the S physical channels are At least one physical channel corresponds to a first HARQ-ACK codebook, and the first HARQ-ACK codebook corresponds to a first feedback resource;

Wherein, different physical channels among the S physical channels are used to transmit different TBs.

Wherein, taking the physical channel scheduled by DCI as PDSCH as an example, the number of HARQ-ACK feedback bits corresponding to a downlink time slot is based on the number of candidate PDSCH receiver opportunities included in the downlink time slot and the maximum feedback number corresponding to a candidate PDSCH receiver opportunity At least one of the number of bits is determined.

Wherein, the downlink time slots corresponding to a group of candidate PDSCH receivers are determined according to at least one of TDRA table, M value, S value, K0 value and K1 value.

In a high-frequency system, if a DCI is introduced to schedule multiple physical channels, and the multiple physical channels are used to transmit different TBs, the terminal device may be configured with time-domain bonding feedback, or the terminal device may be configured by The number of bits corresponding to each candidate physical channel receiver when one DCI is configured to schedule multiple physical channels is different from the bit number corresponding to each candidate physical channel receiver when one DCI schedules one physical channel. In these cases, the overhead of the size of the HARQ-ACK codebook determined by the solution in this application can be effectively reduced, and it can also avoid inconsistencies in the understanding of the size of the HARQ-ACK codebook by the network device and the terminal device.

The preferred embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple modifications all belong to the protection scope of the present application. For example, the various specific technical features described in the above specific implementation manners can be combined in any suitable manner if there is no contradiction. Separately. As another example, any combination of various implementations of the present application can also be made, as long as they do not violate the idea of the present application, they should also be regarded as the content disclosed in the present application. For another example, on the premise of no conflict, the various embodiments described in this application and/or the technical features in each embodiment can be combined with the prior art arbitrarily, and the technical solutions obtained after the combination should also fall within the scope of this application. protected range.

It should also be understood that in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in this application. The implementation of the examples constitutes no limitation. In addition, in this embodiment of the application, the terms "downlink", "uplink" and "sidelink" are used to indicate the transmission direction of signals or data, wherein "downlink" is used to indicate that the transmission direction of signals or data is sent from the station The first direction to the user equipment in the cell, "uplink" is used to indicate that the signal or data transmission direction is the second direction sent from the user equipment in the cell to the station, and "side line" is used to indicate that the signal or data transmission direction is A third direction sent from UE1 to UE2. For example, "downlink signal" indicates 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 only an association relationship describing associated objects, indicating that there may be three relationships. Specifically, A and/or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

Figure 10 is a schematic diagram of the structural composition of the HARQ-ACK codebook feedback device provided by the embodiment of the present application, which is applied to the first device. As shown in Figure 10, the HARQ-ACK codebook feedback device includes:

The first determining unit 1001 is configured to determine a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes HARQ-ACK information corresponding to candidate physical channel receiver opportunities on time units in the first time unit group, The time units in the first time unit group correspond to the first feedback time unit;

The sending unit 1002 is configured to send the first HARQ-ACK codebook to the second device through the feedback resource in the first feedback time unit;

The number of feedback bits corresponding to a candidate physical channel receiver in the first time unit group;

The number of feedback bits corresponding to a candidate physical channel receiver opportunity on a time unit in the first time unit group;

The number of candidate physical channel receiver opportunities in one time unit in the first time unit group.

In some embodiments,

The first candidate physical channel receiver in the first time unit group corresponds to the first number of feedback bits, and the first candidate physical channel receiver corresponds to the case where a physical channel is scheduled to be received by the first control information format; and/ or,

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group includes the first candidate physical channel receiver opportunity and the second candidate physical channel receiver opportunity, and a candidate physical channel receiver opportunity on the time unit The number of feedback bits corresponding to the receiver is the larger value of the first number of feedback bits and the second number of feedback bits;

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the first candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the The number of first feedback bits;

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the second candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the The second feedback bit number.

A candidate physical channel receiver on a second time unit in the first time unit group corresponds to the second number of feedback bits.

The second feedback bit number is 1;

In some embodiments, the time unit in the first time unit group is determined according to at least one of the following: HARQ feedback timing set, time domain resource allocation TDRA table, at least one line of symbol start length indication SLIV in the TDRA table , where one SLIV corresponds to one candidate physical channel receiver opportunity.

In some embodiments, the time units in the first time unit group are determined according to the HARQ feedback timing set, including:

In some embodiments, the time units in the first time unit group are determined according to at least one line of symbol start length indication SLIV in the TDRA table, including:

The second time unit in the first time unit group is the time unit corresponding to the second SLIV, and the second SLIV is the time unit other than the first SLIV in the first SLIV row in the TDRA table SLIV.

In some embodiments, when time-domain bundling feedback is configured, the time units in the first time unit group are determined according to at least one line of symbol start length indication SLIV in the TDRA table, including:

The third time unit in the first time unit group is the time unit corresponding to the second SLIV, and the second SLIV is the last one in the first SLIV group in the first SLIV row in the TDRA table SLIV, wherein the first SLIV group is determined according to time-domain bonding feedback parameters.

In some embodiments, the time units in the first time unit group are determined according to the TDRA table, including:

The second time domain offset is determined by at least one K0 value corresponding to the first SLIV row in the TDRA table; or,

The second time domain offset is based on the time domain offset between the time unit corresponding to the second SLIV in the TDRA table and the first time unit, and the second SLIV is the time domain offset in the TDRA table The SLIV other than the first SLIV in the first SLIV row in the , or, in the case where time-domain binding feedback is configured, the second SLIV is the first SLIV in the TDRA table The last SLIV in the first SLIV group in the SLIV row, where the first SLIV group is determined according to time-domain binding feedback parameters.

In some embodiments, the SLIV is an effective SLIV.

In some embodiments, the SLIV is an effective SLIV comprising:

In some embodiments, the first control information received by the first device schedules at least one physical channel, the first control information corresponds to the first control information format, and the first HARQ-ACK codebook includes the HARQ-ACK information corresponding to the at least one physical channel.

In some embodiments, when time-domain bundling feedback and air-space bundling feedback are configured, the bundling feedback mode of the first device is:

The air domain binding is performed first, and then the time domain binding is performed.

In some embodiments, when time-domain bundling feedback is configured, when the configured transport block TB feedback length of the first device is greater than 1, the bundling feedback mode of the first device is:

The first device is a first terminal, the second device is a second terminal, the physical channel includes a physical sidelink shared channel PSSCH, and the feedback resources in the first feedback time unit include sidelink feedback resources.

Fig. 11 is a schematic diagram of the structural composition of the feedback device of the HARQ-ACK codebook provided by the embodiment of the present application, which is applied to the second device. As shown in Fig. 11, the feedback device of the HARQ-ACK codebook includes:

The receiving unit 1101 is configured to receive the first HARQ-ACK codebook sent by the first device through the feedback resource on the first feedback time unit;

The second determining unit 1102 is configured to determine, according to the first HARQ-ACK codebook, the corresponding HARQ-ACK information received by the physical channel on the time unit in the first time unit group;

The second feedback bit number is 1;

The time domain offset between the second time unit in the first time unit group and the first time unit is a second time domain offset, and the second time domain offset is based on the TDRA table determined, wherein the first time unit is the time unit corresponding to the first initial length indication SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table.

In some embodiments, the SLIV is an effective SLIV.

In some embodiments, the SLIV is an effective SLIV comprising:

In some embodiments, the second device sends first control information for scheduling at least one physical channel to the first device, the first control information corresponds to the first control information format, and the first The HARQ-ACK codebook includes HARQ-ACK information corresponding to the at least one physical channel.

In some embodiments, when the first device is configured with spatial domain bundling feedback, the second device determines at least two HARQ-ACK information of codewords.

In some embodiments, when the first device is configured with time-domain bundling feedback, the second device determines at least HARQ-ACK information of two physical channels.

In some embodiments, when the first device is configured with time-domain bundling feedback, the second device assumes that HARQ-ACK information corresponding to unscheduled candidate physical channel receivers is ACK.

Those skilled in the art should understand that the relevant description of the above-mentioned HARQ-ACK codebook feedback apparatus in the embodiment of the present application can be understood with reference to the relevant description of the HARQ-ACK codebook feedback method in the embodiment of the present application.

Fig. 12 is a schematic structural diagram of a communication device 1200 provided by an embodiment of the present application. The communication device may be a first device or a second device, wherein the first device may be a terminal device, and the second device may be a terminal device or a network. The communication device 1200 shown in FIG. 12 includes a processor 1210, and the processor 1210 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 12 , the communication device 1200 may further include a memory 1220 . Wherein, the processor 1210 can invoke and run a computer program from the memory 1220, so as to implement the method in the embodiment of the present application.

Wherein, the memory 1220 may be an independent device independent of the processor 1210 , or may be integrated in the processor 1210 .

Optionally, as shown in FIG. 12, the communication device 1200 may further include a transceiver 1230, and the processor 1210 may control the transceiver 1230 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.

Wherein, the transceiver 1230 may include a transmitter and a receiver. The transceiver 1230 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 1200 may specifically be the first device in the embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the first device in each method of the embodiment of the present application. Let me repeat.

Optionally, the communication device 1200 may specifically be the second device in the embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the second device in each method of the embodiment of the present application. Let me repeat.

FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1300 shown in FIG. 13 includes a processor 1310, and the processor 1310 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 13 , the chip 1300 may further include a memory 1320 . Wherein, the processor 1310 can invoke and run a computer program from the memory 1320, so as to implement the method in the embodiment of the present application.

Wherein, the memory 1320 may be an independent device independent of the processor 1310 , or may be integrated in the processor 1310 .

Optionally, the chip 1300 may also include an input interface 1330 . Wherein, the processor 1310 can control the input interface 1330 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 1300 may also include an output interface 1340 . Wherein, the processor 1310 can control the output interface 1340 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the first device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first device in the methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

Optionally, the chip can be applied to the second device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the second device in the methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

Fig. 14 is a schematic block diagram of a communication system 1400 provided by an embodiment of the present application. As shown in FIG. 14 , the communication system 1400 includes a first device 1410 and a second device 1420 .

Wherein, the first device 1410 can be used to realize the corresponding functions realized by the first device in the above method, and the second device 1420 can be used to realize the corresponding functions realized by the second device in the above method. This will not be repeated here.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. 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 directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of illustration 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 (Synchronous DRAM, 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 (Synchlink DRAM, SLDRAM ) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above-mentioned memory is illustrative but not restrictive. For example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, 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) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium may be applied to the first device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the first device in the methods of the embodiments of the present application. For brevity, I won't repeat them here.

Optionally, the computer-readable storage medium may be applied to the second device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the second device in each method of the embodiment of the present application. For brevity, I won't repeat them here.

The embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the first device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first device in the methods of the embodiments of the present application. For brevity, the This will not be repeated here.

Optionally, the computer program product can be applied to the second device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the second device in each method of the embodiment of the present application. For brevity, in This will not be repeated here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program may be applied to the first device in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the first device in each method of the embodiment of the present application, For the sake of brevity, details are not repeated here.

Optionally, the computer program can be applied to the second device in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the second device in each method of the embodiment of the present application, For the sake of brevity, details are not repeated here.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disc, etc., which can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A hybrid automatic repeat request response HARQ-ACK codebook feedback method, the method comprising:

The first device determines the first HARQ-ACK codebook, the first HARQ-ACK codebook includes the HARQ-ACK information corresponding to the candidate physical channel receiver opportunity on the time unit in the first time unit group, the first time unit The time unit in the unit group corresponds to the first feedback time unit;

The first device sends the first HARQ-ACK codebook to the second device through the feedback resource in the first feedback time unit;

Wherein, the first device is configured with a first control information format, the maximum number of physical channels scheduled by the first control information format is M, and the M is greater than or equal to 2.
The method according to claim 1, wherein the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to at least one of the following:

The number of feedback bits corresponding to a candidate physical channel receiver in the first time unit group;

The number of feedback bits corresponding to a candidate physical channel receiver opportunity on a time unit in the first time unit group;

The number of candidate physical channel receiver opportunities in one time unit in the first time unit group.
The method of claim 2, wherein,

The first candidate physical channel receiver in the first time unit group corresponds to the first number of feedback bits, and the first candidate physical channel receiver corresponds to the case where a physical channel is scheduled in the first control information format; and/or ,

The second candidate physical channel receivers in the first time unit group correspond to the second number of feedback bits, and the second candidate physical channel receivers correspond to the condition that the first control information format schedules at least two physical channels.
The method according to claim 3, wherein the number of feedback bits corresponding to a candidate physical channel receiver on a time unit in the first time unit group includes at least one of the following situations:

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group includes the first candidate physical channel receiver opportunity and the second candidate physical channel receiver opportunity, and a candidate physical channel receiver opportunity on the time unit The number of feedback bits corresponding to the receiver is the larger value of the first number of feedback bits and the second number of feedback bits;

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the first candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the The number of first feedback bits;

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the second candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the The second feedback bit number.
A method according to any one of claims 2 to 4, wherein,

A candidate physical channel receiver on a first time unit in the first time unit group corresponds to the first number of feedback bits; and/or,

A candidate physical channel receiver on a second time unit in the first time unit group corresponds to the second number of feedback bits.
The method according to any one of claims 3 to 5, wherein the first number of feedback bits is determined according to at least one of the following situations:

The first number of feedback bits is determined according to the feedback length of the transport block TB;

The first number of feedback bits is determined according to the code block group CBG feedback length;

In a case where spatial domain bundling feedback is configured, the first number of feedback bits is 1.
The method according to any one of claims 3 to 6, wherein the second number of feedback bits is determined according to at least one of the following situations:

The second number of feedback bits is determined according to the feedback length of the transport block TB;

The second feedback bit number is 1;

In the case of configured airspace bundling feedback, the second feedback bit number is 1;

In a case where time-domain bundling feedback is configured, the second number of feedback bits is 1.
The method according to any one of claims 3 to 7, wherein the first number of feedback bits and the second number of feedback bits are different.
The method according to any one of claims 3 to 8, wherein the first number of feedback bits is greater than or equal to the second number of feedback bits.
The method according to any one of claims 1 to 9, wherein the time units in the first time unit group are determined according to at least one of the following: HARQ feedback timing set, time domain resource allocation TDRA table, TDRA At least one row of symbol start length in the table indicates SLIV, where one SLIV corresponds to one candidate physical channel receiving opportunity.
The method according to claim 10, wherein the time units in the first time unit group are determined according to the HARQ feedback timing set, comprising:

The first time domain offset between the first time unit in the first time unit group and the first feedback time unit is determined according to the HARQ feedback timing indication information in the HARQ feedback timing set, where , the first time unit is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table.
The method according to claim 10 or 11, wherein the time units in the first time unit group are determined according to at least one line of symbol start length indication SLIV in the TDRA table, including:

The first time unit in the first time unit group is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table; and/or,

The second time unit in the first time unit group is a time unit corresponding to a second SLIV, and the second SLIV is a time unit other than the first SLIV in the first SLIV row in the TDRA table SLIV.
The method according to claim 10 or 11, wherein, in the case of configuring time-domain bundling feedback, the time units in the first time unit group are based on at least one line of symbol start length in the TDRA table Instructions determined by SLIV include:

The first time unit in the first time unit group is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table; or,

The third time unit in the first time unit group is the time unit corresponding to the second SLIV, and the second SLIV is the last one in the first SLIV group in the first SLIV row in the TDRA table SLIV, wherein the first SLIV group is determined according to time-domain bonding feedback parameters.
The method according to claim 10 or 11, wherein the time units in the first time unit group are determined according to the TDRA table, comprising:

The time domain offset between the second time unit in the first time unit group and the first time unit is a second time domain offset, and the second time domain offset is based on the TDRA table determined, wherein the first time unit is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table.
The method according to claim 14, wherein the first SLIV row includes at least two SLIVs, and the second time domain offset is determined according to the TDRA table, comprising:

The second time domain offset is determined by at least one K0 value corresponding to the first SLIV row in the TDRA table; or,

The second time domain offset is based on the time domain offset between the time unit corresponding to the second SLIV in the TDRA table and the first time unit, and the second SLIV is the time domain offset in the TDRA table The SLIV other than the first SLIV in the first SLIV row in the , or, in the case where time-domain binding feedback is configured, the second SLIV is the first SLIV in the TDRA table The last SLIV in the first SLIV group in the SLIV row, where the first SLIV group is determined according to time-domain binding feedback parameters.
The method according to any one of claims 10 to 15, wherein the SLIV is an effective SLIV.
The method according to claim 16, wherein the SLIV is an effective SLIV comprising:

The candidate physical channel receiver opportunity corresponding to the SLIV is effectively scheduled; or,

The first device may be scheduled to perform physical channel reception according to the SLIV.
The method according to any one of claims 1 to 17, wherein the first control information received by the first device schedules at least one physical channel, and the first control information corresponds to the first control information format, The first HARQ-ACK codebook includes HARQ-ACK information corresponding to the at least one physical channel.
The method according to claim 18, wherein a first physical channel of the at least one physical channel corresponds to a first time unit, wherein a candidate physical channel receiver on the first time unit corresponds to a first feedback bit The number Y, the first physical channel corresponds to the second number of feedback bits X, and the first number of feedback bits is different from the second number of feedback bits.
The method according to claim 19, wherein the second feedback bit number X is smaller than the first feedback bit number Y, and the X HARQ-ACK information bits corresponding to the first physical channel are located in the Y HARQ - The first X HARQ-ACK information bits among the ACK information bits.
The method according to any one of claims 1 to 20, wherein, when time-domain bundling feedback and air-domain bundling feedback are configured, the bundling feedback mode of the first device is:

The air domain binding is performed first, and then the time domain binding is performed.
The method according to any one of claims 1 to 20, wherein, when time-domain bundling feedback is configured, when the configured transport block TB feedback length of the first device is greater than 1, the second The binding feedback method of a device is:

The air domain binding is performed first, and then the time domain binding is performed.
The method according to any one of claims 1 to 22, wherein, when time-domain bundling feedback is configured, the first device assumes that the unscheduled candidate physical channel receives The HARQ-ACK information corresponding to the opportunity is ACK.
A method according to any one of claims 1 to 23, wherein,

The first device is a terminal, the second device is a network device, the physical channel includes a physical downlink shared channel PDSCH, and the feedback resources in the first feedback time unit include uplink feedback resources; or,

The first device is a first terminal, the second device is a second terminal, the physical channel includes a physical sidelink shared channel PSSCH, and the feedback resources in the first feedback time unit include sidelink feedback resources.
The method according to any one of claims 1 to 24, wherein the first device is configured with Type-1 HARQ-ACK codebook feedback.
A hybrid automatic repeat request response HARQ-ACK codebook feedback method, the method comprising:

The second device receives the first HARQ-ACK codebook sent by the first device through the feedback resource on the first feedback time unit;

The second device determines, according to the first HARQ-ACK codebook, that a physical channel on a time unit in the first time unit group receives corresponding HARQ-ACK information;

Wherein, the first HARQ-ACK codebook includes the HARQ-ACK information corresponding to the candidate physical channel receivers on the time units in the first time unit group, and the time units in the first time unit group correspond to the The first feedback time unit;

Wherein, the first device is configured with a first control information format, the maximum number of physical channels scheduled by the first control information format is M, and the M is greater than or equal to 2.
The method according to claim 26, wherein the number of feedback bits corresponding to the first HARQ-ACK codebook is determined according to at least one of the following:

The number of feedback bits corresponding to a candidate physical channel receiver in the first time unit group;

The number of feedback bits corresponding to a candidate physical channel receiver opportunity on a time unit in the first time unit group;

The number of candidate physical channel receiver opportunities in one time unit in the first time unit group.
The method of claim 27, wherein,

The first candidate physical channel receiver in the first time unit group corresponds to the first number of feedback bits, and the first candidate physical channel receiver corresponds to the case where a physical channel is scheduled to be received by the first control information format; and/ or,

The second candidate physical channel receivers in the first time unit group correspond to the second number of feedback bits, and the second candidate physical channel receivers correspond to the situation that the first control information format schedules reception of at least two physical channels.
The method according to claim 28, wherein the number of feedback bits corresponding to a candidate physical channel receiver on a time unit in the first time unit group includes at least one of the following situations:

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group includes the first candidate physical channel receiver opportunity and the second candidate physical channel receiver opportunity, and a candidate physical channel receiver opportunity on the time unit The number of feedback bits corresponding to the receiver is the larger value of the first number of feedback bits and the second number of feedback bits;

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the first candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the The number of first feedback bits;

The candidate physical channel receiver opportunity corresponding to a time unit in the first time unit group is the second candidate physical channel receiver opportunity, and the number of feedback bits corresponding to a candidate physical channel receiver opportunity on the time unit is the The second feedback bit number.
A method according to any one of claims 27 to 29, wherein,

A candidate physical channel receiver on a first time unit in the first time unit group corresponds to the first number of feedback bits; and/or,

A candidate physical channel receiver on a second time unit in the first time unit group corresponds to the second number of feedback bits.
The method according to any one of claims 28 to 30, wherein the first number of feedback bits is determined according to at least one of the following situations:

The first number of feedback bits is determined according to the feedback length of the transport block TB;

The first number of feedback bits is determined according to the code block group CBG feedback length;

In a case where spatial domain bundling feedback is configured, the first number of feedback bits is 1.
The method according to any one of claims 28 to 31, wherein the second number of feedback bits is determined according to at least one of the following conditions:

The second number of feedback bits is determined according to the feedback length of the transport block TB;

The second feedback bit number is 1;

In the case of configured airspace bundling feedback, the second feedback bit number is 1;

In a case where time-domain bundling feedback is configured, the second number of feedback bits is 1.
The method of any one of claims 28 to 32, wherein the first number of feedback bits and the second number of feedback bits are different.
The method according to any one of claims 28 to 33, wherein the first number of feedback bits is greater than or equal to the second number of feedback bits.
The method according to any one of claims 26 to 34, wherein the time units in the first time unit group are determined according to at least one of the following: HARQ feedback timing set, time domain resource allocation TDRA table, TDRA At least one row of symbol start length in the table indicates SLIV, where one SLIV corresponds to one candidate physical channel receiving opportunity.
The method according to claim 35, wherein the time units in the first time unit group are determined according to the HARQ feedback timing set, comprising:

The first time domain offset between the first time unit in the first time unit group and the first feedback time unit is determined according to the HARQ feedback timing indication information in the HARQ feedback timing set, where , the first time unit is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table.
The method according to claim 35 or 36, wherein the time units in the first time unit group are determined according to at least one line of symbol start length indication SLIV in the TDRA table, including:

The first time unit in the first time unit group is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table; and/or,

The second time unit in the first time unit group is a time unit corresponding to a second SLIV, and the second SLIV is a time unit other than the first SLIV in the first SLIV row in the TDRA table SLIV.
The method according to claim 35 or 36, wherein, in the case of configuring time-domain bundling feedback, the time units in the first time unit group are based on at least one line of symbol start length in the TDRA table Instructions determined by SLIV include:

The first time unit in the first time unit group is the time unit corresponding to the first SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table; or,

The second time unit in the first time unit group is the time unit corresponding to the second SLIV, and the second SLIV is the last one in the first SLIV group in the first SLIV row in the TDRA table SLIV, wherein the first SLIV group is determined according to time-domain bonding feedback parameters.
The method according to claim 35 or 36, wherein the time units in the first time unit group are determined according to the TDRA table, comprising:

The time domain offset between the second time unit in the first time unit group and the first time unit is a second time domain offset, and the second time domain offset is based on the TDRA table determined, wherein the first time unit is the time unit corresponding to the first initial length indication SLIV, and the first SLIV is the last SLIV in the first SLIV row in the TDRA table.
The method according to claim 39, wherein the first SLIV row includes at least two SLIVs, and the second time domain offset is determined according to the TDRA table, comprising:

The second time domain offset is determined according to at least one K0 value corresponding to the first SLIV row in the TDRA table; or,

The second time domain offset is based on the time domain offset between the time unit corresponding to the second SLIV in the TDRA table and the first time unit, and the second SLIV is the time domain offset in the TDRA table The SLIV other than the first SLIV in the first SLIV row in the , or, in the case where time-domain binding feedback is configured, the second SLIV is the first SLIV in the TDRA table The last SLIV in the first SLIV group in the SLIV row, where the first SLIV group is determined according to time-domain binding feedback parameters.
The method of any one of claims 35 to 40, wherein the SLIV is an effective SLIV.
The method of claim 41, wherein the SLIV is an active SLIV comprising:

The candidate physical channel receiver opportunity corresponding to the SLIV is effectively scheduled; or,

The first device may be scheduled to perform physical channel reception according to the SLIV.
The method according to any one of claims 26 to 42, wherein the second device sends to the first device first control information for scheduling at least one physical channel, the first control information corresponding to the The first control information format, the first HARQ-ACK codebook includes HARQ-ACK information corresponding to the at least one physical channel.
The method according to claim 43, wherein a first physical channel of the at least one physical channel corresponds to a first time unit, wherein a candidate physical channel receiver on the first time unit corresponds to a first feedback bit The number Y, the first physical channel corresponds to the second number of feedback bits X, and the first number of feedback bits is different from the second number of feedback bits.
The method according to claim 44, wherein the second feedback bit number X is smaller than the first feedback bit number Y, and the X HARQ-ACK information bits corresponding to the first physical channel are located in the Y HARQ - The first X HARQ-ACK information bits among the ACK information bits.
The method according to any one of claims 26 to 45, wherein, when the first device is configured with spatial domain bundling feedback, the second device according to the first HARQ-ACK codebook The HARQ-ACK information of one codeword determines the HARQ-ACK information of at least two codewords.
The method according to any one of claims 26 to 45, wherein, when the first device is configured with time-domain bundling feedback, the second device according to the first HARQ-ACK codebook The HARQ-ACK information of one physical channel determines the HARQ-ACK information of at least two physical channels.
The method according to any one of claims 26 to 47, wherein when the first device is configured with time-domain bundling feedback, the second device assumes that the unscheduled candidate physical channel receivers will correspond to The HARQ-ACK information is ACK.
A method according to any one of claims 26 to 48, wherein,

The first device is a terminal, the second device is a network device, the physical channel includes a physical downlink shared channel PDSCH, and the feedback resources in the first feedback time unit include uplink feedback resources; or,

The first device is a first terminal, the second device is a second terminal, the physical channel includes a physical sidelink shared channel PSSCH, and the feedback resources in the first feedback time unit include sidelink feedback resources.
The method according to any one of claims 26 to 49, wherein the first device is configured with Type-1 HARQ-ACK codebook feedback.
A hybrid automatic repeat request response HARQ-ACK codebook feedback device, comprising:

The first determination unit is configured to determine a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes HARQ-ACK information corresponding to candidate physical channel receiver opportunities on time units in the first time unit group, the The time unit in the first time unit group corresponds to the first feedback time unit;

a sending unit configured to send the first HARQ-ACK codebook to the second device through the feedback resource in the first feedback time unit;

Wherein, the first device is configured with a first control information format, the maximum number of physical channels scheduled by the first control information format is M, and the M is greater than or equal to 2.
A hybrid automatic repeat request response HARQ-ACK codebook feedback device, comprising:

The receiving unit is configured to receive the first HARQ-ACK codebook sent by the first device through the feedback resource on the first feedback time unit;

The second determination unit is configured to determine, according to the first HARQ-ACK codebook, the corresponding HARQ-ACK information received by the physical channel on the time unit in the first time unit group;

Wherein, the first HARQ-ACK codebook includes the HARQ-ACK information corresponding to the candidate physical channel receivers on the time units in the first time unit group, and the time units in the first time unit group correspond to the The first feedback time unit;

Wherein, the first device is configured with a first control information format, the maximum number of physical channels scheduled by the first control information format is M, and the M is greater than or equal to 2.
A communication device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to invoke and run the computer program stored in the memory, and execute the computer program described in any one of claims 1 to 25 Methods.
A communication device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and perform the process described in any one of claims 26 to 50 Methods.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 25.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device equipped with the chip executes the method as claimed in any one of claims 26 to 50.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 25.
A computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 26 to 50.
A computer program product comprising computer program instructions causing a computer to perform the method as claimed in any one of claims 1 to 25.
A computer program product comprising computer program instructions for causing a computer to perform the method as claimed in any one of claims 26 to 50.
A computer program which causes a computer to carry out the method according to any one of claims 1 to 25.
A computer program that causes a computer to perform the method as claimed in any one of claims 26 to 50.