CN114128186A

CN114128186A - Communication method and device

Info

Publication number: CN114128186A
Application number: CN201980098414.3A
Authority: CN
Inventors: 王俊伟; 杨帆
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2022-03-01
Anticipated expiration: 2039-09-25
Also published as: CN114128186B; WO2021056287A1

Abstract

The application discloses a communication method and a communication device, which are used for solving the problem that a receiving end cannot effectively feed back HARQ-ACK information in time in the prior art. The method comprises the following steps: a receiving end acquires feedback channel configuration information which comprises 1 or more feedback channel resource combinations; receiving data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating sending information of N service data, determining a first feedback channel resource combination in 1 or more feedback channel resource combinations, and each service data corresponds to one feedback channel resource in the first feedback channel resource combination, and receiving the N service data which are scheduled and sent by the sending end; sending HARQ-ACK information to a sending end through a feedback channel resource corresponding to the nth service data; the time interval between the end time of the nth service data and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method and apparatus.

Background

In communication, data retransmission is generally performed in order to improve reliability of data transmission between a transmitting end and a receiving end. Specifically, after receiving data, the receiving end performs processing such as channel estimation, demodulation, decoding, and the like, and then feeds back hybrid automatic feedback request (HARQ) -Acknowledgement (ACK) information according to a decoding result. Wherein, the receiving processing time of the receiving end is defined by the current standard as: an interval size from a last symbol (orthogonal frequency division multiplexing (OFDM) symbol) of data (e.g., service data) transmitted by a transmitting end to a first symbol of HARQ-ACK information fed back by a receiving end, where a reception processing time of the receiving end may be considered as a processing capability of the receiving end.

At present, when data retransmission is performed on an unlicensed spectrum, the main process may be: a sending end carries out an interception process (namely a listen before talk (LTB) mechanism on a standard) before sending data, and when determining that a current channel is idle, the sending end sends the data; and the receiving end receives and demodulates the data and feeds back the HARQ-ACK information on the appointed uplink feedback resource. Wherein the receiving end may perform necessary LBT before feeding back the HARQ-ACK information.

Since a certain time interval is needed from the time when the last symbol of the data is received at the receiving end to the time when the HARQ-ACK information starts to be fed back, wherein the size of the time interval depends on the processing capability of the receiving end, the time interval needs at least three symbols when the subcarrier interval is 15KHz in the current standard. In the interval of the three symbols, the transmitting end does not send any data, that is, the channel belongs to the unoccupied time, at this time, if the receiving end feeds back the HARQ-ACK information, an LBT process (for example, LBT CAT4 with a longer time) needs to be performed, and in the unoccupied time of the channel, it is possible that the channel is preempted and used by the devices of other systems, which causes the receiving end to fail to perform LBT, and thus the HARQ-ACK information cannot be fed back. The receiving end cannot timely and effectively feed back the HARQ-ACK information, and the transmitting end may not quickly retransmit data, so that the data transmission efficiency is reduced, and the user experience is affected.

Disclosure of Invention

The application provides a communication method and device, which are used for solving the problem that in the prior art, a receiving end cannot effectively feed back HARQ-ACK information in time, and a sending end can not quickly retransmit data, so that the data transmission efficiency is reduced.

In a first aspect, the present application provides a communication method, which may include: a receiving end acquires feedback channel configuration information, wherein the channel configuration information comprises 1 or more feedback channel resource combinations, and each feedback channel resource combination comprises at least two continuous feedback channel resources in a time domain; the receiving end receives data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of N service data; the receiving end determines a first feedback channel resource combination in 1 or more feedback channel resource combinations contained in the feedback channel configuration information; the receiving end receives N service data scheduled and sent by the sending end, and sends HARQ-ACK information to the sending end through feedback channel resources in the first feedback channel resource combination corresponding to the nth service data; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; n is a positive integer; m is an integer greater than or equal to 2, and N is greater than or equal to M.

By the method, the receiving end can effectively feed back the HARQ-ACK information in time, so that the transmitting end can quickly retransmit the data, and the data transmission efficiency can be improved.

In one possible design, the correspondence between the N service data and the M feedback channel resources may include: when the M is equal to 2, the first N-1 service data correspond to the 1 st feedback channel resource, and the Nth service data correspond to the 2 nd feedback channel resource; or, when M is equal to 2, the 1 st to kth service data correspond to the 1 st feedback channel resource, and the K +1 th to nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N; or the lth group service data in the N service data corresponds to the lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken from 1 to M.

By the method, the subsequent receiving end can accurately feed back the HARQ-ACK information on the corresponding feedback channel resource.

In one possible design, when the channel configuration information includes a plurality of feedback channel resource combinations, the data scheduling information further includes an identifier of the first feedback channel resource combination. Thus, the receiving end can determine accurate feedback channel resources.

In one possible design, a first time interval is smaller than a set time threshold, where the first time interval is a time interval between a time when the nth service data ends and a time when the receiving end sends the first data or signal to the transmitting end. The first data may be traffic channel data (e.g., PUSCH channel data or pscch channel data), and the first signal may be a Sounding Reference Signal (SRS), a channel state information measurement reference signal (CSI-RS), or a Physical Random Access Channel (PRACH). Thus, after the first time interval is smaller than a certain threshold, the receiving end does not perform LBT or only performs an LTB CAT 2, or only performs LBT CAT4 with a shorter duration of a contention window, thereby reducing the interval between receiving and transmitting and achieving the purpose of reducing the channel loss probability.

In one possible design, the sum of the time domain length occupied by the first M-1 feedback channel resources and the time length of the first time interval is greater than or equal to the receiving processing time of the receiving end for the service data corresponding to the mth feedback channel resource. Therefore, the interval between receiving and sending can be reduced, the channel loss probability is reduced, the complexity in design is avoided, and the user experience can be improved.

In one possible design, when the time domain lengths occupied by the M feedback channel resources are not completely the same, the time domain length occupied by the mth feedback channel resource is smaller than the time domain length occupied by any one of the first M-1 feedback channel resources. Therefore, the receiving end can effectively feed back the HARQ-ACK information in time, the transmitting end can quickly retransmit the data, and the data transmission efficiency can be improved.

In one possible design, the M feedback channel resources are PUCCH channel resources or PSFCH channel resources.

In one possible design, the frequency domain resources of the N service data are the same, and are continuous in the time domain, and the time domain lengths are the same.

In one possible design, the data scheduling information includes an identifier of a feedback channel resource corresponding to the first service data.

In a second aspect, the present application provides a method of communication, which may include: a sending end sends data scheduling information to a receiving end, wherein the data scheduling information is used for indicating the sending information of N service data; the sending end dispatches and sends the N service data to the receiving end, and receives HARQ-ACK information sent by the receiving end through feedback channel resources in a first feedback channel resource combination corresponding to the nth service data; n is a positive integer, N is greater than or equal to M; wherein M is the number of feedback channel resources included in the first feedback channel resource combination, and M is an integer greater than or equal to 2; the first feedback channel resource combination is one of one or more feedback channel resource combinations contained in feedback channel configuration information configured for the receiving end; the N service data and M feedback channel resources in the first feedback resource channel combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data.

In one possible design, a first time interval is smaller than a set time threshold, where the first time interval is a time interval between a time when the nth service data ends and a time when the receiving end sends the first data or signal to the sending end. The first data may be traffic channel data (e.g., PUSCH channel data or pscch channel data), and the first signal may be an SRS, or a CSI-RS, or a PRACH. Thus, after the first time interval is smaller than a certain threshold, the receiving end does not perform LBT or only performs an LTB CAT 2, or only performs LBT CAT4 with a shorter duration of a contention window, thereby reducing the interval between receiving and transmitting and achieving the purpose of reducing the channel loss probability.

In a third aspect, the present application provides a communication method, which may include: a receiving end acquires feedback channel configuration information, wherein the channel configuration information comprises 1 or more feedback channel resource combinations, and each channel combination comprises at least one feedback channel resource and one or more data channel resources; the receiving end receives data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of N service data; the receiving end determines a first feedback channel resource combination in 1 or more feedback channel resource combinations contained in the feedback channel configuration information; the receiving end receives the N service data scheduled and sent by the sending end; sending one or more data to the sending end through one or more data channel resources in the first feedback channel resource combination, and sending HARQ-ACK information to the sending end through a feedback channel resource in the first feedback channel resource combination corresponding to the nth service data; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain; n is a positive integer; m is an integer greater than or equal to 1, and N is greater than or equal to M.

In one possible design, the correspondence between the N service data and the M feedback channel resources includes: when M is equal to 1, the N service data correspond to the 1 feedback channel resource; or, when M is equal to 2, the first N-1 service data corresponds to the 1 st feedback channel resource, and the nth service data corresponds to the 2 nd feedback channel resource; or, when M is equal to 2, the 1 st to kth service data correspond to the 1 st feedback channel resource, and the K +1 th to nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N; or the lth group service data in the N service data corresponds to the lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken from 1 to M.

In one possible design, the sum of the time lengths of the second time interval and the first time interval is greater than or equal to the receiving processing time of the receiving end for the service data corresponding to the mth feedback channel resource; the second time interval is a time domain length occupied by the one or more data channel resources and a time domain length occupied by the first M-1 feedback channel resources. Therefore, the interval between receiving and sending can be reduced, the channel loss probability is reduced, the complexity in design is avoided, and the user experience can be improved.

In a fourth aspect, the present application provides a communication method, which may include: a sending end sends data scheduling information to a receiving end, wherein the data scheduling information is used for indicating the sending information of N service data; the sending end dispatches and sends the N service data to the receiving end, and receives one or more data sent by the receiving end through one or more data channel resources in a first feedback channel resource combination and HARQ-ACK information sent by feedback channel resources in the first feedback channel resource combination corresponding to the nth service data; wherein N is a positive integer, and N is greater than or equal to M; m is the number of feedback channel resources contained in the first feedback channel resource combination, and M is an integer greater than or equal to 1; the first feedback channel resource combination is one of one or more feedback channel resource combinations contained in feedback channel configuration information configured for the receiving end; the N service data and M feedback channel resources in the first feedback resource channel combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; each feedback channel resource combination comprises at least one feedback channel resource and one or more data channel resources; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data.

In a fifth aspect, the present application further provides a receiving end, which has a function of implementing the receiving end in the method example of the first aspect or the third aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the receiving end includes a processing unit and a transceiver unit, and these units may perform corresponding functions in the method example of the first aspect or the third aspect, for specific reference, detailed description in the method example is given, and details are not repeated here.

In a possible design, the structure of the receiving end includes a transceiver and a processor, and optionally may further include a memory, the transceiver is used for transceiving data (information or signals, etc.) and performing communication interaction with other devices in the communication system, and the processor is configured to support the receiving end to perform corresponding functions of the receiving end in the method of the first aspect or the third aspect. The memory is coupled to the processor and holds the program instructions and data necessary for the receiving end.

In a sixth aspect, the present application further provides a sending end, which has a function of implementing the sending end in the method example of the second aspect or the fourth aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible design, the structure of the sending end includes a processing unit and a transceiver unit, and these units may perform corresponding functions in the method example of the second aspect or the fourth aspect, for which specific reference is made to detailed description in the method example, and details are not repeated here.

In a possible design, the structure of the transmitting end includes a transceiver and a processor, and optionally may further include a memory, where the transceiver is used for transceiving data (information or signals, etc.) and performing communication interaction with other devices in the communication system, and the processor is configured to support the transmitting end to perform corresponding functions of the transmitting end in the method of the second aspect or the fourth aspect. The memory is coupled to the processor and stores program instructions and data necessary for the sender.

In a seventh aspect, the present application further provides a communication system, where the communication system includes at least one of the receiving end and the transmitting end mentioned in the above design. Further, the receiving end in the communication system may perform any one of the methods performed by the receiving end, and the transmitting end in the communication system may perform any one of the methods performed by the transmitting end.

In a tenth aspect, the present application provides a computer storage medium having stored thereon computer-executable instructions for causing the computer, when invoked by the computer, to perform any of the methods described above.

In an eleventh aspect, the present application provides a computer program product containing instructions which, when run on a computer, cause the computer to perform any of the methods described above.

In a twelfth aspect, the present application provides a chip, coupled to a memory, for reading and executing program instructions stored in the memory to implement any of the above methods.

Drawings

Fig. 1 is a schematic structural diagram of a communication system provided in the present application;

fig. 2 is a flow chart of a communication method provided herein;

fig. 3 is a schematic diagram of a resource combination including 3 PUCCH resources of the same time domain length provided in the present application;

fig. 4 is a schematic diagram of a scheduling and feedback process of 3 service data at a transmitting end and a receiving end according to the present application;

fig. 5 is a schematic view of a resource combination including 2 PUCCH resources with different time domain lengths according to the present application;

fig. 6 is a schematic diagram of a scheduling and feedback process of 4 service data at a transmitting end and a receiving end according to the present application;

FIG. 7 is a flow chart of another method of communication provided herein;

fig. 8 is a schematic diagram of a resource combination including 1 data channel resource and 1 PUCCH resource according to the present invention;

fig. 9 is a schematic diagram of a scheduling and feedback process of 4 service data at a transmitting end and a receiving end according to the present application;

FIG. 10 is a diagram illustrating an indication of feedback channel resources provided herein;

FIG. 11 is a schematic illustration of an indication of another feedback channel resource provided herein;

fig. 12 is a schematic structural diagram of a receiving end according to the present application;

fig. 13 is a schematic structural diagram of a transmitting end provided in the present application;

fig. 14 is a structural diagram of a receiving end provided in the present application;

fig. 15 is a structural diagram of a transmitting end according to the present application.

Detailed Description

The communication method and the communication device provided by the embodiment of the application are used for solving the problem that in the prior art, a receiving end cannot effectively feed back HARQ-ACK information in time, and a sending end can not fast forward data retransmission, so that the data transmission efficiency is reduced. The method and the device are based on the same technical concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

In the description of the present application, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor order.

In the description of the present application, "at least one" specifically means one or more; plural means two or more.

In order to more clearly describe the technical solutions of the embodiments of the present application, the following describes in detail a communication method and apparatus provided by the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 shows an architecture of a possible communication system to which the communication method provided in the embodiment of the present application is applicable, where the architecture of the communication system includes a network device and at least one terminal device, where:

the network device is a device with a wireless transceiving function or a chip that can be set in the network device, and the network device includes but is not limited to: next generation base station (gNB), evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (e.g., home NodeB or home Node B, HNB), baseband unit (BBU), Access Point (AP) in wireless fidelity (WIFI) system, wireless relay Node, wireless backhaul Node, transmission point (transmission and reception point, either transfer point or transmission point, etc.), and may also be a network Node constituting the gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, TP), etc.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include a Radio Unit (RU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB, for example, the CU implements Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP) layers, and the DU implements Radio Link Control (RLC), Medium Access Control (MAC) and Physical (PHY) layers. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as RRC layer signaling or PHCP layer signaling, may also be considered to be transmitted by the DU or by the DU + RU under this architecture. It is to be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. The CU may be divided into network devices in the access network RAN, or may be divided into network devices in the core network CN, which is not limited to this.

The terminal device may also be referred to as a User Equipment (UE), a Subscriber Station (SS), an access terminal, a subscriber unit, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. The embodiments of the present application do not limit the application scenarios. In the present application, a terminal device having a wireless transceiving function and a chip that can be installed in the terminal device are collectively referred to as a terminal device.

The transmission between the network device and the terminal device can be realized through a cellular link, the transmission between the network device and the terminal device can be realized through radio waves, and the transmission can also be realized through visible light, laser, infrared, light quantum, power lines, optical fibers, coaxial cables, copper stranded wires and the like. The transmission between the terminal equipment and the terminal equipment is carried out through a side link (sidelink), and the transmission between the terminal equipment and the terminal equipment can be carried out through radio waves, visible light, laser, infrared, light quantum, power lines, optical fibers, coaxial cables, copper stranded wires and the like.

In the application, the network device can be used as a sending end, the terminal device is used as a receiving end, and the network device and the terminal device perform a data retransmission process; or one terminal device serves as a sending end, the other terminal device serves as a receiving end, and the two terminal devices perform data retransmission.

It should be noted that the communication system shown in fig. 1 may be, but is not limited to, a fifth Generation (5th Generation, 5G) system, such as a new radio access technology (NR), and optionally, the method of the embodiment of the present application is also applicable to various future communication systems, such as a 6G system or other communication networks.

In the present application, the transmission wireless link may be based on a Uu port from the base station to the terminal device, or may be based on a PC-5 port from the terminal device to the terminal device.

When communication from the base station to the terminal device is performed, the data channel is a Physical downlink shared data channel (PDSCH), the related data channel is used for transmitting data, the control channel is a Physical Downlink Control Channel (PDCCH), and the related control channel transmits control signaling or scheduling signaling. The feedback channel is a Physical Uplink Control Channel (PUCCH), and is used to transmit feedback information, such as HARQ-ACK information, sent by the receiving end to the sending end.

When communication from the terminal device to the terminal device is performed, the data channel is a physical sidelink shared channel (PSCCH), the related data channel is used for transmitting data, the control channel is a Physical Sidelink Control Channel (PSCCH), and the related control channel transmits control signaling or scheduling signaling. The feedback channel is a Physical Sidelink Feedback Channel (PSFCH), and the feedback channel is used for transmitting feedback information, such as HARQ-ACK information, sent by the receiving end to the sending end.

It should be noted that, in the present application, the exemplary PUCCH may generally refer to a feedback channel in a communication system, the PDSCH may generally refer to a data channel of a terminal device, and the PDCCH may generally refer to a control channel in the communication system.

The symbols in this application are time units, and in an actual communication system, may be broadly referred to as possible time units.

In the following, for the sake of facilitating understanding of the embodiments of the present application, first, concepts and basic knowledge related to the embodiments of the present application will be described.

(1) HARQ information feedback resource

For HARQ-ACK information fed back by the terminal equipment, a most common feedback channel for Uu port transmission (link between the terminal equipment and the base station) is a Physical Uplink Control Channel (PUCCH); for side link transmission (terminal device to terminal device), the most commonly used feedback channel is the Physical Sidelink Feedback Channel (PSFCH).

In order to meet different coverage performance requirements and different sizes of information carrying HARQ-ACK, five formats are defined in the Physical Uplink Control Channel (PUCCH) in NR, as shown in table 1.

Table 1 PUCCH formats

PUCCH format	Number of occupied symbols	Number of bit (bit) information
0	1–2	≤2
1	4–14	≤2
2	1–2	>2
3	4–14	>2
4	4–14	>2

Specifically, in order to facilitate the terminal device to feed back HARQ-ACK information, the protocol defines resources of each PUCCH format, and the contents may be as follows:

PUCCH format 0 uses sequences to carry bit information; the format content of PUCCH format 0 may be as shown in table 2 below:

table 2 PUCCH format 0 definitions

Description of the drawings: if the terminal device transmits HARQ-ACK with PUCCH format 0, the terminal device determines m₀And m_CSTo calculate a cyclic shift α, where m₀Is determined by initialCyclicShift, m_CSIs determined according to the HARQ-ACK. m is₀Is a base station configuration and is therefore known to both terminal equipment and base stations. m is_CSThe base station determines whether to be ACK or NACK through blind detection and retry. PUCCH occupies 1 Physical Resource Block (PRB) in total.

Table 3 PUCCH format 1 definition content

PUCCH occupies 1 PRB in total.

Table 4 PUCCH format 2 definition contents

Table 5 PUCCH format 3 definitions

Table 6 PUCCH format 4 definitions

Note that, in the above table: nrofPRBs, which represents frequency domain parameters of PUCCH, may occupy a continuous frequency domain or a discontinuous frequency domain (e.g., a fixed-interval comb distribution).

(2) LTB of unlicensed spectrum

The LTB scheme in 4 is defined in 3 GPP:

LBT CAT 1: there is no LBT (because there are regions and countries that do not mandate LBT mechanisms to be implemented on unlicensed bands).

LBT CAT 2: there is no random backoff LBT. Frames of fixed duration are employed, including channel occupancy time and idle time. Clear Channel Assessment (CCA) is performed before data transmission is performed, and if the channel is clear, data transmission is performed in a subsequent channel occupation time, otherwise, data cannot be transmitted in the whole frame period. The length of time to determine whether the channel is idle before the transmitting end transmits data is determined.

LBT CAT 3: random backoff LBT with a fixed length contention window is used. And a frame structure with an unfixed frame period is adopted, and a mode based on load change is adopted. The contention window is fixed in length, and an extended CCA (ECCA) is used, and when it is detected that the channel is idle, data transmission may start immediately, otherwise, the contention window, i.e., a fixed number of ECCA windows, is entered.

LBT CAT 4: random back-off LBT with a non-fixed length contention window is used. After detecting that the channel is occupied or the maximum transmission time is reached, the transmitting end enters a contention window. Different from the fixed-length contention window, the sending end can change the length of the contention window, and the standard is divided into 4 priorities according to different service types, wherein the 4 priorities are respectively used for different COT lengths and parameters of the contention window length.

(3) Processing capability of received data

And after receiving the data, the receiving end performs receiving processing such as channel estimation, demodulation, decoding and the like, and then feeds back HARQ-ACK information according to a decoding result. The receiving processing time of the terminal device is discussed and defined by the current standard, and is defined as the size of an interval from the last symbol of traffic data (e.g. PDSCH data) to the first symbol of a channel (e.g. PUCCH) feeding back HARQ-ACK information, where the interval is determined according to the capability (capability 1, UE CAP #1) of the terminal device, for example, in current R15, the value of the interval may be as shown in tables 7 and 8 below:

TABLE 7 PDSCH treatment time (capability 1)

TABLE 8 PDSCH treatment time (capability2)

Where μ represents the subcarrier spacing of the data channel, the spacing may be calculated as 15KHz x 2 μ.

Since a certain time interval is needed from the time when the last symbol of the data is received at the receiving end to the time when the HARQ-ACK information starts to be fed back, wherein the size of the time interval depends on the processing capability of the receiving end, the time interval needs at least three symbols when the subcarrier interval is 15KHz in the current standard. In the interval of the three symbols, the transmitting end does not send any data, that is, the channel belongs to the unoccupied time, at this time, if the receiving end feeds back the HARQ-ACK information, an LBT process (for example, LBT CAT4 with a longer time) needs to be performed, and in the unoccupied time of the channel, it is possible that the channel is preempted and used by the devices of other systems, which causes the receiving end to fail to perform LBT, and thus the HARQ-ACK information cannot be fed back. The receiving end cannot timely and effectively feed back the HARQ-ACK information, and the transmitting end may not fast forward data retransmission, so that the data transmission efficiency is reduced, and the user experience is affected. Based on the above, the present application provides a communication method, which can reduce the channel unoccupied time between data reception and HARQ-ACK transmission, thereby reducing the possibility of channel loss and improving the data transmission efficiency. The following describes the communication method provided in the embodiments of the present application in detail with reference to specific embodiments.

The embodiment of the present application provides a communication method, which is suitable for the communication system shown in fig. 1. Referring to fig. 2, a specific process of the method may include:

step 201, a receiving end obtains feedback channel configuration information, where the channel configuration information includes 1 or more feedback channel resource combinations, and each feedback channel resource combination includes at least two feedback channel resources with continuous time domains.

Step 202, a sending end receives and sends data scheduling information to the receiving end, wherein the data scheduling information is used for indicating the sending information of N service data; n is a positive integer.

Step 203, the receiving end determines a first feedback channel resource combination in 1 or more feedback channel resource combinations contained in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 2, and N is greater than or equal to M.

And step 204, the sending end dispatches and sends the N service data to the receiving end.

Step 205, the receiving end sends HARQ-ACK information to the sending end through the feedback channel resource in the first feedback channel resource combination corresponding to the nth service data.

In specific implementation, the receiving end is a terminal device, and the transmitting end may be a terminal device or a network device.

In an optional implementation manner, the receiving end obtains the configuration information of the feedback channel, where the receiving end obtains the configuration information of the feedback channel through different methods, and the path may be configuration by a sending end or a network device, or default configuration by a protocol. For example, when the transmitting end is a network device, the receiving end may obtain the feedback channel configuration information from the transmitting end; when the transmitting end is a terminal device, the receiving end may obtain the feedback channel configuration information from the transmitting end, or the receiving end may obtain the feedback channel configuration information from a network device accessed by the receiving end. Or, the receiving end directly obtains the feedback channel configuration information specified by the protocol.

In one implementation, when the sending end is a network device, the service data may be Physical downlink shared data channel (PDSCH) data; the feedback channel resource corresponding to the traffic data may be a PUCCH channel resource. When the sending end is a terminal device, the service data may be physical sidelink shared channel (psch) data; the feedback channel resource corresponding to the traffic data may be a PSFCH channel resource. For convenience of description, in the following examples of the present application, PDSCH data and PUCCH channel resources are used as examples for description, and it should be understood that the PSSCH data and the PSFCH channel resources are similar, and the detailed description of the present application is omitted.

In one implementation, when the sending end is a network device, the data scheduling information is sent through a Physical Downlink Control Channel (PDCCH); when the transmitting end is a terminal device, the data scheduling information is transmitted through a Physical Sidelink Control Channel (PSCCH).

Illustratively, when the channel configuration information includes a plurality of feedback channel resource combinations, the data scheduling information further includes an identifier of the first feedback channel resource combination. Thus, the feedback channel resource combination corresponding to the N service data can be indicated. For example, PUCCH Resource combination identification (PUCCH-Resource-combining-Id) may be used in the data scheduling information to indicate which one of the feedback channel Resource combinations is specifically used.

In an optional implementation manner, the correspondence between the N service data and the M feedback channel resources may include the following three cases:

case a1, when M is equal to 2, the first N-1 traffic data corresponds to the 1 st feedback channel resource, and the nth traffic data corresponds to the 2 nd feedback channel resource.

Case a2, when M is equal to 2, the 1 st to kth service data correspond to the 1 st feedback channel resource, and the K +1 th to nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N.

In case a3, an lth group of service data in the N service data corresponds to an lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken over 1 to M.

In the above case a3, the correspondence relationship may be configured through higher layer signaling or indicated through the data scheduling information. For example, a sequence number of the last traffic data of each group of traffic data may be indicated, for example, in NR, the specific indication information may be PDSCH _ mapped to PUCCH { k1, k2 … km }, where m denotes that m feedback channel resources are configured, k1 denotes that feedback from 1 to k1 PDSCH data corresponds to the 1 st feedback channel resource, k2 denotes that feedback from k1+1 to k2 PDSCH data corresponds to the 2 nd feedback channel resource, and km denotes that feedback from k (m-1) +1 to km PDSCH data corresponds to the m th feedback channel resource.

In an exemplary embodiment, a first time interval is smaller than a set time threshold, where the first time interval is a time interval between a time when the nth traffic data ends and a time when the receiving end transmits a first data or signal to the transmitting end. The first data may be traffic channel data (e.g., PUSCH channel data or pscch channel data), and the first signal may be an SRS, or a CSI-RS, or a PRACH. Thus, after the first time interval is smaller than a certain threshold, the receiving end does not perform LBT or only performs an LTB CAT 2, or only performs LBT CAT4 with a shorter duration of a contention window, thereby reducing the interval between receiving and transmitting and achieving the purpose of reducing the channel loss probability.

Specifically, the time domain lengths of the M feedback channel resources may be the same or different. When the time domain lengths occupied by the M feedback channel resources are not completely the same, the time domain length occupied by the Mth feedback channel resource is smaller than the time domain length occupied by any one feedback channel resource in the first M-1 feedback resources.

In an optional implementation manner, the frequency domain resources of the N service data are the same, and are consecutive in the time domain, and the time domain lengths are the same. Illustratively, the data scheduling information may include the following: frequency domain resource information indicating that all data blocks adopt the same frequency domain resource information; time domain resource information (i.e. transmission information) indicating a traffic channel, a time domain length, and a time domain length of a plurality of data blocks; and the new transmission data identifier indicates bit information occupied by each data block, for example, each data block occupies 1 bit.

Optionally, the data scheduling information may further include an identifier of a feedback channel resource corresponding to the first service data, that is, an HARQ process ID of the first data block. With the HARQ process ID of the first data block, the identification of the feedback channel resource (i.e., HARQ process ID) of the subsequent data block is added by 1 to the HARQ process ID of the previous data block.

In an optional manner, a sum of a time domain length occupied by the first M-1 feedback channel resources and a time length of the first time interval is greater than or equal to a receiving processing time of the receiving end for service data corresponding to the mth feedback channel resource. For example, assuming that the time domain length occupied by the first M-1 feedback channel resources is X symbols, the time length of the first time interval is Y symbols, and the receiving processing time of the receiving end for receiving the service data corresponding to the mth feedback channel resource is N1 symbols, X + Y > N1 or T (X) + T (Y) > T (N1) is required. Wherein X, Y and N1 are non-negative decimal. T () represents a time transfer function.

In one example, the time domain length of each feedback channel resource is the same:

it is assumed that each configured feedback channel resource combination includes 3 PUCCH resources, and all PUCCH resources are in PUCCH format 0, and details of the format are shown in table 2. For example, the contents of the defined PUCCH resource combination may be as shown in table 9 below:

contents of PUCCH resource combination defined in table 9

In the definition process, the time domain positions of the PUCCH resources are continuous. Assuming that the starting symbol of the time domain position of the PUCCH resource 1 is P, and the number of symbols of the three PUCCH resources is 2, the time domain position of the PUCCH resource 1 is P, P + 1; the time domain position of the PUCCH resource 2 is a symbol P +2, P + 3; the time domain position of the PUCCH resource 3 is the symbols P +4 and P +5, for example, a resource combination diagram of PUCCH resources including 3 same time domain lengths is shown in fig. 3.

Assuming that the PDSCH reception processing time is N1 ═ 3.5 symbols, since the time domain length of each PUCCH resource is 2 symbols, the time domain length of the first two PUCCH resources is 4 symbols (e.g., the protocol is defined as 40S), so as to satisfy the requirement that the last PDSCH data end time to the start time of PUCCH3 is greater than N1 (40S > N1). I.e. 4 symbols plus the first time interval is larger than N1, which is negligible here due to the small first time interval.

Assuming that the service data scheduled by the transmitting end is 3, that is, 3 data blocks (TBs) are scheduled, and the number of feedback channel resources included in the feedback channel resource combination is the same, the HARQ-ACK feedback of TB1 corresponds to PUCCH resource 1 by default, the HARQ-ACK feedback of TB2 corresponds to PUCCH resource 2, and the HARQ-ACK feedback of TB3 corresponds to PUCCH resource 3 by default.

In this example, a schematic process diagram of scheduling and feedback of 3 service data at the transmitting end and the receiving end can be shown in fig. 4.

In another example, the time domain length of each feedback channel resource is different:

it is assumed that each configured feedback channel resource combination includes 2 PUCCH resources, the formats of the 2 PUCCH resources are PUCCH format 3 and PUCCH format 0, and the specific format contents are respectively detailed in table 4 and table 2. For example, the contents of the defined PUCCH resource combination may be as shown in table 10 below:

table 10 defines contents of PUCCH resource combination

In the definition process, the PUCCH resource time domain positions are continuous. Assuming a starting symbol P of a PUCCH resource 1, the number of symbols of a first PUCCH resource is 4, and the number of symbols of a second PUCCH resource is 1, the time domain position of the PUCCH resource 1 comprises symbols P, P +1, P +2, and P + 3; the time domain position of the PUCCH resource 2 is symbol P +4, for example, a resource combination diagram including 2 PUCCH resources with different time domain lengths is shown in fig. 5.

Assuming that the PDSCH receiving process N1 is 3.5 symbols, since the time domain length of the PUCCH1 resource is 4 symbols (e.g., the protocol is defined as 4OS), the requirement that the time from the last PDSCH ending time to the start time of PUCCH2 is greater than N1 (4OS > N1) is satisfied, that is, 4 symbols plus the first time interval is greater than N1, and the first time interval is smaller and can be ignored.

Assuming that the number of the scheduled service data is 4, that is, 4 data blocks are scheduled, and the number of the feedback channel resources contained in the feedback channel resource combination is different, the protocol defaults that the HARQ-ACK feedback of TB1/TB2/TB3 corresponds to PUCCH resource 1, and the HARQ-ACK feedback of TB4 corresponds to PUCCH resource 2.

In this example, in order to meet the timing requirement of receiving data, demodulating and decoding by the receiving end, the data scheduling information may have the following limitations:

b1, the last TB data (TB 4 in this example), occupies the time length of PDSCH, and meets the processing timing requirement of one or more (such as TB3 in this example) in the past, for example, PDSCH3 for transmitting TB3, and the processing time requirement N1 is 8 symbols. The time domain length of PDSCH4 corresponding to TB4 is not less than 8 symbols, or not less than 8 symbols after adding the length of the first time interval.

b2, the last TB data (TB 4 in this example), the time length of occupying PDSCH and the configuration of reference signal, which satisfy the timing requirement of this data processing (e.g. require that the receiving process is completed before the PUCCH2 time arrives), there may be one or more of the following constraints:

1: processing according to a demodulation reference signal (DMRS) without an additional DMRS by default;

2: the data time domain length of the PDSCH is larger than a certain threshold, such as 7 symbols. Or the default data length is: the number of symbols between the last PDSCH ending to the 1 st feedback channel resource.

3: the modulation coding table (MCS index table) is default to a value (default to MCS index 0 in table 11) or lower than an offset value in the scheduling signaling (data scheduling information) (e.g., if offset is 4, assuming that the value indicated by the scheduling signaling is MCS _ index, the modulation order index of TB4 is max (MCS _ index-4, 0)).

Table 11 MCS index table

It should be noted that the above limitation is to enable the receiving end to complete demodulation and decoding of data in a shorter time after the data end time, so as to reduce the symbol length of the PUCCH and improve the utilization rate of air interface resources.

In this example, a schematic process diagram of scheduling and feedback of 4 traffic data at the transmitting end and the receiving end can be shown in fig. 6.

By adopting the communication method provided by the embodiment of the application, the interval between receiving and sending can be reduced, the channel loss probability is reduced, the receiving end can effectively feed back HARQ-ACK information in time, the sending end can quickly retransmit data, and the data transmission efficiency can be improved.

The embodiment of the present application further provides a communication method, which is suitable for the communication system shown in fig. 1. Referring to fig. 7, a specific process of the method may include:

step 701, a receiving end obtains feedback channel configuration information, where the channel configuration information includes 1 or more feedback channel resource combinations, and each channel combination includes at least one feedback channel resource and one or more data channel resources; wherein a time domain position of the one or more data channel resources precedes a time domain position of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain.

Step 702, a sending end sends data scheduling information to the receiving end, wherein the data scheduling information is used for indicating sending information of N service data; n is a positive integer.

Step 703, the receiving end determines a first feedback channel resource combination from 1 or more feedback channel resource combinations included in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 1, and N is greater than or equal to M.

Step 704, the sending end dispatches and sends the N service data to the receiving end.

Step 705, the receiving end sends one or more data to the sending end through one or more data channel resources in the first feedback channel resource combination, and sends HARQ-ACK information to the sending end through the feedback channel resources in the first feedback channel resource combination corresponding to the nth service data.

The specific implementation of the sending end and the receiving end may refer to the related description in the embodiment shown in fig. 2, and details are not repeated here.

Similarly, for a description of what the service data and the feedback channel resource are specifically, reference may also be made to the related description in the embodiment shown in fig. 2, and details are not repeated here.

In an optional implementation manner, the correspondence between the N service data and the M feedback channel resources may include the following four cases:

in case c1, when M is equal to 1, the N traffic data correspond to the 1 feedback channel resource.

Case c2, when M is equal to 2, the first N-1 traffic data corresponds to the 1 st feedback channel resource, and the nth traffic data corresponds to the 2 nd feedback channel resource.

Case c3, when M is equal to 2, the 1 st to kth service data correspond to the 1 st feedback channel resource, and the K +1 th to nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N.

In case c4, an lth group of service data in the N service data corresponds to an lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken over 1 to M.

Specifically, the case c4 is similar to the case a3 in the embodiment shown in fig. 2, and specific reference may be made to the specific description of the case a3, which is not described in detail herein.

In an exemplary embodiment, a first time interval is smaller than a set time threshold, where the first time interval is a time interval between a time when the nth traffic data ends and a time when the receiving end transmits a first data or signal to the transmitting end. The first data may be traffic channel data (e.g., PUSCH channel data or pscch channel data), and the first signal may be an SRS, or a CSI-RS, or a PRACH. Thus, after the first time interval is smaller than a certain threshold, the receiving end does not do LTB or only does one LTB CAT 2, thereby reducing the interval between receiving and transmitting and reducing the probability of channel loss.

Specifically, the time domain lengths of the M feedback channel resources may be the same or different. When the time domain lengths occupied by the M feedback channel resources are not completely the same, the time domain length occupied by the Mth feedback channel resource is smaller than the time domain length occupied by any one feedback channel resource in the first M-1 feedback resources. Such as: when M is 2, the time domain length of the first feedback channel resource is 3 symbols (the time domain length is greater than or equal to the value of the processing time N1 of the last data), and the time domain length of the second feedback channel resource is 1 symbol.

In a specific implementation manner, the sum of the time lengths of the second time interval and the first time interval is greater than or equal to the receiving processing time of the receiving end for the service data corresponding to the mth feedback channel resource; the second time interval is a time domain length occupied by the one or more data channel resources and a time domain length occupied by the first M-1 feedback channel resources. For example, assuming that the time domain length occupied by the first M-1 feedback channel resources is X symbols, the time domain length occupied by the one or more data channel resources is Z symbols, the time length of the first time interval is Y symbols, and the processing time of the receiving end for the traffic data corresponding to the mth feedback channel resource is defined as N1 symbols, X + Y + Z > N1, or T (X) + T (Y) + T (Z) > T (N1) is required. Wherein, X, Y, Z, N1 is non-negative decimal. T () represents a time transfer function.

In one example, it is assumed that each feedback channel resource combination includes 1 PUCCH resource, and one data channel resource (e.g., a Physical Uplink Shared Channel (PUSCH)), where the PUCCH resource adopts PUCCH format 0, and the content of the specific format is detailed in table 2 described above; the contents of the data channel resources may be as shown in table 13 below. For example, the contents of the defined feedback channel resource combination may be as shown in table 12 below:

table 12 defines the contents of the feedback channel resource combinations

Table 13 contents of data channel resources

The PUCCH format 0 occupies the same frequency domain resource as the data channel, so as to carry more bit information.

In the definition process, the PUCCH resource and PUSCH resource time domain positions are contiguous. Assume a starting symbol of 0 for data channel resource 1, which is 13 symbols in length. If the number of symbols of the 1 st PUCCH resource is 1, the time domain position of the PUSCH resource 1 is

symbol

0, 1, 2 … 12, and the time domain position of the PUCCH resource 1 is symbol 13, for example, a resource combination diagram including 1 data channel resource and 1 PUCCH resource is shown in fig. 8.

Assuming that the PDSCH reception processing time N1 is 10 symbols, the time domain length of the data channel resource is 13 symbols (e.g., the protocol is defined as 130S), so that the requirement that the last PDSCH end time to the start time of PUCCH1 is greater than N1 (130S > N1) can be satisfied. I.e. 13 symbols plus the first time interval is larger than N1, which is negligible here due to the smaller first time interval.

Assuming that the service data scheduled by the transmitting end is 4, that is, 4 data blocks are scheduled, and assuming that a feedback channel resource is nearly one in the feedback channel resource combination, it is default that HARQ-ACK information of all TBs (i.e., TB1, TB2, TB3, and TB4) is fed back to correspond to PUCCH resource 1.

In this example, a schematic process diagram of scheduling and feedback of 4 traffic data at the transmitting end and the receiving end may be as shown in fig. 9.

It should be noted that, the data sent from the receiving end to the sending end on the data channel resource may be service data, or may also be control information data, such as: channel state information, or channel sounding signals.

It should be noted that, in this embodiment, one data channel resource (PUSCH-resource ID) is defined, and therefore, for scheduling, scheduling information of a data channel needs to be defined, and there may be the following indication method:

method d1, schedule the data channel as one of the scheduled data blocks. E.g., when the scheduled data block is indicated as 4, the transmission is actually scheduled 3, and the last scheduled block (4 th) is the content indicating the data channel resources.

Method d2, individual signaling, i.e. individual indication of the relevant scheduling information of the defined data channel resources, comprising: modulation index, HARQ process ID, etc.

Method d3, default scheduling information, that is, when the indicated resource includes the defined data channel resource, the relevant modulation format adopts the default value, or the parameter configured by the higher layer.

Based on the above embodiments, in one embodiment, when multiple TBs are scheduled by multiple data scheduling information, wherein HARQ-ACK feedback of each TB indicates different feedback channel resources, as shown in fig. 10. For example, in fig. 10, a plurality of data scheduling information (i.e., a plurality of DCI) schedules a plurality of TBs, and a plurality of TNs respectively pass through corresponding PDSCH channel resources (e.g., PDSCH resource 1, PDSCH resource 2).

The data scheduling information 1(DCI-1) schedules 2 TBs, and the corresponding physical channel resources are PDSCH resource 1 and PDSCH resource 2, which may indicate that HARQ-ACK information corresponding to PDSCH resource 1 is fed back on PUCCH resource 0, and HARQ-ACK information corresponding to PDSCH resource 2 is fed back on PUCCH resource 1. Wherein, the feedback channel resource PUCCH resource 1 of HARQ-ACK corresponding to the PDSCH resource 2 may be explicit or implicit. For example:

explicit indication: in the data scheduling information, a 1bit indication field HARQ-Ack _ location is added; when the 1bit indication is 0, it indicates that HARQ-ACK (e.g. PUCCH resource 0) is fed back on the PUCCH indicated by the current data scheduling information (e.g. DCI-1). When the 1bit indication is 1, it indicates that HARQ-ACK (e.g., PUCCH resource 1) is fed back on the PUCCH resource indicated by the next data scheduling information (e.g., DCI-2).

Implicit indication: when the system defaults to multi-TB scheduling, the feedback of the last TB is fed back in the feedback channel resource indicated by the next data scheduling information, or semi-static configuration is carried out on high-level signaling.

Where, time domain length of TB 2: the time domain length d of the symbol 2 is equal to or more than the processing time N1 of TB1, or the time of d plus the transmission interval is equal to or more than the processing time N1 of TB 1.

Of course, it may also be defined that no HARQ-ACK information is fed back corresponding to the last TB.

By the embodiment, the receiving end can effectively feed back the HARQ-ACK information in time, so that the transmitting end can quickly retransmit data, and the data transmission efficiency can be improved.

In yet another embodiment, in one data scheduling message, data of a plurality of target receivers is scheduled, so that the receiver interval duration can meet the timing requirement of received data processing. For example, as shown in fig. 11, in one piece of data scheduling information, a plurality of TBs (e.g., 3) are scheduled, and the scheduling targets are a plurality of receiving ends (e.g., 3 UEs). Illustratively, a TB of PDSCH resource 1 is scheduled to receiving end 1, a TB of PDSCH resource 2 is scheduled to receiving end 2, a TB of PDSCH resource 2 is scheduled to PUCCH resource 2, a TB of PDSCH resource 3 is scheduled to receiving end 3, and a TB of PDSCH resource 1 is scheduled to PUCCH resource 3.

In this scheduling, the requirement of receiving processing timing is satisfied, that is, the interval between PDSCH resource 1 and PUCCH resource 1 of receiving end 1 satisfies the timing requirement of receiving TB corresponding to PDSCH resource 1, that is, the interval between PDSCH resource 2 and PUCCH resource 2 of receiving end 2 satisfies the timing requirement of receiving TB corresponding to PDSCH resource 2, that is, the interval between PDSCH resource 3 and PUCCH resource 3 of receiving end 3 satisfies the timing requirement of receiving TB corresponding to PDSCH resource 3. Therefore, the receiving end can effectively feed back the HARQ-ACK information in time, the transmitting end can quickly retransmit the data, and the data transmission efficiency can be improved.

Based on the above embodiments, the present application further provides a receiving end, which is applied to the communication system shown in fig. 1. The receiving end may be used to implement the functions of the receiving end in the communication method shown in fig. 2 or fig. 7. Referring to fig. 12, the receiving end may include a transceiving unit 1201 and a processing unit 1202.

In an embodiment, when the receiving end implements the function of the receiving end in the communication method shown in fig. 2, the receiving end may specifically be:

the transceiver 1201 is configured to acquire feedback channel configuration information, where the channel configuration information includes 1 or more feedback channel resource combinations, and each feedback channel resource combination includes at least two feedback channel resources in which time domains are continuous; receiving data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of the N service data; n is a positive integer;

the processing unit 1202 is configured to determine a first feedback channel resource combination from among 1 or more feedback channel resource combinations included in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 2, N is greater than or equal to M;

the transceiving unit 1201 is further configured to receive N pieces of service data scheduled and sent by the sending end, and send HARQ-ACK information to the sending end through a feedback channel resource in the first feedback channel resource combination corresponding to the nth service data.

In an optional implementation manner, the correspondence between the N service data and the M feedback channel resources may include:

when the M is equal to 2, the first N-1 service data correspond to the 1 st feedback channel resource, and the Nth service data correspond to the 2 nd feedback channel resource; or

When the M is equal to 2, the 1 st to Kth service data correspond to the 1 st feedback channel resource, and the K +1 th to Nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N; or

The lth group service data in the N service data corresponds to the lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken from 1 to M.

Specifically, when the channel configuration information includes a plurality of feedback channel resource combinations, the data scheduling information further includes an identifier of the first feedback channel resource combination.

Illustratively, a first time interval is smaller than a set time threshold, where the first time interval is a time interval between a time when the nth service data ends and a time when the receiving end sends first data or a signal to the sending end.

In one embodiment, the sum of the time domain length occupied by the first M-1 feedback channel resources and the time length of the first time interval is greater than or equal to the receiving processing time of the receiving end for the service data corresponding to the mth feedback channel resource.

In an optional implementation manner, when the time domain lengths occupied by the M feedback channel resources are not completely the same, the time domain length occupied by the mth feedback channel resource is smaller than the time domain length occupied by any one of the first M-1 feedback channel resources.

Specifically, the M feedback channel resources are PUCCH channel resources or PSFCH channel resources.

Illustratively, the frequency domain resources of the N service data are the same, and are continuous in the time domain, and the time domain lengths are the same.

In a possible implementation manner, the data scheduling information includes an identifier of a feedback channel resource corresponding to the first service data.

In another embodiment, when the receiving end implements the function of the receiving end in the communication method shown in fig. 7, the receiving end may specifically be:

the transceiving unit 1201 is configured to acquire feedback channel configuration information, where the channel configuration information includes 1 or more feedback channel resource combinations, and each feedback channel resource combination includes at least one feedback channel resource and one or more data channel resources; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain; receiving data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of the N service data; n is a positive integer;

the processing unit 1202 is configured to determine a first feedback channel resource combination from among 1 or more feedback channel resource combinations included in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 1, N is greater than or equal to M;

the transceiving unit 1201 is further configured to receive N pieces of service data scheduled and sent by the sending end, send one or more pieces of data to the sending end through one or more data channel resources in the first feedback channel resource combination, and send HARQ-ACK information to the sending end through a feedback channel resource in the first feedback channel resource combination corresponding to the nth piece of service data.

when M is equal to 1, the N service data correspond to the 1 feedback channel resource; or

In an exemplary embodiment, a sum of a second time interval and a time length of the first time interval is greater than or equal to a reception processing time of the receiving end for service data corresponding to an mth feedback channel resource; the second time interval is a time domain length occupied by the one or more data channel resources and a time domain length occupied by the first M-1 feedback channel resources.

Specifically, when the time domain lengths occupied by the M feedback channel resources are not completely the same, the time domain length occupied by the mth feedback channel resource is smaller than the time domain length occupied by any one of the first M-1 feedback channel resources.

Illustratively, the M feedback channel resources are PUCCH channel resources or PSFCH channel resources.

In a possible implementation manner, the frequency domain resources of the N service data are the same, and are continuous in the time domain, and the time domain lengths are the same.

In an optional implementation manner, the data scheduling information includes an identifier of a feedback channel resource corresponding to the first service data.

Based on the above embodiments, the present application further provides a sending end, where the sending end is applied to the communication system shown in fig. 1. The transmitting end may be configured to implement the functions of the transmitting end in the communication method shown in fig. 2 or fig. 7. Referring to fig. 13, the transmitting end may include a transceiving unit 1301 and a processing unit 1302.

In an embodiment, when the sending end implements the function of the sending end in the communication method shown in fig. 2, the sending end may specifically be:

the transceiving unit 1301 is configured to: sending data scheduling information to a receiving end, wherein the data scheduling information is used for indicating the sending information of the N service data; n is a positive integer, N is greater than or equal to M;

wherein, M is the number of feedback channel resources contained in the first feedback channel resource combination, and M is an integer greater than or equal to 2; the first feedback channel resource combination is one of one or more feedback channel resource combinations contained in feedback channel configuration information configured for the receiving end; the N service data and M feedback channel resources in the first feedback resource channel combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data;

scheduling and sending the N service data to the receiving end;

receiving HARQ-ACK information sent by the receiving end through feedback channel resources in the first feedback channel resource combination corresponding to the nth service data;

the processing unit 1302 is configured to control the transceiving unit 1301 to transceive data or information, that is, control the transceiving unit 1301 to perform the transceiving operation.

In a specific embodiment, the frequency domain resources of the N service data are the same, and are continuous in the time domain, and the time domain lengths are the same.

Illustratively, the data scheduling information includes an identifier of a feedback channel resource corresponding to the first service data.

In another embodiment, when the sending end implements the function of the sending end in the communication method shown in fig. 7, the sending end may specifically be:

the transceiving unit 1301 is configured to send data scheduling information to a receiving end, where the data scheduling information is used to indicate sending information of N service data; n is a positive integer, N is greater than or equal to M;

wherein, M is the number of feedback channel resources contained in the first feedback channel resource combination, and M is an integer greater than or equal to 1; the first feedback channel resource combination is one of one or more feedback channel resource combinations contained in feedback channel configuration information configured for the receiving end; the N service data and M feedback channel resources in the first feedback resource channel combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; each feedback channel resource combination comprises at least one feedback channel resource and one or more data channel resources; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data;

scheduling and sending the N service data to the receiving end;

receiving one or more data sent by the receiving end through one or more data channel resources in the first feedback channel resource combination and HARQ-ACK information sent through feedback channel resources in the first feedback channel resource combination corresponding to the nth service data;

Illustratively, a first time interval is smaller than a set time threshold, where the first time interval is a time interval between a time when the nth service data transmission ends and a time when the receiving end transmits first data to the transmitting end.

In an embodiment, the sum of the time lengths of the second time interval and the first time interval is greater than or equal to the receiving processing time of the receiving end for the service data corresponding to the mth feedback channel resource; the second time interval is a time domain length occupied by the one or more data channel resources and a time domain length occupied by the first M-1 feedback channel resources.

Illustratively, when the time domain lengths occupied by the M feedback channel resources are not completely the same, the time domain length occupied by the mth feedback channel resource is smaller than the time domain length occupied by any one of the first M-1 feedback channel resources.

In an optional implementation manner, the frequency domain resources of the N service data are the same, and are consecutive in the time domain, and the time domain lengths are the same.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. The functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Based on the above embodiments, the present application further provides a receiving end, where the receiving end is configured to implement the function of the receiving end in the communication method shown in fig. 2 or fig. 7. Referring to fig. 14, the receiving end includes: a transceiver 1401 and a processor 1402, wherein:

the processor 1402 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor 1402 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof. When the processor 1402 implements the above functions, it may be implemented by hardware, or may be implemented by hardware executing corresponding software.

The transceiver 1401 and the processor 1402 are connected to each other. Optionally, the transceiver 1401 and the processor 1402 are connected to each other by a bus 1404; the bus 1404 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 14, but this is not intended to represent only one bus or type of bus.

Optionally, the terminal device may further include a memory 1403, where the memory 1403 is used for storing a program and the like. In particular, the program may include program code comprising computer operating instructions. The memory 1403 may include RAM, and may also include non-volatile memory (e.g., at least one disk memory). The processor 1402 executes the application program stored in the memory 1403 to implement the above functions, thereby implementing the communication method shown in fig. 2 or fig. 7.

the transceiver 1401 is configured to acquire feedback channel configuration information, where the channel configuration information includes 1 or more feedback channel resource combinations, and each feedback channel resource combination includes at least two feedback channel resources with continuous time domains; receiving data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of the N service data; n is a positive integer;

the processor 1402 is configured to determine a first feedback channel resource combination from 1 or more feedback channel resource combinations included in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 2, N is greater than or equal to M;

the transceiver 1401 is further configured to receive N pieces of service data scheduled and sent by the sending end, and send HARQ-ACK information to the sending end through a feedback channel resource in the first feedback channel resource combination corresponding to the nth service data.

the transceiver 1401 is configured to acquire feedback channel configuration information, where the channel configuration information includes 1 or more feedback channel resource combinations, and each channel combination includes at least one feedback channel resource and one or more data channel resources; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain; receiving data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of the N service data; n is a positive integer;

the processor 1402 is configured to determine a first feedback channel resource combination from 1 or more feedback channel resource combinations included in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 1, N is greater than or equal to M;

the transceiver 1401 is further configured to receive N pieces of service data scheduled and sent by the sending end, send one or more pieces of data to the sending end through one or more data channel resources in the first feedback channel resource combination, and send HARQ-ACK information to the sending end through a feedback channel resource in the first feedback channel resource combination corresponding to the nth piece of service data.

Based on the above embodiments, an embodiment of the present application further provides a sending end, where the sending end is configured to implement a function of the sending end in the communication method shown in fig. 2 or fig. 7. Referring to fig. 15, the transmitting end includes: a transceiver 1501 and a processor 1502, wherein:

the processor 1502 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor 1502 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof. The processor 1502 may be implemented by hardware when implementing the above functions, or may be implemented by hardware executing corresponding software.

The transceiver 1501 and the processor 1502 are interconnected. Optionally, the transceiver 1501 and the processor 1502 are connected to each other by a bus 1504; the bus 1504 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 15, but this is not intended to represent only one bus or type of bus.

Optionally, the terminal device may further include a memory 1503, where the memory 1503 is used for storing programs and the like. In particular, the program may include program code comprising computer operating instructions. The memory 1503 may include a RAM and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 1502 executes the application program stored in the memory 1503 to implement the above functions, thereby implementing the communication method shown in fig. 2 or fig. 7.

the transceiver 1501 is configured to: sending data scheduling information to a receiving end, wherein the data scheduling information is used for indicating the sending information of the N service data; n is a positive integer, N is greater than or equal to M;

scheduling and sending the N service data to the receiving end;

the processor 1502 is configured to control the transceiver 1501 to transmit and receive data or information, that is, control the transceiver 1501 to perform the above-mentioned transmitting and receiving operations.

the transceiver 1501 is configured to send data scheduling information to a receiving end, where the data scheduling information is used to indicate sending information of N service data; n is a positive integer, N is greater than or equal to M;

wherein, M is the number of feedback channel resources contained in the first feedback channel resource combination, and M is an integer greater than or equal to 1; the first feedback channel resource combination is one of one or more feedback channel resource combinations contained in feedback channel configuration information configured for the receiving end; the N service data and M feedback channel resources in the first feedback resource channel combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; each feedback channel resource combination comprises at least one feedback channel resource and one or more data channel resources; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain;

scheduling and sending the N service data to the receiving end;

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the scope of the embodiments of the present application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

A method of communication, comprising:

a receiving end acquires feedback channel configuration information, wherein the channel configuration information comprises 1 or more feedback channel resource combinations, and each feedback channel resource combination comprises at least two continuous feedback channel resources in a time domain;

the receiving end receives data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of N service data; n is a positive integer;

the receiving end determines a first feedback channel resource combination in 1 or more feedback channel resource combinations contained in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 2, N is greater than or equal to M;

the receiving end receives the N service data scheduled and sent by the sending end;

and the receiving end sends HARQ-ACK information to the sending end through the feedback channel resource in the first feedback channel resource combination corresponding to the nth service data.
The method of claim 1, wherein the correspondence of the N traffic data to the M feedback channel resources comprises:

when the M is equal to 2, the first N-1 service data correspond to the 1 st feedback channel resource, and the Nth service data correspond to the 2 nd feedback channel resource; or

When the M is equal to 2, the 1 st to Kth service data correspond to the 1 st feedback channel resource, and the K +1 th to Nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N; or

The lth group service data in the N service data corresponds to the lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken from 1 to M.
The method of claim 1 or 2, wherein when the channel configuration information comprises a plurality of feedback channel resource combinations, the data scheduling information further comprises an identification of the first feedback channel resource combination.
The method as claimed in any one of claims 1 to 3, wherein a first time interval is smaller than a set time threshold, and the first time interval is a time interval between a time when the nth traffic data ends and a time when the receiving end transmits a first data or signal to the transmitting end.
The method of claim 4, wherein a sum of a time domain length occupied by the first M-1 feedback channel resources and a time length of the first time interval is greater than or equal to a reception processing time of the receiving end for the service data corresponding to the mth feedback channel resource.
The method according to any of claims 1-5, wherein when the time domain length occupied by the M feedback channel resources is not completely the same, the time domain length occupied by the Mth feedback channel resource is smaller than the time domain length occupied by any of the first M-1 feedback resources.
A method of communication, comprising:

a sending end sends data scheduling information to a receiving end, wherein the data scheduling information is used for indicating the sending information of N service data; n is a positive integer, N is greater than or equal to M;

wherein, M is the number of feedback channel resources contained in the first feedback channel resource combination, and M is an integer greater than or equal to 2; the first feedback channel resource combination is one of one or more feedback channel resource combinations contained in feedback channel configuration information configured for the receiving end; the N service data and M feedback channel resources in the first feedback resource channel combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data;

the sending end dispatches and sends the N service data to the receiving end;

and the sending end receives HARQ-ACK information sent by the receiving end through feedback channel resources in the first feedback channel resource combination corresponding to the nth service data.
The method of claim 7, wherein the correspondence of the N traffic data to the M feedback channel resources comprises:

when the M is equal to 2, the first N-1 service data correspond to the 1 st feedback channel resource, and the Nth service data correspond to the 2 nd feedback channel resource; or

When the M is equal to 2, the 1 st to Kth service data correspond to the 1 st feedback channel resource, and the K +1 th to Nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N; or

The lth group service data in the N service data corresponds to the lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken from 1 to M.
The method of claim 7 or 8, wherein when the channel configuration information comprises a plurality of feedback channel resource combinations, the data scheduling information further comprises an identification of the first feedback channel resource combination.
The method as claimed in any of claims 7-9, wherein a first time interval is smaller than a set time threshold, and the first time interval is a time interval between a time when the nth traffic data ends and a time when the receiving end transmits a first data or signal to the transmitting end.
The method of claim 10, wherein a sum of a time domain length occupied by the first M-1 feedback channel resources and a time length of the first time interval is greater than or equal to a reception processing time of the receiving end for the traffic data corresponding to the mth feedback channel resource.
The method according to any of claims 7-11, wherein when the time domain length occupied by the M feedback channel resources is not exactly the same, the time domain length occupied by the mth feedback channel resource is smaller than the time domain length occupied by any of the first M-1 feedback resources.
A method of communication, comprising:

a receiving end acquires feedback channel configuration information, wherein the channel configuration information comprises 1 or more feedback channel resource combinations, and each feedback channel resource combination comprises at least one feedback channel resource and one or more data channel resources; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain;

the receiving end receives data scheduling information sent by a sending end, wherein the data scheduling information is used for indicating the sending information of N service data; n is a positive integer;

the receiving end determines a first feedback channel resource combination in 1 or more feedback channel resource combinations contained in the feedback channel configuration information; wherein, the N service data and the M feedback channel resources in the first feedback channel resource combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data; m is an integer greater than or equal to 1, N is greater than or equal to M;

the receiving end receives the N service data scheduled and sent by the sending end;

the receiving end sends one or more data to the sending end through one or more data channel resources in the first feedback channel resource combination, and sends HARQ-ACK information to the sending end through the feedback channel resources in the first feedback channel resource combination corresponding to the nth service data.
The method of claim 13, wherein the correspondence of the N traffic data to the M feedback channel resources comprises:

when M is equal to 1, the N service data correspond to the 1 feedback channel resource; or

When the M is equal to 2, the first N-1 service data correspond to the 1 st feedback channel resource, and the Nth service data correspond to the 2 nd feedback channel resource; or

When the M is equal to 2, the 1 st to Kth service data correspond to the 1 st feedback channel resource, and the K +1 th to Nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N; or

The lth group service data in the N service data corresponds to the lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken from 1 to M.
The method of claim 13 or 14, wherein when the channel configuration information includes a plurality of feedback channel resource combinations, the data scheduling information further includes an identification of the first feedback channel resource combination.
The method as claimed in any of claims 13-15, wherein a first time interval is smaller than a set time threshold, and the first time interval is a time interval between a time when the nth traffic data ends and a time when the receiving end transmits a first data or signal to the transmitting end.
The method of claim 16, wherein a sum of a second time interval and a time length of the first time interval is greater than or equal to a receiving processing time of the receiving end for traffic data corresponding to an mth feedback channel resource; the second time interval is a time domain length occupied by the one or more data channel resources and a time domain length occupied by the first M-1 feedback channel resources.
The method according to any of claims 13-17, wherein when the time domain length occupied by the M feedback channel resources is not exactly the same, the time domain length occupied by the mth feedback channel resource is smaller than the time domain length occupied by any of the first M-1 feedback resources.
A method of communication, comprising:

a sending end sends data scheduling information to a receiving end, wherein the data scheduling information is used for indicating the sending information of N service data; n is a positive integer, N is greater than or equal to M;

wherein, M is the number of feedback channel resources contained in the first feedback channel resource combination, and M is an integer greater than or equal to 1; the first feedback channel resource combination is one of one or more feedback channel resource combinations contained in feedback channel configuration information configured for the receiving end; the N service data and M feedback channel resources in the first feedback resource channel combination have a corresponding relationship, and each service data in the N service data corresponds to one of the M feedback channel resources; each feedback channel resource combination comprises at least one feedback channel resource and one or more data channel resources; wherein a time domain location of the one or more data channel resources precedes a time domain location of the at least one feedback channel resource, the at least one feedback channel resource and the one or more data channel resources being contiguous in a time domain; the time interval between the end time of the nth service data transmission and the start time of the feedback channel resource corresponding to the nth service data in the time domain is greater than or equal to the receiving processing time of the nth service data by the receiving end; the nth service data is any one of the N service data;

the sending end dispatches and sends the N service data to the receiving end;

the sending end receives one or more data sent by the receiving end through one or more data channel resources in the first feedback channel resource combination and HARQ-ACK information sent through feedback channel resources in the first feedback channel resource combination corresponding to the nth service data.
The method of claim 19, wherein the correspondence of the N traffic data to the M feedback channel resources comprises:

when M is equal to 1, the N service data correspond to the 1 feedback channel resource; or

When the M is equal to 2, the first N-1 service data correspond to the 1 st feedback channel resource, and the Nth service data correspond to the 2 nd feedback channel resource; or

When the M is equal to 2, the 1 st to Kth service data correspond to the 1 st feedback channel resource, and the K +1 th to Nth service data correspond to the 2 nd feedback channel resource; k is an integer greater than 1 and less than N; or

The lth group service data in the N service data corresponds to the lth feedback channel resource, wherein the N service data are sequentially divided into M groups, and L is taken from 1 to M.
The method of claim 19 or 20, wherein when the channel configuration information comprises a plurality of feedback channel resource combinations, the data scheduling information further comprises an identification of the first feedback channel resource combination.
The method of any of claims 19 to 21, wherein a first time interval is smaller than a set time threshold, and the first time interval is a time interval between a time when the nth traffic data ends and a time when the receiving end transmits a first data or signal to the transmitting end.
The method of claim 22, wherein a sum of a second time interval and a time length of the first time interval is greater than or equal to a receiving processing time of the receiving end for traffic data corresponding to an mth feedback channel resource; the second time interval is a time domain length occupied by the one or more data channel resources and a time domain length occupied by the first M-1 feedback channel resources.
The method according to any of claims 19-23, wherein when the time domain length occupied by the M feedback channel resources is not exactly the same, the time domain length occupied by the mth feedback channel resource is smaller than the time domain length occupied by any of the first M-1 feedback resources.
A receiving end, comprising:

a transceiver for transceiving data;

processor for causing a receiving end to implement the method according to any of claims 1-6.
A transmitting end, comprising:

a transceiver for transceiving data;

a processor configured to cause a transmitting end to implement the method according to any one of claims 7 to 12.
A receiving end, comprising:

a transceiver for transceiving data;

a processor configured to enable a receiving end to implement the method according to any one of claims 13 to 18.
A transmitting end, comprising:

a transceiver for transceiving data;

a processor configured to cause a transmitting end to implement the method according to any one of claims 19 to 24.