WO2023010404A1 - Feedback method, terminal device, and network device - Google Patents

Abstract

Provided are a feedback method, a terminal device, and a network device. The feedback method comprises: a terminal device receiving first signaling, the first signaling being used for instructing the terminal device to feed back feedback information corresponding to a first group of HARQ processes; the terminal device receiving second signaling, the second signaling being used for instructing the terminal device to feed back feedback information corresponding to a second group of HARQ processes, and the HARQ processes comprised in the first group of HARQ processes being partially different or completely different from the HARQ processes comprised in the second group of HARQ processes; and the terminal device generating a feedback codebook, the feedback codebook comprising feedback information of a third group of HARQ processes, and the third group of HARQ processes comprising the first group of HARQ processes and the second group of HARQ processes. In embodiments of the present application, a plurality of signaling combinations are used to indicate which HARQ processes of the terminal device need to be fed back by the feedback codebook, such that a relatively flexible generation mode of the feedback codebook can be provided on the basis of reasonably controlling signaling overhead.

Description

Feedback method, terminal device and network device technical field

The present application relates to the field of communication technology, and more specifically, to a feedback method, terminal equipment and network equipment.

Background technique

In the communication field, in order to ensure the reliability and transmission efficiency of communication transmission, network devices can transmit data to terminal devices based on hybrid automatic repeat reQuest (HARQ). After receiving data corresponding to a certain HARQ process, the terminal device needs to send feedback information corresponding to the HARQ process to the network device, so that the network device determines whether to retransmit the data.

In related technologies, a terminal device may feed back a Type-3 HARQ-ACK codebook to a network device. When feeding back the Type-3 HARQ-ACK codebook, no matter how many data corresponding to the HARQ process actually received by the terminal device, it needs to feed back the feedback information corresponding to all the HARQ processes supported by the terminal device to the network device.

The new radio (new radio, NR) version 17 (release 17, Rel-17) supports the enhanced Type-3 HARQ-ACK codebook to compress the feedback overhead. When feeding back the Type-3 HARQ-ACK codebook, the terminal device can feed back the feedback information corresponding to part of the HARQ process, so that the generation method of the feedback codebook is more flexible. If it is desired to flexibly control the way of generating the feedback codebook, it is necessary to indicate which feedback information corresponds to which HARQ processes are fed back by the feedback codebook through signaling. Therefore, how to provide a more flexible feedback codebook generation method under the premise of reasonably controlling the signaling overhead is an urgent problem to be solved.

Contents of the invention

The present application provides a feedback method, a terminal device and a network device, which can provide a more flexible way of generating a feedback codebook under the premise of reasonably controlling signaling overhead.

In a first aspect, a feedback method is provided, including: a terminal device receives first signaling, and the first signaling is used to instruct the terminal device to feed back feedback information corresponding to a first group of HARQ processes; the terminal device receives the first signaling Two signaling, the second signaling is used to instruct the terminal equipment to feed back feedback information corresponding to the second group of HARQ processes, the HARQ processes included in the first group of HARQ processes are the same as those included in the second group of HARQ processes The HARQ processes are partially or completely different; the terminal device generates a feedback codebook, and the feedback codebook includes feedback information of a third group of HARQ processes, and the third group of HARQ processes includes the first group of HARQ processes and The second group of HARQ processes.

In a second aspect, a feedback method is provided, including: a network device sends a first signaling, and the first signaling is used to instruct a terminal device to feed back feedback information corresponding to a first group of hybrid automatic repeat request HARQ processes; the network The device sends second signaling, where the second signaling is used to instruct the terminal device to feed back feedback information corresponding to the second group of HARQ processes, where the HARQ processes included in the first group of HARQ processes are different from the second group of HARQ processes. The HARQ processes included in the process are partially or completely different; the network device receives a feedback codebook, and the feedback codebook includes feedback information of a third group of HARQ processes, and the third group of HARQ processes includes the first group of HARQ processes HARQ processes and the second group of HARQ processes.

In a third aspect, a terminal is provided, including: a first receiving module configured to receive a first signaling, and the first signaling is used to instruct the terminal device to feed back a first group of hybrid automatic repeat request HARQ process correspondence feedback information; the second receiving module is configured to receive second signaling, the second signaling is used to instruct the terminal device to feed back the feedback information corresponding to the second group of HARQ processes, in the first group of HARQ processes The included HARQ process is partly or completely different from the HARQ process included in the second group of HARQ processes; the generating module is configured to generate a feedback codebook, and the feedback codebook includes feedback information of a third group of HARQ processes, The third group of HARQ processes includes the first group of HARQ processes and the second group of HARQ processes.

In a fourth aspect, a network device is provided, including: a first sending module configured to send first signaling, where the first signaling is used to instruct the terminal device to feed back the first group of hybrid automatic repeat request HARQ process corresponding Feedback information; a second sending module configured to send second signaling, where the second signaling is used to instruct the terminal device to feed back feedback information corresponding to a second group of HARQ processes, the first group of HARQ processes includes The HARQ process is partly or completely different from the HARQ process included in the second group of HARQ processes; the first receiving module is configured to receive a feedback codebook, and the feedback codebook includes feedback information of a third group of HARQ processes , the third group of HARQ processes includes the first group of HARQ processes and the second group of HARQ processes.

According to a fifth aspect, a terminal device is provided, including a memory and a processor, the memory is used to store a program, and the processor is used to invoke the program in the memory to execute the method according to the first aspect.

In a sixth aspect, a network device is provided, including a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the method described in the second aspect.

In a seventh aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the first aspect.

In an eighth aspect, an apparatus is provided, including a processor, configured to call a program from a memory to execute the method described in the second aspect.

A ninth aspect provides a chip, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the first aspect.

In a tenth aspect, a chip is provided, including a processor, configured to call a program from a memory, so that a device installed with the chip executes the method described in the second aspect.

In an eleventh aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the first aspect.

In a twelfth aspect, a computer-readable storage medium is provided, on which a program is stored, and the program causes a computer to execute the method described in the second aspect.

A thirteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the first aspect.

A fourteenth aspect provides a computer program product, including a program, the program causes a computer to execute the method described in the second aspect.

A fifteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the first aspect.

A sixteenth aspect provides a computer program, the computer program causes a computer to execute the method described in the second aspect.

In this embodiment of the present application, multiple signaling combinations are used to indicate which HARQ processes of the terminal device need to be fed back by the feedback codebook. Compared with the indication manner of a single signaling, the indication manner of a combination of multiple signalings can provide a more flexible manner of generating a feedback codebook on the premise of reasonably controlling signaling overhead.

Description of drawings

Fig. 1 is an example diagram of a system architecture of a communication system applicable to an embodiment of the present application.

FIG. 2 is an example diagram of a codebook structure of a Type-3 HARQ-ACK codebook.

FIG. 3 is a schematic diagram of a feedback method based on a Type-3 HARQ-ACK codebook.

Fig. 4 is a schematic diagram of another feedback method based on the Type-3 HARQ-ACK codebook.

FIG. 5 is a schematic flowchart of a feedback method provided by an embodiment of the present application.

FIG. 6 is an example diagram of a possible implementation manner of the method in FIG. 5 .

FIG. 7 is an example diagram of another possible implementation manner of the method in FIG. 5 .

FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a feedback device provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120 . The network device 110 may be a device that communicates with the terminal device 120 . The network device 110 can provide communication coverage for a specific geographical area, and can communicate with the terminal device 120 located in the coverage area.

FIG. 1 exemplarily shows one network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system , LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, and satellite communication systems, and so on.

The terminal equipment in the embodiment of the present application may also be referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile Terminal, MT) ), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and can be used to connect people, objects and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like. The terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. Optionally, UE can be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cell phone and an automobile communicate with each other using sidelink signals. Communication between cellular phones and smart home devices without relaying communication signals through base stations.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be called an access network device or a wireless access network device, for example, the network device may be a base station. The network device in this embodiment of the present application may refer to a radio access network (radio access network, RAN) node (or device) that connects a terminal device to a wireless network. The base station can broadly cover various names in the following, or replace with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), primary station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (access point, AP), transmission node, transceiver node, base band unit (base band unit, BBU), remote radio unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning nodes, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, a modem or a chip configured in the aforementioned equipment or device. The base station can also be a mobile switching center, a device that undertakes the function of a base station in D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication, and a device in a 6G network. Network-side equipment, equipment that assumes base station functions in future communication systems, etc. Base stations can support networks of the same or different access technologies. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.

Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to serve as a device in communication with another base station.

In some deployments, the network device in this embodiment of the present application may refer to a CU or a DU, or, the network device includes a CU and a DU. A gNB may also include an AAU.

Network equipment and terminal equipment can be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the air. In the embodiment of the present application, the scenarios where the network device and the terminal device are located are not limited.

It should be understood that all or part of the functions of the communication device in this application may also be realized by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform).

In the field of communication, error control technology can be introduced during data transmission to ensure the reliability and efficiency of communication transmission. There are many error control technologies that can be used at present, for example, automatic repeat request (automatic repeat request, ARQ), forward error correction coding (forward error correction, FEC), hybrid automatic repeat request (hybrid automatic repeat request, HARQ) )wait.

HARQ is a technology formed by combining ARQ and FEC. HARQ can use FEC technology at the receiving end to correct the correctable part of all errors, thereby reducing the number of retransmissions.

For errors that cannot be corrected by FEC, HARQ can request the sending end to resend data through the ARQ mechanism at the receiving end. Specifically, the receiving end can use an error detection code (for example, a cyclic redundancy check (cyclic redundancy check, CRC) check) to detect whether the received data has an error. If there is no error, the receiving end can send a positive acknowledgment (acknowledgment, ACK) to the sending end, and after receiving the ACK, the sending end can then send the next new data. If an error occurs, the receiver can discard the uncorrectable error packet and send a negative acknowledgment (NACK) to the sender. After receiving NACK, the sender will resend the same data to the receiver.

Taking the communication system shown in FIG. 1 as an example, the terminal device 120 may receive data corresponding to a certain HARQ process sent by the network device 110 . If the terminal device 120 receives the data correctly, it can send the feedback information corresponding to the HARQ process to the network device 110, that is, ACK; if the terminal device 120 does not receive the data correctly, it can send the HARQ process corresponding to the network device 110 Feedback information, that is, NACK, so that the network device 110 can retransmit the data.

The feedback information corresponding to the HARQ process can be carried by a physical channel, for example, it can be carried by a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH).

The related technology introduces a Type-3 HARQ-ACK codebook, so that the terminal device 120 can feed back the feedback information corresponding to all HARQ processes to the network device 110 at one time. For example, assuming that the terminal device 120 supports a maximum of N HARQ processes, in the feedback method based on the Type-3 HARQ-ACK codebook, no matter how many HARQ processes the terminal device 120 actually receives, it always passes the Type-3 HARQ-ACK The codebook feeds back feedback information corresponding to all N HARQ processes to the network device 110 .

Figure 2 shows an example of the Type-3 HARQ-ACK codebook. In the example shown in FIG. 2 , the terminal device 120 configures three carriers (in some embodiments, the carriers may also be referred to as serving cells) for data transmission, that is, carriers 1-3 in FIG. 2 . Carrier 1 supports a maximum of 8 HARQ processes, carrier 2 supports a maximum of 4 HARQ processes, and carrier 3 supports a maximum of 16 HARQ processes. Therefore, in the example of FIG. 2 , the terminal device 120 supports a maximum of 28 (8+4+16) HARQ processes. When the network device 110 sends downlink control information (downlink control information, DCI) to trigger the terminal device 120 to use the Type-3 HARQ-ACK codebook for feedback, no matter how many data corresponding to the HARQ processes the terminal device 120 actually receives, the terminal device 120 always The feedback information corresponding to all 28 HARQ processes will be fed back to the network device 110 . For example, assuming that terminal device 120 only receives data corresponding to 8 HARQ processes on carrier 1, terminal device 120 will still feed back carrier 2 to network device 110 in addition to feedback information corresponding to 8 HARQ processes on carrier 1. Feedback information corresponding to 20 HARQ processes on carrier 3.

In some embodiments, if the terminal device 120 does not receive the data corresponding to a certain HARQ process, it can set the feedback information corresponding to the HARQ process in the Type-3 HARQ-ACK codebook as occupancy information (such as NACK) . For example, if the HARQ processes on carrier 2 and carrier 3 have not received the data transmitted by the network device 110, their corresponding feedback information may be set to NACK.

There are many ways to generate the Type-3 HARQ-ACK codebook. In some embodiments, the Type-3 HARQ-ACK codebook may be generated in the following manner: for each HARQ process, the terminal device 120 may only feed back the ACK or NACK corresponding to the HARQ process. The feedback codebook generated in this manner may easily cause ambiguity in understanding the feedback information between the terminal device 120 and the network device 110 .

Taking FIG. 3 as an example, the network device 110 sends a physical downlink shared channel (physical downlink shared channel, PDSCH) 1 to the terminal device 120. PDSCH 1 is used to carry data corresponding to HARQ process X. After the terminal device 120 correctly receives the PDSCH 1, it can send an ACK to the network device 110. After sending PDSCH 1, network device 110 then sends PDSCH 2. The PDSCH 2 carries new data corresponding to the HARQ process X. Assuming that terminal device 120 has not received PDSCH 2, in this case, terminal device 120 will map the ACK corresponding to PDSCH 1 to the bit position corresponding to PDSCH 2, and PDSCH 2 itself should correspond to NACK, which will cause terminal device 120 and the network device 110 have ambiguous understandings of the feedback information.

In order to avoid ambiguity between the terminal device 120 and the network device 110 in understanding the feedback information, in some embodiments, another generation method of the Type-3 HARQ-ACK codebook can be adopted, that is, for each HARQ process, the terminal device 120 simultaneously feeds back the ACK/NACK and new data indicator (NDI) information of the process.

NDI can use 1 bit to indicate whether the scheduled data is newly transmitted or retransmitted. If the NDI value of the same HARQ process is flipped compared to before (for example, NDI=1 before flipping, NDI=0 after flipping; or NDI=0 before flipping, NDI=1 after flipping), it means that the currently transmitted data is new data. Otherwise, it means that the currently transmitted data is retransmitted data.

Taking FIG. 4 as an example, the network device 110 sends PDSCH 1 to the terminal device 120. The PDSCH 1 is used to bear the data corresponding to the HARQ process X. At this time, the NDI corresponding to the HARQ process X is 0. The terminal device 120 correctly receives the data. After sending PDSCH 1, network device 110 then sends PDSCH 2. The PDSCH 2 still bears the data corresponding to the HARQ process X, but the data is new data. In this case, NDI can be flipped, that is, the value of NDI changes from 0 to 1. Assuming that the terminal device 120 has not received PDSCH 2, the terminal device 120 can feed back feedback information in the following form to the network device 110 through the Type-3 HARQ-ACK codebook: {ACK, NDI=0}. After the network device 110 receives the feedback information, it finds that the NDI in the feedback information is different from the NDI corresponding to the HARQ process X sent last time by itself, and can know that the terminal device 120 has not received the last transmission of the HARQ process X, Therefore, the meaning of the feedback information can be correctly understood. However, compared with the way that the terminal equipment only feeds back the ACK/NACK of the HARQ process, this feedback way will also increase the feedback overhead.

When the terminal device 120 uses the Type-3 HARQ-ACK codebook to transmit the feedback information, the feedback information can be mapped into the feedback codebook according to the order of the HARQ process number first and then the carrier number order.

It should be noted that, the embodiment of the present application does not limit the counting manner of the HARQ process and/or the carrier (or called the initial number of the HARQ process and/or the carrier). For example, the HARQ process and/or carrier may start counting from 0 or 1. In the following examples introducing the present application, both the HARQ process and the carrier are counted from 1 as an example for illustration.

Continue to take FIG. 2 as an example to illustrate the structure of the Type-3 HARQ-ACK codebook. Assume that the maximum number of codewords supported by the three carriers configured by the terminal device 120 is 1, that is, only one transmit block (transmit block, TB) is carried in one PDSCH, corresponding to 1-bit feedback information. If the Type-3 HARQ-ACK codebook only feeds back the ACK/NACK corresponding to the HARQ process, the feedback codebook generated by the terminal device 120 can be {b _1,1 ,...,b _1,8 ,b _2,1 ,... ,b _2,4 ,b _3,1 ,...,b _3,16 }, where b _i,j is the ACK/NACK corresponding to HARQ process j on carrier i. If the Type-3 HARQ-ACK codebook feeds back the ACK/NACK and NDI corresponding to the HARQ process at the same time, the feedback codebook generated by the terminal device 120 can be {b _1,1 ,NDI _1,1 ,...,b _1,8 , NDI _1,8 ,b _2,1 ,NDI _2,1 ,...,b _2,4 ,NDI _2,4 ,b _3,1 ,NDI _3,1 ,...,b _3,16 ,NDI _3,16 }, where b _{i, j} is the ACK/NACK corresponding to HARQ process j on carrier i, and NDI _{i, j} is the NDI corresponding to HARQ process j last received by the terminal device on carrier i.

The Type-3 HARQ-ACK feedback codebook performs ACK/NACK feedback based on all HARQ processes, so even if the terminal device actually receives data corresponding to a small number of HARQ processes, it still needs to feed back to the network device the feedback corresponding to all the HARQ processes it supports information. It can be seen that the feedback overhead of this feedback codebook is relatively large.

Therefore, some versions of the communication system (such as NR Rel-17) are determined to support the enhanced Type-3 HARQ-ACK feedback codebook in order to compress the feedback overhead. Among them, in the feedback mode based on the enhanced Type-3 HARQ-ACK feedback codebook, the terminal device can feed back the feedback information corresponding to part of the HARQ process, thereby providing a more flexible way of generating the feedback codebook.

However, on the premise of providing a more flexible way of generating the feedback codebook, the network device needs to introduce additional signaling overhead to instruct the terminal device to feed back feedback information corresponding to which HARQ processes this time.

Therefore, how to provide a more flexible feedback codebook generation method under the premise of reasonably controlling the signaling overhead is an urgent problem to be solved.

In order to solve the above problems, the present application provides a feedback method. In this method, multiple signaling combinations are used to indicate which HARQ processes of the terminal equipment need to be fed back by the feedback codebook. Compared with the indication manner of a single signaling, the indication manner of a combination of multiple signalings can provide a more flexible manner of generating a feedback codebook on the premise of reasonably controlling signaling overhead.

The feedback method provided by the embodiment of the present application will be described in detail below with reference to FIG. 5 to FIG. 7 .

Fig. 5 shows a feedback method provided by an embodiment of the present application. The method in FIG. 5 is described from the perspective of interaction between a network device and a terminal device. The method can be applied to the communication system shown in FIG. 1 .

Referring to FIG. 5, at S510, the network device sends first signaling to the terminal device. The first signaling may be used to instruct the terminal device to feed back the feedback information corresponding to the first group of HARQ processes.

At S520, the network device sends second signaling to the terminal device. The second signaling may be used to instruct the terminal device to feed back the feedback information corresponding to the second group of HARQ processes.

In some embodiments, the HARQ processes included in the first group of HARQ processes may be completely different from the HARQ processes included in the second group of HARQ processes. For example, the first group of HARQ processes may refer to all HARQ processes on carrier 1, and the second group of HARQ processes may refer to all HARQ processes on carrier 2. In some other embodiments, the HARQ processes included in the first group of HARQ processes may be partially different from the HARQ processes included in the second group of HARQ processes. For example, the first group of HARQ processes may refer to HARQ processes 1-6 on carrier 1, and the second group of HARQ processes may refer to HARQ processes 5-8 on carrier 1. For another example, the first group of HARQ processes may be all HARQ processes corresponding to carrier 1 and carrier 2, and the second group of HARQ processes may be all HARQ processes corresponding to carrier 2 and carrier 3.

The present application does not specifically limit the number of HARQ processes included in the first group of HARQ processes and the second group of HARQ processes. For example, a group of HARQ processes may include one HARQ process, or at least two HARQ processes.

In some embodiments, the first signaling and/or the second signaling may be DCI. In this embodiment, the present application does not specifically limit the format of the DCI, for example, the DCI may be DCI format 1_1, DCI format 1_2, etc. Taking DCI as an example for both the first signaling and the second signaling, the first signaling and the second signaling may use the same DCI format, or may use different DCI formats. For example, both the first signaling and the second signaling can adopt DCI format 1_1; or, the first signaling can adopt DCI format 1_1, and the second signaling can adopt DCI format 1_2.

In some other embodiments, the first signaling and/or the second signaling may be high-layer signaling. For example, the first signaling and the second signaling may be radio resource control (radio resource control, RRC) signaling.

In this application, "first" and "second" in the first signaling and the second signaling do not mean the order of execution. For example, the terminal device may receive the first signaling and the second signaling at the same time. Alternatively, the terminal device may receive the first signaling first, and then receive the second signaling; of course, the terminal device may also receive the second signaling first, and then receive the first signaling.

The feedback time of the feedback information corresponding to the first group of HARQ processes and the feedback time of the feedback information corresponding to the second group of HARQ processes may belong to the same time unit, or may belong to different time units. In other words, the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes may be transmitted in the same time unit, or may be transmitted in different time units. For example, the feedback time of the feedback information corresponding to the first group of HARQ processes may be a first time unit; the feedback time of the feedback information corresponding to the second group of HARQ processes may be a second time unit. For another example, the feedback time of the feedback information corresponding to the first group of HARQ processes is the first time unit; the feedback time of the feedback information corresponding to the second group of HARQ processes is also the first time unit.

The present application does not specifically limit the length of a time unit. The time unit may be, for example, at least one time slot, at least one sub-slot, or at least one symbol. For example, the time unit is a time slot, or a sub-slot.

The feedback time of the feedback information corresponding to the first group of HARQ processes may be indicated through the first signaling. The feedback time of the feedback information corresponding to the second group of HARQ processes may be indicated through the second signaling.

Continue referring to FIG. 5 , from S530 to S540 , the terminal device generates a feedback codebook; further, in some embodiments, the terminal device may send the feedback codebook to the network device. In some embodiments, the feedback codebook may be called an enhanced Type-3 HARQ-ACK codebook.

The feedback codebook may include feedback information corresponding to the third group of HARQ processes. The third group of HARQ processes may include the first group of HARQ processes and the second group of HARQ processes.

In some embodiments, the third set of HARQ processes may be a union of the first set of HARQ processes and the second set of HARQ processes. In this embodiment of the present application, the union may mean that the third group of HARQ processes includes all HARQ processes in the first group of HARQ processes and the second group of HARQ processes, but does not include other HARQ processes. For example, the first group of HARQ processes includes all HARQ processes on carrier 1 and carrier 2, and the second group of HARQ processes includes all HARQ processes on carrier 2 and carrier 3. In this case, the fact that the third group of HARQ processes is the union of the first group of HARQ processes and the second group of HARQ processes may mean that the third group of HARQ processes includes all HARQ processes on carrier 1, carrier 2 and carrier 3.

In some other embodiments, the third group of HARQ processes may be an effective HARQ process in the union of the first group of HARQ processes and the second group of HARQ processes. In this embodiment of the present application, the effective HARQ process may refer to the existence of the HARQ process in the terminal device. For example, assume that the first group of HARQ processes includes HARQ processes 4-10 on carrier 1, and the second group of HARQ processes includes HARQ processes 4-10 on carrier 3, but carrier 1 actually has only 8 HARQ processes, and there is no HARQ process. Process 9-10. In this case, the third group of HARQ processes is an effective HARQ process in the union of the first group of HARQ processes and the second group of HARQ processes. It may mean that the third group of HARQ processes are HARQ processes 4-8 on carrier 1 and HARQ processes 4-10 on 3. This is not the same as the third group of HARQ processes being the union of the first group of HARQ processes and the second group of HARQ processes. The third group of HARQ processes is the union of the first group of HARQ processes and the second group of HARQ processes. The three groups of HARQ processes are HARQ processes 4-10 on carrier 1 and HARQ processes 4-10 on carrier 3 .

It can be seen that some HARQ processes in the first group of HARQ processes are invalid or do not exist. The third group of HARQ processes may include all HARQ processes in the first group of HARQ processes, or may only include valid HARQ processes in the first group of HARQ processes.

The first physical channel is configured to carry feedback information corresponding to the first group of HARQ processes. The first physical channel may be determined based on first signaling. The second physical channel is configured to carry feedback information corresponding to the second group of HARQ processes. The second physical channel may be determined based on second signaling. The first physical channel and the second physical channel may be channels that overlap each other (for example, overlap in time domain). Alternatively, the first physical channel and the second physical channel may be two channels in the same time unit. For the definition of the time unit, please refer to the previous section.

It should be noted that the first physical channel and the second physical channel mentioned here refer to channels originally intended to carry feedback information corresponding to the first group of HARQ processes and feedback information corresponding to the second group of HARQ processes. After adopting the embodiment of the present application, the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes may be included in the same feedback codebook and transmitted through the third physical channel. The third physical channel may be the first physical channel or the second physical channel. Alternatively, the third physical channel may also be different from the first physical channel and the second physical channel.

The third physical channel may be determined based on the first signaling, or may be determined based on the second signaling. As an example, the third physical channel is determined based on the second signaling. Further, in some embodiments, the second signaling used to determine the third physical channel may meet at least one of the following conditions: the time domain position of the second signaling is after the time domain position of the first signaling ; and/or, the number of the carrier transmitting the second signaling is greater than or smaller than the number of the carrier transmitting the first signaling.

Both the first group of HARQ processes and the second group of HARQ processes may belong to a group of HARQ processes in the preset group. The preset group will be described in detail below in combination with specific examples.

The "preset" in the preset group mentioned in the embodiment of the present application may refer to preconfiguration or presetting. Pre-configuration may be, for example, network device configuration. For example, the network device may configure a preset group for the terminal device through high-layer signaling. The high layer signaling may be, for example, RRC signaling. Presetting may refer to agreement in advance. For example, once the terminal device starts or uses the enhanced Type-3 HARQ-ACK codebook-based feedback scheme, the preset group can be obtained in a manner predefined by the protocol.

The "group" mentioned in the embodiment of the present application may sometimes be replaced with "set". For example, the first set of HARQ processes may be replaced by a first set of HARQ processes. As another example, the preset group may be replaced with a preset HARQ process set.

In some embodiments, the first group of HARQ processes and the second group of HARQ processes may belong to the same preset group. For example, both the first group of HARQ processes and the second group of HARQ processes belong to the first preset group. In this case, the first preset group may include at least two groups of HARQ processes.

In some other embodiments, the first group of HARQ processes and the second group of HARQ processes may belong to different preset groups. For example, the first group of HARQ processes belongs to the first preset group, that is, the first group of HARQ processes is a group of HARQ processes in the first preset group; the second group of HARQ processes belongs to the second preset group, that is, the second group of HARQ processes A process is a set of HARQ processes in the second preset group. The first preset group and the second preset group may be different preset groups. In this case, the first preset group may include at least one group of HARQ processes. The second preset group may also include at least one group of HARQ processes. In this embodiment, further, the network device may send configuration signaling to the terminal device. The configuration signaling may be used to indicate the first preset group or the second preset group.

A preset group (which may be the aforementioned first preset group and/or second preset group) may include at least one group of HARQ processes. The embodiment of the present application does not specifically limit the preset manner of a group of HARQ processes in the preset group. For example, a set of HARQ processes in the preset group may include: all HARQ processes on one carrier, where the one carrier may be scheduled by signaling (which may be the aforementioned first signaling and/or second signaling) The carrier indicated in the signaling or the carrier that transmits the signaling; all HARQ processes on at least one carrier; n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or, at least There are m HARQ processes on one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.

In some embodiments, the maximum number of HARQ processes may refer to the maximum number of HARQ processes supported by the terminal device. When the maximum number of HARQ processes refers to the maximum number of HARQ processes supported by the terminal device, the maximum number of HARQ processes supported by the terminal device may be set for one carrier, that is, the maximum number of HARQ processes in a single carrier. For example, a terminal device supports single carrier (for example, carrier 1) transmission, and the maximum number of HARQ processes supported by carrier 1 is 8, then the maximum number of HARQ processes supported by the terminal device is 8.

In some other embodiments, the maximum number of HARQ processes may refer to the maximum number of HARQ processes configured for the terminal device (for example, the maximum number of HARQ processes configured for the terminal device by the network device). For example, when the terminal device is configured for carrier aggregation transmission, the maximum number of HARQ processes may refer to the one with the largest value among the maximum number of HARQ processes configured for each carrier in carrier aggregation; it may also refer to one of the maximum number of HARQ processes in carrier aggregation The maximum number of HARQ processes corresponding to the carrier.

For example, when the terminal device is configured for 3-carrier aggregation, the maximum number of HARQ processes configured for carrier 1, carrier 2, and carrier 3 are 8, 4, and 16 respectively, and the maximum number of HARQ processes can refer to carrier 1, carrier 2, and carrier 3 The maximum value of the maximum number of HARQ processes configured respectively, that is, the maximum number of HARQ processes may refer to the number of HARQ processes 16 configured on the carrier 3 . Alternatively, the maximum number of HARQ processes may also be the maximum number of HARQ processes corresponding to one of carrier 1, carrier 2, and carrier 3, for example, it may refer to the maximum number of HARQ processes 8 corresponding to carrier 1, or the maximum number of HARQ processes corresponding to carrier 2 The number is 4, or the maximum number of HARQ processes corresponding to carrier 3 is 16.

If a preset group includes multiple groups of HARQ processes, the multiple groups of HARQ processes may adopt the same HARQ process preset manner, or may adopt different HARQ process preset manners. For example, a preset group may include two groups of HARQ processes. One set of HARQ processes in the two sets of HARQ processes includes all HARQ processes on at least one carrier; the other set of HARQ processes in the two sets of HARQ processes includes part of the HARQ processes on a carrier, that is, multiple sets of HARQ processes in the preset group Different HARQ process preset modes are adopted among the processes.

The preset manner of a preset group and a group of HARQ processes in the preset group will be described in detail below with reference to several examples. It should be understood that the preset group shown in the following example may be the first preset group mentioned above, or the second preset group mentioned above. In addition, preset manners of a group of HARQ processes in different examples may be combined with each other.

Example one:

A preset group may include at least one group of HARQ processes. A set of HARQ processes in the preset group (or, the at least one set of HARQ processes) may include all HARQ processes on at least one carrier. The at least one carrier may be determined in a preconfigured or preconfigured manner, and the meanings of preconfigured and preconfigured may be referred to above. The scenario shown in FIG. 2 is taken as an example for description. In the example in FIG. 2 , the terminal device is configured with three carriers for data transmission, that is, carriers 1-3. The maximum number of HARQ processes supported by the carriers 1-3 are 8, 4 and 16 respectively. In this example, a preset group can take the preset form shown in Table 1 below.

In Table 1, the preset group includes three groups of HARQ processes, the first group of HARQ processes includes all HARQ processes corresponding to carrier 1, the second group of HARQ processes includes all HARQ processes corresponding to carriers 1 and 2, and the third group of HARQ processes All HARQ processes corresponding to carriers 2 and 3 are included.

Table 1

signaling	Carrier
00	null
01	Carrier 1
10	Carrier 1, 2
11	Carrier 2, 3

In the example of Table 1, if the indication of the signaling (which may be the aforementioned first signaling and/or the second signaling) is 00, it may indicate that the enhanced Type-3 HARQ-ACK codebook is not triggered. If the signaling indication is 01, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to 8 HARQ processes in carrier 1. If the signaling indication is 10, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to 8 HARQ processes in carrier 1 and feedback information corresponding to 4 HARQ processes in carrier 2. That is, the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to 12 HARQ processes. If the signaling indication is 11, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to 4 HARQ processes in carrier 2 and feedback information corresponding to 16 HARQ processes in carrier 3 . That is, the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to 20 HARQ processes.

Example two:

A preset group may include at least one group of HARQ processes. A group of HARQ processes in the preset group (or, at least a group of HARQ processes) may include n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer. The n HARQ processes may be part of HARQ processes in one carrier, or part of HARQ processes in multiple carriers, or part of all HARQ processes supported by the terminal device. The n HARQ processes may be determined in a preconfigured or preconfigured manner, and the meanings of the preconfigured and preconfigured may be referred to above.

Table 2 provides a specific example of the preset group in Example 2. It can be seen from Table 2 that the preset group includes three groups of HARQ processes. The first group of HARQ processes includes HARQ processes 1-3, the second group of HARQ processes includes HARQ processes 4-6, and the third group of HARQ processes includes HARQ processes 7-6. 8.

Table 2

signaling

HARQ process

00	null
01	HARQ process 1~3
10	HARQ process 4~6
11	HARQ process 7~8

Taking the terminal device configured for single-carrier transmission as an example, if the signaling (which can be the first signaling and/or the second signaling mentioned above) indicates 00, it can indicate that the enhanced Type-3 HARQ-ACK code is not triggered Book. If the signaling indication is 01, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 1-3 in the single carrier. If the signaling indication is 10, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 4-6 in the single carrier. If the signaling indication is 11, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 7-8 in the single carrier.

Taking the terminal device configured with carrier aggregation transmission based on N carriers as an example, if the signaling (which may be the first signaling and/or the second signaling mentioned above) indicates 00, it may indicate that the enhanced Type -3 HARQ-ACK codebook. If the signaling indication is 01, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 1 to 3 in the N carriers. If the signaling indication is 10, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 4 to 6 in the N carriers. If the signaling indication is 11, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 7-8 in the N carriers.

Table 3 provides another specific example under Example 2. It can be seen from Table 3 that the preset group includes three groups of HARQ processes, the first group of HARQ processes includes HARQ processes 1 to 5, the second group of HARQ processes includes HARQ processes 6 to 10, and the third group of HARQ processes includes HARQ processes 11 to 10. 16.

table 3

signaling	HARQ process
00	null
01	HARQ process 1~5
10	HARQ process 6~10
11	HARQ process 11~16

Take the terminal equipment using two carriers (carrier 1 and carrier 3 shown in Figure 2 as an example) for carrier aggregation transmission, and carrier 1 supports a maximum of 8 HARQ processes, and carrier 3 supports a maximum of 16 HARQ processes as an example , if the signaling (which may be the aforementioned first signaling and/or the second signaling) indicates 10, the terminal device may generate a corresponding feedback codebook in one of the following two ways.

Method 1: The feedback codebook generated by the terminal device is {b _1,6 ,b _1,7 ,b _1,8 ,NACK,NACK,b _3,6 ,b _3,7 ,b _3,8 ,b _3,9 ,b _3,10 }, where b _i,j is the ACK/NACK corresponding to HARQ process j on carrier i. For carrier 1, since a maximum of 8 HARQ processes are supported, there is no HARQ process 9 and HARQ process 10, and the corresponding bits in the feedback codebook are set as occupancy information, such as NACK.

Method 2: The feedback codebook generated by the terminal device is {b _1,6 ,b _1,7 ,b _1,8 ,b _3,6 ,b _3,7 ,b _3,8 ,b _3,9 ,b _{3, 10} }, where b _i,j is the ACK/NACK corresponding to HARQ process j on carrier i. For carrier 1, since a maximum of 8 HARQ processes are supported, there is no HARQ process 9 and HARQ process 10, and corresponding bits are not set in the feedback codebook. In other words, the feedback codebook includes feedback information corresponding to an effective HARQ process.

Example three:

A preset group may include at least one group of HARQ processes. A group of HARQ processes in the preset group (or at least a group of HARQ processes) may include m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer. This example can be regarded as a combination of Example 1 and Example 2 above.

Table 4 gives a specific example under Example 3. It can be seen from Table 4 that the preset group includes three groups of HARQ processes. The first group of HARQ processes includes HARQ processes 1 to 4 in carrier 1, the second group of HARQ processes includes HARQ processes 5 to 7 in carrier 1, and the third group of HARQ processes includes HARQ processes in carrier 1. A group of HARQ processes includes all HARQ processes corresponding to carriers 1 and 2.

Table 4

signaling	gather
00	null
01	HARQ processes 1-4 in carrier 1
10	HARQ processes 5-7 in carrier 1
11	Carrier 1 and Carrier 2

In the example in Table 4, if the indication of the signaling (which may be the aforementioned first signaling and/or the second signaling) is 00, it may indicate that the enhanced Type-3 HARQ-ACK codebook is not triggered. If the signaling indication is 01, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 1-4 in carrier 1. If the signaling indication is 10, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to HARQ processes 5-7 in carrier 1. If the signaling indication is 11, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to all HARQ processes in carrier 1 and carrier 2 .

Example four:

A preset group may include at least one group of HARQ processes. A group of HARQ processes in the preset group (or, at least a group of HARQ processes) may include all HARQ processes on a carrier. For example, a group of HARQ processes in the first preset group is all HARQ processes on the first carrier. The first carrier may be a carrier scheduled by the first signaling or a carrier indicated in the first signaling or a carrier transmitting the first signaling. As another example, a group of HARQ processes in the second preset group may be all HARQ processes on the second carrier; the second carrier is a carrier scheduled by the second signaling or a carrier indicated in the second signaling or transmits the second signal command carrier. The preset group may be determined in a protocol-predefined manner. For example, the terminal device adopts the carrier aggregation mode of 2 carriers (carrier 1 and 2) for transmission, the first signaling is used to schedule carrier 1, and the second signaling is used to schedule carrier 2. Once the terminal device enables the enhanced Type-3 HARQ-ACK codebook for feedback, a preset group including two groups of HARQ processes can be formed according to the protocol. The first group of HARQ processes in the two groups of HARQ processes includes all the HARQ processes corresponding to carrier 1, and the second group of HARQ processes in the two groups of HARQ processes includes all the HARQ processes corresponding to carrier 2.

The following describes the embodiment of the present application in more detail with reference to specific examples. It should be noted that the examples in FIG. 6 to FIG. 7 are only intended to help those skilled in the art understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to specific numerical values or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes according to the given examples in FIG. 6 to FIG. 7 , and such modifications or changes also fall within the scope of the embodiments of the present application.

In the example of FIG. 6 , the preset group adopts the form shown in Table 1 above. Referring to FIG. 6, when the terminal device receives the first signaling, and the first signaling indicates that a group of HARQ processes corresponding to 10 is the first group of HARQ processes, and the first signaling instructs the terminal device to transmit through time slot n+3 Feedback information corresponding to the first group of HARQ processes. It can be seen from Table 1 that the first signaling indicates carriers 1 and 2, therefore, the first group of HARQ processes are all HARQ processes corresponding to carriers 1 and 2.

Further, the terminal device receives second signaling, the second signaling indicates that a group of HARQ processes corresponding to 11 is the first group of HARQ processes, and the second signaling instructs the terminal device to transmit the second HARQ process through time slot n+3 Feedback information corresponding to the process. It can be known from Table 1 that the second signaling indicates carriers 2 and 3, therefore, the second group of HARQ processes are all HARQ processes corresponding to carriers 2 and 3.

Therefore, the enhanced Type-3 HARQ-ACK codebook generated by the terminal device according to the first signaling and the second signaling includes feedback information corresponding to all HARQ processes on carriers 1, 2, and 3. For example, the generated enhanced Type-3 HARQ-ACK codebook can be {b _1,1 ,...,b _1,8 ,b _2,1 ,...,b _2,4 ,b _3,1 ,...,b _3,16 }, where b _i,j is the ACK/NACK corresponding to HARQ process j on carrier i; or, the generated enhanced Type-3 HARQ-ACK codebook can be {b _1,1 ,NDI _1,1 ,… ,b _1,8 ,NDI _1,8 ,b _2,1 ,NDI _2,1 ,...,b _2,4 ,NDI _2,4 ,b _3,1 ,NDI _3,1 ,...,b _{3, 16} , NDI _{3, 16} }, wherein b _{i, j} is the ACK/NACK corresponding to the HARQ process j on the carrier i, and NDI _{i, j} is the NDI corresponding to the HARQ process j last received by the terminal device on the carrier i.

The Type-3 HARQ-ACK codebook needs to use 1-bit signaling overhead to indicate whether to use the Type-3 HARQ-ACK codebook for feedback. The enhanced Type-3 HARQ-ACK codebook provided in the embodiment of the present application uses 2-bit signaling overhead to trigger the feedback of the enhanced Type-3 HARQ-ACK codebook corresponding to various carrier combinations. It can be seen that the embodiment of the present application can flexibly trigger the enhanced Type-3 HARQ-ACK codebook feedback corresponding to various carrier combinations while introducing a small amount of signaling overhead. Moreover, as the number of carriers increases, the gain of the feedback method provided by the embodiment of the present application will be greater. For example, see Table 5. Table 5 gives an example of 5-carrier aggregation. In this example, only 2 bits can be used to flexibly trigger the enhanced Type-3 HARQ-ACK corresponding to various carrier combinations in 5-carrier aggregation. Codebook feedback. In the example in Table 5, if the signaling (which can be the first signaling and/or the second signaling mentioned above) indicates 01, it can indicate that the enhanced Type-3 HARQ-ACK codebook includes all HARQ signals on carrier 1. Feedback information corresponding to the process. If the signaling indication is 10, it may indicate that the enhanced Type-3 HARQ-ACK codebook includes feedback information corresponding to all HARQ processes on carrier 2 and carrier 3 .

table 5

signaling	gather
00	null
01	Carrier 1
10	Carrier 2, 3
11	Carrier 4, 5

Fig. 7 is another specific example provided by this application. In the example in FIG. 7 , the preset group adopts the implementation manner described in Example 4 above. The terminal device receives the first signaling and the second signaling. The first signaling is used for scheduling carrier 1, and the second signaling is used for scheduling carrier 2. Therefore, according to the protocol, the preset group may include the first group of HARQ processes and the second group of HARQ processes. The first group of HARQ processes includes all HARQ processes on carrier 1 scheduled by the first signaling. The second group of HARQ processes includes all HARQ processes on carrier 2 scheduled by the second signaling. In the example in FIG. 7 , the first signaling can be indicated by 1 bit. For example, the first signaling indication is 0, indicating that the feedback information of all HARQ processes corresponding to carrier 1 is not triggered; the first signaling indication is 1, indicating that Trigger the feedback information of all HARQ processes corresponding to carrier 1. Similarly, the second signaling can use 1-bit indication, for example, the second signaling indication is 0, indicating that the feedback information of all HARQ processes corresponding to carrier 2 is not triggered; the second signaling indication is 1, indicating that the triggering of carrier 2 corresponds to Feedback information of all HARQ processes. If both the first signaling and the second signaling indicate 1, the enhanced Type-3 HARQ-ACK codebook generated by the terminal device includes feedback information corresponding to all HARQ processes on carriers 1 and 2.

In the example in Figure 7, the signaling overhead is still 1 bit. It can be seen that this example can flexibly trigger the enhanced Type-3 HARQ-ACK codebook feedback corresponding to various carrier combinations without introducing additional signaling overhead. .

As mentioned above, the preset groups corresponding to the first signaling and/or the second signaling may be the same or different. The present application does not specifically limit the manner of determining the preset group corresponding to one of the first signaling and the second signaling. As an implementation manner, when the first signaling and the second signaling are DCI, a preset group corresponding to one of the first signaling and the second signaling may be determined based on a DCI format of the one signaling. For example, if the first signaling adopts DCI format 1_1, the first signaling uses the preset group corresponding to Table 2; and/or, if the second signaling adopts DCI format 1_2, the second signaling uses the preset group corresponding to Table 6. preset group.

Table 6

signaling	gather
0	null
1	The carrier scheduled by the DCI

As another implementation manner, the preset group corresponding to one of the first signaling and the second signaling may be determined based on a carrier scheduled by the one signaling. For example, the first signaling is used to schedule carrier 1, and the second signaling is used to schedule carrier 2. Then the preset group corresponding to the first signaling may be all HARQ processes corresponding to carrier 1. That is, if the signaling indication in the first signaling is 0, it means that the feedback information of all HARQ processes corresponding to carrier 1 is not triggered, and when the signaling indication is 1, it means that the feedback information of all HARQ processes corresponding to carrier 1 is triggered. The situation of the second signaling scheduling carrier 2 is similar, that is, the signaling indication in the second signaling is 0, which means that the feedback information of all HARQ processes corresponding to carrier 2 is not triggered, and the indication is 1, which means that the feedback information of all HARQ processes corresponding to carrier 2 is triggered. Feedback.

Or, as yet another implementation manner, the preset group corresponding to one of the first signaling and the second signaling may also transmit the control resource set CORESET of the one signaling based on the carrier transmitting the one signaling, Or determine the search space for transmitting the one signaling.

The method embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 7 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 8 to FIG. 10 . It should be understood that the descriptions of the method embodiments correspond to the descriptions of the device embodiments, therefore, for parts not described in detail, reference may be made to the foregoing method embodiments.

FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. The terminal device 800 in FIG. 8 includes a first receiving module 810 , a second receiving module 820 and a generating module 830 .

The first receiving module 810 may be configured to receive first signaling. The first signaling is used to instruct the terminal device to feed back the feedback information corresponding to the first group of HARQ processes.

The second receiving module 820 may be configured to receive the second signaling. The second signaling is used to instruct the terminal device to feed back the feedback information corresponding to the second group of HARQ processes.

Wherein, the HARQ processes included in the first group of HARQ processes are partly or completely different from the HARQ processes included in the second group of HARQ processes.

The generation module 830 may be configured to generate a feedback codebook. The feedback codebook includes feedback information of the third group of HARQ processes. The third group of HARQ processes includes the first group of HARQ processes and the second group of HARQ processes.

Optionally, the first physical channel is configured to carry feedback information corresponding to the first group of HARQ processes, and the second physical channel is configured to carry feedback information corresponding to the second group of HARQ processes. Wherein, the first physical channel overlaps with the second physical channel; or the first physical channel and the second physical channel are in the same time unit.

Optionally, the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes are transmitted within the same time unit.

Optionally, both the first group of HARQ processes and the second group of HARQ processes belong to the first preset group; or the first group of HARQ processes belongs to the first preset group, and the second group of HARQ processes belongs to the second preset group.

Optionally, a group of HARQ processes in the first preset group includes: all HARQ processes on the first carrier, where the first carrier is the carrier scheduled by the first signaling or the carrier indicated in the first signaling or the carrier that transmits the first One signaling carrier; or, all HARQ processes on at least one carrier; or, n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or, m HARQ processes on at least one carrier process, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.

Optionally, a group of HARQ processes in the second preset group includes: all HARQ processes on the second carrier, where the second carrier is the carrier scheduled by the second signaling or the carrier indicated in the second signaling or the carrier that transmits the first Two signaling carriers; or, all HARQ processes on at least one carrier; or, n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or, m HARQ processes on at least one carrier process, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.

Optionally, the maximum number of HARQ processes includes: the maximum number of HARQ processes supported by the terminal device; or, the maximum number of HARQ processes configured for the terminal device.

Optionally, the terminal device 800 may further include a third receiving module 840 . The third receiving module may be configured to receive configuration signaling, where the configuration signaling is used to indicate the first preset group or the second preset group.

Optionally, the preset group corresponding to one of the first signaling and the second signaling is determined based on at least one of the following information: the downlink control information DCI format of the one signaling; The carrier for signaling; the control resource set CORESET for transmitting the one signaling; the search space for transmitting the one signaling; and the carrier for scheduling the one signaling.

Optionally, the feedback codebook is transmitted through a third physical channel, where the third physical channel is determined based on the second signaling. The time domain position of the second signaling is after the time domain position of the first signaling, or the number of the carrier transmitting the second signaling is greater than or smaller than the number of the carrier transmitting the first signaling.

Optionally, the time unit is at least one time slot, at least one sub-slot or at least one symbol.

Optionally, the third group of HARQ processes is the union of the first group of HARQ processes and the second group of HARQ processes; or, the third group of HARQ processes is an effective HARQ in the union of the first group of HARQ processes and the second group of HARQ processes process.

FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the present application. The network device 900 in FIG. 9 includes a first sending module 910 , a second sending module 920 and a first receiving unit 930 .

The first sending module 910 may be configured to send first signaling. The first signaling is used to instruct the terminal device to feed back the feedback information corresponding to the first group of HARQ processes.

The second sending module 920 may be configured to send the second signaling. The second signaling is used to instruct the terminal device to feed back the feedback information corresponding to the second group of HARQ processes.

Wherein, the HARQ processes included in the first group of HARQ processes are partly or completely different from the HARQ processes included in the second group of HARQ processes.

The first receiving module 930 may be configured to receive a feedback codebook. The feedback codebook includes feedback information of the third group of HARQ processes. The third group of HARQ processes includes the first group of HARQ processes and the second group of HARQ processes.

Optionally, the first physical channel is configured to carry feedback information corresponding to the first group of HARQ processes, and the second physical channel is configured to carry feedback information corresponding to the second group of HARQ processes. Wherein, the first physical channel overlaps with the second physical channel; or the first physical channel and the second physical channel are in the same time unit.

Optionally, the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes are transmitted within the same time unit.

Optionally, both the first group of HARQ processes and the second group of HARQ processes belong to the first preset group; or the first group of HARQ processes belongs to the first preset group, and the second group of HARQ processes belongs to the second preset group.

Optionally, a group of HARQ processes in the first preset group includes: all HARQ processes on the first carrier, where the first carrier is the carrier scheduled by the first signaling or the carrier indicated in the first signaling or the carrier that transmits the first One signaling carrier; or, all HARQ processes on at least one carrier; or, n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or, m HARQ processes on at least one carrier process, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.

Optionally, a group of HARQ processes in the second preset group includes: all HARQ processes on the second carrier, where the second carrier is the carrier scheduled by the second signaling or the carrier indicated in the second signaling or the carrier that transmits the first Two signaling carriers; or, all HARQ processes on at least one carrier; or, n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or, m HARQ processes on at least one carrier process, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.

Optionally, the maximum number of HARQ processes includes: the maximum number of HARQ processes supported by the terminal device; or, the maximum number of HARQ processes configured for the terminal device.

Optionally, the network device 900 may further include a third sending module 940 . The third sending module may be configured to send configuration signaling, where the configuration signaling is used to indicate the first preset group or the second preset group.

Optionally, the preset group corresponding to one of the first signaling and the second signaling is determined based on at least one of the following information: the downlink control information DCI format of the one signaling; The carrier for signaling; the control resource set CORESET for transmitting the one signaling; the search space for transmitting the one signaling; and the carrier for scheduling the one signaling.

Optionally, the feedback codebook is transmitted through a third physical channel, where the third physical channel is determined based on the second signaling. The time domain position of the second signaling is after the time domain position of the first signaling, or the number of the carrier transmitting the second signaling is greater than or smaller than the number of the carrier transmitting the first signaling.

Optionally, the time unit is at least one time slot, at least one sub-slot or at least one symbol.

Optionally, the third group of HARQ processes is the union of the first group of HARQ processes and the second group of HARQ processes; or the third group of HARQ processes is an effective HARQ process in the union of the first group of HARQ processes and the second group of HARQ processes .

Fig. 10 is a schematic structural diagram of a feedback device according to an embodiment of the present application. The dashed line in Figure 10 indicates that the unit or module is optional. The apparatus 1000 may be used to implement the methods described in the foregoing method embodiments. The apparatus 1000 may be a chip, a terminal device or a network device.

Apparatus 1000 may include one or more processors 1010 . The processor 1010 can support the device 1000 to implement the methods described in the foregoing method embodiments. The processor 1010 may be a general purpose processor or a special purpose processor. For example, the processor can be a central processing unit (central processing unit, CPU). Alternatively, the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), off-the-shelf programmable gate arrays (field programmable gate arrays, FPGAs) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

Apparatus 1000 may also include one or more memories 1020 . A program is stored in the memory 1020, and the program can be executed by the processor 1010, so that the processor 1010 executes the methods described in the foregoing method embodiments. The memory 1020 may be independent of the processor 1010 or may be integrated in the processor 1010 .

The apparatus 1000 may also include a transceiver 1030 . The processor 1010 can communicate with other devices or chips through the transceiver 1030 . For example, the processor 1010 may send and receive data with other devices or chips through the transceiver 1030 .

The embodiment of the present application also provides a computer-readable storage medium for storing programs. The computer-readable storage medium can be applied to the terminal device or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.

The embodiment of the present application also provides a computer program product. The computer program product includes programs. The computer program product can be applied to the terminal device or the network device provided in the embodiments of the present application, and the program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.

The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or the network device provided in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the terminal device or the network device in the various embodiments of the present application.

It should be understood that in this embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.

It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B may mean: A exists alone, and A and B exist at the same time , there are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

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

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

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

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be read by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (digital video disc, DVD)) or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )wait.

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

Claims (60)

1. A feedback method, characterized in that, comprising:

   The terminal device receives first signaling, where the first signaling is used to instruct the terminal device to feed back feedback information corresponding to the first group of hybrid automatic repeat request HARQ processes;

   The terminal device receives second signaling, where the second signaling is used to instruct the terminal device to feed back feedback information corresponding to a second group of HARQ processes, and the HARQ processes included in the first group of HARQ processes are the same as the first group of HARQ processes. The HARQ processes included in the two groups of HARQ processes are partially or completely different;

   The terminal device generates a feedback codebook, where the feedback codebook includes feedback information of a third group of HARQ processes, where the third group of HARQ processes includes the first group of HARQ processes and the second group of HARQ processes.
2. The method according to claim 1, wherein the first physical channel is configured to carry the feedback information corresponding to the first group of HARQ processes, and the second physical channel is configured to carry the second group of HARQ processes Corresponding feedback information, of which:

   the first physical channel overlaps with the second physical channel; or,

   The first physical channel and the second physical channel are in the same time unit.
3. The method according to claim 1, wherein the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes are transmitted within the same time unit.
4. The method according to any one of claims 1-3, wherein both the first group of HARQ processes and the second group of HARQ processes belong to a first preset group; or,

   The first group of HARQ processes belongs to a first preset group, and the second group of HARQ processes belongs to a second preset group.
5. The method according to claim 4, wherein a group of HARQ processes in the first preset group comprises:

   All HARQ processes on the first carrier, where the first carrier is a carrier scheduled by the first signaling or a carrier indicated in the first signaling or a carrier transmitting the first signaling; or

   all HARQ processes on at least one carrier; or

   n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

   There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
6. The method according to claim 4, wherein a group of HARQ processes in the second preset group comprises:

   All HARQ processes on the second carrier, where the second carrier is a carrier scheduled by the second signaling or a carrier indicated in the second signaling or a carrier that transmits the second signaling; or

   all HARQ processes on at least one carrier; or

   n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

   There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
7. The method according to claim 5 or 6, wherein the maximum number of HARQ processes comprises:

   The maximum number of HARQ processes supported by the terminal device; or,

   The maximum number of HARQ processes configured for the terminal device.
8. The method according to any one of claims 4-7, wherein the method further comprises:

   The terminal device receives configuration signaling, where the configuration signaling is used to indicate the first preset group or the second preset group.
9. The method according to any one of claims 4-8, wherein the preset group corresponding to one of the first signaling and the second signaling is based on at least one of the following information Sure:

   The downlink control information DCI format of the one signaling;

   a carrier for transmitting the one signaling;

   transmit the control resource set CORESET of the one signaling;

   transmitting the one signaled search space; and,

   The carrier scheduled by the one signaling.
10. The method according to any one of claims 1-9, wherein the feedback codebook is transmitted through a third physical channel, and the third physical channel is determined based on the second signaling, wherein the first The time domain position of the second signaling is after the time domain position of the first signaling, or the number of the carrier transmitting the second signaling is greater than or smaller than the number of the carrier transmitting the first signaling.
11. The method according to claim 2 or 3, wherein the time unit is at least one time slot, at least one sub-slot or at least one symbol.
12. The method according to any one of claims 1-11, characterized in that,

    The third set of HARQ processes is a union of the first set of HARQ processes and the second set of HARQ processes; or,

    The third group of HARQ processes is an effective HARQ process in a union set of the first group of HARQ processes and the second group of HARQ processes.
13. A feedback method, characterized in that, comprising:

    The network device sends first signaling, where the first signaling is used to instruct the terminal device to feed back feedback information corresponding to the first group of hybrid automatic repeat request HARQ processes;

    The network device sends second signaling, where the second signaling is used to instruct the terminal device to feed back feedback information corresponding to a second group of HARQ processes, where the HARQ processes included in the first group of HARQ processes are the same as the first group of HARQ processes The HARQ processes included in the two groups of HARQ processes are partially or completely different;

    The network device receives a feedback codebook, where the feedback codebook includes feedback information of a third group of HARQ processes, where the third group of HARQ processes includes the first group of HARQ processes and the second group of HARQ processes.
14. The method according to claim 13, wherein the first physical channel is configured to carry the feedback information corresponding to the first group of HARQ processes, and the second physical channel is configured to carry the second group of HARQ processes Corresponding feedback information, of which:

    the first physical channel overlaps with the second physical channel; or,

    The first physical channel and the second physical channel are in the same time unit.
15. The method according to claim 13, wherein the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes are transmitted within the same time unit.
16. The method according to any one of claims 13-15, wherein both the first group of HARQ processes and the second group of HARQ processes belong to a first preset group; or,

    The first group of HARQ processes belongs to a first preset group, and the second group of HARQ processes belongs to a second preset group.
17. The method according to claim 16, wherein a group of HARQ processes in the first preset group comprises:

    All HARQ processes on the first carrier, where the first carrier is a carrier scheduled by the first signaling or a carrier indicated in the first signaling or a carrier transmitting the first signaling; or

    all HARQ processes on at least one carrier; or

    n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

    There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
18. The method according to claim 16, wherein a group of HARQ processes in the second preset group comprises:

    All HARQ processes on the second carrier, where the second carrier is a carrier scheduled by the second signaling or a carrier indicated in the second signaling or a carrier that transmits the second signaling; or

    all HARQ processes on at least one carrier; or

    n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

    There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
19. The method according to claim 17 or 18, wherein the maximum number of HARQ processes comprises:

    The maximum number of HARQ processes supported by the terminal device; or,

    The maximum number of HARQ processes configured for the terminal device.
20. The method according to any one of claims 16-19, further comprising:

    The network device sends configuration signaling, where the configuration signaling is used to indicate the first preset group or the second preset group.
21. The method according to any one of claims 16-20, wherein the preset group corresponding to one of the first signaling and the second signaling is based on at least one of the following information Sure:

    The downlink control information DCI format of the one signaling;

    a carrier for transmitting the one signaling;

    transmit the control resource set CORESET of the one signaling;

    transmitting the one signaled search space; and,

    The carrier scheduled by the one signaling.
22. The method according to any one of claims 13-21, wherein the feedback codebook is transmitted through a third physical channel, and the third physical channel is determined based on the second signaling, wherein the first The time domain position of the second signaling is after the time domain position of the first signaling, or the number of the carrier transmitting the second signaling is greater than or smaller than the number of the carrier transmitting the first signaling.
23. The method according to claim 14 or 15, wherein the time unit is at least one time slot, at least one sub-slot or at least one symbol.
24. The method according to any one of claims 13-23, characterized in that,

    The third set of HARQ processes is a union of the first set of HARQ processes and the second set of HARQ processes; or,

    The third group of HARQ processes is an effective HARQ process in a union set of the first group of HARQ processes and the second group of HARQ processes.
25. A terminal device, characterized in that it includes:

    The first receiving module is configured to receive first signaling, where the first signaling is used to instruct the terminal device to feed back feedback information corresponding to the first group of hybrid automatic repeat request HARQ processes;

    The second receiving module is configured to receive second signaling, where the second signaling is used to instruct the terminal device to feed back feedback information corresponding to the second group of HARQ processes, the HARQ processes included in the first group of HARQ processes Partially or completely different from the HARQ processes included in the second set of HARQ processes;

    A generating module configured to generate a feedback codebook, the feedback codebook including feedback information of a third group of HARQ processes, the third group of HARQ processes including the first group of HARQ processes and the second group of HARQ processes .
26. The terminal device according to claim 25, wherein the first physical channel is configured to carry the feedback information corresponding to the first group of HARQ processes, and the second physical channel is configured to carry the second group of HARQ processes. Feedback information corresponding to the process, where:

    the first physical channel overlaps with the second physical channel; or,

    The first physical channel and the second physical channel are in the same time unit.
27. The terminal device according to claim 25, wherein the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes are transmitted within the same time unit.
28. The terminal device according to any one of claims 25-27, wherein both the first group of HARQ processes and the second group of HARQ processes belong to a first preset group; or,

    The first group of HARQ processes belongs to a first preset group, and the second group of HARQ processes belongs to a second preset group.
29. The terminal device according to claim 28, wherein a set of HARQ processes in the first preset group includes:

    All HARQ processes on the first carrier, where the first carrier is a carrier scheduled by the first signaling or a carrier indicated in the first signaling or a carrier transmitting the first signaling; or

    all HARQ processes on at least one carrier; or

    n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

    There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
30. The terminal device according to claim 28, wherein a set of HARQ processes in the second preset group includes:

    All HARQ processes on the second carrier, where the second carrier is a carrier scheduled by the second signaling or a carrier indicated in the second signaling or a carrier that transmits the second signaling; or

    all HARQ processes on at least one carrier; or

    n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

    There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
31. The terminal device according to claim 29 or 30, wherein the maximum number of HARQ processes comprises:

    The maximum number of HARQ processes supported by the terminal device; or,

    The maximum number of HARQ processes configured for the terminal device.
32. The terminal device according to any one of claims 28-31, wherein the terminal device further comprises:

    The third receiving module is configured to receive configuration signaling, where the configuration signaling is used to indicate the first preset group or the second preset group.
33. The terminal device according to any one of claims 28-32, wherein the preset group corresponding to one of the first signaling and the second signaling is based on at least one of the following information Kind of sure:

    The downlink control information DCI format of the one signaling;

    a carrier for transmitting the one signaling;

    transmit the control resource set CORESET of the one signaling;

    transmitting the one signaled search space; and,

    The carrier scheduled by the one signaling.
34. The terminal device according to any one of claims 25-33, wherein the feedback codebook is transmitted through a third physical channel, and the third physical channel is determined based on the second signaling, wherein the The time domain position of the second signaling is after the time domain position of the first signaling, or the number of the carrier transmitting the second signaling is greater than or smaller than the number of the carrier transmitting the first signaling.
35. The terminal device according to claim 26 or 27, wherein the time unit is at least one time slot, at least one sub-slot or at least one symbol.
36. The terminal device according to any one of claims 25-35, characterized in that,

    The third set of HARQ processes is a union of the first set of HARQ processes and the second set of HARQ processes; or,

    The third group of HARQ processes is an effective HARQ process in a union set of the first group of HARQ processes and the second group of HARQ processes.
37. A network device, characterized in that it includes:

    The first sending module is configured to send the first signaling, and the first signaling is used to instruct the terminal device to feed back the feedback information corresponding to the first group of hybrid automatic repeat request HARQ processes;

    The second sending module is configured to send second signaling, where the second signaling is used to instruct the terminal device to feed back feedback information corresponding to the second group of HARQ processes, the HARQ process included in the first group of HARQ processes Partially or completely different from the HARQ processes included in the second set of HARQ processes;

    The first receiving module is configured to receive a feedback codebook, the feedback codebook includes feedback information of a third group of HARQ processes, and the third group of HARQ processes includes the first group of HARQ processes and the second group of HARQ process.
38. The network device according to claim 37, wherein the first physical channel is configured to carry the feedback information corresponding to the first group of HARQ processes, and the second physical channel is configured to carry the second group of HARQ processes. Feedback information corresponding to the process, where:

    the first physical channel overlaps with the second physical channel; or,

    The first physical channel and the second physical channel are in the same time unit.
39. The network device according to claim 37, wherein the feedback information corresponding to the first group of HARQ processes and the feedback information corresponding to the second group of HARQ processes are transmitted within the same time unit.
40. The network device according to any one of claims 37-39, wherein both the first group of HARQ processes and the second group of HARQ processes belong to a first preset group; or,

    The first group of HARQ processes belongs to a first preset group, and the second group of HARQ processes belongs to a second preset group.
41. The network device according to claim 40, wherein a group of HARQ processes in the first preset group includes:

    All HARQ processes on the first carrier, where the first carrier is a carrier scheduled by the first signaling or a carrier indicated in the first signaling or a carrier transmitting the first signaling; or

    all HARQ processes on at least one carrier; or

    n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

    There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
42. The network device according to claim 40, wherein a group of HARQ processes in the second preset group includes:

    All HARQ processes on the second carrier, where the second carrier is a carrier scheduled by the second signaling or a carrier indicated in the second signaling or a carrier that transmits the second signaling; or

    all HARQ processes on at least one carrier; or

    n HARQ processes, where n is less than or equal to the maximum number of HARQ processes, and n is a positive integer; or

    There are m HARQ processes on at least one carrier, where m is less than or equal to the maximum number of HARQ processes, and m is a positive integer.
43. The network device according to claim 41 or 42, wherein the maximum number of HARQ processes comprises:

    The maximum number of HARQ processes supported by the terminal device; or,

    The maximum number of HARQ processes configured for the terminal device.
44. The network device according to any one of claims 40-43, wherein the network device further comprises:

    The third sending module is configured to send configuration signaling, where the configuration signaling is used to indicate the first preset group or the second preset group.
45. The network device according to any one of claims 40-44, wherein the preset group corresponding to one of the first signaling and the second signaling is based on at least one of the following information Kind of sure:

    The downlink control information DCI format of the one signaling;

    a carrier for transmitting the one signaling;

    transmit the control resource set CORESET of the one signaling;

    transmitting the one signaled search space; and,

    The carrier scheduled by the one signaling.
46. The network device according to any one of claims 37-45, wherein the feedback codebook is transmitted through a third physical channel, and the third physical channel is determined based on the second signaling, wherein the The time domain position of the second signaling is after the time domain position of the first signaling, or the number of the carrier transmitting the second signaling is greater than or smaller than the number of the carrier transmitting the first signaling.
47. The network device according to claim 38 or 39, wherein the time unit is at least one time slot, at least one sub-slot or at least one symbol.
48. The network device according to any one of claims 37-47, characterized in that,

    The third set of HARQ processes is a union of the first set of HARQ processes and the second set of HARQ processes; or,

    The third group of HARQ processes is an effective HARQ process in a union set of the first group of HARQ processes and the second group of HARQ processes.
49. A terminal device, characterized in that it includes a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the program described in any one of claims 1-12. Methods.
50. A network device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the programs in the memory to execute any one of claims 13-24 Methods.
51. An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 1-12.
52. An apparatus, characterized by comprising a processor, configured to call a program from a memory to execute the method according to any one of claims 13-24.
53. A chip, characterized by comprising a processor, configured to call a program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-12.
54. A chip, characterized by comprising a processor for calling a program from a memory, so that a device installed with the chip executes the method according to any one of claims 13-24.
55. A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 1-12.
56. A computer-readable storage medium, which is characterized in that a program is stored thereon, and the program causes a computer to execute the method according to any one of claims 13-24.
57. A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 1-12.
58. A computer program product, characterized by comprising a program, the program causes a computer to execute the method according to any one of claims 13-24.
59. A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1-12.
60. A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 13-24.

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