WO2021062638A1

WO2021062638A1 - Method and device for sending and receiving feedback information

Info

Publication number: WO2021062638A1
Application number: PCT/CN2019/109472
Authority: WO
Inventors: 林亚男; 吴作敏
Original assignee: Oppo广东移动通信有限公司; Oppo广东移动通信有限公司深圳分公司
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-04-08
Also published as: CN113661761A; CN113661761B

Abstract

Provided are a method and device for sending and receiving feedback information. The method comprises: a terminal device receiving first signaling, wherein the first signaling is used for instructing the terminal device to transmit feedback information corresponding to at least one target group, wherein downlink channels corresponding to the same target group in the at least one target group belong to the same carrier; and the terminal device sending a feedback information codebook, wherein the feedback information codebook comprises the feedback information corresponding to the at least one target group. By means of the first signaling, the terminal device can be triggered, by taking at least one group corresponding to one carrier as a unit, to feed back the feedback information of the downlink channels, instead of triggering, by taking a plurality of carriers as a unit, the terminal device to feed back the feedback information of the downlink channels, thereby preventing the feedback information having a lot of redundant information due to an LBT failure of a certain carrier; and the feedback efficiency can be improved.

Description

Method and equipment for sending and receiving feedback information

Technical field

The embodiments of the present application relate to the field of communications, and more specifically, to methods and devices for sending and receiving feedback information.

Background technique

New Radio (NR) version 15 (Rel-15) supports two hybrid automatic repeat request (HARQ)-acknowledgement (ACK) codebook generation methods. That is, the semi-static HARQ-ACK codebook generation method and the dynamic HARQ-ACK codebook generation method.

Among them, in the dynamic HARQ-ACK codebook generation method, the terminal device needs to determine the actual scheduling quantity according to the Downlink Assignment Index (DAI) in the Downlink Control Information (DCI). For example, when the terminal device is only configured with a single carrier, the DAI information field includes a 2-bit cumulative DAI (counter DAI, C-DAI). When the terminal device is configured with multiple downlink carriers, the DAI information field includes 4 bits, of which 2 bits are C-DAI and 2 bits are total DAI (T-DAI). In this way, the terminal device can determine the number of bits of feedback information according to the scheduling situation of the base station, thereby reducing feedback overhead. Among them, the physical meaning of the value of C-DAI is the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled until the current physical downlink control channel (PDCCH) detection position of the current carrier or indicates semi-permanent The number of PDCCHs released by Semi-Persistent Scheduling (SPS) resources. The physical meaning of the value of T-DAI is the total number of scheduled PDSCHs or PDCCHs indicating the release of SPS resources until the current PDCCH detection position.

In the NR-U system, if the counting method of Rel-15C-DAI and T-DAI is used, that is, joint statistics of different carriers. When a listen before talk (LBT) on a certain carrier fails, the data prepared in advance for this carrier cannot be transmitted. However, because DCI information needs to be prepared in advance (encoding, mapping, and other physical layer processing) before sending data, and when preparing DCI (statistical C-DAI, T-DAI), the actual LBT result cannot be known, which will cause C-DAI The count result of T-DAI is larger than the actual number of PDSCHs transmitted, resulting in a large amount of redundant information in the acknowledgement/non-acknowledgement (ACK/NACK) feedback information, which reduces the feedback efficiency.

Summary of the invention

A method and device for sending and receiving feedback information are provided, which can improve transmission efficiency.

In the first aspect, a method for sending feedback information is provided, including:

The terminal device receives first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, wherein the downlink channels corresponding to the same target group in the at least one target group belong to the same Carrier

The terminal sends a feedback information codebook, and the feedback information codebook includes feedback information corresponding to the at least one target group.

In the second aspect, a method for receiving feedback information is provided, including:

The network device sends first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, where the downlink channels corresponding to the same target group in the at least one target group belong to the same carrier;

The network device receives a feedback information codebook, and the feedback information codebook includes feedback information corresponding to the at least one target group.

In a third aspect, a terminal device is provided, which is used to execute the method in the above-mentioned first aspect or each of its implementation modes. Specifically, the terminal device includes a functional module for executing the method in the foregoing first aspect or each of its implementation manners.

In a fourth aspect, a network device is provided, which is used to execute the method in the above second aspect or each of its implementation manners. Specifically, the network device includes a functional module for executing the method in the foregoing second aspect or each of its implementation manners.

In a fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the foregoing first aspect or each of its implementation manners.

In a sixth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned second aspect or each of its implementation manners.

In a seventh aspect, a chip is provided, which is used to implement any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof. Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect to the second aspect or each implementation manner thereof In the method.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.

In a ninth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.

In a tenth aspect, a computer program is provided, which when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each of its implementation manners.

Based on the above technical solution, when the terminal device can be instructed to transmit feedback information corresponding to at least one target group through the first signaling, since the terminal device sends the feedback information in a group unit, and the same target group in the at least one target group corresponds to The downlink channels belong to the same carrier. Therefore, the network device can trigger the terminal device to feed back the feedback information of the downlink channel that has been successfully transmitted on at least one carrier due to the success of LBT through the first signaling, thereby avoiding triggering the terminal device to feed back due to LBT failure. The feedback information of the unsuccessful transmission of the downlink channel can therefore avoid a large amount of redundant information in the feedback information caused by the failure of the LBT, thereby improving the feedback efficiency.

In other words, through the first signaling, it is possible to trigger the terminal device to feed back the feedback information of the downlink channel in units of at least one group corresponding to one carrier, instead of triggering the terminal device to feed back the feedback information of the downlink channel in units of multiple carriers, so as to avoid In order to improve the feedback efficiency, the LBT failure of a certain carrier will cause a large amount of redundant information in its feedback information.

Description of the drawings

Figure 1 is an example of the application scenario of this application.

Fig. 2 is a schematic block diagram of DAI in an embodiment of the present application.

Fig. 3 is a schematic block diagram of an NFI in an embodiment of the present application.

Fig. 4 is a schematic block diagram of the relationship between DAI and LBT in an embodiment of the present application.

FIG. 5 is a schematic flowchart of a method for sending feedback information or receiving feedback information according to an embodiment of the present application.

Figures 6 to 8 are schematic block diagrams of the first signaling and group in an embodiment of the present application.

FIG. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication device according to an embodiment of the present application.

FIG. 12 is a schematic block diagram of a chip of an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

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

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

It should be understood that the embodiment of the present application only uses the communication system 100 for exemplary description, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS), 5G communication system (also known as New Radio (NR) communication system), or future communication system, etc.

In the communication system 100 shown in FIG. 1, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device can provide communication coverage for a specific geographic area, and can communicate with the terminal device 110 (for example, UE) located in the coverage area.

The network equipment 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) equipment, Either the base station (gNB) in the NR system, or the wireless controller in the Cloud Radio Access Network (CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, or a wearable Equipment, hubs, switches, bridges, routers, or network equipment in the future evolution of the Public Land Mobile Network (PLMN).

The terminal device 110 may be any terminal device, which includes, but is not limited to, a terminal device connected to the network device 120 or other terminal devices in a wired or wireless connection.

For example, the terminal device 110 may refer to an access terminal, user equipment (User Equipment, UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication Equipment, user agent, or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolution networks, etc.

The terminal device 110 may be used for device-to-device (D2D) communication.

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

Each functional unit in the communication system 100 may also establish a connection through a next generation network (NG) interface to achieve communication.

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

Figure 1 exemplarily shows a base station, a core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and the coverage of each base station may include other numbers of terminals. Equipment, this embodiment of the application does not limit this.

It should be understood that all devices with communication functions in the network/system in the embodiments of the present application can be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 120 and a terminal device 110 having communication functions, and the network device 120 and the terminal device 110 may be the above-mentioned devices, which will not be repeated here; The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

In some embodiments of the present application, the communication system can be applied to an NR network.

In other words, the terminal device 100 can support dynamically determining the hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) feedback timing.

Specifically, the terminal device 100 first determines a pre-configured feedback timing set, where the pre-configured set includes a maximum of 8 timing values. For the downlink control information (Downlink Control Information, DCI) format 1_0 (format 1_0), the The set is agreed upon by the agreement. For DCI format 1_1, the set is configured by the network device. The physical downlink shared channel-HARQ feedback timing indicator in the DCI (Physical Downlink Shared Channel, PDSCH-to-HARQ_feedback timing indicator) information field indicates a value in the set as k. The end position of the PDSCH scheduled by the DCI is in the time slot (slot) n, and the corresponding ACK/NACK (ACK/NACK) information is transmitted in slot n+k.

In addition, the terminal device 110 can also support two hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ)-acknowledgement (ACK) codebook generation methods. That is, the semi-static HARQ-ACK codebook generation method and the dynamic HARQ-ACK codebook generation method.

In the semi-static HARQ-ACK codebook generation method, the number of ACK/NACK information bits carried in a physical uplink control channel (PUCCH) is determined semi-statically, regardless of the actual scheduling situation. The advantage of this method is that the base station and the terminal can keep the same understanding of the feedback information, and avoid receiving errors caused by understanding ambiguity.

In the dynamic HARQ-ACK codebook generation method, the terminal device needs to determine the actual scheduling quantity according to the Downlink Assignment Index (DAI) in the Downlink Control Information (DCI). For example, when the terminal device is only configured with a single carrier, the DAI information field includes a 2-bit cumulative DAI (counter DAI, C-DAI). When the terminal device is configured with multiple downlink carriers, the DAI information field includes 4 bits, of which 2 bits are C-DAI and 2 bits are total DAI (T-DAI). In this way, the terminal device can determine the number of bits of feedback information according to the scheduling situation of the base station, thereby reducing feedback overhead. Among them, the physical meaning of the value of C-DAI is the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled until the current physical downlink control channel (PDCCH) detection position of the current carrier or indicates semi-permanent The number of PDCCHs released by Semi-Persistent Scheduling (SPS) resources. The physical meaning of the value of T-DAI is the total number of scheduled PDSCHs or PDCCHs indicating the release of SPS resources until the current PDCCH detection position.

As shown in Figure 2, C-DAI and T-DAI respectively refer to the cumulative count and total count of scheduled PDSCH or PDCCH indicating the release of SPS resources on the basis of carrier 0, carrier 1, and carrier 2.

In other words, different carriers are jointly counted.

For DCI format 1_0, when the semi-static HARQ-ACK codebook generation method is adopted, the DAI information field may exist. That is, although the information field is not used, it still exists in the DCI. For DCI format 1_1, when the dynamic HARQ-ACK codebook generation method is adopted, the DAI information field may exist, otherwise it does not exist, and T-DAI will only exist in DCI format 1_1.

In some other embodiments of the present application, the communication system may also be applicable to an NR-U network.

The NR-U network can transmit data on the unlicensed spectrum.

The unlicensed spectrum is a spectrum that can be used for radio equipment communications divided by countries and regions. This spectrum is usually considered to be a shared spectrum. That is, the communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for a proprietary spectrum authorization from the government. In order to allow various communication systems that use the unlicensed spectrum for wireless communication to coexist friendly on the spectrum, some countries or regions have stipulated the regulatory requirements that must be met to use the unlicensed spectrum. For example, in some areas, communication equipment follows the principle of "listen first, speak first", that is, communication equipment needs to perform channel detection before transmitting signals on channels of unlicensed spectrum. Only when the channel detection result is that the channel is idle, The communication device can only perform signal transmission; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot perform signal transmission. In order to ensure fairness, in one transmission, the time that the communication device uses the unlicensed spectrum channel for signal transmission cannot exceed the maximum channel occupation time (Maximum Channel Occupation Time, MCOT). With the development of wireless communication technology, both the LTE system and the NR system will consider deploying networks on the unlicensed spectrum so as to use the unlicensed spectrum to transmit data services.

NR-U can support packet-based ACK/NACK feedback.

For example, the network device indicates the group information to which the PDSCH scheduled by the DCI or the PDCCH carrying the DCI belongs through the DCI. When the network device sends the first signaling to instruct the terminal to feed back ACK/NACK information corresponding to a certain group, the terminal will feed back the feedback information corresponding to all PDSCHs or PDCCHs belonging to the group to the network device together. The network device can trigger the terminal to send the ACK/NACK information of a certain group multiple times, that is, realize the ACK/NACK retransmission. In order to ensure that the base station and the terminal have the same understanding of the number of feedback information bits corresponding to a group, the C-DAI and T-DAI of the physical downlink channel are independently counted in each group. The DCI may further include a new feedback indication (New feedback information, NFI) information field, which is used to indicate that the PDSCH scheduled by the DCI or the ACK/NACK information in the group corresponding to the PDCCH carrying the DCI is cleared.

Fig. 3 is a schematic block diagram of the relationship between NFI and DAI in an embodiment of the present application.

As shown in Figure 3, after the ACK/NACK of the three DCIs corresponding to NFI=0 for feedback group 0 is successfully fed back through PUCCH, the network device can set NFI to 1 when subsequently scheduling feedback group 0 (bit flipping working mode) , Means that the feedback group 0 restarts the organization, that is, the ACK/NACK information corresponding to the previous NFI=0 is released.

In order to ensure that the terminal and the network device have consistent understanding of the downlink channels included in each packet, the first signaling may indicate the NFI information corresponding to the triggered group at the same time. That is, the first signaling may further include NFI information and/or T-DAI information of the trigger group.

In the NR-U system, if the counting method of C-DAI and T-DAI is used, that is, different carriers are jointly counted. When a listen before talk (LBT) on a certain carrier fails, the data prepared in advance for this carrier cannot be transmitted. However, because DCI information needs to be prepared in advance (encoding, mapping, and other physical layer processing) before sending data, and when preparing DCI (statistical C-DAI, T-DAI), the actual LBT result cannot be known, so C- The count results of DAI and T-DAI are larger than the actual number of PDSCHs transmitted, resulting in a large amount of redundant information in the ACK/NACK feedback information, which reduces the feedback efficiency.

Fig. 4 is a schematic block diagram of the relationship between LBT and DAI in an embodiment of the present application.

As shown in Figure 4, when the three downlink channel LBTs on a certain carrier fail, the data prepared in advance for this carrier cannot be transmitted. However, the feedback information still includes 5-bit information {N, N, b3, N, b5}, where N is the occupancy information, and b3 and b5 are valid ACK/NACK information, that is, the feedback information for the downlink channel where the LBT is successful.

The present application provides a method for sending feedback information. When the terminal device transmits the feedback information corresponding to at least one target group through the first signaling, the downlink channels corresponding to the same target group in the at least one target group belong to the same The carrier, thus, can avoid a large amount of redundant information in the feedback information caused by LBT failure, thereby improving the feedback efficiency.

FIG. 2 shows a schematic flowchart of a method 200 for sending feedback information or receiving feedback information according to an embodiment of the present application. The method 200 may be interactively executed by a terminal device and a network device. The terminal device shown in FIG. 2 may be the terminal device shown in FIG. 1, and the network device shown in FIG. 2 may be the access network device shown in FIG. 1.

As shown in FIG. 2, the method 200 includes some or all of the following contents:

S210: The terminal device receives first signaling sent by the network device, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, where the same target group in the at least one target group The corresponding downlink channels belong to the same carrier.

S220: The terminal sends a feedback information codebook to the network device, where the feedback information codebook includes feedback information corresponding to the at least one target group.

For example, the terminal device receives DCI, and the DCI includes the first signaling. Wherein, the feedback information includes acknowledged/non-acknowledged ACK/NACK feedback information. The downlink channel includes PDCCH and/or PDSCH.

When the terminal device can be instructed to transmit feedback information corresponding to at least one target group through the first signaling, since the terminal device sends the feedback information in a group unit, and the downlink channels corresponding to the same target group in the at least one target group belong to the same carrier Therefore, the network device can trigger the terminal device to feed back the feedback information of the downlink channel that has been successfully transmitted on at least one carrier due to the success of the LBT through the first signaling, thereby avoiding triggering the terminal device to feed back the downlink that was not successfully transmitted due to the LBT failure. The feedback information of the channel can therefore avoid a large amount of redundant information in the feedback information caused by the failure of the LBT, thereby improving the feedback efficiency.

For example, in the NR-U carrier aggregation system, when ACK/NACK feedback is performed based on grouping, the downlink channel (PDSCH or PDCCH) contained in one feedback group belongs to one component carrier. Different PDSCHs or PDCCHs in one component carrier can belong to different feedback groups. When the terminal receives the first signaling sent by the network device and feeds back the ACK/NACK information corresponding to at least one target group to the network device, the downlink channel corresponding to the at least one target group (or the downlink channel that satisfies the processing delay) The ACK/NACK information is transmitted at the same time. C-DAI and T-DAI are counted separately in each target group. At this time, only C-DAI may be included in the scheduling signaling. The first signaling may include identification information of the target group. For example, T-DAI.

It should be understood that the target group may be a channel group or a feedback group, which is not limited in this application.

For example, the first signaling may be used to instruct the terminal device to transmit feedback information corresponding to at least one channel group. At this time, when the network device sends scheduling information for scheduling the target downlink channel, the scheduling information may include the count of the target downlink channel in the channel group to which it belongs.

For another example, the first signaling may be used to instruct the terminal device to transmit feedback information corresponding to at least one feedback group. At this time, when the network device sends scheduling information for scheduling the target downlink channel, the scheduling information may include the count of the feedback information of the target downlink channel in the feedback group to which it belongs.

In some embodiments of the present application, the first signaling includes a first group of identification information, the first group of identification information is used to indicate at least one of the A groups supported by the terminal device, and A is a positive integer The at least one target group includes at least one group indicated by the first group identification information.

In other words, the first signaling may indicate the at least one target group through the first group identification information.

For example, if the terminal device supports at most M carriers, it needs to support at least M groups. For example, if the terminal device supports a maximum of 8 groups and the group number is 0-7, when the network device transmits the target physical channel on the carrier, the target physical channel corresponds to one of the 8 groups. When the network device triggers the terminal device to feed back the feedback information of the target physical channel, the first signaling may indicate the group number corresponding to the target physical channel.

That is, the terminal does not expect that physical channels belonging to different carriers belong to the same group.

For another example, if the terminal device supports at most M carriers, it needs to support at least M groups. To avoid scheduling constraints, 2M groups need to be supported optimally. At this time, the DCI of the scheduled physical channel may include log ₂ (2M) bits to indicate the group number corresponding to the physical channel. The first signaling may include 2M bit bitmap indication information indicating which groups are triggered to transmit ACK/NACK information. Preferably, the first signaling is also used to indicate x (preferably x=1) bit NFI information and/or y (preferably y=2) bit T-DAI information corresponding to each trigger group, then The first signaling may include (x+y)*M bits at most.

In this case, the method 200 may further include:

The terminal device cascades the feedback information corresponding to the at least one target group to obtain the feedback information codebook.

By indicating the at least one target channel by the first group identifier, the terminal device can be triggered to feed back the feedback information of the downlink channel in units of at least one group corresponding to one carrier, instead of triggering the terminal device to feed back the downlink channel in units of multiple carriers The feedback information can avoid the problem of a large amount of redundant information in the feedback information caused by the LBT, thereby improving the feedback efficiency. Moreover, the terminal and base station sides are relatively simple to implement,

It should be understood that the group identification information in the present application may be the number of the group, or the indication information used to indicate the number of the group, or the identification information corresponding to the number of the group. Similarly, the carrier identification information may be the number of the carrier, or indication information for indicating the number of the carrier, or identification information corresponding to the number of the carrier.

In some other embodiments of the present application, the first signaling may indicate the at least one target group through a two-dimensional identifier. For example, the terminal device is configured with 5 carriers, and the numbers of the carriers are 0-4 respectively. Each carrier supports up to 2 groups, and the group number (that is, the second group identification information) is 0 and 1. At this time, each group corresponds to {carrier number x, group number y}.

As an example, the first signaling includes a second group of identification information, and the second group of identification information is used to indicate at least one of the B groups supported by the terminal device in one carrier, and B is A positive integer, the at least one target group includes at least one group indicated by the second group identification information in the first carrier. Optionally, the first carrier is a carrier that transmits the first signaling, or the first carrier is a carrier that transmits a physical channel scheduled by the first signaling, or the first carrier is the The carrier indicated by the carrier identification information in the first signaling.

In other words, the at least one target group may be indicated by the identification information of the first carrier and the second group of identification information.

For example, one DCI may be used to trigger the terminal to transmit ACK/NACK information contained in at least one group in one carrier. Specifically, the DCI sent on carrier x or the DCI scheduled for PDSCH transmission on carrier x may trigger at least one group in carrier x. At this time, the DCI may only include group number information (that is, the second group identification information), and the number of the carrier used to transmit the one DCI or the carrier used to transmit the physical channel scheduled by the one DCI may be determined Is the number of the first carrier (that is, the identification information of the first carrier).

Wherein, the one DCI may be used to indicate the physical uplink control channel PUCCH resource used for transmitting the ACK/NACK feedback contained in at least one group in the one carrier, including the slot position, the time domain symbol position in the slot, and Domain location, spread spectrum signaling number, etc.

When receiving the first signaling, the terminal device may receive multiple signalings including the first signaling. In other words, the terminal device receives multiple signalings; wherein the multiple signalings are respectively used to instruct the terminal equipment to transmit feedback information corresponding to multiple groups, and the multiple signalings include the first signaling .

If the resources of the feedback information corresponding to the multiple groups overlap; the terminal device cascades the feedback information corresponding to the multiple groups to obtain the feedback information codebook.

For example, for the feedback information corresponding to the downlink channels in the same group, the terminal device cascades the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or for the same carrier The feedback information corresponding to the group within the group, the terminal device cascades the feedback information corresponding to the group within the same carrier based on the sequence of the group identification; and/or the feedback information corresponding to different carriers, the terminal device is based on the carrier The sequence of the identification information is cascaded with the feedback information corresponding to the different carriers.

In other words, if the PUCCH resources indicated by multiple DCIs overlap (time-domain overlap, time-frequency domain overlap) or are completely the same, the ACK/NACK information originally carried by the multiple PUCCHs are multiplexed and transmitted. The ACK/NACK information originally carried by multiple PUCCHs are concatenated and multiplexed for transmission after joint coding. The cascade can map the ACK/NACK information according to the carrier number sequence, further map the ACK/NACK information for each carrier according to the group number, and map the ACK/NACK information according to the DAI ascending order for each group.

Taking Fig. 6 as an example, the ACK/NACK information corresponding to group 0 in the

carrier

2 and 1 are respectively triggered to feed back, and the resources of PUCCH 1 and PUCCH 2 are respectively indicated, and the time domains of the two overlap. Then the feedback information corresponding to carrier 2 and carrier 1 can be cascaded to get {b _{cc1, dai0} , b _{cc1, dai1} , b _{cc2, dai0} , b _{cc2, dai1} , b _{cc2, dai2} }, where b _{cci, daij} , means ACK/NACK information corresponding to the downlink channel with DAI=j on carrier i. The PUCCH for transmitting the concatenation information may be determined according to the first signaling with a later transmission time. For example, PUCCH 2 determined by the first signaling on carrier 1 may be used.

In other alternative embodiments, it is assumed that the ACK/NACK information corresponding to group 1 in this carrier is triggered on carrier 0 shown in FIG. 6 and the PUCCH 3 resource is indicated. PUCCH 3 does not overlap with

PUCCH

1 and 2, and the terminal device can independently transmit the feedback information codebook corresponding to the target group indicated by each signaling.

Through the second group of identification information, it is possible to trigger the terminal equipment to feed back the feedback information of the downlink channel in units of at least one group corresponding to one carrier, instead of triggering the terminal equipment to feed back the feedback information of the downlink channel in units of multiple carriers, which avoids There is a large amount of redundant information in the feedback information caused by the failure of LBT, which can improve the feedback efficiency.

Moreover, the DCI signaling overhead is relatively small, and the DCI for scheduling the physical channel needs to include 1 bit (assuming that each carrier supports at most 2 groups). The second group identification information indicates the group number corresponding to the physical channel. However, the first signaling only needs to include 1 bit of information to indicate which groups are triggered to transmit ACK/NACK information (for example, the indication "0" indicates that the ACK/NACK feedback information of the group where the physical channel scheduled by the DCI is triggered is triggered, and "1" indicates that it is triggered. ACK/NACK information for 2 groups). Since the number of groups that can be triggered by a first signaling is small (the number of groups supported in each carrier, such as 2), if the first signaling further includes NFI and T-DAI information, the overhead is also small.

It should be noted that, when the at least one target group is indicated by the second group of identification information, the network device and the terminal device may have ambiguities in understanding the feedback information. For example, assuming that the terminal Sebei in Figure 3 did not strive to receive the first signaling on carrier 2, the terminal device will only send the feedback information corresponding to carrier 1 in PUCCH 2, but the network device expects to receive carrier 2 corresponding to carrier 1. Feedback information. However, since the probability of loss of DCI signaling is small, this problem has less impact on the overall system. In addition, network device scheduling can also be used to avoid ambiguity in understanding feedback information between network devices and terminal devices. For example, PUCCHs of different carriers are scheduled on different time domain resources as much as possible so that feedback information is not overlapped to send feedback information.

As another example, the first signaling includes first carrier identification information and a third group of identification information; the first carrier identification information is used to indicate at least one of the multiple carriers supported by the terminal device; The third group of identification information is used to indicate at least one of the C groups supported by each carrier in the at least one carrier, and C is a positive integer; the at least one target group includes the first group in the at least one carrier The three groups of identification information are for at least one group indicated by each carrier.

In other words, the at least one target group may be indicated in two dimensions through the first carrier identification information and the third group identification information.

For example, assuming that the terminal device can support M carriers and each carrier supports up to N groups, the first signaling can include at most (M+1)*N bits of information, which is used to indicate which groups on which carriers are triggered. That is, an M-bit bitmap indicates carrier information, and each carrier corresponds to an N-bit bitmap to indicate group information. That is, the number of groups that can be triggered by one first signaling DCI is mostly M*N. Further, the first signaling may also include NFI and T-DAI information.

Further, the method 200 may further include:

The terminal device cascades the feedback information corresponding to at least one group indicated by each carrier of the third group of identification information in the at least one carrier to obtain the feedback information codebook.

In other words, one DCI (that is, the first signaling) can trigger the terminal to transmit groups in multiple carriers. The one DCI may include number information of the multiple carriers (that is, the first carrier identification information) and group number information in the carrier (that is, the third group identification information). At this time, the feedback information can be mapped to the ACK/NACK information in the order of the carrier numbers of the triggered carriers, each carrier can be further mapped in the order of the triggered group numbers, and each group can be further mapped in the ascending order of DAI.

Taking Figure 7 as an example, the DCI for scheduling physical channel transmission indicates carrier 0 and group 0, carrier 2 and

group

0 and 1, then the terminal device can feed back in the PUCCH that group 0 on carrier 0 and

group

0 and 1 on carrier 2 correspond to ACK/NACK information, namely {b _{cc0, group0, dai0} , b _{cc0, group0, dai1} , b _{cc2, group0, dai0} , b _{cc2, group0, dai1} , b _{cc2, group1, dai0} }, where b _{cci, groupj, daik} is the ACK/NACK information corresponding to the physical channel of C-DAI=k in group j on carrier i.

Through the first carrier identification information and the third group of identification information, it is possible to trigger the terminal equipment to feedback the feedback information of the downlink channel in units of at least one group corresponding to one carrier, instead of triggering the terminal equipment to feedback in units of multiple carriers The feedback information of the downlink channel avoids the problem of a large amount of redundant information in the feedback information caused by the failure of the LBT, and can improve the feedback efficiency.

Moreover, the DCI signaling overhead for scheduling the physical channel is small, which can reduce the signaling overhead.

In addition, network equipment and terminal equipment will not have any ambiguity in understanding the feedback information carried in the PUCCH.

As another example, the first signaling includes a second carrier identification and a fourth group of identification information; the second carrier identification is used to indicate other carriers except the first carrier among the multiple carriers supported by the terminal The fourth group identifier is used to indicate at least one of the D groups supported in the first carrier, and D is a positive integer; the first carrier is the one that transmits the first signaling A carrier, or the first carrier is a carrier that transmits a physical channel scheduled by the first signaling; the at least one target group includes at least one group indicated by the fourth group identifier in the first carrier.

In other words, the at least one target group can be indicated by the second carrier identifier and the fourth carrier identifier.

Further, the method 200 may further include:

The terminal device cascades the full HARQ process feedback information corresponding to the at least one carrier and the feedback information corresponding to the at least one target group to obtain a feedback information codebook.

For example, for the feedback information corresponding to the at least one target group, the method 200 may further include:

For the feedback information corresponding to the downlink channels in the same group, the terminal equipment cascades the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or, for the same carrier For the feedback information corresponding to the group, the terminal device cascades the feedback information corresponding to the group in the same carrier based on the sequence of the group identification.

For another example, for the full HARQ process feedback information corresponding to the at least one carrier, the method 200 may further include:

For all HARQ process feedback information corresponding to the same carrier, the terminal device cascades the feedback information corresponding to all HARQ processes in the same carrier based on the sequence of HARQ process numbers; and/or, for the feedback information corresponding to different carriers, The terminal device cascades the feedback information corresponding to the different carriers based on the sequence of the identification information of the carriers.

Wherein, the full HARQ process feedback information corresponding to the at least one carrier in the feedback information codebook is before or after the feedback information corresponding to the at least one target group.

For example, one DCI can trigger the terminal to transmit the ACK/NACK information corresponding to the group in the carrier, and further can trigger the feedback of the full HARQ process feedback of other carriers. Specifically, the first signaling includes group indication information in the carrier (that is, the fourth group identification information) and other carrier number information. For other carriers, the terminal device can send ACK/NACK information corresponding to all HARQ processes supported on the carrier. The feedback information can be mapped in the following order. First, map the ACK/NACK information corresponding to the carrier group. Specifically, map the ACK/NACK information according to the group number. For the ACK/NACK information in each group, map the ACK in the ascending order of DAI /NACK information; Then, the ACK/NACK information can be mapped in the order of the carrier numbers of other carriers.

Taking Figure 8 as an example, the first signaling sent on carrier 2 triggers group 1 of this carrier, and

carriers

0 and 1, then the feedback information that the terminal device can send in the PUCCH is {b _{cc2, group1, dai0} , b _{cc0, HARQ0} , b _{cc0, HARQ1} , ..., b _{cc0, HARQ7} , b _{cc1, HARQ0} , b _{cc1, HARQ1} , ..., b _{cc1, HARQ7} }, where b _{cc2, group1, dai0} are in group 1 on carrier 2 The ACK/NACK information corresponding to the physical channel with C-DAI=0, b _{cci and} _HARQj represent the ACK/NACK feedback information corresponding to the HARQ process j on the carrier i.

Through the second carrier information and the fourth group of identification information, it is possible to trigger the terminal equipment to feed back downlink channel feedback information in units of at least one group corresponding to one carrier, instead of triggering the terminal equipment to feed back downlink information in units of multiple carriers The feedback information of the channel avoids the problem of redundant information corresponding to the carrier in the feedback information due to the LBT of a certain carrier, and can improve the feedback efficiency.

Moreover, the DCI signaling overhead for scheduling the physical channel is small, that is, the first signaling overhead is small. If the first signaling includes NFI and T-DAI information, the first signaling only needs to include the NFI and T-DAI corresponding to the group within the carrier, and the overhead is also small.

The preferred embodiments of the present application are described in detail above with reference to the accompanying drawings. However, the present application is not limited to the specific details in the above-mentioned embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application. These simple variants all belong to the protection scope of this application.

For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described in this application. Explain separately.

For another example, various different implementations of this application can also be combined arbitrarily, as long as they do not violate the idea of this application, they should also be regarded as the content disclosed in this application.

It should be understood that in the various method embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not be implemented in this application The implementation process of the example constitutes any limitation.

The method embodiments of the present application are described in detail above in conjunction with FIGS. 1 to 8, and the device embodiments of the present application are described in detail below in conjunction with FIGS. 9 to 12.

FIG. 9 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application.

Referring to FIG. 9, the terminal device 300 may include:

The receiving unit 310 is configured to receive first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, where the at least one target group corresponds to the same target group The downlink channels belong to the same carrier;

The sending unit 320 is configured to send a feedback information codebook, where the feedback information codebook includes feedback information corresponding to the at least one target group.

In some embodiments of the present application, the terminal device further includes:

The processing unit is configured to cascade the feedback information corresponding to the at least one target group to obtain the feedback information codebook.

In some embodiments of the present application, the first signaling includes a second group of identification information, and the second group of identification information is used to indicate at least one of the B groups supported by the terminal device in one carrier A group, B is a positive integer, and the at least one target group includes at least one group indicated by the second group identification information in the first carrier.

In some embodiments of the present application, the first carrier is a carrier that transmits the first signaling, or the first carrier is a carrier that transmits a physical channel scheduled by the first signaling, or the first carrier A carrier is the carrier indicated by the carrier identification information in the first signaling.

In some embodiments of the present application, the receiving unit 310 is specifically configured to:

Receive multiple signaling;

The multiple signalings are respectively used to instruct the terminal device to transmit feedback information corresponding to multiple groups, and the multiple signalings include the first signaling.

In some embodiments of the present application, the resources of the feedback information corresponding to the multiple groups overlap; the terminal device further includes:

The processing unit is configured to cascade the feedback information corresponding to the multiple groups to obtain the feedback information codebook.

In some embodiments of the present application, the processing unit is specifically configured to:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, based on the sequence of group identification, cascade the feedback information corresponding to the groups in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.

In some embodiments of the present application, the first signaling includes first carrier identification information and a third group of identification information; the first carrier identification information is used to indicate at least one of the multiple carriers supported by the terminal device Carrier; the third group of identification information is used to indicate at least one of the C groups supported by each carrier in the at least one carrier, and C is a positive integer; the at least one target group includes the at least one carrier The third group of identification information is for at least one group indicated by each carrier.

The processing unit is configured to cascade the feedback information corresponding to at least one group indicated by each carrier of the third group of identification information in the at least one carrier to obtain the feedback information codebook.

In some embodiments of the present application, the first signaling includes a second carrier identification and a fourth group of identification information; the second carrier identification is used to indicate that among the multiple carriers supported by the terminal, except for the first carrier At least one of the other carriers; the fourth group identifier is used to indicate at least one of the D groups supported in the first carrier, and D is a positive integer; the first carrier is for transmitting the first carrier A signaling carrier, or the first carrier is a carrier that transmits the physical channel scheduled by the first signaling; the at least one target group includes at least one indicated by the fourth group identifier in the first carrier A group.

The processing unit is configured to cascade the full HARQ process feedback information corresponding to the at least one carrier and the feedback information corresponding to the at least one target group to obtain a feedback information codebook.

In some embodiments of the present application, for the feedback information corresponding to the at least one target group, the processing unit is specifically configured to:

For the feedback information corresponding to the groups in the same carrier, the feedback information corresponding to the groups in the same carrier is cascaded based on the sequence of the group identification.

In some embodiments of the present application, for the full HARQ process feedback information corresponding to the at least one carrier, the processing unit is specifically configured to:

For all HARQ process feedback information corresponding to the same carrier, based on the sequence of HARQ process numbers, cascade the feedback information corresponding to all HARQ processes in the same carrier; and/or

In some embodiments of the present application, the full HARQ process feedback information corresponding to the at least one carrier in the feedback information codebook is before or after the feedback information corresponding to the at least one target group.

In some embodiments of the present application, the receiving unit 310 is specifically configured to

Receive downlink control information DCI, where the DCI includes the first signaling.

In some embodiments of the present application, the feedback information includes acknowledged/non-acknowledged ACK/NACK feedback information.

In some embodiments of the present application, the downlink channel includes a physical downlink control channel PDCCH and/or a physical downlink shared channel PDSCH.

In some embodiments of the present application, the terminal device is applicable to a new air interface unlicensed NR-U communication network.

It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, the terminal device 300 shown in FIG. 9 may correspond to the corresponding main body in the method 200 that executes the embodiment of the present application, and the foregoing and other operations and/or functions of the various units in the terminal device 300 are respectively intended to realize For the sake of brevity, the corresponding process in each method of the method will not be repeated here.

FIG. 10 is a schematic block diagram of a network device 400 according to an embodiment of the present application.

Referring to FIG. 10, the network device 400 may include:

The sending unit 410 is configured to send first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, wherein the downlink channel corresponding to the same target group in the at least one target group Belong to the same carrier;

The receiving unit 420 is configured to receive a feedback information codebook, where the feedback information codebook includes feedback information corresponding to the at least one target group.

In some embodiments of the present application, the feedback information codebook includes a codebook obtained by concatenating the feedback information corresponding to the at least one target group.

In some embodiments of the present application, the sending unit 410 is specifically configured to:

Send multiple signaling;

In some embodiments of the present application, the resources of the feedback information corresponding to the multiple groups overlap; the feedback information codebook includes a codebook obtained by concatenating the feedback information corresponding to the multiple groups.

In some embodiments of the present application, the feedback information codebook includes a codebook obtained in the following manner:

For the feedback information corresponding to the downlink channels in the same group, the feedback information corresponding to the downlink channels in the same group is cascaded based on the order of the downlink allocation index DAI of the downlink channel; and/or

In some embodiments of the present application, the feedback information codebook includes a codebook obtained by concatenating the feedback information corresponding to at least one group indicated by each carrier of the third group of identification information in the at least one carrier .

In some embodiments of the present application, the feedback information codebook includes a codebook obtained by concatenating the full HARQ process feedback information corresponding to the at least one carrier and the feedback information corresponding to the at least one target group.

In some embodiments of the present application, the feedback information corresponding to the at least one target group includes feedback information obtained in the following manner:

In some embodiments of the present application, the full HARQ process feedback information corresponding to the at least one carrier includes feedback information obtained in the following manner:

Send downlink control information DCI, where the DCI includes the first signaling.

In some embodiments of the present application, the network device is applicable to a new air interface unlicensed NR-U communication network.

It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, the network device 400 shown in FIG. 10 may correspond to a corresponding subject in the method 200 that executes the embodiment of the present application, and the foregoing and other operations and/or functions of the various units in the network device 400 are respectively intended to implement For the sake of brevity, the corresponding process in each method of the method will not be repeated here.

The communication device of the embodiment of the present application is described above from the perspective of functional modules in conjunction with the accompanying drawings. It should be understood that the functional module can be implemented in the form of hardware, can also be implemented in the form of software instructions, and can also be implemented in a combination of hardware and software modules.

Specifically, the steps of the method embodiments in the embodiments of the present application can be completed by hardware integrated logic circuits in the processor and/or instructions in the form of software. In combination with the steps of the methods disclosed in the embodiments of the present application, the steps can be directly embodied as hardware The execution of the decoding processor is completed, or the execution is completed by a combination of hardware and software modules in the decoding processor.

Optionally, the software module may be located in a mature storage medium in the field, such as a random access memory, a flash memory, a read only memory, a programmable read only memory, an electrically erasable programmable memory, and a register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the foregoing method embodiment in combination with its hardware.

For example, the processing unit and the communication unit referred to above may be implemented by a processor and a transceiver, respectively.

FIG. 11 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application.

Referring to FIG. 11, the communication device 500 may include a processor 510.

Wherein, the processor 510 may call and run a computer program from the memory to implement the method in the embodiment of the present application.

Please continue to refer to FIG. 11, the communication device 500 may further include a memory 520.

Wherein, the memory 520 may be used to store instruction information, and may also be used to store codes and instructions executed by the processor 510. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application. The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Please continue to refer to FIG. 11, the communication device 500 may further include a transceiver 530.

The processor 510 may control the transceiver 530 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices. The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

It should be understood that the various components in the communication device 500 are connected by a bus system, where in addition to a data bus, the bus system also includes a power bus, a control bus, and a status signal bus.

It should also be understood that the communication device 500 may be the terminal device of the embodiment of the application, and the communication device 500 may implement the corresponding process implemented by the terminal device in each method of the embodiment of the application, that is, the communication device 500 of the embodiment of the application The communication device 500 may correspond to the terminal device 300 in the embodiment of the present application, and may correspond to a corresponding subject in executing the method 200 according to the embodiment of the present application. For brevity, details are not described herein again. Similarly, the communication device 500 may be a network device in an embodiment of the present application, and the communication device 500 may implement corresponding processes implemented by the network device in each method in the embodiments of the present application. That is to say, the communication device 500 in the embodiment of the present application may correspond to the network device 400 in the embodiment of the present application, and may correspond to the corresponding subject in executing the method 200 according to the embodiment of the present application. For the sake of brevity, it will not be omitted here. Go into details.

In addition, an embodiment of the present application also provides a chip.

For example, the chip may be an integrated circuit chip with signal processing capability, and can implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The chip may also be called a system-level chip, a system-on-chip, a system-on-a-chip, or a system-on-chip. Optionally, the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.

FIG. 12 is a schematic structural diagram of a chip 600 according to an embodiment of the present application.

Please refer to FIG. 12, the chip 600 includes a processor 610.

The processor 610 may call and run a computer program from the memory to implement the method in the embodiment of the present application.

Please continue to refer to FIG. 12, the chip 600 may further include a memory 620.

The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application. The memory 620 may be used to store instruction information, and may also be used to store codes and instructions executed by the processor 610. The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Please continue to refer to FIG. 12, the chip 600 may further include an input interface 630.

The processor 610 can control the input interface 630 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Please continue to refer to FIG. 12, the chip 600 may further include an output interface 640.

The processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

It should be understood that the chip 600 can be applied to the network equipment in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, and can also implement the various methods of the embodiments of the present application. For the sake of brevity, the corresponding process implemented by the terminal device in the process will not be repeated here.

It should also be understood that the various components in the chip 600 are connected by a bus system, where in addition to the data bus, the bus system also includes a power bus, a control bus, and a status signal bus.

The processor may include, but is not limited to:

General-purpose processor, digital signal processor (Digital Signal Processor, DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates Or transistor logic devices, discrete hardware components, etc.

The processor may be used to implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

The storage includes but is not limited to:

Volatile memory and/or non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (synch link DRAM), SLDRAM) and Direct Rambus RAM (DR RAM).

It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

The embodiments of the present application also provide a computer-readable storage medium for storing computer programs. The computer-readable storage medium stores one or more programs, and the one or more programs include instructions. When the instructions are executed by a portable electronic device that includes multiple application programs, the portable electronic device can execute the implementation shown in method 200. Example method.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application For the sake of brevity, I won’t repeat it here.

The embodiments of the present application also provide a computer program product, including a computer program.

Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it will not be omitted here. Go into details.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, in order to It's concise, so I won't repeat it here.

The embodiment of the present application also provides a computer program. When the computer program is executed by a computer, the computer can execute the method of the embodiment shown in method 200.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

In addition, an embodiment of the present application also provides a communication system. The communication system may include the aforementioned terminal equipment and network equipment to form the communication system 100 as shown in FIG. 1. For brevity, details are not described herein again. It should be noted that the term "system" in this article can also be referred to as "network management architecture" or "network system".

It should also be understood that the terms used in the embodiments of the present application and the appended claims are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application.

For example, the singular forms of "a", "said", "above" and "the" used in the embodiments of this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other forms. meaning.

Those skilled in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the embodiments of the present application.

If implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art or the part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium. , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

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

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways.

For example, the division of units or modules or components in the device embodiments described above is only a logical function division, and there may be other divisions in actual implementation. For example, multiple units or modules or components can be combined or integrated. To another system, or some units or modules or components can be ignored or not executed.

For another example, the aforementioned units/modules/components described as separate/display components may or may not be physically separated, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units/modules/components may be selected according to actual needs to achieve the objectives of the embodiments of the present application.

Finally, it should be noted that the mutual coupling or direct coupling or communication connection shown or discussed above may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms. .

The above content is only the specific implementation manners of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any person skilled in the art can easily think of within the technical scope disclosed in the embodiments of the present application. The change or replacement shall be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

A method for sending feedback information, characterized in that it includes:

The terminal device receives first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, wherein the downlink channels corresponding to the same target group in the at least one target group belong to the same Carrier

The terminal sends a feedback information codebook, and the feedback information codebook includes feedback information corresponding to the at least one target group.
The method according to claim 1, wherein the first signaling includes a first group of identification information, and the first group of identification information is used to indicate at least one of the A groups supported by the terminal device, A is a positive integer; the at least one target group includes at least one group indicated by the first group of identification information.
The method according to claim 2, wherein the method further comprises:

The terminal device cascades the feedback information corresponding to the at least one target group to obtain the feedback information codebook.
The method according to claim 1, wherein the first signaling includes a second group of identification information, and the second group of identification information is used to indicate the B groups supported by the terminal device in one carrier B is a positive integer, and the at least one target group includes at least one group indicated by the second group identification information in the first carrier.
The method according to claim 4, wherein the first carrier is a carrier that transmits the first signaling, or the first carrier is a carrier that transmits a physical channel scheduled by the first signaling, Or the first carrier is the carrier indicated by the carrier identification information in the first signaling.
The method according to claim 4 or 5, wherein the terminal device receiving the first signaling comprises:

The terminal device receives multiple signalings;

The multiple signalings are respectively used to instruct the terminal device to transmit feedback information corresponding to multiple groups, and the multiple signalings include the first signaling.
The method according to claim 6, wherein the resources of the feedback information corresponding to the multiple groups overlap; the method further comprises:

The terminal device cascades the feedback information corresponding to the multiple groups to obtain the feedback information codebook.
The method according to claim 7, wherein the terminal device cascading the feedback information corresponding to the multiple groups comprises:

For the feedback information corresponding to the downlink channels in the same group, the terminal device cascades the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, the terminal device cascades the feedback information corresponding to the groups in the same carrier based on the sequence of the group identification; and/or

For the feedback information corresponding to different carriers, the terminal device cascades the feedback information corresponding to the different carriers based on the sequence of the identification information of the carriers.
The method according to claim 1, wherein the first signaling includes first carrier identification information and a third group of identification information; the first carrier identification information is used to indicate multiple carriers supported by the terminal device The third group identification information is used to indicate at least one of the C groups supported by each carrier in the at least one carrier, and C is a positive integer; the at least one target group includes the The third group of identification information in at least one carrier is for at least one group indicated by each carrier.
The method according to claim 9, wherein the method further comprises:

The terminal device cascades the feedback information corresponding to at least one group indicated by each carrier of the third group of identification information in the at least one carrier to obtain the feedback information codebook.
The method according to claim 10, wherein the feedback information corresponding to at least one group indicated by each carrier in the third group of identification information in the cascaded at least one carrier comprises:

For the feedback information corresponding to the downlink channels in the same group, the terminal device cascades the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, the terminal device cascades the feedback information corresponding to the groups in the same carrier based on the sequence of the group identification; and/or

For the feedback information corresponding to different carriers, the terminal device cascades the feedback information corresponding to the different carriers based on the sequence of the identification information of the carriers.
The method according to claim 1, wherein the first signaling includes a second carrier identification and a fourth group of identification information; the second carrier identification is used to indicate that the terminal supports the multiple carriers except for At least one of the other carriers except the first carrier; the fourth group identifier is used to indicate at least one of the D groups supported in the first carrier, and D is a positive integer; the first carrier is The carrier transmitting the first signaling, or the first carrier is the carrier transmitting the physical channel scheduled by the first signaling; the at least one target group includes the fourth group in the first carrier Identifies at least one group indicated.
The method according to claim 12, wherein the method further comprises:

The terminal device cascades the full HARQ process feedback information corresponding to the at least one carrier and the feedback information corresponding to the at least one target group to obtain a feedback information codebook.
The method according to claim 13, wherein for the feedback information corresponding to the at least one target group, the method further comprises:

For the feedback information corresponding to the downlink channels in the same group, the terminal device cascades the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, the terminal device cascades the feedback information corresponding to the groups in the same carrier based on the sequence of the group identification.
The method according to claim 13, characterized in that, for the full HARQ process feedback information corresponding to the at least one carrier, the method further comprises:

For all HARQ process feedback information corresponding to the same carrier, the terminal device cascades the feedback information corresponding to all HARQ processes in the same carrier based on the sequence of HARQ process numbers; and/or

For the feedback information corresponding to different carriers, the terminal device cascades the feedback information corresponding to the different carriers based on the sequence of the identification information of the carriers.
The method according to claim 13, wherein the full HARQ process feedback information corresponding to the at least one carrier in the feedback information codebook is before or after the feedback information corresponding to the at least one target group.
The method according to any one of claims 1 to 16, wherein the terminal device receiving the first signaling comprises:

The terminal device receives downlink control information DCI, where the DCI includes the first signaling.
The method according to any one of claims 1 to 17, wherein the feedback information includes acknowledged/non-acknowledged ACK/NACK feedback information.
The method according to any one of claims 1 to 18, wherein the downlink channel comprises a physical downlink control channel PDCCH and/or a physical downlink shared channel PDSCH.
The method according to any one of claims 1 to 19, wherein the method is applicable to a new air interface unlicensed NR-U communication network.
A method for receiving feedback information, characterized in that it comprises:

The network device sends first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, where the downlink channels corresponding to the same target group in the at least one target group belong to the same carrier;

The network device receives a feedback information codebook, and the feedback information codebook includes feedback information corresponding to the at least one target group.
The method according to claim 21, wherein the first signaling includes a first group of identification information, and the first group of identification information is used to indicate at least one of the A groups supported by the terminal device, A is a positive integer; the at least one target group includes at least one group indicated by the first group of identification information.
The method according to claim 22, wherein the feedback information codebook comprises a codebook obtained by concatenating the feedback information corresponding to the at least one target group.
The method according to claim 21, wherein the first signaling includes a second group of identification information, and the second group of identification information is used to indicate the B groups supported by the terminal device in one carrier B is a positive integer, and the at least one target group includes at least one group indicated by the second group identification information in the first carrier.
The method according to claim 24, wherein the first carrier is a carrier that transmits the first signaling, or the first carrier is a carrier that transmits a physical channel scheduled by the first signaling, Or the first carrier is the carrier indicated by the carrier identification information in the first signaling.
The method according to claim 24 or 25, wherein the sending of the first signaling by the network device comprises:

The network device sends multiple signalings;

The multiple signalings are respectively used to instruct the terminal device to transmit feedback information corresponding to multiple groups, and the multiple signalings include the first signaling.
The method according to claim 26, wherein the resources of the feedback information corresponding to the multiple groups overlap; the feedback information codebook includes a codebook obtained by concatenating the feedback information corresponding to the multiple groups.
The method according to claim 27, wherein the feedback information codebook comprises a codebook obtained in the following manner:

For the feedback information corresponding to the downlink channels in the same group, the feedback information corresponding to the downlink channels in the same group is cascaded based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, based on the sequence of group identification, cascade the feedback information corresponding to the groups in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The method according to claim 21, wherein the first signaling includes first carrier identification information and a third group of identification information; the first carrier identification information is used to indicate multiple carriers supported by the terminal device The third group identification information is used to indicate at least one of the C groups supported by each carrier in the at least one carrier, and C is a positive integer; the at least one target group includes the The third group of identification information in at least one carrier is for at least one group indicated by each carrier.
The method according to claim 29, wherein the feedback information codebook includes the feedback information corresponding to the at least one group indicated by each carrier after concatenating the third group of identification information in the at least one carrier; The obtained codebook.
The method according to claim 30, wherein the feedback information codebook comprises a codebook obtained in the following manner:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, based on the sequence of group identification, cascade the feedback information corresponding to the groups in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The method according to claim 21, wherein the first signaling includes a second carrier identification and a fourth group of identification information; the second carrier identification is used to indicate that the terminal supports the multiple carriers except for At least one of the other carriers except the first carrier; the fourth group identifier is used to indicate at least one of the D groups supported in the first carrier, and D is a positive integer; the first carrier is The carrier transmitting the first signaling, or the first carrier is the carrier transmitting the physical channel scheduled by the first signaling; the at least one target group includes the fourth group in the first carrier Identifies at least one group indicated.
The method according to claim 32, wherein the feedback information codebook comprises a codebook obtained by concatenating the full HARQ process feedback information corresponding to the at least one carrier and the feedback information corresponding to the at least one target group .
The method according to claim 33, wherein the feedback information corresponding to the at least one target group comprises feedback information obtained in the following manner:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, the feedback information corresponding to the groups in the same carrier is cascaded based on the sequence of the group identification.
The method according to claim 33, wherein the full HARQ process feedback information corresponding to the at least one carrier comprises feedback information obtained in the following manner:

For all HARQ process feedback information corresponding to the same carrier, based on the sequence of HARQ process numbers, cascade the feedback information corresponding to all HARQ processes in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The method according to claim 33, wherein the full HARQ process feedback information corresponding to the at least one carrier in the feedback information codebook is before or after the feedback information corresponding to the at least one target group.
The method according to any one of claims 21 to 36, wherein the sending of the first signaling by the network device comprises:

The network device sends downlink control information DCI, where the DCI includes the first signaling.
The method according to any one of claims 21 to 37, wherein the feedback information includes acknowledged/non-acknowledged ACK/NACK feedback information.
The method according to any one of claims 21 to 38, wherein the downlink channel comprises a physical downlink control channel PDCCH and/or a physical downlink shared channel PDSCH.
The method according to any one of claims 21 to 39, wherein the method is applicable to a new air interface unlicensed NR-U communication network.
A terminal device, characterized in that it comprises:

The receiving unit is configured to receive first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, where the downlink corresponding to the same target group in the at least one target group The channels belong to the same carrier;

The sending unit is configured to send a feedback information codebook, where the feedback information codebook includes feedback information corresponding to the at least one target group.
The terminal device according to claim 41, wherein the first signaling includes first group identification information, and the first group identification information is used to indicate at least one of the A groups supported by the terminal device , A is a positive integer; the at least one target group includes at least one group indicated by the first group of identification information.
The terminal device according to claim 42, wherein the terminal device further comprises:

The processing unit is configured to cascade the feedback information corresponding to the at least one target group to obtain the feedback information codebook.
The terminal device according to claim 41, wherein the first signaling includes a second group of identification information, and the second group of identification information is used to indicate the B number of items supported by the terminal device in one carrier. At least one group in the group, B is a positive integer, and the at least one target group includes at least one group indicated by the second group identification information in the first carrier.
The terminal device according to claim 44, wherein the first carrier is a carrier that transmits the first signaling, or the first carrier is a carrier that transmits a physical channel scheduled by the first signaling , Or the first carrier is the carrier indicated by the carrier identification information in the first signaling.
The terminal device according to claim 44 or 45, wherein the receiving unit is specifically configured to:

Receive multiple signaling;

The multiple signalings are respectively used to instruct the terminal device to transmit feedback information corresponding to multiple groups, and the multiple signalings include the first signaling.
The terminal device according to claim 46, wherein the resources of the feedback information corresponding to the multiple groups overlap; and the terminal device further comprises:

The processing unit is configured to cascade the feedback information corresponding to the multiple groups to obtain the feedback information codebook.
The terminal device according to claim 47, wherein the processing unit is specifically configured to:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, based on the sequence of group identification, cascade the feedback information corresponding to the groups in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The terminal device according to claim 41, wherein the first signaling includes first carrier identification information and a third group of identification information; the first carrier identification information is used to indicate a plurality of carrier identification information supported by the terminal device At least one of the carriers; the third group identification information is used to indicate at least one of the C groups supported by each carrier in the at least one carrier, and C is a positive integer; the at least one target group includes all The third group of identification information in the at least one carrier is for at least one group indicated by each carrier.
The terminal device according to claim 49, wherein the terminal device further comprises:

The processing unit is configured to cascade the feedback information corresponding to at least one group indicated by each carrier of the third group of identification information in the at least one carrier to obtain the feedback information codebook.
The terminal device according to claim 50, wherein the processing unit is specifically configured to:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, based on the sequence of group identification, cascade the feedback information corresponding to the groups in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The terminal device according to claim 41, wherein the first signaling includes a second carrier identification and a fourth group of identification information; the second carrier identification is used to indicate the number of carriers supported by the terminal At least one of the other carriers except the first carrier; the fourth group identifier is used to indicate at least one of the D groups supported in the first carrier, and D is a positive integer; the first carrier Is a carrier for transmitting the first signaling, or the first carrier is a carrier for transmitting a physical channel scheduled by the first signaling; the at least one target group includes the fourth in the first carrier At least one group indicated by the group ID.
The terminal device according to claim 52, wherein the terminal device further comprises:

The processing unit is configured to cascade the full HARQ process feedback information corresponding to the at least one carrier and the feedback information corresponding to the at least one target group to obtain a feedback information codebook.
The terminal device according to claim 53, wherein, for the feedback information corresponding to the at least one target group, the processing unit is specifically configured to:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, the feedback information corresponding to the groups in the same carrier is cascaded based on the sequence of the group identification.
The terminal device according to claim 53, wherein, for the full HARQ process feedback information corresponding to the at least one carrier, the processing unit is specifically configured to:

For all HARQ process feedback information corresponding to the same carrier, based on the sequence of HARQ process numbers, cascade the feedback information corresponding to all HARQ processes in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The terminal device according to claim 53, wherein the full HARQ process feedback information corresponding to the at least one carrier in the feedback information codebook is before or after the feedback information corresponding to the at least one target group.
The terminal device according to any one of claims 41 to 56, wherein the receiving unit is specifically configured to

Receive downlink control information DCI, where the DCI includes the first signaling.
The terminal device according to any one of claims 41 to 57, wherein the feedback information includes acknowledged/non-acknowledged ACK/NACK feedback information.
The terminal device according to any one of claims 41 to 58, wherein the downlink channel comprises a physical downlink control channel PDCCH and/or a physical downlink shared channel PDSCH.
The terminal device according to any one of claims 41 to 59, wherein the terminal device is suitable for a new air interface unlicensed NR-U communication network.
A network device, characterized in that it comprises:

The sending unit is configured to send first signaling, where the first signaling is used to instruct the terminal device to transmit feedback information corresponding to at least one target group, wherein the downlink channels corresponding to the same target group in the at least one target group belong to The same carrier;

The receiving unit is configured to receive a feedback information codebook, where the feedback information codebook includes feedback information corresponding to the at least one target group.
The network device according to claim 61, wherein the first signaling includes a first group of identification information, and the first group of identification information is used to indicate at least one of the A groups supported by the terminal device , A is a positive integer; the at least one target group includes at least one group indicated by the first group of identification information.
The network device according to claim 62, wherein the feedback information codebook comprises a codebook obtained by concatenating the feedback information corresponding to the at least one target group.
The network device according to claim 61, wherein the first signaling includes a second set of identification information, and the second set of identification information is used to indicate the B number of identification information that the terminal device supports in one carrier At least one group in the group, B is a positive integer, and the at least one target group includes at least one group indicated by the second group identification information in the first carrier.
The network device according to claim 64, wherein the first carrier is a carrier that transmits the first signaling, or the first carrier is a carrier that transmits a physical channel scheduled by the first signaling , Or the first carrier is the carrier indicated by the carrier identification information in the first signaling.
The network device according to claim 64 or 65, wherein the sending unit is specifically configured to:

Send multiple signaling;

The multiple signalings are respectively used to instruct the terminal device to transmit feedback information corresponding to multiple groups, and the multiple signalings include the first signaling.
The network device according to claim 66, wherein the resources of the feedback information corresponding to the multiple groups overlap; the feedback information codebook comprises a codebook obtained by concatenating the feedback information corresponding to the multiple groups .
The network device according to claim 67, wherein the feedback information codebook comprises a codebook obtained in the following manner:

For the feedback information corresponding to the downlink channels in the same group, the feedback information corresponding to the downlink channels in the same group is cascaded based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, based on the sequence of group identification, cascade the feedback information corresponding to the groups in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The network device according to claim 61, wherein the first signaling includes first carrier identification information and a third group of identification information; the first carrier identification information is used to indicate a plurality of At least one carrier in the carrier; the third group of identification information is used to indicate at least one of the C groups supported by each carrier in the at least one carrier, and C is a positive integer; the at least one target group includes all The third group of identification information in the at least one carrier is for at least one group indicated by each carrier.
The network device according to claim 69, wherein the feedback information codebook comprises feedback information corresponding to at least one group indicated by each carrier of the third group of identification information in the cascaded at least one carrier The codebook obtained afterwards.
The network device according to claim 70, wherein the feedback information codebook comprises a codebook obtained in the following manner:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, based on the sequence of group identification, cascade the feedback information corresponding to the groups in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The network device according to claim 61, wherein the first signaling includes a second carrier identifier and a fourth group of identification information; the second carrier identifier is used to indicate the multiple carriers supported by the terminal At least one carrier among other carriers except the first carrier; the fourth group identifier is used to indicate at least one group of the D groups supported in the first carrier, and D is a positive integer; the first carrier Is the carrier that transmits the first signaling, or the first carrier is the carrier that transmits the physical channel scheduled by the first signaling; the at least one target group includes the fourth in the first carrier At least one group indicated by the group ID.
The network device according to claim 72, wherein the feedback information codebook comprises a code obtained by concatenating the full HARQ process feedback information corresponding to the at least one carrier and the feedback information corresponding to the at least one target group this.
The network device according to claim 73, wherein the feedback information corresponding to the at least one target group comprises feedback information obtained in the following manner:

For the feedback information corresponding to the downlink channels in the same group, cascade the feedback information corresponding to the downlink channels in the same group based on the order of the downlink allocation index DAI of the downlink channel; and/or

For the feedback information corresponding to the groups in the same carrier, the feedback information corresponding to the groups in the same carrier is cascaded based on the sequence of the group identification.
The network device according to claim 73, wherein the full HARQ process feedback information corresponding to the at least one carrier comprises feedback information obtained in the following manner:

For all HARQ process feedback information corresponding to the same carrier, based on the sequence of HARQ process numbers, cascade the feedback information corresponding to all HARQ processes in the same carrier; and/or

For the feedback information corresponding to different carriers, the feedback information corresponding to the different carriers is cascaded based on the sequence of the identification information of the carriers.
The network device according to claim 73, wherein the full HARQ process feedback information corresponding to the at least one carrier in the feedback information codebook is before or after the feedback information corresponding to the at least one target group.
The network device according to any one of claims 61 to 76, wherein the sending unit is specifically configured to:

Send downlink control information DCI, where the DCI includes the first signaling.
The network device according to any one of claims 61 to 77, wherein the feedback information includes acknowledged/non-acknowledged ACK/NACK feedback information.
The network device according to any one of claims 61 to 78, wherein the downlink channel comprises a physical downlink control channel PDCCH and/or a physical downlink shared channel PDSCH.
The network device according to any one of claims 61 to 79, wherein the network device is suitable for a new air interface unlicensed NR-U communication network.
A terminal device, characterized in that it comprises:

A processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 20.
A network device, characterized in that it comprises:

A processor, a memory, and a transceiver, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 21 to 40.
A chip, characterized in that it comprises:

The processor is configured to call and run a computer program from the memory, so that the device installed with the chip executes the method according to any one of claims 1 to 20.
A chip, characterized in that it comprises:

The processor is configured to call and run a computer program from the memory, so that the device installed with the chip executes the method according to any one of claims 21 to 40.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 1 to 20.
A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 21 to 40.
A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 1 to 20.
A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 21 to 40.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 20.
A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 21 to 40.