CN115941130A

CN115941130A - Feedback method, related device and readable storage medium

Info

Publication number: CN115941130A
Application number: CN202110881896.9A
Authority: CN
Inventors: 曾超君; 王理惠
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2023-04-07

Abstract

The application discloses a feedback method, related equipment and a readable storage medium, and belongs to the technical field of communication. The feedback method comprises the following steps: under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to a terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request (HARQ-ACK), the terminal executes a first operation related to the first HARQ-ACK; the terminal sends target information according to the first operation, wherein the target information comprises at least one of the following items: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK; wherein the first operation comprises at least one of: determining a first PUCCH cell corresponding to the first HARQ-ACK; determining a first time domain feedback offset corresponding to the first HARQ-ACK; determining whether the first HARQ-ACK is multiplexed with a second HARQ-ACK, wherein the second HARQ-ACK is any HARQ-ACK except the first HARQ-ACK; determining a multiplexing operation between the first HARQ-ACK and a third HARQ-ACK, the third HARQ-ACK including at least one HARQ-ACK other than the first HARQ-ACK.

Description

Feedback method, related device and readable storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a feedback method, a related device, and a readable storage medium.

Background

In Ultra-Reliable and Low-delay Communications (URLLC), in order to shorten Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) feedback delay as much as possible, physical uplink control channel carrier switching (PUCCH carrier switching) is proposed, that is, carriers transmitted by PUCCH can be switched.

For PUCCH carrier switching, dynamic scheduling HARQ-ACK may be transmitted on a target PUCCH cell based on an indication in Downlink Control Information (DCI), thereby implementing switching of PUCCH cells to shorten HARQ-ACK feedback delay. However, for Semi-Persistent Scheduling (SPS) HARQ-ACK, since there is no corresponding DCI, a scheme corresponding to dynamic Scheduling HARQ-ACK cannot be used, and currently, there is no relevant solution for feedback of SPS HARQ-ACK.

Disclosure of Invention

The embodiment of the application provides a feedback method, related equipment and a readable storage medium, which can solve the problem of feedback of SPS HARQ-ACK.

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

under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to a terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the terminal executes a first operation related to a first HARQ-ACK, wherein the first HARQ-ACK is semi-persistent scheduling (SPS) HARQ-ACK;

the terminal sends target information according to the first operation, wherein the target information comprises at least one of the following items: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

determining a first time domain feedback offset corresponding to the first HARQ-ACK;

determining whether the first HARQ-ACK is multiplexed with a second HARQ-ACK, wherein the second HARQ-ACK is any HARQ-ACK except the first HARQ-ACK;

determining a multiplexing operation between the first HARQ-ACK and a third HARQ-ACK, the third HARQ-ACK including at least one HARQ-ACK other than the first HARQ-ACK.

In a second aspect, a feedback method is provided, including:

under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to a terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), network side equipment executes a second operation related to the first HARQ-ACK, wherein the first HARQ-ACK is semi-persistent scheduling (SPS) HARQ-ACK;

the network side equipment receives target information according to the second operation, wherein the target information comprises at least one of the following items: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

In a third aspect, a feedback apparatus is provided, the feedback apparatus comprising:

the terminal comprises a first execution module and a second execution module, wherein the first execution module is used for executing a first operation related to a first hybrid automatic repeat request acknowledgement (HARQ-ACK) under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to the terminal comprises at least two PUCCH cells which can be used for transmitting the HARQ-ACK, and the first HARQ-ACK is a semi-persistent scheduling (SPS) HARQ-ACK;

a sending module, configured to send target information according to the first operation, where the target information includes at least one of the following: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

In a fourth aspect, a feedback apparatus is provided, the feedback apparatus comprising:

a second execution module, configured to execute a second operation related to a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) when a first Physical Uplink Control Channel (PUCCH) cell group corresponding to a terminal includes at least two PUCCH cells available for transmitting the HARQ-ACK, where the first HARQ-ACK is a semi-persistent scheduling (SPS) HARQ-ACK;

a receiving module, configured to receive target information according to the second operation, where the target information includes at least one of the following: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.

In a sixth aspect, a network side device is provided, which comprises a processor, a memory and a program or instructions stored in the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the second aspect.

In a seventh aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to:

under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to a terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), executing a first operation related to the first HARQ-ACK, wherein the first HARQ-ACK is semi-persistent scheduling (SPS) HARQ-ACK;

the communication interface is to:

sending target information according to the first operation, wherein the target information comprises at least one of the following items: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

In an eighth aspect, a network-side device is provided, which includes a processor and a communication interface, where the processor is configured to:

under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to the terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), executing a second operation related to the first HARQ-ACK, wherein the first HARQ-ACK is semi-persistent scheduling (SPS) HARQ-ACK;

the communication interface is to:

receiving target information according to the second operation, wherein the target information comprises at least one of the following items: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

In a ninth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method of the first aspect or the steps of the method of the second aspect.

In a tenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the second aspect.

In an eleventh aspect, there is provided a computer program/program product stored on a non-transitory storage medium, the program/program product being executable by at least one processor to implement a method as described in the first aspect or to implement a method as described in the second aspect.

In an embodiment of the present application, the terminal may determine at least one of: a feedback PUCCH cell corresponding to SPS HARQ-ACK; a time domain feedback offset corresponding to SPS HARQ-ACK; whether SPS HARQ-ACK is multiplexed with other HARQ-ACK; and multiplexing the SPS HARQ-ACK and other HARQ-ACK, and sending the HARQ-ACK according to the determined content. Therefore, the feedback mechanism of the SPS HARQ-ACK is provided in the embodiment of the application, the feasibility of the SPS HARQ-ACK feedback is ensured, and the feedback time delay of the SPS HARQ-ACK can be shortened.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system provided by an embodiment of the present application;

fig. 2 is a flowchart of a feedback method provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of feedback provided by an embodiment of the present application;

fig. 4 is a second flowchart of a feedback method provided in the embodiment of the present application;

FIG. 5 is a block diagram of a feedback device according to an embodiment of the present disclosure;

fig. 6 is a second structural diagram of a feedback device according to an embodiment of the present application;

fig. 7 is a block diagram of a communication device provided in an embodiment of the present application;

fig. 8 is a structural diagram of a terminal provided in an embodiment of the present application;

fig. 9 is a structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) ^th Generation, 6G) communication system.

Fig. 1 is a schematic diagram of a wireless communication system provided in an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palm Computer, a netbook, a super Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (Wearable Device), a vehicle mounted Device (VUE), a pedestrian terminal (PUE), a smart home (a Device with wireless communication function, such as a refrigerator, a television, a washing machine, or furniture, etc.), and the Wearable Device includes: smart watch, smart bracelet, smart earphone, smart glasses, smart jewelry (smart bracelet, smart ring, smart necklace, smart anklet, etc.), smart wristband, smart garment, game console, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an enodeb, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home enodeb, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable term in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

For convenience of understanding, some contents related to the embodiments of the present application are described below:

1. SPS Physical Downlink Shared Channel (PDSCH) transmission and HARQ-ACK feedback thereof.

A New Radio (NR) introduces SPS PDSCH transmission. The SPS PDSCH transmission is: a PDSCH transmission initiated periodically after downlink SPS transmission is activated. The SPS PDSCH transmission has no corresponding DCI indication, and the transmission and the corresponding HARQ-ACK feedback are carried out based on a predefined mode.

For the NR Rel-15 downlink SPS transmission, the network side may ensure that, in a certain Physical Uplink Control Channel (PUCCH) cell group configured for the UE, at most only a single serving cell configures a single SPS configuration (SPS-Config) on a BandWidth activation Part (BWP), and a corresponding SPS PDSCH transmission interval is at least 10 milliseconds. For an SPS PDSCH transmission ending in slot n, the UE feeds back a HARQ-ACK corresponding to the SPS PDSCH transmission in slot n + k, where k is determined by a PDSCH-to-HARQ-timing-indicator field in the DCI activating/reactivating the SPS PDSCH transmission.

In Rel-16 URLLC, in order to shorten the transmission delay of traffic data as much as possible, the network side may configure multiple sets of SPS-configs that are active simultaneously for a single UE (at most 8 sets of BWPs for a single serving cell may be configured simultaneously), and the corresponding SPS PDSCH transmission interval may be shortened to a minimum of a single timeslot. Due to the increase of the number of SPS-Config and the reduction of the transmission period of SPS PDSCH, the situation that more than one SPS HARQ-ACK needs to be fed back in a single Slot/Sub-Slot of a certain PUCCH cell group is likely to occur, and the SPS HARQ-ACKs can be concatenated into a codebook for transmission.

2. PUCCH carrier switching (PUCCH carrier switching).

In the research of URLLC Rel-17, PUCCH carrier switching is proposed in order to shorten the HARQ-ACK feedback delay as much as possible, namely the carrier transmitted by PUCCH can be switched. The PUCCH carrier switching may be applicable to HARQ-ACK transmission, and may also be applicable to other Uplink Control Information (UCI) types. The application scenario of PUCCH carrier switching may include the following features:

the UE configures uplink Carrier Aggregation (CA), and has a plurality of serving cells in uplink;

time Division multiplexing (TDD) modes (patterns) between different (uplink) serving cells of the UE are complementary to each other, that is, uplink resources of each serving cell are interleaved in a Time domain, and by switching serving cells, a Time delay for acquiring the uplink resources can be shortened as much as possible.

Optionally, the application scenario of PUCCH carrier switching may include an Inter-band (Inter-band) scenario.

The PUCCH carrier switching may support two modes of switching based on DCI dynamic indication (alt.1) and semi-persistent switching based on Time domain pattern (alt.2c). That is, the carrier for PUCCH transmission may be dynamically switched based on DCI, or may be semi-continuously switched based on a time domain mode.

In the embodiment of the present application, it is considered that one cell corresponds to one active carrier, and thus, PUCCH carrier switching and PUCCH cell switching (PUCCH cell switching) may be equivalently replaced; the transmission carrier of HARQ-ACK can be understood as: and feeding back the PUCCH cell where the HARQ-ACK is positioned.

X for a certain HARQ-ACK can be understood as: x used or located for the HARQ-ACK transmission without multiplexing the HARQ-ACK with other HARQ-ACK, wherein X can be expressed as: PUCCH cell, time unit, and PUCCH resource. Such as:

a PUCCH cell corresponding to a HARQ-ACK may be understood as: and under the condition that the HARQ-ACK is not multiplexed with other HARQ-ACK, the PUCCH cell in which the HARQ-ACK is transmitted.

The time unit corresponding to a certain HARQ-ACK may be understood as: the time unit in which the HARQ-ACK transmission is located in the case that the HARQ-ACK is not multiplexed with other HARQ-ACKs.

A PUCCH resource corresponding to a certain HARQ-ACK is understood as: and under the condition that the HARQ-ACK is not multiplexed with other HARQ-ACK, transmitting PUCCH resources used by the HARQ-ACK or carrying the HARQ-ACK.

The unit of the time unit may be a Slot (Slot), a Sub-Slot (Sub-Slot), a Symbol (Symbol), and the like, which may be determined according to actual requirements, and this is not limited in this embodiment of the present application.

The time domain feedback offset may be represented by K1, but is not limited thereto. For convenience of understanding, the following examples are given by using K1 to represent the time domain feedback offset, but the expression of the time domain feedback offset is not limited thereto, such as: the time domain feedback offset may be represented as a time domain offset represented at a granularity of a certain time unit based on a certain reference time instant or starting time instant.

The embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

Referring to fig. 2, fig. 2 is a flowchart of a feedback method provided in an embodiment of the present application. The feedback method of fig. 2 may be performed by a terminal. As shown in fig. 2, the feedback method may include the steps of:

step 201, under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to a terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the terminal executes a first operation related to a first HARQ-ACK, wherein the first HARQ-ACK is semi-persistent scheduling (SPS) HARQ-ACK.

In a specific implementation, the first HARQ-ACK may be any SPS HARQ-ACK of the terminal. The first PUCCH cell group may be any PUCCH cell group corresponding to the terminal. The first PUCCH cell group comprises two or more PUCCH cells, so PUCCH cell switching can be carried out in the first PUCCH cell group aiming at the HARQ-ACK terminal, and the HARQ-ACK feedback time delay is shortened. In implementation, the PUCCH cell may be dynamically switched based on DCI, or may be semi-continuously switched based on a time domain mode, which may be specifically determined according to actual requirements, and this is not limited in this embodiment of the present application.

In an embodiment of the present application, the first operation may include at least one of:

1) Determining a first PUCCH cell corresponding to the first HARQ-ACK;

2) Determining a first time domain feedback offset corresponding to the first HARQ-ACK;

3) Determining whether the first HARQ-ACK is multiplexed with a second HARQ-ACK, wherein the second HARQ-ACK is any HARQ-ACK except the first HARQ-ACK;

4) Determining a multiplexing operation between the first HARQ-ACK and a third HARQ-ACK, the third HARQ-ACK including at least one HARQ-ACK other than the first HARQ-ACK.

In 1), the first PUCCH cell may be understood as: the PUCCH cell in which the first HARQ-ACK is transmitted on the condition that the first HARQ-ACK is not multiplexed with other HARQ-ACK. The first PUCCH cell may be any one of the first PUCCH cell groups.

In 2), the K1 th can be understood as: k1 for determining a time unit in which the first HARQ-ACK transmission is located, on a condition that the first HARQ-ACK is not multiplexed with other HARQ-ACKs.

In 3), the second HARQ-ACK may be a dynamically scheduled HARQ-ACK or an SPS HARQ-ACK. That is to say, the first HARQ-ACK may be multiplexed with other dynamically scheduled HARQ-ACKs or may be multiplexed with other SPS HARQ-ACKs, which may be determined according to practical situations, and is not limited in this embodiment. In a specific implementation, the terminal may perform the determining operation in 3) once or at least twice, it being understood that different determining operations are used to determine whether said first HARQ-ACK is multiplexed with different HARQ-ACKs.

The multiplexing of the first HARQ-ACK and the second HARQ-ACK may be understood as: and the first HARQ-ACK and the second HARQ-ACK are transmitted in a multiplexing mode, namely the first HARQ-ACK and the second HARQ-ACK are transmitted in the same time unit of the same PUCCH cell based on the same PUCCH resource. Optionally, the first HARQ-ACK and the second HARQ-ACK may be fused in a single HARQ-ACK bit sequence or HARQ-ACK codebook for transmission.

In 4), the third HARQ-ACK may include at least one of: dynamically scheduling HARQ-ACK; SPS HARQ-ACK.

The multiplexing operation may be used to determine at least one of:

the PUCCH cell corresponding to the multiplexed first HARQ-ACK and third HARQ-ACK;

the first HARQ-ACK and the third HARQ-ACK are multiplexed to form corresponding PUCCH resources;

and when the first HARQ-ACK and the third HARQ-ACK are multiplexed, feeding back a HARQ-ACK bit sequence or a feeding back HARQ-ACK codebook.

Step 202, the terminal sends target information according to the first operation, wherein the target information comprises at least one of the following items: the first HARQ-ACK; HARQ-ACK multiplexed with the first HARQ-ACK.

The HARQ-ACK multiplexed with the first HARQ-ACK may include: all or part of the HARQ-ACKs multiplexed with the first HARQ-ACK may be referred to the following related description, which is not described herein.

In a specific implementation, in an implementation, the target information may include only the first HARQ-ACK, and this implementation may be applied to any of the following scenarios: not multiplexing with other HARQ-ACK in the first HARQ-ACK; the first HARQ-ACK is multiplexed with other HARQ-ACKs.

In another implementation, the target information may include the first HARQ-ACK and a HARQ-ACK multiplexed with the first HARQ-ACK.

In yet another implementation, the target information may include only HARQ-ACKs multiplexed with the first HARQ-ACK.

The target information may be, but is not limited to, appearing as any one of: the first HARQ-ACK; the following target HARQ-ACK bit sequence; a first type codebook; the second type codebook described below.

It will be appreciated that the implementation of step 203 is related to the content of the first operation. Such as:

the terminal may transmit the first HARQ-ACK based on a first PUCCH resource in a first time unit of the first PUCCH cell without multiplexing the first HARQ-ACK with HARQ-ACK, where the first time unit is determined based on the first K1.

In the case that the first HARQ-ACK is multiplexed with other HARQ-ACKs, the terminal may transmit a target HARQ-ACK bit sequence or a target HARQ-ACK codebook based on the multiplexed corresponding PUCCH resource in a second time unit of the multiplexed corresponding PUCCH cell. It should be noted that the target HARQ-ACK bit sequence or the target HARQ-ACK codebook may or may not include the first HARQ-ACK, which is described in detail below and is not described herein.

It should be noted that the foregoing implementation is only an example, and specific reference may be made to the following description.

According to the feedback method, the terminal can determine at least one of the following items: a feedback PUCCH cell corresponding to SPS HARQ-ACK; a time domain feedback offset corresponding to SPS HARQ-ACK; whether SPS HARQ-ACK is multiplexed with other HARQ-ACK; and multiplexing the SPS HARQ-ACK and other HARQ-ACK, and sending the HARQ-ACK according to the determined content. Therefore, the feedback mechanism of the SPS HARQ-ACK is provided in the embodiment of the application, the feasibility of the SPS HARQ-ACK feedback is ensured, and the feedback time delay of the SPS HARQ-ACK can be shortened.

The first operation will be specifically described below.

For 1)

Optionally, the first PUCCH cell may satisfy any one of:

indicating by first Downlink Control Information (DCI), wherein the first DCI is used for activating or reactivating SPS Physical Downlink Shared Channel (PDSCH) transmission corresponding to the first HARQ-ACK;

determined by a first rule comprising: transmitting SPS HARQ-ACK through a first cell, the first cell being any one of: a master cell of the master cell group; a primary cell of the secondary cell group; and the PUCCH secondary cell.

In this optional embodiment, the first PUCCH cell may be determined in any one of the following manners.

First PUCCH cell determination method 1: the first PUCCH cell may be indicated by the first DCI.

In this way, the terminal may use the PUCCH cell indicated by the first DCI as the PUCCH cell corresponding to the subsequent SPS HARQ-ACK activated or reactivated by the first DCI.

Optionally, the PUCCH cell indicated by the first DCI may be a first cell, where the first cell is any one of the following: primary cells (PCell) of the Primary Cell group, primary cells (PSCell) of the Secondary Cell group; PUCCH Secondary Cell (SCell).

In a specific implementation, for different SPS configs, the PUCCH cells indicated by the first DCI may be the same or different, which may be determined specifically according to an actual situation, and this is not limited in this embodiment of the present application.

The first DCI is used to activate or reactivate SPS PDSCH transmission corresponding to the first HARQ-ACK, and therefore, the first DCI may also be referred to as an activation or reactivation DCI corresponding to the first HARQ-ACK.

It can be seen that, in this manner, the function of activating or reactivating the DCI corresponding to the SPS HARQ-ACK is similar to the function of scheduling the DCI corresponding to the dynamic scheduling HARQ-ACK, which is embodied in that the activating or reactivating DCI corresponding to the SPS HARQ-ACK may be used to indicate the PUCCH cell corresponding to the SPS HARQ-ACK.

First PUCCH cell determination method 2: the first PUCCH cell may be determined by the first rule.

In this way, the terminal may fix the SPS HARQ-ACK feedback on the first cell, so that the cell where the SPS HARQ-ACK feedback is located may be made explicit in any case.

In specific implementation, the first rule may be determined by protocol agreement, network side device configuration, or negotiation between the terminal and the network side device, which may be specifically determined according to actual situations, and this is not limited in this embodiment of the present application.

For 2)

Optionally, the first time domain feedback offset may satisfy any one of:

the first time domain feedback offset is determined based on a time domain feedback offset index indicated by first DCI and a first time domain feedback offset set, the first time domain feedback offset set is a time domain feedback offset set corresponding to a third HARQ-ACK, and the third HARQ-ACK is a HARQ-ACK corresponding to PDSCH transmission of a physical downlink shared channel scheduled by the first DCI;

the first time domain feedback offset is determined based on a time domain feedback offset index indicated by the first DCI and a second time domain feedback offset set, where the second time domain feedback offset set is a time domain feedback offset set corresponding to a first cell, and the first cell is any one of the following: a master cell of the master cell group; a primary cell of the secondary cell group; a PUCCH secondary cell;

the first time domain feedback offset is determined based on a high-level signaling, and the high-level signaling carries a time domain feedback offset or a time domain feedback offset index;

wherein the first DCI is used for activating or reactivating SPS PDSCH transmission corresponding to the first HARQ-ACK.

In this alternative embodiment, the first K1 may be determined in any one of the following ways.

K1 determination mode 1: the first K1 is determined based on a K1 index indicated by the first DCI and the first K1 set.

The first set of K1 may be understood as: and a K1set (K1 set) corresponding to the PUCCH cell corresponding to the third HARQ-ACK.

In this way, the terminal may determine K1 corresponding to the first K1 index in the first K1set as the first K1. It can be seen that, in this manner, K1 indicated by HARQ-ACK corresponding to PDSCH transmission scheduled by the first DCI may be applied to HARQ-ACK feedback of subsequent SPS PDSCH transmission activated or reactivated by the first DCI, that is, K1 corresponding to subsequent SPS PDSCH transmission activated or reactivated by the first DCI may be used to follow K1 indicated by PDSCH transmission scheduled by the first DCI.

It should be noted that the first K1 may or may not be in the K1set corresponding to the first cell.

It can be seen that, in this manner, there is a similarity between the function of activating or reactivating DCI corresponding to SPS HARQ-ACK and the function of scheduling DCI corresponding to dynamic scheduling HARQ-ACK, which is specifically indicated that the activating or reactivating DCI corresponding to SPS HARQ-ACK may be used to indicate K1 corresponding to SPS HARQ-ACK.

K1 determination mode 2: the first K1 is determined based on the K1 index indicated by the first DCI and the second K1 set.

In this manner, the terminal determines, as the first K1, K1 corresponding to the K1 index in the K1set corresponding to the first cell, using the K1 index indicated by the first DCI. In this way, the first K1 is in the K1set corresponding to the first cell, so that it can be ensured that the Type-1 HARQ-ACK codebook constructed for the first cell includes HARQ-ACK bits corresponding to SPS HARQ-ACK, the codebook construction process is simplified, and the complexity is reduced.

It should be noted that, in order to ensure that the K1 corresponding to the K1 index indicated by the first DCI can be found in the K1set corresponding to the first cell, optionally, the K1 index indicated by the first DCI may be avoided as an illegal value with respect to the K1set corresponding to the first cell. Such as: when the K1 index is numbered from 0, the size of the K1 index indicated by the first DCI may be smaller than the number of K1 included in the K1set corresponding to the first cell.

K1 determination mode 3: the first K1 is determined based on higher layer signaling.

In this manner, under the condition that the high layer signaling carries K1, the terminal may determine K1 carried by the high layer signaling as the first K1.

In a case that the high layer signaling carries a K1 index, the terminal may determine, as the first K1, a K1 corresponding to the K1 index in a K1set corresponding to the first cell. The difference between this case and the K1 determination mode 2 is that: the K1 index is obtained in different manners, in this case, the terminal obtains the K1 index from the higher layer signaling, and in the K1 determination manner 2, the terminal obtains the K1 index from the first DCI.

For 3)

First embodiment

Optionally, the determining whether the first HARQ-ACK is multiplexed with a second HARQ-ACK includes:

determining that the first HARQ-ACK is multiplexed with a second HARQ-ACK on the condition that a first condition is met;

wherein the first condition may include at least one of:

a first object corresponding to the first HARQ-ACK and a first object corresponding to the second HARQ-ACK have time domain overlapping, and the first object comprises at least one of the following items: time unit, PUCCH resource;

the first HARQ-ACK and the second HARQ-ACK correspond to the same PUCCH cell.

In this optional embodiment, the terminal may determine whether to multiplex the first HARQ-ACK and the second HARQ-ACK together for feedback according to the PUCCH cell, time unit and/or PUCCH resource corresponding to the first HARQ-ACK and the PUCCH cell, time unit and/or PUCCH resource corresponding to the second HARQ-ACK.

In specific implementation, under the condition that a first object corresponding to the first HARQ-ACK and a first object corresponding to the second HARQ-ACK have time domain overlapping and/or the first HARQ-ACK and the second HARQ-ACK correspond to the same PUCCH cell, the terminal can multiplex the first HARQ-ACK and the second HARQ-ACK together for feedback, so that on one hand, the transmission performance of the HARQ-ACK can be ensured; on the other hand, the parallel transmission of HARQ-ACK on a plurality of PUCCH cells can be avoided, and the protocol and the realization complexity can be simplified. Otherwise, the terminal may feed back the first HARQ-ACK and the second HARQ-ACK separately or in parallel.

Optionally, there is time domain overlap between the first object corresponding to the first HARQ-ACK and the first object corresponding to the second HARQ-ACK, and may include at least one of:

a) The time unit corresponding to the first HARQ-ACK is the same as the time unit corresponding to the second HARQ-ACK;

b) The time unit corresponding to the first HARQ-ACK is different from the time unit corresponding to the second HARQ-ACK, but the time domains are overlapped;

c) And the time unit corresponding to the first HARQ-ACK is different from the time unit corresponding to the second HARQ-ACK, but the PUCCH resource corresponding to the first HARQ-ACK and the PUCCH resource corresponding to the second HARQ-ACK have time domain overlapping.

In a), both point to the same time unit. In b) and c), both point to different time units, in b), the time units pointed to by both point to have time domain overlapping, and in c), the PUCCH resources corresponding to both point to have time domain overlapping. Optionally, b) and c) may be understood as that the PUCCH cell corresponding to the first HARQ-ACK is different from the PUCCH cell corresponding to the second HARQ-ACK, or that the first HARQ-ACK and the second HARQ-ACK each correspond to different PUCCH cells.

For a), optionally, the time unit corresponding to the first HARQ-ACK is the same as the time unit corresponding to the second HARQ-ACK, and may include at least one of:

the first HARQ-ACK and the second HARQ-ACK correspond to the same time unit of the same PUCCH cell;

the PUCCH cell corresponding to the first HARQ-ACK is different from the PUCCH cell corresponding to the second HARQ-ACK, but the time unit corresponding to the first HARQ-ACK is completely aligned with the time unit corresponding to the second HARQ-ACK.

In a specific implementation, the terminal may regard both as pointing to the same time unit in any of the following cases:

time domain case 1-1: the two points to the same time unit of the same PUCCH cell;

time domain cases 1-2: both point to different PUCCH cells, but the time units pointed to by both are perfectly aligned, i.e. the start and end times of the time units pointed to by both are aligned.

Under the condition that the time units pointed by the two cells are completely aligned, the following information of the PUCCH cells corresponding to the two cells is completely the same: parameter set (Numerology); the time granularity adopted; (when configuring Sub-slots) Sub-slot length. The Sub-slot length here can be alternatively understood as the number of time domain symbols occupied by a single Sub-slot.

For b), optionally, there is time domain overlap between the time unit corresponding to the first HARQ-ACK and the time unit corresponding to the second HARQ-ACK, which may include:

the PUCCH cell corresponding to the first HARQ-ACK and the PUCCH cell corresponding to the second HARQ-ACK meet a second condition;

wherein the second condition may include any one of:

the parameter sets are the same, but the time granularity adopted is different;

the parameter sets are different, but the time granularity adopted is the same;

the parameter sets are different, but the adopted time granularities are all sub-time slots, and the symbol numbers corresponding to the sub-time slots are the same;

the parameter sets are different, and the adopted time granularities are different;

the parameter sets are different, but the adopted time granularities are all sub-time slots, and the symbol numbers corresponding to the sub-time slots are different.

The time granularity may be a Slot (Slot), a Sub-Slot (Sub-Slot), a Symbol (Symbol), and the like, and may be determined according to actual requirements, which is not limited in this embodiment of the present application.

In a specific implementation, there may be a time-domain overlap between time units pointed to by the two in any of the following cases:

time domain case 2-1: the Numerology of the two PUCCH cells is the same, and the time granularity employed by the two PUCCH cells is different, such as: one PUCCH cell adopts Slot granularity, and one PUCCH cell adopts Sub-Slot granularity.

Time domain case 2-2: the Numerology of the two PUCCH cells is different, but the time granularity adopted by the two PUCCH cells is the same, for example, the Slot granularity is adopted by both PUCCH cells; or, the time granularities adopted by the two PUCCH cells are Sub-slots, and the number of symbols corresponding to the Sub-slots is the same (the Sub-slots have the same length), that is, the number of symbols corresponding to the Sub-slots is the same when the Sub-slot granularities are adopted.

For ease of understanding, please refer to fig. 3.

In fig. 3, SPS HARQ-ACK1 (abbreviated as SPS HARQ1 in the figure) and SPS HARQ-ACK3 (abbreviated as SPS HARQ3 in the figure) both point to PUCCH cell 1, SPS HARQ-ACK2 (abbreviated as SPS HARQ2 in the figure) and dynamic scheduling HARQ-ACK (abbreviated as dynamic scheduling HARQ in the figure) both point to PUCCH cell 2; numerology is different for PUCCH cell 1 and PUCCH cell 2.

PUCCH cell 1 and PUCCH cell 2 assume Slot granularity, i.e. HARQ-ACK feedback granularity at Slot level or feedback offset granularity, SPS HARQ1 points to Slot0 of PUCCH cell 1, and SPS HARQ2 points to Slot0 of PUCCH cell 2, so SPS HARQ1 and SPS HARQ2 can be multiplexed because there is time domain overlap between Slot0 of PUCCH cell 1 and Slot0 of PUCCH cell 2.

Similarly, in fig. 3, there is time domain overlap between Slot4 of PUCCH cell 1 pointed by SPS HARQ3 and Slot2 of PUCCH cell 2 pointed by dynamic scheduling HARQ, and thus SPS HARQ3 and dynamic scheduling HARQ may also be multiplexed.

If the PUCCH cell 1 and PUCCH cell 2 in fig. 3 are assumed to adopt sub-slot granularity and the number of symbols corresponding to each sub-slot is the same, a multiplexing decision result similar to the above may also be obtained, which is not described herein again.

Time domain case 2-3: the Numerology of the two PUCCH cells is different, but the time granularity adopted by the two PUCCH cells is different; or, the time granularities adopted by the two PUCCH cells are both Sub-slots, and the number of symbols corresponding to the Sub-slots is different (the lengths of the Sub-slots are different), that is, the number of symbols corresponding to the Sub-slots is different when the Sub-slot granularities are adopted.

Such as: one PUCCH cell employs a 15 kilohertz (kHz) Subcarrier Spacing (SCS), a Sub-slot of 2symbols, and another PUCCH cell employs a Sub-slot of 30kHz SCS, slot, or 7 symbols.

For c), there is a time domain overlap between the two corresponding PUCCH resources, which may include, but is not limited to: time domain overlapping exists between starting and ending moments of the corresponding PUCCH resources.

Second embodiment

The terminal may determine whether to multiplex the first HARQ-ACK and the second HARQ-ACK for feedback according to the physical layer priority corresponding to the first HARQ-ACK and the second HARQ-ACK.

Such as: when the priorities of the two corresponding physical layers are the same, the first HARQ-ACK and the second HARQ-ACK can be multiplexed together for feedback; otherwise, the first HARQ-ACK and the second HARQ-ACK can be fed back independently or in parallel, or only the HARQ-ACK corresponding to a certain physical layer priority is fed back, and the HARQ-ACK corresponding to the other physical layer priority is discarded, or only when a predefined condition is met, multiplexing between the HARQ-ACKs corresponding to the two physical layer priorities is considered.

In practical applications, the first embodiment and the second embodiment may be implemented independently or in combination. In the case of combined implementation, optionally, when the priorities of the corresponding physical layers are the same, whether a first condition is met may be further determined, and in the case that the first condition is met, the first HARQ-ACK and the second HARQ-ACK may be multiplexed together for feedback; the first HARQ-ACK and the second HARQ-ACK may be fed back independently or in parallel in case the first condition is not satisfied. When the physical layer priorities corresponding to the two are different, further judging whether a first condition is met, if so, feeding back only HARQ-ACK corresponding to a certain physical layer priority (such as high priority) and discarding HARQ-ACK corresponding to the other physical layer priority (such as low priority), or, only when a predefined condition is met, considering multiplexing between HARQ-ACK corresponding to two physical layer priorities, otherwise, adopting the aforementioned operation to transmit HARQ-ACK corresponding to one physical layer priority and discard HARQ-ACK corresponding to the other physical layer priority; the first HARQ-ACK and the second HARQ-ACK may be fed back independently or in parallel in case the first condition is not satisfied.

For 4)

As can be seen from the foregoing, the third HARQ-ACK may be both SPS HARQ-ACK and may also include dynamically scheduled HARQ-ACK. For different third HARQ-ACKs, the operation of multiplexing HARQ-ACKs by the terminal may be different, and therefore, the following is specifically described in each case:

1. the third HARQ-ACK is an SPS HARQ-ACK.

In this case, the multiplexing operation of the terminal is for SPS HARQ-ACK.

Optionally, the determining a multiplexing operation between the first HARQ-ACK and the third HARQ-ACK includes:

determining a target HARQ-ACK bit sequence, wherein the target HARQ-ACK bit sequence corresponds to a first target HARQ-ACK, and the first target HARQ-ACK comprises at least one HARQ-ACK of the first HARQ-ACK and the third HARQ-ACK;

determining a target PUCCH cell for transmitting the target HARQ-ACK bit sequence;

determining a target PUCCH resource for transmitting the target HARQ-ACK bit sequence.

For the target HARQ-ACK bit sequence.

In a specific implementation, the target HARQ-ACK bit sequence may include only a part of the first HARQ-ACK and the third HARQ-ACK, or may include all of the first HARQ-ACK and the third HARQ-ACK.

The terminal may first determine the length of the target HARQ-ACK bit sequence, and then set a value of each bit in the target HARQ-ACK bit sequence, so as to obtain the target HARQ-ACK bit sequence.

In this embodiment, the terminal may determine the target HARQ-ACK bit sequence in any of the following manners. It is understood that the target HARQ-ACK bit sequence determined by different bit sequence determination methods may include different HARQ-ACKs, and see the following description.

Bit sequence determination scheme 1

Optionally, the first target HARQ-ACK comprises the first HARQ-ACK and the third HARQ-ACK;

the determining the target HARQ-ACK bit sequence comprises any one of the following steps:

bit sequence determination mode 1-1: generating a target HARQ-ACK bit sequence according to a first index mapping relation and a second rule, wherein the first index mapping relation corresponds to N PUCCH cells;

bit sequence determination mode 1-2: according to a preset sequence, cascading N sub-codebooks which are in one-to-one correspondence with N PUCCH cells to obtain a target HARQ-ACK bit sequence, wherein a first sub-codebook is generated according to a second index mapping relation and a second rule, the second index mapping relation and the first sub-codebook correspond to the same PUCCH cell, and the first sub-codebook is any one of the N sub-codebooks;

wherein the N PUCCH cells correspond to the first HARQ-ACK and the third HARQ-ACK, and N is a positive integer; the index mapping relationship comprises a mapping relationship among a downlink Serving cell index set (DL Serving cell index), an SPS configuration index set (SPS Config index) and a downlink associated time slot index set (DL associated slot index). In this embodiment, PUCCH cells corresponding to the first HARQ-ACK and the third HARQ-ACK may be determined based on a determination manner of the first PUCCH cell, but is not limited thereto.

And the target HARQ-ACK bit sequence obtained by the bit sequence determination mode 1 comprises the first HARQ-ACK and the third HARQ-ACK.

For the bit sequence determination mode 1-1, the terminal may obtain N index mapping relationships corresponding to the N PUCCH cells one to one, and combine the N index mapping relationships to obtain the first index mapping relationship, and then, based on a DL Serving cell index-SPS Config index-DL associated slot index three-layer cycle (the cycle is farther forward and the cycle is farther outward) in the first index mapping relationship, traverse and cascade by using a second rule to obtain a target HARQ-ACK bit sequence. In the embodiment of the present application, the second rule may be a rule for multiplexing SPS HARQ-ACK in the related art, such as a rule for Rel-15/16 multiplexing SPS HARQ-ACK. In this way, the length of the target HARQ-ACK bit sequence is determined according to the first index mapping relationship and the second rule.

For the bit sequence determination mode 1-2, for each PUCCH cell of the N PUCCH cells, the sub-codebook corresponding to the PUCCH cell is obtained according to the index mapping relation and the second rule corresponding to the PUCCH cell. After N sub-codebooks which are in one-to-one correspondence with N PUCCH cells are obtained, the N sub-codebooks are cascaded end to end according to a preset sequence to obtain a target HARQ-ACK bit sequence. In this manner, the length of the first sub-codebook is determined according to a second index mapping relationship and a second rule.

In the embodiment of the present application, the preset order may be determined based on any one of the following:

index mapping relations corresponding to the codebook or the sub-codebook, wherein the index mapping relations comprise mapping relations among a downlink service cell index set, an SPS configuration index set and a downlink associated time slot index set;

PUCCH cell indexes of PUCCH cells corresponding to the codebook or the sub-codebook;

a first object corresponding to a codebook or a sub-codebook, the first object comprising at least one of: time unit, PUCCH resource.

Preset sequence 1: the preset sequence is determined based on the index mapping relation corresponding to the codebook or the sub-codebook.

In this case, the terminal may first determine an index combination (DL Serving cell index/SPS Config index) corresponding to the codebook or the sub-codebook according to an index mapping relationship corresponding to the codebook or the sub-codebook, and then may sequentially concatenate the codebooks or the sub-codebooks based on an ascending order or a descending order of indexes in the index combinations corresponding to the codebooks or the sub-codebooks. In specific implementation, different SPS Config indexes under the same DL Serving cell index may be traversed first, and then different DL Serving cell indexes may be traversed.

Optionally, the index combination corresponding to the codebook or the sub-codebook may include: and the index corresponding to the codebook or the sub-codebook is the DL Serving cell index/SPS Config index with the minimum value, the maximum value or the preset value. The index combination corresponding to the codebook or the sub-codebook may be understood as including both DL Serving cell index (DL Serving cell index) and SPS Config index (SPS configuration index), and a certain index in the index combination corresponding to each codebook or sub-codebook may be a minimum value, a maximum value, or a preset value in a set of such indexes corresponding to the codebook or sub-codebook.

The preset sequence 2: the preset sequence is determined based on a PUCCH cell index (PUCCH cell index) of a PUCCH cell corresponding to the codebook or the sub-codebook.

In this case, the codebooks or the sub-codebooks may be sequentially concatenated based on an ascending order or a descending order of PUCCH cell indexes corresponding to the codebooks or the sub-codebooks.

In the embodiment of the present application, the PUCCH cell index may be understood as any one of the following items:

cell index corresponding to the PUCCH Cell, namely the index of a serving Cell corresponding to or located by the PUCCH Cell;

a UL Serving cell index corresponding to the PUCCH cell, that is, an index of an uplink Serving cell corresponding to or in which the PUCCH cell is located;

the index of the PUCCH cell in the set of cells allowing transmission of PUCCH may be numbered from 0.

Preset sequence 3: the preset order is determined based on the first object corresponding to the codebook or the sub-codebook.

In this case, the codebooks or the sub-codebooks may be sequentially concatenated based on the time sequence corresponding to the codebooks or the sub-codebooks. In implementation, the codebooks or the Sub-codebooks may be sequentially concatenated based on the sequence of the starting times of the PUCCH resources corresponding to the codebooks or the Sub-codebooks, or the codebooks or the Sub-codebooks may be sequentially concatenated based on the sequence of the starting times of the slots/Sub-slots where the PUCCH resources corresponding to the codebooks or the Sub-codebooks are located.

Bit sequence determination method 2

Optionally, the first target HARQ-ACK includes HARQ-ACK corresponding to a second PUCCH cell, where the second PUCCH cell is one of N PUCCH cells, the N PUCCH cells correspond to the first HARQ-ACK and the third HARQ-ACK, and N is a positive integer;

the determining the target HARQ-ACK bit sequence comprises:

generating a target HARQ-ACK bit sequence according to a third index mapping relation and a second rule, wherein the third index mapping relation corresponds to the second PUCCH cell;

the index mapping relationship comprises a mapping relationship among a downlink serving cell index set, an SPS configuration index set and a downlink associated time slot set.

And the target HARQ-ACK bit sequence obtained by the bit sequence determination mode 2 only comprises the HARQ-ACK corresponding to the second PUCCH cell. That is, the terminal retains/transmits only SPS HARQ-ACKs transmitted on a single PUCCH cell.

For the bit sequence determination method 2, in specific implementation, the terminal may first select one PUCCH cell from the N PUCCH cells, that is, the second PUCCH cell, and then generate the target HARQ-ACK bit sequence based on the index mapping relationship and the second rule corresponding to the second PUCCH cell. In this manner, the length of the target HARQ-ACK bit sequence is determined according to the first index mapping relationship and the second rule.

In this embodiment of the application, optionally, the second PUCCH cell may be a PUCCH cell with a PUCCH cell index of a minimum value, a maximum value, or a preset value, among the N PUCCH cells; or, the second PUCCH cell may be a PUCCH cell with a highest physical layer priority of HARQ-ACKs of the N PUCCH cells.

Bit sequence determination scheme 3

Optionally, the first target HARQ-ACK includes HARQ-ACK corresponding to a first SPS configuration, the first SPS configuration is one SPS configuration corresponding to a second PUCCH cell, the second PUCCH cell is one of N PUCCH cells, the N PUCCH cells correspond to the first HARQ-ACK and the third HARQ-ACK, and N is a positive integer;

the determining the target HARQ-ACK bit sequence comprises:

and generating a target HARQ-ACK bit sequence according to the HARQ-ACK corresponding to the first SPS configuration.

And the target HARQ-ACK bit sequence obtained by the bit sequence determination mode 3 only comprises the HARQ-ACK corresponding to the first SPS configuration. That is, the terminal reserves/transmits only SPS HARQ-ACKs corresponding to a single SPS Config of a single PUCCH cell. In this way, the length of the target HARQ-ACK bit sequence is determined according to the HARQ-ACK corresponding to the first SPS configuration.

For the bit sequence determination method 3, in a specific implementation, the terminal may first select one PUCCH cell from the N PUCCH cells, that is, the second PUCCH cell, then select one SPS Config from a plurality of SPS configs corresponding to the second PUCCH cell, that is, the first SPS Config, and then generate a target HARQ-ACK bit sequence according to HARQ-ACK corresponding to the first SPS configuration.

Alternatively, the first SPS Config may be an SPS Config indexed to a minimum value, a maximum value, or a preset value among the plurality of SPS configs.

Bit sequence determination scheme 4

Optionally, the determining the target HARQ-ACK bit sequence includes:

determining K subsets, wherein each subset of the K subsets comprises HARQ-ACK corresponding to the same time unit in the first HARQ-ACK and the third HARQ-ACK, and K is a positive integer;

generating K codebooks corresponding to the K subsets;

and cascading the K codebooks according to a preset sequence to obtain a target HARQ-ACK bit sequence.

For the bit sequence determination method 4, in a specific implementation, the terminal may first divide the HARQ-ACK into K subsets according to the time unit corresponding thereto, and the time units corresponding to the HARQ-ACK in each subset are the same. And then, generating K codebooks corresponding to the K subsets, and performing head-to-tail cascade on the K codebooks according to a preset sequence to obtain a target HARQ-ACK bit sequence.

The generation of the K codebooks is explained below.

Optionally, the generating K sub-codebooks corresponding to the K subsets comprises any of:

generating a first codebook according to a fourth index mapping relation and a second rule, wherein the fourth index mapping relation corresponds to P PUCCH cells, and the first codebook comprises all HARQ-ACKs included in a first subset;

ii) according to a preset sequence, cascading P sub-codebooks corresponding to the P PUCCH cells one by one to obtain a first codebook, generating a second sub-codebook according to a fifth index mapping relation and a second rule, wherein the fifth index mapping relation and the second sub-codebook correspond to the same PUCCH cell, the second sub-codebook is any one of the P sub-codebooks, and the first codebook comprises all HARQ-ACKs in the first subset;

iii) generating a first codebook according to a sixth index mapping relation and a second rule, wherein the sixth index mapping relation corresponds to a fourth PUCCH cell, and the first codebook comprises HARQ-ACK corresponding to the fourth PUCCH cell;

iv) generating a first codebook according to HARQ-ACK corresponding to second SPS configuration, wherein the second SPS configuration is SPS configuration corresponding to a fourth PUCCH cell, and the first codebook comprises HARQ-ACK corresponding to the second SPS configuration;

the first codebook is any one of the K codebooks, the P PUCCH cells correspond to HARQ-ACKs included in the first subset, the first subset corresponds to the first codebook, and P is a positive integer; the fourth PUCCH cell is one of P PUCCH cells; the index mapping relation comprises a mapping relation among a downlink service cell index set, an SPS configuration index set and a downlink associated time slot index set.

The generation principle of the codebook in i) is the same as that of the target HARQ-ACK bit sequence in the bit sequence determination method 1-1; the generating principle of the codebook in ii) is the same as that of the target HARQ-ACK bit sequence in the bit sequence determination mode 1-2; the generation principle of the codebook in iii) is the same as that of the target HARQ-ACK bit sequence in the bit sequence determination method 2; the generating principle of the codebook in iv) is the same as the generating principle of the target HARQ-ACK bit sequence in the bit sequence determination mode 3, and reference may be specifically made to the foregoing related description, which is not repeated here.

In practical applications, the bit sequence determination mode 1-1 may be applied to the aforementioned time domain cases 1-1, 1-2, 2-1, 2-2, and 2-3; bit sequence determination modes 1-2, and 3 may be applied to the aforementioned time domain cases 1-2, 2-1, 2-2, and 2-3; the bit sequence determination means 4 may be applied to the aforementioned time domain cases 2-1, 2-2 and 2-3, but the relationship between the bit sequence determination means and the time domain case is not limited thereby.

For a target PUCCH cell.

Optionally, the determining the target PUCCH cell includes at least one of:

target PUCCH cell determination method 1: determining a PUCCH cell corresponding to a second target HARQ-ACK as a target PUCCH cell, wherein the second target HARQ-ACK is the HARQ-ACK of which the corresponding first index in the first HARQ-ACK and the third HARQ-ACK is the minimum value, the maximum value or the preset value, and the first index comprises at least one of a downlink serving cell index and an SPS configuration index;

target PUCCH cell determination scheme 2: determining a PUCCH cell with the index of the PUCCH cell in the N PUCCH cells as a minimum value, a maximum value or a preset value as a target PUCCH cell;

target PUCCH cell determination scheme 3: determining a second PUCCH cell as a target PUCCH cell under the condition that the first target HARQ-ACK only comprises HARQ-ACK corresponding to the second PUCCH cell, wherein the second PUCCH cell is one PUCCH cell in the N PUCCH cells;

wherein the N PUCCH cells correspond to the first HARQ-ACK and the third HARQ-ACK, and N is a positive integer.

For the target PUCCH cell determination method 1, the terminal may first select one HARQ-ACK from the first HARQ-ACK and the third HARQ-ACK, and then determine the PUCCH cell corresponding to the HARQ-ACK as the target PUCCH cell. Optionally, the HARQ-ACK of the HARQ-ACK with the first index being the minimum value, the maximum value, or a preset value may be selected from the first HARQ-ACK and the third HARQ-ACK.

Such as: and selecting the PUCCH cell with the smallest DL Serving cell index and the SPS HARQ-ACK feedback corresponding to the SPS Config with the smallest SPS Config index as a target PUCCH cell for transmitting the determined HARQ-ACK bit sequence in the DL Serving cell index/SPS Config index (note that each SPS Config corresponds to the SPS Config index under one DL Serving cell index).

For the target PUCCH cell determination scheme 2, the terminal may select one PUCCH cell from the N PUCCH cells as the target PUCCH cell. Optionally, the terminal may determine, as the target PUCCH cell, a PUCCH cell whose PUCCH cell index is a minimum value, a maximum value, or a preset value among the N PUCCH cells.

For the target PUCCH cell determination method 3, the terminal only reserves or transmits HARQ-ACK corresponding to one PUCCH cell of the N PUCCH cells, and may determine the PUCCH cell corresponding to the reserved HARQ-ACK as the target PUCCH cell.

In practical applications, the target PUCCH

cell determination schemes

1 and 2 may be applied to the bit

sequence determination schemes

1 and 4, and the target PUCCH cell determination scheme 3 may be applied to the bit

sequence determination schemes

2 and 3, but the relationship between the target PUCCH cell determination scheme and the bit sequence determination scheme is not limited thereby.

For the target PUCCH resource.

Optionally, the determining a target PUCCH resource includes:

determining a target PUCCH resource based on the target HARQ-ACK bit sequence and a third rule within a target time unit of the target PUCCH cell;

wherein the target time unit is determined based on an SPS HARQ ACK corresponding to the target PUCCH cell. The target time unit can be understood as: and feeding back the time unit corresponding to the SPS HARQ ACK corresponding to the target PUCCH cell, namely the time unit corresponding to the SPS HARQ ACK corresponding to the target PUCCH cell before multiplexing.

In specific implementation, the terminal determines the target PUCCH resource based on the bit number of the target HARQ-ACK bit sequence and a third rule. In the embodiment of the application, the second rule may be a rule for determining a PUCCH resource of SPS HARQ-ACK in the related art, such as a rule for determining a PUCCH resource of SPS HARQ-ACK in Rel-15/16.

2. The third HARQ-ACK comprises a dynamically scheduled HARQ-ACK.

In this case, the multiplexing operation of the terminal is for SPS HARQ-ACK and dynamic scheduling HARQ-ACK.

determining multiplexing operation between the first HARQ-ACK and a third HARQ-ACK according to a third target HARQ-ACK;

wherein the third target HARQ-ACK is any one of:

any one of the third HARQ-ACKs dynamically schedules a HARQ-ACK;

a HARQ-ACK with a highest physical layer priority among the first HARQ-ACK and the third HARQ-ACK.

In this way, the terminal may first select one HARQ-ACK from the first HARQ-ACK and the third HARQ-ACK, that is, a third target HARQ-ACK, and then determine the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK based on the third target HARQ-ACK.

In a specific implementation, in a PUCCH cell and a time unit corresponding to the third target HARQ-ACK, the codebook after multiplexing the first HARQ-ACK and the third HARQ-ACK may be transmitted based on the number of bits corresponding to the codebook after multiplexing the first HARQ-ACK and the third HARQ-ACK and the PUCCH resource determined by the PUCCH resource determination rule related to the third target HARQ-ACK.

And under the condition that the third target HARQ-ACK is one of the third HARQ-ACKs dynamically scheduled, the first HARQ-ACK and the third HARQ-ACK can correspond to the same physical layer priority or different physical layer priorities.

And under the condition that the third target HARQ-ACK is the HARQ-ACK with the highest physical layer priority in the first HARQ-ACK and the third HARQ-ACK, the third target HARQ-ACK can be SPS HARQ-ACK or dynamic scheduling HARQ-ACK.

And in the case that the third HARQ-ACK includes a dynamically scheduled HARQ-ACK, the first HARQ-ACK and the third HARQ-ACK may be carried in different codebooks for transmission, such as a Type 1codebook (Type-1 codebook), a Type-2codebook, and the like. For different codebook types, the terminal may determine the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK in different manners, which is specifically referred to the following description.

In specific implementation, the terminal may determine the bit number of the codebook first, and then set the value of each bit in the codebook, so as to obtain the codebook.

Scenario one, the first HARQ-ACK and the third HARQ-ACK are carried by a first type codebook.

Alternatively, the first Type codebook may be a Type-1codebook, but is not limited thereto.

In this case, optionally, the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK comprises at least one of:

and under the condition that the time domain feedback offset sets correspond to the PUCCH cell groups one by one, generating the first type codebook according to a fourth rule.

Under the condition that a time domain feedback offset set is in one-to-one correspondence with a PUCCH cell, determining whether the first HARQ-ACK and the third HARQ-ACK meet a third condition to obtain a determination result;

generating the first type codebook according to the determination result;

wherein the third condition comprises any one of:

PUCCH cells corresponding to the first HARQ-ACK and the third HARQ-ACK are the same;

and the time domain feedback offset sets corresponding to the first HARQ-ACK and the third HARQ-ACK are the same.

In this optional embodiment, the terminal may determine the generation manner of the first type codebook based on the K1set configuration manner.

Under the condition that the time domain feedback offset sets are in one-to-one correspondence with the PUCCH cell groups, that is, under the condition that K1 sets corresponding to PUCCH cells in the same PUCCH cell are configured in a unified manner, the terminal may generate the first type codebook according to a fourth rule. At this time, the output codebook can be considered to always contain the HARQ-ACK bit corresponding to the SPS HARQ-ACK. In the embodiment of the present application, the fourth rule may be a Type-1codebook pseudo code flow construction rule in the related art, such as a Type-1codebook pseudo code flow construction rule in Rel-15/16. In this case, the number of bits of the first type codebook is determined according to a fourth rule.

Under the condition that the time domain feedback offset sets are in one-to-one correspondence with the PUCCH cells, that is, under the condition that K1 sets corresponding to PUCCH cells in the same PUCCH cell are independently configured, the terminal may generate the first type codebook based on a determination result of whether the first HARQ-ACK and the third HARQ-ACK satisfy a third condition.

Optionally, the generating a first type codebook according to the determination result includes at least one of:

under the condition that the first HARQ-ACK and the third HARQ-ACK meet the third condition, generating a first type codebook according to a fourth rule;

performing a third operation on a condition that the first HARQ-ACK and the third HARQ-ACK do not satisfy the third condition, the third operation comprising at least one of:

HARQ-ACK multiplexing scheme 1: cascading a second codebook and a third codebook to obtain a first type codebook, wherein the second codebook is generated by a first part of HARQ-ACK according to a fourth rule, the third codebook is generated by a second part of HARQ-ACK according to a second rule, and the first HARQ-ACK and the third HARQ-ACK are composed of the first part of HARQ-ACK and the second part of HARQ-ACK;

HARQ-ACK multiplexing scheme 2: updating a time domain feedback offset set corresponding to a target PUCCH cell, and generating a first type codebook according to a fourth rule and the updated time domain feedback offset set, wherein the updated time domain feedback offset set comprises time domain feedback offsets corresponding to the first HARQ-ACK and the third HARQ-ACK, and the target PUCCH is used for transmitting the first type codebook;

HARQ-ACK multiplexing scheme 3: generating a first type codebook according to a dynamic scheduling HARQ-ACK and a fourth rule in the first HARQ-ACK and the third HARQ-ACK;

HARQ-ACK multiplexing scheme 4: and generating a first type codebook according to SPS HARQ-ACK and a second rule in the first HARQ-ACK and the third HARQ-ACK.

For HARQ-ACK multiplexing mode 1

The terminal may divide the first HARQ-ACK and the third HARQ-ACK into: a first partial HARQ-ACK and a second partial HARQ-ACK. Then, generating codebooks corresponding to the first part of HARQ-ACK and the second part of HARQ-ACK respectively to obtain two codebooks, and then cascading the two codebooks to obtain the first type codebook. Optionally, the third codebook may be concatenated after the second codebook.

In this case, the number of bits of the second codebook is determined according to the fourth rule. The number of bits of the third codebook is determined according to a second rule.

In an embodiment of the application, said first part of HARQ-ACKs comprises dynamically scheduled HARQ-ACKs. Therefore, a codebook corresponding to the first partial HARQ-ACK may be generated based on the fourth rule.

The second part HARQ-ACK does not comprise dynamically scheduled HARQ-ACKs, i.e. the second part comprises only SPS HARQ-ACKs. Therefore, the codebook corresponding to the second partial HARQ-ACK may be generated based on a second rule.

For the first partial HARQ-ACK, the following two implementations may be included:

first implementation mode

In this implementation, the first partial HARQ-ACK may include both a dynamically scheduled HARQ-ACK and an SPS HARQ-ACK.

Optionally, the first partial HARQ-ACK comprises a dynamically scheduled HARQ-ACK of the first HARQ-ACK and the third HARQ-ACK and at least one of:

SPS HARQ-ACK corresponding to the target PUCCH cell;

SPS HARQ-ACK corresponding to a third PUCCH cell, wherein a time domain feedback offset set corresponding to the third PUCCH cell is the same as a time domain feedback offset set corresponding to the target PUCCH cell;

a fourth target SPS HARQ-ACK, wherein the time domain feedback offset corresponding to the fourth target HARQ-ACK is in the time domain feedback offset set corresponding to the target PUCCH cell.

In this optional embodiment, SPS HARQ-ACK corresponding to the target PUCCH cell may be used; and/or SPS HARQ-ACK with the corresponding K1set same as the K1set corresponding to the target PUCCH cell; and/or dividing SPS HARQ-ACK of the corresponding K1 in the K1set corresponding to the target PUCCH cell into the first part of HARQ-ACK.

Second implementation

Optionally, the first partial HARQ-ACK comprises a dynamically scheduled HARQ-ACK of the first HARQ-ACK and the third HARQ-ACK. I.e. the first partial HARQ-ACK may comprise only dynamically scheduled HARQ-ACKs.

For HARQ-ACK multiplexing mode 2

The K1Set corresponding to the target PUCCH cell may be expanded, so that the K1 corresponding to the SPS HARQ-ACK is included in the K1Set applied to the target PUCCH cell, and then a codebook is constructed based on the fourth rule and the K1Set corresponding to the expanded target PUCCH cell. At this point, the output codebook may be considered to always contain the HARQ-ACK bits corresponding to SPS HARQ-ACK. In this case, the number of bits of the first type codebook is determined based on a fourth rule and a K1set construction codebook corresponding to the expanded target PUCCH cell.

For HARQ-ACK multiplexing mode 3

The terminal may transmit only the dynamically scheduled HARQ-ACK of the first and third HARQ-ACKs. A codebook corresponding to the dynamically scheduled HARQ-ACK may be generated using a fourth rule. In this case, the number of bits of the first type codebook is determined based on a fourth rule.

For HARQ-ACK multiplexing mode 4

The terminal may transmit only SPS HARQ-ACKs of the first HARQ-ACK and the third HARQ-ACK. A codebook corresponding to the dynamically scheduled HARQ-ACK may be generated using a second rule. In this case, the number of bits of the first type codebook is determined based on a second rule.

Scene two, the first HARQ-ACK and the third HARQ-ACK are carried through a second type codebook.

Alternatively, the second Type codebook may be any Type codebook except for Type-1codebook, such as Type-2codebook, type-3codebook, and so on.

In this case, optionally, the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK comprises:

and cascading a fourth codebook and a fifth codebook to obtain a second type codebook, wherein the fourth codebook is generated according to a fifth rule by the dynamically scheduled HARQ-ACK in the first HARQ-ACK and the third HARQ-ACK, and the fifth codebook is generated according to a second rule by the SPS HARQ-ACK in the first HARQ-ACK and the third HARQ-ACK.

In this optional embodiment, a fifth rule may be utilized to generate a codebook corresponding to the dynamically scheduled HARQ-ACK in the first HARQ-ACK and the third HARQ-ACK, that is, a fourth codebook; and generating a codebook corresponding to the SPS HARQ-ACK in the first HARQ-ACK and the third HARQ-ACK by using a second rule, namely a fifth codebook. And then, cascading the fourth codebook and the fifth codebook to obtain a second type codebook. Optionally, the fifth codebook may be concatenated after the fourth codebook.

In the embodiment of the present application, the fifth rule may be a construction rule of a second type codebook in the related art. Optionally, the fifth rule may be a rule that is identical or similar to the fourth rule.

Referring to fig. 4, fig. 4 is a second flowchart of a feedback method provided in the embodiment of the present application. The feedback method of fig. 4 is performed by a network-side device. As shown in fig. 4, the feedback method may include the steps of:

step 401, under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to the terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the network side equipment executes a second operation related to a first HARQ-ACK, wherein the first HARQ-ACK is semi-persistent scheduling (SPS) HARQ-ACK.

Wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

Step 402, the network side device receives target information according to the second operation, where the target information includes at least one of the following: the first HARQ-ACK; HARQ-ACK multiplexed with the first HARQ-ACK.

In the feedback method of this embodiment, the network side device may determine at least one of the following: a feedback PUCCH cell corresponding to SPS HARQ-ACK; a time domain feedback offset corresponding to SPS HARQ-ACK; whether SPS HARQ-ACK is multiplexed with other HARQ-ACK; and multiplexing the SPS HARQ-ACK and other HARQ-ACK, and sending the HARQ-ACK according to the determined content. Therefore, the embodiment of the application provides the feedback mechanism of the SPS HARQ-ACK, and the feasibility of the feedback of the SPS HARQ-ACK is ensured, so that the feedback time delay of the SPS HARQ-ACK can be shortened.

Optionally, the first PUCCH cell satisfies any one of:

Optionally, the first time domain feedback offset satisfies any one of:

the first time domain feedback offset is determined based on a time domain feedback offset index indicated by first DCI and a first time domain feedback offset set, the first time domain feedback offset set is a time domain feedback offset set corresponding to a third HARQ-ACK, and the third HARQ-ACK is a HARQ-ACK corresponding to the PDSCH transmission scheduled by the first DCI;

the first time domain feedback offset is determined based on a time domain feedback offset index indicated by the first DCI and a second time domain feedback offset set, where the second time domain feedback offset set is a time domain feedback offset set corresponding to a first cell, and the first cell is any one of: a master cell of the master cell group; a primary cell of the secondary cell group; a PUCCH secondary cell;

wherein the first condition comprises at least one of:

a first object corresponding to the first HARQ-ACK has time domain overlap with a first object corresponding to the second HARQ-ACK, the first object including at least one of: time unit, PUCCH resource;

the first HARQ-ACK and the second HARQ-ACK correspond to the same PUCCH cell.

Optionally, there is time domain overlap between the first object corresponding to the first HARQ-ACK and the first object corresponding to the second HARQ-ACK, including at least one of:

the time unit corresponding to the first HARQ-ACK is the same as the time unit corresponding to the second HARQ-ACK;

the time unit corresponding to the first HARQ-ACK is different from the time unit corresponding to the second HARQ-ACK, but time domain overlapping exists;

the time unit corresponding to the first HARQ-ACK is different from the time unit corresponding to the second HARQ-ACK, but the PUCCH resource corresponding to the first HARQ-ACK is overlapped with the PUCCH resource corresponding to the second HARQ-ACK in time domain.

Optionally, the time unit corresponding to the first HARQ-ACK is the same as the time unit corresponding to the second HARQ-ACK, and includes at least one of:

Optionally, the time unit corresponding to the first HARQ-ACK and the time unit corresponding to the second HARQ-ACK have time domain overlap, including:

wherein the second condition comprises any one of:

the parameter sets are the same, but the time granularity adopted is different;

the parameter sets are different, but the time granularity adopted is the same;

Optionally, in a case that the third HARQ-ACK is an SPS HARQ-ACK, the determining a multiplexing operation between the first HARQ-ACK and the third HARQ-ACK includes:

determining a length of a target HARQ-ACK bit sequence based on a first target rule, the target HARQ-ACK bit sequence corresponding to a first target HARQ-ACK, the first target HARQ-ACK including at least one of the first HARQ-ACK and the third HARQ-ACK;

It should be noted that, a manner of determining the length of the target HARQ-ACK bit sequence by the network side device is the same as a manner of determining the length of the target HARQ-ACK bit sequence by the terminal, which may specifically refer to the relevant description of the method embodiment in fig. 2, and is not described here again.

Optionally, the determining the target PUCCH cell includes at least one of:

determining a PUCCH cell corresponding to a second target HARQ-ACK as a target PUCCH cell, wherein the second target HARQ-ACK is the HARQ-ACK of which the corresponding first index in the first HARQ-ACK and the third HARQ-ACK is the minimum value, the maximum value or the preset value, and the first index comprises at least one of a downlink serving cell index and an SPS configuration index;

determining a PUCCH cell with the index of the PUCCH cell in the N PUCCH cells as a minimum value, a maximum value or a preset value as a target PUCCH cell;

determining a second PUCCH cell as a target PUCCH cell under the condition that the first target HARQ-ACK only comprises HARQ-ACK corresponding to the second PUCCH cell, wherein the second PUCCH cell is one PUCCH cell in the N PUCCH cells;

Optionally, the determining a target PUCCH resource includes:

determining a target PUCCH resource based on the target HARQ-ACK bit sequence and a third rule in a target time unit of the target PUCCH cell;

wherein the target time unit is determined based on an SPS HARQ ACK corresponding to the target PUCCH cell.

Optionally, in a case that the third HARQ-ACK includes a dynamically scheduled HARQ-ACK, the determining a multiplexing operation between the first HARQ-ACK and the third HARQ-ACK includes:

wherein the third target HARQ-ACK is any one of:

any one of the third HARQ-ACKs dynamically schedules a HARQ-ACK;

Optionally, in a case that the first HARQ-ACK and the third HARQ-ACK are carried through a first type codebook, the determining a multiplexing operation between the first HARQ-ACK and the third HARQ-ACK includes:

determining the number of bits of the first type codebook based on a second target rule.

It should be noted that, a manner of determining the number of bits of the first type codebook by the network side device is the same as a manner of determining the number of bits of the first type codebook by the terminal, which may specifically refer to the relevant description of the method embodiment in fig. 2, and is not described here again.

Optionally, in a case that the first HARQ-ACK and the third HARQ-ACK are carried through a second type codebook, the determining a multiplexing operation between the first HARQ-ACK and the third HARQ-ACK includes:

determining the number of bits of the second type codebook based on a third target rule.

It should be noted that the manner in which the network side device determines the number of bits of the second type codebook is the same as the manner in which the terminal determines the number of bits of the second type codebook, and specifically refer to the relevant description of the method embodiment in fig. 2, which is not described herein again.

It should be noted that, the present embodiment is taken as an embodiment of a network side device corresponding to the embodiment of the method in fig. 2, and therefore, reference may be made to relevant descriptions in the embodiment of the method in fig. 2, and the same beneficial effects may be achieved. To avoid repetition of the description, the description is omitted.

In practical applications, the method embodiment of fig. 2 and the method embodiment of fig. 4 may be implemented independently or in combination, and in the case of combined implementation, the contents, meanings and lengths of HARQ-ACK bit sequences that need to be fed back are understood to be consistent on both sides, and the difference between operations on both sides lies in: for the value of each bit in the bit sequence, the terminal side sets and sends the value, and the network side receives and acquires the value.

It should be noted that, various optional implementations described in the embodiments of the present application may be implemented in combination with each other or separately, and the embodiments of the present application are not limited thereto.

For ease of understanding, examples are illustrated below:

for a certain PUCCH cell group configured for the UE, it is assumed that there are M Serving cells that can be used for transmitting PUCCH to feed back HARQ-ACK, and is subsequently referred to as PUCCH cell. The feedback of SPS HARQ-ACK can comprise one or more of the following items:

1. transmission framework for SPS HARQ-ACK.

For the feedback of SPS HARQ-ACK, the PUCCH cell (and applied K1) where the SPS HARQ-ACK is transmitted is determined first, specifically refer to "determination of SPS HARQ-ACK transmission carrier".

For a certain SPS PDSCH transmission, determining whether the corresponding HARQ-ACK is multiplexed with other SPS HARQ-ACKs or dynamically scheduled HARQ-ACKs, specifically referring to "determination of whether SPS HARQ-ACK is multiplexed with DG/SPS HARQ-ACK", and then distinguishing the following conditions for processing respectively:

multiplexing case 1: when multiplexing with dynamically scheduled HARQ-ACK is not needed, the following cases can be further distinguished:

multiplexing case 1-1: when multiplexing is performed between SPS HARQ-ACKs, the specific operation performed may be referred to as "multiplexing operation of SPS HARQ-ACK and SPS HARQ-ACK", including HARQ-ACK bit sequence determination, PUCCH cell selection, and PUCCH resource selection, where the determined HARQ-ACK bit sequence is transmitted on the determined PUCCH cell based on the selected PUCCH resource.

Multiplexing cases 1-2: when the SPS HARQ-ACK is not multiplexed, each SPS HARQ-ACK (corresponding to a single SPS Config) is fed back on the determined PUCCH cell based on the selected PUCCH resource.

Multiplexing case 2: when multiplexing with the dynamically scheduled HARQ-ACK is required, the specific operation performed may refer to "multiplexing operation of SPS HARQ-ACK and dynamically scheduled HARQ-ACK", including HARQ-ACK bit sequence determination, PUCCH cell selection, and PUCCH resource selection, where the determined HARQ-ACK bit sequence is transmitted on the determined PUCCH cell based on the selected PUCCH resource.

For multiplexing case 2, if multiplexing between multiple SPS HARQ-ACKs and dynamically scheduled HARQ-ACKs is involved, the multiplexing order may be based on the operation described in "multiplexing operation of SPS HARQ-ACKs with dynamically scheduled HARQ-ACKs".

2. Determination of SPS HARQ-ACK transmission carriers.

Here, the SPS HARQ-ACK transmission carrier may also be understood as a PUCCH cell where SPS HARQ-ACK feedback is located, and the determination may be performed in any one of the following manners:

SPS HARQ-ACK carrier mode 1: dynamically indicated by the SPS activation/reactivation DCI.

When the SPS is activated or reactivated, the PUCCH cell indicated in the SPS activation/reactivation DCI may be used as the PUCCH cell for subsequent SPS HARQ-ACK feedback. It is understood that K1 indicated in the SPS activation/reactivation DCI also applies to subsequent SPS HARQ-ACK feedback (corresponding to K1 mode 1 described below).

The PUCCH cells indicated by the respective SPS activation/reactivation DCIs of different SPS configs at this time may be the same or different, whether multiplexing is performed between the corresponding SPS HARQ-ACKs, and the multiplexing operation when multiplexing, see the description below.

Alternatively, the PUCCH cell indicated in the SPS activation/reactivation DCI may be required to be PCell/PSCell/PUCCH SCell. It should be understood that the PUCCH cell group corresponding to the Serving cell in which the SPS Config is located necessarily includes one or more of PCell/PSCell/PUCCH SCell. Thus, the indication domain setting and function of the DCI can be ensured to be consistent for SPS PDSCH transmission and dynamic scheduling PDSCH transmission, and only a rule is additionally introduced for SPS HARQ-ACK to simplify the feedback operation.

SPS HARQ-ACK carrier mode 2: feedback is fixed on the PCell/PSCell/PUCCH SCell.

The K1Set applied to each PUCCH cell may be uniformly configured for each PUCCH cell in the entire PUCCH cell group, or may be independently configured for each PUCCH cell.

The PUCCH cell indicated in the SPS activation/reactivation DCI may be applied only to HARQ-ACK feedback (non-SPS HARQ-ACK) corresponding to PDSCH transmissions scheduled by this DCI. K1 indicated in the SPS activation/reactivation DCI applies to HARQ-ACK feedback corresponding to PDSCH transmissions scheduled by this DCI. For K1 for subsequent SPS HARQ-ACK feedback application, it may be determined in any of the following manners:

k1, mode 1: k1 indicated/determined with SPS activation/reactivation DCI is maintained. At this time, K1 corresponding to SPS HARQ-ACK may not be in K1Set applied to PCell/PSCell/PUCCH SCell, and is specifically related to a K1Set configuration mode of each PUCCH cell, as described above.

K1, mode 2: using K1 of the corresponding index in K1Set applied by PCell/PSCell/PUCCH SCell along with K1 index indicated/determined by SPS activation/reactivation DCI. At this time, when parameters need to be configured on the network side, a situation that the K1 index corresponding to the SPS HARQ-ACK is an illegal value with respect to the K1Set applied to the PCell/PSCell/PUCCH SCell (for example, when the K1 index starts from 0, the K1 index is already > = the number of K1 sets included in the K1 Set) is avoided.

K1 mode 3: the applied K1, or K1 index, is configured through higher layer signaling. When K1 is configured directly by higher layer signaling, the configured K1 may or may not be in the K1Set applied by PCell/PSCell/PUCCH SCell. When the K1 index is configured by higher layer signaling, the K1 of the corresponding index in the K1Set applied by PCell/PSCell/PUCCH SCell is used. At this time, when parameters need to be configured on the network side, a situation that the K1 index corresponding to the SPS HARQ-ACK is an illegal value with respect to the K1Set applied to the PCell/PSCell/PUCCH SCell (for example, when the K1 index starts from 0, the K1 index is already > = the number of K1 included in the K1 Set) is avoided.

3. A decision whether SPS HARQ-ACK is multiplexed with dynamic scheduling/SPS HARQ-ACK.

For the multiplexing decision, any of the following ways may be adopted:

multiplexing decision mode 1: and judging whether multiplexing is carried out or not based on the time domain overlapping condition.

This way, PUCCH carrying HARQ-ACK can be avoided from being transmitted in parallel on more than one PUCCH cell. Alternatively, multiplexing may be considered only when the physical layer priorities corresponding to the HARQ-ACKs are the same. Alternatively, multiplexing may also be performed when the predefined condition is met when the corresponding physical layer priorities of the two (or more involved) are different. The two HARQ-ACKs involved in the multiplexing decision may be considered to satisfy the time-domain overlap condition for the mutual multiplexing when at least one of the following conditions is satisfied (note: it may also be necessary to superimpose other conditions for the actual/final multiplexing, e.g. the aforementioned requirements/restrictions on physical layer priority):

time domain case 1: both pointing to the same Slot/Sub-Slot, including at least the following cases:

time domain case 1-1: the two point to the same Slot/Sub-Slot on the same PUCCH cell;

time domain case 1-2: both point to different PUCCH cells and the slots/Sub-slots pointed by both are perfectly aligned (Numerology, slot/Sub-Slot adopted, and Sub-Slot length (when Sub-Slot is configured) for both PUCCH cells are all identical).

Time domain case 2: the two slots point to different slots/Sub-slots, but there is time domain overlap between the corresponding PUCCH resources, or there is time domain overlap between the corresponding slots/Sub-slots.

Time domain overlapping exists between the two corresponding slots/Sub-slots, and at least the following situations are included:

time domain case 2-1: the two PUCCH cells point to different PUCCH cells, the Numerology of the two PUCCH cells is the same, one PUCCH cell adopts Slot granularity, and the other PUCCH cell adopts Sub-Slot granularity;

time domain case 2-2: the two cells point to different PUCCH cells, the Numerology of the two PUCCH cells is different, but the Slot/Sub-Slot granularity adopted by the two PUCCH cells is the same, or the Sub-Slot length when the Sub-Slot is adopted is the same, and one example can be seen in figure 3;

time domain case 2-3: the two points to different PUCCH cells, the Numerology of the two PUCCH cells is different, and the Slot/Sub-Slot granularity adopted by the two PUCCH cells or the Sub-Slot length when the Sub-Slot is adopted is different.

For example, one PUCCH cell employs a Sub-slot of 15kHz SCS,2symbols, and the other PUCCH cell employs a Sub-slot of 30kHz SCS, slot, or 7 symbols.

The PUCCH resources corresponding to the two PUCCH resources may overlap with each other in time domain, and it may be understood that, for any HARQ-ACK, the PUCCH resource corresponding to the HARQ-ACK is determined based on a predefined rule (e.g., a PUCCH resource determination rule defined in Rel-15/16), and when the PUCCH resources corresponding to the two PUCCH resources overlap with each other in time domain based on an absolute start-stop time, it may be determined that the PUCCH resources corresponding to the two PUCCH resources overlap with each other in time domain.

Multiplexing decision mode 2: multiplexing is only done when the same Slot/Sub-Slot of the same PUCCH cell is configured/scheduled.

The above configuration may be understood as for SPS HARQ-ACK and the scheduling may be understood as for dynamically scheduled HARQ-ACK. At this time, the HARQ-ACK in a single PUCCH cell is multiplexed based on Rel-15/16 rules, the HARQ-ACK carried in different PUCCH cells are not multiplexed with each other, and parallel transmission (of PUCCHs carrying HARQ-ACK in multiple PUCCH cells) can be considered.

4. And multiplexing the SPS HARQ-ACK and the SPS HARQ-ACK.

The multiplexing operation between SPS HARQ-ACKs is described below, distinguishing the aforementioned time domain cases:

time domain case 1

1) HARQ-ACK bit sequence determination

For the time-domain case 1-1, multiplexing into a single HARQ-ACK codebook may be performed based on the existing Rel-15/16 rule, for example, based on a DL Serving cell index-SPS Config index-DL associated slot index three-layer loop (the more front the column is, the more outside the loop is), traversing and cascading to obtain an SPS HARQ-ACK codebook.

For time domain case 1-2, either of the following may be employed:

codebook determination method 1-1: the existing Rel-15/16 rule is slightly extended, that is, DL Serving cell index/SPS configuration index/DL assigned slot index traversed when determining the HARQ-ACK bit sequence is the union of DL Serving cell index/SPS configuration index/DL assigned slot index sets corresponding to each PUCCH cell (multiplexed corresponding to HARQ-ACK).

Codebook determination method 1-2: and determining a corresponding HARQ-ACK bit sequence by using the SPS HARQ-ACK fed back on the single PUCCH cell according to a Rel-15/16 rule, taking the HARQ-ACK bit sequence as a sub-codebook corresponding to the PUCCH cell, and then performing head-to-tail cascade on the sub-codebooks corresponding to the PUCCH cells according to a preset sequence.

The head-to-tail concatenation order may be based on DL Serving cell index/SPS Config index (based on the content of the sub-codebook) corresponding to each SPS HARQ-ACK sub-codebook, or PUCCH cell index (based on PUCCH cells carrying the sub-codebook), for example, in an ascending order. When the method is based on the DL Serving cell index/SPS Config index, different SPS Config indexes under the same DL Serving cell index can be traversed first, and then different DL Serving cell indexes are traversed; when based on PUCCH cell index, only a single dimension traversal is involved. The PUCCH Cell index may be understood as a Cell index corresponding to a PUCCH Cell (or a UL Serving Cell index corresponding to a PUCCH Cell), or a local index of a PUCCH Cell in a Cell set allowing PUCCH transmission, and may be numbered from 0; the PUCCH cell index mentioned later follows the understanding here and is not described in detail.

Optionally, the time sequence of the SPS HARQ-ACK Sub-codebooks may also be based, for example, the starting time of the PUCCH resource corresponding to each SPS HARQ-ACK Sub-codebook, or the starting time of the Slot/Sub-Slot where the PUCCH resource is located, or the like.

The DL Serving cell index/SPS Config index corresponding to a certain SPS HARQ-ACK sub-codebook may be a minimum/maximum value/predefined value (e.g., predefined index) of the DL Serving cell index/SPS Config index corresponding to the SPS HARQ-ACK included in the DL Serving cell index/SPS Config index.

Codebook determination method 1-3: only SPS HARQ-ACKs transmitted on a single PUCCH cell are reserved/transmitted.

For example, only the SPS HARQ-ACK transmitted on the PUCCH cell with the PUCCH cell index maximum/minimum/predefined value or the PUCCH cell with higher physical layer priority of the HARQ-ACK is reserved/transmitted, and the SPS HARQ-ACK on the PUCCH cell can be multiplexed into a single HARQ-ACK codebook based on the existing Rel-15/16 rule. Optionally, the SPS HARQ-ACK on this PUCCH cell may also transmit only the HARQ-ACK corresponding to a single SPS Config, for example, transmit only the HARQ-ACK corresponding to the SPS Config with the index max/min/being a predefined value.

2) PUCCH cell & PUCCH resource selection.

For the time domain case 1-1, the related single PUCCH cell may be used, and the corresponding PUCCH resource may be determined based on the existing Rel-15/16 rule in the pointed single Slot/Sub-Slot.

For the time domain case 1-2, based on the codebook determination method, corresponding operations are taken:

when the codebook determination method 1-1 or the codebook determination method 1-2 is adopted, any one of the following methods may be adopted:

PUCCH cell mode 1-1: and taking the PUCCH cell in which the SPS HARQ-ACK feedback corresponding to the DL Serving cell index/SPS Config index with the minimum/maximum/predefined value related to the multiplexed codebook is located as a target PUCCH cell for transmitting the determined HARQ-ACK bit sequence.

For example, in the DL Serving cell index/SPS Config index (Note: each SPS Config corresponds to the SPS Config index under one DL Serving cell index) related to the HARQ-ACK bit sequence, the PUCCH cell where the SPS HARQ-ACK feedback corresponding to the SPS Config with the smallest SPS Config index is located is selected as the target PUCCH cell for transmitting the determined HARQ-ACK bit sequence.

Correspondingly, a Slot/Sub-Slot of the SPS HARQ-ACK feedback indication (before multiplexing) on the target PUCCH cell is also selected, and a corresponding PUCCH resource is determined in the Slot/Sub-Slot based on the determined number of bits of the HARQ-ACK bit sequence and the existing Rel-15/16 rule.

PUCCH cell mode 1-2: taking PUCCH cells with minimum/maximum Cell index/predefined value in PUCCH Cell (formed) set corresponding to SPS HARQ-ACK (before multiplexing) related to the multiplexed codebook as target PUCCH cells for transmitting determined HARQ-ACK bit sequence

PUCCH cell mode 1-3: and when the codebook determination mode 1-3 is adopted, transmitting the SPS HARQ-ACK corresponding to the PUCCH cell by using the reserved PUCCH cell.

At the moment, the Slot/Sub-Slot indicated by the SPS HARQ-ACK feedback is used, and the corresponding PUCCH resources are determined in the Slot/Sub-Slot based on the SPS HARQ-ACK bit number and the existing Rel-15/16 rule.

Time domain case 2

1) The HARQ-ACK bit sequence determination may be made in any of the following ways:

codebook determination mode 2-1: dividing the subset into one to a plurality of subsets based on the time domain condition 1, adopting the processing corresponding to the time domain condition 1 for each subset to obtain a single SPS HARQ-ACK sub-codebook, and performing head-to-tail cascade connection on the SPS HARQ-ACK sub-codebooks corresponding to the subsets according to a preset sequence when a plurality of subsets exist.

The head-to-tail concatenation order may be based on DL Serving cell index/SPS Config index (based on the content of the sub-codebook) corresponding to each SPS HARQ-ACK sub-codebook, or PUCCH cell index (based on PUCCH cells carrying the sub-codebook), for example, in an ascending order. When based on the DL Serving cell index/SPS Config index, different SPS Config indexes under the same DL Serving cell index can be traversed first, and then different DL Serving cell indexes are traversed; when based on PUCCH cell index, only a single dimension of traversal is involved.

Optionally, the time sequence of each SPS HARQ-ACK Sub-codebook may also be based, for example, based on a starting time of a PUCCH resource corresponding to each SPS HARQ-ACK Sub-codebook, or a starting time of a Slot/Sub-Slot where the PUCCH resource is located.

At present, the situation that a single PUCCH cell corresponds to more than one sub-codebooks and needs to participate in multiplexing together is not considered for the moment, and may be regarded as Error Case.

Codebook determination mode 2-2: and directly multiplexing SPS HARQ-ACK needing multiplexing into a single codebook. The corresponding operations in codebook determination mode 1-1 or codebook determination mode 1-2 may be employed.

Codebook determination mode 2-3: only SPS HARQ-ACKs transmitted on a single PUCCH cell are reserved/transmitted. The corresponding operations in codebook determination schemes 1-3 may be employed.

2) PUCCH cell & PUCCH resource selection

Based on the adopted codebook determination mode, corresponding operations are adopted:

when the codebook determination method 2-1 or the codebook determination method 2-2 is adopted, any one of the following methods may be adopted:

PUCCH cell mode 2-1: and taking the PUCCH cell in which the SPS HARQ-ACK feedback corresponding to the DL Serving cell index/SPS Config index with the minimum/maximum/predefined value related to the multiplexed codebook is located as a target PUCCH cell for transmitting the determined HARQ-ACK bit sequence.

For example, in the DL Serving cell index/SPS Config index (Note: each SPS Config corresponds to the SPS Config index under one DL Serving cell index) related to the HARQ-ACK bit sequence, the PUCCH cell with the smallest DL Serving cell index and corresponding SPS HARQ-ACK feedback with the SPS Config with the smallest SPS Config index is selected as the target PUCCH cell for transmitting the determined HARQ-ACK bit sequence.

PUCCH cell mode 2-2: taking PUCCH cells with minimum/maximum Cell index/predefined value in PUCCH Cell (formed) set corresponding to SPS HARQ-ACK (before multiplexing) related to the multiplexed codebook as target PUCCH cells for transmitting determined HARQ-ACK bit sequence

Note that: the above two methods are completely consistent with the operation when the codebook determination method 1-1 or the codebook determination method 1-2 is adopted.

And when a codebook determination mode 2-3 is adopted, transmitting the SPS HARQ-ACK corresponding to the reserved PUCCH cell.

And at the moment, the Slot/Sub-Slot indicated by the SPS HARQ-ACK feedback is used, and the corresponding PUCCH resource is determined in the Slot/Sub-Slot based on the SPS HARQ-ACK bit number and the existing Rel-15/16 rule.

Note that: the above description is fully consistent with the operation when codebook determination schemes 1-3 are employed.

Note that: when SPS HARQ-ACK carrier mode 2 is employed, only time domain case 1-1 may be involved.

5. And multiplexing SPS HARQ-ACK and dynamic scheduling HARQ-ACK.

When SPS HARQ-ACK needs to be multiplexed with dynamic scheduling HARQ-ACK, on a PUCCH cell indicated by feedback of the dynamic scheduling HARQ-ACK and in a Slot/Sub-Slot indicated by the dynamic scheduling HARQ-ACK, corresponding PUCCH resources are determined based on the number of bits corresponding to a codebook after multiplexing and a Rel-15/16 rule (for example, a PUCCH resource set is selected based on the number of bits of the codebook, and a single PUCCH resource in the PUCCH resource set is selected based on a PUCCH resource index (optionally, in combination with a CCE index occupied by DCI) indicated in dynamic scheduling DCI).

Alternatively, the above operations may be applied to multiplexing between SPS HARQ-ACKs and dynamically scheduled HARQ-ACKs corresponding to the same physical layer priority when physical layer priorities are configured, and/or to multiplexing between SPS HARQ-ACKs and dynamically scheduled HARQ-ACKs corresponding to different physical layer priorities when HARQ-ACK multiplexing across physical layer priorities is supported.

Optionally, when the physical layer priority is configured and multiplexing of HARQ-ACK supporting the cross-physical layer priority is supported, when the SPS HARQ-ACK corresponds to a higher priority, the dynamically scheduled HARQ-ACK corresponds to a lower priority, and the SPS HARQ-ACK needs to be multiplexed with the dynamically scheduled HARQ-ACK, within the PUCCH cell and Slot/Sub-Slot determined for the SPS HARQ-ACK, the corresponding PUCCH resource is determined based on the number of bits corresponding to the codebook after multiplexing and the Rel-15/16 rule (e.g., a single PUCCH resource is selected from the configured PUCCH resource list based on the number of bits of the codebook).

Note that: for dynamic scheduling, a PUCCH cell transmitting HARQ-ACK corresponding to the PUCCH cell is indicated in downlink scheduling DCI, and a single K1 in the PUCCH cell is indicated based on a K1Set applied by the PUCCH cell (when the K1Set only includes a single value, the single K1 is directly applied, and explicit indication is not needed in the DCI), so as to determine a Slot/Sub-Slot fed back by the dynamic scheduling HARQ-ACK.

The PUCCH cell actually transmitting the HARQ-ACK can be used as a target PUCCH cell, and the Slot/Sub-Slot actually transmitting the HARQ-ACK can be used as a target Slot/Sub-Slot.

For the multiplexing of the codebook, the following codebook types can be distinguished to respectively adopt corresponding operations:

for Type-1codebook

The structure is related to K1Set, and corresponding processing can be carried out based on the configuration mode of the K1 Set:

k1Set configuration mode 1: and uniformly configuring the whole PUCCH cell group, and applying the whole PUCCH cell group to each PUCCH cell.

The codebook can be directly constructed based on the Rel-15/16Type-1codebook pseudo code flow, and the output codebook is considered to always contain the HARQ-ACK bits corresponding to the SPS HARQ-ACK.

Note that: when constructing Type-1codebook, each DL Serving cell in the current PUCCH cell group may be considered based on the K1Set applied by the target PUCCH cell, including a relationship between each DL Serving cell and the SCS of the target PUCCH cell.

K1Set configuration mode 2: each PUCCH cell is configured separately.

If the PUCCH cells corresponding to the SPS HARQ-ACK and the dynamic scheduling HARQ-ACK are the same (when a plurality of SPS HARQ-ACKs are related, the PUCCH cells corresponding to the SPS HARQ-ACK are all the same as the PUCCH cells corresponding to the dynamic scheduling HARQ-ACK), or if the K1Set applied to each related PUCCH cell (including the PUCCH cells corresponding to the dynamic scheduling HARQ-ACK and the PUCCH cells corresponding to the SPS HARQ-ACK; when a plurality of SPS HARQ-ACKs are related, the K1Set applied to each SPS HARQ-ACK before multiplexing) is the same, constructing a codebook based on the Rel-15/16Type-1codebook pseudo code flow and the K1Set applied to the target PUCCH cell (Note: at this time, the multiplexing sequence between the SPS-ACK and the HARQ-ACK and the dynamic scheduling HARQ-ACK can be understood as not to be distinguished, and only the finally transmitted codebook is concerned);

otherwise, any of the following may be employed:

SPS HARQ-ACK multiplexing mode 1: the SPS HARQ-ACK of the target PUCCH cell is adopted as the corresponding PUCCH cell (before multiplexing), and/or the SPS HARQ-ACK of the target PUCCH cell which is adopted by the corresponding PUCCH cell (before multiplexing) and has the same K1Set as the K1Set adopted by the target PUCCH cell, and/or the SPS HARQ-ACK of the target PUCCH cell which is adopted by the corresponding K1 can be contained in a codebook (assumed as codebook 1) constructed based on the Rel-15/16Type-1codebook pseudo code flow and the K1Set adopted by the target PUCCH cell, the corresponding HARQ-ACK bit in the codebook 1 is used, if the rest SPS HARQ-ACK relates to a plurality of Config, the ' multiplexing operation of the SPS HARQ-ACK and the SPS-ACK ' can be referred to ' to form a single codebook (assumed as codebook 2; when the rest SPS HARQ-ACK only relates to a single Config, the SPS-ACK and the SPS-ACK directly correspond to codebook 2), and then the codebook 1 and the SPS-ACK are cascaded into the codebook 2 according to a predefined sequence (for example, after the SPS-2 is cascaded into the codebook 1);

SPS HARQ-ACK multiplexing mode 2: expanding the K1Set applied to the target PUCCH cell according to the needs, so that the K1 corresponding to the SPS HARQ-ACK is contained in the K1Set applied to the target PUCCH cell, and then constructing a codebook based on a Rel-15/16Type-1codebook pseudo code flow and the K1Set applied to the target PUCCH cell, wherein the output codebook can be considered to always contain HARQ-ACK bits corresponding to the SPS HARQ-ACK;

SPS HARQ-ACK multiplexing mode 3: the dynamic scheduling HARQ-ACK constructs a codebook (assumed as codebook 1) based on a Rel-15/16Type-1codebook pseudo code flow and a K1Set applied by a target PUCCH cell, and if the SPS HARQ-ACK involves a plurality of SPS configs, the SPS HARQ-ACK can refer to the multiplexing operation of the SPS HARQ-ACK and the SPS HARQ-ACK to form a single codebook (assumed as codebook 2; when the SPS HARQ-ACK only involves a single SPS Config, the SPS HARQ-ACK directly corresponds to codebook 2), and then the codebook 1 and the codebook 2 are cascaded head and tail in a predefined order (for example, the codebook 2 is cascaded after the codebook 1).

SPS HARQ-ACK multiplexing mode 4: only dynamically scheduled HARQ-ACKs are transmitted and a codebook is constructed based on the Rel-15/16Type-1codebook pseudo code flow and the K1Set applied by the target PUCCH cell, or only SPS HARQ-ACKs are transmitted (when multiple SPS configs are involved, multiplexing between SPS HARQ-ACKs is considered, specifically, reference may be made to "multiplexing operation of SPS HARQ-ACK and SPS HARQ-ACK").

Note that: it can be assumed that the K1Set corresponding to the dynamic scheduling HARQ-ACK is the same as the K1Set applied to the target PUCCH cell (including two cases: the target PUCCH cell is the PUCCH cell indicated by the dynamic scheduling HARQ-ACK, the target PUCCH cell is the PUCCH cell determined by the SPS HARQ-ACK, and the K1Set applied to the PUCCH cell is the same as the K1Set applied to the PUCCH cell indicated by the dynamic scheduling HARQ-ACK); the SPS HARQ-ACK multiplexing scheme 1 may be understood as a feedback overhead optimization of the SPS HARQ-ACK multiplexing scheme 3, which may avoid redundant HARQ-ACK bits.

For Type-2codebook

Multiplexing may be done with rules consistent with or similar to existing Rel-15/16 rules, SPS HARQ-ACK always concatenated after dynamically scheduled HARQ-ACK. When multiple SPS configs are involved, the concatenated SPS HARQ-ACK is a codebook output after multiplexing among SPS HARQ-ACKs is considered, and specifically, reference may be made to "multiplexing operation of SPS HARQ-ACK and SPS HARQ-ACK".

For other codebook types

For the enhanced dynamic codebook, it is sufficient to perform the processing in a similar manner as the Type-2codebook (SPS HARQ-ACK is always concatenated after the dynamically scheduled HARQ-ACK).

For Type-3codebook, it is only necessary to directly transmit a codebook constructed based on the Rel-16 rule on the target PUCCH cell indicated by DCI, and it is not necessary to consider multiplexing between SPS HARQ-ACK and dynamic scheduling HARQ-ACK (the Type-3codebook already contains HARQ-ACK corresponding to each HARQ process configured on each DL Serving cell in the current PUCCH cell group).

It can be seen that, in the embodiment of the present application, the feedback of SPS HARQ-ACK may include one or more of the following items:

1. transmission framework for SPS HARQ-ACK: and (4) the whole framework flow, and each link calls a corresponding detail operation/mechanism.

2. Determination of SPS HARQ-ACK transmission carriers

Any of the following may be used:

SPS HARQ-ACK carrier mode 1: dynamic indication by SPS activation/reactivation DCI;

SPS HARQ-ACK carrier mode 2: feedback is fixed on the PCell/PSCell/PUCCH SCell.

When the SPS HARQ-ACK carrier mode 2 is adopted, the K1 for SPS HARQ-ACK feedback application may be determined by any one of the following modes:

k1, mode 1: k1 indicated/determined with SPS activation/reactivation DCI;

k1, mode 2: using K1 corresponding to the index in K1Set applied by PCell/PSCell/PUCCH SCell along with the K1 index indicated/determined by SPS activation/reactivation DCI;

k1 mode 3: the applied K1, or K1 index, is configured through higher layer signaling.

Any of the following may be employed:

multiplexing decision mode 1: judging whether multiplexing is carried out or not based on the time domain overlapping condition;

the case that the time domain overlapping condition is satisfied may include at least:

time domain case 1: both point to the same Slot/Sub-Slot;

time domain case 2: the two slots point to different Slot/Sub-slots, but time domain overlapping exists between the corresponding PUCCH resources of the two slots, or time domain overlapping exists between the corresponding Slot/Sub-slots of the two slots.

The time domain case 1/2 can further subdivide the case.

Multiplexing decision mode 2: multiplexing is only done when the configuration/scheduling points to the same Slot/Sub-Slot of the same PUCCH cell.

4. And multiplexing the SPS HARQ-ACK and the SPS HARQ-ACK.

Various ways of HARQ-ACK bit sequence determination and PUCCH cell & PUCCH resource selection are respectively given for time domain cases 1/2 (and subdivision cases thereof).

5. Multiplexing operation of SPS HARQ-ACK and dynamic scheduling HARQ-ACK

And multiplexing the overall transmission flow.

For multiplexing of codebooks, operations of codebook types (various multiplexing operations for Type-1 codebook) are distinguished.

By the embodiment of the application, a feasible solution is provided for PUCCH cell determination and transmission (including multiplexing) of SPS HARQ-ACK, so that the integrity and the feasibility of the Alt.1 scheme are ensured, and the HARQ-ACK feedback delay is shortened.

It should be noted that, in the feedback method provided in the embodiment of the present application, the execution main body may be a feedback device, or a control module in the feedback device for executing the feedback method. In the embodiment of the present application, a feedback device is taken as an example to execute a feedback method, and the feedback device provided in the embodiment of the present application is described.

As shown in fig. 5, the feedback device 500 includes:

a first executing module 501, configured to execute a first operation related to a first hybrid automatic repeat request acknowledgement HARQ-ACK when a first physical uplink control channel PUCCH cell group corresponding to a terminal includes at least two PUCCH cells that may be used for transmitting the HARQ-ACK, where the first HARQ-ACK is a semi-persistent scheduling SPS HARQ-ACK;

a sending module 502, configured to send target information according to the first operation, where the target information includes at least one of the following: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

Optionally, the first PUCCH cell satisfies any one of:

determined by a first rule comprising: transmitting, by a first cell, SPS HARQ-ACK, the first cell being any one of: a master cell of the master cell group; a primary cell of the secondary cell group; and the PUCCH secondary cell.

Optionally, the first time domain feedback offset satisfies any one of:

wherein the first condition comprises at least one of:

the first HARQ-ACK and the second HARQ-ACK correspond to the same PUCCH cell.

Optionally, there is a time domain overlap between the first object corresponding to the first HARQ-ACK and the first object corresponding to the second HARQ-ACK, and the method includes at least one of:

the time unit corresponding to the first HARQ-ACK is different from the time unit corresponding to the second HARQ-ACK, but the time domains are overlapped;

Optionally, time-domain overlapping exists between the time unit corresponding to the first HARQ-ACK and the time unit corresponding to the second HARQ-ACK, and the method includes:

wherein the second condition comprises any one of:

the parameter sets are the same, but the time granularity adopted is different;

the parameter sets are different, but the time granularity adopted is the same;

determining a target HARQ-ACK bit sequence, the target HARQ-ACK bit sequence corresponding to a first target HARQ-ACK, the first target HARQ-ACK comprising at least one of the first HARQ-ACK and the third HARQ-ACK;

Optionally, the first target HARQ-ACK includes the first HARQ-ACK and the third HARQ-ACK;

generating a target HARQ-ACK bit sequence according to a first index mapping relation and a second rule, wherein the first index mapping relation corresponds to N PUCCH cells;

according to a preset sequence, cascading N sub-codebooks which are in one-to-one correspondence with N PUCCH cells to obtain a target HARQ-ACK bit sequence, wherein a first sub-codebook is generated according to a second index mapping relation and a second rule, the second index mapping relation and the first sub-codebook correspond to the same PUCCH cell, and the first sub-codebook is any one of the N sub-codebooks;

the N PUCCH cells correspond to the first HARQ-ACK and the third HARQ-ACK, and N is a positive integer; the index mapping relation comprises a mapping relation among a downlink service cell index set, an SPS configuration index set and a downlink associated time slot index set.

Optionally, the first target HARQ-ACK includes a HARQ-ACK corresponding to a second PUCCH cell, where the second PUCCH cell is one of N PUCCH cells, the N PUCCH cells correspond to the first HARQ-ACK and the third HARQ-ACK, and N is a positive integer;

the determining the target HARQ-ACK bit sequence comprises the following steps:

the determining the target HARQ-ACK bit sequence comprises:

Optionally, the second PUCCH cell is a PUCCH cell with a PUCCH cell index of a minimum value, a maximum value, or a preset value among the N PUCCH cells; or the second PUCCH cell is the PUCCH cell with the highest physical layer priority of HARQ-ACK in the N PUCCH cells.

Optionally, the determining the target HARQ-ACK bit sequence includes:

generating K codebooks corresponding to the K subsets;

Optionally, the generating K sub-codebooks corresponding to the K subsets includes any one of:

generating a first codebook according to a fourth index mapping relation and a second rule, wherein the fourth index mapping relation corresponds to P PUCCH cells, and the first codebook comprises all HARQ-ACKs included in the first subset;

according to a preset sequence, cascading P sub-codebooks which correspond to P PUCCH cells one by one to obtain a first codebook, generating a second sub-codebook according to a fifth index mapping relation and a second rule, wherein the fifth index mapping relation and the second sub-codebook correspond to the same PUCCH cell, the second sub-codebook is any one of the P sub-codebooks, and the first codebook comprises all HARQ-ACKs in a first subset;

generating a first codebook according to a sixth index mapping relation and a second rule, wherein the sixth index mapping relation corresponds to a fourth PUCCH cell, and the first codebook comprises HARQ-ACK corresponding to the fourth PUCCH cell;

generating a first codebook according to HARQ-ACK corresponding to second SPS configuration, wherein the second SPS configuration is one SPS configuration corresponding to a fourth PUCCH cell, and the first codebook comprises HARQ-ACK corresponding to the second SPS configuration;

Optionally, the preset order is determined based on any one of:

Optionally, the determining the target PUCCH cell includes at least one of:

determining a PUCCH cell with the index of the PUCCH cell in the N PUCCH cells as the minimum value, the maximum value or a preset value as a target PUCCH cell;

Optionally, the determining the target PUCCH resource includes:

wherein the third target HARQ-ACK is any one of:

any one of the third HARQ-ACKs dynamically schedules a HARQ-ACK;

HARQ-ACK with highest physical layer priority in the first HARQ-ACK and the third HARQ-ACK.

Optionally, in a case that the first HARQ-ACK and the third HARQ-ACK are carried through a first type codebook, the determining a multiplexing operation between the first HARQ-ACK and the third HARQ-ACK includes at least one of:

generating the first type codebook according to the determination result;

wherein the third condition comprises any one of:

cascading a second codebook and a third codebook to obtain a first type codebook, wherein the second codebook is generated by a first part of HARQ-ACK according to a fourth rule, the third codebook is generated by a second part of HARQ-ACK according to a second rule, and the first HARQ-ACK and the third HARQ-ACK are composed of the first part of HARQ-ACK and the second part of HARQ-ACK;

updating a time domain feedback offset set corresponding to a target PUCCH cell, and generating a first type codebook according to a fourth rule and the updated time domain feedback offset set, wherein the updated time domain feedback offset set comprises time domain feedback offsets corresponding to the first HARQ-ACK and the third HARQ-ACK, and the target PUCCH is used for transmitting the first type codebook;

generating a first type codebook according to a dynamic scheduling HARQ-ACK and a fourth rule in the first HARQ-ACK and the third HARQ-ACK;

and generating a first type codebook according to SPS HARQ-ACK and a second rule in the first HARQ-ACK and the third HARQ-ACK.

SPS HARQ-ACK corresponding to the target PUCCH cell;

Optionally, the first partial HARQ-ACK comprises a dynamically scheduled HARQ-ACK of the first HARQ-ACK and the third HARQ-ACK.

The feedback device in the embodiment of the present application may be a device, a device or an electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the type of the terminal 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a television (television), a teller machine (teller machine), a self-service machine (kiosk), or the like, and the embodiments of the present application are not limited in particular.

The feedback device 500 provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 2, and achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

As shown in fig. 6, the feedback device 600 includes:

a second performing module 601, configured to perform a first operation related to a second HARQ-ACK when at least two PUCCH cells that are available for transmitting a hybrid automatic repeat request acknowledgement HARQ-ACK are included in a first PUCCH cell group corresponding to a terminal, where the first HARQ-ACK is a semi-persistent scheduling SPS HARQ-ACK;

a receiving module 602, configured to receive target information according to the first operation, where the target information includes at least one of the following: the second HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

Optionally, the first PUCCH cell satisfies any one of:

Optionally, the first time domain feedback offset satisfies any one of:

wherein the first condition comprises at least one of:

the first HARQ-ACK and the second HARQ-ACK correspond to the same PUCCH cell.

wherein the second condition comprises any one of:

the parameter sets are the same, but the time granularities adopted are different;

the parameter sets are different, but the time granularity adopted is the same;

Optionally, the determining the target PUCCH cell includes at least one of:

Optionally, the determining a target PUCCH resource includes:

wherein the third target HARQ-ACK is any one of:

any one of the third HARQ-ACKs dynamically schedules a HARQ-ACK;

The feedback device in the embodiment of the present application may be a device, a device or an electronic device having an operating system, or a component, an integrated circuit, or a chip in a network-side device. The network-side device may include, but is not limited to, the types of the network-side device 12 listed above, and the embodiment of the present application is not limited in particular.

The feedback device 600 provided in the embodiment of the present application can implement each process implemented in the embodiment of the method in fig. 4, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

Optionally, as shown in fig. 7, an embodiment of the present application further provides a communication device 700, which includes a processor 701, a memory 702, and a program or an instruction stored in the memory 702 and executable on the processor 701, for example, when the communication device 700 is a terminal, the program or the instruction is executed by the processor 701 to implement each process of the method embodiment in fig. 2, and the same technical effect can be achieved. When the communication device 700 is a network-side device, the program or the instructions are executed by the processor 701 to implement the processes of the method embodiment shown in fig. 4, and the same technical effects can be achieved.

An embodiment of the present application further provides a terminal, including a processor and a communication interface, where:

the processor is configured to:

the communication interface is to:

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 800 includes, but is not limited to: at least some of the components of the radio frequency unit 801, the network module 802, the audio output unit 803, the input unit 804, the sensor 805, the display unit 806, the user input unit 807, the interface unit 808, the memory 809, and the processor 810, and the like.

Those skilled in the art will appreciate that the terminal 800 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 810 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that, in the embodiment of the present application, the input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics Processing Unit 8041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes a touch panel 8071 and other input devices 8072. A touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two portions of a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 801 receives downlink data from a network side device, and then processes the downlink data to the processor 810; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 809 can include a high-speed random access Memory, and can also include a nonvolatile Memory, wherein the nonvolatile Memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 810 may include one or more processing units; alternatively, the processor 810 may be integrated into an application processor that handles primarily the operating system, user interface, and applications or instructions, and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.

Wherein the processor 810 is configured to:

a radio frequency unit 801, configured to:

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

It should be noted that, in this embodiment, the terminal 800 may implement each process in the method embodiment in fig. 2 in this embodiment, and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.

An embodiment of the present application further provides a network side device, including a processor and a communication interface, where:

the communication interface is to:

receiving target information according to the second operation, the target information including at least one of: the first HARQ-ACK; a HARQ-ACK multiplexed with the first HARQ-ACK;

wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 9, the network device 900 includes: antenna 91, radio frequency device 92, baseband device 93. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the rf device 92 receives information through the antenna 91, and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted and transmits the information to the rf device 92, and the rf device 92 processes the received information and transmits the processed information through the antenna 91.

The above-mentioned frequency band processing means may be located in the baseband means 93, and the method performed by the network side device in the above embodiment may be implemented in the baseband means 93, where the baseband means 93 includes a processor 94 and a memory 95.

The baseband device 93 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 9, wherein one of the chips, for example, the processor 94, is connected to the memory 95 to call up the program in the memory 95 to perform the network device operation shown in the above method embodiment.

The baseband device 93 may further include a network interface 96 for exchanging information with the radio frequency device 92, for example, a Common Public Radio Interface (CPRI).

Specifically, the network side device in the embodiment of the present application further includes: the instructions or programs stored in the memory 85 and capable of being executed on the processor 84, the processor 84 calls the instructions or programs in the memory 85 to execute the processes in the embodiment of the method shown in fig. 4, or the methods executed by the modules shown in fig. 6, and achieve the same technical effects, which are not described herein again to avoid repetition.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiment shown in fig. 2 or fig. 4, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method embodiment in fig. 2 or fig. 4, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the method embodiment shown in fig. 2 or fig. 4, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

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

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method according to the embodiments of the present application.

While the present application has been described with reference to the embodiments shown in the drawings, the present application is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that many more modifications and variations can be made without departing from the spirit of the application and the scope of the appended claims.

Claims

1. A feedback method, comprising:

under the condition that a first Physical Uplink Control Channel (PUCCH) cell group corresponding to a terminal comprises at least two PUCCH cells which can be used for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK), the terminal executes a first operation related to a first HARQ-ACK, and the first HARQ-ACK is semi-persistent scheduling (SPS) HARQ-ACK;

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

2. The method of claim 1, wherein the first PUCCH cell satisfies any one of:

determined by a first rule comprising: transmitting SPS HARQ-ACK through a first cell, the first cell being any one of: a master cell of the master cell group; a primary cell of the secondary cell group; and PUCCH secondary cells.

3. The method of claim 1, wherein the first time domain feedback offset satisfies any one of:

4. The method of claim 1, wherein the determining whether the first HARQ-ACK is multiplexed with a second HARQ-ACK comprises:

determining that the first HARQ-ACK and the second HARQ-ACK are multiplexed under the condition that a first condition is met;

wherein the first condition comprises at least one of:

the first HARQ-ACK and the second HARQ-ACK correspond to the same PUCCH cell.

5. The method of claim 4, wherein the first object corresponding to the first HARQ-ACK has a time domain overlap with the first object corresponding to the second HARQ-ACK, and wherein at least one of:

6. The method of claim 5, wherein the time unit corresponding to the first HARQ-ACK is the same as the time unit corresponding to the second HARQ-ACK, and wherein at least one of:

7. The method of claim 5, wherein the time unit corresponding to the first HARQ-ACK has time-domain overlap with the time unit corresponding to the second HARQ-ACK, and wherein:

wherein the second condition comprises any one of:

the parameter sets are the same, but the time granularity adopted is different;

the parameter sets are different, but the time granularity adopted is the same;

8. The method of claim 1, wherein in the case that the third HARQ-ACK is an SPS HARQ-ACK, the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK comprises:

9. The method of claim 8, wherein the first target HARQ-ACK comprises the first HARQ-ACK and the third HARQ-ACK;

wherein the N PUCCH cells correspond to the first HARQ-ACK and the third HARQ-ACK, and N is a positive integer; the index mapping relation comprises a mapping relation among a downlink service cell index set, an SPS configuration index set and a downlink associated time slot index set.

10. The method of claim 8, wherein the first target HARQ-ACK comprises a HARQ-ACK corresponding to a second PUCCH cell, wherein the second PUCCH cell is one of N PUCCH cells corresponding to the first HARQ-ACK and the third HARQ-ACK, and wherein N is a positive integer;

the determining the target HARQ-ACK bit sequence comprises:

11. The method of claim 8, wherein the first target HARQ-ACK comprises a HARQ-ACK corresponding to a first SPS configuration, wherein the first SPS configuration is one SPS configuration corresponding to a second PUCCH cell, wherein the second PUCCH cell is one of N PUCCH cells corresponding to the first HARQ-ACK and the third HARQ-ACK, wherein N is a positive integer;

the determining the target HARQ-ACK bit sequence comprises:

12. The method according to claim 10 or 11, wherein the second PUCCH cell is a PUCCH cell with a PUCCH cell index of the N PUCCH cells being a minimum value, a maximum value, or a preset value; or the second PUCCH cell is the PUCCH cell with the highest physical layer priority of HARQ-ACK in the N PUCCH cells.

13. The method of claim 8, wherein determining the target HARQ-ACK bit sequence comprises:

generating K codebooks corresponding to the K subsets;

14. The method of claim 13, wherein generating the K sub-codebooks corresponding to the K subsets comprises any one of:

15. The method according to claim 9, 13 or 14, wherein the preset order is determined based on any one of:

index mapping relation corresponding to codebook or sub-codebook, the said index mapping relation includes the mapping relation among index set of downlink service cell, index set of SPS configuration and index set of downlink associated time slot;

PUCCH cell indexes of PUCCH cells corresponding to the codebooks or the sub-codebooks;

16. The method of claim 8, wherein the determining the target PUCCH cell comprises at least one of:

determining a second PUCCH cell as a target PUCCH cell under the condition that the first target HARQ-ACK only comprises HARQ-ACK corresponding to the second PUCCH cell, wherein the second PUCCH cell is one PUCCH cell of the N PUCCH cells;

17. The method of claim 8, wherein the determining the target PUCCH resource comprises:

18. The method of claim 1, wherein in the case that the third HARQ-ACK comprises a dynamically scheduled HARQ-ACK, the determining the multiplexing operation between the first and third HARQ-ACKs comprises:

wherein the third target HARQ-ACK is any one of:

any one of the third HARQ-ACKs dynamically schedules a HARQ-ACK;

19. The method of claim 18, wherein the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK in case the first HARQ-ACK and the third HARQ-ACK are carried through a first type codebook comprises at least one of:

Under the condition that the time domain feedback offset set is in one-to-one correspondence with the PUCCH cells, determining whether the first HARQ-ACK and the third HARQ-ACK meet a third condition or not to obtain a determination result;

generating the first type codebook according to the determination result;

wherein the third condition comprises any one of:

20. The method of claim 19, wherein generating the first type codebook according to the determination comprises at least one of:

21. The method of claim 20, wherein the first partial HARQ-ACK comprises a dynamically scheduled HARQ-ACK of the first HARQ-ACK and the third HARQ-ACK and at least one of:

SPS HARQ-ACK corresponding to the target PUCCH cell;

22. The method of claim 20, wherein the first partial HARQ-ACK comprises a dynamically scheduled HARQ-ACK of the first HARQ-ACK and the third HARQ-ACK.

23. The method of claim 18, wherein the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK in case the first HARQ-ACK and the third HARQ-ACK are carried through a second type codebook comprises:

24. A feedback method, comprising:

wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

25. The method of claim 24, wherein the first PUCCH cell satisfies any one of:

26. The method of claim 24, wherein the first time domain feedback offset satisfies any one of:

27. The method of claim 24, wherein the determining whether the first HARQ-ACK is multiplexed with a second HARQ-ACK comprises:

wherein the first condition comprises at least one of:

the first HARQ-ACK and the second HARQ-ACK correspond to the same PUCCH cell.

28. The method of claim 27, wherein the first object corresponding to the first HARQ-ACK has time-domain overlap with the first object corresponding to the second HARQ-ACK, and wherein the method comprises at least one of:

29. The method of claim 28, wherein the time unit corresponding to the first HARQ-ACK is the same as the time unit corresponding to the second HARQ-ACK, and wherein at least one of:

30. The method of claim 28, wherein the time unit corresponding to the first HARQ-ACK has a time-domain overlap with the time unit corresponding to the second HARQ-ACK, comprising:

wherein the second condition comprises any one of:

the parameter sets are the same, but the time granularity adopted is different;

the parameter sets are different, but the time granularity adopted is the same;

31. The method of claim 24, wherein determining the multiplexing operation between the first HARQ-ACK and third HARQ-ACK in the case that the third HARQ-ACK is an SPS HARQ-ACK comprises:

32. The method of claim 31, wherein the determining the target PUCCH cell comprises at least one of:

33. The method of claim 31, wherein the determining the target PUCCH resource comprises:

34. The method of claim 24, wherein in the case that the third HARQ-ACK comprises a dynamically scheduled HARQ-ACK, the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK comprises:

wherein the third target HARQ-ACK is any one of:

any one of the third HARQ-ACKs dynamically schedules a HARQ-ACK;

35. The method of claim 34, wherein the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK in case the first HARQ-ACK and the third HARQ-ACK are carried through a first type codebook comprises:

36. The method of claim 34, wherein the determining the multiplexing operation between the first HARQ-ACK and the third HARQ-ACK in case the first HARQ-ACK and the third HARQ-ACK are carried through a second type codebook comprises:

37. A feedback apparatus, characterized in that the feedback apparatus comprises:

wherein the first operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

38. A feedback apparatus, characterized in that the feedback apparatus comprises:

wherein the second operation comprises at least one of:

determining a first PUCCH cell corresponding to the first HARQ-ACK;

39. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the feedback method of any one of claims 1 to 23.

40. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the feedback method according to any one of claims 24 to 37.

41. A readable storage medium, characterized in that a program or instructions are stored thereon, which program or instructions, when executed by a processor, carry out the steps of the feedback method of any one of claims 1 to 23, or carry out the steps of the feedback method of any one of claims 24 to 37.