CN115336354A - HARQ-ACK codebook feedback method, terminal equipment and network equipment - Google Patents

Abstract

The embodiment of the application provides a feedback method of a HARQ-ACK codebook, terminal equipment and network equipment, which can optimize communication on a shared spectrum. The feedback method of the HARQ-ACK codebook comprises the following steps: the terminal equipment receives a first DCI format on a first cell, wherein the first DCI format is used for indicating the sleep state of a secondary cell, and the first DCI format does not schedule physical channel transmission; the terminal device generates a first HARQ-ACK codebook, wherein the first HARQ-ACK codebook comprises at least one of a feedback bit sequence and a first bit sequence which are arranged on N cells based on HARQ process numbers, the first bit sequence comprises ACK information corresponding to the first DCI format, the N cells comprise the first cell, and N is a positive integer.

Description

HARQ-ACK codebook feedback method, terminal equipment and network equipment

The present application claims priority from PCT patent application with the application number PCT/CN2020/089889 entitled "feedback method of HARQ-ACK codebook, terminal device and network device" filed in china patent office on 12/05/2020, which is incorporated herein by reference in its entirety.

Technical Field

The embodiment of the application relates to the field of communication, and in particular relates to a feedback method of a HARQ-ACK codebook, a terminal device and a network device.

Background

In a New Radio-based access to unlicensed spectrum (NR-U) system, a spectrum used is a shared spectrum. In a communication system such as an NR-U system networked over a shared spectrum, a behavior of indicating whether a secondary cell is dormant or not using a Downlink Control Information (DCI) format is supported. However, in the case that the terminal device configures or activates other types of feedback at the same time, at present, there is no scheme how to feedback the DCI format indicating the behavior of the secondary cell sleeping or not sleeping, so that the communication of the NR-U system on the shared spectrum is affected.

Disclosure of Invention

The embodiment of the application provides a feedback method of a Hybrid Automatic Repeat reQuest (HARQ-ACK) codebook, a terminal device and a network device, wherein the terminal device can simultaneously carry feedback information corresponding to a DCI format for indicating a behavior of sleeping or not sleeping of a secondary cell and feedback information arranged on N cells based on Hybrid Automatic Repeat reQuest (HARQ) process numbers in a Hybrid Automatic Repeat reQuest (HARQ-ACK) codebook, so that communication on a shared spectrum is optimized.

In a first aspect, a method for feeding back an HARQ-ACK codebook is provided, where the method includes:

the terminal equipment receives a first DCI format on a first cell, wherein the first DCI format is used for indicating the sleep state of a secondary cell, and the first DCI format does not schedule the transmission of a physical channel;

the terminal equipment generates a first HARQ-ACK codebook, wherein the first HARQ-ACK codebook comprises at least one of a feedback bit sequence and a first bit sequence which are arranged on N cells based on HARQ process numbers, the first bit sequence comprises ACK information corresponding to the first DCI format, the N cells comprise the first cell, and N is a positive integer.

Optionally, the secondary cell dormant state includes a secondary cell dormant or non-dormant behavior.

In a second aspect, a feedback method of a HARQ-ACK codebook is provided, the method including:

the network equipment sends a first DCI format to the terminal equipment on a first cell, wherein the first DCI format is used for indicating the dormancy state of a secondary cell, and the first DCI format does not schedule physical channel transmission;

the network device receives a first HARQ-ACK codebook sent by the terminal device, where the first HARQ-ACK codebook includes at least one of a feedback bit sequence and a first bit sequence arranged on N cells based on a HARQ process number, where the first bit sequence includes ACK information corresponding to the first DCI format, the N cells include the first cell, and N is a positive integer.

Optionally, the secondary cell dormant state includes a secondary cell dormant or non-dormant behavior.

In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or each implementation manner thereof.

Specifically, the terminal device includes a functional module configured to execute the method in the first aspect or its implementation manner.

In a fourth aspect, a network device is provided for performing the method of the second aspect or its implementation manners.

In particular, the network device comprises functional modules for performing the methods in the second aspect or its implementations described above.

In a fifth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory, and executing the method in the first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method of the second aspect or each implementation mode thereof.

In a seventh aspect, an apparatus is provided to implement the method in any one of the first to second aspects or implementations thereof.

Specifically, the apparatus includes: a processor configured to call and run the computer program from the memory, so that the apparatus on which the apparatus is installed performs the method according to any one of the first aspect to the second aspect or the implementation manner thereof.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method of any one of the first to second aspects or implementations thereof.

In a ninth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of any one of the first to second aspects or implementations thereof.

A tenth aspect provides a computer program that, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof.

Through the technical scheme, the terminal equipment generates the first HARQ-ACK codebook, and the first HARQ-ACK codebook comprises at least one of the feedback bit sequence and the first bit sequence which are arranged on the N cells based on the HARQ process numbers, namely the terminal equipment can simultaneously carry the feedback information corresponding to the DCI format for indicating the sleep state of the auxiliary cell and the feedback information which is arranged on the N cells based on the HARQ process numbers in one HARQ-ACK codebook, so that the communication on the shared spectrum is optimized.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of single HARQ-ACK feedback of type 1 and type2 provided in an embodiment of the present application.

Fig. 3 is a schematic flowchart of a feedback method of a HARQ-ACK codebook according to an embodiment of the present application.

Fig. 4 is a schematic diagram of HARQ-ACK codebook feedback provided according to an embodiment of the present application.

Fig. 5 is a diagram of another HARQ-ACK codebook feedback provided according to an embodiment of the present application.

Fig. 6 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a network device provided according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication system provided in accordance with an embodiment of the present application.

Fig. 11 is a diagram illustrating another HARQ-ACK codebook feedback provided according to an embodiment of the present application.

Fig. 12 is a diagram illustrating another HARQ-ACK codebook feedback provided according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without making any creative effort with respect to the embodiments in the present application belong to the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global System for Mobile communications (GSM) System, code Division Multiple Access (CDMA) System, wideband Code Division Multiple Access (WCDMA) System, general Packet Radio Service (GPRS), long Term Evolution (Long Term Evolution, LTE) System, LTE-a System, new Radio (NR) System, evolution System of NR System, LTE-based Access to unlicensed spectrum, LTE-U) System, NR-based to unlicensed spectrum (NR-U) System, non-Terrestrial communication network (NTN) System, universal Mobile Telecommunications System (UMTS), wireless Local Area Network (WLAN), wireless Fidelity (WiFi), 5th-Generation (5G) System, or other communication systems.

Generally, the conventional Communication system supports a limited number of connections and is easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication but also, for example, device to Device (D2D) Communication, machine to Machine (M2M) Communication, machine Type Communication (MTC), vehicle to Vehicle (V2V) Communication, or Vehicle to internet (V2X) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, may also be applied to a Dual Connectivity (DC) scenario, and may also be applied to an independent (SA) networking scenario.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; alternatively, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where the licensed spectrum may also be considered as an unshared spectrum.

Various embodiments are described in connection with a network device and a terminal device, where the terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment.

The terminal device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next generation communication system such as an NR Network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, and so on.

In the embodiment of the application, the terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet personal computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in remote medical treatment (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In this embodiment, the network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB, eNodeB) in LTE, a relay Station or an Access Point, or a vehicle-mounted device, a wearable device, a network device (gNB) in an NR network, a network device in a future evolved PLMN network, or a network device in an NTN network.

By way of example and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a Medium Earth Orbit (MEO) satellite, a geosynchronous Orbit (GEO) satellite, a High Elliptic Orbit (HEO) satellite, and the like. Alternatively, the network device may be a base station installed on land, water, or the like.

In this embodiment, a network device may provide a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

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

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which are not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication of an association relationship. For example, a indicates B, which may indicate that a directly indicates B, e.g., B may be obtained by a; it may also mean that a indicates B indirectly, for example, a indicates C, and B may be obtained by C; it can also mean that there is an association between a and B.

In the description of the embodiments of the present application, the term "correspond" may indicate that there is a direct correspondence or an indirect correspondence between the two, may also indicate that there is an association between the two, and may also indicate and be indicated, configure and configured, and so on.

Unlicensed spectrum is a nationally and regionally divided spectrum available for communication by radio devices, which is generally considered a shared spectrum, i.e., a spectrum may be used by communication devices in different communication systems as long as the regulatory requirements set on the spectrum by countries or regions are met, without requiring a proprietary spectrum license to be applied to the government.

In order for various communication systems using unlicensed spectrum for wireless communication to coexist friendly on the spectrum, some countries or regions stipulate regulatory requirements that must be met using unlicensed spectrum. For example, the communication device follows the principle of "Listen Before Transmit (LBT)", that is, before the communication device performs signal transmission on a channel of an unlicensed spectrum, it needs to perform channel sensing first, and only when the channel sensing result is that the channel is idle, the communication device can perform signal transmission; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot perform signal transmission. In order to ensure fairness, in one transmission, the duration of signal transmission by the communication device using the Channel of the unlicensed spectrum cannot exceed the Maximum Channel Occupancy Time (MCOT).

The method and the device can be applied to the unlicensed spectrum and the licensed spectrum.

HARQ-ACK feedback in NR-U

When the NR system is applied to an unlicensed frequency band, independent networking can be supported, namely, auxiliary services are provided without depending on carriers on the licensed frequency band. In this scenario, after receiving a Physical Downlink Shared Channel (PDSCH) on an unlicensed carrier, the terminal device needs to send HARQ-ACK feedback corresponding to the PDSCH on the unlicensed carrier. The HARQ-ACK feedback information includes ACK information or NACK information, and the HARQ-ACK information may be used to indicate a decoding result of the PDSCH.

In the unlicensed frequency band, HARQ timing indication information (e.g., PDSCH-to-HARQ _ feedback timing indicator) may be included in downlink control information DCI for scheduling PDSCH transmission. The HARQ timing indication information may be used to determine a time domain position of a HARQ-ACK feedback resource (e.g., a PUCCH resource) for transmitting the HARQ-ACK corresponding to the PDSCH, and may also be used to indicate a state where the HARQ-ACK information corresponding to the PDSCH is not fed back first. For example, the preconfigured HARQ timing set includes a Non-numerical (NN) K1 (which may also be referred to as an invalid K1 or a value of K1 is an invalid value, for example, a value of K1 is negative 1) indicating that the invalid resource indicates, and when the HARQ timing indication information indicates the NNK1 in the HARQ timing set, it indicates that a time domain position, for example, a time slot, where the corresponding HARQ-ACK feedback resource is located is temporarily indeterminable.

In the unlicensed frequency band, besides the Dynamic codebook (Dynamic or Type2 (Type 2)) feedback mode of Release 15 (Release 15, R15), an enhanced Dynamic codebook (enhanced Dynamic or enhanced Type2 or eType 2) feedback mode and a single-shot (One-shot) HARQ-ACK feedback (or Type3 (Type 3)) codebook feedback mode are supported.

For one-slot HARQ-ACK feedback, the network device may configure the one-slot HARQ-ACK feedback for the terminal device, and trigger the terminal device to perform the one-slot HARQ-ACK feedback through DCI, for example, DCI format 1 \u1. The One-shot HARQ-ACK feedback includes HARQ-ACK information feedback corresponding to all HARQ processes on all configured carriers in a Physical Uplink Control Channel (PUCCH) group. If the terminal device is configured with One-slot HARQ-ACK feedback, a DCI, for example, DCI format 1 \u1, may include a One-slot HARQ-ACK feedback request information field (One-slot HARQ-ACK request). If the terminal device receives DCI information sent by the network device and a one-slot HARQ-ACK feedback request information field in the DCI information is a preset value, for example, set to 1, the terminal device needs to perform one-slot HARQ-ACK feedback. The DCI may be Downlink grant information, and the DCI may schedule Physical Downlink Shared Channel (PDSCH) transmission or may not schedule PDSCH transmission.

The codebook mode can flexibly feed back HARQ-ACK information corresponding to the scheduled PDSCH on the unlicensed frequency band.

One-shot HARQ-ACK feedback

In the NR-U system, the network device may configure one-shot HARQ-ACK feedback (also referred to as single HARQ-ACK feedback) for the terminal device, and trigger the terminal device to perform the one-shot HARQ-ACK feedback through DCI information, for example, DCI format 1 \u1. And when One-shot HARQ-ACK is fed back, the HARQ-ACK codebook comprises HARQ-ACK information corresponding to all HARQ processes on all configured carriers in One PUCCH group. Specifically, the type 1 may be a one-shot HARQ-ACK feedback carrying a New Data Indicator (NDI), the type2 may be a one-shot HARQ-ACK feedback not carrying an NDI, and the network device may configure, through Radio Resource Control (RRC) signaling, whether the terminal device needs to carry NDI information when performing HARQ-ACK feedback.

It should be noted that, in some scenarios, the carrier and the cell may be the same concept, or the carrier may also be replaced by a cell.

In one-shot HARQ-ACK feedback, for a carrier configured with Code Block Group (CBG) transmission (for example, signaling that a terminal device is provided with maximum Code block group (maxcodeblockackgrouppransportblock) information included in each transport block), a network device may indicate, through RRC signaling (for example, pdsch-HARQ-ACK-oneschfeedbackcbg-r 16), whether the terminal device is to perform CBG feedback when performing the one-shot HARQ-ACK feedback. If the terminal device configures the CBG-based feedback on a certain carrier, the terminal device needs to perform CBG-based feedback when performing one-shot HARQ-ACK feedback on the carrier.

As an example, taking the HARQ scheduling process shown in fig. 2 as an example, one-shot HARQ-ACK feedback of type 1 and type2 is described. Assume that a terminal device is configured with two Component Carriers (CCs), denoted CC1 and CC2, respectively. Both CC1 and CC2 are based on Transport Block (TB) feedback, and one HARQ process on CC1 and CC2 corresponds to 1-bit HARQ-ACK information. As shown in fig. 2, in a time slot n, a terminal device receives PDSCH 1 scheduled by DCI1 through HARQ 4 on CC1, K1=3, a single time =0 (i.e., one-shot HARQ-ACK feedback is not triggered), NDI =1; the terminal device receives PDSCH 2 scheduled by HARQ 5 on CC2, K1=3, single =0, ndi =0, of DCI 2. On time slot n +1, the terminal device receives PDSCH 3 scheduled by HARQ 8 on DCI3 on CC1, K1=2, single time =0,ndi =0. In time slot n +2, the terminal device receives PDSCH 4 scheduled by HARQ 9 on DCI 4 on CC2, K1=1, a single time =1 (i.e., one-shot HARQ-ACK feedback is triggered), and NDI =1. Specifically, a one-shot HARQ-ACK feedback codebook of type 1 may be as shown in a in fig. 2, where HARQ-ACK feedback and NDI feedback for PDSCH 1 are located at bit 9 (9) ^th Bit) and 10 th bit (10) ^th Bit), HARQ-ACK feedback and NDI feedback for PDSCH 3 are located at bit 17 (17) ^th Bit) and 18 th bit (18) ^th Bit), HARQ-ACK feedback and NDI feedback for PDSCH 2 are located at bit 43 (43) ^th Bit) and 44 th bit (44) ^th Bit), HARQ-ACK feedback and NDI feedback for PDSCH 4 are located at bit 51 (51) ^th Bit) and 52 th bit (52) ^th Bits). Specifically, a one-shot HARQ-ACK feedback codebook of type2 may be as shown in B in fig. 2, where HARQ-ACK feedback for PDSCH 1 is located in bit 5 (5) ^th Bit), HARQ-ACK feedback for PDSCH 3 is located at bit 9 (9) ^th Bit), HARQ-ACK feedback for PDSCH 2 is located at bit 22 (22) ^th Bit), HARQ-ACK feedback for PDSCH 4 is located at bit 26 (26) ^th Bits). After the terminal device generates a one-shot HARQ-ACK codebook according to the type 1 or type2 HARQ-ACK codebook generating mode, the one-shot HARQ-ACK codebook can be transmitted through PUCCH resource 1 in time slot n + 3.

It should be understood that, in fig. 2, a single =0 indicates that the one-slot HARQ-ACK feedback request information field in the DCI format is set to 0, i.e., indicates that one-slot feedback is not triggered, and a single =1 indicates that the one-slot HARQ-ACK feedback request information field in the DCI format is set to 1, i.e., indicates that one-slot feedback is triggered. In addition, K1 represents HARQ timing indication information, for example, when the terminal device receives PDSCH 1 scheduled by DCI1 through HARQ 4 in slot n, and K1=3, the terminal device feeds back corresponding HARQ-ACK information in slot n + 3.

Secondary cell dormancy or dormancy behavior indication

In an evolution system of the NR system, a dormant or non-dormant (or referred to as a sleep or desleep) behavior of a secondary cell is indicated by a DCI format is introduced. Specifically, if DCI format 1 _u1 is not used for scheduling PDSCH reception, an existing partial information field in DCI format 1 _u1, which may include at least one of a Modulation and Coding Scheme (MCS) of a first codeword, an NDI of the first codeword, a Redundancy Version (RV) of the first codeword, an HARQ process number, an antenna port field, etc., may be used to indicate sleep or not sleep of a secondary cell, and DCI format 1 _u1 not used for scheduling PDSCH reception may include a Frequency Domain Resource Allocation (FDRA) in DCI format 1 _u1 indicating all 0 or all 1.

As an example, if the terminal device is configured to monitor DCI format 1 \u1, and

if the terminal equipment receives DCI format 1 \u1 using Cell Radio Network Temporary Identity (C-RNTI) or MCS-C-RNTI scrambling code, and

if the DCI format 1 _1does not include a one-slot HARQ-ACK feedback request information field or the DCI format 1 _1includes a one-slot HARQ-ACK feedback request information field that does not trigger a one-slot HARQ-ACK feedback, e.g., the feedback request information field is set to "0", and

if the bits of all the FDRA fields included in the DCI format 1 \u1 are set to 0 when the resource allocation Type is Type 0, or,

if the bits of all the FDRA fields included in the DCI format 1 \u1 are set to 1 when the resource allocation Type is Type 1, or,

if the bits of all FDRA fields included in the DCI format 1 _1are set to 0 or 1 when the resource allocation scheme is dynamic handover,

the terminal device considers that bits in the partial information field in DCI format 1 \u1 are used to indicate that the secondary cell is dormant or not dormant, and that DCI format 1 _u1 is not used to schedule PDSCH reception or to indicate Semi-Persistent Scheduling Physical Downlink Shared Channel (SPS PDSCH) release.

It should be noted that, if DCI format 1 \u1 is used to indicate the secondary cell dormant or non-dormant behavior, and the DCI format 1 \u1 is not used to schedule PDSCH reception or to indicate SPS PDSCH release, when the terminal device is configured to perform feedback according to the type-2 codebook, the terminal device needs to include Acknowledgement (ACK) information corresponding to the DCI format 1 \u1 in the type-2 codebook, and the ACK information may be used to indicate that the terminal device correctly receives the DCI format 1 _u1.

In the NR-U system, if the behavior indicating that the secondary cell is dormant or not dormant using the DCI format is supported, how to process ACK information corresponding to the DCI format indicating that the secondary cell is dormant or not dormant, such as DCI format 1 \u1, when the terminal device is configured with one-shot HARQ-ACK feedback (for example, the terminal device is configured with pdsch-HARQ-ACK-oneshopfeedback-r 16), has not been discussed yet.

Based on the above problem, the present application provides a feedback scheme for a HARQ-ACK codebook, where a terminal device can simultaneously carry feedback information corresponding to a DCI format for indicating a behavior of a secondary cell to sleep or not to sleep and feedback information arranged on N cells based on HARQ process numbers in one HARQ-ACK codebook, so as to optimize communication on a shared spectrum.

The technical solution of the present application is described in detail by specific examples below.

Fig. 3 is a schematic flow chart of a feedback method 200 of an HARQ-ACK codebook according to an embodiment of the present application, and as shown in fig. 3, the method 200 may include at least some of the following:

s210, a network device sends a first DCI format to a terminal device in a first cell, where the first DCI format is used to indicate a sleep state of a secondary cell, and the first DCI format does not schedule physical channel transmission;

s220, the terminal device receives the first DCI format on the first cell;

s230, the terminal device generates a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes at least one of a feedback bit sequence and a first bit sequence arranged based on HARQ process numbers in N cells, where the first bit sequence includes ACK information corresponding to the first DCI format, the N cells include the first cell, and N is a positive integer;

s240, the terminal device sends the first HARQ-ACK codebook to the network device;

and S250, the network equipment receives the first HARQ-ACK codebook sent by the terminal equipment.

It should be noted that, in this embodiment of the present application, the receiving of a certain DCI format by a terminal device may be understood as: and the terminal equipment receives the DCI information of the DCI format. For example, the reception of DCI format 1 \u1 by the terminal device may be understood as: the terminal device receives DCI information of DCI format 1 \u1. The DCI format may be, for example, DCI format 1_1, DCI format 1_2, DCI format 1_0, or the like.

Optionally, in an embodiment of the present application, the first DCI format includes DCI format 1_1. Alternatively, the first DCI format may be DCI format 1 \u1.

Optionally, in this embodiment of the present application, the first DCI format does not schedule physical channel transmission, including: the first DCI format does not schedule PDSCH reception.

It should be noted that N is the number of configured cells or the number of activated cells in one PUCCH group of the terminal device. In addition, in the embodiment of the present application, a cell may also be referred to as a carrier.

Optionally, the secondary cell dormant state includes a secondary cell dormant or non-dormant behavior.

In this embodiment, the terminal device is configured with one-shot HARQ-ACK (one-shot HARQ-ACK) feedback.

It should be noted that the single HARQ-ACK feedback may also be referred to as Type3 (Type-3) codebook feedback.

Optionally, in this embodiment of the present application, the first cell includes a Primary cell (PCell).

Optionally, in this embodiment, the first cell includes a Primary secondary cell (PSCell).

Optionally, in this embodiment of the present application, the feedback bit sequences arranged on the N cells based on the HARQ process numbers include feedback bit sequences arranged on the N cells based on the HARQ process numbers for all HARQ processes, where the arrangement order includes HARQ process numbers first and then the cells, where for all HARQ processes on each of the N cells, the HARQ process numbers are arranged in a descending order, and the N cells are arranged in a descending order according to the cell indexes. For example, suppose N cells include cell 1 and cell 2, and the feedback bit sequence arranged based on the HARQ process number in cell 1 is located before the feedback bit sequence arranged based on the HARQ process number in cell 2 in the feedback bit sequence.

Optionally, in this embodiment of the present application, the number of HARQ processes included in one cell may be configured by the network device, or, if the network device is not configured, the number of HARQ processes included in one cell may be a default value, for example, the default value is 8.

Optionally, in this embodiment of the present application, the N cells include all cells configured in one PUCCH group; or, the N cells include all cells activated in one PUCCH group.

Optionally, the first PDCCH includes a first DCI format (DCI format 1 \u1), or the first DCI format is transmitted over the first PDCCH, bits in a partial information field in the DCI in the first PDCCH are used to indicate secondary cell sleep or no sleep, and the first PDCCH or the DCI format 1 \u1 is not used to schedule PDSCH reception or to indicate SPS PDSCH release.

Optionally, in this embodiment of the present application, the terminal device generates the first HARQ-ACK codebook for a first time unit according to a received second DCI format, where the second DCI format includes single HARQ-ACK feedback request information, and HARQ timing indication information included in the second DCI format indicates the first time unit. Or the first HARQ-ACK codebook is generated for the terminal device for the first time unit based on a second DCI format, where the second DCI format includes single HARQ-ACK feedback request information, and HARQ timing indication information included in the second DCI format indicates the first time unit.

In other words, the step S230 may specifically be: the terminal device generates the first HARQ-ACK codebook for a first time unit according to a received second DCI format, wherein the second DCI format comprises single HARQ-ACK feedback request information, and HARQ timing indication information included in the second DCI format indicates the first time unit.

Specifically, for example, the terminal device receives the second DCI format sent by the network device. That is, the second DCI format may be transmitted by the network device.

It should be noted that, the inclusion of the single HARQ-ACK feedback request information in the second DCI format may be understood as: the single HARQ-ACK feedback request information field included in the second DCI format indicates "1", e.g., single time (one-shot) =1. The absence of the single HARQ-ACK feedback request information in the second DCI format may be understood as: the single HARQ-ACK feedback request information field included in the second DCI format indicates "0", for example, a single time (one-shot) =0, or the single HARQ-ACK feedback request information field is not included in the second DCI format.

Optionally, in some embodiments, in case that the HARQ timing indication information included in the second DCI format indicates the first time unit, the HARQ timing indication information included in the first DCI format also indicates the first time unit. That is to say, the HARQ timing indication information included in the first DCI format and the HARQ timing indication information included in the second DCI format both indicate the first time unit, in this case, a first HARQ-ACK codebook generated for the same uplink feedback resource, for example, a PUCCH resource, needs to include two HARQ-ACK information (a feedback bit sequence and a first bit sequence arranged based on a HARQ process number in N cells). The terminal device may generate the first HARQ-ACK codebook for the first time unit.

Optionally, in other embodiments, in a case that the HARQ timing indication information included in the second DCI format indicates the first time unit, the HARQ timing indication information included in the first DCI format may indicate an invalid value, and the second DCI format is a detected DCI format on a Physical Downlink Control Channel (PDCCH) monitoring opportunity after the first DCI format. That is to say, in the case that the HARQ timing indication information included in the first DCI format indicates an invalid value, if a second DCI format is received after the first DCI format is received, and the HARQ timing indication information included in the second DCI format indicates a first time unit, in this case, two kinds of HARQ-ACK information (a feedback bit sequence and a first bit sequence arranged based on a HARQ process number in N cells) may be included in a first HARQ-ACK codebook generated for an uplink feedback resource, for example, a PUCCH resource in the first time unit. The terminal device may generate the first HARQ-ACK codebook for the first time unit.

Optionally, in some embodiments, in a case that the HARQ timing indication information included in the second DCI format indicates the first time unit, the first DCI format does not include the HARQ timing indication information and the high-layer configuration parameter indicates that the feedback time unit corresponding to the first DCI format includes the first time unit. That is to say, the feedback time unit corresponding to the first DCI format and the feedback time unit indicated by the HARQ timing indication information included in the second DCI format both include the first time unit, and in this case, the first HARQ-ACK codebook generated for the same uplink feedback resource, for example, the PUCCH resource, needs to include two types of HARQ-ACK information (the feedback bit sequence and the first bit sequence arranged based on the HARQ process number in the N cells). The terminal device may generate the first HARQ-ACK codebook for the first time unit.

Optionally, in some implementations, if the first time unit is used to feed back the first bit sequence and the feedback bit sequence arranged based on the HARQ process number on the N cells, for example, HARQ timing indication information included in the first DCI format indicates the first time unit, single HARQ-ACK feedback request information is included in the second DCI format, and HARQ timing indication information included in the second DCI format also indicates the first time unit. In this case, when the terminal device generates the first HARQ-ACK codebook for the first time unit, the first HARQ-ACK codebook may include the feedback bit sequences arranged based on the HARQ process numbers in the N cells but not include the first bit sequence. In this manner, it can be considered that the feedback bit sequence arranged based on the HARQ process number on the N cells has higher priority than the first bit sequence, so that the first bit sequence is not fed back on the first time unit.

Optionally, in some embodiments, when both the feedback time unit corresponding to the first DCI format and the feedback time unit corresponding to the second DCI format include the first time unit, the terminal device sends the first bit sequence through the first uplink resource, for example, PUCCH 1, on the first time unit, and sends the feedback bit sequence arranged based on the HARQ process number on the N cells through the second uplink resource, for example, PUCCH 2, on the first time unit. Optionally, at least one of PUCCH 1 and PUCCH 2 is a short PUCCH. Optionally, PUCCH 1 and PUCCH 2 do not overlap in the time domain.

Optionally, in this embodiment of the present application, if the first HARQ-ACK codebook includes feedback bit sequences and first bit sequences arranged on N cells based on HARQ process numbers. In this case, in the first HARQ-ACK codebook, the feedback bit sequence and the first bit sequence arranged based on the HARQ process number over the N cells may include at least one of a plurality of arrangements as described in examples 1 to 3 below.

Example 1, the feedback bit sequence arranged based on the HARQ process number over the N cells includes the first bit sequence.

Optionally, in example 1, the first DCI format includes indication information of a first HARQ process number, and a position of the first bit sequence in a feedback bit sequence arranged on the N cells based on the HARQ process number is determined according to an index of the first cell and/or the first HARQ process number.

Optionally, in example 1, if the first cell corresponds to a Transport Block (TB) based feedback manner, the first bit sequence includes 1-bit ACK information.

Optionally, the first bit sequence length is determined according to a TB feedback length (e.g., the TB feedback length may be determined according to a higher layer configuration parameter maxnrof codewordsscheduled bydci). The 1-bit ACK information corresponds to a feedback information position of the first codeword. For example, if the TB feedback length is 2, the 1 st bit in the first bit sequence is ACK information, and the 2 nd bit is NACK placeholder.

Optionally, in example 1, if the first cell corresponds to a CBG (Code block group) based feedback manner, the first bit sequence includes 1-bit ACK information or the first bit sequence includes G-bit ACK information, where G denotes a CBG feedback length corresponding to a TB (for example, the CBG feedback length may be determined according to a high-layer configuration parameter maxcodeblock group permeability block) in the first cell, and G is a positive integer.

Optionally, the CBG-based feedback mode corresponding to the first cell includes a case that the first cell is configured with CBG transmission and the first cell is configured with CBG feedback.

Optionally, in example 1, if the first cell corresponds to a CBG feedback mode, the first bit sequence length is determined according to a TB feedback length and a CBG feedback length. The ACK information corresponding to the first DCI format corresponds to the feedback information position of the first codeword. For example, assuming that the TB feedback length is 2 and the cbg feedback length is 4, the first bit sequence includes at least 2 × 4=8 bits. For example, if the first bit sequence includes 1-bit ACK information, the first bit sequence may comprise ACK NACK ]; or if the first bit sequence includes G-bit ACK information, the first bit sequence may include ACK NACK.

Optionally, in example 1, if the terminal device is configured with a feedback manner that includes New Data Indicator (NDI) information, the NDI information included in the first bit sequence is a preset value. For example, the NDI information included in the first bit sequence is set to 0. This is mainly to consider that the NDI indication information is used to indicate the sleeping or non-sleeping behavior of the secondary cell without scheduling data, so that it is more preferable to feed back the preset value rather than feeding back according to the indication information. For example, assuming that the first cell corresponds to a TB-based feedback manner, and the TB feedback length is 2, the first bit sequence includes [ ACK NACK 0].

Optionally, in example 1, if the terminal device is configured with a feedback manner including NDI information, the NDI information included in the first bit sequence is determined according to NDI indication information in the first DCI format.

In either of the two cases, the network device may determine the first bit sequence of the NDI information and the ACK information corresponding to the first DCI format that the terminal device should feed back, so that no ambiguity in understanding may be caused.

Optionally, the configuring, by the terminal device, a feedback manner including the NDI information may include: and the network equipment configures a one-shot HARQ-ACK feedback mode comprising NDI information for the terminal equipment.

Example 2, the first bit sequence precedes the feedback bit sequence arranged based on HARQ process numbers on the N cells.

Example 3, the first bit sequence is located after a feedback bit sequence arranged based on HARQ process numbers on the N cells.

Optionally, in example 2 or example 3, the first bit sequence includes 1-bit ACK information.

For a terminal device configured with SPS PDSCH transmission, the terminal device may receive a DCI format indicating release of SPS PDSCH, where the DCI format indicating release of SPS PDSCH also does not schedule PDSCH reception.

Optionally, in some embodiments, the terminal device receives a third DCI format on a second cell, the third DCI format being used to indicate SPS PDSCH release, the second cell being included in the N cells;

the first HARQ-ACK codebook includes at least one of a feedback bit sequence, the first bit sequence, and a second bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence includes ACK information corresponding to the third DCI format.

Specifically, for example, the terminal device receives the third DCI format sent by the network device on the second cell.

It should be understood that the second cell and the first cell may be the same cell or different cells, which is not limited in this application.

Optionally, if the first HARQ-ACK codebook includes feedback bit sequences arranged based on HARQ process numbers on N cells, a first bit sequence, and a second bit sequence. In this case, the sequence of bits in the first HARQ-ACK codebook includes, but is not limited to, at least one of the following cases:

the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the second bit sequence, wherein the feedback bit sequence arranged on the N cells based on the HARQ process numbers comprises the first bit sequence;

the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number, wherein the feedback bit sequence arranged on the N cells based on the HARQ process number comprises the first bit sequence;

the first bit sequence, the second bit sequence and a feedback bit sequence arranged on the N cells based on the HARQ process number;

the second bit sequence, the first bit sequence and a feedback bit sequence arranged on the N cells based on the HARQ process number;

the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence;

the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the first bit sequence;

the feedback bit sequence, the first bit sequence and the second bit sequence are arranged on the N cells based on the HARQ process numbers;

the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on the HARQ process numbers.

Optionally, if the first HARQ-ACK codebook includes a feedback bit sequence and a second bit sequence arranged based on HARQ process numbers in N cells, and the first HARQ-ACK codebook does not include the first bit sequence. In this case, the sequence of the bits in the first HARQ-ACK codebook includes, but is not limited to, at least one of the following cases:

the feedback bit sequence and the second bit sequence are arranged on the N cells based on the HARQ process numbers;

the second bit sequence, and a feedback bit sequence arranged on the N cells based on the HARQ process number.

Optionally, if the first HARQ-ACK codebook includes feedback bit sequences arranged based on HARQ process numbers in N cells and a first bit sequence, and the first HARQ-ACK codebook does not include the second bit sequence. In this case, the sequence of bits in the first HARQ-ACK codebook includes, but is not limited to, at least one of the following cases:

the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the first bit sequence;

the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.

Optionally, in this embodiment of the application, in a case that HARQ timing indication information included in the second DCI format indicates the first time unit, if HARQ timing indication information included in the third DCI format received by the terminal device also indicates the first time unit, the terminal device generates the first HARQ-ACK codebook for the first time unit according to the second DCI format, where the first HARQ-ACK codebook includes the second bit sequence.

Optionally, under the condition that the HARQ timing indication information included in the second DCI format indicates the first time unit, if the HARQ timing indication information included in the third DCI format received by the terminal device also indicates the first time unit, the terminal device generates the first HARQ-ACK codebook for the first time unit according to the second DCI format, where the first HARQ-ACK codebook does not include the second bit sequence. In this way, it can be considered that the feedback bit sequence arranged based on the HARQ process number on the N cells has a higher priority than the second bit sequence, so that the second bit sequence is not fed back on the first time unit.

Optionally, the step S230 may specifically be: the terminal device generates the first HARQ-ACK codebook for the first time unit according to the received second DCI format, where the second DCI format includes single HARQ-ACK feedback request information, HARQ timing indication information included in the second DCI format indicates the first time unit, the first HARQ-ACK codebook includes at least one of a feedback bit sequence, a first bit sequence, and a second bit sequence arranged on N cells based on HARQ process numbers, where the second bit sequence includes ACK information corresponding to the third DCI format, and the HARQ timing indication information included in the third DCI format indicates the first time unit.

Optionally, the second bit sequence includes 1-bit ACK information.

It should be noted that, in a shared spectrum scenario, before transmitting a signal, a communication device needs to perform a channel access process or perform channel sensing or channel detection, and if a spectrum is currently occupied, signal transmission cannot be performed, so that a situation that transmission cannot be performed may occur in the shared spectrum scenario.

Therefore, optionally, on the shared spectrum, the step S240 may include: the terminal equipment sends the first HARQ-ACK codebook to the network equipment after acquiring the channel use right of a first time unit; or after the channel access is successful, the terminal device sends the first HARQ-ACK codebook to the network device.

Therefore, in this embodiment of the present application, the terminal device generates the first HARQ-ACK codebook, and the first HARQ-ACK codebook includes at least one of the feedback bit sequence and the first bit sequence arranged on the N cells based on the HARQ process number, that is, the terminal device can simultaneously carry, in one HARQ-ACK codebook, feedback information corresponding to a DCI format for indicating a behavior of a secondary cell sleeping or not sleeping and feedback information arranged on the N cells based on the HARQ process number, so as to optimize communication on the shared spectrum.

Further, the embodiment of the application can support one-shot HARQ-ACK feedback, ACK information corresponding to DCI for indicating the secondary cell sleep or non-sleep behavior, and ACK information corresponding to DCI released by SPS PDSCH scheduling to be transmitted in the same time unit. Moreover, under the condition that the terminal device is configured with the feedback of the CBG, the ambiguity of understanding the HARQ-ACK feedback codebook between the network device and the terminal device does not occur by using the feedback mode in the present application.

The following details the feedback method 200 of the HARQ-ACK codebook in the present application by embodiments 1 and 2.

Embodiment 1, as shown in fig. 4, it is assumed that a terminal device is configured with a cell 1 (e.g., a primary cell (PCell)) and includes only the cell 1 in a PUCCH group, and the terminal device is configured with, for example, 8 HARQ processes on the cell 1. The terminal equipment receives PDSCH 1 scheduled by the first DCI through HARQ process number 2 at time slot n-3, wherein K1=3, namely HARQ-ACK information corresponding to the first DCI is fed back at time slot n; receiving second DCI at time slot n-2, where the second DCI does not schedule PDSCH transmission, and the second DCI is used to indicate a sleep or non-sleep behavior of the secondary cell, where optionally, HARQ process number indication information included in the second DCI indicates HARQ process number 4, and K1=2, that is, HARQ-ACK information corresponding to the second DCI is fed back at time slot n; and receiving PDSCH 2 scheduled by the third DCI through HARQ process number 5 at time slot n-1, wherein K1=1, namely feeding back HARQ-ACK information corresponding to the third DCI at time slot n. The first DCI, the second DCI, and the third DCI may be the same DCI format, for example, all DCI formats 1 \ u 1, or may be different DCI formats, for example, the second DCI is DCI format 1 \ u 1, and the third DCI is DCI format 1 \ u 2, which is not limited in this application. In embodiment 1, a terminal device generates a first HARQ-ACK codebook to be transmitted on slot n.

Optionally, in embodiment 1, the first HARQ-ACK codebook includes a first bit sequence and a feedback bit sequence arranged on N cells based on HARQ process numbers, where the N cells include cell 1, HARQ-ACK information corresponding to a HARQ process that is not scheduled for PDSCH transmission may be occupied by NACK information, and it is assumed that the maximum number of TBs corresponding to one HARQ process is 1 (or TB feedback length is 1).

Alternatively, in embodiment 1, the first HARQ-ACK codebook may specifically be as described in cases 1 to 7.

Case 1, as shown in the first row of table 1, in the first HARQ-ACK codebook, a first bit sequence is located before a feedback bit sequence arranged based on HARQ process numbers on N cells.

TABLE 1

Case 2, as shown in the first row of table 2, in the first HARQ-ACK codebook, a first bit sequence is located after a feedback bit sequence arranged based on HARQ process numbers on N cells.

TABLE 2

In case 3, in the first HARQ-ACK codebook, the position of the first bit sequence in the first HARQ-ACK codebook is determined according to the HARQ process number corresponding to the first bit sequence, as shown in the first row in table 3, if the HARQ 4 corresponding to the first bit sequence, the position of the first bit sequence in the first HARQ-ACK codebook corresponds to the HARQ 4.

TABLE 3

In case 4, in the first HARQ-ACK codebook, if NDI feedback is configured, the terminal device feeds back the corresponding NDI value as the preset value, for example, NDI is 0, when feeding back the first bit sequence, as shown in table 4.

TABLE 4

In case 5, in the first HARQ-ACK codebook, if the cell 1 is configured with CBG feedback, assuming that the CBG feedback length is 4, the terminal device performs feedback according to the CBG length when feeding back the first bit sequence, as shown in table 5, or as shown in table 6.

TABLE 5

TABLE 6

In case 6, the first HARQ-ACK codebook does not include the feedback bit sequences arranged based on the HARQ process numbers in the N cells, and the first HARQ-ACK codebook includes the first bit sequence.

In case 7, the first HARQ-ACK codebook does not include the first bit sequence, and the first HARQ-ACK codebook includes feedback bit sequences arranged based on HARQ process numbers in N cells.

Embodiment 2, as shown in fig. 5, it is assumed that a terminal device is configured with a cell 1 (e.g., a primary cell (PCell)) and includes only the cell 1 in a PUCCH group, and the terminal device is configured with, for example, 8 HARQ processes on the cell 1. The terminal equipment receives a first DCI on a time slot n-3 for indicating to release the SPS PDSCH, and the first DCI does not schedule PDSCH transmission, wherein optionally, HARQ process number indication information included in the first DCI indicates a HARQ process number of 2, and K1=3, namely HARQ-ACK information corresponding to the first DCI is fed back on the time slot n; receiving second DCI at time slot n-2, where the second DCI does not schedule PDSCH transmission, and the second DCI is used to indicate a sleep or non-sleep behavior of the secondary cell, where optionally, HARQ process number indication information included in the second DCI indicates HARQ process number 4, and K1=2, that is, HARQ-ACK information corresponding to the second DCI is fed back at time slot n; and receiving PDSCH 2 scheduled by the third DCI through HARQ process number 5 at the time slot n-1, wherein K1=1, namely feeding back HARQ-ACK information corresponding to the third DCI at the time slot n. The first DCI, the second DCI, and the third DCI may be the same DCI format or different DCI formats, which is not limited in this application.

Optionally, in embodiment 2, the first HARQ-ACK codebook includes at least one of a feedback bit sequence, a first bit sequence, and a second bit sequence, which are arranged on the N cells based on HARQ process numbers, where the first bit sequence includes ACK information corresponding to the first DCI format, and the second bit sequence includes ACK information corresponding to the third DCI format. The N cells include cell 1, HARQ-ACK information corresponding to HARQ processes not scheduled for PDSCH transmission may be occupied by NACK information, and it is assumed that the maximum TB number corresponding to one HARQ process is 1 (or the TB feedback length is 1).

Alternatively, in embodiment 2, the first HARQ-ACK codebook may have the same structure as described in case a to case n.

In case a, as shown in the first row of table 7, the bit sequence in the first HARQ-ACK codebook is arranged in the order: the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence.

TABLE 7

In case b, as shown in the first row of table 8, the bit sequence in the first HARQ-ACK codebook is arranged in the order: the first bit sequence, the second bit sequence, and a feedback bit sequence arranged on the N cells based on the HARQ process number.

TABLE 8

In case c, as shown in the first row of table 9, the bit sequence in the first HARQ-ACK codebook is arranged in the following order: the feedback bit sequence, the first bit sequence and the second bit sequence are arranged on the N cells based on the HARQ process numbers.

TABLE 9

In case d, as shown in the first row of table 10, the bit sequence in the first HARQ-ACK codebook is arranged in the order: the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on the HARQ process numbers.

TABLE 10

In case e, as shown in the first row in table 11, the bit sequence in the first HARQ-ACK codebook is arranged in the following order: the second bit sequence, the first bit sequence, and a feedback bit sequence arranged on the N cells based on HARQ process numbers.

TABLE 11

In case f, as shown in the first row in table 12, the bit sequence in the first HARQ-ACK codebook is arranged in the order: the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the first bit sequence.

TABLE 12

Case g, as shown in the first row of table 13, the bit sequence in the first HARQ-ACK codebook is arranged in the order: the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the second bit sequence, wherein the feedback bit sequence arranged on the N cells based on the HARQ process numbers comprises the first bit sequence.

Watch 13

In case h, as shown in the first row in table 14, the bit sequence in the first HARQ-ACK codebook is arranged in the order: the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number, wherein the feedback bit sequence arranged on the N cells based on the HARQ process number comprises the first bit sequence.

TABLE 14

In case i, as shown in the first row of table 15, the bit sequence in the first HARQ-ACK codebook is arranged in the order: and feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence and the second bit sequence.

Watch 15

In case j, the first HARQ-ACK codebook includes feedback bit sequences arranged based on HARQ process numbers in N cells and a first bit sequence, the first HARQ-ACK codebook does not include the second bit sequence, and an arrangement order of the bit sequences in the first HARQ-ACK codebook may be: and feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence.

In case k, the first HARQ-ACK codebook includes feedback bit sequences arranged based on HARQ process numbers in N cells and a first bit sequence, the first HARQ-ACK codebook does not include the second bit sequence, and an arrangement order of the bit sequences in the first HARQ-ACK codebook may be: the feedback bit sequence arranged on the N cells based on the HARQ process number and the first bit sequence.

Case l, the first HARQ-ACK codebook includes feedback bit sequences arranged based on HARQ process numbers on N cells and a first bit sequence, the first HARQ-ACK codebook does not include the second bit sequence, and an arrangement order of the bit sequences in the first HARQ-ACK codebook may be: the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.

In case m, the first HARQ-ACK codebook includes a feedback bit sequence and a second bit sequence arranged based on HARQ process numbers in N cells, and the first HARQ-ACK codebook does not include the first bit sequence, and an arrangement order of the bit sequences in the first HARQ-ACK codebook may be: the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the second bit sequence.

In case N, the first HARQ-ACK codebook includes a feedback bit sequence and a second bit sequence arranged based on HARQ process numbers in N cells, and the first HARQ-ACK codebook does not include the first bit sequence, and an arrangement order of the bit sequences in the first HARQ-ACK codebook may be: the second bit sequence, and a feedback bit sequence arranged on the N cells based on the HARQ process number.

In the NR-U system, if the terminal device is configured with SPS PDSCH transmission and the terminal device is configured with one-shot HARQ-ACK feedback (for example, the terminal device is configured with PDSCH-HARQ-ACK-oneshot feedback-r 16), another possible implementation manner is that the network device avoids, through scheduling, that the DCI format indicating release of the SPS PDSCH, for example, the third DCI format, and the DCI format used for triggering one-shot HARQ-ACK feedback, for example, the second DCI format, indicate the same feedback time unit (or avoid pointing to the same PUCCH/PUSCH resource), so that the terminal device can avoid feeding back ACK information corresponding to the third DCI format (i.e., the second bit sequence) and HARQ-ACK information corresponding to the second DCI format (i.e., the feedback bit sequence arranged based on the HARQ process number on the N cells) together. In this case, if the terminal device is also configured with an enhanced Dynamic codebook (enhanced Dynamic or enhanced Type2 or eType 2) feedback manner, how to perform feedback of the second bit sequence in this case is a problem to be solved. Based on the problem, the present application provides another feedback scheme of the HARQ-ACK codebook, so that the terminal device can correctly perform feedback of the second bit sequence or feedback of the enhanced dynamic codebook under the conditions of SPS PDSCH transmission, one-shot HARQ-ACK feedback and enhanced dynamic codebook feedback, thereby optimizing communication on the shared spectrum.

It should be understood that, when enhanced dynamic codebook feedback and one-shot HARQ-ACK feedback are configured, a Downlink Assignment Index (DAI) information, a New Feedback Indicator (NFI) information, a group identifier, and a one-shot HARQ-ACK feedback request information field may be included in the DCI format. Wherein, the DAI comprises a counting Downlink Assignment Index (C-DAI) and/or a Total Downlink Assignment Index (T-DAI). The terminal device may generate a dynamic codebook based on the C-DAI and/or T-DAI values in the DCI.

Scheme 1

In some possible implementations, the HARQ-ACK codebook generated according to the enhanced dynamic codebook feedback approach does not include the second bit sequence.

Optionally, the terminal device does not generate the HARQ-ACK codebook to be fed back, which includes the second bit sequence, according to the group identifier and/or the NFI information in the third DCI format.

Optionally, C-DAIs in the third DCI format are not counted within a group, wherein the group is determined according to a group identity included in the third DCI format.

Optionally, the terminal device expects a received C-DAI =1 in the third DCI format.

By way of example and not limitation, it is assumed that HARQ-ACK information feedback on a carrier is according to TB feedback, where the maximum number of TBs included in one HARQ process is 1, or one HARQ process corresponds to 1-bit HARQ-ACK information.

As shown in fig. 11, if a Group ID (GID) in DCI1 received by a terminal device at a time slot n-3 is 0 and C-DAI =1, the DCI1 schedules PDSCH 1, and K1=3 in the DCI1, that is, HARQ-ACK information corresponding to DCI1 is fed back at time slot n; the GID in DCI2 received at time slot n-2 is 0 and C-DAI =1, PDSCH transmission is not scheduled by DCI2, DCI2 is used to instruct to release SPS PDSCH, where the second bit sequence corresponding to DCI2 includes ACK information, and K1=3 in the DCI2, that is, HARQ-ACK information corresponding to DCI2 is fed back at time slot n + 1; GID in DCI3 received at slot n-1 is 0 and C-DAI =2, the DCI3 schedules PDSCH 2, and K1=1 in the DCI3, that is, HARQ-ACK information corresponding to DCI3 is fed back at slot n. That is, in this example, the feedback time unit indicated by the HARQ timing indication information (K1 = 3) included in DCI1 is slot n, the feedback time unit indicated by the HARQ timing indication information (K1 = 3) included in DCI2 is slot n +1, and the feedback time unit indicated by the HARQ timing indication information (K1 = 1) included in DCI3 is also slot n. Or, the network device needs to avoid indicating the same feedback time unit (or avoid pointing to the same PUCCH/PUSCH resource) by scheduling DCI2 indicating to release SPS PDSCH and DCI, e.g., DCI1 and DCI3, scheduling PDSCH reception.

In the example of fig. 11, when the terminal device generates the HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1), the HARQ-ACK codebook includes HARQ-ACK information corresponding to PDSCH 1 and PDSCH 2. When terminal equipment generates a HARQ-ACK codebook to be transmitted on slot n +1 (or PUCCH 2), the HARQ-ACK codebook comprises ACK information corresponding to DCI 2.

Scheme 2

In other possible implementations, the HARQ-ACK codebook generated according to the enhanced dynamic codebook feedback manner includes a second bit sequence.

Optionally, the terminal device generates a to-be-fed HARQ-ACK codebook including a second bit sequence for a first feedback resource (e.g., a PUCCH resource or a PUSCH resource) according to the group identifier and/or the NFI information in the third DCI format.

Optionally, the C-DAI in the third DCI format is counted within a group, wherein the group is determined according to a group identifier included in the third DCI format.

Optionally, if the terminal device determines that the to-be-fed back HARQ-ACK codebook generated for the first feedback resource includes the second bit sequence, the terminal device determines that the to-be-fed back codebook is an HARQ-ACK codebook generated according to an enhanced dynamic codebook feedback manner, or the terminal device does not expect the one-shot HARQ-ACK feedback request information field in the DCI format corresponding to the first feedback resource to trigger one-shot HARQ-ACK feedback, or the terminal device ignores the information indication of the one-shot HARQ-ACK feedback request information field in the DCI format corresponding to the first feedback resource.

By way of example and not limitation, it is assumed that HARQ-ACK information feedback on a carrier is according to TB feedback, where the maximum number of TBs included in one HARQ process is 1, or one HARQ process corresponds to 1-bit HARQ-ACK information.

As shown in fig. 12, a terminal device receives DCI1 with a Group ID (GID) of 0 and C-DAI =1 in slot n-3, where the DCI1 schedules PDSCH 1, and K1=3 in the DCI1, that is, HARQ-ACK information corresponding to DCI1 is fed back in slot n; the GID in DCI2 received at time slot n-2 is 0 and C-DAI =2, PDSCH transmission is not scheduled by DCI2, DCI2 is used to instruct to release SPS PDSCH, where the second bit sequence corresponding to DCI2 includes ACK information, and K1=2 in the DCI2, that is, HARQ-ACK information corresponding to DCI2 is fed back at time slot n; GID in DCI3 received at slot n-1 is 0 and C-DAI =3, the DCI3 schedules PDSCH 2, and K1=1 in the DCI3, that is, HARQ-ACK information corresponding to DCI3 is fed back at slot n. In an example, the feedback time unit indicated by the HARQ timing indication information (K1 = 3) included in the DCI1 is slot n, the feedback time unit indicated by the HARQ timing indication information (K1 = 2) included in the DCI2 is also slot n, and the feedback time unit indicated by the HARQ timing indication information (K1 = 1) included in the DCI3 is also slot n.

Optionally, when the terminal device generates the HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1), the terminal device does not expect the one-slot HARQ-ACK feedback request information field in DCI3 to trigger the one-slot HARQ-ACK feedback, or the terminal device expects the one-slot HARQ-ACK feedback request information field in DCI3 not to trigger the one-slot HARQ-ACK feedback, or the terminal device ignores the information indication of the one-slot HARQ-ACK feedback request information field in DCI 3.

Optionally, when the terminal device generates the HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1), the terminal device does not expect the one-slot HARQ-ACK feedback request information field in DCI1 and DCI3 to trigger the one-slot HARQ-ACK feedback, or the terminal device expects the one-slot HARQ-ACK feedback request information field in DCI1 and DCI3 not to trigger the one-slot HARQ-ACK feedback, or the terminal device ignores the information indication of the one-slot HARQ-ACK feedback request information field in DCI1 and DCI 3.

The HARQ-ACK codebook to be transmitted on slot n (or PUCCH 1) generated by the terminal device may be as shown in table 16.

TABLE 16

Optionally, even if the terminal device receives the DCI3 whose one-shot HARQ-ACK feedback request information field triggers one-shot HARQ-ACK feedback, the terminal device still generates the HARQ-ACK codebook according to the enhanced dynamic codebook feedback manner, that is, the HARQ-ACK codebook generated in this case may also be as shown in table 16.

It should be understood that the network device may also avoid, by scheduling, that a DCI format indicating a secondary cell sleep state, for example, a first DCI format, and a DCI format for triggering one-shot HARQ-ACK feedback, for example, a second DCI format, indicate the same feedback time unit (or avoid pointing to the same PUCCH/PUSCH resource), so that the terminal device may avoid feeding back ACK information corresponding to the first DCI format (i.e., the first bit sequence) together with HARQ-ACK information corresponding to the second DCI format (i.e., the feedback bit sequence arranged based on the HARQ process number in the N cells). The problem and solution in this case may be consistent with the feedback case of the second bit sequence, and thus will not be described in detail.

Method embodiments of the present application are described in detail above in conjunction with fig. 3-5, and 11-12, and apparatus embodiments of the present application are described in detail below in conjunction with fig. 6-10, it being understood that apparatus embodiments correspond to method embodiments and similar descriptions may refer to method embodiments.

Fig. 6 shows a schematic block diagram of a terminal device 300 according to an embodiment of the application. As shown in fig. 6, the terminal device 300 includes:

a communication unit 310, configured to receive a first DCI format on a first cell, where the first DCI format is used to indicate a secondary cell dormant state, and the first DCI format does not schedule physical channel transmission;

a processing unit 320, configured to generate a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes at least one of a feedback bit sequence and a first bit sequence that are arranged on N cells based on a HARQ process number, where the first bit sequence includes ACK information corresponding to the first DCI format, the N cells include the first cell, and N is a positive integer.

Optionally, the feedback bit sequence arranged based on the HARQ process number in the N cells includes the first bit sequence.

Optionally, the first DCI format includes indication information of a first HARQ process number, and a position of the first bit sequence in a feedback bit sequence arranged on the N cells based on the HARQ process number is determined according to an index of the first cell and/or the first HARQ process number.

Optionally, if the first cell corresponds to a feedback mode based on a transport block TB, the first bit sequence includes 1 bit ACK information.

Optionally, if the first cell corresponds to a CBG-based feedback manner, the first bit sequence includes 1-bit ACK information or the first bit sequence includes G-bit ACK information, where G denotes a CBG feedback length corresponding to a TB in the first cell, and the G is a positive integer.

Optionally, if the terminal device is configured with a feedback manner including the NDI information, the NDI information included in the first bit sequence is a preset value.

Optionally, the first HARQ-ACK codebook comprises feedback bit sequences arranged based on HARQ process numbers over N cells and the first bit sequence, wherein,

the first bit sequence is positioned in front of the feedback bit sequence arranged on the N cells based on the HARQ process number; or the like, or, alternatively,

the first bit sequence is located after the feedback bit sequence arranged based on the HARQ process number on the N cells.

Optionally, the first bit sequence includes 1-bit ACK information.

Optionally, the feedback bit sequences arranged based on the HARQ process numbers in the N cells include feedback bit sequences arranged based on the HARQ process numbers in all HARQ processes in the N cells, and the arrangement order includes HARQ process numbers first and then cell, where for all HARQ processes in each of the N cells, the HARQ process numbers are arranged in descending order, and the N cells are arranged in descending order according to the cell indexes.

Optionally, the N cells include all cells configured in one PUCCH group; or, the N cells include all cells activated in one PUCCH group.

Optionally, the generating, by the terminal device, a first HARQ-ACK codebook includes:

the terminal equipment generates the first HARQ-ACK codebook for a first time unit according to a received second DCI format, wherein the second DCI format comprises single-time HARQ-ACK feedback request information, and HARQ time sequence indication information in the second DCI format indicates the first time unit.

Optionally, HARQ timing indication information included in the first DCI format indicates the first time unit; or the like, or, alternatively,

the HARQ timing indication information included in the first DCI format indicates an invalid value, and the second DCI format is a DCI format detected on a PDCCH monitoring opportunity after the first DCI format.

Optionally, the communication unit 310 is further configured to receive a third DCI format on a second cell, where the third DCI format is used to indicate SPS PDSCH release, and the N cells include the second cell;

the first HARQ-ACK codebook includes at least one of a feedback bit sequence, the first bit sequence, and a second bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence includes ACK information corresponding to the third DCI format.

Optionally, the first HARQ-ACK codebook includes a feedback bit sequence arranged based on HARQ process numbers in the N cells, the first bit sequence, and the second bit sequence, and an arrangement order of the bit sequences in the first HARQ-ACK codebook includes at least one of the following situations:

the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the second bit sequence, wherein the feedback bit sequence arranged on the N cells based on the HARQ process numbers comprises the first bit sequence;

the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number, wherein the feedback bit sequence arranged on the N cells based on the HARQ process number comprises the first bit sequence;

the first bit sequence, the second bit sequence, and a feedback bit sequence arranged on the N cells based on the HARQ process numbers;

the second bit sequence, the first bit sequence and a feedback bit sequence arranged on the N cells based on the HARQ process number;

the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence;

the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the first bit sequence;

the feedback bit sequence, the first bit sequence and the second bit sequence are arranged on the N cells based on the HARQ process numbers;

the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on the HARQ process numbers.

Optionally, the first HARQ-ACK codebook includes a feedback bit sequence and the second bit sequence arranged based on HARQ process numbers in the N cells, and the first HARQ-ACK codebook does not include the first bit sequence, and an arrangement order of bit sequences in the first HARQ-ACK codebook includes at least one of the following cases:

the feedback bit sequence arranged on the N cells based on the HARQ process number and the second bit sequence;

the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process numbers.

Optionally, the first HARQ-ACK codebook includes a feedback bit sequence arranged based on HARQ process numbers in the N cells and the first bit sequence, and the first HARQ-ACK codebook does not include the second bit sequence, and an arrangement order of bit sequences in the first HARQ-ACK codebook includes at least one of the following cases:

feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the first bit sequence;

the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.

Optionally, the processing unit 320 is specifically configured to:

generating the first HARQ-ACK codebook for a first time unit according to a received third DCI format, wherein,

the HARQ timing indication information included in the third DCI format indicates the first time unit.

Optionally, the second bit sequence comprises 1 bit ACK information.

Optionally, the first DCI format includes DCI format 1_1.

Optionally, the terminal device is configured with a single HARQ-ACK feedback.

Optionally, the secondary cell dormant state includes a secondary cell dormant or non-dormant behavior.

Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to a terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing a corresponding flow of the terminal device in the method 200 shown in fig. 3, and are not described herein again for brevity.

Fig. 7 shows a schematic block diagram of a network device 400 according to an embodiment of the application. As shown in fig. 7, the network device 400 includes:

a communication unit 410, configured to send, to a terminal device, a first DCI format on a first cell, where the first DCI format is used to indicate a secondary cell dormant state, and the first DCI format does not schedule physical channel transmission;

the communication unit is further configured to receive a first HARQ-ACK codebook sent by the terminal device, where the first HARQ-ACK codebook includes at least one of a feedback bit sequence and a first bit sequence that are arranged based on HARQ process numbers in N cells, where the first bit sequence includes ACK information corresponding to the first DCI format, the N cells include the first cell, and N is a positive integer.

Optionally, the feedback bit sequence arranged based on the HARQ process number in the N cells includes the first bit sequence.

Optionally, the first DCI format includes indication information of a first HARQ process number, and a position of the first bit sequence in a feedback bit sequence arranged on the N cells based on the HARQ process number is determined according to an index of the first cell and/or the first HARQ process number.

Optionally, if the first cell corresponds to a feedback mode based on a transport block TB, the first bit sequence includes 1 bit ACK information.

Optionally, if the first cell corresponds to a CBG-based feedback manner, the first bit sequence includes 1-bit ACK information or the first bit sequence includes G-bit ACK information, where G indicates a CBG feedback length corresponding to a TB in the first cell, and G is a positive integer.

Optionally, if the network device configures a feedback manner including new data indication NDI information for the terminal device, the NDI information included in the first bit sequence is a preset value.

Optionally, the first HARQ-ACK codebook comprises feedback bit sequences arranged based on HARQ process numbers over N cells and the first bit sequence, wherein,

the first bit sequence is positioned in front of the feedback bit sequence arranged on the N cells based on the HARQ process number; or the like, or a combination thereof,

the first bit sequence is located after the feedback bit sequence arranged based on the HARQ process number on the N cells.

Optionally, the first bit sequence includes 1-bit ACK information.

Optionally, the feedback bit sequences arranged based on the HARQ process numbers in the N cells include feedback bit sequences arranged based on the HARQ process numbers in all HARQ processes in the N cells, and the arrangement order includes HARQ process numbers first and then cell, where for all HARQ processes in each of the N cells, the HARQ process numbers are arranged in descending order, and the N cells are arranged in descending order according to the cell indexes.

Optionally, the N cells include all cells configured in one PUCCH group; or, the N cells include all cells activated in one PUCCH group.

Optionally, the first HARQ-ACK codebook is generated for a first time unit by the terminal device based on a second DCI format, where the second DCI format includes single HARQ-ACK feedback request information, and HARQ timing indication information included in the second DCI format indicates the first time unit.

Optionally, HARQ timing indication information included in the first DCI format indicates the first time unit; or the like, or, alternatively,

the HARQ timing indication information included in the first DCI format indicates an invalid value, and the second DCI format is a DCI format detected on a PDCCH monitoring opportunity after the first DCI format.

Optionally, the communication unit 410 is further configured to transmit a third DCI format to the terminal device on a second cell, where the third DCI format is used to indicate SPS PDSCH release, and the N cells include the second cell;

the first HARQ-ACK codebook includes at least one of a feedback bit sequence, the first bit sequence, and a second bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence includes ACK information corresponding to the third DCI format.

Optionally, the first HARQ-ACK codebook includes a feedback bit sequence arranged based on HARQ process numbers in the N cells, the first bit sequence, and the second bit sequence, and an arrangement order of the bit sequences in the first HARQ-ACK codebook includes at least one of the following situations:

the feedback bit sequence arranged on the N cells based on the HARQ process number and the second bit sequence, wherein the feedback bit sequence arranged on the N cells based on the HARQ process number comprises the first bit sequence;

the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequence arranged on the N cells based on the HARQ process numbers comprises the first bit sequence;

the first bit sequence, the second bit sequence and a feedback bit sequence arranged on the N cells based on the HARQ process number;

the second bit sequence, the first bit sequence and a feedback bit sequence arranged on the N cells based on the HARQ process number;

the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence;

the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the first bit sequence;

the feedback bit sequence, the first bit sequence and the second bit sequence are arranged on the N cells based on the HARQ process numbers;

the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on the HARQ process numbers.

Optionally, the first HARQ-ACK codebook includes a feedback bit sequence and the second bit sequence arranged based on HARQ process numbers in the N cells, and the first HARQ-ACK codebook does not include the first bit sequence, and an arrangement order of bit sequences in the first HARQ-ACK codebook includes at least one of the following situations:

the feedback bit sequence arranged on the N cells based on the HARQ process number and the second bit sequence;

the second bit sequence, and a feedback bit sequence arranged on the N cells based on the HARQ process number.

Optionally, the first HARQ-ACK codebook includes a feedback bit sequence arranged based on HARQ process numbers in the N cells and the first bit sequence, and the first HARQ-ACK codebook does not include the second bit sequence, and an arrangement order of bit sequences in the first HARQ-ACK codebook includes at least one of the following situations:

feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the first bit sequence;

the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process numbers.

Optionally, the first HARQ-ACK codebook is generated for a first time unit by the terminal device based on a third DCI format, where HARQ timing indication information included in the third DCI format indicates the first time unit.

Optionally, the second bit sequence comprises 1 bit ACK information.

Optionally, the first DCI format includes DCI format 1_1.

Optionally, the network device configures a single HARQ-ACK feedback for the terminal device.

Optionally, the secondary cell dormant state includes a secondary cell dormant or non-dormant behavior.

Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the network device 400 according to the embodiment of the present application may correspond to a network device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 400 are respectively for implementing corresponding flows of the network device in the method 200 shown in fig. 3, and are not described herein again for brevity.

Fig. 8 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application. The communication device 500 shown in fig. 8 comprises a processor 510, and the processor 510 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, the communication device 500 may further include a memory 520. From the memory 520, the processor 510 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 520 may be a separate device from the processor 510, or may be integrated into the processor 510.

Optionally, as shown in fig. 8, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 530 may include a transmitter and a receiver, among others. The transceiver 530 may further include one or more antennas.

Optionally, the communication device 500 may specifically be a network device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 500 may specifically be a mobile terminal/terminal device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 9 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 600 shown in fig. 9 includes a processor 610, and the processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the apparatus 600 may further include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, the apparatus 600 may further comprise an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the apparatus 600 may further comprise an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and may particularly output information or data to the other devices or chips.

Optionally, the apparatus may be applied to the network device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described herein again.

Optionally, the apparatus may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the apparatus may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, it may be a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 10 is a schematic block diagram of a communication system 700 according to an embodiment of the present application. As shown in fig. 10, the communication system 700 includes a terminal device 710 and a network device 720.

The terminal device 710 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 720 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, which is not described herein again.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. With regard to such understanding, the technical solutions of the present application may be essentially implemented or contributed to by the prior art, or may be implemented in a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (94)

1. A feedback method of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook is characterized by comprising the following steps of:

   the terminal equipment receives a first Downlink Control Information (DCI) format on a first cell, wherein the first DCI format is used for indicating a sleep state of a secondary cell, and physical channel transmission is not scheduled by the first DCI format;

   the terminal equipment generates a first HARQ-ACK codebook, wherein the first HARQ-ACK codebook comprises at least one of a feedback bit sequence and a first bit sequence which are arranged on N cells based on HARQ process numbers, the first bit sequence comprises acknowledgement ACK information corresponding to the first DCI format, the N cells comprise the first cell, and N is a positive integer.
2. The method of claim 1, wherein the first bit sequence is included in the feedback bit sequences arranged over the N cells based on HARQ process numbers.
3. The method of claim 2, wherein indication information of a first HARQ process number is included in the first DCI format, and a position of the first bit sequence in a feedback bit sequence arranged based on HARQ process numbers on the N cells is determined according to an index of the first cell and/or the first HARQ process number.
4. The method according to claim 2 or 3, wherein the first bit sequence comprises 1 bit ACK information if the first cell corresponds to a transport block TB based feedback mode.
5. The method of claim 2 or 3, wherein the first bit sequence comprises 1-bit ACK information or the first bit sequence comprises G-bit ACK information if the first cell corresponds to a Code Block Group (CBG) -based feedback mode, wherein G represents a CBG feedback length corresponding to a previous TB in the first cell, and G is a positive integer.
6. The method according to any of claims 2 to 5, wherein the NDI information included in the first bit sequence is a predetermined value if the terminal device is configured with a feedback mode including New Data Indication (NDI) information.
7. The method of claim 1, wherein the first HARQ-ACK codebook comprises a feedback bit sequence and the first bit sequence arranged based on HARQ process numbers over N cells, wherein,

   the first bit sequence is positioned in front of a feedback bit sequence arranged on the N cells based on HARQ process numbers; or the like, or a combination thereof,

   the first bit sequence is located after a feedback bit sequence arranged based on HARQ process numbers on the N cells.
8. The method of claim 7, wherein the first sequence of bits includes 1-bit ACK information.
9. The method according to any of claims 1 to 8, wherein the feedback bit sequences arranged based on HARQ process numbers over the N cells comprise feedback bit sequences arranged based on HARQ process numbers for all HARQ processes over the N cells, the arrangement order comprising HARQ process number first and cell last, wherein for all HARQ processes over each of the N cells arranged in HARQ process number order from small to large, the N cells are arranged in cell index order from small to large.
10. The method according to any of claims 1 to 9, wherein the N cells comprise all cells configured in one physical uplink control channel, PUCCH, group; or, the N cells include all cells activated in one PUCCH group.
11. The method of any of claims 1 to 10, wherein the terminal device generates a first HARQ-ACK codebook comprising:

    and the terminal equipment generates the first HARQ-ACK codebook for a first time unit according to a received second DCI format, wherein the second DCI format comprises single HARQ-ACK feedback request information, and HARQ timing indication information in the second DCI format indicates the first time unit.
12. The method of claim 11,

    the HARQ timing indication information included in the first DCI format indicates the first time unit; or the like, or, alternatively,

    the HARQ timing indication information included in the first DCI format indicates an invalid value, and the second DCI format is a detected DCI format on a PDCCH monitoring opportunity after the first DCI format.
13. The method of any one of claims 1 to 12, further comprising:

    the terminal equipment receives a third DCI format on a second cell, wherein the third DCI format is used for indicating the release of a semi-persistent physical downlink shared channel (SPS) PDSCH, and the N cells comprise the second cell;

    the first HARQ-ACK codebook includes at least one of a feedback bit sequence, the first bit sequence, and a second bit sequence arranged on the N cells based on HARQ process numbers, where the second bit sequence includes ACK information corresponding to the third DCI format.
14. The method of claim 13, wherein the first HARQ-ACK codebook comprises feedback bit sequences arranged based on HARQ process numbers over the N cells, the first bit sequence, and the second bit sequence, and wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook comprises at least one of:

    the feedback bit sequences arranged on the N cells based on the HARQ process numbers and the second bit sequences comprise the first bit sequences;

    the second bit sequence and the feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

    the first bit sequence, the second bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the second bit sequence, the first bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process numbers, and the second bit sequence;

    the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the first bit sequence;

    the feedback bit sequence, the first bit sequence and the second bit sequence are arranged on the N cells based on HARQ process numbers;

    the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on HARQ process numbers.
15. The method of claim 13, wherein the first HARQ-ACK codebook includes the second bit sequence and a feedback bit sequence arranged based on HARQ process numbers on the N cells, and the first HARQ-ACK codebook does not include the first bit sequence, and wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook includes at least one of:

    the feedback bit sequence and the second bit sequence are arranged on the N cells based on HARQ process numbers;

    the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process numbers.
16. The method of claim 13, wherein the first HARQ-ACK codebook includes a feedback bit sequence and the first bit sequence arranged based on HARQ process numbers on the N cells, and the first HARQ-ACK codebook does not include the second bit sequence, and wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook includes at least one of:

    feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

    a feedback bit sequence arranged on the N cells based on HARQ process numbers and the first bit sequence;

    the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.
17. The method of any of claims 13 to 16, wherein the terminal device generates a first HARQ-ACK codebook comprising:

    the terminal device generates the first HARQ-ACK codebook for a first time unit according to the received third DCI format, wherein,

    the HARQ timing indication information included in the third DCI format indicates the first time unit.
18. The method of any of claims 13 to 17, wherein the second bit sequence comprises 1-bit ACK information.
19. The method of any one of claims 1-18, wherein the first DCI format comprises DCI format 1 \u1.
20. The method according to any of claims 1-19, wherein the terminal device is configured with a single HARQ-ACK feedback.
21. The method of any one of claims 1 to 20, wherein the secondary cell dormant state comprises secondary cell dormant or dormant behavior.
22. A feedback method of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook is characterized by comprising the following steps of:

    the network equipment sends a first Downlink Control Information (DCI) format to terminal equipment on a first cell, wherein the first DCI format is used for indicating a sleep state of a secondary cell, and the first DCI format does not schedule physical channel transmission;

    the network equipment receives a first HARQ-ACK codebook sent by the terminal equipment, wherein the first HARQ-ACK codebook comprises at least one of a feedback bit sequence and a first bit sequence which are arranged on N cells based on HARQ process numbers, the first bit sequence comprises acknowledgement ACK information corresponding to the first DCI format, the N cells comprise the first cell, and N is a positive integer.
23. The method of claim 22, wherein the first bit sequence is included in the feedback bit sequences arranged based on HARQ process numbers over the N cells.
24. The method of claim 23, wherein indication information of a first HARQ process number is included in the first DCI format, and a position of the first bit sequence in a feedback bit sequence arranged based on HARQ process numbers on the N cells is determined according to an index of the first cell and/or the first HARQ process number.
25. The method according to claim 23 or 24 c h a r a c t e r i z e d i n that the first bit sequence comprises 1 bit ACK information if the first cell corresponds to a transport block, TB, based feedback mode.
26. The method of claim 23 or 24, wherein the first bit sequence comprises 1-bit ACK information or the first bit sequence comprises G-bit ACK information if the first cell corresponds to a Code Block Group (CBG) -based feedback mode, wherein G represents a CBG feedback length corresponding to a previous TB in the first cell, and G is a positive integer.
27. The method according to any of claims 23 to 26, wherein the NDI information included in the first bit sequence is a preset value if the network device configures the terminal device with a feedback mode including new data indication NDI information.
28. The method of claim 22, wherein the first HARQ-ACK codebook comprises a feedback bit sequence and the first bit sequence arranged based on HARQ process numbers over N cells, wherein,

    the first bit sequence is located in front of a feedback bit sequence arranged on the N cells based on HARQ process numbers; or the like, or, alternatively,

    the first bit sequence is located after the feedback bit sequence arranged based on the HARQ process number on the N cells.
29. The method of claim 28, wherein the first sequence of bits includes 1-bit ACK information.
30. The method according to any of claims 22 to 29, wherein the feedback bit sequences arranged based on HARQ process numbers over the N cells comprise feedback bit sequences arranged based on HARQ process numbers for all HARQ processes over the N cells, the arrangement order comprising HARQ process number first followed by cell, wherein for all HARQ processes over each of the N cells arranged in HARQ process number order from small to large, the N cells are arranged in cell index order from small to large.
31. The method according to one of claims 22 to 30, wherein the N cells comprise all cells configured in one physical uplink control channel, PUCCH, group; or, the N cells include all cells activated in one PUCCH group.
32. The method of any one of claims 22-31, wherein the first HARQ-ACK codebook is generated for a first time unit for the terminal device based on a second DCI format including single HARQ-ACK feedback request information, wherein HARQ timing indication information included in the second DCI format indicates the first time unit.
33. The method of claim 32,

    the HARQ timing indication information included in the first DCI format indicates the first time unit; or the like, or, alternatively,

    the HARQ timing indication information included in the first DCI format indicates an invalid value, and the second DCI format is a DCI format detected on a PDCCH monitoring opportunity after the first DCI format.
34. The method of any one of claims 22 to 33, further comprising:

    the network equipment sends a third DCI format to the terminal equipment on a second cell, wherein the third DCI format is used for indicating the release of a semi-persistent physical downlink shared channel (SPS) PDSCH, and the N cells comprise the second cell;

    the first HARQ-ACK codebook includes at least one of a feedback bit sequence, the first bit sequence, and a second bit sequence arranged on the N cells based on HARQ process numbers, where the second bit sequence includes ACK information corresponding to the third DCI format.
35. The method of claim 34, wherein the first HARQ-ACK codebook comprises feedback bit sequences arranged based on HARQ process numbers over the N cells, the first bit sequence, and the second bit sequence, and wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook comprises at least one of:

    the feedback bit sequences arranged on the N cells based on the HARQ process numbers and the second bit sequences comprise the first bit sequences;

    the second bit sequence and the feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

    the first bit sequence, the second bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the second bit sequence, the first bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence;

    the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the first bit sequence;

    a feedback bit sequence, the first bit sequence and the second bit sequence arranged on the N cells based on HARQ process numbers;

    the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on HARQ process numbers.
36. The method of claim 34, wherein the first HARQ-ACK codebook comprises a feedback bit sequence and the second bit sequence arranged based on HARQ process numbers over the N cells, and the first HARQ-ACK codebook does not include the first bit sequence, and wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook comprises at least one of:

    a feedback bit sequence arranged on the N cells based on HARQ process numbers and the second bit sequence;

    the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.
37. The method of claim 34, wherein the first HARQ-ACK codebook includes feedback bit sequences arranged based on HARQ process numbers on the N cells and the first bit sequence, and the first HARQ-ACK codebook does not include the second bit sequence, and wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook includes at least one of:

    the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

    the feedback bit sequence arranged on the N cells based on the HARQ process numbers and the first bit sequence;

    the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.
38. The method of any one of claims 34 to 37, wherein the first HARQ-ACK codebook is generated for a first time unit for the terminal device based on a third DCI format, wherein HARQ timing indication information included in the third DCI format indicates the first time unit.
39. The method of any one of claims 34 to 38, wherein the second bit sequence comprises 1-bit ACK information.
40. The method of any one of claims 22 to 39, wherein the first DCI format comprises DCI format 1 \u1.
41. The method according to one of claims 22 to 40, wherein the network device configures the terminal device with a single HARQ-ACK feedback.
42. The method of any of claims 22 to 41, wherein the secondary cell dormant state comprises secondary cell dormant or dormant behavior.
43. A terminal device, comprising:

    a communication unit, configured to receive a first downlink control information DCI format on a first cell, where the first DCI format is used to indicate a sleep state of a secondary cell, and the first DCI format does not schedule physical channel transmission;

    a processing unit, configured to generate a first HARQ-ACK codebook, where the first HARQ-ACK codebook includes at least one of a feedback bit sequence and a first bit sequence that are arranged on N cells based on a hybrid automatic repeat request HARQ process number, where the first bit sequence includes acknowledgement ACK information corresponding to the first DCI format, the N cells include the first cell, and N is a positive integer.
44. The terminal device of claim 43, wherein the first bit sequence is included in the feedback bit sequences arranged over the N cells based on HARQ process numbers.
45. The terminal device of claim 43, wherein indication information of a first HARQ process number is included in the first DCI format, and a position of the first bit sequence in a feedback bit sequence arranged based on HARQ process numbers on the N cells is determined according to an index of the first cell and/or the first HARQ process number.
46. The terminal device of claim 44 or 45, wherein the first bit sequence comprises 1-bit ACK information if the first cell corresponds to a transport block, TB, based feedback mode.
47. The terminal device of claim 44 or 45, wherein the first bit sequence includes 1-bit ACK information or the first bit sequence includes G-bit ACK information if the first cell corresponds to a Code Block Group (CBG) -based feedback mode, where G denotes a CBG feedback length corresponding to a previous TB in the first cell, and G is a positive integer.
48. The terminal device of any one of claims 44-47, wherein the NDI information included in the first bit sequence is a predefined value if the terminal device is configured in a feedback mode including new data indication NDI information.
49. The terminal device of claim 43, wherein the first HARQ-ACK codebook comprises a feedback bit sequence and the first bit sequence arranged based on HARQ process numbers over N cells, wherein,

    the first bit sequence is positioned in front of a feedback bit sequence arranged on the N cells based on HARQ process numbers; or the like, or, alternatively,

    the first bit sequence is located after the feedback bit sequence arranged based on the HARQ process number on the N cells.
50. The terminal device of claim 49, wherein the first sequence of bits includes 1-bit ACK information.
51. The terminal device according to one of claims 43 to 50, wherein the feedback bit sequences arranged based on HARQ process numbers over N cells comprises feedback bit sequences arranged based on HARQ process numbers for all HARQ processes over the N cells, the arrangement order comprising HARQ process number first and cell last, wherein for all HARQ processes over each of the N cells arranged in HARQ process number order from small to large, the N cells are arranged in cell index order from small to large.
52. The terminal device according to one of claims 43 to 51, wherein the N cells comprise all cells configured in one physical uplink control channel, PUCCH, group; or, the N cells include all cells activated in one PUCCH group.
53. The terminal device of any one of claims 43 to 52, wherein the terminal device generates a first HARQ-ACK codebook comprising:

    and the terminal equipment generates the first HARQ-ACK codebook for a first time unit according to a received second DCI format, wherein the second DCI format comprises single HARQ-ACK feedback request information, and HARQ timing indication information in the second DCI format indicates the first time unit.
54. The terminal device of claim 53,

    the HARQ timing indication information included in the first DCI format indicates the first time unit; or the like, or, alternatively,

    the HARQ timing indication information included in the first DCI format indicates an invalid value, and the second DCI format is a DCI format detected on a PDCCH monitoring opportunity after the first DCI format.
55. The terminal device of any of claims 43-54, wherein the communication unit is further to receive a third DCI format on a second cell, the third DCI format to indicate a semi-persistent physical downlink shared channel (SPS) PDSCH release, the second cell being included in the N cells;

    the first HARQ-ACK codebook includes at least one of a feedback bit sequence, the first bit sequence, and a second bit sequence arranged on the N cells based on HARQ process numbers, where the second bit sequence includes ACK information corresponding to the third DCI format.
56. The terminal device of claim 55, wherein the first HARQ-ACK codebook comprises a feedback bit sequence, the first bit sequence and the second bit sequence arranged based on HARQ process numbers on the N cells, and wherein an arrangement order of bit sequences in the first HARQ-ACK codebook comprises at least one of:

    the feedback bit sequences arranged on the N cells based on the HARQ process numbers and the second bit sequences comprise the first bit sequences;

    the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequence arranged on the N cells based on the HARQ process numbers comprises the first bit sequence;

    the first bit sequence, the second bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the second bit sequence, the first bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence;

    the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process numbers, and the first bit sequence;

    a feedback bit sequence, the first bit sequence and the second bit sequence arranged on the N cells based on HARQ process numbers;

    the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on HARQ process numbers.
57. The terminal device of claim 55, wherein the first HARQ-ACK codebook includes the feedback bit sequence and the second bit sequence arranged based on HARQ process numbers on the N cells, and the first HARQ-ACK codebook does not include the first bit sequence, and an arrangement order of bit sequences in the first HARQ-ACK codebook includes at least one of:

    the feedback bit sequence and the second bit sequence are arranged on the N cells based on HARQ process numbers;

    the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process numbers.
58. The terminal device of claim 55, wherein the first HARQ-ACK codebook includes the feedback bit sequence and the first bit sequence arranged based on HARQ process numbers on the N cells, and the first HARQ-ACK codebook does not include the second bit sequence, and wherein an order of arrangement of the bit sequences in the first HARQ-ACK codebook includes at least one of:

    the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

    a feedback bit sequence arranged on the N cells based on HARQ process numbers and the first bit sequence;

    the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.
59. The terminal device according to any one of claims 55 to 58, wherein the processing unit is specifically configured to:

    generating the first HARQ-ACK codebook for a first time unit according to a received third DCI format, wherein,

    the HARQ timing indication information included in the third DCI format indicates the first time unit.
60. The terminal device of any of claims 55 to 59, wherein the second bit sequence comprises 1-bit ACK information.
61. The terminal device of any one of claims 43 to 60, wherein the first DCI format comprises DCI format 1 \u1.
62. The terminal device of any one of claims 43 to 61, wherein the terminal device is configured with a single HARQ-ACK feedback.
63. The terminal device of any one of claims 43 to 62, wherein the secondary cell dormant state comprises secondary cell dormant or dormant behavior.
64. A network device, comprising:

    a communication unit, configured to send a first downlink control information DCI format to a terminal device in a first cell, where the first DCI format is used to indicate a sleep state of a secondary cell, and the first DCI format does not schedule physical channel transmission;

    the communication unit is further configured to receive a first HARQ-ACK codebook sent by the terminal device, where the first HARQ-ACK codebook includes at least one of a feedback bit sequence and a first bit sequence arranged based on a hybrid automatic repeat request HARQ process number in N cells, where the first bit sequence includes ACK information corresponding to the first DCI format, the N cells include the first cell, and N is a positive integer.
65. The network device of claim 64, wherein the first sequence of bits is included in the sequence of feedback bits arranged over the N cells based on HARQ process numbers.
66. The network device of claim 65, wherein indication information of a first HARQ process number is included in the first DCI format, and a position of the first bit sequence in a feedback bit sequence arranged based on HARQ process numbers on the N cells is determined according to an index of the first cell and/or the first HARQ process number.
67. The network device of claim 65 or 66, wherein the first bit sequence comprises 1-bit ACK information if the first cell corresponds to a transport block, TB, based feedback mode.
68. The network device of claim 65 or 66, wherein the first bit sequence comprises 1-bit ACK information or the first bit sequence comprises G-bit ACK information if the first cell corresponds to a Code Block Group (CBG) -based feedback mode, wherein G represents a CBG feedback length corresponding to a previous TB in the first cell, and G is a positive integer.
69. The network device of any one of claims 65 to 68, wherein the NDI information included in the first bit sequence is a preset value if the network device configures the terminal device with a feedback mode including New Data Indication (NDI) information.
70. The network device of claim 64, wherein the first HARQ-ACK codebook comprises a sequence of feedback bits arranged based on HARQ process numbers over N cells and the first sequence of bits, wherein,

    the first bit sequence is positioned in front of a feedback bit sequence arranged on the N cells based on HARQ process numbers; or the like, or a combination thereof,

    the first bit sequence is located after the feedback bit sequence arranged based on the HARQ process number on the N cells.
71. The network device of claim 70, wherein the first sequence of bits comprises 1-bit ACK information.
72. The network device of any one of claims 64 to 71, wherein the feedback bit sequences arranged based on HARQ process numbers over the N cells comprise feedback bit sequences arranged based on HARQ process numbers for all HARQ processes over the N cells, the arrangement order comprising HARQ process number first and cell last, wherein for all HARQ processes over each of the N cells arranged in HARQ process number order from small to large, the N cells are arranged in cell index order from small to large.
73. The network device of any of claims 64-72, wherein the N cells comprise all cells configured in one physical uplink control channel, PUCCH, group; or, the N cells include all cells activated in one PUCCH group.
74. The network device of any one of claims 64-73, wherein the first HARQ-ACK codebook is generated for a first time unit for the terminal device based on a second DCI format that includes single HARQ-ACK feedback request information therein, HARQ timing indication information included in the second DCI format indicating the first time unit.
75. The network device of claim 74,

    the HARQ timing indication information included in the first DCI format indicates the first time unit; or the like, or, alternatively,

    the HARQ timing indication information included in the first DCI format indicates an invalid value, and the second DCI format is a DCI format detected on a PDCCH monitoring opportunity after the first DCI format.
76. The network device of any one of claims 64-75, wherein the communication unit is further configured to send a third DCI format on a second cell to the terminal device, the third DCI format being configured to indicate a semi-persistent physical downlink shared channel (SPS) PDSCH release, the second cell being included in the N cells;

    the first HARQ-ACK codebook includes at least one of a feedback bit sequence, the first bit sequence, and a second bit sequence arranged on the N cells based on HARQ process numbers, where the second bit sequence includes ACK information corresponding to the third DCI format.
77. The network device of claim 76, wherein the first HARQ-ACK codebook comprises a feedback bit sequence, the first bit sequence, and the second bit sequence arranged based on HARQ process numbers over the N cells, and wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook comprises at least one of:

    the feedback bit sequences arranged on the N cells based on the HARQ process numbers and the second bit sequences, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequences;

    the second bit sequence and the feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

    the first bit sequence, the second bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the second bit sequence, the first bit sequence and a feedback bit sequence arranged on the N cells based on HARQ process numbers;

    the first bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the second bit sequence;

    the second bit sequence, the feedback bit sequence arranged on the N cells based on the HARQ process number, and the first bit sequence;

    a feedback bit sequence, the first bit sequence and the second bit sequence arranged on the N cells based on HARQ process numbers;

    the feedback bit sequence, the second bit sequence and the first bit sequence are arranged on the N cells based on HARQ process numbers.
78. The network device of claim 76, wherein the first HARQ-ACK codebook includes the second bit sequence and feedback bit sequences arranged based on HARQ process numbers over the N cells, and wherein the first HARQ-ACK codebook does not include the first bit sequence, wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook includes at least one of:

    a feedback bit sequence arranged on the N cells based on HARQ process numbers and the second bit sequence;

    the second bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.
79. The network device of claim 76, wherein the first HARQ-ACK codebook includes a feedback bit sequence and the first bit sequence arranged based on HARQ process numbers over the N cells, and wherein the first HARQ-ACK codebook does not include the second bit sequence, wherein an order of arrangement of bit sequences in the first HARQ-ACK codebook includes at least one of:

    feedback bit sequences arranged on the N cells based on the HARQ process numbers, wherein the feedback bit sequences arranged on the N cells based on the HARQ process numbers comprise the first bit sequence;

    a feedback bit sequence arranged on the N cells based on HARQ process numbers and the first bit sequence;

    the first bit sequence and the feedback bit sequence arranged on the N cells based on the HARQ process number.
80. The network device of any one of claims 76-79, wherein the first HARQ-ACK codebook is generated for a first time unit for the terminal device based on a third DCI format, wherein HARQ timing indication information included in the third DCI format indicates the first time unit.
81. The network device of any of claims 76-80, wherein the second sequence of bits comprises 1-bit ACK information.
82. The network device of any one of claims 64-81, wherein the first DCI format comprises DCI format 1 \u1.
83. The network device of any one of claims 64-82, wherein the network device configures single HARQ-ACK feedback for the terminal device.
84. The network device of any one of claims 64-83, wherein the secondary cell dormant state comprises secondary cell dormant or non-dormant behavior.
85. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 21.
86. A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 22 to 42.
87. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 21.
88. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 22 to 42.
89. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 21.
90. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 22 to 42.
91. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 21.
92. A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 22 to 42.
93. A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1-21.
94. A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 22 to 42.

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