CN117134868A

CN117134868A - HARQ-ACK feedback method, terminal and network equipment

Info

Publication number: CN117134868A
Application number: CN202210531605.8A
Authority: CN
Inventors: 曾超君; 王理惠
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2023-11-28

Abstract

The application discloses an HARQ-ACK feedback method, a terminal and network side equipment, belonging to the technical field of communication, wherein the HARQ-ACK feedback method provided by the embodiment of the application comprises the following steps: the terminal determines a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; the time-frequency resource occupies resources in at least one available sub-band; and the terminal performs HARQ-ACK feedback based on the time-frequency resource.

Description

HARQ-ACK feedback method, terminal and network equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a HARQ-ACK feedback method, a terminal and network side equipment.

Background

When the cellular network is deployed, based on available spectrum, traffic characteristics, and the like, a duplex mode such as frequency division duplex (Frequency Division Duplex, FDD) or time division duplex (Time Division Duplex, TDD) may be employed. When FDD is adopted, uplink transmission and downlink transmission are located on different frequency points, and the uplink transmission and the downlink transmission are not interfered with each other and can be performed simultaneously. When TDD is adopted, the uplink transmission and the downlink transmission are positioned on the same frequency point and are staggered in a time division mode. In order to more flexibly utilize limited spectrum resources to dynamically match service requirements and improve resource utilization efficiency, a flexible duplex mode is provided. The flexible duplex mode is as follows: full duplex at network side, that is, at the same time, uplink transmission and downlink transmission can be performed at different frequency domain positions simultaneously, and in order to avoid interference between uplink and downlink, a certain guard band can be reserved between frequency domain positions (corresponding to duplex sub-bands) corresponding to different transmission directions; terminal side half duplex, that is, the same as TDD, can only make uplink transmission or downlink transmission at the same time, and the two can not be made simultaneously. It will be appreciated that in this duplex mode, the uplink and downlink transmissions at the same time on the network side can only be directed to different terminals.

In the NR system, for a certain physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) transmission (including PDSCH transmission of Dynamic Grant (DG), and Semi-static (Semi-Persistent Scheduling, SPS) PDSCH transmission), the terminal feeds back a corresponding hybrid automatic repeat request-acknowledgement HARQ-ACK to inform the network side device whether to successfully decode the PDSCH transmission, and the network side device may perform subsequent data scheduling and resource allocation based on the HARQ-ACK feedback. In the aforementioned flexible duplex mode, there may be more conflicts in the PUCCH resources corresponding to the HARQ-ACK feedback, thereby affecting the delay performance of the HARQ-ACK feedback. It is therefore desirable for those skilled in the art to implement a HARQ-ACK feedback method that avoids or mitigates resource collision.

Disclosure of Invention

The embodiment of the application provides a HARQ-ACK feedback method, a terminal and network side equipment, which can solve the problem of PUCCH resource conflict corresponding to HARQ-ACK feedback.

In a first aspect, a HARQ-ACK feedback method is provided, including:

the terminal determines a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; the time-frequency resource occupies resources in at least one available sub-band;

And the terminal performs HARQ-ACK feedback based on the time-frequency resource.

In a second aspect, there is provided a HARQ-ACK feedback method, including:

and the network side equipment receives HARQ-ACK fed back by the terminal, wherein the HARQ-ACK is fed back by the terminal based on time-frequency resources corresponding to uplink channel resources, and the time-frequency resources occupy resources in at least one available sub-band.

In a third aspect, there is provided an HARQ-ACK feedback device, including:

the processing module is used for determining a time-frequency resource corresponding to the uplink channel resource for feeding back the HARQ-ACK; the time-frequency resource occupies resources in at least one available sub-band;

and the sending module is used for carrying out HARQ-ACK feedback based on the time-frequency resource.

In a fourth aspect, there is provided an HARQ-ACK feedback device, including:

and the receiving module is used for receiving HARQ-ACK fed back by the terminal, wherein the HARQ-ACK is fed back by the terminal based on time-frequency resources corresponding to uplink channel resources, and the time-frequency resources occupy resources in at least one available sub-band.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

A sixth aspect provides a terminal, including a processor and a communication interface, where the processor is configured to determine a time-frequency resource corresponding to an uplink channel resource used for feeding back HARQ-ACK; the time-frequency resource occupies resources in at least one available sub-band, and the communication interface is used for carrying out HARQ-ACK feedback based on the time-frequency resource.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

In an eighth aspect, a network side device is provided, where the network side device includes a processor and a communication interface, where the communication interface is configured to receive HARQ-ACK fed back by a terminal, where the HARQ-ACK is fed back by the terminal based on a time-frequency resource corresponding to an uplink channel resource, and the time-frequency resource occupies resources in at least one available subband.

In a ninth aspect, there is provided a communication system comprising: a terminal and a network side device, the terminal may be configured to perform the steps of the HARQ-ACK feedback method according to the first aspect, and the network side device may be configured to perform the steps of the HARQ-ACK feedback method according to the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the HARQ-ACK feedback method according to the first or second aspect.

In the embodiment of the application, a terminal determines a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; the time-frequency resource is a resource in at least one available sub-band, so that the terminal can perform HARQ-ACK feedback based on the corresponding time-frequency resource in the at least one available sub-band of the uplink channel resource, and collision of the uplink resource for feeding back the HARQ-ACK can be avoided or reduced, thereby improving the time delay performance of the HARQ-ACK feedback.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

FIG. 2 is a schematic diagram of flexible duplexing provided by an embodiment of the present application;

fig. 3 is a schematic flow chart of a HARQ-ACK feedback method according to an embodiment of the present application;

fig. 4 is one of uplink channel resource allocation diagrams of the HARQ-ACK feedback method according to the embodiment of the present application;

fig. 5 is a second schematic diagram of uplink channel resource allocation of the HARQ-ACK feedback method according to the embodiment of the present application;

fig. 6 is a schematic diagram of uplink channel resource set configuration of an HARQ-ACK feedback method according to an embodiment of the present application;

fig. 7 is an interactive flow diagram of a HARQ-ACK feedback method according to an embodiment of the present application;

fig. 8 is a second flowchart of a HARQ-ACK feedback method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an HARQ-ACK feedback device according to an embodiment of the present application;

fig. 10 is a second schematic structural diagram of a HARQ-ACK feedback device according to an embodiment of the present application;

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

fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

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

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

Fig. 2 shows a schematic diagram of a flexible duplex mode, where the network side divides the frequency domain semi-statically into three duplex sub-bands. In the third time slot, UE1 and UE2 perform downlink reception and uplink transmission, respectively. It should be noted that when the transmission directions of the adjacent two duplex subbands are the same, a guard band may not be provided between the two duplex subbands, or the guard band between the two duplex subbands may correspond to/be set to 0 PRBs. The guard bands that may exist between duplex subbands in figures 2, 4, 5, and 6 of the embodiments of the present application are merely illustrative.

In the NR system, for a certain PDSCH transmission (including a dynamically scheduled PDSCH transmission and an SPS PDSCH transmission), the terminal feeds back a corresponding HARQ-ACK to inform the network side whether to successfully decode the PDSCH transmission, and the network side may perform subsequent data scheduling and resource allocation based on the HARQ-ACK feedback, for example, when the UE feeds back NACK, the network side may schedule retransmission corresponding to data carried by the PDSCH transmission. In addition, for some downlink control information (Downlink Control Information, DCI) of unscheduled PDSCH transmission, the terminal needs to feedback the corresponding HARQ-ACK to indicate that this DCI is successfully received (e.g., SPS PDSCH release is indicated by DCI, SCell sleep (downlink) or transmission configuration indication (Transmission Configuration Indicator, TCI) status update), or feedback the HARQ-ACK required on the network side (e.g., terminal feedback Type-3codebook (codebook)/enhanced (enhanced) Type-3codebook is triggered by DCI of unscheduled PDSCH transmission).

Among the above HARQ-ACK feedback, the HARQ-ACK feedback triggered by DCI and corresponding to DCI may be referred to as dynamic scheduling HARQ-ACK (abbreviated DG HARQ-ACK; one exception is that HARQ-ACK corresponding to SPS PDSCH transmission triggered by SPS activated DCI is referred to as SPS HARQ-ACK), and HARQ-ACK feedback corresponding to SPS PDSCH transmission may be referred to as SPS HARQ-ACK.

After a terminal accesses a network and configures corresponding PUCCH resources, the DG HARQ-ACK uses PUCCH resources configured for a certain PUCCH resource set; when SPS HARQ-ACK is not multiplexed with DG HARQ-ACK, the used PUCCH resource is configured by a parameter n1PUCCH-AN or SPS-PUCCH-AN-List-r16, and when multiplexed with DG HARQ-ACK, the used PUCCH resource uses the relevant rule of DG HARQ-ACK; wherein, the n1PUCCH-AN parameter is used for configuring PUCCH resources; the sps-PUCCH-AN-List-r16 parameter is used to configure a PUCCH resource List, including a plurality of PUCCH resources.

In the embodiment of the application, in order to avoid or mitigate possible resource conflict, the time-frequency resources corresponding to the uplink channel resources for feeding back the HARQ-ACK are distributed in more available sub-bands as much as possible.

The HARQ-ACK feedback method provided by the embodiment of the present application is described in detail below by means of some embodiments and application scenarios thereof with reference to the accompanying drawings.

Fig. 3 is a schematic flow chart of a HARQ-ACK feedback method according to an embodiment of the present application. As shown in fig. 3, the method provided in this embodiment includes:

step 101, a terminal determines a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; the time-frequency resource occupies resources in at least one available sub-band;

specifically, before the terminal feeds back the HARQ-ACK to the network side device, it needs to determine the uplink channel resources used for feeding back the HARQ-ACK and the time-frequency resources corresponding to the uplink channel resources, where the time-frequency resources occupy resources in at least one available Sub-band (Sub-band), that is, at least one available Sub-band includes resources occupied by the time-frequency resources corresponding to the uplink channel resources used for feeding back the HARQ-ACK, including PRBs occupied in the frequency domain.

And 102, the terminal performs HARQ-ACK feedback based on the time-frequency resource.

Specifically, the terminal may perform HARQ-ACK feedback based on one or more of the determined time-frequency resources corresponding to the uplink channel resources. The network side device receives the HARQ-ACK fed back by the terminal side, for example, the network side device may receive the HARQ-ACK fed back by the terminal side on the determined one or more time-frequency resources based on the same rule as the terminal side.

In the method of the embodiment, a terminal determines a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; the time-frequency resource is a resource in at least one available sub-band, so that the terminal can perform HARQ-ACK feedback based on the corresponding time-frequency resource in the at least one available sub-band of the uplink channel resource, and collision of the uplink resource for feeding back the HARQ-ACK can be avoided or reduced, thereby improving the time delay performance of the HARQ-ACK feedback.

Optionally, the uplink channel resource corresponds to at least one time-frequency resource; the first time-frequency resource is configured based on any one of the following ways:

the physical resource block PRB occupied by the first time-frequency resource is positioned in at least one sub-band;

the PRB occupied by the first time-frequency resource is located within only one sub-band.

Wherein the first time-frequency resource is any one of time-frequency resources corresponding to the uplink channel resource.

For convenience of description hereinafter, the physical resource block PRB occupied by the first time-frequency resource is located in at least one sub-band and may be denoted as frequency domain resource allocation mode 1. In the frequency domain resource allocation mode 1, the PRB occupied by one time-frequency resource need not be located in only one sub-band, but may be located in one or more sub-bands, and need only be located in a frequency domain range corresponding to a BandWidth Part (BWP) corresponding to the current uplink channel resource.

The PRB occupied by the first time-frequency resource is located in only one sub-band and can be denoted as frequency domain resource allocation mode 2. At this time, each PRB occupied by one time-frequency resource is located in the same sub-band.

The sub-band may be the aforementioned duplex sub-band, which may be understood as one to a plurality of PRBs corresponding to a frequency domain continuity or discontinuity (typically considered to be frequency domain continuity) in a certain time domain unit (e.g., a radio frame, a sub-frame, a slot, a symbol, etc.), and may also be referred to as a Resource Block (RB) set. A time-frequency resource may be understood as a time-frequency resource occupied by one uplink channel transmission, which may correspond to one to a plurality of time-domain units of the time domain (e.g. symbols, which may be contiguous in the time domain when corresponding to a plurality of symbols), and at least one PRB within each time-domain unit (which may be contiguous in the frequency domain when corresponding to a plurality of PRBs), optionally, may also correspond to other properties of the uplink channel transmission, including for example uplink channel Format, whether intra/inter slot hopping is performed, whether repeated transmission is performed, etc.

Alternatively, the uplink channel may be a physical uplink control channel (Physical Uplink Control Channel, PUCCH).

In the above embodiment, the physical resource block PRB occupied by the first time-frequency resource is located in at least one sub-band, or is located in only one sub-band, so that a subsequent uplink channel resource allocation mode can be combined to achieve greater configuration/indication flexibility, so as to avoid or mitigate resource collision.

Alternatively, for the frequency domain resource allocation mode 2, any one of the following modes may be adopted:

in the case that the PRB occupied by the first time-frequency resource is only located in one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in one sub-band; or alternatively, the first and second heat exchangers may be,

in the case that the PRB occupied by the first time-frequency resource is located in only one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands.

For convenience of description, the time-frequency resource corresponding to each uplink channel resource is located in one sub-band and can be recorded as a resource allocation mode 1; the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands and can be marked as a resource allocation mode 2.

Specifically, for the frequency domain resource allocation mode 2, when one uplink channel resource (corresponding to a unique resource identification ID in a first Serving cell (Serving cell) or a first BWP of a terminal; uplink control information (Uplink Control Information, UCI) such as HARQ-ACK, scheduling request (Scheduling Request, SR), channel state information (Channel State Information, CSI) and the like) is configured, the resource allocation mode 1 or the resource allocation mode 2 may be adopted. For resource allocation 1, each uplink channel resource has a corresponding time-frequency resource in one subband. For resource allocation 2, each uplink channel resource has a corresponding time-frequency resource in multiple subbands.

The first serving cell is a serving cell where an uplink channel resource or a time-frequency resource is located, and the first BWP is a bandwidth portion where the uplink channel resource or the time-frequency resource is located.

Alternatively, each uplink channel resource may correspond to a time-frequency resource within each sub-band of the first serving cell or the first BWP.

Alternatively, each uplink channel resource may correspond to one time-frequency resource only in any one of the sub-bands of the first serving cell or a portion of the sub-bands of the first BWP configuration.

Alternatively, a certain uplink channel resource has an available subband corresponding to the time-frequency resource, and may be denoted as a set of available subbands (including one to a plurality of available subbands), which may be determined based on any one of the following:

any sub-band corresponding to the first service cell or the first bandwidth part BWP is included;

the method comprises the steps of including N1 sub-bands with minimum or maximum indexes in sub-bands corresponding to a first service cell or a first BWP;

any sub-band meeting a first condition in the sub-band corresponding to the first service cell or the first BWP is included;

n2 sub-bands which meet a first condition and have the smallest or largest indexes are contained in the sub-bands corresponding to the first service cell or the first BWP;

Wherein N1 and N2 are integers greater than 0.

Specifically, for convenience of description, any sub-band corresponding to the first serving cell and/or the first BWP is included and may be denoted as a sub-band set 1;

the N1 sub-bands with the smallest or largest index in the sub-bands corresponding to the first serving cell and/or the first BWP may be denoted as sub-band set 2;

any subband satisfying the first condition among the subbands corresponding to the first serving cell and/or the first BWP may be denoted as subband set 3;

the N2 subbands with the smallest or largest index, which satisfy the first condition in the subbands corresponding to the first serving cell and/or the first BWP, may be denoted as subband set 4;

alternatively, N1 and N2 may be specified by a higher layer signaling configuration or protocol;

optionally, the first condition includes at least one of:

the frequency domain bandwidth corresponding to the sub-bands is greater than or equal to a first threshold;

the sub-band has more than or equal to a first number of uplink time domain units or flexible time domain units in a first time domain period;

the sub-bands have a first proportion of uplink time domain units or flexible time domain units greater than or equal to a first proportion of the first time domain period.

Specifically, the first time domain period is a time domain period including a time domain position of a time-frequency resource corresponding to an uplink channel resource, and the time domain period corresponds to a time duration on a time domain, and the value of the time domain period can be specified by a protocol or configured by a high-layer signaling.

The frequency domain bandwidth corresponding to the sub-band may meet a preset requirement, for example, the frequency domain bandwidth is greater than or equal to a first threshold, for example, the number of PRBs contained in the sub-band is not less than X PRBs;

optionally, at least or more than a first number Y of time domain units within one first time domain period of the sub-band is configured or indicated as uplink time domain units or flexible time domain units.

Alternatively, the first number Y of time domain units may be configured by TDD-UL-DL-ConfigCommon or TDD-UL-DL-ConfigDedicated signaling; and/or may be indicated by slot format indication (Slot Format Indicator, SFI) signaling.

Optionally, at least or more than a first proportion Z% of the time domain units of the sub-band within one first time domain period are configured or indicated as uplink time domain units or flexible time domain units.

It will be appreciated that there is at most one time-frequency resource for a certain uplink channel resource within one sub-band.

In the above embodiment, the available sub-band corresponding to the time-frequency resource exists in a certain uplink channel resource, which can be determined based on the above various modes, and the flexibility is high.

Optionally, the determining of the time-frequency resource corresponding to the uplink channel resource in any sub-band in the set of available sub-bands of the resource corresponding to the uplink channel resource may be in the following manner:

For any one of available sub-bands occupied by time-frequency resources, determining the time-frequency resources corresponding to the uplink channel resources in the sub-bands based on time-frequency domain parameters, uplink channel transmission properties and sub-band frequency domain information;

optionally, the time-frequency domain parameters and the uplink channel transmission attribute are uniformly configured for all time-frequency resources corresponding to the uplink channel resources; or alternatively, the first and second heat exchangers may be,

the time-frequency domain parameters and the uplink channel transmission attributes are configured independently for each time-frequency resource corresponding to the uplink channel resource.

Specifically, for convenience of description hereinafter, the time-frequency domain parameters and the uplink channel transmission attribute are uniformly configured by all the time-frequency resources, which may be denoted as a resource configuration mode 2-1, and the time-frequency domain parameters and the uplink channel transmission attribute are independently configured by each time-frequency resource, which may be denoted as a resource configuration mode 2-2.

Resource allocation mode 2-1: the time-frequency domain parameters and the uplink channel transmission properties are uniformly configured for one uplink channel resource, and the time-frequency domain parameters comprise, for example: number of frequency domain PRBs, number of time domain symbols, etc.

Taking the uplink channel Resource as a PUCCH Resource as an example, the time-frequency domain parameter and the uplink channel transmission attribute are uniformly configured for one uplink channel Resource, and the configuration can be performed based on the PUCCH-Resource signaling parameter, for example, all the other parameters except the parameters startingPRB and second hopprb in the PUCCH-Resource signaling parameter are uniformly configured, and the uniformly configured parameters are effective for one time-frequency Resource in any sub-band where the corresponding time-frequency Resource exists for the PUCCH Resource.

The meanings of the parameters startingPRB and second hopprb can be adjusted as: the frequency domain offset (i.e., first frequency domain offset) of the specific frequency domain position (i.e., first target frequency domain position) of the first hop (corresponding parameter startingPRB) and the second hop (corresponding parameter secondHopPRB; configured only when frequency hopping transmission is configured) of the corresponding time-frequency resource in a certain subband is relative to the specific frequency domain position (i.e., second target frequency domain position) of the subband or the first serving cell/first BWP. Alternatively, the parameters startingPRB and secondHopPRB may be omitted and corresponding frequency domain offset parameters introduced respectively to explicitly independently configured first frequency domain offsets.

For example, in fig. 4, the first frequency domain offset P applied to each sub-band is the same, and at this time, the shape of the corresponding time-frequency resource of one uplink channel resource in each sub-band is identical.

Optionally, the subband-frequency domain information comprises any of:

a first frequency domain offset applied by the sub-band and a frequency domain position corresponding to the sub-band;

the first frequency domain offset applied by the sub-band represents a frequency domain offset of a first target frequency domain position of a corresponding time-frequency resource of the uplink channel resource in the sub-band relative to a second target frequency domain position of the sub-band, or a frequency domain offset of a first target frequency domain position of a corresponding time-frequency resource of the uplink channel resource in the sub-band relative to a second target frequency domain position of the first serving cell or the first BWP;

The frequency domain position corresponding to the sub-band represents a first target frequency domain position of the time-frequency resource corresponding to the uplink channel resource in the sub-band. Here, it can be understood that the network side directly configures, for each sub-band, a frequency domain location of a corresponding time-frequency resource in the sub-band (for example, directly configures a common resource block (common resource block, CRB) number corresponding to the frequency domain location).

Optionally, the first target frequency domain location comprises: a first frequency domain unit or a last frequency domain unit occupied by time-frequency resources;

the second target frequency domain location comprises: a first frequency domain unit or a last frequency domain unit.

In the above embodiment, the time-frequency domain parameters and the uplink channel transmission attribute can be uniformly configured or independently configured, so that the time-frequency resources corresponding to the uplink channel resources in the sub-frequency bands are determined based on the time-frequency domain parameters, the uplink channel transmission attribute and the sub-frequency band frequency domain information.

Alternatively, the first frequency domain offset may be expressed as M (M > =0) frequency domain units (PRBs, subcarriers, etc.), and the configuration thereof may take any of the following manners:

The first frequency domain offset corresponding to each sub-band in the available sub-bands is the same, and the first frequency domain offset applied to each time-frequency resource corresponding to the uplink channel resource is the same;

the first frequency domain offset corresponding to at least one of the available sub-bands is different from the first frequency domain offsets corresponding to other sub-bands in the available sub-bands, and the first frequency domain offset applied by at least one of the time-frequency resources corresponding to the uplink channel resources is different from the first frequency domain offsets applied by other time-frequency resources in the time-frequency resources.

Specifically, for convenience of the following description, the above two modes are denoted as frequency domain offset mode 1 and frequency domain offset mode 2, respectively.

Frequency domain offset mode 1: configuring a first frequency domain offset to be simultaneously applied to each sub-band in the set of resource available sub-bands; at this time, the first frequency domain offset applied by each time-frequency resource corresponding to one uplink channel resource is consistent;

frequency domain offset mode 2: configuring a plurality of first frequency domain offsets, wherein each first frequency domain offset is respectively applied to one to a plurality of sub-bands in a resource available sub-band set, and only one first frequency domain offset is applied to one time-frequency resource in each sub-band (and ensuring that after the first frequency domain offset is applied, frequency domain units occupied by the corresponding time-frequency resource are all positioned in the sub-band); at this time, the first frequency domain offset applied by each time-frequency resource corresponding to one uplink channel resource may be different, and optionally, the first frequency domain offset applied by each time-frequency resource may be configured separately.

For resource allocation pattern 2-2: and independently configuring each time-frequency domain parameter and/or uplink channel transmission attribute for the time-frequency resource corresponding to the uplink channel resource in each sub-band in the resource available sub-band set corresponding to the uplink channel resource. Alternatively, the resource IDs may be uniformly configured, or each time-frequency resource corresponding to the uplink channel resource corresponds to the same resource ID (which may also be understood as all corresponding to the resource ID corresponding to the uplink channel resource).

It is understood that the first frequency domain offset may also be configured independently for each time-frequency resource.

Taking the uplink channel Resource as a PUCCH Resource as an example, the time-frequency domain parameter and the uplink channel transmission attribute are configured for each time-frequency Resource corresponding to one uplink channel Resource independently, and the configuration may be performed based on the PUCCH-Resource signaling parameter, for example, all parameters in the PUCCH-Resource signaling parameter are configured independently.

The meanings of the parameters startingPRB and secondHopPRB may be respectively adjusted as follows: the frequency domain offset (i.e., first frequency domain offset) of the specific frequency domain position (i.e., first target frequency domain position) of the first hop (corresponding parameter startingPRB) and the second hop (corresponding parameter secondHopPRB; configured only when frequency hopping transmission is configured) of the corresponding time-frequency resource in a certain subband is relative to the specific frequency domain position (i.e., second target frequency domain position) of the subband or the first serving cell/first BWP. Alternatively, the parameters startingPRB and secondHopPRB may be omitted and corresponding frequency domain offset parameters introduced respectively to explicitly independently configured first frequency domain offsets.

For example, as shown in fig. 5, the first frequency domain offsets applied to the respective sub-bands are P0, P1, and P2, respectively. Wherein P0, P1 and P2 may be different from each other. At this time, the shapes of the corresponding time-frequency resources of one uplink channel resource in each sub-band may be different.

Optionally, the uplink channel resource set is configured in any one of the following manners, and the uplink channel resource set includes the uplink channel resource:

each HARQ-ACK load range corresponds to an uplink channel resource set;

each HARQ-ACK loading range corresponds to a plurality of uplink channel resource sets, each of which corresponds to one subband.

Specifically, for convenience of the following description, the above two modes are respectively denoted as a collective configuration mode 1 and a collective configuration mode 2.

Optionally, the HARQ-ACK load may be understood as the number of bits included in the corresponding HARQ-ACK codebook that is dynamically scheduled, or the number of bits included in UCI obtained after multiplexing when the corresponding HARQ-ACK codebook is dynamically scheduled and other UCI are multiplexed.

For the frequency domain configuration of each uplink channel resource in the uplink channel resource set configured in the set configuration mode 1, the frequency domain resource configuration mode 1 or the frequency domain resource configuration mode 2 may be applied.

When the frequency domain resource allocation scheme 2 is applied, each uplink channel resource in the uplink channel resource set may be configured in either the resource allocation scheme 1 or the resource allocation scheme 2.

When the resource allocation mode 1 is adopted, each uplink channel resource in the uplink channel resource set can be uniformly distributed in different sub-bands as far as possible, so that the network side equipment can select based on the transmission direction of the sub-bands. Optionally, the number of the uplink channel resources which can be configured in one uplink channel resource set can be expanded, so that when a conflict situation exists or the available sub-frequency band is limited, enough uplink channel resources can be selected by a network side, and the time delay performance of uplink channel transmission and the flexibility of resource allocation are ensured. Alternatively, the number of bits occupied by the PRI indication field in the downlink scheduling DCI may be increased synchronously, for example, the number of bits corresponding to one PRI indication field may be ceilings (log 2 (the maximum number of uplink channel resources configured in one uplink channel resource set)), and ceilings function represents a ceiling. Here, the collision may be understood that when at least one Resource Element (RE) occupied by the time-frequency Resource corresponding to the uplink channel transmission is judged as illegal, the time-frequency Resource is considered to have the collision, otherwise, the collision is not considered to exist. For example, when a certain RE is located in a guard band of a network configuration, or is configured or indicated as DL or Flexible by the network, it is judged as illegal.

When the resource allocation mode 2 is adopted, each uplink channel resource in the uplink channel resource set has corresponding time-frequency resources in a plurality of sub-bands.

For Set configuration 2, the Set of subbands (containing one to multiple subbands, hereinafter Set-available Set of subbands) for which there is a Set of corresponding uplink channel resources may be determined based on subband Set 1, 2, 3, or 4. The Set of available subbands for the various HARQ-ACK load ranges (e.g., four load Payload ranges) may be uniformly determined (e.g., identical) or separately determined (may be different).

For the frequency domain configuration of each uplink channel resource in the uplink channel resource set configured by the set configuration mode 2, only the frequency domain resource configuration mode 2 is applied.

Optionally, in a case that each HARQ-ACK load range corresponds to a plurality of uplink channel resource sets, the plurality of uplink channel resource sets are configured in any of the following manners:

respectively configuring uplink channel resource sets corresponding to all sub-bands in the available sub-bands with the corresponding uplink channel resource sets; or alternatively, the first and second heat exchangers may be,

and mapping the uplink channel resource sets corresponding to the sub-bands respectively based on the frequency domain positions of the sub-bands in the available sub-bands with the corresponding uplink channel resource sets and the first target uplink channel resource set.

Specifically, for convenience of the following description, the above two modes are respectively denoted as a collective configuration 2-1 and a collective configuration 2-2. For the Set configuration mode 2-1, corresponding uplink channel resource sets are respectively configured for each sub-band in the Set of available sub-bands.

Specifically, the uplink channel resource sets (including each uplink channel resource in the uplink channel resource set) corresponding to each sub-band are configured independently, and each uplink channel resource in the uplink channel resource set can be configured only by adopting the aforementioned resource configuration mode 1.

For the Set configuration mode 2-2, one uplink channel resource Set, namely a first target uplink channel resource Set, is configured, and uplink channel resource sets corresponding to the sub-bands are respectively mapped on the basis of the first target uplink channel resource Set based on the frequency domain positions of the sub-bands in the Set available sub-band Set.

Specifically, the plurality of uplink channel resource sets mapped to each subband in the Set of available subbands may correspond to the same Set ID (may be referred to as Set ID mode 1). Alternatively, the target IDs corresponding to the uplink channel resource sets may be determined based on the IDs of the configured one uplink channel resource Set and a predefined rule, for example, the IDs of the uplink channel resource sets corresponding to the sub-bands with index n in the Set available sub-band Set are Set to be: target id+n (which may be denoted as set ID pattern 2).

Each uplink channel resource included in each uplink channel resource set determines a corresponding time-frequency resource based on the resource allocation method 2-1 (and allocation information of a corresponding uplink channel resource in one configured uplink channel resource set). When determining that an uplink channel resource and/or a time-frequency resource corresponding to each sub-frequency band in the Set of available sub-frequency bands (belonging to the Set of uplink channel resources corresponding to the sub-frequency band), the frequency domain offset mode 1 or the frequency domain offset mode 2 may be used (where the Set of available sub-frequency bands may be replaced by the Set of available sub-frequency bands), where the uplink channel resource and/or the time-frequency resource correspond to the same resource ID, that is, the time-frequency resource corresponds to one uplink channel resource (resource ID mode 1). Alternatively, the target IDs corresponding to the uplink channel resources may be determined based on the IDs of the corresponding configured uplink channel resources and predefined rules, for example, the IDs of the uplink channel resources corresponding to the subbands with index m in the Set of available subbands are Set to be: target id+m (resource ID scheme 2). The set ID method 1 can be used in combination with the resource ID method 1, and the set ID method 2 can be used in combination with the resource ID method 2.

For example, as shown in fig. 6, each sub-band corresponds to one set of uplink channel resources, and at this time, the time-frequency resources of the corresponding uplink channel resources in the set of uplink channel resources corresponding to each sub-band are the same.

In the above embodiment, each HARQ-ACK load range may correspond to one or more uplink channel resource sets, and the uplink channel resource set corresponding to each subband may be configured independently, or one uplink channel resource set may be configured to map the uplink channel resource set corresponding to each subband, so as to determine the time-frequency resource corresponding to the uplink channel resource based on the uplink channel resource set, and may flexibly select the uplink channel resource set and determine the uplink channel resource and the corresponding time-frequency resource according to the resource conflict situation on each subband, so as to avoid or reduce resource conflict and improve HARQ-ACK feedback performance.

Optionally, the uplink channel resource is determined based on the uplink channel resource indication; the uplink channel resource indication is any one of the following:

an uplink channel resource indication;

multiple uplink channel resource indications.

Alternatively, the uplink channel resource indication may be represented by a physical uplink control channel resource indication (PUCCH Resource Indicator, PRI).

Specifically, for DG HARQ-ACK, one time-frequency resource on one sub-band may be used for transmitting an uplink channel to feed back HARQ-ACK (hereinafter referred to as Case 1), and optionally, a plurality of time-frequency resources on a plurality of sub-bands (e.g., only one time-frequency resource on each sub-band) may also be used for transmitting an uplink channel to feed back HARQ-ACK (hereinafter referred to as Case 2).

Specifically, the uplink channel resource indication may be carried in the downlink scheduling DCI to indicate the used uplink channel resource. For example, there is a PRI indication field in the downlink scheduling DCI to indicate the PUCCH resource used to the terminal.

Alternatively, in the case of determining based on an uplink channel resource indication, step 102 may be implemented as follows:

the terminal uses one of the time-frequency resources corresponding to the uplink channel resources to perform HARQ-ACK feedback (for example, corresponding to the Case 1);

step 101 may be implemented as follows:

one implementation a:

under the condition that PRB occupied by first time-frequency resources is only located in one sub-band, time-frequency resources corresponding to each uplink channel resource are located in one sub-band, and each HARQ-ACK load range corresponds to one uplink channel resource set, a second target uplink channel resource set is determined based on the conflict information of the sub-band corresponding to the first target time domain unit or the first target time domain unit and the first uplink channel resource set; determining a time-frequency resource corresponding to the uplink channel resource based on the second target uplink channel resource set and an uplink channel resource indication; the first set of uplink channel resources is a set of uplink channel resources corresponding to the transmitted HARQ-ACK load.

Specifically, the HARQ-ACK load range corresponding to the actually transmitted HARQ-ACK load may be determined based on the actually transmitted HARQ-ACK load, and further, the first set of uplink channel resources corresponding to the HARQ-ACK load range may be determined based on the HARQ-ACK load range. And determining a second target uplink channel resource set based on the first uplink channel resource set and the corresponding sub-frequency band of the first target time domain unit or conflict information of the first target time domain unit.

Wherein, the uplink channel resource and the time-frequency resource corresponding to the uplink channel resource are one.

To sum up, when one uplink channel resource indication determination is adopted, for Case 1, a corresponding uplink channel resource is determined from one uplink channel resource set based on the indicated one uplink channel resource indication.

For Set configuration mode 1, when frequency domain resource configuration mode 1 is applied, the predefined DGHARQ-ACK feedback mechanism may be directly followed.

The predefined DG HARQ-ACK feedback mechanism can be understood as: the network side configures a corresponding uplink channel resource set for each HARQ-ACK load range, and indicates a single uplink channel resource in the set by a PRI indication field in downlink scheduling DCI for feeding back the HARQ-ACK; when feeding back DG HARQ-ACK, the terminal side firstly determines a corresponding HARQ-ACK load range based on the number of information bits to be fed back, then determines a single uplink channel resource in the set and feeds back the HARQ-ACK based on an uplink channel resource set corresponding to the HARQ-ACK load range and PRI indication in downlink scheduling DCI.

For Set configuration mode 1, when frequency domain resource configuration mode 2 is applied:

for the resource allocation mode 1, a predefined DG HARQ-ACK feedback mechanism may be directly used to determine an uplink channel resource and/or a time-frequency resource.

Alternatively, each uplink channel resource having no collision may be filtered from the first set of uplink channel resources and form a subset based on a subband used in the first target time domain unit (the first target time domain unit is, for example, a HARQ-ACK feedback time unit), and each uplink channel resource having no collision is filtered from the first set of uplink channel resources and forms a subset based on collision information in the first target time domain unit. The obtained subset is the second target uplink channel resource set.

Alternatively, the relative position of each uplink channel resource before and after filtering may remain unchanged, for example, assuming that two uplink channel resources both exist in the subset after filtering, the uplink channel resource that is forward in the set of uplink channel resources before filtering (i.e., the index in the set is smaller) is still forward in the subset; alternatively, the uplink channel resources in the subset are arranged in an ascending or descending order based on the resource IDs.

An uplink channel resource indication (e.g., the first uplink channel resource in the subset corresponding to PRI '000') may be applied to this subset, which may avoid or mitigate the problem of limited number of PRI indication bits or need for expansion due to expansion of the number of configurable uplink channel resources in one set of uplink channel resources.

Optionally, in the implementation a, "determining, based on the second target uplink channel resource set and one uplink channel resource indication, a time-frequency resource corresponding to the uplink channel resource" may be implemented in the following manner:

and under the condition that the number of the uplink channel resources in the second target uplink channel resource set is larger than a second threshold value, determining the time-frequency resources corresponding to the uplink channel resources based on the uplink channel resources and an uplink channel resource indication of the second threshold value selected from the second target uplink channel resource set.

Specifically, when the number of uplink channel resources in the second target uplink channel resource set exceeds the second threshold a (for example, more than 8), only the first a uplink channel resources in this second target uplink channel resource set may be selected to apply PRI, optionally, the PRI indicates that the number of occupied bits is ceiling (log 2 (a)) (when a is 8, 3 bits may be kept unchanged).

Optionally, a second threshold number of uplink channel resources selected from the second set of target uplink channel resources is determined based on any one of:

a second threshold uplink channel resource from the starting position in the second target uplink channel resource set;

and a second threshold number of uplink channel resources in the second set of target uplink channel resources starting from the first offset value.

Specifically, when the number of uplink channel resources related to the tail part of the second target uplink channel resource set is less than a second threshold value from the predefined offset value, continuing to select from the starting position of the second target uplink channel resource set until the second threshold value of uplink channel resources is selected.

Optionally, an offset value Resource offset may be configured for different terminals, and an Index of an uplink channel Resource indicated by a certain PRI value in the subset is Resource index= (pri+resource offset) mode a, so as to achieve a certain balanced use effect of resources. The ResourceOffset here corresponds to the first offset value described above.

In the above embodiment, when determining using one uplink channel resource indication, for Case 1, a corresponding uplink channel resource may be determined from one uplink channel resource set based on the indicated one uplink channel resource indication, that is, based on the collision information of the sub-band corresponding to the first target time domain unit or the first target time domain unit, and the first uplink channel resource set, and the second target uplink channel resource set may be determined; based on the second target uplink channel resource set and one uplink channel resource indication, the time-frequency resource corresponding to the uplink channel resource can be determined, so that the conflict of the uplink resource for feeding back the HARQ-ACK can be avoided or reduced, and the time delay performance of the HARQ-ACK feedback is improved.

Another implementation b:

when a PRB occupied by a first time-frequency resource is only located in one sub-band, a time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, and each HARQ-ACK load range corresponds to one uplink channel resource set, determining the uplink channel resource based on the first uplink channel resource set and one uplink channel resource indication; determining a time-frequency resource corresponding to the uplink channel resource based on the uplink channel resource and a sub-band corresponding to the first target time domain unit;

specifically, the first set of uplink channel resources is the same as that in the mode a, and will not be described here again. For the resource allocation mode 2, a predefined DG HARQ-ACK feedback mechanism may be directly used to determine an uplink channel resource, and determine, based on a sub-band used in the first target time domain unit, a time-frequency resource corresponding to the uplink channel resource in the sub-band.

In the above embodiment, when determining using one uplink channel resource indication, for Case 1, a corresponding uplink channel resource may be determined from an uplink channel resource set based on the indicated one uplink channel resource indication, and based on the uplink channel resource and the sub-band corresponding to the first target time domain unit, a time-frequency resource corresponding to the uplink channel resource may be determined, so that collision of the uplink resource for feeding back HARQ-ACK may be avoided or reduced, and the latency performance of HARQ-ACK feedback may be improved.

Another implementation c:

under the condition that each HARQ-ACK load range corresponds to a plurality of uplink channel resource sets, determining a second uplink channel resource set based on a sub-band corresponding to the first target time domain unit; and determining the time-frequency resource corresponding to the uplink channel resource based on the second uplink channel resource set and one uplink channel resource indication.

Specifically, the HARQ-ACK load range corresponding to the actual HARQ-ACK load is determined based on the actually transmitted HARQ-ACK load, and a plurality of uplink channel resource sets corresponding to the actual HARQ-ACK load range are determined based on the HARQ-ACK load range, that is, for Set configuration mode 2, based on the subband corresponding to the first target time domain unit, an uplink channel resource Set corresponding to the subband in the plurality of uplink channel resource sets is selected as the second uplink channel resource Set.

Further, a predefined DG HARQ-ACK feedback mechanism is used to determine an uplink channel resource and/or corresponding time-frequency resource based on the second set of uplink channel resources.

In the above embodiment, when determining using one uplink channel resource indication, for Case 1, the second uplink channel resource set may be determined based on the sub-band corresponding to the first target time domain unit; based on the second uplink channel resource set and one uplink channel resource indication, determining the time-frequency resource corresponding to the uplink channel resource, avoiding or reducing the conflict of the uplink resource for feeding back the HARQ-ACK, and improving the time delay performance of the HARQ-ACK feedback.

Optionally, the sub-band corresponding to the first target time domain unit satisfies any one of the following:

the sub-band is a sub-band explicitly indicated in downlink control information DCI;

the sub-band is a sub-band with the minimum or maximum index, wherein the conflict degree of the uplink channel resources or the time-frequency resources determined based on the uplink channel resource indication meets a second condition;

the sub-band is a sub-band corresponding to one uplink transmission with the minimum interval time of the first target time domain unit;

the subbands are semi-statically configured by higher layer signaling.

Specifically, in order to determine the sub-band used in the first target time domain unit, any of the following modes may be adopted:

subband determination mode 1: explicit indication in the scheduling DCI;

optionally, in the case that the subband is a subband explicitly indicated in the downlink control information DCI, the first indication field in the DCI is used to independently indicate the subband; or alternatively, the first and second heat exchangers may be,

the second indication field in the DCI is used to jointly indicate the subband and first information, where the first information is at least one of: uplink channel resource indication, K1 value.

Specifically, the used subbands may be indicated by an independent defined indication field in the scheduling DCI. The indication field in the scheduling DCI may be configured by higher layer signaling whether it is present or not, e.g. when it is not present, the used sub-band may be a configuration value or a default value (e.g. the first sub-band), and when it is present, the corresponding number of bits may be ceiling (log 2 (number of sub-bands)).

Or, for example, the first information is jointly indicated with a PRI indication field or a K1 indicator indication field in the scheduling DCI, that is, the second indication field may be an existing indication field, and is used for jointly indicating the sub-band and the first information, where the first information is at least one of the following: the number of bits occupied by the second indication field may be optionally extended as required with respect to the number of bits occupied by the PRI indication field or the K1 value indication field.

Subband determination mode 2:

the sub-band is a sub-band with the smallest or largest index, for which the degree of collision of the uplink channel resources or the time-frequency resources determined based on the uplink channel resource indication satisfies the second condition.

Optionally, the second condition is any one of:

no conflict exists in uplink channel resources or time-frequency resources;

the ratio of the illegal resource unit RE number to the total RE number in the uplink channel resource or the time-frequency resource is smaller than or equal to a first threshold;

the illegal resource unit RE number in the uplink channel resource or the time-frequency resource is smaller than or equal to a second threshold;

the legal number of resource elements RE in the uplink channel resource or the time-frequency resource is larger than or equal to a third threshold.

Specifically, for the used sub-band, it is required that the degree of collision of the uplink channel resources and/or the time-frequency resources corresponding to this sub-band, which is determined based on the uplink channel resource indication, satisfies a predefined requirement (i.e., a second condition), and when more than one sub-band satisfying the above second condition, the sub-band with the smallest or largest Index is taken as the used sub-band.

Alternatively, an offset value sub and offset may be configured for the terminal. When more than one subband satisfies the second condition, the subbands are ordered from small to large or from large to small, and the subband of the sub-offset number (assuming counting from 0) in the ordered queue is taken. Different terminals can correspond to different sub and offsets so as to achieve a certain resource balance using effect.

Subband determination mode 3:

the sub-band is a sub-band corresponding to one uplink transmission with the minimum time interval of the first target time domain unit.

It will be appreciated that the time domain unit in which the most recent uplink channel transmission is located before the first target time domain unit. The uplink channel transmission herein may be an uplink channel transmission actually initiated by the terminal and/or all configured or scheduled uplink channels (corresponding transmissions are not actually necessarily initiated).

Subband determination method 4:

the subbands are semi-statically configured by higher layer signaling.

Optionally, in the case that the sub-band is semi-statically configured by the higher layer signaling, the higher layer signaling is used to directly configure the sub-band corresponding to the first target time domain unit; or alternatively, the first and second heat exchangers may be,

the higher layer signaling is used for configuring a sub-band mode, and the sub-band mode is used for indicating a sub-band where uplink channel resources are located in at least one time domain unit.

Specifically, any of the following modes may be adopted:

subband determination mode 4-1: directly configuring the used sub-band by high-layer signaling;

subband determination mode 4-2: configuring a subband Pattern (Pattern) by higher layer signaling;

the subband pattern is used to determine the subband in which the uplink channel is transmitted in any time domain unit (slot, symbol, etc.) and may be semi-statically configured by RRC and/or indicated by DCI (similar to SFI). For example, the subband mode is directly configured by RRC; alternatively, after RRC semi-static configuration of the sub-band mode, some or all of the information of the sub-band mode may be modified by UE Specific DCI or Group common DCI; alternatively, the subband pattern applied in a certain time domain period is indicated by UE Specific DCI or Group Common DCI.

In the above embodiment, the sub-band corresponding to the first target time domain unit may be determined based on a plurality of sub-band determining manners, so that flexibility is high, and the terminal may determine the sub-band based on configuration and/or indication of the network side device, so that implementation complexity is low, and understanding consistency on both sides may be ensured.

Optionally, for Case 2, in the Case of determining based on one uplink channel resource indication, there are several implementations as follows:

One implementation d:

step 101 may be implemented as follows:

under the condition that each HARQ-ACK load range corresponds to one uplink channel resource set, the terminal determines uplink channel resources based on the first uplink channel resource set and one uplink channel resource indication, and determines time-frequency resources corresponding to the uplink channel resources; the first uplink channel resource set is an uplink channel resource set corresponding to the transmitted HARQ-ACK load;

step 102 may be implemented as follows:

and the terminal uses at least one of the time-frequency resources corresponding to the uplink channel resources to perform HARQ-ACK feedback.

Specifically, for Case 2, based on the indicated one uplink channel resource indication, corresponding uplink channel resources are determined from one uplink channel resource Set (in Set configuration mode 1), and each uplink channel resource corresponds to a plurality of time-frequency resources (in resource configuration mode 2).

Another implementation e:

step 101 may be implemented as follows:

under the condition that each HARQ-ACK load range corresponds to a plurality of uplink channel resource sets, the terminal determines one uplink channel resource corresponding to each second uplink channel resource set as an uplink channel resource based on the plurality of second uplink channel resource sets and one uplink channel resource indication, and determines a time-frequency resource corresponding to the uplink channel resource; the second uplink channel resource set is an uplink channel resource set corresponding to the transmitted HARQ-ACK load;

Step 102 may be implemented as follows:

The uplink channel resource in implementation e may be a plurality of uplink channel resources.

Specifically, for Case 2, a corresponding uplink channel resource is determined from a plurality of uplink channel resource sets (in Set configuration mode 2) based on the indicated one uplink channel resource indication, and each uplink channel resource corresponds to one or more time-frequency resources (in resource configuration mode 1 or resource configuration mode 2-1).

Optionally, the terminal performs HARQ-ACK feedback by using at least one of the time-frequency resources corresponding to the uplink channel resource, including:

the terminal feeds back HARQ-ACK based on each time-frequency resource in the time-frequency resources corresponding to the uplink channel resources; or alternatively, the first and second heat exchangers may be,

and the terminal performs HARQ-ACK feedback based on at least one time-frequency resource in the time-frequency resources corresponding to the uplink channel resources.

For the determined multiple time-frequency resources, the terminal may initiate corresponding uplink channel transmission based on each time-frequency resource (i.e., all of the determined time-frequency resources), or initiate corresponding uplink channel transmission based on at least one of the time-frequency resources (only a portion of the determined time-frequency resources may be used), or initiate corresponding uplink channel transmission based on only one of the time-frequency resources (one of which is selected). For the latter two modes, the network side can determine the time-frequency resources used by the terminal based on blind detection, and receive the HARQ-ACK fed back by the terminal on the time-frequency resources.

Optionally, in the case of determining based on a plurality of uplink channel resource indications, that is, in the case of determining uplink channel resources by using a plurality of uplink channel resource indications, the DCI includes a plurality of indication fields of uplink channel resource indications, where each indication field of uplink channel resource indication corresponds to one subband, and the indication field of uplink channel resource indication is used to indicate uplink channel resources and/or time-frequency resources corresponding to the subband.

Specifically, the method for determining the multiple uplink channel resource indications is only applicable to Case 2, and at this time, there are multiple indication domains of the uplink channel resource indications in the downlink scheduling DCI, where each indication domain of the uplink channel resource indication corresponds to one subband, so as to indicate one uplink channel resource and/or time-frequency resource in the uplink channel resource set corresponding to the subband.

The indication mode of the multiple uplink channel resource indications is applicable to the Set configuration mode 2; when the method is matched with the Set configuration mode 2-1, an indication domain of a certain uplink channel resource indication indicates one uplink channel resource in an uplink channel resource Set corresponding to a corresponding sub-band; when used in combination with Set configuration scheme 2-2, the indication field of an uplink channel resource indication indicates one time-frequency resource (corresponding to resource ID scheme 1) or one uplink channel resource (corresponding to resource ID scheme 2) in the uplink channel resource Set corresponding to the corresponding subband.

Optionally, for SPS HARQ-ACK, the uplink channel resource is an uplink channel resource determined based on the first parameter or the second parameter; the first parameter is used for indicating uplink channel resources, and the second parameter is used for indicating an uplink channel resource list, wherein the uplink channel resource list comprises a plurality of uplink channel resources.

Specifically, the first parameter may be indicated by n1PUCCH-AN and the second parameter may be indicated by sps-PUCCH-AN-List-r 16.

Alternatively, for SPS HARQ-ACK, when multiplexed with DG HARQ-ACK, uplink channel resources corresponding to DG HARQ-ACK are used based on HARQ-ACK codebook after multiplexing, see the content of HARQ-ACK resource allocation and feedback in the foregoing embodiments.

Alternatively, in the case that the uplink channel resource is determined based on the first parameter, step 102 may be implemented as follows:

in the case that the PRB occupied by the first time-frequency resource is located in only one sub-band, and the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, step 101 may be implemented as follows:

And the terminal determines uplink channel resources corresponding to the first parameter and time-frequency resources corresponding to the uplink channel resources in the sub-frequency bands based on the sub-frequency bands corresponding to the second target time domain units.

Specifically, in the foregoing flexible duplex mode, for the first parameter, case 1: determining a time-frequency resource condition:

when the frequency domain resource allocation mode 1 is applied, or the frequency domain resource allocation mode 2 is applied and the resource allocation mode 1 is adopted, a predefined SPS HARQ-ACK feedback mechanism can be directly used to determine uplink channel resources corresponding to the first parameter and corresponding time-frequency resources, and the terminal uses the unique time-frequency resources corresponding to the uplink channel resources to perform HARQ-ACK feedback.

When the frequency domain resource allocation method 2 is applied and the resource allocation method 2 is adopted, a time-frequency resource corresponding to the uplink channel resource corresponding to the first parameter in the sub-band can be determined based on the sub-band corresponding to the second target time-domain unit (i.e., the sub-band used in the second target time-domain unit).

The aforementioned subband determination mode 1, 3 or 4 may be employed when determining the subband corresponding to the second target time domain unit, and the scheduling DCI may be replaced with the activation DCI for SPS PDSCH transmission when employing subband determination mode 1.

Alternatively, for Case 2, in the Case that the uplink channel resource is determined based on the first parameter, step 102 may be implemented based on the following manner:

and under the condition that the PRB occupied by the first time-frequency resource is only located in one sub-band and the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, the terminal uses at least one of the time-frequency resources corresponding to the uplink channel resources to perform HARQ-ACK feedback.

Optionally, the terminal performs HARQ-ACK feedback using at least one of time-frequency resources corresponding to the uplink channel resources, including:

Specifically, for the Case where the first parameter indicates the uplink channel resource, case 2 is only applicable to the Case where the frequency domain resource allocation scheme 2 is applied and the resource allocation scheme 2 is adopted, and at this time, the uplink channel resource corresponding to the first parameter has corresponding time-frequency resources in a plurality of sub-bands.

Optionally, in the case that the uplink channel resource is determined based on the second parameter, the second parameter is configured in any of the following ways:

configuring an uplink channel resource list; or alternatively, the first and second heat exchangers may be,

a plurality of uplink channel resource lists are configured, each uplink channel resource list corresponding to one sub-band.

Specifically, for convenience of the following description, the above two modes are respectively denoted as list arrangement 1 and list arrangement 2.

List configuration mode 1: configuring an uplink channel resource list;

for the frequency domain configuration of each uplink channel resource in the uplink channel resource list, frequency domain resource configuration mode 1 or frequency domain resource configuration mode 2 may be applied.

When the frequency domain resource allocation scheme 2 is applied, each uplink channel resource in the uplink channel resource list may be configured in either the resource allocation scheme 1 or the resource allocation scheme 2.

When the resource allocation mode 2 is adopted, each uplink channel resource in the uplink channel resource list has corresponding time-frequency resources in a plurality of sub-bands.

List configuration mode 2: a plurality of uplink channel resource lists are configured, each uplink channel resource list corresponding to one sub-band.

Wherein a set of subbands (comprising one to more subbands; hereinafter referred to as a list-available set of subbands) for which a list of uplink channel resources exists may be determined based on at least one of the sets of subbands 1, 2, 3 and 4.

For the frequency domain configuration of each uplink channel resource in the uplink channel resource list, only frequency domain resource configuration mode 2 is applied.

Optionally, for list configuration mode 2, a plurality of uplink channel resource lists are configured based on any one of the following modes:

respectively configuring corresponding uplink channel resource lists for each sub-band in the available sub-bands corresponding to the uplink channel resource lists; or alternatively, the first and second heat exchangers may be,

and mapping the uplink channel resource list corresponding to each sub-band based on the frequency domain position of each sub-band in the available sub-bands corresponding to the uplink channel resource lists and the target uplink channel resource list.

Specifically, for convenience of the following description, the above two modes are respectively denoted as list configuration mode 2-1 and list configuration mode 2-2.

In the list configuration mode 2-1, corresponding uplink channel resource lists are configured for each sub-band in the list available sub-band set, that is, uplink channel resource lists (including each uplink channel resource in the uplink channel resource list) corresponding to each sub-band are independently configured, and only each uplink channel resource in the uplink channel resource list can be configured in the resource configuration mode 1.

List configuration mode 2-2: and configuring a target uplink channel resource list, and respectively mapping uplink channel resource lists corresponding to the sub-bands on the basis of the target uplink channel resource list based on the frequency domain positions of the sub-bands in the list available sub-band set.

Specifically, each uplink channel resource included in each uplink channel resource list determines a corresponding time-frequency resource based on the resource allocation method 2-1 (and allocation information of a corresponding uplink channel resource in one configured uplink channel resource list), respectively. When determining the corresponding uplink channel resources and the corresponding time-frequency resources (belonging to the uplink channel resource list corresponding to the sub-band) of the uplink channel resources in the list available sub-band set, the frequency domain offset mode 1 or the frequency domain offset mode 2 (only the resource available sub-band set is replaced by the list available sub-band set) can be used, and the time-frequency resources corresponding to the uplink channel resources correspond to the same resource ID, that is, the time-frequency resources correspond to one uplink channel resource (resource ID mode 1). Alternatively, the target IDs corresponding to the uplink channel resources may be determined based on the IDs of the corresponding configured uplink channel resources and predefined rules, respectively, for example, the IDs of the uplink channel resources corresponding to the subbands with index m in the list available subband set are set as follows: target id+m (resource ID scheme 2).

Alternatively, step 101 may be implemented as follows:

the terminal determines uplink channel resources from at least one uplink channel resource list based on the transmitted HARQ-ACK load, and determines time-frequency resources corresponding to the uplink channel resources.

Specifically, here, the HARQ-ACK load may be understood as the number of SPS HARQ-ACK bits, similar to the aforementioned DGHARQ-ACK load meaning.

Optionally, for Case 1, based on the HARQ-ACK load of the transmission, the corresponding uplink channel resource is determined from one uplink channel resource list.

For list configuration mode 1, the predefined SPSHARQ-ACK feedback mechanism may be directly followed when frequency domain resource configuration mode 1 is applied.

For list configuration mode 1, when frequency domain resource configuration mode 2 is applied:

for the resource allocation mode 1, a predefined SPS HARQ-ACK feedback mechanism may be directly used to determine an uplink channel resource and a corresponding time-frequency resource.

For resource allocation 2, a predefined SPS HARQ-ACK feedback mechanism may be directly used to determine an uplink channel resource, i.e., step 102 may be implemented as follows:

the terminal uses one of the time-frequency resources corresponding to the uplink channel resources to carry out HARQ-ACK feedback;

Step 101 may be implemented as follows:

when the PRB occupied by the first time-frequency resource is only located in one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, and the second parameter corresponds to one uplink channel resource list, determining the uplink channel resource from the one uplink channel resource list based on the transmitted HARQ-ACK load; and determining the time-frequency resource corresponding to the uplink channel resource based on the uplink channel resource and the sub-frequency band corresponding to the second target time domain unit.

Specifically, based on the sub-band used in the second target time domain unit, that is, the sub-band corresponding to the second target time domain unit, a time-frequency resource corresponding to the uplink channel resource in the sub-band is determined.

For list configuration 2, a list of uplink channel resources corresponding to the sub-band may be determined based on the sub-band used in the second target time domain unit, and an uplink channel resource and/or time-frequency resource may be determined based on the list of uplink channel resources, e.g., a predefined SPS HARQ-ACK feedback mechanism may be used.

I.e. step 101 may be implemented as follows:

under the condition that the second parameter corresponds to a plurality of uplink channel resource lists, determining an uplink channel resource list corresponding to a sub-band based on the sub-band corresponding to the second target time domain unit; and determining uplink channel resources from an uplink channel resource list corresponding to the sub-band based on the transmitted HARQ-ACK load, and determining time-frequency resources corresponding to the uplink channel resources in the sub-band.

Alternatively, for Case 2, step 101 may be implemented as follows:

under the condition that the second parameter corresponds to one uplink channel resource list, determining the uplink channel resource from the one uplink channel resource list based on the transmitted HARQ-ACK load, and determining a time-frequency resource corresponding to the uplink channel resource; or alternatively, the first and second heat exchangers may be,

and under the condition that the second parameter corresponds to a plurality of uplink channel resource lists, based on the transmitted HARQ-ACK load, respectively determining a corresponding one of the uplink channel resource lists from each of the plurality of uplink channel resource lists, wherein the corresponding one of the uplink channel resource lists is used as the uplink channel resource, and determining the time-frequency resource corresponding to the uplink channel resource.

Specifically, for Case 2, determining corresponding uplink channel resources from an uplink channel resource list (adopting a list configuration mode 1) based on SPS HARQ-ACK load, wherein each uplink channel resource corresponds to a plurality of time-frequency resources (adopting a resource configuration mode 2); or determining corresponding uplink channel resources from a plurality of uplink channel resource lists (adopting a list configuration mode 2) based on the SPS HARQ-ACK load, wherein each uplink channel resource corresponds to one or a plurality of time-frequency resources (adopting a resource configuration mode 1 or a resource configuration mode 2-1).

Alternatively, step 102 may be implemented as follows:

Optionally, the terminal performs HARQ-ACK feedback based on each time-frequency resource in the time-frequency resources corresponding to the uplink channel resources; or alternatively, the first and second heat exchangers may be,

Specifically, for the determined multiple time-frequency resources, the terminal may initiate corresponding uplink channel transmission based on each time-frequency resource (i.e., all time-frequency resources), or initiate corresponding uplink channel transmission based on at least one of the time-frequency resources (only a portion of the time-frequency resources may be used), or initiate corresponding uplink channel transmission based on only one of the time-frequency resources (one of which is selected). For the latter two modes, the network side device can determine the time-frequency resources used by the terminal based on blind detection, and receive the HARQ-ACK fed back by the terminal on the time-frequency resources.

Optionally, the sub-band corresponding to the second target time domain unit satisfies any one of the following:

the sub-band is a sub-band explicitly indicated in the activated DCI transmitted by the SPS PDSCH;

The sub-band is a sub-band corresponding to one uplink transmission with the minimum interval time of the second target time domain unit;

the sub-bands are semi-statically configured by higher layer signaling.

The sub-band corresponding to the second target time domain unit may be determined by using the aforementioned sub-band determining manners 1 (the scheduling DCI is replaced with the activating DCI transmitted by the SPSPDSCH), 3, and 4, which are specifically referred to the description of the foregoing embodiments and are not repeated herein.

Fig. 8 is a second flowchart of a HARQ-ACK feedback method according to an embodiment of the present application. As shown in fig. 8, the HARQ-ACK feedback method of the present embodiment includes:

step 201, the network side device receives HARQ-ACK fed back by the terminal, where the HARQ-ACK is fed back by the terminal based on time-frequency resources corresponding to uplink channel resources, and the time-frequency resources occupy resources in at least one available sub-band.

Optionally, the uplink channel resource corresponds to at least one time-frequency resource;

the first time-frequency resource is configured based on any one of the following ways:

the PRB occupied by the first time-frequency resource is only located in one sub-band;

wherein, the first time-frequency resource is any one of time-frequency resources corresponding to the uplink channel resource.

Optionally, in a case that the PRB occupied by the first time-frequency resource is located in only one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in one sub-band.

Optionally, in a case that the PRB occupied by the first time-frequency resource is located in only one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands.

Optionally, the available sub-band occupied by the time-frequency resource satisfies any one of the following:

wherein N1 and N2 are integers greater than 0.

Optionally, the first condition includes at least one of:

the frequency domain bandwidth corresponding to the sub-frequency band is greater than or equal to a first threshold value;

The sub-band has an uplink time domain unit or flexible time domain unit greater than or equal to a first proportion within a first time domain period.

Optionally, for any one of the available subbands occupied by the time-frequency resources corresponding to the uplink channel resources for feeding back HARQ-ACK, the time-frequency resources corresponding to the uplink channel resources in the subband are determined based on the time-frequency domain parameters, the uplink channel transmission attribute and the subband frequency domain information;

the time-frequency domain parameters and the uplink channel transmission attributes are uniformly configured for all time-frequency resources corresponding to the uplink channel resources; or, the time-frequency domain parameters and the uplink channel transmission attribute are configured independently for each time-frequency resource corresponding to the uplink channel resource.

Optionally, the subband-frequency domain information includes any one of:

the first frequency domain offset applied by the sub-band and the frequency domain position corresponding to the sub-band;

the first frequency domain offset represents a frequency domain offset of a first target frequency domain position of a corresponding time-frequency resource of the uplink channel resource in the sub-band relative to a second target frequency domain position of the sub-band, or a frequency domain offset of a first target frequency domain position of a corresponding time-frequency resource of the uplink channel resource in the sub-band relative to a second target frequency domain position of a first serving cell or a first BWP;

And the frequency domain position corresponding to the sub-band represents a first target frequency domain position of the time-frequency resource corresponding to the uplink channel resource in the sub-band.

Optionally, the first target frequency domain location includes: the first frequency domain unit or the last frequency domain unit occupied by the time-frequency resource;

Optionally, the first frequency domain offset is M frequency domain units, M is an integer greater than or equal to 0, and the first frequency domain offset satisfies any one of the following:

the first frequency domain offset corresponding to at least one sub-band in the available sub-bands is different from the first frequency domain offsets corresponding to other sub-bands in the available sub-bands, and the first frequency domain offset applied by at least one time-frequency resource in the time-frequency resources corresponding to the uplink channel resources is different from the first frequency domain offsets applied by other time-frequency resources in the time-frequency resources.

Optionally, before the network side device receives the HARQ-ACK fed back by the terminal, the method further includes:

The network side equipment configures an uplink channel resource set based on any one of the following modes, wherein the uplink channel resource set comprises the uplink channel resources:

each HARQ-ACK load range corresponds to an uplink channel resource set;

Optionally, the uplink channel resource is determined based on an uplink channel resource indication; the uplink channel resource indication is any one of the following:

an uplink channel resource indication;

Multiple uplink channel resource indications.

Alternatively, the process may be carried out in a single-stage,

the sub-band corresponding to the first target time domain unit satisfies any one of the following:

the sub-bands are semi-statically configured by higher layer signaling.

Optionally, in the case that a subband corresponding to the first target time domain unit is explicitly indicated in downlink control information DCI, a first indication domain in the DCI is used for independently indicating the subband; or alternatively, the first and second heat exchangers may be,

the second indication field in the DCI is used to jointly indicate the subband and first information, where the first information is at least one of the following: uplink channel resource indication, K1 value.

Optionally, in the case that the sub-band corresponding to the first target time domain unit is configured semi-statically by a higher layer signaling, the higher layer signaling is used to directly configure the sub-band corresponding to the first target time domain unit; or alternatively, the first and second heat exchangers may be,

The higher layer signaling is used for configuring a sub-band mode, and the sub-band mode is used for indicating a sub-band where an uplink channel resource is located in at least one time domain unit.

Optionally, in the case of determining based on a plurality of uplink channel resource indications, the DCI includes a plurality of indication domains of uplink channel resource indications, each indication domain of the uplink channel resource indication corresponds to a subband, and the indication domain of the uplink channel resource indication is used for indicating uplink channel resources and/or time-frequency resources corresponding to the subband.

Optionally, the uplink channel resource is an uplink channel resource determined based on the first parameter or the second parameter; the first parameter is used for indicating uplink channel resources, and the second parameter is used for indicating an uplink channel resource list, wherein the uplink channel resource list comprises a plurality of uplink channel resources.

Optionally, in a case that the uplink channel resource is determined based on a second parameter, the second parameter is configured in any of the following manners:

Optionally, the method further comprises:

The network side equipment configures a plurality of uplink channel resource lists based on any one of the following modes:

respectively configuring corresponding uplink channel resource lists for all sub-bands in the available sub-bands corresponding to the uplink channel resource lists; or alternatively, the first and second heat exchangers may be,

The specific implementation process and technical effects of the method of the present embodiment are similar to those of the terminal side method embodiment, and specific reference may be made to the detailed description of the terminal side method embodiment, which is not repeated herein.

The execution body of the HARQ-ACK feedback method provided by the embodiment of the application can be an HARQ-ACK feedback device. In the embodiment of the application, the HARQ-ACK feedback device is taken as an example to execute the HARQ-ACK feedback method.

Fig. 9 is a schematic structural diagram of an HARQ-ACK feedback device according to the present application. As shown in fig. 9, the HARQ-ACK feedback device provided in this embodiment includes:

a processing module 110, configured to determine a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; the time-frequency resource occupies resources in at least one available sub-band;

And the sending module 120 is configured to perform HARQ-ACK feedback based on the time-frequency resource.

wherein N1 and N2 are integers greater than 0.

Optionally, the first condition includes at least one of:

Optionally, the processing module 110 is specifically configured to:

for any one of the available sub-bands occupied by the time-frequency resource, determining the time-frequency resource corresponding to the uplink channel resource in the sub-band based on the time-frequency domain parameter, the uplink channel transmission attribute and the sub-band frequency domain information;

Optionally, the subband-frequency domain information includes any one of:

each HARQ-ACK load range corresponds to an uplink channel resource set;

an uplink channel resource indication;

multiple uplink channel resource indications.

Optionally, in the case of determining based on an uplink channel resource indication, the sending module 120 is specifically configured to:

performing HARQ-ACK feedback by using one of the time-frequency resources corresponding to the uplink channel resources;

the processing module 110 is specifically configured to:

when the PRB occupied by the first time-frequency resource is only located in one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in one sub-band, and each HARQ-ACK load range corresponds to one uplink channel resource set, determining a second target uplink channel resource set based on the sub-band corresponding to the first target time domain unit or conflict information of the first target time domain unit and the first uplink channel resource set; determining a time-frequency resource corresponding to the uplink channel resource based on the second target uplink channel resource set and the one uplink channel resource indication; the first uplink channel resource set is an uplink channel resource set corresponding to a transmitted HARQ-ACK load;

Or alternatively, the first and second heat exchangers may be,

when the PRB occupied by the first time-frequency resource is only located in one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, and each HARQ-ACK load range corresponds to one uplink channel resource set, determining the uplink channel resource based on the first uplink channel resource set and the one uplink channel resource indication; determining a time-frequency resource corresponding to the uplink channel resource based on the uplink channel resource and a sub-band corresponding to a first target time-domain unit;

or alternatively, the first and second heat exchangers may be,

under the condition that each HARQ-ACK load range corresponds to a plurality of uplink channel resource sets, determining a second uplink channel resource set based on a sub-band corresponding to the first target time domain unit; and determining the time-frequency resource corresponding to the uplink channel resource based on the second uplink channel resource set and the one uplink channel resource indication.

Optionally, the processing module 110 is specifically configured to:

and under the condition that the number of the uplink channel resources in the second target uplink channel resource set is larger than a second threshold value, determining the time-frequency resource corresponding to the uplink channel resources based on the second threshold value uplink channel resources selected from the second target uplink channel resource set and the PRI indication.

Optionally, the processing module 110 is specifically configured to:

determining the second threshold uplink channel resources selected from the second set of target uplink channel resources based on any one of:

the second threshold uplink channel resources from the starting position in the second target uplink channel resource set;

and the second threshold uplink channel resources from the first offset value in the second target uplink channel resource set.

the sub-bands are semi-statically configured by higher layer signaling.

Optionally, in the case that the subband is a subband explicitly indicated in the downlink control information DCI, a first indication field in the DCI is used to independently indicate the subband; or alternatively, the first and second heat exchangers may be,

Optionally, the second condition is any one of the following:

the uplink channel resource or the time-frequency resource has no conflict;

and the legal resource unit RE number in the uplink channel resource or the time-frequency resource is greater than or equal to a third threshold.

Optionally, in the case that the sub-band is semi-statically configured by a higher layer signaling, the higher layer signaling is configured to directly configure the sub-band corresponding to the first target time domain unit; or alternatively, the first and second heat exchangers may be,

Optionally, in the case of determining based on an uplink channel resource indication, the processing module 110 is specifically configured to:

Under the condition that each HARQ-ACK load range corresponds to one uplink channel resource set, determining the uplink channel resource based on a first uplink channel resource set and one uplink channel resource indication, and determining a time-frequency resource corresponding to the uplink channel resource; the first uplink channel resource set is an uplink channel resource set corresponding to a transmitted HARQ-ACK load; or alternatively, the first and second heat exchangers may be,

under the condition that each HARQ-ACK load range corresponds to a plurality of uplink channel resource sets, the terminal determines one uplink channel resource corresponding to each second uplink channel resource set as the uplink channel resource based on a plurality of second uplink channel resource sets and the one uplink channel resource indication, and determines a time-frequency resource corresponding to the uplink channel resource; the second uplink channel resource set is an uplink channel resource set corresponding to the transmitted HARQ-ACK load;

the sending module 120 is specifically configured to:

and carrying out HARQ-ACK feedback by using at least one of the time-frequency resources corresponding to the uplink channel resources.

Optionally, the sending module 120 is specifically configured to:

performing HARQ-ACK feedback based on each time-frequency resource in the time-frequency resources corresponding to the uplink channel resources; or alternatively, the first and second heat exchangers may be,

And carrying out HARQ-ACK feedback based on at least one time-frequency resource in the time-frequency resources corresponding to the uplink channel resources.

Optionally, in the case that the uplink channel resource is determined based on the first parameter, the sending module 120 is specifically configured to:

in the case that the PRB occupied by the first time-frequency resource is located in only one sub-band and the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, the processing module 110 is specifically configured to:

And determining uplink channel resources corresponding to the first parameter based on the sub-frequency band corresponding to the second target time domain unit, and determining time-frequency resources corresponding to the uplink resources in the sub-frequency band.

and when the PRB occupied by the first time-frequency resource is only located in one sub-band and the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, performing HARQ-ACK feedback by using at least one of the time-frequency resources corresponding to the uplink channel resource.

Optionally, the sending module 120 is specifically configured to:

the terminal carries out HARQ-ACK feedback based on each time-frequency resource in the time-frequency resources corresponding to the uplink channel resources; or alternatively, the first and second heat exchangers may be,

Optionally, the plurality of uplink channel resource lists are configured based on any one of the following manners:

Optionally, the processing module 110 is specifically configured to:

and determining the uplink channel resources from at least one uplink channel resource list based on the transmitted HARQ-ACK load, and determining the time frequency resources corresponding to the uplink channel resources.

Optionally, the sending module 120 is specifically configured to:

the processing module 110 is specifically configured to:

when the PRB occupied by the first time-frequency resource is located in only one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, and the second parameter corresponds to one uplink channel resource list, determining the uplink channel resource from the one uplink channel resource list based on the transmitted HARQ-ACK load; determining a time-frequency resource corresponding to the uplink channel resource based on the uplink channel resource and a sub-band corresponding to a second target time-domain unit;

Or alternatively, the first and second heat exchangers may be,

under the condition that the second parameter corresponds to a plurality of uplink channel resource lists, determining an uplink channel resource list corresponding to a sub-band based on the sub-band corresponding to a second target time domain unit; and determining the uplink channel resources from an uplink channel resource list corresponding to the sub-band based on the transmitted HARQ-ACK load, and determining the corresponding time-frequency resources of the uplink channel resources in the sub-band.

the sub-bands are semi-statically configured by higher layer signaling.

Optionally, the processing module 110 is specifically configured to:

under the condition that the second parameter corresponds to one uplink channel resource list, determining the uplink channel resource from the one uplink channel resource list based on the transmitted HARQ-ACK load, and determining a time-frequency resource corresponding to the uplink channel resource;

or alternatively, the first and second heat exchangers may be,

under the condition that the second parameter corresponds to a plurality of uplink channel resource lists, based on the transmitted HARQ-ACK load, respectively determining a corresponding one of the uplink channel resource lists from each of the plurality of uplink channel resource lists, wherein the corresponding one of the uplink channel resource lists is used as the uplink channel resource, and determining a time-frequency resource corresponding to the uplink channel resource;

The sending module 120 is specifically configured to:

Optionally, the sending module 120 is specifically configured to:

The apparatus of the present embodiment may be used to execute the method of any one of the foregoing terminal side method embodiments, and specific implementation processes and technical effects of the apparatus are similar to those of the terminal side method embodiment, and specific details of the terminal side method embodiment may be referred to in the detailed description of the terminal side method embodiment and are not repeated herein.

Fig. 10 is a second schematic structural diagram of the HARQ-ACK feedback device according to the present application. As shown in fig. 10, the HARQ-ACK feedback device provided in this embodiment includes:

and a receiving module 210, configured to receive an HARQ-ACK fed back by a terminal, where the HARQ-ACK is fed back by the terminal based on a time-frequency resource corresponding to an uplink channel resource, and the time-frequency resource occupies resources in at least one available subband.

Wherein N1 and N2 are integers greater than 0.

Optionally, the first condition includes at least one of:

Optionally, for any one of available sub-bands occupied by a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK, the time-frequency resource corresponding to the uplink channel resource in the sub-band is determined based on a time-frequency domain parameter, an uplink channel transmission attribute and sub-band frequency domain information;

Optionally, the subband-frequency domain information includes any one of:

Optionally, the apparatus further comprises:

the processing module 220 is configured to configure an uplink channel resource set, where the uplink channel resource set includes the uplink channel resources based on any one of the following manners:

each HARQ-ACK load range corresponds to an uplink channel resource set;

an uplink channel resource indication;

multiple uplink channel resource indications.

the sub-bands are semi-statically configured by higher layer signaling.

Optionally, the method further comprises:

The apparatus of the present embodiment may be used to execute the method of any one of the foregoing network side method embodiments, and specific implementation processes and technical effects of the apparatus are similar to those of the network side method embodiment, and specific details of the network side method embodiment may be referred to in the detailed description of the network side method embodiment and are not repeated herein.

The HARQ-ACK feedback device in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The HARQ-ACK feedback device provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 3 to 8, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 11, the embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102, where the memory 1102 stores a program or an instruction that can be executed on the processor 1101, for example, when the communication device 1100 is a terminal, the program or the instruction is executed by the processor 1101 to implement the steps of the HARQ-ACK feedback method embodiment, and the same technical effects can be achieved. When the communication device 1100 is a network side device, the program or the instruction, when executed by the processor 1101, implements the steps of the HARQ-ACK feedback method embodiment described above, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal which comprises a processor and a communication interface, wherein the processor is used for determining a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; and the time-frequency resource occupies resources in at least one available sub-band, and the communication interface is used for carrying out HARQ-ACK feedback based on the time-frequency resource. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 12 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1000 includes, but is not limited to: at least some of the components of the radio frequency unit 1001, the network module 1002, the audio output unit 1003, the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, and the processor 1010, etc.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 12 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1004 may include a graphics processing unit (GraphicsProcessing Unit, GPU) 10041 and a microphone 10042, where the graphics processor 10041 processes image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1001 may transmit the downlink data to the processor 1010 for processing; in addition, the radio frequency unit 1001 may send uplink data to the network side device. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area storing programs or instructions, which may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and a second storage area storing data. Further, the memory 1009 may include volatile memory or nonvolatile memory, or the memory 1009 may include both volatile and nonvolatile memory. Including high-speed random access Memory, and may also include non-volatile Memory, where the non-volatile Memory may be Read-Only Memory (ROM), programmable ROM (PROM), erasable Programmable ROM (EPROM), electrically Erasable Programmable EPROM (EEPROM), or flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). The memory 1009 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 1010 may include one or more processing units; alternatively, the processor 1010 may integrate an application processor that primarily processes operations involving an operating system, a user interface, and applications or instructions, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

Wherein, the processor 1010 is configured to determine a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK; the time-frequency resource occupies resources in at least one available sub-band;

the radio frequency unit 1001 is configured to perform HARQ-ACK feedback based on the time-frequency resource.

wherein N1 and N2 are integers greater than 0.

Optionally, the first condition includes at least one of:

Optionally, the processor 1010 is specifically configured to:

Optionally, the subband-frequency domain information includes any one of:

Each HARQ-ACK load range corresponds to an uplink channel resource set;

an uplink channel resource indication;

multiple uplink channel resource indications.

Optionally, in the case of determining based on an uplink channel resource indication, the radio frequency unit 1001 is specifically configured to:

the processor 1010 is specifically configured to:

or alternatively, the first and second heat exchangers may be,

Or alternatively, the first and second heat exchangers may be,

Optionally, the processor 1010 is specifically configured to:

the sub-bands are semi-statically configured by higher layer signaling.

Optionally, the second condition is any one of the following:

the uplink channel resource or the time-frequency resource has no conflict;

Optionally, in the case of determining based on an uplink channel resource indication, the processor 1010 is specifically configured to:

The radio frequency unit 1001 is specifically configured to:

Optionally, the radio frequency unit 1001 is specifically configured to:

Optionally, in the case that the uplink channel resource is determined based on the first parameter, the radio frequency unit 1001 is specifically configured to:

in the case that the PRB occupied by the first time-frequency resource is located in only one sub-band, and the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, the processor 1010 is specifically configured to:

Optionally, the radio frequency unit 1001 is specifically configured to:

Optionally, the processor 1010 is specifically configured to:

Optionally, the radio frequency unit 1001 is specifically configured to:

The processor 1010 is specifically configured to:

or alternatively, the first and second heat exchangers may be,

the sub-bands are semi-statically configured by higher layer signaling.

Optionally, the processor 1010 is specifically configured to:

or alternatively, the first and second heat exchangers may be,

the radio frequency unit 1001 is specifically configured to:

Optionally, the radio frequency unit 1001 is specifically configured to:

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for receiving HARQ-ACK fed back by a terminal, the HARQ-ACK is fed back by the terminal based on time-frequency resources corresponding to uplink channel resources, and the time-frequency resources occupy resources in at least one available sub-band. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 13, the access network device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 85 and a memory 85.

The antenna 81 is connected to a radio frequency device 82.

In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing.

In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The above-mentioned band processing means may be located in the baseband means 83, and the method performed by the access network device in the above embodiment may be implemented in the baseband means 83, which baseband means 83 comprises a baseband processor 85 and a memory 85.

The baseband device 83 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 13, where one chip, for example, a baseband processor 85, is connected to the memory 85 through a bus interface, so as to call a program in the memory 85, and perform the operation of the access network device shown in the foregoing method embodiment.

The access network device 800 may further comprise a network interface 86 for interacting with the radio frequency means 82, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the access network device 800 implemented by the present application further includes: instructions or programs stored in the memory 85 and capable of running on the processor 85, the processor 85 calls the instructions or programs in the memory 85 to execute the method executed by the module shown in fig. 10, and achieve the same technical effects, so that repetition is avoided and therefore they are not described herein.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the HARQ-ACK feedback method, and can achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize each process of the embodiment of the HARQ-ACK feedback method, and the same technical effect can be achieved, so that repetition is avoided, and the description is omitted here.

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

The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above embodiment of the HARQ-ACK feedback method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a communication system, which comprises: the terminal can be used for executing the steps of the HARQ-ACK feedback method, and the network side device can be used for executing the steps of the HARQ-ACK feedback method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A hybrid automatic repeat request-acknowledgement HARQ-ACK feedback method, comprising:

2. The HARQ-ACK feedback method of claim 1, wherein the uplink channel resource corresponds to at least one time-frequency resource;

3. The HARQ-ACK feedback method according to claim 2, wherein, in the case where the PRB occupied by the first time-frequency resource is located in only one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in one sub-band.

4. The HARQ-ACK feedback method according to claim 2, wherein, in the case where the PRB occupied by the first time-frequency resource is located in only one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands.

5. The HARQ-ACK feedback method of claim 4, wherein the available subbands occupied by the time-frequency resources satisfy any one of:

wherein N1 and N2 are integers greater than 0.

6. The HARQ-ACK feedback method of claim 5, wherein the first condition comprises at least one of:

7. The HARQ-ACK feedback method according to any of claims 4-6, wherein the determining, by the terminal, a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACKs, includes:

8. The HARQ-ACK feedback method of claim 7, wherein the subband-frequency domain information comprises any one of:

9. The HARQ-ACK feedback method of claim 8, wherein,

the first target frequency domain location comprises: the first frequency domain unit or the last frequency domain unit occupied by the time-frequency resource;

10. The HARQ-ACK feedback method of claim 8, wherein,

the first frequency domain offset is M frequency domain units, M is an integer greater than or equal to 0, and the first frequency domain offset satisfies any one of the following:

11. The HARQ-ACK feedback method according to any of claims 1-10, characterized in that,

the uplink channel resource set is configured in any mode, and the uplink channel resource set comprises the uplink channel resources:

each HARQ-ACK load range corresponds to an uplink channel resource set;

12. The HARQ-ACK feedback method of claim 11, wherein, in the case where each HARQ-ACK load range corresponds to a plurality of uplink channel resource sets, the plurality of uplink channel resource sets are configured in any of the following manners:

13. The HARQ-ACK feedback method of claim 11, wherein,

the uplink channel resources are determined based on uplink channel resource indications; the uplink channel resource indication is any one of the following:

an uplink channel resource indication;

multiple uplink channel resource indications.

14. The HARQ-ACK feedback method according to claim 13, wherein the terminal performs HARQ-ACK feedback based on the time-frequency resource in the case of determining based on one uplink channel resource indication, comprising:

The terminal uses one of the time-frequency resources corresponding to the uplink channel resources to perform HARQ-ACK feedback;

the terminal determines a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK, comprising:

or alternatively, the first and second heat exchangers may be,

Or alternatively, the first and second heat exchangers may be,

15. The HARQ-ACK feedback method of claim 14, wherein the determining, based on the second target set of uplink channel resources and the one uplink channel resource indication, a time-frequency resource corresponding to the uplink channel resource comprises:

16. The HARQ-ACK feedback method of claim 15, wherein the second threshold number of uplink channel resources selected from the second set of target uplink channel resources is determined based on any one of:

17. The HARQ-ACK feedback method according to any of claims 14-16, characterized in that,

the sub-bands are semi-statically configured by higher layer signaling.

18. The HARQ-ACK feedback method according to claim 17, characterized in that in case the subband is a subband explicitly indicated in downlink control information, DCI, a first indication field in the DCI is used to indicate the subband independently; or alternatively, the first and second heat exchangers may be,

19. The HARQ-ACK feedback method of claim 17, wherein the second condition is any one of:

the uplink channel resource or the time-frequency resource has no conflict;

20. The HARQ-ACK feedback method of claim 17, wherein, if the subband is semi-statically configured by higher layer signaling, the higher layer signaling is configured to directly configure the subband corresponding to the first target time domain unit; or alternatively, the first and second heat exchangers may be,

21. The HARQ-ACK feedback method according to claim 13, wherein the determining, by the terminal, a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACK in the case of determining based on one uplink channel resource indication, comprises:

Under the condition that each HARQ-ACK load range corresponds to one uplink channel resource set, the terminal determines the uplink channel resource based on a first uplink channel resource set and the one uplink channel resource indication, and determines a time-frequency resource corresponding to the uplink channel resource; the first uplink channel resource set is an uplink channel resource set corresponding to a transmitted HARQ-ACK load; or alternatively, the first and second heat exchangers may be,

the terminal performs HARQ-ACK feedback based on the time-frequency resource, and the method comprises the following steps:

22. The HARQ-ACK feedback method according to claim 21, wherein the terminal performs HARQ-ACK feedback using at least one of time-frequency resources corresponding to the uplink channel resources, comprising:

23. The HARQ-ACK feedback method according to claim 13, wherein in the case of determining based on a plurality of uplink channel resource indications, the DCI includes a plurality of indication fields of uplink channel resource indications, each of the indication fields of uplink channel resource indications corresponds to a subband, and the indication fields of uplink channel resource indications are used to indicate uplink channel resources and/or time-frequency resources corresponding to the subband.

24. The HARQ-ACK feedback method according to any of claims 1-10, characterized in that,

the uplink channel resource is determined based on the first parameter or the second parameter; the first parameter is used for indicating uplink channel resources, and the second parameter is used for indicating an uplink channel resource list, wherein the uplink channel resource list comprises a plurality of uplink channel resources.

25. The HARQ-ACK feedback method according to claim 24, wherein in the case that the uplink channel resource is determined based on the first parameter, the terminal performs HARQ-ACK feedback based on the time-frequency resource, including:

in the case that the PRB occupied by the first time-frequency resource is located in only one sub-band and the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, the determining, by the terminal, the time-frequency resource corresponding to the uplink channel resource for feeding back HARQ-ACK includes:

and the terminal determines uplink channel resources corresponding to the first parameter and time-frequency resources corresponding to the uplink resources in the sub-frequency bands based on the sub-frequency bands corresponding to the second target time-domain units.

26. The HARQ-ACK feedback method according to claim 24, wherein in the case that the uplink channel resource is determined based on the first parameter, the terminal performs HARQ-ACK feedback based on the time-frequency resource, including:

and under the condition that the PRB occupied by the first time-frequency resource is only located in one sub-band and the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands, the terminal uses at least one of the time-frequency resources corresponding to the uplink channel resource to perform HARQ-ACK feedback.

27. The HARQ-ACK feedback method according to claim 26, wherein the terminal performs HARQ-ACK feedback using at least one of time-frequency resources corresponding to the uplink channel resources, comprising:

28. The HARQ-ACK feedback method of claim 24, wherein, if the uplink channel resource is determined based on a second parameter, the second parameter is configured in any of the following manners:

29. The HARQ-ACK feedback method of claim 28, wherein the plurality of uplink channel resource lists are configured based on any one of:

30. The HARQ-ACK feedback method according to claim 28 or 29, wherein the determining, by the terminal, a time-frequency resource corresponding to an uplink channel resource for feeding back HARQ-ACKs, comprises:

the terminal determines the uplink channel resources from at least one uplink channel resource list based on the transmitted HARQ-ACK load, and determines the time-frequency resources corresponding to the uplink channel resources.

31. The HARQ-ACK feedback method of claim 30, wherein the terminal performs HARQ-ACK feedback based on the time-frequency resource, comprising:

the terminal determines the uplink channel resource from at least one uplink channel resource list based on the transmitted HARQ-ACK load, and determines a time-frequency resource corresponding to the uplink channel resource, and the method comprises the following steps:

Or alternatively, the first and second heat exchangers may be,

32. The HARQ-ACK feedback method according to claim 25 or 31, characterized in that the sub-band corresponding to the second target time domain unit satisfies any one of the following:

the sub-bands are semi-statically configured by higher layer signaling.

33. The HARQ-ACK feedback method of claim 30 wherein the determining, by the terminal, the uplink channel resources from at least one of the uplink channel resource lists based on the transmitted HARQ-ACK load, and determining the time-frequency resources corresponding to the uplink channel resources comprises:

or alternatively, the first and second heat exchangers may be,

34. The HARQ-ACK feedback method according to claim 33, wherein the terminal performs HARQ-ACK feedback using at least one of time-frequency resources corresponding to the uplink channel resources, comprising:

35. A hybrid automatic repeat request HARQ-ACK feedback method, comprising:

36. The HARQ-ACK feedback method of claim 35, wherein the uplink channel resource corresponds to at least one time-frequency resource;

37. The HARQ-ACK feedback method of claim 36, wherein, if the PRB occupied by the first time-frequency resource is located in only one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in one sub-band;

Or,

and under the condition that the PRB occupied by the first time-frequency resource is only located in one sub-band, the time-frequency resource corresponding to each uplink channel resource is located in at least two sub-bands.

38. The HARQ-ACK feedback method of claim 37, wherein the available subbands occupied by the time-frequency resources satisfy any one of:

wherein N1 and N2 are integers greater than 0.

39. The HARQ-ACK feedback method of claim 38, wherein,

for any one of available sub-bands occupied by the time-frequency resources corresponding to the uplink channel resources for feeding back the HARQ-ACK, determining the time-frequency resources corresponding to the uplink channel resources in the sub-band based on time-frequency domain parameters, uplink channel transmission attributes and sub-band frequency domain information;

40. The HARQ-ACK feedback method of claim 39, wherein the subband-frequency domain information comprises any one of:

41. The method for feeding back HARQ-ACK according to any one of claims 35-40, wherein before the network side device receives the HARQ-ACK fed back by the terminal, the method further comprises:

each HARQ-ACK load range corresponds to an uplink channel resource set;

42. The HARQ-ACK feedback method according to any of claims 35-40, characterized in that,

the sub-bands are semi-statically configured by higher layer signaling.

43. The HARQ-ACK feedback method according to any of claims 35-40, characterized in that,

44. A HARQ-ACK feedback device, comprising:

45. A HARQ-ACK feedback device, comprising:

46. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the HARQ-ACK feedback method of any of claims 1 to 34.

47. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the HARQ-ACK feedback method of any of claims 35 to 43.

48. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the HARQ-ACK feedback method according to any of claims 1 to 34, or the steps of the HARQ-ACK feedback method according to any of claims 35 to 43.