WO2024065486A1 - Procédé et appareil de construction de livre de codes harq-ack, dispositif et support de stockage - Google Patents

Procédé et appareil de construction de livre de codes harq-ack, dispositif et support de stockage Download PDF

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Publication number
WO2024065486A1
WO2024065486A1 PCT/CN2022/122847 CN2022122847W WO2024065486A1 WO 2024065486 A1 WO2024065486 A1 WO 2024065486A1 CN 2022122847 W CN2022122847 W CN 2022122847W WO 2024065486 A1 WO2024065486 A1 WO 2024065486A1
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Prior art keywords
cell
value
harq
pdsch
tdra
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PCT/CN2022/122847
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English (en)
Chinese (zh)
Inventor
张轶
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Oppo广东移动通信有限公司
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Priority to PCT/CN2022/122847 priority Critical patent/WO2024065486A1/fr
Publication of WO2024065486A1 publication Critical patent/WO2024065486A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications, and in particular to a HARQ-ACK codebook construction method, apparatus, device and storage medium.
  • a downlink control information (Downlink Control Information, DCI) schedules multiple physical downlink shared channels (Physical Downlink Shared Channel, PDSCH)
  • the hybrid automatic repeat request (HARQ)-acknowledgement (ACK) information of the multiple PDSCHs is usually fed back on a physical uplink control channel (PUCCH), and the whole of the HARQ-ACK information fed back on a PUCCH is called a HARQ-ACK codebook.
  • the HARQ-ACK codebook is divided into Type-1 HARQ-ACK codebook (i.e., semi-static HARQ-ACK codebook) and Type-2 HARQ-ACK codebook (i.e., dynamic HARQ-ACK codebook).
  • the HARQ-ACK codebook is likely to have no feedback bits reserved for other non-reference PDSCHs, resulting in the HARQ-ACK information of other non-reference PDSCHs having nowhere to be fed back.
  • the embodiment of the present application provides a HARQ-ACK codebook construction method, apparatus, device and storage medium, and the technical solution is as follows:
  • a HARQ-ACK codebook construction method comprising:
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset between PDCCH and PDSCH
  • the PDCCH carries the first DCI for scheduling at least one PDSCH
  • the at least one PDSCH corresponds to at least one cell
  • the reference PDSCH is one of the at least one PDSCH.
  • a HARQ-ACK codebook construction method comprising:
  • the first cell is any cell in a combination of multiple cells that can be scheduled by the first DCI;
  • the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • a HARQ-ACK codebook construction method comprising:
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset between PDCCH and multiple PDSCHs
  • the PDCCH carries the first DCI for scheduling the multiple PDSCHs
  • the cell combination corresponding to the multiple PDSCHs includes at least two cells
  • the reference PDSCH is one of the multiple PDSCHs.
  • a HARQ-ACK codebook construction method comprising:
  • SIV Start and Length Indicator set corresponding to the first cell based on the first Time Domain Resource Assignment (TDRA) list;
  • a HARQ-ACK codebook is received, where the HARQ-ACK codebook is constructed based on a SLIV set corresponding to the first cell; the first cell is any cell in a combination of multiple cells that can be scheduled by the first DCI.
  • a HARQ-ACK codebook construction device comprising:
  • a first determination module configured to construct a HARQ-ACK codebook based on an extended K1 set, where the extended K1 set is determined based on at least one of a K1 set and a K0 set;
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset between PDCCH and multiple PDSCHs
  • the PDCCH carries the first DCI for scheduling the multiple PDSCHs
  • the cell combination corresponding to the multiple PDSCHs includes at least two cells
  • the reference PDSCH is one of the multiple PDSCHs.
  • a HARQ-ACK codebook construction device comprising:
  • a second determination module is configured to determine a SLIV set corresponding to a first cell based on a first TDRA list; the first cell is any cell in a cell combination scheduled by a first DCI, the first TDRA list is associated with the cell combination, and the TDRA elements in the first TDRA list include SLIV values corresponding to each cell in the cell combination;
  • the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • a HARQ-ACK codebook construction device comprising:
  • a third determination module configured to determine an extended K1 set based on at least one of the K1 set and the K0 set;
  • a third receiving module is used to receive a HARQ-ACK codebook, where the HARQ-ACK codebook is constructed based on the extended K1 set;
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset between PDCCH and multiple PDSCHs
  • the PDCCH carries the first DCI for scheduling the multiple PDSCHs
  • the cell combination corresponding to the multiple PDSCHs includes at least two cells
  • the reference PDSCH is one of the multiple PDSCHs.
  • a HARQ-ACK codebook construction device comprising:
  • a fourth determination module configured to determine a SLIV set corresponding to the first cell based on the first TDRA list
  • the fourth receiving module is used to receive a HARQ-ACK codebook, where the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell; the first cell is any cell in the combination of multiple cells that can be scheduled by the first DCI.
  • a terminal comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the HARQ-ACK codebook construction method as described in the above aspect.
  • a network device comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the HARQ-ACK codebook construction method as described in the above aspects.
  • a computer-readable storage medium wherein executable instructions are stored in the computer-readable storage medium, and the executable instructions are loaded and executed by the processor to implement the HARQ-ACK codebook construction method as described in the above aspect.
  • a computer program product comprising computer instructions, the computer instructions being stored in a computer-readable storage medium, a processor of a computer device reading the computer instructions from the computer-readable storage medium, and the processor executing the computer instructions so that the computer device executes to implement the HARQ-ACK codebook construction method as described in the above aspect.
  • a chip is provided, wherein the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the HARQ-ACK codebook construction method as described in the above aspect.
  • a computer program is provided.
  • the computer program product is executed on a processor of a computer device, the computer device is enabled to execute to implement the HARQ-ACK codebook construction method as described in the above aspects.
  • An extended K1 set is determined based on at least one of the K1 set and the K0 set, and a HARQ-ACK codebook is constructed based on the extended K1 set. Since the extended K1 set is obtained based on an extension of the K1 set, the HARQ-ACK codebook constructed based on the extended K1 set can reserve bits for the HARQ-ACK information corresponding to the non-reference PDSCH, thereby supporting feedback of the HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set.
  • FIG1 shows a schematic diagram of a configuration of a K1 set in the related art
  • FIG2 shows a schematic diagram of a PDSCH reception situation in some time slots
  • FIG4 shows a schematic diagram of a HARQ-ACK codebook construction system provided by some exemplary embodiments of the present application.
  • FIG5 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application;
  • FIG6 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG7 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG8 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG9 is a schematic diagram of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG10 is a schematic diagram of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG11 is a schematic diagram showing a PDSCH reception situation in some time slots
  • FIG12 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG13 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG14 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG15 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG16 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG17 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG18 is a schematic diagram showing a flow chart of a method for constructing a HARQ-ACK codebook provided in some exemplary embodiments of the present application.
  • FIG19 shows a structural block diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application.
  • FIG20 shows a structural block diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application.
  • FIG21 shows a structural block diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application.
  • FIG22 shows a structural block diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application.
  • FIG. 23 shows a schematic diagram of the structure of a communication device provided by some exemplary embodiments of the present application.
  • first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • word "if” as used herein may be interpreted as "at the time of” or "when” or "in response to determining”.
  • HARQ-acknowledgement (Acknowledge, ACK) timing represents the time domain offset from the time domain unit where the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) is located to the time domain unit where the HARQ-ACK is located.
  • the time domain unit includes a time slot or a sub-time slot.
  • the HARQ-ACK timing is determined as follows: the network device first configures at least one PDSCH to HARQ-ACK time slot offset (slot offset) for the terminal device through the radio resource control (Radio Resource Control, RRC) signaling, that is, the K1 set (K1set), and then indicates one of the K1 values (value) from the K1 set indicated by the network device through the PDSCH-to-HARQ_feedback timing indicator indication field in the downlink control information (Downlink Control Information, DCI), and determines the HARQ-ACK timing according to the K1 value.
  • RRC Radio Resource Control
  • TDRA Time Domain Resource Assignment/Allocation
  • one DCI is supported to schedule one PDSCH or physical uplink shared channel (PUSCH).
  • the DCI includes a TDRA field, which is used to indicate the time domain resource allocation information of a PDSCH or PUSCH scheduled by the DCI, such as the time slot where the PDSCH/PUSCH is located, the symbols occupied by the PDSCH/PUSCH, and the PDSCH/PUSCH mapping type.
  • the time domain resource allocation of PDSCH/PUSCH is determined as follows:
  • TDRA list for each bandwidth part (per Bandwidth Part, per BWP) for the terminal device through RRC parameters (e.g., pdsch-TimeDomainAllocationList/pusch-TimeDomainAllocationList); or define one or more default TDRA lists for the terminal device through protocol definition.
  • RRC parameters e.g., pdsch-TimeDomainAllocationList/pusch-TimeDomainAllocationList
  • the TDRA list includes one or more rows, each of which includes the following parameters: slot offset value K0/K2 (slot offset K0/K2), which is used to determine the slot offset between the time slot where the DCI is located and the time slot where the PDSCH/PUSCH is located; the Start and Length Indicator (SLIV), or the start symbol S and allocation length L (start symbol S and allocation length L), which is used to determine the start symbol and the number of symbols occupied by PDSCH/PUSCH; PDSCH/PUSCH mapping type (PDSCH/PUSCH mapping type), which is used to determine the mapping type of PDSCH/PUSCH.
  • slot offset value K0/K2 slot offset K0/K2
  • SIV Start and Length Indicator
  • start symbol S and allocation length L start symbol S and allocation length L
  • PDSCH/PUSCH mapping type PDSCH/PUSCH mapping type
  • a TDRA row is indicated from the TDRA list configured by the RRC parameters or the TDRA list defined by the protocol.
  • the TDRA field indication value m provides a row index m+1 to the above allocation table.
  • the relevant signaling for configuring the TDRA list through RRC parameters (such as pdsch-TimeDomainAllocationList/pusch-TimeDomainAllocationList) is as follows:
  • the PDSCH-TimeDomainResourceAllocation information element is used to configure the time domain resource allocation information of PDSCH, including the time slot, symbol, mapping type, etc. occupied by PDSCH.
  • the PDSCH-TimeDomainResourceAllocationList contains one or more such PDSCH-TimeDomainResourceAllocations.
  • the network device indicates in the downlink configuration which time domain resource allocation information element of the time domain resource allocation list the PDSCH scheduled by the terminal device corresponds to.
  • the terminal device determines the bit width of the TDRA field in the DCI based on the number of entries in the PDSCH-TimeDomainResourceAllocationList.
  • the value 0 in the TDRA field in the DCI represents the first element in this table, the value 1 in the DCI field represents the second element in this table, and so on.
  • DSCH-TimeDomainResourceAllocation IE is used to configure the TDRA of PDSCH, including at least slot, symbols, mapping type occupied by the PDSCH.
  • the PDSCH-TimeDomainResourceAllocationList contains one or more of such PDSCH-TimeDomainResourceAllocations.
  • the network indicates in the DL assignment which of the configured time domain allocations the UE shall apply. for that DL assignment.
  • the UE determines the bit width of the TimeDomainResourceAllocation field of DCI field based on the number of entries in the PDSCH-TimeDomainResourceAllocationList. Value 0 in the TimeDomainResourceAllocation field of DCI field refers to the first element in this list, value 1 in the DCI field refers to the second element in this list, and so on.
  • Type-1 HARQ-ACK codebook i.e., semi-static HARQ-ACK codebook
  • Type-2 HARQ-ACK codebook i.e., dynamic HARQ-ACK codebook
  • the Type-1 HARQ-ACK codebook uses a semi-static method to determine the reception opportunity of the candidate PDSCH and then determine the number of bits of the corresponding ACK/Negative Acknowledgement (NACK) feedback information based on the number of configured service cells, the feedback timing set from PDSCH to HARQ-ACK (a set of slot timing values K1) and the row index set R in the TDRA list.
  • NACK ACK/Negative Acknowledgement
  • Each row in the TDRA list defines the time slot offset value K0, SLIV, and PDSCH mapping type from the physical downlink control channel (PDCCH) to PDSCH.
  • the Type-1 HARQ-ACK codebook determines the feedback time domain unit set according to the feedback timing set (a set of slot timing values K1) from PDSCH to HARQ-ACK.
  • the K1 set is configured as ⁇ 1,2,4 ⁇ , which means that the time domain offset value from the time domain unit where PDSCH is located to the time domain unit where HARQ-ACK is located is at least one of 1, 2, and 4.
  • Type-1 HARQ codebook is fed back on time domain unit n, its corresponding feedback time domain unit set is ⁇ time domain unit n-1, time domain unit n-2, time domain unit n-4 ⁇ , which means that the Type-1 HARQ-ACK codebook on time domain unit n can feedback the PDSCH corresponding to at least one of time domain unit n-1, time domain unit n-2, and time domain unit n-4.
  • the reception opportunity of the candidate PDSCH is determined according to the SLIV indicated by the row index set R in the TDRA list, that is, the number of ACK/NACK bits included in the Type-1 HARQ-ACK codebook does not depend on the number of PDSCHs actually received, but is determined according to the reception opportunity of the semi-statically configured candidate PDSCH (that is, the maximum number of PDSCHs that can be received).
  • the advantage of this method is that it can avoid the ambiguity in the understanding of the size of the ACK/NACK feedback codebook between the terminal and the network device caused by the terminal device not receiving part of the PDSCH, thereby avoiding the problem that the network device cannot correctly receive the feedback information sent by the terminal.
  • the disadvantage of this method is that the feedback overhead is large, that is, there must be reserved feedback information bits on all downlink resources that may transmit PDSCH.
  • the terminal device receives at most one PDSCH at the same time in one carrier, that is, any one of the PDSCH candidate reception opportunities (occasions for candidate PDSCH receptions) 1 to PDSCH candidate reception opportunities 5 shown in FIG2, taking the time domain unit as a time slot as an example, the time slot shown in FIG2 corresponds to the feedback time domain unit set ⁇ time domain unit n-1, time domain unit n-2, time domain unit n-4 ⁇ in FIG1.
  • PDSCH candidate reception opportunity 1 and PDSCH candidate reception opportunities 2 and 3 will not be transmitted at the same time.
  • the corresponding feedback information bits are reserved for PDSCH candidate reception opportunities 1, 2, and 3 in the Type-1 HARQ-ACK codebook, there will inevitably be feedback information redundancy, and the three PDSCH candidate reception opportunities 1, 2, and 3 can share one feedback information bit. That is, when the terminal device receives PDSCH in any of the three candidate reception opportunities 1, 2, and 3, its corresponding ACK/NACK information is mapped to the same bit.
  • the terminal device receives PDSCH in any of the three candidate reception opportunities 1, 2, and 3, its corresponding ACK/NACK information is mapped to the same bit.
  • the terminal device needs to feedback 6 bits of HARQ-ACK information in the Type-1 HARQ-ACK codebook on time domain unit n, of which time domain unit n-1, time domain unit n-2, and time domain unit n-4 correspond to 2 bits of HARQ-ACK information respectively.
  • the terminal device does not have the ability to receive more than one unicast PDSCH in one time slot, the five PDSCH candidate receiving opportunities in Figure 1 will share one feedback information bit, that is, when any one of the five PDSCH candidate receiving opportunities receives the PDSCH, its corresponding ACK/NACK information will be mapped to the same bit.
  • the row index set (i.e., TDRA list) involved in the construction of the above Type-1 HARQ-ACK codebook is configured on a per-cell basis, so the construction of the Type-1 HARQ-ACK codebook can also be understood as being on a per-cell basis.
  • the Type-1 HARQ-ACK codebook can be obtained by concatenating the HARQ-ACK information bits corresponding to multiple cells.
  • Multi-carrier scheduling :
  • the HARQ-ACK timing is determined by finding a reference PDSCH among multiple PDSCHs scheduled by a DCI.
  • the HARQ-ACK timing is determined based on the reference PDSCH using the HARQ-ACK timing determination method introduced in the previous article, and the relevant protocols are as follows.
  • the determination method of the reference PDSCH needs further study, for example, it can be the last PDSCH among multiple PDSCHs, or the PDSCH with the smallest or largest serving cell index among multiple PDSCHs.
  • a terminal device When a terminal device detects a DCI format 1_X (DCI format 1_X) scheduling a group of PDSCHs, the terminal device provides corresponding HARQ-ACK information in a PUCCH transmission in an uplink (UL) time slot n+k, where k is the number of time slots, indicated by the PDSCH-to-HARQ_feedback timing indicator field in the DCI format, and in the case of a time slot-based PUCCH, n refers to the last UL time slot overlapping with the downlink (DL) time slot n D where the reference PDSCH is located, or, in the case of a sub-slot-based PUCCH, n refers to the UL time slot in the DL time slot n D that overlaps with the end position of the received reference PDSCH.
  • DCI format 1_X DCI format 1_X scheduling a group of PDSCHs
  • the UE When UE detects a DCI format 1_X scheduling a set of PDSCHs, the UE provides corresponding HARQ-ACK information in a PUCCH transmission within UL slot n+k, where k is a number of slots and is indicated by the PDSCH-to-HARQ_feedback timing indicator field in the DCI format and n is the last UL slot overlapping with the DL slot n D for the reference PDSCH reception for slot-based PUCCH or an UL slot overlapping with the end of the reference PDSCH reception in DL slot n D for sub-slot based PUCCH.
  • the time slot offset value from the time slot where other PDSCHs (such as PDSCH 1 and PDSCH 2) are located to the time slot where HARQ-ACK is located is likely not in the K1 set ⁇ 1 ⁇ configured by the network device or defined by the protocol, resulting in that when the Type-1 HARQ-ACK codebook is determined in the time slot where HARQ-ACK is located, the time slots where PDSCH 1 and PDSCH 2 are located are not in the feedback time domain unit set of the Type-1 HARQ-ACK codebook, that is, there are, there are
  • the method of determining the SLIV set required for the construction of the Type-1 HARQ-ACK codebook also needs further discussion.
  • the present application proposes an extension method of the K1 set and a construction method of the SLIV set, which can be used in the scenario where a DCI schedules multiple PDSCHs, so that corresponding bits are reserved in the Type-1 HARQ-ACK codebook for the HARQ-ACK information corresponding to multiple PDSCHs.
  • Fig. 4 shows a schematic diagram of a HARQ-ACK codebook construction system provided by some exemplary embodiments provided in the present application.
  • the HARQ-ACK codebook construction system includes a network device 410 and a terminal device 420.
  • the network device 410 in the present application provides wireless communication functions, and the network device 410 includes but is not limited to: Evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (for example, Home Evolved Node B, or Home Node B, HNB), Baseband Unit (BBU), Wireless Fidelity (Wireless Fidelity), and so on.
  • eNB Evolved Node B
  • RNC Radio Network Controller
  • NB Node B
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • Home Base Station for example, Home Evolved Node B, or Home Node B, HNB
  • BBU Baseband Unit
  • Wireless Fidelity Wireless Fidelity
  • the mobile communication systems include base stations (such as mobile cellular networks, cellular DU), base stations in Beyond Fifth Generation (B5G) and 6th Generation (6G) mobile communication systems, core network (CN), fronthaul (Fronthaul), backhaul (Backhaul), radio access network (RAN), network slicing, etc.,
  • the terminal device 420 in this application is also called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, user device.
  • the terminal includes but is not limited to: handheld devices, wearable devices, vehicle-mounted devices and Internet of Things devices, such as: mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (MID), augmented reality (AR) terminals, virtual reality (VR) terminals and mixed reality (MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control (Industrial Control), wireless terminals in self-driving (Self Driving), wireless terminals in remote medical care (Remote Medical), wireless terminals in smart grid (Smart Grid) and so on.
  • MID mobile Internet devices
  • AR augmented reality
  • VR virtual reality
  • MR mixed reality
  • Wireless terminals in transportation safety wireless terminals in smart city, wireless terminals in smart home, wireless terminals in remote medical surgery, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), TV set-top box (STB), Customer Premise Equipment (CPE), etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • STB TV set-top box
  • CPE Customer Premise Equipment
  • the network device 410 and the terminal device 420 communicate with each other via some air interface technology, such as a Uu interface.
  • Uplink communication refers to sending signals to the network device 410; downlink communication refers to sending signals to the terminal device 420.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G mobile communication system New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, terrestrial communication network (NTN) system, non-terrestrial communication network (NTN) system, wireless local area network (WLAN), wireless fidelity (Wi-Fi), cellular Internet of Things system, cellular passive Internet of Things system, and can
  • the technical solution provided in the embodiments of the present application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device to device (D2D) network, machine to machine (M2M) network, Internet of Things (IoT) network or other networks.
  • IoT network can include vehicle networking, for example.
  • vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.
  • FIG5 is a schematic diagram of a flow chart of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method executed by a terminal device as an example, the method includes at least some of the following steps:
  • Step 510 Construct a HARQ-ACK codebook based on the extended K1 set.
  • the extended K1 set is determined based on at least one of the K1 set and the K0 set.
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset from PDCCH to PDSCH.
  • the PDCCH carries the first DCI for scheduling at least one PDSCH.
  • the at least one PDSCH corresponds to at least one cell
  • the reference PDSCH is one of the at least one PDSCH.
  • the PDCCH carries a first DCI for scheduling at least two PDSCHs, and the at least two PDSCHs correspond to at least two cells.
  • the first K1 value in the K1 set is used to indicate the time domain offset between the time domain unit where the reference PDSCH is located or occupied and the time domain unit where the HARQ-ACK is located or occupied.
  • the K0 value in the K0 set is used to indicate the time domain offset between the time domain unit where the PDCCH is located or occupied and the time domain unit where the PDSCH is located or occupied.
  • the extended K1 set includes time domain offset values from a plurality of PDSCHs to HARQ-ACK that can be scheduled by the first DCI.
  • multiple cell combinations that can be scheduled by the first DCI refers to “all possible cell combinations scheduled by the first DCI in a PUCCH group or a cell group”.
  • multiple PDSCHs that can be scheduled by the first DCI refers to the PDSCHs corresponding to all possible cell combinations scheduled by the first DCI in a PUCCH group or a cell group.
  • HARQ-ACK information corresponding to the PDSCH of cells in the same PUCCH group is fed back in the same cell.
  • a cell group refers to a set of service cells configured by a network device.
  • a cell combination refers to a scheduling set formed by at least two cells supporting simultaneous scheduling of a DCI, which is a subset or a full set of cell groups; or, the cell combination is a subset or a full set of PUCCH groups, which can also be understood as the cell combination being a subset or a full set of cells included in the PUCCH group.
  • each cell group includes at least one PUCCH group. In some embodiments, each cell group includes at least one cell combination.
  • the number of second K1 values in the extended K1 set is greater than or equal to the number of first K1 values in the K1 set.
  • the time domain offset comprises at least one of a subframe offset, a slot offset, a subslot offset, a symbol group offset, and a symbol offset.
  • the extended K1 set is determined based on the K1 set; and/or, the extended K1 set is determined based on the K1 set and the K0 set.
  • a HARQ-ACK codebook is constructed based on the extended K1 set and the SLIV set.
  • a HARQ-ACK codebook is constructed based on an extended K1 set corresponding to the first cell and a SLIV set corresponding to the first cell.
  • the content of constructing the HARQ-ACK codebook based on the SLIV set can be referred to in subsequent embodiments, such as the embodiments shown in Figures 13 and 14, and will not be repeated here.
  • the method provided in this embodiment determines an extended K1 set based on at least one of the K1 set and the K0 set, and constructs a HARQ-ACK codebook based on the extended K1 set. Since the extended K1 set includes time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to the HARQ-ACK, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set.
  • FIG6 shows a flow chart of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method executed by a terminal device as an example, the method includes at least some of the following steps:
  • Step 610 Determine an extended K1 set based on the K1 set and the K0 set;
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset from PDCCH to PDSCH.
  • the PDCCH carries the first DCI for scheduling at least one PDSCH.
  • the at least one PDSCH corresponds to at least one cell
  • the reference PDSCH is one of the at least one PDSCH.
  • the extended K1 set includes time domain offset values from a plurality of PDSCHs to HARQ-ACK that can be scheduled by the first DCI.
  • the number of second K1 values in the extended K1 set is greater than or equal to the number of first K1 values in the K1 set.
  • the time domain offset comprises at least one of a subframe offset, a slot offset, a subslot offset, a symbol group offset, and a symbol offset.
  • the K0 set includes K0 values in a TDRA element set
  • the TDRA element set includes K0 values corresponding to each cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • a TDRA element (also referred to as an entry) may be a TDRA row or a TDRA column.
  • the TDRA element set includes at least one TDRA element in at least one first TDRA list, the first TDRA list is associated with multiple cell combinations that can be scheduled by the first DCI, or the first TDRA list is associated with any cell combination of multiple cell combinations that can be scheduled by the first DCI.
  • the TDRA element set includes at least two TDRA elements in at least two second TDRA lists, each second TDRA list being associated with one cell in a plurality of cell combinations schedulable by the first DCI.
  • the extended K1 set corresponding to a first cell in the at least one cell includes: a second K1 value determined based on the K1 set and the offset value set corresponding to the first cell;
  • the offset value set corresponding to the first cell is determined based on the K0 value corresponding to the reference cell and the K0 value corresponding to the first cell.
  • the offset value set corresponding to the first cell is determined based on a first K0 value and a second K0 value having the same index, where the index is used to identify the TDRA element in the TDRA element set, the first K0 value is the K0 value corresponding to the reference PDSCH, the second K0 value is the K0 value corresponding to the first cell, the cell corresponding to the reference PDSCH is the reference cell, and the K0 value corresponding to the reference PDSCH is the K0 value corresponding to the reference cell.
  • the first K0 value belongs to a first K0 set corresponding to a cell corresponding to the reference PDSCH
  • the second K0 value belongs to a second K0 set corresponding to the first cell
  • the offset value set corresponding to the first cell includes offset values between a first K0 value and a second K0 value having the same index.
  • the offset value between the first K0 value and the second K0 value may be a difference value obtained by subtracting the second K0 value from the first K0 value, or a difference value obtained by subtracting the first K0 value from the second K0 value.
  • the second K1 value is determined based on each first K1 value in the K1 set and each offset value in the offset value set corresponding to the first cell.
  • the second K1 value is determined based on the sum of each first K1 value in the K1 set and each offset value in the offset value set corresponding to the first cell.
  • the second K1 value is determined based on each first K1 value in the K1 set and each offset value in the offset value interval corresponding to the first cell;
  • the offset value interval corresponding to the first cell is a closed interval or an open-first-closed interval between 0 and the maximum offset value
  • the maximum offset value is the offset value with the largest value in the offset value set corresponding to the first cell. For example, if the maximum offset value is x, the offset value interval corresponding to the first cell is [0, x] or (0, x].
  • the second K1 value is determined based on the sum of each first K1 value in the K1 set and each offset value in the offset value interval corresponding to the first cell;
  • the first cell and the cell corresponding to the reference PDSCH are different.
  • the offset value set corresponding to the first cell is determined based on a first K0 value and a second K0 value having the same index, where the index is an index for identifying the TDRA element in the TDRA element set, the first K0 value belongs to the first K0 set of the cell corresponding to the reference PDSCH, and the second K0 value belongs to the second K0 set corresponding to the first cell;
  • the extended K1 set is determined based on the K1 set and the offset value set corresponding to the first cell;
  • the first TDRA element includes TDRA information corresponding to the first cell, and the at least two TDRA elements corresponding to the first index include TDRA information corresponding to the first cell.
  • the extended K1 set corresponding to the first cell is determined based on the sum of each first K1 value in the K1 set and each offset value in the offset value set corresponding to the first cell.
  • the extended K1 set corresponding to the first cell is determined based on the sum of each first K1 value in the K1 set and each value in the offset value interval;
  • the offset value interval is a closed interval or an open-first-and-closed-later interval between 0 and the maximum offset value, and the maximum offset value is the largest offset value in the offset value set.
  • the offset values in the offset value set are also related to at least one of the uplink subcarrier spacing and the downlink subcarrier spacing.
  • the uplink subcarrier spacing includes the subcarrier spacing corresponding to the PUCCH, and the downlink subcarrier spacing includes the subcarrier spacing corresponding to the PDSCH.
  • the offset value in the offset value set corresponding to the first cell is based on the difference between the first K0 value and the second K0 value having the same index and Determine, and/or, the offset value in the offset value set corresponding to the first cell is based on the difference between the first K0 value and the second K0 value having the same index and Sure;
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index.
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index.
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the K1 set is associated with a PUCCH group, the PUCCH group including at least one cell.
  • the extended K1 set is associated with one cell in a plurality of cell combinations that can be scheduled by the first DCI, or the extended K1 set is associated with one BWP in one cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • the reference PDSCH is: the first PDSCH in at least one PDSCH; or the last PDSCH; or the PDSCH with the smallest cell index; or the PDSCH with the largest cell index.
  • the "first PDSCH” may also be referred to as the "earliest PDSCH”, where "earliest” is determined by the start position or start symbol of the PDSCH; the “last PDSCH” may also be referred to as the “latest PDSCH”, where "last” or “latest” is determined by the end position or end symbol of the PDSCH.
  • the extended K1 set includes each first K1 value in the K1 set
  • the second DCI is used to schedule the PDSCH of one cell.
  • HARQ-ACK information corresponding to at least one PDSCH scheduled by the first DCI and HARQ-ACK information corresponding to a PDSCH of a cell scheduled by the second DCI are in the same HARQ-ACK codebook.
  • Step 630 Construct a HARQ-ACK codebook based on the extended K1 set.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is a semi-static HARQ-ACK codebook, and the HARQ-ACK codebook is constructed based on the extended K1 set, which can also be understood as constructing a semi-static HARQ-ACK codebook based on the extended K1 set.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a candidate PDSCH receiving opportunity set for HARQ-ACK feedback in time slot n based on the extended K1 set, and maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH receiving opportunity set to the corresponding position in the HARQ-ACK feedback sequence based on the candidate PDSCH receiving opportunity set, thereby obtaining the HARQ-ACK codebook transmitted in time slot n.
  • the HARQ-ACK information corresponding to the PDSCH that is successfully received in the candidate PDSCH receiving opportunity set is ACK
  • the HARQ-ACK information corresponding to the PDSCH that is failed to be received in the candidate PDSCH receiving opportunity set is NACK.
  • the extended K1 set corresponding to the first cell includes a second K1 value determined based on the K1 set and the offset value set corresponding to the first cell, then the HARQ-ACK bit corresponding to the first cell in the HARQ-ACK codebook is reserved according to the candidate PDSCH reception opportunity corresponding to each second K1 value in the extended K1 set corresponding to the first cell.
  • the HARQ-ACK codebook reserves k bits for the HARQ-ACK information corresponding to the first cell; if the k candidate PDSCH reception opportunities overlap in the time domain, and the overlapping candidate PDSCH reception opportunities share one feedback information bit, then the HARQ-ACK codebook reserves a number of bits less than k bits for the HARQ-ACK information corresponding to the first cell.
  • the candidate PDSCH reception opportunities may be understood as candidate PDSCH positions.
  • the HARQ-ACK codebook includes HARQ-ACK information of at least one cell, and the HARQ-ACK information of each cell in the at least one cell can be cascaded in ascending or descending order of the cell index to obtain the HARQ-ACK codebook.
  • the HARQ-ACK bit information corresponding to each cell in the HARQ-ACK codebook is sorted in time domain order.
  • the time domain order may be the time domain order of DCI or the time domain order of PDSCH.
  • a HARQ-ACK codebook is constructed based on the extended K1 set and the SLIV set.
  • a HARQ-ACK codebook is constructed based on an extended K1 set corresponding to the first cell and a SLIV set corresponding to the first cell.
  • the content of constructing the HARQ-ACK codebook based on the SLIV set can be referred to in subsequent embodiments, such as the embodiments shown in Figures 13 and 14, and will not be repeated here.
  • the method provided in this embodiment determines an extended K1 set based on at least one of the K1 set and the K0 set, and constructs a HARQ-ACK codebook based on the extended K1 set. Since the extended K1 set includes time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to the HARQ-ACK, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set.
  • FIG7 shows a flow chart of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method executed by a terminal device as an example, the method includes at least some of the following steps:
  • Step 710 Determine an extended K1 set based on the K1 set
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to the HARQ-ACK, the PDCCH carries the first DCI for scheduling at least one PDSCH, the at least one PDSCH corresponds to at least one cell, and the reference PDSCH is one of the at least one PDSCH.
  • the extended K1 set includes time domain offset values from a plurality of PDSCHs to HARQ-ACK that can be scheduled by the first DCI.
  • the number of second K1 values in the extended K1 set is greater than or equal to the number of first K1 values in the K1 set.
  • the time domain offset comprises at least one of a subframe offset, a slot offset, a subslot offset, a symbol group offset, and a symbol offset.
  • the extended K1 set corresponding to the first cell in the at least one cell includes: each K1 value in the K1 set.
  • the first cell of the at least one cell is a cell to which the reference PDSCH corresponds.
  • the extended K1 set is determined based on each first K1 value in the K1 set;
  • the second TDRA element includes TDRA information corresponding to the first cell, and the at least two TDRA elements corresponding to the second index include TDRA information corresponding to the first cell.
  • the K1 set is associated with a PUCCH group, the PUCCH group including at least one cell.
  • the extended K1 set is associated with one cell in a plurality of cell combinations that can be scheduled by the first DCI, or the extended K1 set is associated with one BWP in one cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • the reference PDSCH is: the first PDSCH; or the last PDSCH; or the PDSCH with the smallest cell index; or the PDSCH with the largest cell index in at least one PDSCH.
  • the extended K1 set includes each first K1 value in the K1 set
  • the second DCI is used to schedule the PDSCH of one cell.
  • Step 730 Construct a HARQ-ACK codebook based on the extended K1 set.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is a semi-static HARQ-ACK codebook, and constructing the HARQ-ACK codebook based on the extended K1 set can also be understood as constructing the semi-static HARQ-ACK codebook based on the extended K1 set.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a candidate PDSCH receiving opportunity set for HARQ-ACK feedback in time slot n based on the extended K1 set, and maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH receiving opportunity set to the corresponding position in the HARQ-ACK feedback sequence based on the candidate PDSCH receiving opportunity set, thereby obtaining the HARQ-ACK codebook transmitted in time slot n.
  • the HARQ-ACK information corresponding to the PDSCH that is successfully received in the candidate PDSCH receiving opportunity set is ACK
  • the HARQ-ACK information corresponding to the PDSCH that is failed to be received in the candidate PDSCH receiving opportunity set is NACK.
  • the extended K1 set corresponding to the first cell includes a second K1 value determined based on the K1 set and the offset value set corresponding to the first cell, then the HARQ-ACK bit corresponding to the first cell in the HARQ-ACK codebook is a pair reserved according to the candidate PDSCH receiving opportunity corresponding to each second K1 value in the extended K1 set corresponding to the first cell.
  • the HARQ-ACK codebook reserves k bits for the HARQ-ACK information corresponding to the first cell; if the k candidate PDSCH receiving opportunities overlap in the time domain, the overlapping candidate PDSCH receiving opportunities share one feedback information bit, then the HARQ-ACK codebook reserves a number of bits less than k bits for the HARQ-ACK information corresponding to the first cell.
  • the HARQ-ACK codebook includes HARQ-ACK information of at least one cell, and the HARQ-ACK information of each cell in the at least one cell can be cascaded in ascending or descending order of the cell index to obtain the HARQ-ACK codebook.
  • the HARQ-ACK bit information corresponding to each cell in the HARQ-ACK codebook is sorted in time domain order.
  • the time domain order may be the time domain order of DCI or the time domain order of PDSCH.
  • a HARQ-ACK codebook is constructed based on the extended K1 set and the SLIV set.
  • a HARQ-ACK codebook is constructed based on an extended K1 set corresponding to the first cell and a SLIV set corresponding to the first cell.
  • the content of constructing the HARQ-ACK codebook based on the SLIV set can be referred to in subsequent embodiments, such as the embodiments shown in Figures 13 and 14, and will not be repeated here.
  • the method provided in this embodiment determines an extended K1 set based on the K1 set, and constructs a HARQ-ACK codebook based on the extended K1 set. Since the extended K1 set includes time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to the HARQ-ACK, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set.
  • FIG8 is a flow chart of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method performed by a network device and a terminal device as an example, the method includes at least some of the following steps:
  • Step 810 The network device configures a serving cell and a cell combination for the terminal device
  • the network device configures five serving cells for the terminal device through high-level signaling, namely, cell 1, cell 2, cell 3, cell 4 and cell 5, wherein the cell combination that can be simultaneously scheduled by the first DCI is shown in Table 2 below:
  • Step 820 Determine the K1 set
  • K1 set ⁇ 1, 2 ⁇ , taking the time domain unit as a time slot as an example, assuming that the subcarrier spacing of PDSCH and PUCCH is the same, it means that the time domain offset value from the time slot where PDSCH is located to the time slot where HARQ-ACK is located is at least one of 1 and 2.
  • the time domain offset value is 2
  • the last uplink time slot overlapping with the downlink time slot where PDSCH is located is time slot n
  • the time slot where HARQ-ACK is located is n+2
  • the uplink time slot overlapping with the end position of PDSCH is time slot n
  • the time slot where HARQ-ACK is located is n+2.
  • the network device configures the K1 set for the terminal device; or, the protocol defines the K1 set.
  • Step 830 The network device configures a TDRA list for the terminal device
  • the TDRA list may be configured based on the BWP of each cell or the granularity, or based on the PUCCH group or the granularity, or based on the cell group or the granularity, or based on the cell combination or the granularity.
  • the TDRA list is configured based on each cell combination (per-cell combination) as an example for schematic explanation.
  • TDRA list configured by the network device is as shown in Table 3 below:
  • Table 3 TDRA list corresponding to cell combination 1
  • the TDRA list configured by the network device is as shown in Table 4 below:
  • the row index can also be understood as the TDRA element index.
  • each TDRA element of the TDRA list for example, in each row of the TDRA list, in addition to K0, it also includes information such as SLIV and PDSCH mapping type. This embodiment uses K0 as an example for schematic illustration, and does not mean to limit the specific content of the TDRA list.
  • the reference PDSCH is the last PDSCH in at least one PDSCH.
  • the K0 value of cell 3 3, which means that the time domain offset between PDCCH and PDSCH@cell 3 is 3
  • the K0 value of cell 1 1, which means that the time domain offset between PDCCH and PDSCH@cell 1 is 1
  • PDSCH@cell 3 is the last PDSCH among the three PDSCHs
  • PDSCH@cell 3 is the reference PDSCH.
  • Step 840 Determine the extended K1 set corresponding to cell 1;
  • Each row (also understood as each TDRA element) of the TDRA list associated with the cell group 1 including the cell 1 is traversed.
  • the set of TDRA elements that need to be traversed is the set of three TDRA elements in the TDRA list (Table 3) corresponding to cell combination 1, that is, the three rows with row indexes from 1 to 3 in Table 3.
  • the TDRA element set that needs to be traversed is the set of all TDRA elements containing TDRA information of cell 1 in at least two TDRA lists corresponding to at least two small group combinations including cell 1.
  • each TDRA element included in the TDRA element set that needs to be traversed includes TDRA information corresponding to cell 1 .
  • the TDRA list that needs to be traversed includes at least one TDRA element in the TDRA list containing the TDRA information corresponding to cell 1; when the number of extended TDRA lists containing TDRA information corresponding to cell 1 is at least two, the TDRA list that needs to be traversed includes at least two TDRA elements in the at least two TDRA lists containing the TDRA information corresponding to cell 1.
  • the extended K1 set corresponding to cell 1 includes each K1 value of the K1 set. It can also be understood that when determining the extended K1 set corresponding to cell 1, when the reference PDSCH is the PDSCH in cell 1, each value of the K1 set is added to the extended K1 set corresponding to cell 1.
  • the terminal device receives the first DCI sent by the network device on the PDCCH corresponding to time slot m, and the first DCI is used to simultaneously schedule the PDSCHs corresponding to cell 1, cell 2, and cell 3 in cell combination 1.
  • the reference PDSCH is PDSCH@cell 1 (i.e., the PDSCH in cell 1)
  • each value of the K1 set is added to the extended K1 set corresponding to cell 1.
  • the extended K1 set in the HARQ-ACK information corresponding to cell 1 includes each K1 value of the K1 set.
  • the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slots n-1 to n-2.
  • the reference PDSCH is PDSCH@cell 3 (i.e., the PDSCH in cell 3) or the reference PDSCH is PDSCH@cell 2 (i.e., the PDSCH in cell 2), that is, the reference PDSCH is not PDSCH@cell 1, the extended K1 set corresponding to cell 1 is determined according to the K1 set and the K0 set.
  • the extended K1 set corresponding to cell 1 includes a second K1 value determined based on the K1 set and the offset value set corresponding to cell 1.
  • the offset value set corresponding to cell 1 is determined based on the first K0 value and the second K0 value of the same index.
  • the offset value set corresponding to cell 1 includes an offset value between the first K0 value and the second K0 value based on the same index.
  • the first K0 value belongs to the first K0 set of the cell corresponding to the reference PDSCH, such as the first K0 set of cell 3 or the first K0 set of cell 2.
  • the second K0 value belongs to the second K0 set corresponding to cell 1.
  • the extended K1 set corresponding to cell 1 is determined based on each first K1 value in the K1 set and each offset value in the offset value set corresponding to cell 1 .
  • the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set and each offset value in the offset value set corresponding to cell 1 .
  • the offset value in the offset value set corresponding to cell 1 is also related to at least one of the uplink subcarrier spacing and the downlink subcarrier spacing.
  • the uplink subcarrier spacing includes the subcarrier spacing corresponding to the PUCCH, and the downlink subcarrier spacing includes the subcarrier spacing corresponding to the PDSCH.
  • the offset value in the offset value set corresponding to cell 1 is based on the difference between the first K0 value and the second K0 value having the same index and Determine, and/or, the offset value in the offset value set corresponding to cell 1 is based on the difference between the first K0 value and the second K0 value having the same index and Sure;
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index.
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index.
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the extended K1 set corresponding to cell 1 includes the K1 set plus the offset value interval. That is, the extended K1 set corresponding to cell 1 is determined based on each first K1 value in the K1 set and each offset value in the offset value interval.
  • the offset value interval is a closed interval or an open-first-and-closed interval between 0 and the maximum offset value, and the maximum offset value is the offset value with the largest value in the offset value set.
  • the terminal device receives the first DCI sent by the network device on the PDCCH corresponding to time slot m, and the first DCI is used to simultaneously schedule the PDSCHs corresponding to cell 1, cell 2, and cell 3 in cell combination 1.
  • the reference PDSCH is PDSCH@cell 3 (i.e., the PDSCH in cell 3)
  • cell 1 is different from the cell corresponding to the reference PDSCH.
  • Method 1 As shown in Figure 10, the number of TDRA elements corresponding to cell 1 is three, and the offset value set corresponding to cell 1 is determined based on the time domain offset value of the first K0 value corresponding to the reference PDSCH with the same index and the second K0 value corresponding to cell 1.
  • the offset value set corresponding to cell 1 is ⁇ 0, 2, 3 ⁇ .
  • the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set ⁇ 1,2 ⁇ and each offset value in the offset value set ⁇ 0,2,3 ⁇ corresponding to cell 1, that is, the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4,5 ⁇ , and when the time slot where the HARQ-ACK corresponding to cell 1 is located is time slot n, the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slot n-1 to time slot n-5.
  • the offset value in the offset value set is also related to at least one of the uplink subcarrier spacing and the downlink subcarrier spacing, assuming that the uplink subcarrier spacing (SCS) is the same as the downlink SCS, then Then, the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4,5 ⁇ .
  • This method of determining the extended K1 set can more accurately extend the K1 set, and the overhead required for the HARQ-ACK codebook is relatively small.
  • Method 2 The number of TDRA elements corresponding to cell 1 is three, and the offset value set corresponding to cell 1 is determined based on the time domain offset value of the first K0 value corresponding to the reference PDSCH with the same index and the second K0 value corresponding to cell 1.
  • the maximum offset value offset max in the offset value set ⁇ 0,2,3 ⁇ corresponding to cell 1 is 3, then the extended K1 set corresponding to cell 1 is determined based on each first K1 value in the K1 set and each value in [0,3], or, the extended K1 set corresponding to cell 1 is determined based on each first K1 value in the K1 set and each value in (0,3].
  • the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set ⁇ 1,2 ⁇ and each offset value in the offset value interval [0,3] corresponding to cell 1, and the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4,5 ⁇ ; or, the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set ⁇ 1,2 ⁇ and each offset value in the offset value interval (0,3] corresponding to cell 1, and the extended K1 set corresponding to cell 1 is ⁇ 2,3,4,5 ⁇ .
  • the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4,5 ⁇ or ⁇ 2,3,4,5 ⁇ .
  • This method of determining the extended K1 set is simpler, but the overhead required for the HARQ-ACK codebook is relatively large.
  • the terminal device needs to monitor both the first DCI and the DCI used to schedule a PDSCH. For example, the terminal device monitors both the first DCI sent by the network device (used to schedule at least one PDSCH of cell combination 1) and the second DCI sent by the network device (used to schedule a PDSCH of a cell (such as cell 1)).
  • the extended K1 set used to construct the HARQ-ACK codebook is the union of the K1 set ⁇ 1,2 ⁇ and the extended K1 set determined in step 840 above (such as ⁇ 2,3,4,5 ⁇ ), that is, the extended K1 set is ⁇ 1,2,3,4,5 ⁇ .
  • Step 850 Determine HARQ-ACK information corresponding to cell 1 based on the extended K1 set corresponding to cell 1;
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a candidate PDSCH receiving opportunity set for HARQ-ACK feedback in time slot n based on the extended K1 set corresponding to cell 1, and maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH receiving opportunity set to the corresponding position in the HARQ-ACK feedback sequence based on the candidate PDSCH receiving opportunity set, thereby obtaining the HARQ-ACK information corresponding to cell 1 in the HARQ-ACK codebook transmitted in time slot n.
  • the HARQ-ACK information corresponding to the PDSCH that is successfully received in the candidate PDSCH receiving opportunity set is ACK
  • the HARQ-ACK information corresponding to the PDSCH that is failed to be received in the candidate PDSCH receiving opportunity set is NACK.
  • the HARQ-ACK information corresponding to cell 1 reserves feedback information bits for each second K1 value in the extended K1 set corresponding to cell 1. For example, when the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4,5 ⁇ , and the time slot where the HARQ-ACK corresponding to cell 1 is located is time slot n, the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slot n-1 to time slot n-5.
  • the first group of candidate PDSCH reception opportunities consists of candidate PDSCH reception opportunity 1, candidate PDSCH reception opportunity 2, and candidate PDSCH reception opportunity 3
  • the second group of candidate PDSCH reception opportunities consists of candidate PDSCH reception opportunity 1, candidate PDSCH reception opportunity 2, and candidate PDSCH reception opportunity 3.
  • the SCH receiving opportunity is composed of candidate PDSCH receiving opportunity 4 and candidate PDSCH receiving opportunity 5.
  • the first group of candidate PDSCH receiving opportunities corresponds to 1-bit feedback information bit
  • the second group of candidate PDSCH receiving opportunities corresponds to 1-bit feedback information bit.
  • candidate PDSCH receiving opportunity 1 corresponds to 1-bit feedback information bit
  • the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slot n-2 to time slot n-5.
  • corresponding feedback information bits are reserved for the candidate PDSCH receiver opportunity corresponding to each second K1 value in the extended K1 set corresponding to cell 1 according to the time domain order of the time slots where the candidate PDSCHs are located.
  • Step 860 Concatenate the HARQ-ACK information bits corresponding to cell 1, cell 2, and cell 3, respectively, to construct a HARQ-ACK codebook.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • HARQ-ACK information corresponding to cell 2 and HARQ-ACK information corresponding to cell 3 are determined in a manner similar to step 840 .
  • the HARQ-ACK codebook includes HARQ-ACK information of cell 1, cell 2 and cell 3.
  • the HARQ-ACK codebook may be obtained by concatenating the HARQ-ACK information of cell 1, cell 2 and cell 3 in ascending or descending order of the cell index.
  • a HARQ-ACK codebook is constructed based on the extended K1 set and the SLIV set.
  • a HARQ-ACK codebook is constructed based on an extended K1 set corresponding to the first cell and a SLIV set corresponding to the first cell.
  • the content of constructing the HARQ-ACK codebook based on the SLIV set can be referred to in subsequent embodiments, such as the embodiments shown in Figures 13 and 14, and will not be repeated here.
  • the method provided in this embodiment determines an extended K1 set based on at least one of the K1 set and the K0 set, and constructs a HARQ-ACK codebook based on the extended K1 set. Since the extended K1 set includes time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to the HARQ-ACK, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set.
  • FIG12 is a flow chart of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method performed by a network device and a terminal device as an example, the method includes at least some of the following steps:
  • Step 1110 The network device configures a serving cell and a cell combination for the terminal device
  • the network device configures five service cells for the terminal device through high-level signaling, namely cell 1, cell 2, cell 3, cell 4 and cell 5, among which the cell combinations that can be simultaneously scheduled by the first DCI are shown in Table 2 above.
  • Step 1120 Determine the K1 set
  • K1 set ⁇ 1, 2 ⁇ .
  • the time domain unit as a time slot as an example, assuming that the subcarrier spacing of PDSCH and PUCCH is the same, it means that the time domain offset value from the time slot where PDSCH is located to the time slot where HARQ-ACK is located is at least one of 1 and 2.
  • the network device configures the K1 set for the terminal device; or, the protocol defines the K1 set.
  • Step 1130 The network device configures a TDRA list for the terminal device
  • the TDRA list is configured based on each BWP in each cell. Taking each cell including 2 BWPs as an example, assuming that the TDRA list configured by the network device is as shown in Tables 6 to 13 below:
  • Table 7 TDRA list corresponding to cell 1 BWP2
  • the row index can also be understood as a TDRA element index.
  • each TDRA element of the TDRA list for example, in each row of the TDRA list, in addition to K0, it also includes information such as SLIV and PDSCH mapping type. This embodiment uses K0 as an example for schematic illustration, and does not mean to limit the specific content of the TDRA list.
  • different BWPs of the same cell have different K0 values.
  • each cell has BWP1, cell 1 BWP1, cell 2 BWP1 and cell 3 BWP1 are different BWPs.
  • cell 1 BWP2, cell 2 BWP2 and cell 3 BWP3 are different BWPs.
  • This embodiment takes the case where the reference PDSCH is the last PDSCH in at least one PDSCH as an example.
  • Step 1140 Determine the extended K1 set corresponding to cell 1;
  • the reference PDSCH is PDSCH@cell 1 (i.e., the PDSCH in cell 1)
  • the extended K1 set corresponding to cell 1 includes each K1 value of the K1 set. It can also be understood that when determining the extended K1 set corresponding to cell 1, when the reference PDSCH is the PDSCH in cell 1, each value of the K1 set is added to the extended K1 set corresponding to cell 1.
  • the terminal device receives the first DCI sent by the network device on the PDCCH corresponding to time slot m, and the first DCI is used to simultaneously schedule the PDSCHs corresponding to cell 1 BWP1, cell 2 BWP1, and cell 3 BWP1 in cell combination 1.
  • the network device indicates the TDRA element with a row index of 3 in the TDRA list through the TDRA field, and the TDRA element set includes each TDRA element with a row index of 3 in Table 6, Table 8, and Table 10.
  • the extended K1 set corresponding to cell 1 when the reference PDSCH is PDSCH@cell 1 (i.e., the PDSCH in cell 1), each value of the K1 set is added to the extended K1 set corresponding to cell 1.
  • the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slots n-1 to n-2.
  • the reference PDSCH is PDSCH@cell 3 (i.e., the PDSCH in cell 3), or row 2 of the TDRA list corresponding to cell 1 BWP1 (i.e., Table 6), row 2 of the TDRA list corresponding to cell 2 BWP1 (i.e., Table 8), and row 2 of the TDRA list corresponding to cell 3 BWP1 (i.e., Table 10), the reference PDSCH is PDSCH@cell 2 (i.e., the PDSCH in cell 2), then when the reference PDSCH is PDSCH@cell 3 or PDSCH@cell
  • the extended K1 set corresponding to cell 1 includes a second K1 value determined based on the K1 set and the offset value set corresponding to cell 1.
  • the offset value set corresponding to cell 1 is determined based on the first K0 value and the second K0 value of the same index.
  • the offset value set corresponding to cell 1 includes an offset value between the first K0 value and the second K0 value based on the same index.
  • the first K0 value belongs to the first K0 set of the cell corresponding to the reference PDSCH, such as the first K0 set of cell 3 BWP1 or the first K0 set of cell 2 BWP1.
  • the second K0 value belongs to the second K0 set corresponding to cell 1, such as the second K0 set corresponding to cell 1 BWP1.
  • the extended K1 set corresponding to cell 1 is determined based on each first K1 value in the K1 set and each offset value in the offset value set corresponding to cell 1 .
  • the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set and each offset value in the offset value set corresponding to cell 1 .
  • the offset value in the offset value set corresponding to cell 1 is also related to at least one of the uplink subcarrier spacing and the downlink subcarrier spacing.
  • the uplink subcarrier spacing includes the subcarrier spacing corresponding to the PUCCH, and the downlink subcarrier spacing includes the subcarrier spacing corresponding to the PDSCH.
  • the offset value in the offset value set corresponding to cell 1 is based on the difference between the first K0 value and the second K0 value having the same index and Determine, and/or, the offset value in the offset value set corresponding to cell 1 is based on the difference between the first K0 value and the second K0 value having the same index and Sure;
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index.
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index.
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the extended K1 set corresponding to cell 1 includes the K1 set plus the offset value interval. That is, the extended K1 set corresponding to cell 1 is determined based on each first K1 value in the K1 set and each offset value in the offset value interval.
  • the offset value interval is a closed interval or an open-first-and-closed interval between 0 and the maximum offset value, and the maximum offset value is the offset value with the largest value in the offset value set.
  • the terminal device receives the first DCI sent by the network device on the PDCCH corresponding to time slot m, and the first DCI is used to simultaneously schedule the PDSCHs corresponding to cell 1 BWP1, cell 2 BWP1, and cell 3 BWP1 in cell combination 1.
  • the reference PDSCH is PDSCH@cell 3 (i.e., the PDSCH in cell 3)
  • cell 1 is different from the cell corresponding to the reference PDSCH.
  • the TDRA elements corresponding to BWP1 of cell 1 include row 1, row 2 and row 3 in the TDRA list corresponding to BWP1 of cell 1 (i.e., Table 6), and the traversed TDRA elements include all TDRA elements in all TDRA lists corresponding to each BWP1 of all cells included in cell combination 1 (i.e., Table 6, Table 8, and Table 10), and the offset value set corresponding to cell 1 is determined based on the time domain offset value of the first K0 value corresponding to the reference PDSCH with the same index and the second K0 value corresponding to cell 1.
  • the reference PDSCH is the last PDSCH among PDSCH@cell1, PDSCH@cell2 and PDSCH@cell3.
  • the index is 1, the reference PDSCH is PDSCH@cell3.
  • the first K0 value corresponding to the reference PDSCH is 3.
  • the second K0 value corresponding to cell 1 is 1.
  • the index is 2
  • the reference PDSCH is PDSCH@cell2.
  • the first K0 value corresponding to the reference PDSCH is 3.
  • the second K0 value corresponding to cell 1 is 2.
  • the reference PDSCH is PDSCH@cell1.
  • the first K0 value corresponding to the reference PDSCH is 3.
  • the second K0 value corresponding to cell 1 is 3.
  • the offset value set corresponding to cell 1 is ⁇ 0,1,2 ⁇ .
  • the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set ⁇ 1,2 ⁇ and each offset value in the offset value set ⁇ 0,1,2 ⁇ corresponding to cell 1, that is, the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4 ⁇ .
  • the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slot n-1 to time slot n-4.
  • the offset value in the offset value set is also related to at least one of the uplink subcarrier spacing and the downlink subcarrier spacing, assuming that the uplink subcarrier spacing (SCS) is the same as the downlink SCS, then Then, the extended K1 set corresponding to cell 1 is ⁇ 1, 2, 3, 4 ⁇ .
  • This method of determining the extended K1 set can more accurately extend the K1 set, and the overhead required for the HARQ-ACK codebook is relatively small.
  • the TDRA elements corresponding to BWP1 of cell 1 include row 1, row 2 and row 3 in the TDRA list corresponding to BWP1 of cell 1 (i.e., Table 6), and the traversed TDRA elements include all TDRA elements in all TDRA lists corresponding to each BWP1 of all cells included in cell combination 1 (i.e., Table 6, Table 8, and Table 10), and the offset value set corresponding to cell 1 is determined based on the time domain offset value of the first K0 value corresponding to the reference PDSCH with the same index and the second K0 value corresponding to cell 1.
  • the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set ⁇ 1,2 ⁇ and each offset value in the offset value interval [0,2] corresponding to cell 1, and the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4 ⁇ ; or the extended K1 set corresponding to cell 1 is determined based on the sum of each first K1 value in the K1 set ⁇ 1,2 ⁇ and each offset value in the offset value interval (0,2] corresponding to cell 1, and the extended K1 set corresponding to cell 1 is ⁇ 2,3,4 ⁇ .
  • the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slot n-2 to time slot n-4.
  • the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4 ⁇ or ⁇ 2,3,4 ⁇ .
  • This method of determining the extended K1 set is simpler, but the overhead required for the HARQ-ACK codebook is relatively large.
  • the terminal device needs to monitor both the first DCI and the DCI used to schedule a PDSCH. For example, the terminal device monitors both the first DCI sent by the network device (used to schedule at least one PDSCH of BWP1 of all cells in cell combination 1), and the second DCI sent by the network device (used to schedule a PDSCH of a cell (such as cell 1)).
  • the extended K1 set used to construct the HARQ-ACK codebook is the union of the K1 set ⁇ 1,2 ⁇ and the extended K1 set determined in step 1140 above (such as ⁇ 2,3,4 ⁇ ), that is, the extended K1 set is ⁇ 1,2,3,4 ⁇ .
  • Step 1150 Determine HARQ-ACK information corresponding to cell 1 based on the extended K1 set corresponding to cell 1;
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a candidate PDSCH receiving opportunity set for HARQ-ACK feedback in time slot n based on the extended K1 set corresponding to cell 1, and maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH receiving opportunity set to the corresponding position in the HARQ-ACK feedback sequence based on the candidate PDSCH receiving opportunity set, thereby obtaining the HARQ-ACK information corresponding to cell 1 in the HARQ-ACK codebook transmitted in time slot n.
  • the HARQ-ACK information corresponding to the PDSCH that is successfully received in the candidate PDSCH receiving opportunity set is ACK
  • the HARQ-ACK information corresponding to the PDSCH that is failed to be received in the candidate PDSCH receiving opportunity set is NACK.
  • the HARQ-ACK information corresponding to cell 1 reserves feedback information bits for each second K1 value in the extended K1 set corresponding to cell 1. For example, when the extended K1 set corresponding to cell 1 is ⁇ 1,2,3,4 ⁇ , and the time slot where the HARQ-ACK corresponding to cell 1 is located is time slot n, the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slot n-1 to time slot n-4.
  • the HARQ-ACK information corresponding to cell 1 includes the HARQ-ACK information corresponding to the candidate PDSCH in time slot n-2 to time slot n-4.
  • corresponding feedback information bits are reserved for the candidate PDSCH receiver opportunity corresponding to each second K1 value in the extended K1 set corresponding to cell 1 according to the time domain order of the time slots where the candidate PDSCHs are located.
  • Step 1160 Concatenate the HARQ-ACK information bits corresponding to cell 1, cell 2, and cell 3, respectively, to construct a HARQ-ACK codebook.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • HARQ-ACK information corresponding to cell 2 and HARQ-ACK information corresponding to cell 3 are determined in a manner similar to step 1140 .
  • the HARQ-ACK codebook includes the HARQ-ACK information of cell 1 BWP1, cell 2 BWP1 and cell 3 BWP1.
  • the HARQ-ACK codebook can be obtained by cascading the HARQ-ACK information of cell 1 BWP1, cell 2 BWP1 and cell 3 BWP1 in ascending or descending order of cell indexes.
  • the method provided in this embodiment determines an extended K1 set based on at least one of the K1 set and the K0 set, and constructs a HARQ-ACK codebook based on the extended K1 set. Since the extended K1 set includes time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to the HARQ-ACK, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set.
  • FIG13 is a flow chart of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method performed by a terminal device as an example, the method includes at least some of the following steps:
  • Step 1210 Determine a SLIV set corresponding to the first cell based on at least one first TDRA list
  • the first cell is any cell in a combination of multiple cells that can be scheduled by the first DCI.
  • the first TDRA list is associated with multiple cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each cell in the multiple cell combinations that can be scheduled by the first DCI; or, the first TDRA list is associated with at least one cell combination among the multiple cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each cell in a cell combination.
  • the first TDRA list is associated with each BWP of a plurality of cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each BWP of each cell within the plurality of cell combinations that can be scheduled by the first DCI; or, the first TDRA list is associated with each BWP of at least one cell combination among the plurality of cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each BWP of each cell within a cell combination.
  • the SLIV set corresponding to the first cell is determined based on the union of each TDRA element in the first TDRA list and the SLIV value corresponding to the first cell, or in other words, based on the union of the SLIV values corresponding to the activated BWP of the first cell in each TDRA element in the first TDRA list.
  • the terminal device does not expect all corresponding SLIV values of the first cell in the first TDRA list to be absent from the SLIV values in the second TDRA list;
  • the second TDRA list is a TDRA list associated with the first cell.
  • the SLIV set corresponding to the first cell when the terminal device also monitors the second DCI, the SLIV set corresponding to the first cell also includes the SLIV value in the second TDRA list;
  • the second DCI is used to schedule the PDSCH of the first cell.
  • Step 1230 Construct a HARQ-ACK codebook based on the SLIV set corresponding to the first cell.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is a semi-static HARQ-ACK codebook, and the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell. It can also be understood that the semi-static HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • constructing a HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell can also be understood as constructing a semi-static HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a set of candidate PDSCH reception opportunities for HARQ-ACK feedback in time slot n based on the SLIV set, and maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH reception opportunity set to the corresponding position in the HARQ-ACK feedback sequence based on the candidate PDSCH reception opportunity set, thereby obtaining a HARQ-ACK codebook transmitted in time slot n.
  • the HARQ-ACK information corresponding to the PDSCH that is successfully received in the candidate PDSCH reception opportunity set is ACK
  • the HARQ-ACK information corresponding to the PDSCH that is failed to be received in the candidate PDSCH reception opportunity set is NACK.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a set of candidate PDSCH reception opportunities for HARQ-ACK feedback in time slot n based on the extended K1 set and the SLIV set, and based on the candidate PDSCH reception opportunity set, maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH reception opportunity set to the corresponding position in the HARQ-ACK feedback sequence, thereby obtaining the HARQ-ACK codebook transmitted in time slot n.
  • the SLIV set corresponding to the first cell includes the SLIV values corresponding to the first cell in all TDRA elements in the first TDRA list, then the HARQ-ACK bit information corresponding to each candidate time slot in the HARQ-ACK codebook includes feedback information bits corresponding to the candidate PDSCH receiving opportunity determined according to each SLIV value in the SLIV set corresponding to the first cell.
  • the HARQ-ACK codebook reserves y bits for the HARQ-ACK information of the first cell; if the y candidate PDSCH receiving opportunities overlap in the time domain, and the overlapping candidate PDSCH receiving opportunities share one feedback information bit, then the HARQ-ACK codebook reserves a number of bits less than y bits for the HARQ-ACK information corresponding to the first cell.
  • the HARQ-ACK codebook includes HARQ-ACK information of at least one cell, and the HARQ-ACK information of each cell in the at least one cell can be cascaded in ascending or descending order of the cell index to obtain the HARQ-ACK codebook.
  • the HARQ-ACK bit information corresponding to each cell in the HARQ-ACK codebook is sorted in time domain order.
  • the time domain order may be the time domain order of DCI or the time domain order of PDSCH.
  • the method provided in this embodiment determines the SLIV set corresponding to the first cell based on the first TDRA list, and constructs a HARQ-ACK codebook based on the SLIV set corresponding to the first cell. Since the SLIV set corresponding to the first cell includes the time domain offset values from multiple PDSCHs to HARQ-ACK that can be scheduled by the first DCI, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the SLIV set.
  • FIG14 shows a schematic diagram of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method performed by a network device and a terminal device as an example, the method includes at least some of the following steps:
  • Step 1310 The network device configures a serving cell and a cell combination for the terminal device
  • the network device configures four service cells for the terminal device through high-level signaling, namely cell 1, cell 2, cell 3 and cell 4, among which the cell combinations that can be simultaneously scheduled by the first DCI are shown in Table 2.
  • Step 1330 Determine a SLIV set corresponding to the first cell
  • the network device configures the TDRA list for the terminal device.
  • the TDRA list may be configured based on the BWP of each cell or the granularity, or based on the PUCCH group or the granularity, or based on the cell group or the granularity, or based on the cell combination or the granularity.
  • the TDRA list is configured based on each cell combination (per-cell combination) as an example for schematic explanation.
  • the row index can also be understood as the TDRA element index.
  • each TDRA element of the TDRA list for example, in each row of the TDRA list, in addition to SLIV, it also includes information such as K0 and PDSCH mapping type. This embodiment uses SLIV as an example for schematic illustration, and does not mean to limit the specific content of the extended TDRA list.
  • the TDRA list corresponding to the cell combination including cell 1 is called the first TDRA list
  • the TDRA elements in the first TDRA list include the SLIV values corresponding to each cell in the cell combination.
  • the first TDRA list is the TDRA list shown in Table 14, and each TDRA element (such as a TDRA row) in the extended TDRA list shown in Table 14 includes the SLIV values corresponding to cells 1, 2, and 3 in cell combination 1.
  • the SLIV set corresponding to cell 1 is determined. For example, the SLIV set corresponding to cell 1 is ⁇ 1, 3, 5 ⁇ .
  • the SLIV value is used to indicate the starting position and length of the PDSCH candidate opportunity, such as indicating the starting symbol and symbol length of the PDSCH candidate opportunity.
  • the number of bits occupied by the HARQ-ACK information corresponding to cell 1 needs to consider the overlap of the SLIV set in each time slot.
  • the first group of candidate PDSCH receiving opportunities consists of candidate PDSCH receiving opportunity 1, candidate PDSCH receiving opportunity 2 and candidate PDSCH receiving opportunity 3, and the second group of candidate PDSCH receiving opportunities consists of candidate PDSCH receiving opportunity 4 and candidate PDSCH receiving opportunity 5.
  • the first group of candidate PDSCH receiving opportunities corresponds to 1 bit of feedback information bit
  • the second group of candidate PDSCH receiving opportunities corresponds to 1 bit of feedback information bit.
  • the number of feedback information bits reserved for each time slot in the HARQ-ACK information corresponding to cell 1 is 2; or as shown in Figure 11, there is no overlap of candidate PDSCH receiving opportunities in the time domain in each time slot.
  • candidate PDSCH receiving opportunity 1 corresponds to 1 bit of feedback information bit, and the number of feedback information bits reserved for each time slot in the HARQ-ACK information corresponding to cell 1 is 1.
  • the network device configures the TDRA list based on the BWP of each cell as the object or granularity, then the SLIV set corresponding to cell 1 is determined based on the union of each TDRA element in the first TDRA list and the SLIV value corresponding to the activated BWP of the first cell, which is not repeated here.
  • Step 1350 Construct a HARQ-ACK codebook.
  • a HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is a semi-static HARQ-ACK codebook, and the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell. It can also be understood that the semi-static HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • constructing a HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell can also be understood as constructing a semi-static HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a candidate PDSCH receiving opportunity set for HARQ-ACK feedback in time slot n based on the SLIV set corresponding to cell 1, and based on the candidate PDSCH receiving opportunity set, maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH receiving opportunity set to the corresponding position in the HARQ-ACK feedback sequence, thereby obtaining the HARQ-ACK codebook transmitted in time slot n.
  • the HARQ-ACK information corresponding to the PDSCH that is successfully received in the candidate PDSCH receiving opportunity set is ACK
  • the HARQ-ACK information corresponding to the PDSCH that is failed to be received in the candidate PDSCH receiving opportunity set is the HARQ-ACK information corresponding to cell 1 in NACK.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a set of candidate PDSCH reception opportunities for HARQ-ACK feedback in time slot n based on the extended K1 set and the SLIV set corresponding to cell 1, and based on the candidate PDSCH reception opportunity set, maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH reception opportunity set to the corresponding position in the HARQ-ACK feedback sequence, thereby obtaining the HARQ-ACK information corresponding to cell 1 in the HARQ-ACK codebook transmitted in time slot n.
  • the SLIV set corresponding to cell 1 includes the SLIV values corresponding to cell 1 in all TDRA elements in the first TDRA list (i.e., Table 14), then the HARQ-ACK bit corresponding to the first cell in the HARQ-ACK codebook reserves the corresponding feedback information bit according to the candidate PDSCH receiving opportunity corresponding to each SLIV value in the SLIV set corresponding to cell 1.
  • corresponding feedback information bits are reserved for the candidate PDSCH receiver opportunity corresponding to each SLIV value in the SLIV set corresponding to cell 1 according to the time domain order of the time slots where the candidate PDSCHs are located.
  • HARQ-ACK information corresponding to cell 2 and HARQ-ACK information corresponding to cell 3 are determined in a manner similar to step 1330 .
  • the HARQ-ACK codebook includes HARQ-ACK information of cell 1, cell 2 and cell 3.
  • the HARQ-ACK codebook may be obtained by concatenating the HARQ-ACK information of cell 1, cell 2 and cell 3 in ascending or descending order of the cell index.
  • the method provided in this embodiment determines the SLIV set corresponding to the first cell based on the first TDRA list, and constructs a HARQ-ACK codebook based on the SLIV set corresponding to the first cell. Since the SLIV set corresponding to the first cell includes the time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to HARQ-ACK, it supports feedback of the HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the SLIV set.
  • the method provided in this embodiment since the method provided in this embodiment is highly flexible, it supports the constructed HARQ-ACK codebook to feedback the HARQ-ACK information of one or more PDSCHs scheduled by the DCI, that is, it is applicable to both the scenario where one DCI schedules one PDSCH and the scenario where one DCI schedules multiple PDSCHs.
  • FIG. 15 is a schematic diagram of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method performed by a network device and a terminal device as an example, the method includes at least some of the following steps:
  • Step 1410 The network device configures a serving cell and a cell combination for the terminal device
  • the network device configures four service cells for the terminal device through high-level signaling, namely cell 1, cell 2, cell 3 and cell 4, among which the cell combinations that can be simultaneously scheduled by the first DCI are shown in Table 2.
  • Step 1430 The network device configures a first TDRA list and a second TDRA list for the terminal device;
  • the network device configures a first TDRA list for the terminal device; the first TDRA list is configured based on each cell combination (per-cell combination).
  • the first TDRA list configured by the network device is as shown in Table 14.
  • the network device configures a second TDRA list for the first cell for the terminal device.
  • the first cell as cell 1 as an example, illustratively, the second TDRA list of cell 1 is shown in Table 16 below:
  • the row index can also be understood as a TDRA element index.
  • each TDRA element of the extended TDRA list for example, in each row of the extended TDRA list, in addition to SLIV, it also includes information such as K0 and PDSCH mapping type. This embodiment uses SLIV as an example for schematic illustration, and does not mean to limit the specific content of the extended TDRA list.
  • the terminal device does not expect all corresponding SLIV values of the first cell in the first TDRA list to be absent in the SLIV values in the second TDRA list; wherein the second TDRA list is a TDRA list associated with the first cell.
  • the terminal device does not expect that all of the SLIV values 1, 3, and 5 corresponding to cell 1 in the first TDRA list do not exist in the SLIV values 1, 3, 5, and 7 in the second TDRA list. It can also be understood that the union of the SLIV values ⁇ 1, 3, 5 ⁇ corresponding to cell 1 in the first TDRA list should be included in the union of the SLIV values ⁇ 1, 3, 5, 7 ⁇ corresponding to cell 1 in the second TDRA list.
  • Step 1450 Determine a SLIV set corresponding to the first cell
  • a SLIV set corresponding to the first cell is determined based on the first TDRA list.
  • the SLIV set corresponding to the first cell is determined based on the union of the SLIV values corresponding to the first cell in the first TDRA list. For example, the SLIV set corresponding to the first cell is the union of the SLIV values corresponding to cell 1 in the first TDRA list ⁇ 1, 3, 5 ⁇ .
  • the terminal device also monitors the second DCI, and the second DCI is used to schedule the PDSCH of the first cell, then the SLIV set corresponding to the first cell also includes the SLIV value in the second TDRA list. That is to say, the SLIV set corresponding to the first cell includes not only the union of the SLIV values corresponding to cell 1 in the first TDRA list ⁇ 1,3,5 ⁇ , but also the union of the SLIV values corresponding to cell 1 in the second TDRA list ⁇ 1,3,5,7 ⁇ .
  • Step 1470 Construct a HARQ-ACK codebook.
  • a HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is a semi-static HARQ-ACK codebook, and the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell. It can also be understood that the semi-static HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • constructing a HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell can also be understood as constructing a semi-static HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a candidate PDSCH receiving opportunity set for HARQ-ACK feedback in time slot n based on the SLIV set corresponding to cell 1, and maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH receiving opportunity set to the corresponding position in the HARQ-ACK feedback sequence based on the candidate PDSCH receiving opportunity set, thereby obtaining the HARQ-ACK information corresponding to cell 1 in the HARQ-ACK codebook transmitted in time slot n.
  • the HARQ-ACK information corresponding to the PDSCH that is successfully received in the candidate PDSCH receiving opportunity set is ACK
  • the HARQ-ACK information corresponding to the PDSCH that is failed to be received in the candidate PDSCH receiving opportunity set is NACK.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a set of candidate PDSCH reception opportunities for HARQ-ACK feedback in time slot n based on the extended K1 set and SLIV set corresponding to cell 1, and based on the candidate PDSCH reception opportunity set, maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH reception opportunity set to the corresponding position in the HARQ-ACK feedback sequence, thereby obtaining the HARQ-ACK information corresponding to cell 1 in the HARQ-ACK codebook transmitted in time slot n.
  • the SLIV set corresponding to cell 1 includes the SLIV values corresponding to cell 1 in all TDRA elements in the first TDRA list (i.e., Table 14), then the HARQ-ACK bit corresponding to the first cell in the HARQ-ACK codebook reserves the corresponding feedback information bit according to the candidate PDSCH receiving opportunity corresponding to each SLIV value in the SLIV set corresponding to cell 1.
  • the terminal device monitors both the first DCI and the second DCI used to schedule the PDSCH of the first cell, and the SLIV set used to construct the HARQ-ACK codebook is the union of the SLIV value corresponding to cell 1 in the first TDRA list and the SLIV value corresponding to cell 1 in the second TDRA list.
  • HARQ-ACK information corresponding to cell 2 and HARQ-ACK information corresponding to cell 3 are determined in a manner similar to step 1430 , step 1450 , and step 1470 .
  • the HARQ-ACK codebook includes HARQ-ACK information of cell 1, cell 2 and cell 3.
  • the HARQ-ACK codebook may be obtained by concatenating the HARQ-ACK information of cell 1, cell 2 and cell 3 in ascending or descending order of the cell index.
  • the method provided in this embodiment determines the SLIV set corresponding to the first cell based on the first TDRA list and the second TDRA list, and constructs a HARQ-ACK codebook based on the SLIV set corresponding to the first cell. Since the SLIV set corresponding to the first cell includes the time domain offset values from multiple PDSCHs to HARQ-ACK that can be scheduled by the first DCI, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the SLIV set. And the overhead required for the constructed HARQ-ACK codebook is small.
  • FIG. 16 shows a schematic diagram of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method being performed by a network device as an example, the method includes at least some of the following steps:
  • Step 1510 configure the K1 set and the K0 set
  • the network device sends the configuration of the K1 set and the K0 set to the terminal device.
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset from PDCCH to PDSCH.
  • the PDCCH carries the first DCI for scheduling at least one PDSCH.
  • the at least one PDSCH corresponds to at least one cell
  • the reference PDSCH is one of the at least one PDSCH.
  • Step 1530 Determine the extended K1 set
  • the extended K1 set is determined based on the K1 set; and/or the extended K1 set is determined based on the K1 set and the K0 set.
  • the K0 set includes K0 values in a TDRA element set
  • the TDRA element set includes K0 values corresponding to each cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • the specific content of determining the extended K1 set may refer to the above embodiments, for example, it is similar to the relevant content in the embodiments shown in Figures 5, 6, 7, 8, and 12, and will not be repeated here.
  • Step 1550 Receive the HARQ-ACK codebook.
  • the network device receives a HARQ-ACK codebook sent by the terminal device, where the HARQ-ACK codebook is constructed based on an extended K1 set.
  • the HARQ-ACK codebook is sent by the terminal device on the PUCCH.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is associated with HARQ-ACK information corresponding to at least one cell corresponding to at least one PDSCH.
  • the HARQ-ACK codebook is obtained by concatenating HARQ-ACK information bits corresponding to at least one cell corresponding to at least one PDSCH.
  • the network device also sends a first DCI to the terminal device, where the first DCI is used to schedule at least one PDSCH.
  • the network device sends the first DCI on the PDCCH.
  • the network device further configures at least one first TDRA list or at least two second TDRA lists.
  • Each TDRA element of the first TDRA list and/or the second TDRA list includes at least one of information such as K0, SLIV, and PDSCH mapping type.
  • the first TDRA list is associated with a plurality of cell combinations that can be scheduled by the first DCI.
  • the second TDRA list is associated with a cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • the reference PDSCH is: the first PDSCH; or the last PDSCH; or the PDSCH with the smallest cell index; or the PDSCH with the largest cell index in at least one PDSCH.
  • the "first PDSCH” may also be referred to as the "earliest PDSCH”, where "earliest” is determined by the start position or start symbol of the PDSCH; the “last PDSCH” may also be referred to as the “latest PDSCH”, where "last” or “latest” is determined by the end position or end symbol of the PDSCH.
  • the network device further sends a second DCI to the terminal device, where the second DCI is used to schedule a PDSCH of a cell.
  • the method provided in this embodiment supports the terminal device to construct a HARQ-ACK codebook through the K1 set and the K0 set by configuring the K1 set and the K0 set, and further supports the terminal device to feedback the HARQ-ACK information of multiple PDSCHs scheduled by the first DCI through the constructed HARQ-ACK codebook.
  • FIG. 17 shows a schematic diagram of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method being performed by a network device as an example, the method includes at least some of the following steps:
  • Step 1610 Configure at least one first TDRA list
  • the network device sends a configuration of a first TDRA list to the terminal device, where the first TDRA list is used to determine a SLIV set corresponding to a first cell, where the first cell is any cell in a combination of multiple cells that can be scheduled by the first DCI.
  • the first TDRA list is associated with a plurality of cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include a SLIV value corresponding to each cell in the plurality of cell combinations that can be scheduled by the first DCI;
  • the first TDRA list is associated with one cell combination among multiple cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV value corresponding to each cell in the one cell combination.
  • Step 1630 Determine a SLIV set corresponding to the first cell
  • the specific content of determining the SLIV set corresponding to the first cell can refer to the above embodiments, for example, it is similar to the relevant content in the embodiments shown in Figures 13, 14, and 15, and will not be repeated here.
  • Step 1650 Receive the HARQ-ACK codebook.
  • the network device receives a HARQ-ACK codebook sent by the terminal device, where the HARQ-ACK codebook is constructed based on a SLIV set corresponding to the first cell.
  • the HARQ-ACK codebook is sent by the terminal device on the PUCCH, and the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the network device also sends a first DCI to the terminal device, where the first DCI is used to schedule at least one PDSCH.
  • the network device sends the first DCI on the PDCCH.
  • the network device further configures at least one first TDRA list and/or a second TDRA list.
  • Each TDRA element of the first TDRA list and/or the second TDRA list includes at least one of information such as K0, LIV, and PDSCH mapping type.
  • the terminal device does not expect any corresponding SLIV value of the first cell in the first TDRA list to be absent in the SLIV value in the second TDRA list; wherein the second TDRA list is a TDRA list associated with the first cell.
  • the network device also sends a second DCI to the terminal device, where the second DCI is used to schedule the PDSCH of the first cell.
  • the method provided in this embodiment supports the terminal device to construct a HARQ-ACK codebook through the first TDRA list by configuring the first TDRA list including the SLIV value corresponding to each cell in the cell combination, and further supports the terminal device to feedback the HARQ-ACK information of one or more PDSCHs scheduled by DCI through the constructed HARQ-ACK codebook.
  • FIG18 is a schematic diagram of a HARQ-ACK codebook construction method provided by some exemplary embodiments of the present application. Taking the method performed by a terminal device and a network device as an example, the method includes at least some of the following steps:
  • Step 1802 Construct a HARQ-ACK codebook based on the extended K1 set and the SLIV set.
  • the HARQ-ACK codebook includes HARQ-ACK information corresponding to the first cell.
  • the first cell is any cell in a combination of multiple cells that can be scheduled by the first DCI.
  • a HARQ-ACK codebook is constructed based on an extended K1 set corresponding to the first cell and a SLIV set corresponding to the first cell.
  • the extended K1 set is determined based on at least one of the K1 set and the K0 set.
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset from PDCCH to PDSCH.
  • the PDCCH carries the first DCI for scheduling at least one PDSCH.
  • the at least one PDSCH corresponds to at least one cell
  • the reference PDSCH is one of the at least one PDSCH.
  • the PDCCH carries a first DCI for scheduling at least two PDSCHs, and the at least two PDSCHs correspond to at least two cells.
  • the first K1 value in the K1 set is used to indicate the time domain offset between the time domain unit where the reference PDSCH is located or occupied and the time domain unit where the HARQ-ACK is located or occupied.
  • the K0 value in the K0 set is used to indicate the time domain offset between the time domain unit where the PDCCH is located or occupied and the time domain unit where the PDSCH is located or occupied.
  • the extended K1 set includes time domain offset values from a plurality of PDSCHs to HARQ-ACK that can be scheduled by the first DCI.
  • HARQ-ACK information corresponding to the PDSCH of cells in the same PUCCH group is fed back in the same cell.
  • a cell group refers to a set of service cells configured by a network device.
  • a cell combination refers to a scheduling set formed by at least two cells supporting simultaneous scheduling of a DCI, which is a subset or a full set of cell groups; or, the cell combination is a subset or a full set of PUCCH groups, which can also be understood as the cell combination being a subset or a full set of cells included in the PUCCH group.
  • each cell group includes at least one PUCCH group. In some embodiments, each cell group includes at least one cell combination.
  • the number of second K1 values in the extended K1 set is greater than or equal to the number of first K1 values in the K1 set.
  • the time domain offset comprises at least one of a subframe offset, a slot offset, a subslot offset, a symbol group offset, and a symbol offset.
  • the extended K1 set is determined based on the K1 set; and/or, the extended K1 set is determined based on the K1 set and the K0 set.
  • the first TDRA list is associated with multiple cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each cell in the multiple cell combinations that can be scheduled by the first DCI; or, the first TDRA list is associated with at least one cell combination among the multiple cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each cell in a cell combination.
  • the first TDRA list is associated with each BWP of a plurality of cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each BWP of each cell within the plurality of cell combinations that can be scheduled by the first DCI; or, the first TDRA list is associated with each BWP of at least one cell combination among the plurality of cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV values corresponding to each BWP of each cell within a cell combination.
  • the SLIV set corresponding to the first cell is determined based on the union of each TDRA element in the first TDRA list and the SLIV value corresponding to the first cell, or in other words, based on the union of the SLIV values corresponding to the activated BWP of the first cell in each TDRA element in the first TDRA list.
  • the terminal device does not expect all corresponding SLIV values of the first cell in the first TDRA list to be absent from the SLIV values in the second TDRA list;
  • the second TDRA list is a TDRA list associated with the first cell.
  • the SLIV set corresponding to the first cell when the terminal device also monitors the second DCI, the SLIV set corresponding to the first cell also includes the SLIV value in the second TDRA list;
  • the second DCI is used to schedule the PDSCH of the first cell.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is a semi-static HARQ-ACK codebook, and the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell. It can also be understood that the semi-static HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • constructing a HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell can also be understood as constructing a semi-static HARQ-ACK codebook based on an extended K1 set and a SLIV set corresponding to the first cell.
  • the terminal device when configured to use a semi-static HARQ-ACK codebook, determines a set of candidate PDSCH reception opportunities for HARQ-ACK feedback in time slot n based on the extended K1 set and the SLIV set, and based on the candidate PDSCH reception opportunity set, maps the HARQ-ACK information corresponding to the PDSCH received in the candidate PDSCH reception opportunity set to the corresponding position in the HARQ-ACK feedback sequence, thereby obtaining the HARQ-ACK codebook transmitted in time slot n.
  • the SLIV set corresponding to the first cell includes the SLIV values corresponding to the first cell in all TDRA elements in the first TDRA list, then the HARQ-ACK bit information corresponding to each candidate time slot in the HARQ-ACK codebook includes feedback information bits corresponding to the candidate PDSCH receiving opportunity determined according to each SLIV value in the SLIV set corresponding to the first cell.
  • the HARQ-ACK codebook reserves y bits for the HARQ-ACK information of the first cell; if the y candidate PDSCH receiving opportunities overlap in the time domain, and the overlapping candidate PDSCH receiving opportunities share one feedback information bit, then the HARQ-ACK codebook reserves a number of bits less than y bits for the HARQ-ACK information corresponding to the first cell.
  • the HARQ-ACK codebook includes HARQ-ACK information of at least one cell, and the HARQ-ACK information of each cell in the at least one cell can be cascaded in ascending or descending order of the cell index to obtain the HARQ-ACK codebook.
  • the HARQ-ACK bit information corresponding to each cell in the HARQ-ACK codebook is sorted in time domain order.
  • the time domain order may be the time domain order of DCI or the time domain order of PDSCH.
  • the method provided in this embodiment constructs a HARQ-ACK codebook based on the extended K1 set corresponding to the first cell and the SLIV set corresponding to the first cell. Since the extended K1 set corresponding to the first cell and the SLIV set corresponding to the first cell include time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to HARQ-ACK, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set and the SLIV set.
  • FIG. 19 shows a schematic diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application, the device including at least some of the following first determination module 1710, first receiving module 1730, and first sending module 1750:
  • a first determining module 1710 is configured to construct a HARQ-ACK codebook based on an extended K1 set, where the extended K1 set is determined based on at least one of a K1 set and a K0 set;
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset between PDCCH and PDSCH
  • the PDCCH carries the first DCI for scheduling at least one PDSCH
  • the at least one PDSCH corresponds to at least one cell
  • the reference PDSCH is one of the at least one PDSCH.
  • the first determination module 1710 is further configured to determine the extended K1 set based on the K1 set; and/or determine the extended K1 set based on the K1 set and the K0 set.
  • the K0 set includes K0 values in a TDRA element set
  • the TDRA element set includes K0 values corresponding to each cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • the TDRA element set includes at least one TDRA element in at least one first TDRA list, and the first TDRA list is associated with the cell combination; or, the TDRA element set includes at least two TDRA elements in at least two second TDRA lists, and each of the second TDRA lists is associated with a cell in the cell combination.
  • the first determination module 1710 is further configured to determine a second K1 value based on the K1 set and an offset value set corresponding to the first cell;
  • the offset value set corresponding to the first cell is determined based on a first K0 value and a second K0 value having the same index, the index is used to identify the TDRA element in the TDRA element set, the first K0 value belongs to the first K0 set of the cell corresponding to the reference PDSCH, and the second K0 value belongs to the second K0 set corresponding to the first cell.
  • the offset value set corresponding to the first cell includes the offset value between the first K0 value and the second K0 value having the same index.
  • the first determination module 1710 is further configured to determine the second K1 value based on each first K1 value in the K1 set and each offset value in the offset value set corresponding to the first cell.
  • the first determination module 1710 is further configured to determine the second K1 value based on the sum of each first K1 value in the K1 set and each offset value in the offset value set corresponding to the first cell.
  • the first determination module 1710 is further configured to determine the second K1 value based on each first K1 value in the K1 set and each offset value in the offset value interval corresponding to the first cell;
  • the offset value interval is a closed interval or an open-first-and-closed-later interval between 0 and a maximum offset value
  • the maximum offset value is the offset value with the largest value in the offset value set.
  • the first determination module 1710 is further configured to determine the second K1 value based on the sum of each first K1 value in the K1 set and each offset value in the offset value interval corresponding to the first cell.
  • the first cell and the cell corresponding to the reference PDSCH are different.
  • the first determining module 1710 determines an offset value set corresponding to the first cell based on a first K0 value and a second K0 value having the same index, the index being used to identify the TDRA element in the TDRA element set, the first K0 value belonging to a first K0 set of the cell corresponding to the reference PDSCH, and the second K0 value belonging to a second K0 set corresponding to the first cell;
  • the first TDRA element includes TDRA information corresponding to the first cell, and the at least two TDRA elements corresponding to the first index include TDRA information corresponding to the first cell.
  • the first determination module 1710 is further used to determine an extended K1 set corresponding to the first cell based on the sum of each first K1 value in the K1 set and each offset value in the offset value set corresponding to the first cell.
  • the first determination module 1710 is further configured to determine an extended K1 set corresponding to the first cell based on a sum of each first K1 value in the K1 set and each value in the offset value interval corresponding to the first cell;
  • the offset value interval is a closed interval or an open-first-and-closed-later interval between 0 and a maximum offset value
  • the maximum offset value is the offset value with the largest value in the offset value set.
  • the offset values in the offset value set are also related to at least one of the uplink subcarrier spacing and the downlink subcarrier spacing.
  • the offset value in the offset value set corresponding to the first cell is based on the difference between the first K0 value and the second K0 value having the same index and Determine, and/or, the offset value in the offset value set corresponding to the first cell is based on the difference between the first K0 value and the second K0 value having the same index and Sure;
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index.
  • the offset value in the offset value set corresponding to the first cell is the difference between the first K0 value and the second K0 value having the same index and The product of
  • ⁇ DL represents the value of ⁇ corresponding to the downlink subcarrier spacing
  • ⁇ UL represents the value of ⁇ corresponding to the uplink subcarrier spacing
  • the extended K1 set corresponding to the first cell in the cell combination includes: each K1 value in the K1 set.
  • the first cell among the at least one cell is the cell to which the reference PDSCH corresponds.
  • the first determining module 1710 is further configured to determine, for a second TDRA element in the TDRA element set or at least two TDRA elements corresponding to a second index in the TDRA element set, the extended K1 set based on each first K1 value in the K1 set when the first cell is the cell corresponding to the reference PDSCH;
  • the second TDRA element includes TDRA information corresponding to the first cell, and the at least two TDRA elements corresponding to the second index include TDRA information corresponding to the first cell.
  • the extended K1 set is associated with a cell in a plurality of cell combinations that can be scheduled by the first DCI, or the extended K1 set is associated with a BWP in a cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • the extended K1 set is associated with a cell in the cell combination, or the extended K1 set is associated with a BWP in a cell in the cell combination.
  • the reference PDSCH is one of the at least one PDSCH:
  • the first PDSCH or,
  • the last PDSCH or,
  • a PDSCH with the smallest cell index A PDSCH with the smallest cell index
  • the PDSCH with the largest cell index is the PDSCH with the largest cell index.
  • the extended K1 set when the terminal device also monitors the second DCI, the extended K1 set includes each first K1 value in the K1 set;
  • the second DCI is used to schedule a PDSCH of a cell.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the apparatus further comprises a first receiving module 1730 for receiving configurations of the K1 set and the K0 set.
  • the first receiving module 1730 is used to receive a first DCI, where the first DCI is used to schedule multiple PDSCHs.
  • the first receiving module 1730 is configured to receive a first TDRA list or a second TDRA list.
  • the first receiving module 1730 is configured to receive an indication of a reference PDSCH among a plurality of PDSCHs.
  • the first receiving module 1730 is used to receive a second DCI, where the second DCI is used to schedule a PDSCH of a cell.
  • the apparatus further includes a first sending module 1750, configured to send a HARQ-ACK codebook.
  • the first sending module 1750 sends the HARQ-ACK codebook on the PUCCH.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is associated with HARQ-ACK information corresponding to at least one cell corresponding to the at least one PDSCH.
  • the HARQ-ACK codebook is obtained by concatenating HARQ-ACK information bits corresponding to at least one cell corresponding to the at least one PDSCH.
  • the device determines an extended K1 set based on at least one of the K1 set and the K0 set, and constructs a HARQ-ACK codebook based on the extended K1 set. Since the extended K1 set includes time domain offset values from multiple PDSCHs that can be scheduled by the first DCI to the HARQ-ACK, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the extended K1 set.
  • FIG20 shows a schematic diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application, wherein the device includes at least some of the following second determination module 1810, second receiving module 1830, and second sending module 1850:
  • the second determination module 1810 is configured to determine a SLIV set corresponding to a first cell based on at least one first TDRA list; the first cell is any cell in a combination of multiple cells that can be scheduled by the first DCI;
  • the HARQ-ACK codebook is constructed based on the SLIV set corresponding to the first cell.
  • the first TDRA list is associated with a plurality of cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include a SLIV value corresponding to each cell in the plurality of cell combinations that can be scheduled by the first DCI;
  • the first TDRA list is associated with one cell combination among multiple cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV value corresponding to each cell in the one cell combination.
  • the second determination module 1810 is further used to determine the SLIV set corresponding to the first cell based on the union of the SLIV values corresponding to the first cell in each of the TDRA elements in the first TDRA list.
  • the terminal device does not expect any corresponding SLIV value of the first cell in the first TDRA list to be present in the SLIV values in the second TDRA list;
  • the second TDRA list is a TDRA list associated with the first cell.
  • the SLIV set corresponding to the first cell when the terminal device also monitors the second DCI, the SLIV set corresponding to the first cell also includes the SLIV value in the second TDRA list;
  • the second DCI is used to schedule the PDSCH of the first cell.
  • the apparatus further includes a second receiving module 1830, configured to receive a configuration of a first TDRA list, wherein the TDRA elements in the first TDRA list include a SLIV value corresponding to each cell in the cell combination.
  • the second receiving module 1830 is used to receive a first DCI, where the first DCI is used to schedule at least one PDSCH.
  • the second receiving module 1830 is configured to receive a second TDRA list.
  • Each TDRA element in the second TDRA list includes at least one of information such as K0, LIV, and PDSCH mapping type of the first cell.
  • the second receiving module 1830 is used to receive a second DCI, where the second DCI is used to schedule the PDSCH of the first cell.
  • the apparatus further includes a second sending module 1850, configured to send a HARQ-ACK codebook.
  • the second sending module 1850 sends the HARQ-ACK codebook on the PUCCH.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the device determines the SLIV set corresponding to the first cell based on the first TDRA list, and constructs a HARQ-ACK codebook based on the SLIV set corresponding to the first cell. Since the SLIV set corresponding to the first cell includes time domain offset values from multiple PDSCHs to HARQ-ACK that can be scheduled by the first DCI, it supports feedback of HARQ-ACK information of at least one PDSCH scheduled by the first DCI through the HARQ-ACK codebook constructed based on the SLIV set.
  • FIG. 21 shows a schematic diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application, wherein the device includes at least some of the following third sending module 1910, third receiving module 1930, and third determining module 1950:
  • the third sending module 1910 is used to configure the K1 set and the K0 set.
  • the first K1 value in the K1 set is used to indicate the time domain offset from the reference PDSCH to HARQ-ACK
  • the K0 value in the K0 set is used to indicate the time domain offset from PDCCH to PDSCH.
  • the PDCCH carries the first DCI for scheduling at least one PDSCH.
  • the at least one PDSCH corresponds to at least one cell
  • the reference PDSCH is one of the at least one PDSCH.
  • the third receiving module 1930 is configured to receive a HARQ-ACK codebook.
  • the third determination module 1950 is used to determine the extended K1 set.
  • the third determination module 1950 is used to determine the extended K1 set based on the K1 set, and/or is used to determine the extended K1 set based on the K1 set and the K0 set.
  • the network device receives a HARQ-ACK codebook sent by the terminal device, where the HARQ-ACK codebook is constructed based on an extended K1 set.
  • the HARQ-ACK codebook is sent by the terminal device on the PUCCH.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the HARQ-ACK codebook is associated with HARQ-ACK information corresponding to at least one cell corresponding to at least one PDSCH.
  • the HARQ-ACK codebook is obtained by concatenating HARQ-ACK information bits corresponding to at least one cell corresponding to at least one PDSCH.
  • the third sending module 1910 is further used to send a first DCI to the terminal device, where the first DCI is used to schedule at least one PDSCH.
  • the third sending module 1910 is further configured to send the first DCI on the PDCCH.
  • the third sending module 1910 is further used to configure at least one first TDRA list or at least two second TDRA lists.
  • Each TDRA element of the first TDRA list or the second TDRA list includes at least one of information such as K0, LIV, and PDSCH mapping type.
  • the first TDRA list is associated with a plurality of cell combinations that can be scheduled by the first DCI.
  • the second TDRA list is associated with a cell in a plurality of cell combinations that can be scheduled by the first DCI.
  • the reference PDSCH is: the first PDSCH; or the last PDSCH; or the PDSCH with the smallest cell index; or the PDSCH with the largest cell index in at least one PDSCH.
  • the third sending module 1910 is further used to send a second DCI to the terminal device, where the second DCI is used to schedule a small PDSCH.
  • the device provided in this embodiment supports the terminal device to construct a HARQ-ACK codebook through the K1 set and the K0 set by configuring the K1 set and the K0 set, and further supports the terminal device to feedback the HARQ-ACK information of multiple PDSCHs scheduled by the first DCI through the constructed HARQ-ACK codebook.
  • FIG22 shows a schematic diagram of a HARQ-ACK codebook construction device provided by some exemplary embodiments of the present application, wherein the device includes at least part of the following fourth sending module 2010, fourth receiving module 2030, and fourth determining module 2050:
  • the fourth sending module 2010 is used to configure at least one first TDRA list.
  • the first TDRA list is used to determine a SLIV set corresponding to a first cell, where the first cell is any cell in a combination of multiple cells that can be scheduled by the first DCI.
  • the first TDRA list is associated with a plurality of cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include a SLIV value corresponding to each cell in the plurality of cell combinations that can be scheduled by the first DCI;
  • the first TDRA list is associated with one cell combination among multiple cell combinations that can be scheduled by the first DCI, and the TDRA elements in the first TDRA list include the SLIV value corresponding to each cell in the one cell combination.
  • the fourth receiving module 2030 is configured to receive a HARQ-ACK codebook.
  • the fourth determination module 2050 is configured to determine a SLIV set corresponding to the first cell.
  • the fourth determination module 2050 is used to determine a SLIV set corresponding to the first cell based on the first TDRA list.
  • the HARQ-ACK codebook is a Type 1 HARQ-ACK codebook.
  • the fourth sending module 2010 is further used to send a first DCI to the terminal device, where the first DCI is used to schedule at least one PDSCH.
  • the fourth sending module 2010 is further configured to send the first DCI on the PDCCH.
  • the fourth sending module 2010 is further used to configure at least one first TDRA list and/or a second TDRA list.
  • Each TDRA element of the first TDRA list or the second TDRA list includes at least one of information such as K0, LIV, and PDSCH mapping type.
  • the terminal device does not expect any corresponding SLIV value of the first cell in the first TDRA list to be absent in the SLIV value in the second TDRA list; wherein the second TDRA list is a TDRA list associated with the first cell.
  • the fourth sending module 2010 is further used to send a second DCI to the terminal device, where the second DCI is used to schedule the PDSCH of the first cell.
  • the apparatus supports the terminal device to construct a HARQ-ACK codebook through the first TDRA list by configuring the first TDRA list including the SLIV value corresponding to each cell in the cell combination, and further supports the terminal device to feedback the HARQ-ACK information of one or more PDSCHs scheduled by the DCI through the constructed HARQ-ACK codebook.
  • the device provided in the above embodiment is only illustrated by the division of the above functional modules.
  • the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.
  • Figure 23 shows a schematic diagram of the structure of a communication device (terminal device or network device) provided in some exemplary embodiments of the present application.
  • the communication device 2200 includes: a processor 2201, a receiver 2202, a transmitter 2203, a memory 2204 and a bus 2205.
  • the processor 2201 includes one or more processing cores, and the processor 2201 executes various functional applications and information processing by running software programs and modules. In some embodiments, the processor 2201 can be used to implement the functions and steps of the first determination module 1710 and/or the second determination module 1810 described above.
  • the receiver 2202 and the transmitter 2203 may be implemented as a communication component, which may be a communication chip.
  • the receiver 2202 may be used to implement the functions and steps of the first receiving module 1730 and/or the second receiving module 1830 and/or the third receiving module 1930 and/or the fourth receiving module 2030 as described above.
  • the transmitter 2203 may be used to implement the functions and steps of the first sending module 1750 and/or the second sending module 1850 and/or the third sending module 1910 and/or the fourth sending module 2010 as described above.
  • the memory 2204 is connected to the processor 2201 via a bus 2205.
  • the memory 2204 may be used to store at least one instruction, and the processor 2201 may be used to execute the at least one instruction to implement each step in the above method embodiment.
  • memory 2204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Static Random-Access Memory (SRAM), Read-Only Memory (ROM), magnetic storage, flash memory, and Programmable Read-Only Memory (PROM).
  • the receiver 2202 receives signals/data independently, or the processor 2201 controls the receiver 2202 to receive signals/data, or the processor 2201 requests the receiver 2202 to receive signals/data, or the processor 2201 cooperates with the receiver 2202 to receive signals/data.
  • the transmitter 2203 independently sends signals/data, or the processor 2201 controls the transmitter 2203 to send signals/data, or the processor 2201 requests the transmitter 2203 to send signals/data, or the processor 2201 cooperates with the transmitter 2203 to send signals/data.
  • a computer-readable storage medium in which at least one program is stored, and the at least one program is loaded and executed by the processor to implement the HARQ-ACK codebook construction method provided in the above-mentioned various method embodiments.
  • a chip is also provided, which includes a programmable logic circuit and/or program instructions.
  • the chip runs on a communication device, it is used to implement the HARQ-ACK codebook construction method provided by the above-mentioned various method embodiments.
  • a computer program product is also provided.
  • the computer program product is executed on a processor of a computer device, the computer device executes the above-mentioned HARQ-ACK codebook construction method.
  • a computer program is also provided.
  • the computer program includes computer instructions.
  • a processor of a computer device executes the computer instructions so that the computer device performs the HARQ-ACK codebook construction method.
  • Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another.
  • the storage medium can be any available medium that a general or special-purpose computer can access.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande se rapporte au domaine des communications et divulgue un procédé et un appareil de construction de livre de codes HARQ-ACK, un dispositif et un support de stockage. Le procédé consiste à : construire un livre de codes HARQ-ACK sur la base d'un ensemble K1 étendu, l'ensemble K1 étendu étant déterminé sur la base d'un ensemble K1 et/ou d'un ensemble K0. L'ensemble K1 étendu est déterminé sur la base de l'ensemble K1 et/ou de l'ensemble K0, et le livre de codes HARQ-ACK est construit sur la base de l'ensemble K1 étendu. Étant donné qu'un décalage de domaine temporel parmi une pluralité de PDSCH planifiés par des premières DCI à HARQ-ACK et un décalage de domaine temporel d'un PDCCH à la pluralité de PDSCH sont tous deux associés à l'ensemble K1 étendu, des informations HARQ-ACK de la pluralité des PDSCH planifiés par les premières DCI sont prises en charge pour être renvoyées au moyen du livre de codes HARQ-ACK construit sur la base de l'ensemble K1 étendu.
PCT/CN2022/122847 2022-09-29 2022-09-29 Procédé et appareil de construction de livre de codes harq-ack, dispositif et support de stockage WO2024065486A1 (fr)

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