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EP-4418585-B1 - RESOURCE DETERMINING AND RECEIVING METHODS AND DEVICES, ELECTRONIC DEVICE, AND STORAGE MEDIUM

EP4418585B1EP 4418585 B1EP4418585 B1EP 4418585B1EP-4418585-B1

Inventors

  • GOU, WEI
  • HAO, PENG
  • FU, TING

Dates

Publication Date
20260513
Application Date
20200323

Claims (10)

  1. A method for wireless communication, comprising: determining, by a terminal device, a Physical Uplink Control Channel, PUCCH, resource set according to a number of bits of a Hybrid Automatic Repeat reQuest Acknowledgement, HARQ-ACK, codebook into which multiple HARQ-ACK codebooks are multiplexed, wherein the multiple HARQ-ACK codebooks comprise a first HARQ-ACK codebook having a low priority and a second HARQ-ACK codebook having a high priority, wherein the high priority is the highest priority among the priorities of the multiple HARQ-ACK codebooks, wherein the multiple HARQ-ACK codebooks correspond to different PUCCHs that overlap in time domain; determining, by the terminal device, a PUCCH resource from the PUCCH resource set according to a PUCCH resource indicator, PRI, in a last Downlink Control Information, DCI, among one or more DCIs, wherein the one or more DCIs correspond to one or more Physical Downlink Shared Channel, PDSCH, associated with the second HARQ-ACK codebook having the high priority in the multiple HARQ-ACK codebooks; and multiplexing, by the terminal device, the multiple HARQ-ACK codebooks into the HARQ-ACK codebook as a PUCCH transmission using the PUCCH resource.
  2. The method of claim 1, wherein the multiple HARQ-ACK codebooks are multiplexed into the HARQ-ACK codebook according to an order of the different priorities of the multiple HARQ-ACK codebooks from high to low.
  3. The method of claim 1 or 2, wherein a total number of bits of the HARQ-ACK codebook is no more than 2, and wherein there exists a predefined relationship between values of bits of HARQ-ACK information of the HARQ-ACK codebook and a sequence cyclic shift.
  4. The method of any of claims 1 to 3, wherein, in case the PUCCH resource is in a format 2, 3, or 4, the multiple HARQ-ACK codebooks are encoded and modulated independently, and wherein encoded and modulated information corresponding to the second HARQ-ACK codebook having the high priority is mapped to the PUCCH resource prior to encoded and modulated information corresponding to the first HARQ-ACK codebook having the low priority in the multiple HARQ-ACK codebooks.
  5. A method for wireless communication, comprising: receiving, by a base station, a Hybrid Automatic Repeat reQuest Acknowledgement, HARQ-ACK, codebook in a Physical Uplink Control Channel, PUCCH, resource, wherein the HARQ-ACK codebook is formed by multiplexing multiple HARQ-ACK codebooks that comprise a first HARQ-ACK codebook having a low priority and a second HARQ-ACK codebook having a high priority, wherein the high priority is the highest priority among the priorities of the multiple HARQ-ACK codebooks, wherein the multiple HARQ-ACK codebooks correspond to different PUCCHs that overlap in time domain; wherein the PUCCH resource is selected from a PUCCH resource set according to a PUCCH resource indicator, PRI, in last Downlink Control Information, DCI, among one or more DCIs, wherein the one or more DCIs correspond to one or more Physical Downlink Shared Channel, PDSCH, associated with the second HARQ-ACK codebook having the high priority in the multiple HARQ-ACK codebooks, and wherein the PUCCH resource set is determined according to a number of bits of the HARQ-ACK codebook formed by multiplexing the multiple HARQ-ACK codebooks.
  6. The method of claim 5, wherein the multiple HARQ-ACK codebooks are multiplexed into the HARQ-ACK codebook according to an order of the different priorities of the multiple HARQ-ACK codebooks from high to low.
  7. The method of claim 5 or 6, wherein a total number of bits of the HARQ-ACK codebook is no more than 2, and wherein there exists a predefined relationship between values of bits of HARQ-ACK information of the HARQ-ACK codebook and a sequence cyclic shift.
  8. The method of any of claims 5 to 7, wherein, in case the PUCCH resource is in a format 2, 3, or 4, the multiple HARQ-ACK codebooks are encoded and modulated independently, and wherein encoded and modulated information corresponding to the second HARQ-ACK codebook having the high priority is mapped to the PUCCH resource prior to encoded and modulated information corresponding to the first HARQ-ACK codebook having the low priority in the multiple HARQ-ACK codebooks.
  9. A device for wireless communication, comprising at least a processor that is configured to implement a method recited in any one or more of claims 1 to 8.
  10. A computer program product having code stored thereon, the code, when executed by at least one processor, causing the at least one processor to implement a method recited in any one or more of claims 1 to 8.

Description

TECHNICAL FIELD The present application relates to the field of communication technology, for example, to a method and device for determining and receiving resources, an electronic device, and a storage medium. BACKGROUND In research of New Radio (NR) R16, an Ultra-Reliable and Low Latency Communications (URLLC) service is introduced. Compared with an Enhanced Mobile Broadband (eMBB) service, the URLLC service requires high reliability and timeliness, a transmission of which has a very strict delay requirement and must be completed within a required time, for example. However, the eMBB service generally has a less stringent delay requirement and can be transmitted through multiple retransmissions. Similarly, a Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK)/Scheduling Request (SR) corresponding to the URLLC service has the same requirement. However, compared to the URLLC and the HARQ-ACK/SR of the URLLC, the eMBB and its corresponding HARQ-ACK/SR have a low requirement, such as the multiple retransmissions. In some cases, there may be two HARQ-ACK codebooks to be transmitted for a User Equipment (UE), and the two HARQ-ACK codebooks correspond to the URLLC and the eMBB respectively. It can be considered that the HARQ-ACK codebook corresponding to the URLLC has a higher priority, and the HARQ-ACK codebook corresponding to the eMBB has a lower priority. However, when the two HARQ-ACK codebooks are configured to be carried in one Physical Uplink Control Channel (PUCCH), reliability of the HARQ-ACK codebook having the higher priority cannot be ensured. Meanwhile, in some cases, the two HARQ-ACK codebooks of the UE are allocated with PUCCH resources respectively, but two PUCCHs overlap in a time domain, and thus Uplink Control Information (UCI) in the two PUCCHs needs to be transmitted by being multiplexed in one PUCCH (which may be a new PUCCH resource or one of the two PUCCH resources). However, the reliability of the HARQ-ACK codebook having the higher priority cannot be ensured either in this case. Therefore, there is still no good solution to the problem in the related art that the reliability of the HARQ-ACK codebook having the higher priority cannot be ensured after a plurality of HARQ-ACK codebooks are multiplexed, resulting in inconsistent understandings between a base station and a UE side of the PUCCH resource used after the plurality of HARQ-ACK codebooks are multiplexed. Non- patent documents "ZTE: 'UL Control Enhancements for URLLC, R1-190178', 3GPP TSG RAN WG1 #96, 1 March 2019, XP051599462, DOI:20200623135134X" provides UL control related enhancements for URLLC. European patent application publication No. EP 3681072 A1 provides a method, which may include receiving, by a user equipment, at least one downlink assignment indicating at least one multiplexing group indicator. The method may further include generating, by the user equipment, at least one hybrid automatic repeat request acknowledgement codebook in a sub-slot for each received multiplexing group indicator value. The method may further include determining, by the user equipment, whether more than one PUCCH resource associated with more than one multiplexing group indicator overlaps in time. The method may further include transmitting, by the user equipment, the highest priority codebook on the determined PUCCH resource and preventing, by the user equipment, transmission of the lower-priority HARQ-ACKs based on the at least one MGI indication in case an overlap in time has been determined. The method may further include transmitting, by the user equipment, the generated codebook on the determined PUCCH resource. 3GPP Draft R1-1812414 is a related prior art document. SUMMARY The invention is specified by the independent claims. Preferred embodiments are defined in the dependent claims. In the following description, although numerous features may be designated as optional, it is nevertheless acknowledged that all features comprised in the independent claims are not to be read as optional. Embodiments of the present application provide a method and device for determining and receiving resources, an electronic device and a storage medium, to at least solve a problem that the reliability of high-priority HARQ-ACK codebooks cannot be ensured after a plurality of HARQ-ACK codebooks are multiplexed in the related art. According to the present application, a used PUCCH resource after multiplexing of two HARQ-ACK codebooks is always determined by a PRI value in last DCI corresponding to a HARQ-ACK codebook having a higher priority (with high reliability), and the probability of the last DCI being missed is very low. Therefore, the inconsistency of understanding between a base station and UE sides of the PUCCH resource used after the multiplexing of the two HARQ-ACK codebooks is greatly reduced, thus ensuring the reliability of the HARQ-ACK codebook having the higher priority. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings des