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Method and device for determining priority of HARQ feedback in NR V2X

專(zhuān)利號(hào)
US11997047B2
公開(kāi)日期
2024-05-28
申請(qǐng)人
LG ELECTRONICS INC.（KR Seoul）
發(fā)明人
Daesung Hwang; Seungmin Lee; Hanbyul Seo
IPC分類(lèi)
H04L1/1812; H04L5/00; H04W72/21; H04W72/23
技術(shù)領(lǐng)域
ue,sl,harq,may,resource,psfch,pucch,or,priority,be
地域： Seoul

摘要

Provided are a method for performing wireless communication by a first device, and a device for supporting the method. The method may comprise: receiving, from a base station, information related to a physical uplink control channel (PUCCH) resource for reporting hybrid automatic repeat request (HARQ) feedback information and information related to a configured grant (CG) resource for sidelink (SL); generating ACK information, based on no physical sidelink control channel (PSCCH) transmission by the first device on the CG resource in a single period; and determining a priority value of the ACK information, wherein the priority value of the ACK information is same as a largest priority value among at least one possible priority value related to the CG resource.

說(shuō)明書(shū)

Based on an embodiment of the present disclosure, if the UE transmits the SL HARQ report to the base station through the PUSCH, the PUSCH may have a priority value of the SL HARQ report and a priority value of the UL transmission. Specifically, for example, the priority of the UL transmission corresponds to URLLC if a “priority value” is 1 through an RRC configuration and/or a DCI indication value corresponding to the UL transmission. In addition, the priority of the UL transmission corresponds to enhanced mobile broadband (eMBB) if a “priority value” is 0 through an RRC configuration and/or a DCI indication value corresponding to the UL transmission. If there is no indication value for the “priority value” on a DCI, the UE may assume/determine the corresponding value as 0. The priority setting between the PUSCH and the SL transmission may be performed by the UE in the following manner.

For example, the UE may ignore a priority of the SL HARQ report on the PUSCH, and may set a priority based on a general priority setting method between the UL transmission and the SL transmission.

In this case, for example, if a priority of the UL transmission is high, the UE may set a priority of the PUSCH to be high while the PUSCH includes the SL HARQ report. That is, in the case of the dropping rule, the UE may transmit the PUSCH, and in the case of power control, the UE may readjust (e.g., reduce) power of the SL transmission based on the maximum power of the UE.

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