Method and device for determining priority of HARQ feedback in NR V2X
摘要
說明書
Alt 1: The base station may indicate a transmission timing (e.g., slot) of UCI for SL transmission to the UE. Specifically, for example, the indication information regarding the UCI transmission timing may be included in a PDCCH indicating resources for the SL transmission. For example, candidate values for the transmission timing may be predefined (e.g., 1, 2, 3, . . . , 8 slots). Alternatively, for example, the base station may configure the candidate values for the UE through higher layer signaling. For example, if there is a single candidate value, the UCI transmission timing may be determined according to the value. For example, the UE needs to determine the UCI transmission timing based on the UCI transmission time indication value. To this end, a reference point for applying the UCI transmission timing needs to be defined again. More specific examples of a method of defining a reference point and applying a transmission timing indication value are given below.
(1) Alt 1-1: The indication value for the UCI transmission timing may be an offset value between a slot in which a PDCCH is transmitted and a slot in which UCI is to be transmitted. In this method, the transmission timing of a PSFCH from a PSCCH/PSSCH may be limited according to the indication value for the UCI transmission timing indicated by the base station. However, the base station may still specify a correct UCI reporting position regardless of what happens on the SL. If different numerologies are applied to the PDCCH and a UCI transmission channel, the offset value may be based on the numerology of the UCI transmission channel, and the zero value of the offset (i.e., the reference point) may be the earliest (or last) of slots based on the numerology of the UCI transmission channel overlapped with PDCCH transmission slots.
