US 12,081,488 B2
Feedback resource determination from sidelink shared channel
Umer Salim, Guangdong (CN); Bruno Jechoux, Guangdong (CN); and Virgile Garcia, Guangdong (CN)
Assigned to JRD COMMUNICATION (SHENZHEN) LTD., Guangdong (CN)
Appl. No. 17/605,964
Filed by JRD COMMUNICATION (SHENZHEN) LTD., Guangdong (CN)
PCT Filed Sep. 28, 2020, PCT No. PCT/CN2020/118268
§ 371(c)(1), (2) Date Oct. 22, 2021,
PCT Pub. No. WO2021/063297, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/910,027, filed on Oct. 3, 2019.
Prior Publication US 2022/0224491 A1, Jul. 14, 2022
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0055 (2013.01) 2 Claims
OG exemplary drawing
 
1. A method of determining physical sidelink shared channel (PSSCH) feedback resources performed at a UE, wherein the PSSCH feedback (PSFCH) resource has a periodicity N defined as a number of slots, the method comprising:
counting a number of sub-channels, C, of PSSCH in the period N, wherein each sub-channel, c, is associated with a PSFCH resource;
counting a number of PSFCH resources, R, in the period N;
indexing the sub-channels, c, based on time; and
after indexing the sub-channels, c, based on time, indexing the sub-channels, c, based on frequency;
conveying ACK and NACK feedback of a PSSCH shared channel transmission using two cyclically shifted sequences per transmission, wherein the two cyclically shifted sequences include a first phase shift and a second phase shift, and the second phase shift is 180 degrees from the first phase shift.