US 11,700,095 B2
Channel estimation for two-stage sidelink control using sidelink data channel DMRS
Gabi Sarkis, San Diego, CA (US); Kapil Gulati, Belle Mead, NJ (US); Alexandros Manolakos, Escondido, CA (US); Shuanshuan Wu, San Diego, CA (US); Sudhir Kumar Baghel, Hillsborough, NJ (US); and Tien Viet Nguyen, Bridgewater, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 2, 2020, as Appl. No. 17/62,020.
Claims priority of application No. 20190100437 (GR), filed on Oct. 4, 2019.
Prior Publication US 2021/0105119 A1, Apr. 8, 2021
Int. Cl. H04L 5/00 (2006.01); H04L 5/02 (2006.01); H04W 72/1263 (2023.01); H04W 72/20 (2023.01)
CPC H04L 5/0048 (2013.01) [H04L 5/0023 (2013.01); H04L 5/023 (2013.01); H04W 72/1263 (2013.01); H04W 72/20 (2023.01)] 44 Claims
OG exemplary drawing
 
1. A method for wireless communications by a user equipment (UE), comprising:
transmitting one or more demodulation reference signals (DMRSs) for a sidelink data channel transmission via a set of one or more antenna ports; and
transmitting a second stage of a two-stage sidelink control information (SCI) transmission using antenna ports from the set of one or more antenna ports, wherein:
the sidelink data channel transmission comprises a first physical sidelink shared channel (PSSCH) transmission; and
the two-stage SCI comprises:
a first SCI transmitted on a physical sidelink control channel (PSCCH) and carrying resource availability information; and
a second SCI transmitted on the PSSCH and carrying information to decode a data transmission.