US 11,991,751 B2
Identification of user equipment in a random access procedure
Yiqing Cao, Beijing (CN); Jing Lei, San Diego, CA (US); and Wanshi Chen, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/310,485
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 26, 2020, PCT No. PCT/CN2020/076712
§ 371(c)(1), (2) Date Aug. 5, 2021,
PCT Pub. No. WO2020/177586, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. PCT/CN2019/076950 (WO), filed on Mar. 5, 2019.
Prior Publication US 2022/0124813 A1, Apr. 21, 2022
Int. Cl. H04L 12/50 (2006.01); H04L 5/00 (2006.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) [H04L 5/0044 (2013.01); H04L 5/0048 (2013.01)] 56 Claims
OG exemplary drawing
 
1. A method of wireless communication by a user equipment (UE), the method comprising:
generating a preamble of a first message associated with a random access channel (RACH) procedure;
determining an identifier (ID) associated with the UE based on at least one of an ID associated with the preamble or a port index associated with a demodulation reference signal (DMRS);
generating a payload of the first message that indicates the ID associated with the UE;
transmitting the first message to a base station to initiate the RACH procedure; and
receiving, from the base station based on the first message, a second message associated with completion of the RACH procedure and including information confirming the ID associated with the UE.