US 12,289,767 B2
RA-RNTI formula for extended random access response windows
Linhai He, San Diego, CA (US); Ruiming Zheng, Beijing (CN); and Jing Lei, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/434,718
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 28, 2020, PCT No. PCT/CN2020/077145
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2020/192357, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. PCT/CN2019/080112 (WO), filed on Mar. 28, 2019.
Prior Publication US 2022/0132584 A1, Apr. 28, 2022
Int. Cl. H04W 72/02 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) 28 Claims
OG exemplary drawing
 
1. A method of wireless communication at a User Equipment (UE), comprising:
transmitting a random access message;
receiving, in a system frame associated with a system frame number, a Random Access Response (RAR) during a RAR window in response to the random access message, the RAR window spanning at least two system frames;
determining a random access radio network temporary identifier (RA-RNTI, where the RA-RNTI is determined based, at least in part, on a random access channel (RACH) occasion associated with the random access message and the system frame number; and
decoding the RAR based on the RA-RNTI.