US 12,075,492 B2
System and method for prioritization of random access procedures
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. 17/310,448
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Feb. 13, 2020, PCT No. PCT/CN2020/075070
§ 371(c)(1), (2) Date Aug. 3, 2021,
PCT Pub. No. WO2020/164540, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. PCT/CN2019/075028 (WO), filed on Feb. 14, 2019.
Prior Publication US 2022/0167399 A1, May 26, 2022
Int. Cl. H04W 74/0833 (2024.01); H04B 7/06 (2006.01); H04W 36/08 (2009.01); H04W 52/36 (2009.01); H04W 76/19 (2018.01)
CPC H04W 74/085 (2013.01) [H04B 7/0695 (2013.01); H04W 36/08 (2013.01); H04W 52/36 (2013.01); H04W 76/19 (2018.02)] 56 Claims
OG exemplary drawing
 
1. A method of wireless communication by a user equipment (UE), the method comprising:
generating a payload of a first preamble message associated with a first random access channel (RACH) procedure, wherein the payload indicates a first priority of the first RACH procedure that is relatively higher than a second priority of a second RACH procedure;
sending the first preamble message including a RACH preamble and the payload to a base station, wherein the first preamble message indicates an identifier (ID) of the UE;
monitoring for a first response message in a first random access response (RAR) window and based on the first preamble message, wherein the first RAR window has a shorter duration than a second RAR window associated with the second RACH procedure;
receiving a second response message associated with the second RACH procedure in the second RAR window when the first response message is undetected in the first RAR window and based on the first preamble message, wherein the ID of the UE is unindicated in the second response message; and
sending a radio resource control (RRC) connection request to the base station based on the second response message, wherein the RRC connection request includes information in a physical uplink shared channel (PUSCH); and
receiving a contention resolution message from the base station based on the RRC connection request.