US 11,758,497 B2
Timing advance simplification for stationary and low mobility user equipments
Jing Lei, San Diego, CA (US); Wanshi Chen, San Diego, CA (US); Huilin Xu, San Diego, CA (US); and Peter Pui Lok Ang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Dec. 18, 2020, as Appl. No. 17/127,901.
Claims priority of provisional application 62/953,182, filed on Dec. 23, 2019.
Prior Publication US 2021/0195546 A1, Jun. 24, 2021
Int. Cl. H04W 56/00 (2009.01); H04W 74/08 (2009.01); H04W 76/27 (2018.01); H04W 76/11 (2018.01); H04W 80/02 (2009.01); H04W 72/0453 (2023.01); H04W 76/19 (2018.01); H04W 72/23 (2023.01)
CPC H04W 56/0045 (2013.01) [H04W 72/0453 (2013.01); H04W 72/23 (2023.01); H04W 74/0833 (2013.01); H04W 76/11 (2018.02); H04W 76/19 (2018.02); H04W 76/27 (2018.02); H04W 80/02 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method of wireless communication at a user equipment (UE), comprising:
entering an idle state or an inactive state;
transmitting a random access message that triggers timing advance simplification to a serving base station based on a timing advance value corresponding to the serving base station, wherein the timing advance value is applied to the transmission of the random access message; and
receiving a response message based on the timing advance simplification, wherein the response message is in response to the random access message and includes an indication of the timing advance simplification, wherein the indication indicates that the response message excludes a timing advance (TA) media access control (MAC) control element (CE), and wherein the response message is received without the TA MAC CE.