US 11,943,725 B2
Techniques for timing advance group per subset of synchronization signal blocks in a wireless communication system
Qian Zhang, Basking Ridge, NJ (US); Yan Zhou, San Diego, CA (US); and Tao Luo, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Dec. 15, 2020, as Appl. No. 17/122,780.
Claims priority of provisional application 62/965,699, filed on Jan. 24, 2020.
Prior Publication US 2021/0235397 A1, Jul. 29, 2021
Int. Cl. H04W 56/00 (2009.01); H04W 72/044 (2023.01)
CPC H04W 56/001 (2013.01) [H04W 72/046 (2013.01)] 22 Claims
OG exemplary drawing
 
9. A method of wireless communication at a serving cell having a first remote radio header (RRH) and a second RRH, comprising:
transmitting, on a downlink communication channel, a first timing advance group (TAG) and associated timing advance (TA) offset for the second RRH to a user equipment (UE);
transmitting a second TAG and associated TA offset for the second RRH to the UE following transmission of the first TAG, wherein the first RRH is associated with a first subset of reference signals (RSs) of a set of RSs and the second RRH is associated with a second subset of RSs of a set of RSs different from the first subset of RSs, and wherein the second subset of RSs is associated with the first TAG and the first subset of RSs is associated with the second TAG;
detecting a switch of the UE from the first RRH to the second RRH; and
receiving, on an uplink communication channel, data from the second RRH.