US 11,729,759 B2
Group reference signal triggering for contention-based systems
Jing Sun, San Diego, CA (US); Kapil Bhattad, Bangalore (IN); Xiaoxia Zhang, San Diego, CA (US); Tanumay Datta, Bangalore (IN); and Ananta Narayanan Thyagarajan, Bangalore (IN)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Mar. 10, 2020, as Appl. No. 16/814,759.
Claims priority of application No. 201941012461 (IN), filed on Mar. 29, 2019.
Prior Publication US 2020/0314871 A1, Oct. 1, 2020
Int. Cl. H04W 72/121 (2023.01); H04W 24/10 (2009.01); H04W 76/27 (2018.01); H04W 74/08 (2009.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04W 72/121 (2013.01) [H04L 5/0048 (2013.01); H04W 24/10 (2013.01); H04W 72/23 (2023.01); H04W 74/0808 (2013.01); H04W 76/27 (2018.02)] 30 Claims
OG exemplary drawing
 
1. An apparatus for wireless communications at a user equipment (UE), comprising:
a first interface configured to obtain a control signal indicating a slot offset for reference signal transmission by a plurality of UEs comprising the UE;
the first interface configured to:
monitor for a group common control channel configured to trigger transmission of respective reference signals by the plurality of UEs; and
monitor a resource block associated with the group common control channel to determine a respective timing adjustment for transmission of one or more of the respective reference signals, wherein the resource block corresponds to a group of UEs of the plurality of UEs comprising the UE;
a processor configured to determine a set of time-frequency resources for the transmission of one or more of the respective reference signals based at least in part on the respective timing adjustment and the slot offset; and
a second interface configured to output the one or more of the respective reference signals for transmission via the set of time-frequency resources.