US 12,445,963 B2
UE idle and inactive mode enhancement with sidelink
Huilin Xu, San Diego, CA (US); Fei Huang, San Diego, CA (US); and Duo Zhang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jan. 15, 2021, as Appl. No. 17/149,982.
Prior Publication US 2022/0232474 A1, Jul. 21, 2022
Int. Cl. H04W 52/02 (2009.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04W 4/02 (2018.01); H04W 52/24 (2009.01); H04W 52/52 (2009.01); H04W 72/20 (2023.01); H04W 76/27 (2018.01); H04W 76/28 (2018.01); H04W 92/18 (2009.01)
CPC H04W 52/0229 (2013.01) [H04B 7/0626 (2013.01); H04L 5/005 (2013.01); H04W 4/023 (2013.01); H04W 52/242 (2013.01); H04W 52/52 (2013.01); H04W 72/20 (2023.01); H04W 76/27 (2018.02); H04W 76/28 (2018.02); H04W 92/18 (2013.01)] 19 Claims
OG exemplary drawing
 
15. An apparatus for wireless communication at a first user equipment (UE), comprising:
one or more processors;
one or more memories coupled with the one or more processors; and
instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:
transmit, to a second UE, a reference signal configuration request message, wherein the first UE is in a radio resource control (RRC) idle mode or a RRC inactive mode, and the second UE is in a RRC connected mode;
receive, from the second UE via a sidelink channel and in response to the reference signal configuration request message, a sidelink transmission that includes a reference signal configuration for receiving one or more reference signals from a network device, wherein the reference signal configuration indicates one or more downlink resources for receiving the one or more reference signals, and wherein the one or more reference signals include one among a channel state information reference signal (CSI-RS), a positioning reference signal (PRS), and a tracking reference signal (TRS);
monitor, at the first UE, the one or more downlink resources for the one or more reference signals from the network device based at least in part on the reference signal configuration received from the second UE; and
receive, at the first UE, at least one reference signal from the network device via the one or more downlink resources based at least in part on the monitoring.