US 12,150,083 B1
Methods and apparatus for power-efficient positioning in wireless communication systems
Jaya Rao, Montreal (CA); Faris Alfarhan, Montreal (CA); Fumihiro Hasegawa, Westmount (CA); Moon Il Lee, Melville, NY (US); and Tuong Hoang, Montreal (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Jul. 11, 2024, as Appl. No. 18/770,033.
Application 18/770,033 is a continuation of application No. 18/031,378, previously published as PCT/US2021/055060, filed on Oct. 14, 2021.
Claims priority of provisional application 63/227,496, filed on Jul. 30, 2021.
Claims priority of provisional application 63/167,985, filed on Mar. 30, 2021.
Claims priority of provisional application 63/134,331, filed on Jan. 6, 2021.
Claims priority of provisional application 63/091,399, filed on Oct. 14, 2020.
Int. Cl. H04W 64/00 (2009.01)
CPC H04W 64/00 (2013.01) 14 Claims
OG exemplary drawing
 
1. A wireless transmit/receive unit (WTRU) comprising:
a processor configured to:
receive a configuration of sounding reference signals (SRS) for positioning, wherein the configuration comprises information indicating one or more SRS resources, a validity area information associated with the configuration, and a validity time information associated with the configuration, wherein the validity area information associated with the configuration comprises one or more cells indicated by a cell ID;
transition to an INACTIVE mode;
initialize a validity timer in accordance with the validity time information indicated by the configuration;
send a first SRS transmission using the one or more configured SRS resources during operation in the INACTIVE mode;
determine that the WTRU has moved to a different cell;
on condition that the different cell is one of the one or more cells comprised in the validity area information associated with the configuration, and on condition that the validity timer is running, transmit a second SRS transmission using the one or more configured SRS resources; and
on condition that the different cell is not one of the one or more cells comprised in the validity area information associated with the configuration, initiate a connection resume procedure, wherein the processor is configured to transmit a resume request message during the connection resume procedure, and wherein the resume request message comprises a cause value indicating an SRS configuration request.