US 12,328,281 B2
UE-to-UE positioning
Yiqing Cao, Beijing (CN); Jing Lei, San Diego, CA (US); Wanshi Chen, San Diego, CA (US); Alexandros Manolakos, Escondido, CA (US); and Sony Akkarakaran, Poway, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 18/000,727
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Jul. 31, 2020, PCT No. PCT/CN2020/106187
§ 371(c)(1), (2) Date Dec. 5, 2022,
PCT Pub. No. WO2022/021320, PCT Pub. Date Feb. 3, 2022.
Prior Publication US 2023/0224123 A1, Jul. 13, 2023
Int. Cl. H04L 12/26 (2006.01); G01S 5/00 (2006.01); H04L 5/00 (2006.01); H04L 5/16 (2006.01)
CPC H04L 5/0051 (2013.01) [G01S 5/0072 (2013.01); H04L 5/16 (2013.01)] 50 Claims
OG exemplary drawing
 
1. A first user equipment (UE) comprising:
a transceiver;
a memory; and
a processor, communicatively coupled to the transceiver and the memory, configured to:
at least one of:
(1) initiate a first UE-to-UE positioning function in response to receiving a first UE-to-UE positioning trigger from a second UE via the transceiver;
transmit a first UE-to-UE location reference signal at a first transmission frequency in response to receiving the first UE-to-UE positioning trigger; and
at least one of:
transmit the first UE-to-UE location reference signal at a second transmission frequency in response to an absence of receiving the first UE-to-UE positioning trigger, the second transmission frequency being lower than the first transmission frequency; or
abstain from transmitting the first UE-to-UE location reference signal at the second transmission frequency in response to the absence of receiving the first UE-to-UE positioning trigger; or
(2) communicate with the second UE via the transceiver to determine a characteristic of a second UE-to-UE location reference signal to be exchanged transferred between the first UE and the second UE, wherein the characteristic of the second UE-to-UE location reference signal comprises a timing parameter of the second UE-to-UE location reference signal to accommodate half-duplex communication by at least one of the first UE or the second UE, and wherein the timing parameter includes at least one quantity of one or more symbols in a slot to allow transition between half-duplex transmission and half-duplex reception by the at least one of the first UE and the second UE; and
transfer the second UE-to-UE location reference signal between the first UE and the second UE via the transceiver.