US 11,888,769 B2
Uplink reference signal-based frequency offset pre-compensation
Wooseok Nam, San Diego, CA (US); Tao Luo, San Diego, CA (US); Jing Sun, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Juan Montojo, San Diego, CA (US); and Junyi Li, Fairless Hills, PA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 19, 2021, as Appl. No. 17/504,750.
Claims priority of provisional application 63/105,095, filed on Oct. 23, 2020.
Prior Publication US 2022/0131664 A1, Apr. 28, 2022
Int. Cl. H04L 5/08 (2006.01); H04L 5/00 (2006.01); H04W 72/0453 (2023.01); H04W 72/23 (2023.01)
CPC H04L 5/0032 (2013.01) [H04L 5/0051 (2013.01); H04W 72/0453 (2013.01); H04W 72/23 (2023.01)] 24 Claims
OG exemplary drawing
 
1. A method for wireless communication at a user equipment (UE), comprising:
receiving a configuration signal indicating a weighting factor to be applied to a first frequency offset, a second frequency offset, or both, wherein the first frequency offset is associated with transmissions between the UE and a first base station and the second frequency offset is associated with transmissions between the UE and a second base station;
determining, based at least in part on a first downlink reference signal transmitted from the first base station using a downlink reference signal frequency, the first frequency offset;
determining, based at least in part on a second downlink reference signal transmitted from the second base station using the downlink reference signal frequency, the second frequency offset;
transmitting, to the first base station and the second base station, at least one uplink reference signal using an uplink reference signal frequency that is based at least in part on the first frequency offset, the second frequency offset, and the weighting factor; and
receiving a downlink data transmission from the first base station or the second base station at a receive frequency that is based at least in part on the uplink reference signal frequency.