US 12,309,613 B2
Uplink beam training on neighbor cell
Jie Cui, Cupertino, CA (US); Dawei Zhang, Cupertino, CA (US); Haitong Sun, Cupertino, CA (US); Hong He, Cupertino, CA (US); Huaning Niu, Cupertino, CA (US); Manasa Raghavan, Cupertino, CA (US); Qiming Li, Beijing (CN); Xiang Chen, Cupertino, CA (US); Yang Tang, Cupertino, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by APPLE INC., Cupertino, CA (US)
Filed on Aug. 19, 2022, as Appl. No. 17/820,899.
Claims priority of provisional application 63/261,587, filed on Sep. 24, 2021.
Prior Publication US 2023/0099761 A1, Mar. 30, 2023
Int. Cl. H04W 16/28 (2009.01); H04L 5/00 (2006.01); H04W 24/10 (2009.01); H04W 36/08 (2009.01)
CPC H04W 16/28 (2013.01) [H04L 5/0051 (2013.01); H04W 24/10 (2013.01); H04W 36/085 (2023.05)] 20 Claims
OG exemplary drawing
 
1. A method for a user equipment (UE), the method comprising:
receiving, from an active serving cell, a configuration to perform uplink (UL) reference signal (RS) based transmit (Tx) beam training with a target non-serving cell;
transmitting an UL RS with repetition using beam sweeping according to the configuration;
receiving, from the active serving cell, Tx beam information from the UL RS based Tx beam training based on measurements by the target non-serving cell;
receiving, from the active serving cell, an indication to switch to a target transmission configuration indication (TCI) and change to the target non-serving cell; and
using a receive (Rx) beam selected based on the measurements by the target non-serving cell for downlink (DL) reception from the target non-serving cell.