US 12,015,990 B2
User equipment timing synchronization for CSI-RS based radio resource management
Jie Cui, San Jose, CA (US); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Herbert R. Dawid, Herzogenrath (DE); Hong He, San Jose, CA (US); Yang Tang, San Jose, CA (US); Yihong Qi, Santa Clara, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,480
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Aug. 5, 2020, PCT No. PCT/CN2020/107029
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2022/027293, PCT Pub. Date Feb. 10, 2022.
Prior Publication US 2022/0303921 A1, Sep. 22, 2022
Int. Cl. H04J 3/06 (2006.01); H04L 5/00 (2006.01); H04W 24/10 (2009.01); H04W 56/00 (2009.01)
CPC H04W 56/001 (2013.01) [H04L 5/0051 (2013.01); H04W 24/10 (2013.01); H04W 56/0045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
at a user equipment (UE) being served by a serving cell of a network:
receiving, from the serving cell, a measurement configuration message indicating the UE is to measure channel state information reference signals (CSI-RS) from a target cell of the network, wherein the measurement configuration message does not include Synchronization Signal Block (SSB) information for the target cell but further comprises an indication of whether the target cell transmits SSBs;
determining, based on at least the measurement configuration message, a time and frequency resource on which the CSI-RS of the target cell are to be transmitted; and
measuring the CSI-RS of the target cell.