US 12,015,573 B2
Dynamic configuration of aperiodic sounding reference signal offsets in cellular communications systems
Haitong Sun, Irvine, CA (US); Yushu Zhang, Beijing (CN); Huaning Niu, San Jose, CA (US); Hong He, Cupertino, CA (US); Wei Zeng, San Diego, CA (US); Chunxuan Ye, San Diego, CA (US); Oghenekome Oteri, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); Dawei Zhang, Saratoga, CA (US); Jie Cui, San Jose, CA (US); and Yang Tang, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/439,059
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 12, 2020, PCT No. PCT/CN2020/120264
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2022/077138, PCT Pub. Date Apr. 21, 2022.
Prior Publication US 2022/0303088 A1, Sep. 22, 2022
Int. Cl. H04L 5/00 (2006.01); H04L 41/0803 (2022.01); H04W 72/23 (2023.01)
CPC H04L 5/0048 (2013.01) [H04L 41/0803 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
at least one processor configured to cause a cellular base station (BS) to:
determine an aperiodic sounding reference signal (SRS) triggering offset for a user equipment (UE), wherein the aperiodic SRS triggering offset is based on a minimum timing offset received from the UE and specifies a timing offset between an aperiodic SRS trigger received by the UE in a downlink control information (DCI) message and transmission of the SRS by the UE in response to the aperiodic SRS trigger;
transmit an initial set of aperiodic SRS triggering offset values for an SRS resource set to the UE via radio resource control (RRC) signaling; and
transmit the DCI message to the UE specifying one offset value from the initial set of aperiodic SRS triggering offset values.