US 12,034,663 B2
AP-SRS triggering offset enhancement for further enhanced MIMO
Haitong Sun, Cupertino, CA (US); Dawei Zhang, Saratoga, CA (US); Wei Zeng, Saratoga, CA (US); Yushu Zhang, Beijing (CN); Hong He, San Jose, CA (US); Chunxuan Ye, San Diego, CA (US); Huaning Niu, San Jose, CA (US); Weidong Yang, San Diego, CA (US); Oghenekome Oteri, San Diego, CA (US); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); and Chunhai Yao, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/441,152
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Jan. 15, 2021, PCT No. PCT/CN2021/072030
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2022/151315, PCT Pub. Date Jul. 21, 2022.
Prior Publication US 2023/0361952 A1, Nov. 9, 2023
Int. Cl. H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04L 5/0048 (2013.01) [H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
at least one antenna;
at least one radio coupled to the at least one antenna; and
a processor coupled to the at least one radio;
wherein the UE is configured to:
receive an offset information associated with an Aperiodic Sounding Reference Signal (AP-SRS) transmission of the UE;
determine a slot offset associated with the AP-SRS transmission, at least based on the offset information;
determine a specific slot for the AP-SRS transmission, based on the determined slot offset by:
determining a sequence of available slots counting from a reference slot; and
determining the specific slot as a (t+1)-th available slot in the sequence of available slots, t representing the slot offset; and
perform the AP-SRS transmission in the specific slot,
wherein a width of the reference slot is based on at least one of a Subcarrier Spacing (SCS) of a Downlink Control Information (DCI) or a SCS of the AP-SRS.