US 12,170,565 B2
Systems and methods for uplink codebook based transmission
Yushu Zhang, Beijing (CN); Chunhai Yao, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Hong He, San Jose, CA (US); Huaning Niu, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Wei Zeng, Saratoga, CA (US); and Weidong Yang, San Diego, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by APPLE INC., Cupertino, CA (US)
Filed on Sep. 26, 2023, as Appl. No. 18/474,857.
Application 18/474,857 is a continuation of application No. 17/593,368, previously published as PCT/CN2021/103965, filed on Jul. 1, 2021.
Prior Publication US 2024/0014878 A1, Jan. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 4/00 (2018.01); H04B 7/0404 (2017.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04B 17/318 (2015.01); H04L 5/00 (2006.01); H04W 24/08 (2009.01)
CPC H04B 7/06956 (2023.05) [H04B 7/0404 (2013.01); H04B 7/0456 (2013.01); H04B 7/0469 (2013.01); H04B 17/328 (2023.05); H04L 5/0048 (2013.01); H04W 24/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for a base station, the method comprising:
receiving, from a user equipment (UE), an indication of a UE capability based on an antenna structure of the UE comprising multiple antenna panels, wherein the indication of the UE capability indicates whether the UE supports coherent transmission, non-coherent transmission, or partial coherent transmission for each of the multiple antenna panels and across each of the multiple antenna panels;
measuring sounding reference signal (SRS) transmissions corresponding to the multiple antenna panels of the UE, wherein measuring the SRS transmissions comprises measuring a reference signal received power (RSRP) of the SRS transmissions from each of the multiple antenna panels to determine a pathloss for power control;
based on the UE capability and the SRS transmissions, determining one or more uplink (UL) precoders and a corresponding UL rank, wherein the one or more UL precoders includes a polarization co-phasing factor, an antenna panel co-phasing factor, and a combining weight for antennas for a same polarization; and
transmitting an indication of the one or more UL precoders and the UL rank to the UE.