US 12,294,429 B2
Antenna ports determination of UL TX switching
Yiqing Cao, Beijing (CN); Peter Gaal, San Diego, CA (US); Alberto Rico Alvarino, San Diego, CA (US); Enoch Shiao-Kuang Lu, San Diego, CA (US); Wanshi Chen, San Diego, CA (US); Kazuki Takeda, Minato-ku (JP); Yan Li, Beijing (CN); Zhimin Du, Beijing (CN); and Bin Han, Beijing (CN)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 18/268,909
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Mar. 3, 2021, PCT No. PCT/CN2021/078842
§ 371(c)(1), (2) Date Jun. 21, 2023,
PCT Pub. No. WO2022/183397, PCT Pub. Date Sep. 9, 2022.
Prior Publication US 2024/0297693 A1, Sep. 5, 2024
Int. Cl. H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0608 (2013.01) [H04L 5/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of wireless communication at a user equipment (UE), comprising:
determining a number of antenna ports associated with a frequency band that includes one or more component carriers (CCs), the number of antenna ports based on a plurality of uplink (UL) transmit (Tx) chains for at least one of the one or more CCs or the frequency band; and
switching from a first UL Tx chain of the plurality of UL Tx chains to a second UL Tx chain of the plurality of UL Tx chains, at least one of the first UL Tx chain or the second UL Tx chain associated with the at least one of the one or more CCs or the frequency band.