US 12,273,300 B2
Cross carrier random access configuration
Yiqing Cao, Beijing (CN); Bin Han, Beijing (CN); and Jing Lei, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/762,514
Filed by Qualcomm Incorporated, San Diego, CA (US)
PCT Filed Sep. 24, 2020, PCT No. PCT/CN2020/117389
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/057841, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. PCT/CN2019/107452 (WO), filed on Sep. 24, 2019.
Prior Publication US 2022/0360419 A1, Nov. 10, 2022
Int. Cl. H04L 5/00 (2006.01); H04W 74/0833 (2024.01)
CPC H04L 5/0094 (2013.01) [H04L 5/001 (2013.01); H04W 74/0833 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for wireless communications at a user equipment (UE), comprising:
identifying a carrier aggregation configuration for communicating with a plurality of component carriers, the carrier aggregation configuration comprising a time division duplexing band and at least one frequency division duplexing band;
receiving a random access occasion configuration scheduling a plurality of random access occasions for the plurality of component carriers, the scheduled plurality of random access occasions comprising at least one random access occasion in the at least one frequency division duplexing band based at least in part on a synchronization signal/physical broadcast channel block of the time division duplexing band; and
transmitting a first random access message for a component carrier during a random access occasion of the plurality of random access occasions based at least in part on the random access occasion configuration.