US 12,068,981 B2
Operation modes for High Speed Train enhancements
Haitong Sun, Cupertino, CA (US); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Cupertino, CA (US); Hong He, Cupertino, CA (US); Jie Cui, Cupertino, CA (US); Sigen Ye, San Diego, CA (US); Wei Zeng, Cupertino, CA (US); Weidong Yang, San Diego, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/593,364
Filed by APPLE INC., Cupertino, CA (US)
PCT Filed Aug. 5, 2021, PCT No. PCT/CN2021/111032
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2023/010468, PCT Pub. Date Feb. 9, 2023.
Prior Publication US 2024/0014957 A1, Jan. 11, 2024
Int. Cl. H04L 12/28 (2006.01); H04L 5/00 (2006.01)
CPC H04L 5/0035 (2013.01) [H04L 5/0053 (2013.01); H04L 5/0094 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for supporting high speed train (HST) schemes at a user equipment (UE), comprising:
in response to being within range of a transmission and reception point (TRP) of a plurality of TRPs associated with an HST, decoding a communication received from a network, the communication including an HST scheme configuration, the HST scheme configuration including an HST-single frequency network (HST-SFN) without network pre-compensation scheme and an HST-SFN with network pre-compensation scheme;
identifying at least one of a channel restriction and an environmental restriction associated with the HST scheme configuration; and
based on the at least one of the channel restriction and the environmental restriction, applying the HST scheme configuration, wherein applying the HST scheme configuration includes the UE being limited to operating in either the HST-SFN without network pre-compensation scheme or the HST-SFN with network pre-compensation scheme with respect to the environmental restriction.