US 12,224,829 B2
CSI report enhancement for high-speed train scenarios
Haitong Sun, Cupertino, CA (US); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Cupertino, CA (US); Hong He, Cupertino, CA (US); Oghenekome Oteri, 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. 17/593,360
Filed by APPLE INC., Cupertino, CA (US)
PCT Filed Aug. 5, 2021, PCT No. PCT/CN2021/110965
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2023/010434, PCT Pub. Date Feb. 9, 2023.
Prior Publication US 2024/0039597 A1, Feb. 1, 2024
Int. Cl. H04B 7/06 (2006.01); H04W 84/00 (2009.01)
CPC H04B 7/0626 (2013.01) [H04B 7/06968 (2023.05); H04W 84/005 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for configuring channel state information (CSI) reporting at a user equipment (UE), the method comprising:
in response to being within range of a first transmission and reception point (TRP) of a plurality of TRPs associated with a high speed train (HST), decoding a CSI reporting configuration communication received from a network, the CSI reporting configuration indicating that CSI reporting is to be performed in an HST scenario and being configured for the HST scenario;
performing measurements based on the decoded CSI reporting configuration received from the network; and
encoding a CSI report communication associated with the HST scenario based on the measurements for transmission to the network,
wherein two sets of CSI-reference signals (CSI-RSs) are associated with a channel measurement resource (CMR), a first set of the two sets of CSI-RSs corresponding to the first TRP and a second set of the two sets of CSI-RSs corresponding to a second TRP, wherein when:
the first set and the second set are configured for HST-single frequency network (HST-SFN) without network pre-compensation mode, the first set is configured to be quasi-co-located to a first set of tracking resource signals (TRSs) with quasi-co-location-Type A (QCL-Type A) and the second set of CSI-RSs is configured to be quasi-co-located to a second set of TRSs with QCL-Type A, and
when the first set and the second set are configured for HST-SFN with network pre-compensation mode, the first set is configured to be quasi-co-located to the first set of TRSs with QCL-Type A and the second set is configured to be quasi-co-located to the second set of TRSs with a special QCL type including at least an average delay and a delay spread.