US 12,451,942 B2
Channel state information report for multi-TRP operation
Yushu Zhang, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Wei Zeng, Saratoga, CA (US); and Weidong Yang, San Diego, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,449
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed May 14, 2020, PCT No. PCT/CN2020/090360
§ 371(c)(1), (2) Date Sep. 19, 2021,
PCT Pub. No. WO2021/226964, PCT Pub. Date Nov. 18, 2021.
Prior Publication US 2022/0302976 A1, Sep. 22, 2022
Int. Cl. H04B 7/06 (2006.01); H04B 17/345 (2015.01)
CPC H04B 7/0626 (2013.01) [H04B 7/0632 (2013.01); H04B 17/345 (2015.01); H04B 7/0639 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
at a user equipment (UE) in a multiple transmission and reception point (multi-TRP) configuration having simultaneous connections with a first next generation node B (gNB) and at least one second gNB over a same carrier, wherein transmission from the first gNB and the at least one second gNB are non-coherent:
performing channel state information (CSI) measurements for a first channel measurement resource (CMR) for the first gNB;
performing CSI measurements for a second CMR for the at least one second gNB;
determining a configuration for a CSI report for the CSI measurements including a channel quality indicator (CQI) measurement for each of the first and the second CMR; and
generating, for transmission, the CSI report to at least one of the first gNB and the at least one second gNB, wherein when the CSI report includes two sets of a rank indicator (RI), each of the two sets of RI are reported in a joint RI index corresponding to one of four rank combinations.