US 11,895,637 B2
Beam management in multi-TRP operation
Haitong Sun, Cupertino, CA (US); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Saratoga, CA (US); Hong He, San Jose, CA (US); Huaning Niu, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); Wei Zeng, Saratoga, CA (US); Weidong Yang, San Diego, CA (US); Yeong-Sun Hwang, Germering (DE); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,588
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 2, 2020, PCT No. PCT/CN2020/119777
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2022/067843, PCT Pub. Date Apr. 7, 2022.
Prior Publication US 2022/0303968 A1, Sep. 22, 2022
Int. Cl. H04W 72/04 (2023.01); H04W 72/044 (2023.01); H04B 7/0408 (2017.01); H04L 5/00 (2006.01); H04W 16/28 (2009.01)
CPC H04W 72/046 (2013.01) [H04B 7/0408 (2013.01); H04L 5/0035 (2013.01); H04L 5/0048 (2013.01); H04W 16/28 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A baseband processor configured to:
transmit a first group of multiple reference signals via a first transmission reception point (TRP) to a user equipment (UE);
transmit a second group of multiple reference signals via a second different TRP to the UE, wherein the first group of multiple reference signals include radio link monitoring reference signals configured with a CORESETPoolIndex or a physical cell ID (PCI) to be used by the UE for beam failure detection of the first TRP, and the second group of multiple reference signals include radio link monitoring reference signals configured with a different CORESETPoolIndex or a different physical cell ID (PCI) to be used by the UE for beam failure detection of the second TRP;
receive an indication that the UE has selected a first beam associated with one of the multiple reference signals of the first group and a second beam associated with one of the multiple reference signals of the second group; and
transmit downlink data to the UE using the first beam and the second beam.