US 12,224,830 B2
Channel state information feedback in wireless communications
Hong He, San Jose, CA (US); Chunhai Yao, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Jie Cui, San Jose, CA (US); Wei Zeng, Saratoga, CA (US); Yang Tang, San Jose, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,489
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Apr. 8, 2020, PCT No. PCT/CN2020/083766
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2021/203298, PCT Pub. Date Oct. 14, 2021.
Prior Publication US 2022/0311491 A1, Sep. 29, 2022
Int. Cl. H04L 5/00 (2006.01); H04B 7/06 (2006.01); H04W 74/00 (2009.01); H04W 74/0808 (2024.01)
CPC H04B 7/0626 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0053 (2013.01); H04W 74/006 (2013.01); H04W 74/0808 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A non-transitory computer readable storage medium comprising a set of instructions, wherein the set of instructions when executed by a processor of a user equipment (UE) connected to a 5G new radio (NR) network on a frequency band in an unlicensed spectrum cause the processor to perform operations comprising:
receiving a downlink channel information (DCI) format 2_0 from a g-NodeB (gNB) connected to the 5G NR network, wherein the DCI format 2_0 includes channel occupancy time (COT) duration and a gap threshold value;
determining whether a nonzero power channel state information reference signal (NZP-CSI-RS) resource is valid,
wherein the determining whether the NZP-CSI-RS resource is valid includes at least determining whether the NZP-CSI-RS resource is within the COT duration.