US 12,010,721 B2
Initial signal detection method and apparatus
Ji Wu, Shanghai (CN); Jiayin Zhang, Shanghai (CN); and Qiong Jia, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Aug. 16, 2021, as Appl. No. 17/403,264.
Application 17/403,264 is a continuation of application No. PCT/CN2020/075571, filed on Feb. 17, 2020.
Claims priority of application No. 201910117894.5 (CN), filed on Feb. 15, 2019.
Prior Publication US 2021/0378009 A1, Dec. 2, 2021
Int. Cl. H04W 74/08 (2009.01); H04W 16/14 (2009.01); H04W 74/0808 (2024.01)
CPC H04W 74/0808 (2013.01) [H04W 16/14 (2013.01)] 19 Claims
OG exemplary drawing
 
14. A communication apparatus, comprising:
a non-transitory memory configured to store non-transitory instructions; and
one or more processors coupled with the non-transitory memory, wherein the one or more processors are configured to execute the non-transitory instructions to cause the apparatus to:
perform detection on one or more sub-channels on an unlicensed spectrum; and
determine, based on a combination of a group common-demodulation reference signal GC-DMRS) and a GC-physical downlink control channel (GC-PDCCH) that is detected for a first time, that downlink transmission has started or that a channel occupancy time (COT) has started.