US 12,267,870 B2
Method and system for performing random access channel procedure for unlicensed operation
Abhishek Kumar Singh, Bangalore (IN); Anil Agiwal, Bangalore (IN); Pravjyot Singh Deogun, Bangalore (IN); and Anshuman Nigam, Bangalore (IN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/267,013
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Aug. 8, 2019, PCT No. PCT/KR2019/009967
§ 371(c)(1), (2) Date Feb. 8, 2021,
PCT Pub. No. WO2020/032618, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 201841029871 (IN), filed on Aug. 8, 2018; and application No. 201841029871 (IN), filed on Aug. 6, 2019.
Prior Publication US 2021/0307078 A1, Sep. 30, 2021
Int. Cl. H04W 74/0833 (2024.01); H04L 5/00 (2006.01); H04W 16/14 (2009.01); H04W 24/08 (2009.01); H04W 48/16 (2009.01); H04W 74/0808 (2024.01)
CPC H04W 74/0833 (2013.01) [H04L 5/0048 (2013.01); H04W 16/14 (2013.01); H04W 24/08 (2013.01); H04W 74/0808 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for performing random access channel procedure by a User Equipment (UE) (300) for unlicensed operation in a wireless network, the method comprising:
determining, by the UE (300), a first measurement metric and a second measurement metric for one of a plurality of SSBs (Synchronization Signal Block) and a plurality of CSI-RSs (Channel State Information-Reference Signal), wherein the first measurement metric is a channel congestion;
selecting, by the UE (300), one of a first set of SSBs and a first set of CSI-RSs from one of the plurality of SSBs and the plurality of CSI-RSs based on the first measurement metric, wherein the first set of SSBs is a subset of the plurality of SSBs, and the first set of CSI-RSs is a subset of the plurality of CSI-RSs;
selecting, by the UE (300), one of a second set of SSBs and a second set of CSI-RSs from one of the first set of SSBs and the first set of CSI-RSs based on the second measurement metric, wherein the second set of SSBs is a subset of the first set of SSBs, and the second set of CSI-RSs is a subset of the first set of CSI-RSs;
determining, by the UE (300), selection criteria based on a best value of the first measurement metric; and
selecting, by the UE (300), one of at least one candidate SSB and at least one candidate CSI-RS from one of the second set of SSBs and the second set of CSI-RSs based on the selection criteria.