US 12,068,839 B2
Methods and systems for performing cell search in a millimeter wave (mmWave) based communication network
Sripada Kadambar, Bangalore (IN); Ankur Goyal, Bangalore (IN); and Ashok Kumar Reddy Chavva, Bangalore (IN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Jan. 11, 2022, as Appl. No. 17/572,997.
Application 17/572,997 is a continuation of application No. PCT/KR2020/009653, filed on Jul. 22, 2020.
Claims priority of application No. 201941029559 (IN), filed on Jul. 22, 2019; and application No. 201941029559 (IN), filed on Jul. 9, 2020.
Prior Publication US 2022/0173824 A1, Jun. 2, 2022
Int. Cl. H04J 11/00 (2006.01); H04B 7/06 (2006.01); H04L 27/26 (2006.01)
CPC H04J 11/0069 (2013.01) [H04B 7/0695 (2013.01); H04L 27/2614 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for performing a cell search in a millimeter wave (mmWave) based communication network, the method comprising:
monitoring, by a User Equipment (UE), a plurality of signals from at least one Base Station (BS) on a plurality of receive (Rx) beams;
determining, by the UE, power metrics associated with each of the plurality of Rx beams;
selecting, by the UE, a subset of Rx beams from the plurality of Rx beams using the determined power metrics associated with each of the plurality of Rx beams; and
performing, by the UE, the cell search by scanning the selected subset of Rx beams in a pre-determined order to detect a cell identifier (ID) of the at least one BS,
wherein the selecting, by the UE, of the subset of Rx beams from the plurality of Rx beams is performed in parallel with coarse frequency estimation and correction using a cyclic prefix (CP) with a beam scheduling or a beam combining for one or more of a plurality of absolute radio frequency channel numbers (ARFCNs).