公开(公告)号：US12068839B2

公开(公告)日：2024-08-20

申请号：US17572997

申请日：2022-01-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sripada Kadambar ,  Ankur Goyal ,  Ashok Kumar Reddy Chavva

IPC: H04J11/00 ,  H04B7/06 ,  H04L27/26

CPC classification number: H04J11/0069 ,  H04B7/0695 ,  H04L27/2614

Abstract: Presented herein is a pre-5th-Generation (5G) or 5G communication system that supports higher data rates beyond 4th-Generation (4G) communication systems. In particular, methods and systems for performing cell search in a millimeter wave (mmWave) based communication network are presented. A method disclosed herein includes selecting a subset of receive (Rx) beams from a plurality of Rx beams and scheduling a scan order for the selected subset of Rx beams, upon receiving a plurality of signals from a Base Station. The method also includes performing a cell search using the selected subset of Rx beams individually in the determined scan order. The method further includes combining two or more of the selected Rx beams, upon failing the cell search using the selected subset of Rx beams individually. The method further includes performing the cell search using the combined Rx beams.

公开(公告)号：US11894908B2

公开(公告)日：2024-02-06

申请号：US17825629

申请日：2022-05-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ashok Kumar Sahoo ,  Anusha Gunturu ,  Ankur Goyal ,  Ashok Kumar Reddy Chavva ,  Divpreet Singh

IPC: H04B7/08 ,  H04W64/00 ,  H04W72/23

CPC classification number: H04B7/086 ,  H04B7/088 ,  H04B7/0857 ,  H04W64/006 ,  H04W72/23

Abstract: A method for managing beam alignment by a user equipment is provided. The method comprises receiving beam width information and base station location information from a base station, calculating a displacement of location of the UE based on location coordinates of the UE, measuring a change in a signal strength of the UE due to the displacement, and determining whether the UE is moving towards or away from the base station using at least one of the beam width information, base station location information, the displacement, and the measured change in the signal strength, determining whether a beam re-alignment is required based on the determination of the movement of UE, and transmitting a realignment request to the base station for a re-aligned beam width and a new transmission beam based on determining that the beam re-alignment is required.