US Patent No. 10,694,550

APPARATUS AND METHOD FOR INITIAL ACCESS IN WIRELESS COMMUNICATION SYSTEM


Patent No. 10,694,550
Issue Date June 23, 2020
Title Apparatus And Method For Initial Access In Wireless Communication System
Inventorship Yinan Qi, Staines (GB)
Maziar Nekovee, Staines (GB)
Assignee Samsung Electronics Co., Ltd., Suwon-si (KR)

Claim of US Patent No. 10,694,550

1. A method of operating a base station in a wireless communication system, the method comprising:receiving, from a terminal, at least one of first random access signals transmitted through transmit beams of the terminal;
identifying at least one receive beam of the base station corresponding to a location of the terminal, wherein the location of the terminal is identified based on a signal strength for the transmit beams measured by the base station based on the at least one of the first random access signals, and a signal strength for transmit beams measured by at least two other base stations based on the at least one of the first random access signals;
receiving, from the terminal based on the identified at least one receive beam, at least one of second random access signals transmitted through the transmit beams of the terminal; and
establishing a connection with the terminal based on a signal strength for the at least one of the second random access signals,
wherein the at least two other base stations comprise a first base station and a second base station,
wherein the location of the terminal is identified based on:
a beam index of a transmit beam of the terminal having a highest signal strength measured by the base station among the transmit beams;
a beam index of a transmit beam of the terminal having a highest signal strength measured by the first base station among the transmit beams; and
a beam index of a transmit beam of the terminal having a highest signal strength measured by the second base station among the transmit beams, and
wherein a respective signal strength corresponds to a power density profile (PDP).