METHOD AND APPARATUS OF PERFORMING RANDOM ACCESS ON UNLICENSED CARRIER

WIPO Patent Application WO/2020/050660

A1

A communication method and system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with a technology for Internet of things (IoT) are provided. The communication method and system may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method by a terminal for performing a random access (RA) procedure is provided. The method comprises transmitting a first RA preamble to a base station, initiating to monitor a first RA response (RAR) as a response to the first RA preamble in an RAR window, and based on the terminal failing to receive the first RAR in until end of a retransmission time, transmitting a second RA preamble to the base station.

JP3443340	METHOD FOR ALLOWING NEW CONNECTION BASED ON UTILITY PRIORITY IN MULTIPLE ACCESS SYSTEM FOR COMMUNICATION NETWORK
WO/2021/126517	MESSAGE 2 PDSCH REPETITION BASED ON MULTI-SEGMENT RAR WINDOW
JP5015958	Coding of beacon signals that provide an ID in peer-to-peer communication

AGIWAL ANIL (KR)

PCT/KR2019/011506

March 12, 2020

September 05, 2019

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SAMSUNG ELECTRONICS CO LTD (KR)

H04W74/00; H04W74/08

WO2017030412A1	2017-02-23
WO2017121380A1	2017-07-20

US20140233492A1	2014-08-21
US20180176957A1	2018-06-21
US8576780B2	2013-11-05

YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)

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