US Patent No. 10,694,544

METHOD AND APPARATUS FOR PERFORMING CONTENTION-BASED ACCESS IN A MOBILE COMMUNICATION SYSTEM


Patent No. 10,694,544
Issue Date June 23, 2020
Title Method And Apparatus For Performing Contention-based Access In A Mobile Communication System
Inventorship Soeng Hun Kim, Suwon-si (KR)
Gert Jan Van Lieshout, Apeldoorn (NL)
Assignee Samsung Electronics Co., Ltd., Suwon-si (KR)

Claim of US Patent No. 10,694,544

1. A method for performing an uplink transmission by a terminal in a mobile communication system supporting a carrier aggregation, the method comprising:receiving, from a base station, first configuration information of a first logical channel and second configuration information of a second logical channel for the terminal, the first configuration information of the first logical channel indicates whether data of the first logical channel is allowed to be transmitted on a cell associated with a contention based resource, and the second configuration information of the second logical channel indicates whether data of the second logical channel is allowed to be transmitted on the cell associated with the contention based resource;
identifying that a first data of the first logical channel is not allowed to be transmitted on the cell based on the first configuration information, and second data of the second logical channel is allowed to be transmitted on the cell based on the second configuration information;
determining whether an uplink grant received from the base station is associated with the cell;
transmitting, to the base station, all or part of the first data of the first logical channel and the second data of the second logical channel determined based on a priority order of the first logical channel and a priority order of the second logical channel using the uplink grant, in case that the uplink grant is not associated with the cell; and
transmitting, to the base station, the second data of the second logical channel using the uplink grant, in case that the uplink grant is associated with the cell.