US Patent No. 10,772,127

METHOD AND DEVICE FOR TRANSMITTING DATA BURST IN WIRELESS ACCESS SYSTEM SUPPORTING UNLICENSED BAND AND CARRIER AGGREGATION


Patent No. 10,772,127
Issue Date September 08, 2020
Title Method And Device For Transmitting Data Burst In Wireless Access System Supporting Unlicensed Band And Carrier Aggregation
Inventorship Seonwook Kim, Seoul (KR)
Joonkui Ahn, Seoul (KR)
Hanbyul Seo, Seoul (KR)
Byounghoon Kim, Seoul (KR)
Hanjun Park, Seoul (KR)
Assignee LG Electronics Inc., Seoul (KR)

Claim of US Patent No. 10,772,127

1. A method for a base station in a wireless access system, the method comprising:selecting a first component carrier (CC) included in a set of CCs, wherein the CCs are configured in an unlicensed band;
performing a first channel access procedure (CAP) on the first CC;
transmitting, based on the first CAP, a first transmission burst on the first CC after the first CC is determined to be idle and after a random number decrements to 0 based on decrementing the random number by 1 for each slot duration related to the first CC determined to be idle, wherein the random number is randomly obtained among a value included in a contention window;
performing a second CAP on a second CC included in the set of CCs for a predetermined time duration immediately before the transmission of the first transmission burst on the first CC, wherein the second CC is different from the first CC; and
transmitting, based on the second CAP, a second transmission burst on the second CC after the second CC is determined to be idle for the predetermined time duration.