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    • 46. 发明申请
    • METHOD FOR PERFORMING LBT IN WIRELESS ACCESS SYSTEM SUPPORTING UNLICENSED BAND, AND APPARATUS SUPPORTING SAME
    • 用于在支持未授权频带的无线接入系统中执行LBT的方法以及支持相同的装置
    • WO2016122249A3
    • 2016-09-15
    • PCT/KR2016001003
    • 2016-01-29
    • LG ELECTRONICS INC
    • KIM SEONWOOKAHN JOONKUIKIM BYOUNGHOONLEE SEUNGMINPARK HANJUN
    • H04W74/08H04W72/12
    • H04W72/12H04W74/08
    • The present invention relates to a wireless access system supporting an unlicensed band, and provides methods for performing an LBT operation to efficiently perform carrier sensing and apparatuses supporting the same. As one embodiment of the present invention, a method for performing, by a terminal in a wireless access system supporting an unlicensed band, listen before talk (LBT) in order to transmit an uplink signal comprises the steps in which: the terminal performs an initial LBT in an unlicensed band cell (U cell); and the terminal performs an expanded LBT if the U cell is in a busy state as a result of performing the initial LBT; and the terminal transmits the uplink signal if the U cell is in an idle state as a result of performing the initial LBT, and further may comprise a step in which the terminal transmits the uplink signal if the U cell is in an idle state as a result of performing the expanded LBT.
    • 支持未许可频带的无线接入系统及其支持方法技术领域本发明涉及一种支持未许可频带的无线接入系统,并且提供用于执行LBT操作以有效执行载波感测的方法以及支持该方法的装置。 作为本发明的一个实施例,一种支持非授权频段的无线接入系统中的终端进行监听通话(LBT)以发送上行信号的方法包括以下步骤:终端执行初始化 LBT在非授权频段的小区(U小区); 如果作为执行初始LBT的结果U小区处于繁忙状态,则终端执行扩展的LBT; 并且如果作为执行初始LBT的结果,U小区处于空闲状态,则终端发送上行链路信号,并且还可以包括终端在U小区处于空闲状态时发送上行链路信号作为 执行扩展LBT的结果。