×

Method for transmitting and receiving uplink signal in wireless communication system supporting unlicensed band, and apparatus supporting same

  • US 10,736,140 B2
  • Filed: 03/08/2017
  • Issued: 08/04/2020
  • Est. Priority Date: 03/08/2016
  • Status: Active Grant
First Claim
Patent Images

1. A method of transmitting an uplink signal, which is transmitted by a user equipment (UE) to a base station in a wireless communication system supporting an unlicensed band, the method comprising:

  • receiving a signal for scheduling uplink transmission in an Nth (N is a natural number) subframe from the base station;

    when there is a currently performed first LBT (listen-before-talk) prior to the Nth subframe and a channel access priority class of a first LBT parameter for the first LBT is equal to or greater than a channel access priority class of a second LBT parameter for a second LBT indicated for the Nth subframe, continuously performing the currently performed first LBT;

    when there is the currently performed first LBT prior to the Nth subframe and the channel access priority class of the first LBT parameter for the first LBT is less than the channel access priority class of the second LBT parameter for the second LBT, performing the second LBT; and

    performing uplink transmission based on a result of the LBT performed by the UE.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×