Patent ID: 9661659
Date: 2017-05-23
CPC Classifications: H04W

Claim:
1. A method to perform transmission and reception by a station (STA) in a wireless Local Area Network (LAN) system, comprising: performing clear channel assessment (CCA); transmitting a request relating to configuration of an uplink interval to an Access Point (AP) when power of an uplink transmission channel is equal to or higher than a first predetermined level is detected as a result of the CCA; and receiving interval information as a response to the request, wherein the received interval information is information synchronized with interval information of a basic service set (BSS) relating to the uplink transmission channel when the power of the uplink transmission channel is equal to or higher than the first predetermined level has resulted from the uplink transmission channel, wherein the received interval information is at least related to one of a restricted access window (RAW) and a transmission opportunity (TXOP) time duration, and wherein the channel access of the STA is prohibited in the uplink interval corresponding to the received interval information when power of a downlink transmission channel is equal to or higher than a second predetermined level has resulted from the downlink transmission channel.