Method and apparatus of requesting channel access in wireless local area network

摘要

A method and apparatus of requesting a channel access in a wireless local area network is provided. A transmitter transmits a plurality of Request To Send (RTS) frames over a plurality of requesting channels and receives at least one Clear To Send (CTS) frame over at least one responding channel as a response for the plurality of RTS frames. Each of the plurality of RTS frames indicates a bandwidth for the plurality of requesting channels, and the at least one CTS frame indicates a bandwidth for the at least one responding channel.

主权项

1. A method of requesting a channel access in a wireless local area network, the method comprising:
generating, by a transmitter, a 20 MHz Request To Send (RTS) frame, the 20 MHz RTS frame including requesting bandwidth information indicating a first bandwidth; duplicating, by the transmitter, the 20 MHz RTS frame one or more times to generate at least one duplicated 20 MHz RTS frame, each duplicated 20 MHz RTS frame including the requesting bandwidth information; transmitting, by the transmitter, the 20 MHz RTS frame over a 20 MHz requesting channel; transmitting, by the transmitter, the at least one duplicated 20 MHz RTS frame over the at least 20 MHz duplicated requesting channel, respectively; and receiving, by the transmitter, at least one 20 MHz Clear To Send (CTS) frame as a response to at least one of the 20 MHz RTS frame and the at least one duplicated 20 MHz RTS frame, each 20 MHz CTS frame including responding bandwidth information indicating a second bandwidth, wherein the first bandwidth is 20×(n+1) MHz to indicate an entire transmission bandwidth for the 20 MHz requesting channel and the at least one 20 MHz duplicated requesting channel, and wherein n is a positive number of the at least one duplicated 20 MHz RTS frame.