Method and apparatus of accessing channel in wireless communication system

摘要

A method and apparatus of accessing a channel in a wireless communication system is provided. The method includes receiving a first frame including configuration information on a channel allocated from a bandwidth including a primary channel, a secondary channel and an extension channel from an access point (AP), and transmitting a second frame to the AP by using the allocated channel. The configuration information includes an extension channel offset element field that sets the extension channel as the offset of the primary channel.

主权项

1. A method of accessing a channel in a wireless communication system, the method performed by an access point (AP) and comprising:
transmitting channel information to a station, the channel information including a secondary channel offset element and an extension channel offset element, the secondary channel offset element indicating a position of a secondary channel relative to a primary channel, and the extension channel offset element indicating a position of at least one extension channel; and performing a communication with the station by using the primary channel, the secondary channel and the at least one extension channel, wherein the secondary channel offset element is set to a value indicating one of first, second and third values, the first value indicating that no secondary channel is present, the second value indicating that the secondary channel is above the primary channel, and the third value indicating that the secondary channel is below the primary channel, and wherein the extension channel offset element is set to a value indicating one of fourth and fifth values, the fourth value indicating that the secondary channel and the primary channel are located below or above two extension channels, and the fifth value indicating that the secondary channel and the primary channel are located between two extension channels.