Method and apparatus for transmitting data frame using channel bonding in wireless lan

A non-transitory computer-readable medium having embodied thereon a computer program for executing a method of transmitting a high throughput (HT) format data frame in a wireless local area network (LAN) in which HT stations and legacy stations, coexist, the method comprising:

• adding a legacy format physical layer header to the HT format data frame, the legacy format physical layer header comprising information which indicates that a medium is being used while a frame exchange sequence is performed with respect to the HT format data frame;
• transmitting the HT format data frame with the legacy format physical layer header using channel bonding;
• and
• separately broadcasting a legacy format control frame, which allows the HT and legacy stations to concurrently reset a waiting time for using the medium after recognizing the information, through each of a plurality of channels used in the channel bonding when a time period elapses after the transmission is completed,
• wherein, in the transmitting, the HT format data frame is transmitted at a bandwidth of 40 MHz by bonding two channels, each having a bandwidth of 20 MHz.

An apparatus for transmitting a high throughput (HT) format data frame in a wireless local area network in which HT stations and legacy stations, coexist, the apparatus comprising:

• a header inserting unit which adds a legacy format physical layer header to the HT format data frame, the legacy format physical layer header comprising information which indicates that a medium is being used while a frame exchange sequence is performed with respect to the HT format data frame;
• and
• a frame transmitting unit which transmits the HT format data frame with the legacy format physical layer header using channel bonding, and broadcasts a legacy format control frame, which allow the stations to concurrently reset a waiting time for using the medium after recognizing the information, separately through each of a plurality of channels used in the channel bonding when a time period elapses after the transmission of the HT format data frame with the legacy format physical layer header is completed,
• wherein, the frame transmitting unit sends the HT format data frame at a bandwidth of 40 MHz by bonding two channels, each having a bandwidth of 20 MHz.