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

摘要

A method and apparatus are provided for transmitting a data frame using channel bonding in a wireless local area network in which high throughput (HT) stations and legacy systems coexist. The method includes adding a legacy format physical layer header including information, which indicates that a medium is being used while a frame exchange sequence is performed with respect to the HT format data frame, to the HT format data frame, transmitting the HT format data frame with the physical layer header by using channel bonding, and broadcasting the legacy format CF-End frame through a plurality of channels used in the channel bonding. Accordingly, after a frame exchange sequence is completed, the legacy stations which use channels used in the channel bonding can participate in a fair contention for medium access.

主权项

1. A method of transmitting a high throughput (HT) format data frame in a wireless local area network 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 a RATE field value and a LENGTH field value which determined a time period that legacy stations will not transmit data; transmitting the HT format data frame with the legacy format physical layer header using channel bonding; and separately broadcasting a control frame, which allows the HT and legacy stations to reset a waiting time for using a medium, through each of a plurality of channels used in the channel bonding, wherein, in the transmitting, the HT format data frame is transmitted at a first bandwidth by bonding two channels, each having a second bandwidth less than the first bandwidth.