METHOD FOR TRANSMITTING AND RECEIVING THE FRAME IN WIRELESS LAN

摘要

PURPOSE: A method for transmitting and receiving a frame in wireless LAN is provided to reduce transmission delay of a voice frame by selectively performing frame coupling depending on the existence of transmission-waiting voice frame. CONSTITUTION: When IFS begins, CR FAD(Collision Resolution and Frame Aggregation Decision) confirms a transmission-waiting frame in all AC(Access Category) queues(310,320). In case the transmission waiting time of a voice frame is greater than that of other AC frames, frame coupling is executed(340,350). The voice frame is preferentially transmitted(360). After completion of the frame coupling, MAC(Medium Access Control) checks a channel condition(370). MAC transmits a frame if the frame transmission is possible(380).