초록 ▼

Provided is a distributed and asynchronous implicit token carrier sense multiple access/collision avoidance (CSMA/CA) protocol guaranteeing quality of service for both real time and non-real time traffic. The implicit token CSMA/CA protocol allocates a band in an entire bandwidth to voice traffic an

Provided is a distributed and asynchronous implicit token carrier sense multiple access/collision avoidance (CSMA/CA) protocol guaranteeing quality of service for both real time and non-real time traffic. The implicit token CSMA/CA protocol allocates a band in an entire bandwidth to voice traffic and allows the remaining bands to be used for data traffic. The implicit token CSMA/CA protocol includes applying a token passing protocol to transmit voice traffic in real time by having a band in an entire bandwidth allocated using a predetermined data frame and applying a CSMA/CA mechanism to transmit data traffic in non-real time by employing remaining bands not allocated to the voice traffic using another predetermined data frame.

대표청구항 ▼

What is claimed is: 1. A media access control method of a wireless communication system, the method comprising:transmitting one or more frames based on a contention-free based media access protocol at a timing when receiving a predetermined frame from a media access controller, wherein the predeterm

What is claimed is: 1. A media access control method of a wireless communication system, the method comprising:transmitting one or more frames based on a contention-free based media access protocol at a timing when receiving a predetermined frame from a media access controller, wherein the predetermined frame includes information to determine the timing; andtransmitting one or more frames based on a carrier sense multiple access/collision avoidance protocol (CSMA/CA) when not receiving the predetermined frame from the media access controller, wherein the contention based media access protocol uses a plurality of inter frame spaces (IFSs), wherein the duration of IFS with a higher priority is shorter than the duration of IFS with a lower priority,wherein CSMA/CA protocol comprise:monitoring a state of a channel and transmitting a Request To Send frame to the media access controller when the channel is free during a predetermined duration of IFS,receiving a Clear to Send frame from the media access controller after the shortest IFS; andtransmitting a frame to the media access controller after the shortest IFS.