Media access control apparatus of wireless lan for voip

The present invention is by using a priority for the audio data and non-voice data to the minimum of resources in a wireless local area network for, VoIP to be suitable for the wireless terminal for VoIP service ensuring the quality of service (Quality Of Service, hereinafter QoS), radio relates to a medium access control device for transmitting data from a LAN standard, is arranged so that, in accordance with the transmission data generated by the application in priority to ensure the communication quality in a wireless local area network for VoIP provided by a modem, a media access control device method, the kernel portion of the transmitted data transmitted from the application program to distinguish whether the non-voice data or voice data to; While performing the data service management function of the wireless LAN, the separation of the transmitted data transmitted from the kernel portions to audio data and non-voice data respectively stored in the two of the queue, and then transmits the MAC data headers to the MAC transmission unit, which is received MAC driver section for transmitting the stored audio data or non-voice data according to the transmission interrupt type to the MAC transmission unit; And a transmit interrupt to the MAC driver unit for the data to obtain a medium access opportunities to perform the MAC protocol independently for each of the audio data and non-voice data recognized, and that the transmission data generating first through the transmission of the MAC header transmission, by combining the audio data or non-voice data transmitted as a result and the header includes a MAC transmitter configured to output to the modem. VoIP, wireless LAN, MAC, QoS, IEEE802.11, IEEE802.11e