Patent ID: 7477630

Claim:
A transmission controller used in a media access control (MAC) processing apparatus, comprising: a transmission frame sorting means for sorting out transmission frames transmitted from a logical link control (LLC) layer based on each transmission service and requesting control of the transmission frames; a transmission queue controlling means for requesting to store the transmission frames, information on the transmission frames, and controlling the transmission of the transmission frames by using first frame identifiers (FID) and the information on the transmission frames, upon the request for controlling the transmission frames from the transmission frame sorting means; a transmission queue storing means for storing information on the sorting of the transmission frames based on each transmission service or each mobile terminal under the control of the transmission queue controlling means; a frame controlling means for storing the transmission frames under the control of the transmission queue controlling means, generating and storing CF POLL frames when the mobile terminal associated with an access point can respond to a CF POLL frame, and transmitting the transmission frames and the CF POLL frames to a wireless physical layer; a shared transmission frame storing means for storing the transmission frames in a form of a transmission frame structure list where transmission frame structures are connected with each other under the control of the frame controlling means, and transmitting the transmission frames to the wireless physical layer based on the list, the transmission frame structures being formed on an MAC protocol data unit (MPDU) basis; and a CF POLL frame storing means for storing the CF POLL frames used in a point coordination function (PCF) service and transmitting the CF POLL frames to the wireless physical layer under the control of the frame controlling means.