Patent ID: 7916683

Claim:
A wireless network coordinator of a network comprising: a media access control unit which generates a beacon frame for configuring a super frame comprising a plurality of channel time blocks which comprise at least one reserved channel time block and at least one unreserved channel time block; a bandwidth management unit which sets a specified channel time block among the at least one reserved channel time block as a reserved period in which a bandwidth allocation packet is transmitted or received for contention between a plurality of stations in the network to be allocated a bandwidth; and a physical unit which transmits the beacon frame, which comprises reservation information on the setting the specified channel time block as the reserved period by the bandwidth management unit, through a designated communication channel, wherein, before the setting the specified channel time block as the reserved period, the reserved channel time block is set to correspond to a time period in which a station in the network is allocated the bandwidth without contention with other stations in the network, and the unreserved channel time block is set to correspond to another time period in which the station is allocated the bandwidth through contention with the other stations, and wherein the reservation information comprises information indicating an existence, a starting time, a size and a number of the specified channel time block.