Patent ID: 7424001

Claim:
A data slot allocation method for a plurality of devices in a distributed wireless personal area network (WPAN), the method comprising: transmitting and receiving, at the plurality of the devices, quality of service (QoS) information required to transmit data streams via a common control channel, and allocating a first specific number of data slots to the plurality of the devices based on the QoS information; checking the QoS information and additionally allocating a second specific number of data slots to a first device upon determining that the first device transmitting one of the data streams is allocated data slots less than a number of required data slots for the data stream transmission in current superframe; and reserving the additionally allocated data slots for the first device by calculating a QoS satisfaction degree using the number of required data slots and a number of desired data slots and reducing a number of data slots to be allocated to other devices in proportion to the calculated QoS satisfaction degree in next superframe.