Patent ID: 8649797

Claim:
A resource allocation apparatus adapted for a wireless network, the wireless network comprising a macro base station (BS) and a subscriber station (SS), the macro BS conveying a control message with fractional frequency reuse (FFR) information, the FFR information indicating a resource allocation state of the wireless network, the resource allocation apparatus communicating with the SS, the apparatus comprising: a storage, being configured to store a random function, reuse information and a QoS requirement; a transceiver, being configured to receive the control message from the macro BS; a processor, being electrically connected to the storage and configured to determine an unoccupied partition of a wireless network resource according to the FFR information of the control message, generate an allocation message according to the unoccupied partition of the wireless network resource, the random function and the reuse information; wherein the transceiver is electrically connected to the processor and further configured to convey the allocation message to the SS so that the SS proceeds a data transmission in the wireless network according to the allocation message; a sensing unit electrically connected to the processor and having a sensing period, the processor further determining that a constant arrival rate does not fulfill the QoS requirement to generate a period adjustment signal, the sensing unit being configured to adjust the sensing period of the sensing unit according to the period adjustment signal.