Patent ID: 8565200

Claim:
A method of changing a beacon position at a device in a wireless network in which a coordinator alone is broadcasting beacons to control the wireless network, the method comprising: receiving a beacon from the coordinator of the wireless network once the wireless network is established; transmitting a change request message to the coordinator, the change request message for requesting a change of the beacon position upon which a beacon is to be sent by the coordinator among configuration parameters of the wireless network, the change request message comprising a beacon position change field that includes an offset value representing a shift distance between an original beacon position and a requested new beacon position on a time-divided superframe; receiving a response message from the coordinator in response to the change request message, the response message comprising a reason code field that includes a reason code corresponding to the change request message; and receiving a plurality of beacons from the coordinator when the reason code corresponds to “SUCCESS,” wherein each of the plurality of beacons comprises a parameter change information element (IE) including a changed beacon position.