Patent ID: 8830879

Claim:
A method of a mobile station (MS) performing handover from a serving-base station (S-BS) that supports a first communication scheme to a target-base station (T-BS) that supports a second communication scheme, the method comprising: receiving an advanced air interface-neighbor-advertisement (AAI-NBR-ADV) message via an MZone of the S-BS, the MZone used for the first communication scheme and the AAI-NBR-ADV message including information related to at least one neighboring BS having an MZone and further including information related to transmission timing of a mobile-neighbor-advertisement (MOB-NBR-ADV) message to be received via an LZone of the S-BS if the S-BS supports both the first and the second communication schemes, the LZone used for the second communication scheme; receiving the MOB-NBR-ADV message via the LZone of the S-BS based on the information related to the transmission timing, the MOB-NBR-ADV message including system information related to at least one neighboring BS having an LZone that is used for the second communication scheme; scanning the at least one neighboring BS; and performing the handover to an LZone of a T-BS among the at least one neighboring BS based on a result of the scanning.