Method of performing and supporting handover in broadband wireless access system

A method for supporting a handover between first and second Multicast and Broadcast Service (MBS) zones in a wireless access system, the method comprising:

• receiving a handover request message between the first and second MBS zones from a mobile station, by a first base station belonging to the first MBS zone, wherein a first MBS zone identifier (ID) is used for the first MBS zone;
• requesting parameter information received for the mobile station, wherein the parameter information required for receiving a multicast and broadcast service (MBS) data in the second MBS zone, to an upper network entity of the second MBS zone employing a second MBS zone identifier (ID), by an upper network entity of the first MBS zone;
• and
• receiving the parameter information provided from the upper network entity of the second MBS zone, by the upper network entity of the first MBS zone.