Method and apparatus for indicating preferred layer information in multimedia broadcast/multicast service (MBMS)

An apparatus for transferring preferred frequency information in a mobile communication system which establishes a preferred frequency layer and a non-preferred frequency layer for a Multimedia Broadcast/Multicast Service (MBMS) service, the apparatus comprising:

• a serving radio network controller for managing user equipments intended to receive the MBMS service;
• and
• a drift radio network controller for determining at least one preferred frequency of the MBMS service when a session of the MBMS service starts, generating the preferred frequency information representing said at least one preferred frequency, and transmitting the preferred frequency information to the serving radio network controller,
• wherein the serving radio network controller receives the preferred frequency information from the drift radio network controller, and notifies the user equipments intended to receive the MBMS service of said at least one preferred frequency according to the preferred frequency information.