Cell reselection method for receiving packet data in a mobile communication system supporting MBMS

A method for reselecting a cell for a Multimedia Broadcast/Multicast Service (MBMS) service in a mobile communication system which supports the MBMS service with different frequency allocations (FAs) in the same area, the method comprising the steps of:

• transmitting, by a radio network controller (RNC), a system information block (SIB) to a user equipment (UE), the SIB including identification information indicating whether a neighbor cell is available for the MBMS service;
• and
• performing, by the UE, cell reselection to an MBMS cell using the SIB.

A method for reselecting a cell for a Multimedia Broadcast/Multicast Service (MBMS) service in a mobile communication system which supports the MBMS service with different frequency allocations (FAs) in the same area, the method comprising the steps of:

• periodically transmitting, by a radio network controller (RNC), identification information indicating whether a neighbor cell is available for an MBMS service, to a user equipment (UE) through a control message;
• and
• performing, by the UE, cell reselection to an MBMS cell using the identification information received through the control message.

A method for performing cell reselection to a preferred frequency band by a user equipment (UE) in a mobile communication system which supports a Multimedia Broadcast/Multicast Service (MBMS) service with different frequency allocations (FAs) in the same area, the method comprising the steps of:

• receiving, from a radio network controller, a message including an MBMS service identifier (ID), information on a preferred frequency for the MBMS service, and an MBMS offset for controlling cell reselection;
• performing inter-frequency measurement using the information included in the message;
• and performing cell reselection if a preferred frequency band for an MBMS cell is higher in reception power than a frequency band for a current cell.

A method for providing by a radio network controller (RNC) a Multimedia Broadcast/Multicast Service (MBMS) service to a user equipment (UE) located in a non-MBMS frequency allocation (FA) in a mobile communication system which supports the MBMS service with different FAs in the same geographical area, the method comprising the steps of:

• transmitting, by the RNC, a system information block (SIB) including information on an MBMS FA to the UE;
• and
• periodically transmitting a message including information on the MBMS FA to the UE.