Methods for processing multicast/broadcast service data and apparatuses thereof

A method for controlling, by a target base station, reception of multicast/broadcast service (MBS) data by a user equipment (UE), the method comprising:

• receiving a handover request message including MBS session ID, MBS service area identifier and QoS flow information from a source base station;
• generating radio bearer configuration information for the UE to receive MBS session data;
• and
• transmitting the radio bearer configuration information to the source base station,
• wherein the QoS flow information includes QoS flow identifier, and
• wherein generating the radio bearer configuration information includes:
• when the target base station does not support MBS transmission, generating the radio bearer configuration information using PDU session context information associated with the MBS session for the MBS session data.

A user equipment (UE) receiving multicast/broadcast service (MBS) data, the UE comprising:

• a receiver configured to receive, through a source base station, radio bearer configuration information for receiving MBS session data through a target base station when handover is determined;
• and
• a controller configured to configure a radio bearer for receiving the MBS session data through the target base station based on the radio bearer configuration information, wherein the receiver:
• further receives the MBS session data through the radio bearer, wherein the radio bearer configuration information is information generated by the target base station and transmitted to the source base station,
• wherein the source base station transmits a handover request message to the target base station,
• wherein the handover request message includes MBS session ID, MBS service area identifier and QoS flow information,
• wherein the QoS flow information includes QoS flow identifier, and
• wherein the target base station, when the target base station does not support MBS transmission, generates the radio bearer configuration information using PDU session context information associated with an MBS session for the MBS session data.