System and method for providing multicast and broadcast service supporting macro diversity

A multicast and broadcast service method, comprising:

• transmitting an MBS (multicast and broadcast service) data and an MBS Synchronization Rule to a BS (Base Station), by an ASN-GW (Access Service Network-Gateway);
• detecting loss of the MBS data by referring a GRE (Generic Routing Encapsulation) SN (Sequence Number) included in the MBS Synchronization Rule, and if the loss of the MBS data is detected, transmitting a Recovery Request for a missing MBS data to the ASN-GW, by the BS;
• and
• retransmitting the missing MBS data to the BS, by the ASN-GW,
• wherein if the BS does not receive a next MBS Synchronization Rule until next MBS Synchronization Rule expected TOA (Time of Arrival) included in the MBS Synchronization Rule, the BS transmits a Recovery Request for a missing MBS Synchronization Rule to the ASN-GW;
• and the ASN-GW retransmits the missing MBS Synchronization Rule to the BS.

A multicast and broadcast service method, comprising:

• accumulating MBS data packets received from an MCBCS (multicast and broadcast service) Server/Controller during a predetermined period, by an ASN-GW (Access Service Network-Gateway);
• generating an MBS Synchronization Rule by allocating GRE (Generic Routing Encapsulation) SN (Sequence Number) for the MBS data packets and transmitting the MBS Synchronization Rule to a BS (Base Station), by the ASN-GW;
• if the BS does not receive a next MBS Synchronization Rule until next MBS Synchronization Rule expected TOA (Time of Arrival) included in the MBS Synchronization Rule, transmitting a Recovery Request for a missing MBS Synchronization Rule to the ASN-GW, by the BS;
• retransmitting the missing MBS Synchronization Rule to the BS, by the ASN-GW;
• if the BS receives the MBS Synchronization Rule successfully, transmitting the MBS data packets accumulated during the predetermined period to the BS, by the ASN-GW;
• and
• packaging the MBS data packets into an MBS burst by referring the GRE SN included in the MBS Synchronization Rule and transmitting the MBS burst to an MS (Mobile Station), by the BS.

A multicast and broadcast service system, comprising:

• an MBS (multicast and broadcast service) Distribution DPF (Data Patch Function) for receiving and distributing MBS data;
• an MBS Synchronization Controller for generating and transmitting an MBS Synchronization Rule that includes GRE (Generic Routing Encapsulation) SN (Sequence Number) for the MBS data;
• an MBS Synchronization Executor for receiving the MBS Synchronization Rule from the MBS Synchronization Controller and executing MBS synchronization according to the MBS Synchronization Rule;
• and
• an MBS DPF for receiving MBS data from the MBS Distribution DPF, packaging the MBS data into an MBS burst, and transmitting the MBS burst to an MS (Mobile Station),
• wherein if the MBS Synchronization Executor does not receive a next MBS Synchronization Rule until next MBS Synchronization Rule expected TOA (Time of Arrival) included in the MBS Synchronization Rule, the MBS Synchronization Executor transmits a Recovery Request for a missing MBS Synchronization Rule to the MBS Synchronization Controller;
• and the MBS Synchronization Controller retransmits the missing MBS Synchronization Rule to the MBS Synchronization Executor.

A multicast and broadcast service system, comprising:

• an MBS (multicast and broadcast service) Distribution DPF (Data Patch Function) for receiving MBS data packets, distributing the MBS data packets to the corresponding MCBCS Service Flow, and assigning GRE (Generic Routing Encapsulation) SN (Sequence Number) for the MBS data packets;
• an MBS Synchronization Controller for generating an MBS Synchronization Rule that is applied to the MBS data packets;
• and
• an MBS Synchronization Executor for receiving the MBS Synchronization Rule and executing MBS synchronization for the MBS data packets according to the MBS Synchronization Rule,
• wherein the MBS Distribution DPF and the MBS Synchronization Controller are located in an ASN-GW (Access Service Network-Gateway), and
• wherein if the MBS Synchronization Executor does not receive a next MBS Synchronization Rule until next MBS Synchronization Rule expected TOA (Time of Arrival) included in the MBS Synchronization Rule, the MBS Synchronization Executor transmits a Recovery Request for a missing MBS Synchronization Rule to the MBS Synchronization Controller;
• and the MBS Synchronization Controller retransmits the missing MBS Synchronization Rule to the MBS Synchronization Executor.