Patent ID: 8270324

Claim:
A method for bearer control and data distribution, comprising: storing, in at least one node of a multicast broadcast service (MBS), MBS service distribution information comprising information denoting upstream and downstream relations between nodes of the MBS service; establishing or maintaining a service bearer and a data distribution relation corresponding to the MBS according to the MBS service distribution information; and distributing service data of the MBS according to the service bearer and the data distribution relation; wherein a downstream node list corresponding to each node of the MBS service is stored in the respective nodes; wherein before an upstream node sends the service data of the MBS to a downstream node, the downstream node sends to the upstream node a registration request message indicating that the downstream node prepares to receive the MBS service data, and the registration request message carries identification information of the MBS; and wherein after receiving the registration request message, the upstream node establishes a service bearer with the downstream node initiating the MBS registration request or related nodes thereof in the downstream node list; and the related nodes in the downstream node list are downstream nodes located in same MBS zone as the downstream node initiating the registration request in the downstream node list corresponding to the MBS maintained by the upstream node or all downstream nodes in the downstream node list.