DISTRIBUTION ROUTE DATABASE SERVER, NODE DEVICE, BROADCAST SERVICE DISTRIBUTION CONTROL SYSTEM, AND BROADCAST SERVICE DISTRIBUTION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a distribution route database server, a node device, a broadcast service distribution control system, and a broadcast service distribution control method, for performing broadcast data distribution control by reducing a load without securing unnecessary resources.;SOLUTION: When receiving an MBMS session start request for session establishment to a specific distribution area, from a higher-order node, a node 30 inquires of a distribution route database server 10 about address information of a lower-order node to which the MBMS session start request should be transferred. The node 30 transfers the MBMS session start request to only a lower-order node discriminated by address information received as a reply to the inquiry.;COPYRIGHT: (C)2005,JPO&NCIPI