Method of transferring passage of communication for a mobile terminal, program for transferring passage of communication, the processing method of communication message to a node or a router, and processing program of communication message

摘要

Method of transferring passage of communication for a mobile terminal, program for transferring passage of communication, the processing method of communication message to a node or a router, e.Processing program of communication message is revealed a technique for allowing a mobile terminal to paassou by a trnsferu00eancia crossing communication quickly and continuously receives an additional service (for example, guarantee QoS) that was received before the transfer Relation of passage.According to the technique, when it is being made to transfer passage, a mobile terminal (mm) (10) selects, as a proxy, a node (qne) (proxy) (68), which is located next to a network AR (access router) (31) belonging to a subnet (30) to which the Mn is moving. It has a NSLP for QoS.The Mn then transmits a message to the proxy including a flow identifier and an identifier of the session related to a path (24) established with a CN (60) prior to the transfer of passage.The proxy transmits a message to the CN including these identifiers of flow and session, then establish, based on the outcome of a reply to this message, a new path (34), and then find a crossover node in which the two paths are joining.