Mobile Communication Control Method, Mobile Terminal, and Access Router

摘要

A technology is disclosed that provides a mobile communication control method, a mobile terminal, and an access router that allow communication to be continued after a handover without newly establishing all protocol states from the beginning. The technology includes a step at which a mobile node 100 transmits a sustain request message to an access router via any of a plurality of interfaces. The access router holds communication environment information related to communication performed via a first access router 200 and configured to expire after an elapse of a predetermined amount of time. The sustain request message stops the communication environment information from expiring after the elapse of the predetermined amount of time. The technology also includes a step at which the access router that has received the sustain request message resets the elapsing predetermined amount of time until expiration based on the sustain request message. The technology also includes a step at which the second access router 201 establishes a communication environment for a communication by the mobile node performed via the second access router itself based on the sustained communication environment information.