The first terminal having a funu00c7u00e7o transfer based on the protocol of transmissu00e7o control sequu00f3ncia, method of transfer based on protocol SCTP, and media present to gravau00c7u00e7o passu00cdvel readability

摘要

This is a terminal having a transfer function based on sequence control transmission protocol (SCTP stream control transmission protocol "), and a transfer method based on protocol SCTP.The terminal includes a session management unit that starts a session protocol SCTP for communication with a second terminal through the Internet and terminating a session protocol SCTP established between the terminal and the second terminal to interruption of communication between the t. Erminal and the second terminal; a collection unit information interconnection layer which receives signalsPositioning of a plurality of base stations connected to a router that is connected to the Internet and stores the signals for positioning in a database of information of state of interconnection layer; a unit for extraction of signal intensity.If the terminal join in an overlap area between a first communication area managed by a first base station and a second communication area managed by the second base station while an SCTP session is established between the terminal and the The second terminal, extracts the intensity of a positioning signal transmitted by the second base station.The database of state information of the interconnection layer; and a transfer unit which, if the intensity ejected the positioning signal is greater than a first critical value, adds an address ie received from the second base station to the session protocol SCTP est Abelecida between the terminal and the other terminal.And if the intensity extracted from the positioning signal is larger than a second critical value, calls the second terminal communicates with the terminal using the IP address received from the second base station.In this way, it becomes possible to reduce a level of investment in network equipment and provide uni method for efficient transfer by addition of a stack of protocol SCTP to a mobile terminal.