MOBILE COMMUNICATION NETWORK AND INTERNET COOPERATED SYSTEM BY FRAME RELAY SWITCH VIRTUAL LINE METHOD AND METHOD OF THE SAME

摘要

PURPOSE: A mobile communication network and Internet cooperated system by a frame relay switch virtual line method and a method of the same are provided to cooperate an Internet network connected with a mobile communication network and a PPP server for providing an Internet service of a PPP server to a mobile communication user. CONSTITUTION: A call release request message is received from a mobile communication network. A path release with respect to the high speed switching unit is performed, and a call release completion message is transferred to the mobile communication network. A hierarchy-2 standard Q.922 frame of an ISDN frame mode bearer service is received from the mobile communication network(400). It is judged whether a data link connection identifier(DLCI) is 0(402). If the data link connection identifier is 0, it is judged whether the data link in which the data link connection identifier is 0 is set(404). If the data link connection identifier is not 0, it is judged whether the data link connection identifier is a data transfer state(406). If the data link connection identifier is a data transfer state, the data is transferred to the mobile communication network(408). If the data link connection identifier is not the data transfer stare, the received Q.922 frame is discarded(410).