MOBILE TELECOMMUNICATION SYSTEM DETECTING EFFICIENTLY RESTART OF GATEWAY GPRS SUPPORT NODE IN SERVING GPRS SUPPORT NODE AND METHOD THEREOF

摘要

The mobile communication system and method to efficiently detect the restart of the GGSN in the SGSN is described. In the mobile communication system, an asynchronous in a wireless mobile communication environment, when enabling the GGSN is restarted service provider again, express their failure conditions to immediately send either a Increased restarting including the counter value is an Echo-Request message to the SGSN be informed, so that the lost restarted by sending the set PDP context request (Create PDP context request) message to the GGSN by using the PDP context information that the SGSN determined the restart state of the GGSN is set to an existing relative to the subscriber mobile terminal GGSN restart the session information is immediately reset can be activated to restore the previous status. Therefore, it immediately sends the Echo-Request message from GGSN, regardless of the Echo-Request message, the transmission period of the SGSN, as compared with the conventional method, the more quickly can determine that the GGSN starts up, periodically send the Echo-Request message from the SGSN do not have to have the effect of reducing the amount of traffic between the SGSN and the GGSN. in addition, GGSN is used by restarting of his store the counter value in nonvolatile memory, there is an effect that can not be restarted even if the loss of its value.