| 摘要 |
A packet data service node (202) is formed to establish an "always on" connection with a mobile terminal (210,212) by way of a packet control function card (206B-C) or device with the ability to determine when a mobile terminal (210,212) no longer requires a previously established point-to-point protocol communication link. More specifically, the PDSN formed according to one embodiment of the present invention, includes an inactivity timer and corresponding logic to prompt it to generate an LCP Echo Request (326-330) to the mobile terminal after expiration of the inactivity timer. Each time data or control signals are received from the mobile terminal, the inactivity timer is reset. In one embodiment of the invention, the LCP Echo Request (326-330) is generated at least once and a total of three times prior to the release of network resources responsive to not receiving an LCP Echo Reply from the mobile terminal. Logic defined by the PDSN and its corresponding method of operation facilities the release of resources being wasted by a mobile terminal that no longer needs resources. |
