Method for transferring PPP inactivity time in a CDMA2000 network

摘要

A packet data service node is formed to establish an "always on" connection with a mobile terminal by way of a packet control function card or device with the ability to determine when a mobile terminal no longer requires a previously established point-to-point protocol communication link. Thus, to prevent unnecessary communications after a mobile terminal loses RF, the PDSN transmits a PPP inactivity timer remaining timer to the mobile terminal. The mobile terminal then generates communication s signals to the PDSN after regaining RF based upon an internal counter value initialized with the received PPP inactivity time remaining counter. In the described embodiment, the timer remaining timer value is equal to the inactivity timer summed with a total amount of time expected to be expended (in a worst case situation) soliciting responses from the mobile terminal with pings (e.g., LCP-Echo-Requests).