Patent ID: 9007976
Filing Date: 2015-04-14
Classification: H04L,H04W,Y02B,Y02D

Abstract:
1. A method of maintaining communication between a mobile terminal and a network node over a network, the method comprising: detecting a rate with which requests are made to or from the mobile terminal; dynamically adjusting time intervals between the keep-alive messages sent to or from the mobile terminal based on the rate with which the requests are made; sending, keep-alive messages to or from the mobile terminal in an absence of network traffic between the mobile terminal and the network node; monitoring the lengths of several periods of communication inactivity between the mobile terminal and the network node; determining a maximum interval between keep-alive messages based on the several monitored lengths of periods of inactivity such that the maximum interval meets a criterion of statistical confidence; and setting at least one interval between keep-alive messages to the maximum determined interval.