ADAPTIVE RELEASE/INACTIVITY TIMER FOR CONTROLLING NON REAL-TIME DATA CONNECTION RESOURCES IN A MOBILE COMMUNICATION NETWORK

摘要

The present invention describes a method, network node and a system for controlling network resources for non real-time data connections in a mobile communication network. Further, the present describes an adaptive inactivity timer, which takes into account the history of the current traffic flow and the nature of the NRT traffic. Traffic must be measured in the mobile communication network for each NRT traffic flow to which the adaptive inactivity timer is used. Specially, the adaptive inactivity timer for the NRT bearers in the WCDMA networks (UTRAN, IP RAN) is concerned.The different NRT traffic protocols, e.g. the TCP, have known transport patterns. The releasing of different resources in mobile communication network can be made dependent of the traffic and on the phase of the transmission. For example, some TCP/IP traffic has different transmission pattern than the WTP has, and further the TCP/IP has different traffic patters in the beginning of the transmission and after a while.