Method and architecture for interworking of standardised networks

Abstract

A method for performing interworking of a standardised wireless communication network (2) and a standardised cellular network (3), comprising the steps of: using a marked service flow over a radio link in the standardised wireless communication network (2) as being dedicated to be sent over the standardised cellular network (3); transporting said marked service flow in a service flow tunnel (13.2) in the standardised wireless communication network (2); mapping said service flow tunnel (13.2) to an inter-network tunnel (13.3) from an element (7) of said standardised wireless communication network (2) to an element (8) of said standardised cellular network (3).

Description

[0001] Cross References to Related Applications [0002] The present invention is based on priority application EP 06290679.7, the content of which is incorporated into the present description by reference. technical field [0003] The present invention relates to a method for performing interworking between a standardized wireless communication network and a standardized cellular network, wherein the standardized wireless communication network is specifically but not limited to a WiMAX network, and the standardized cellular network is specifically but not limited to a 3GPP or 3GPP2 core network. [0004] The invention also relates to a network element for use in the interworking of a standardized wireless communication network, such as a WiMAX network, and a standardized cellular network, such as a 3GPP or 3GPP2 core network. [0005] Furthermore, the invention relates to a communication system comprising a standardized wireless communication network comprising at least one b...

AI Technical Summary

Problems solved by technology

However, such an approach has serious flaws:

[0008] Reuse of the 3GPP WLAN interworking solution described above would mean using a Virtual Private Network (VPN)-like tunnel from the (mobile) User Equipment (UE) to the Packet Data Gateway (PDG) of the 3GPP network, which is not well suited for the WiMAX context, Because the VPN-like tunnel is based on the second version of Internet Key Exchange (IKEv2) and Internet Protocol Security (IPSec) implementation: IKEv2 execution cycle keeps active (cyclic keep alive), which will prevent WiMAX terminals from entering idle mode, so it needs to be in Additional signaling on the radio link and additional terminal power consumption

On the other hand, IPSec is useless because WiMAX already provides a secure end-to-end solution, so additional IPSec encryption / integrity over WiMAX will only generate overhead traffic over the WiMAX wireless link

In addition, useless IPSec requires additional CPU performance in both the terminal and the network, thus leading to an increase in cost

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