ROUTING SELECTION METHOD AND FUNCTIONAL NETWORK ELEMENT

摘要

Disclosed is a routing selection method, which is applied to a converged network of a WLAN access network and a 3GPP core network. A functional network element is arranged between the WLAN access network and the 3GPP core network. The method comprises: when UE accesses through a WLAN access network, a functional network element forwarding to an AAA an authentication request message sent by the UE, and forwarding to an access network element of the WLAN access network the authentication response message sent by the AAA; and/or the functional network element receiving an IP address request message sent by the access network element of the WLAN access network. Also disclosed at the same time is a functional network element. The present invention can conduct routing selection for 3GPP UE according to the type of the accessing UE and the service type, thereby reducing the access pressure of a 3GPP network.