| 摘要 |
A method of retrieving location information for a UE connected to a managed access network. The method is performed in an ePDG upon completion of: the UE attaching to an access point of the managed access network including obtaining an outer IP address from an address space owned by the managed access network; establishing an IP tunnel between the ePDG and the UE over the managed access network, wherein the IP tunnel uses addresses from the address space owned by the managed access network for outer headers of traffic sent via the tunnel; and the UE registering with a service network via the IP tunnel, including obtaining an inner IP address from an address space of the service network. The ePDG receives a request for location information for the UE from a PDN-GW or AAA, server, and sends a request for location information for the UE to a DHCP server of the managed access network, the request for location information comprising the outer IP address of the UE. The ePDG then receives a response containing location information for the UE from the DHCP server and sends a response containing the location information for the UE to the PDN-GW or AAA server. |
