Generic access network (GAN) controller selection in PLMN environment

摘要

In one embodiment, a scheme is provided for selecting a generic access network (GAN) controller by a user equipment (UE) device disposed in a network environment including a GAN. Responsive to a query request by the UE device, one or more IP addresses of GANC nodes are obtained, each node for accessing a particular Public Land Mobile Network (PLMN). The UE device then authenticates with at least one GANC node for obtaining access service to a PLMN coupled thereto.

主权项

1. A method performed by a user equipment (UE) device for selecting a generic access network (GAN) controller (GANC), said UE device being registered on a given Public Land Mobile Network (PLMN), the method comprising:
if a list of PLMNs available via an access network has been obtained via one of Extensible Authentication Protocol (EAP) authentication and scanning and said given PLMN is in said list, constructing a Fully Qualified Domain Name (FQDN) comprising a PLMN ID of said given PLMN to obtain an Internet Protocol (IP) address of a selected GANC node, transmitting said FQDN via said access network, receiving an IP address corresponding to a-GANC node operably coupled to said given PLMN and authenticating with said GANC node for obtaining service via said GAN to said given PLMN; and if a list of PLMNs has not been obtained, constructing one of a generic FQDN and a home FQDN, receiving at least one IP address for a corresponding GANC node operably coupled to a respective PLMN, selecting a GANC node operably coupled to one of said given PLMN and a home PLMN of said UE device if available, and authenticating with said selected GANC node for obtaining service via said GAN to a selected PLMN operably coupled thereto.