Inbound LTE roaming footprint control

摘要

A method and article for authenticating a mobile station subscribed to a home network, in a visited network, includes the steps of receiving, at a visited proxy controlled by the visited network, a request to authenticate the mobile station on the visited network. Then, authorizing the mobile station on the visited network based on a parameter in the request and a policy stored on the visited proxy. The proxy communicates a denial of authorization to the visited network when the policy identifies a denial of service and the proxy communicates with the home network the request to authenticate the mobile station on the visited network, when the policy identifies an acceptance of service.

主权项

1. A method, comprising the steps of:
receiving, at a visited Diameter edge agent controlled by the visited network, an authorization information request transmitted by a visited mobility management entity (MME) requesting authentication of a mobile station, subscribed to a home network, on a visited network, wherein the authorization information request includes an identifier of the mobile station and a tracking area identifier of the mobile station provided by the visited MME; obtaining the tracking area identifier of the mobile station from the authorization information request; extracting home network information related to the mobile station from the mobile station identifier included in the authorization information request; based on the mobile station identifier and the tracking area identifier in the authorization information request, identifying at least the home network of the mobile station and a policy related to the identified home network; accessing the identified policy stored at the visited Diameter edge agent, wherein the identified policy is stored at the visited Diameter edge agent prior to receiving the authorization information request from the visited MME; based on information in the identified policy, determining, at the visited Diameter edge agent, acceptance of the mobile station to use the visited network, wherein the information in the identified policy includes an acceptance of service and an indication that the mobile station is authorized to use the visited network; and in response to the determination based on the information in the policy that the mobile station is accepted to use the visited network, communicating, with the home network via a home Diameter edge agent of the home network, a request to authorize the mobile station on the visited network.