Method, system and apparatus for accessing a visited network
AssigneeHuawei Technologies Co., Ltd.
InventorsPeng ZHANG, Wenlin ZHANG, Hai ZHANG, Chengzhen SUN
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Abstract
The present application relates to a user accessing to a visited network in a wireless telecommunication network. After receiving an access request from the user for selecting a visited network and detecting the visited network selected by the user has changed, an AAA server device initiates a request for obtaining authentication and/or authorization information of the user from a HSS. In the process of obtaining the authentication and/or authorization information, the HSS checks whether the user is authorized to access to the visited network according to a list of authorized visited networks stored in the HSS.
Claims18
A method for accessing to a visited network, comprising:
- receiving, by an authentication, authorization and accounting (AAA) server device, an access request initiated by a user for selecting a visited network, wherein the access request comprises an identifier of the visited network;
- detecting, by the AAA server device, whether the visited network selected by the user has changed according to the identifier of the visited network;
- if the visited network selected by the user has changed,
- initiating, by the AAA server device, a request for obtaining authentication and/or authorization information of the user from a home subscriber server (HSS), and asking the HSS to check whether the user is authorized to access to the visited network according to a list of authorized visited networks stored in the HSS;
- and
- receiving, by the AAA server device, a response from the HSS, wherein the response comprises a result of checking whether the user is authorized to access to the visited network.
An authentication, authorization and accounting (AAA) server device in a wireless telecommunication network, comprising:
- a receiver, configured to receive an access request initiated by a user for selecting a visited network, wherein the access request comprises an identifier of the visited network;
- and
- a processor, connected to the receiver and configured to:
- detect whether the visited network selected by the user has changed according to the identifier of the visited network;
- if the visited network selected by the user has changed,
- initiate a request, for obtaining authentication and/or authorization information of the user from a home subscriber server (HSS), and asking the HSS to check whether the user is authorized to access to the visited network according to a list of authorized visited networks stored in the HSS;
- the receiver further configured to receive a response from the HSS, wherein the response comprises a result of checking whether the user is authorized to access to the visited network.
A wireless telecommunication system, in which an authentication, authorization and accounting (AAA) server device communicates with a home subscriber server (HSS) device;
- wherein
- the AAA server device is configured to:
- receive an access request initiated by a user for selecting a visited network, wherein the access request comprises an identifier of the visited network;
- detect whether the visited network selected by the user has changed according to the identifier of the visited network;
- if the visited network selected by the user has changed,
- initiate a request for obtaining authentication and/or authorization information of the user from the HSS, and asking the HSS to check whether the user is authorized to access to the visited network according to a list of authorized visited networks stored in the HSS;
- and
- receive a response from the HSS, wherein the response comprises a result of checking whether the user is authorized to access to the visited network.
Dependencies are inferred from the claim text.