Network element selection method, information transmission method, apparatuses, and network element
AssigneesChina Mobile Communication Co., Ltd Research Institute, China Mobile Communications Group Co., Ltd.
InventorsQun Gu, Aihua Li, Zhenning Huang
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Abstract
The present disclosure provides a network element selection method, and apparatus, and network elements. The method includes: selecting, by a first network element, a network slice-specific authentication and authorization function (NSSAAF) network element according to first information; wherein the first information includes at least one of the following: S-NSSAI for a network slice; a home network identifier in a subscription permanent identifier (SUPI); a data network name (DNN); a generic public subscription identifier (GPSI); a subscription permanent identifier (SUPI); an external group ID; an internal group ID; and a routing identifier.
Claims18
A network element selection method, performed by a first network element, comprising:
- selecting a network slice-specific authentication and authorization function (NSSAAF) network element according to first information;
- wherein the first information comprises at least one of the following:
- single network slice selection assistance information (S-NSSAI) for a network slice;
- a home network identifier in a subscription permanent identifier (SUPI);
- a data network name (DNN);
- a generic public subscription identifier (GPSI);
- a subscription permanent identifier (SUPI);
- a subscription concealed identifier (SUCI);
- an external group ID;
- an internal group ID;
- and a routing identifier,
- wherein before the selecting the NSSAAF network element according to the first information, the method further comprises:
- obtaining subscription information of user equipment from a third network element;
- wherein the subscription information carries target address information, and the target address information is of one or a group of authentication, authorization, and accounting (AAA) servers corresponding to the network slice.
An information transmission method, performed by a second network element, comprising:
- receiving a first request message from a first network element;
- wherein the first request message comprises first information, and the first information comprises at least one of the following:
- S-NSSAI for a network slice;
- a home network identifier in a subscription permanent identifier (SUPI);
- a data network name (DNN);
- a generic public subscription identifier (GPSI);
- a subscription permanent identifier (SUPI);
- a subscription concealed identifier (SUCI);
- an external group ID;
- an internal group ID;
- and a routing identifier;
- sending a first response message, according to the first request message, to the first network element;
- wherein the first response message comprises fully qualified domain names (FQDN) and/or address information of one or a group of NSSAAF.
An information transmission method, performed by a network slice-specific authentication and authorization function (NSSAAF) network element, comprising:
- receiving authorization request message from a first network element;
- wherein the authorization request message comprises target address information, and the target address information is of one or a group of AAA servers corresponding to a network slice requested by a user equipment.
Dependencies are inferred from the claim text.