T-Mobile USA, Inc. (20250071711). STORING AUTHENTICATION DATA ON AUSF

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STORING AUTHENTICATION DATA ON AUSF

Organization Name

T-Mobile USA, Inc.

Inventor(s)

Subramania Kaushik of Bellevue WA (US)

Anil Kumar Mariyani of Ashburn VA (US)

STORING AUTHENTICATION DATA ON AUSF

This abstract first appeared for US patent application 20250071711 titled 'STORING AUTHENTICATION DATA ON AUSF

Original Abstract Submitted

techniques for authenticating user equipment (ue) in a fifth-generation (5g) network are discussed herein. a ue can connect with a 5g network and can send a registration request to an authentication server function (ausf) of the network. the ausf can request multiple authentication vectors from a unified data management (udm) function, which can use a 5g-aka (authentication and key management) procedure to generate authentication vectors. the ausf can receive and store a subset of the authentication vectors at the ausf (or another location) and can forward an authentication vector to an access and mobility management function (amf) to subsequently authenticate the ue. later, when the ue leaves the 5g network (e.g., because of a handover) and returns to the 5g network, the ausf can re-authenticate the ue without additional signaling to the udm to generate or otherwise determine additional authentication vectors, thereby saving additional signaling in the core network.