Patent ID: 11968642
Assignee: T-MOBILE INNOVATIONS LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A Fifth Generation (5G) wireless communication network that serves a User Equipment (UE) to deliver UE status information for the UE upon request, the wireless communication network comprising:
an Access and Mobility Management Function (AMF), a Unified Data Management (UDM), and a Unified Data Registry (UDR);
the AMF configured to:
exchange registration signaling with the UE; and
responsively exchange authentication signaling for the UE with the UDM;

the UDM configured to:
exchange the authentication signaling with the AMF; and
responsively transfer a UDM request for the UE status information for the UE to the AMF;

the AMF configured to:
exchange network signaling with the UE;
determine the UE status information for the UE;
receive the UDM request for the UE; and
transfer the UE status information for the UE to the UDM in response to the UDM request;

the UDM configured to:
receive the UE status information from the AMF; and
transfer the UE status information to the UDR; and

the UDR configured to:
receive the UE status information from the UDM;
receive a status request for a time of last radio contact with the UE from an Application Function (AF); and
responsively transfer the time of last radio contact with the UE to the AF.