Invention Publication
- Patent Title: INTER-AMF CONNECTED MODE HANDOVER OPTIMIZATION
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Application No.: US17521280Application Date: 2021-11-08
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Publication No.: US20230143182A1Publication Date: 2023-05-11
- Inventor: Anal Srivastava , Sangram Kishore Lakkaraju
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W36/08

Abstract:
A target Access and Mobility Management Function (AMF) switches the path for network traffic to a User Equipment (UE) in an inter-AMF mobility event. The target AMF obtains a path switch request from a target next generation Node B (gNB). The path switch request includes a UE identifier and a source AMF identifier. The target AMF compares the source AMF identifier with a target AMF identifier, and responsive to a determination that the source AMF identifier is different than the target AMF identifier, the target AMF provides a UE context transfer request to the source AMF. The target AMF obtains the UE context from the source AMF and processes the path switch request to update a core network path for a session of the UE. The target AMF also provides a path switch response to the target gNB.
Public/Granted literature
- US11825361B2 Inter-AMF connected mode handover optimization Public/Granted day:2023-11-21
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