REDUCED MESSAGING TO THE UDM DURING AN AMF HANDOVER
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United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Aug 1, 2023
filing date -
Aug 1, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
An access and mobility management function (AMF) configured to obtain subscriber profile information without sending a get message and a subscribe message to a unified data management node (UDM) is described herein. The AMF is a new AMF that receives a registration request as part of a handover from an old AMF and receives user equipment (UE) context information from the old AMF. Without sending a get message to the UDM, the AMF obtains subscriber profile information by either fetching the subscriber profile information from an unstructured data storage function (UDSF) shared by a pool of AMFs, when the UDSF is available, or receiving the subscriber profile information from old AMF, when the UDSF is not available. Also, without sending a subscribe message to the UDM, the AMF receives notification of changes to the subscriber profile information from the UDM.
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