№ lp_2_3_23719
Year: 2020
Region / City: Global
Subject: Telecommunications
Document Type: Change Request
Organ / Institution: 3GPP TSG-CT WG4
Author: ZTE, Ericsson, Nokia, Nokia Shanghai Bell, Samsung
Target Audience: Telecommunications professionals and engineers
Period of Validity: N/A
Approval Date: 2020-10-26
Date of Modifications: N/A
Category: F (correction)
Release: Rel-16
Work Item Code: eNS
Summary of Change: Define a new service operation – RelocateUeContext for the initial AMF to request the target AMF to relocate a UE context, during an EPS to 5GS handover procedure with AMF re-allocation.
Consequences if not approved: The N2 SM Info sent by SMF to initial AMF cannot be forwarded to the target AMF thus finally not able to reach NG-RAN, during EPS to 5GS handover procedure with AMF re-allocation.
Clauses Affected: 5.2.2.1, 5.2.2.2.3.1, 5.2.2.2.x(new), 6.1.3.1, 6.1.3.2.4.1, 6.1.3.2.x(new), 6.1.6.1, 6.1.6.2.41, 6.1.6.2.x1(new), 6.1.6.2.x2(new), 6.1.8, A.2
Context Description: The document defines a change request to add a new service operation for transferring N2 SM information from the source SMF to the target AMF in the EPS to 5GS handover procedure.
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