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Method for synchronizing status of ue in a communication network

a communication network and status synchronization technology, applied in the direction of electrical equipment, connection management, assessment restriction, etc., can solve the problems of ng-ran not able to route a ue to a new amf, and the ue cannot be paged with the correct mobile identity

Inactive Publication Date: 2020-08-20
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent proposes a solution to problems where a temporary identity of a user equipment (UE) is changed over a non-ideal network, such as when the UE is in a connected state and the network access changes. By synchronizing the temporary identity of the UE and the network, the solution ensures that the UE can be paged with the correct temporary identity and routed to a new location over a different network access in case of relocation. Overall, the solution improves the reliability and stability of the network and enhances the user experience.

Problems solved by technology

First problem with the existing technology is that, UE cannot be paged with correct mobile identity when the UE is in INACTIVE state in CM-CONNECTED state and GUTI of the UE is changed over non-3GPP access.
Another problem with the existing technology is that the NG-RAN cannot route a UE to a new AMF over 3GPP access when the AMF is relocated over non-3GPP access.

Method used

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  • Method for synchronizing status of ue in a communication network
  • Method for synchronizing status of ue in a communication network
  • Method for synchronizing status of ue in a communication network

Examples

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Embodiment Construction

[0059]Exemplary aspects now will be described with reference to the accompanying drawings. The disclosure may, however, be embodied in many different forms and should not be construed as limited to the aspects set forth herein; rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey its scope to those skilled in the art. The terminology used in the detailed description of the particular exemplary aspects illustrated in the accompanying drawings is not intended to be limiting. In the drawings, like numbers refer to like elements.

[0060]It is to be noted, however, that the reference numerals in claims illustrate only typical aspects of the present subject matter, and are therefore, not to be considered for limiting of its scope, for the subject matter may admit to other equally effective aspects.

[0061]The specification may refer to “an”, “one” or “some” aspect(s) in several locations. This does not necessarily imply that each such...

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Abstract

The present disclosure relates to synchronizing a temporary identity in the UE and the network when the UE is RRC Inactive state over 3GPP access and temporary identity of the UE is changed over a Non-3GPP access in a scenario when the UE is connected to the same AMF via 3GPP and non-3GPP access.

Description

TECHNICAL FIELD[0001]The present disclosure relates to the method and system of synchronizing the status of a UE in a communication network. Specifically the present disclosure relates to synchronizing a temporary identity in the UE and the network when the UE is RRC Inactive state over 3GPP access and temporary identity of the UE is changed over a Non-3GPP access in a scenario when the UE is connected to the same AMF via 3GPP and non-3GPP access.BACKGROUND ART[0002]In 5GS both 3GPP access and Non-3GPP access is connected to AMF. A UE can be connected to a PLMN or different PLMN via 3GPP access and non-3GPP access simultaneously. The UE and the network maintain separate Registration Management context and CM state for a 3GPP access and a non-3GPP access. In case the UE is connected to the same PLMN via 3GPP access and non-3GPP access then the UE is connected to a same AMF via 3GPP access and non-3GPP access. The AMF allocates single 5G-GUTI as a temporary identifier for both RM cont...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04W8/26H04W48/20H04W76/27
CPCH04W8/26H04W48/20H04W76/27H04W68/02H04W12/08H04W12/40H04W8/065
Inventor TAMURA, TOSHIYUKITIWARI, KUNDAN
Owner NEC CORP
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