A registration method and device for user equipment ue

A technology for user equipment and registration messages, applied in security devices, wireless communications, electrical components, etc., can solve problems such as out-of-sync security context, process failure, and failure of the core network to know the process, so as to avoid registration failure and information unequal effect

Active Publication Date: 2022-04-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, according to the existing 3GPP (3rd Generation Partnership project, 3rd Generation Partnership Project) processing method, there will be a situation where multiple devices have partial interaction with the UE. During the redirection process through the NG-RAN base station, the core The internal network cannot know the situation of the process that has been carried out
The authentication information and security context between the 5G core network and the UE may be out of sync, causing the process to fail in some cases

Method used

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  • A registration method and device for user equipment ue
  • A registration method and device for user equipment ue
  • A registration method and device for user equipment ue

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Embodiment Construction

[0109] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0110] refer to figure 1 , showing the flow chart of NG-RAN redirection in the existing registration process.

[0111] like figure 1 As shown, when an AMF receives a registration request, the AMF may need to reroute the registration request to another AMF. At this point, the initial AMF may initiate the redirection process by sending a REROUTE NASREQUEST message to the NG-RAN base station node. The NG-RAN base station node, if supported, re-routes the initial UE message to the AMF indicated by the AMF Set ID (Set ID) IE.

[0112] The specific rerouting request message is described as follows:

[0113]

[0114] refer to figure 2 , shows the existing redirection-based UE registration flow chart, which may specifically inc...

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Abstract

Embodiments of the present invention provide a registration method and device for user equipment UE, including: the NG-RAN base station receives the registration request message sent by the UE; the NG-RAN base station uses the registration request message to send the initial UE message to the initial AMF; NG-RAN The RAN base station receives the rerouting request message returned by the initial AMF for the initial UE message; the rerouting request message includes state parameters; the NG-RAN base station uses the state parameters and the initial UE message to generate a target UE message; the NG-RAN base station sends the target UE message Send to the target AMF; the target AMF uses the target UE message to generate a registration acceptance message, and sends the registration acceptance message to the NG-RAN base station; the NG-RAN base station sends the registration acceptance message to the UE. This avoids information asymmetry between the UE and the AMF that may be caused by the uncertainty of the completed process, thereby avoiding the situation of registration failure.

Description

technical field [0001] The present invention relates to the technical field of registration, and in particular, to a registration method for user equipment UE and a registration device for user equipment UE. Background technique [0002] During the attachment process, after the initial UE message is sent to the AMF (Access and Mobility Management Function) network element of the core network due to the slice selection of the base station and other reasons, the AMF, due to the isolation of slices, The initial UE message is sent back to the base station NG-RAN (Next Generation Radio Access Network, next generation radio access network) by rerouting the NAS (Non-access stratum, non-access stratum) request. And based on the redirection of the NA-RAN base station, it is sent to the new AMF for processing. [0003] However, according to the existing 3GPP (3rd Generation Partnership project, 3rd Generation Partnership Project) processing method, there may be cases where multiple d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/06H04W60/00
CPCH04W12/06H04W60/00
Inventor 吴鹏程
Owner DATANG MOBILE COMM EQUIP CO LTD
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