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Registration method and device of user equipment (UE)

A technology for user equipment and registration messages, applied in security devices, electrical components, wireless communication, etc., can solve the problems of asynchronous security context, process failure, and the core network cannot know the process, so as to avoid registration failure and avoid information unequal effect

Active Publication Date: 2021-06-25
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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  • Registration method and device of user equipment (UE)
  • Registration method and device of user equipment (UE)
  • Registration method and device of 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 comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0110] refer to figure 1 , shows a flowchart of NG-RAN redirection in the existing registration process.

[0111] Such as 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 can start the redirection process by sending a rerouting NAS request (REROUTE NASREQUEST) message to the NG-RAN base station node. The NG-RAN base station node, if supported, reroutes the initial UE message to the AMF indicated by the AMF Set ID (Set ID) IE.

[0112] Wherein, the specific rerouting request message is described as follows:

[0113]

[0114] refer to figure 2 , which shows an existing redirection-based UE registration flow cha...

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PUM

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Abstract

The embodiment of the invention provides user equipment (UE) registration method and device. The method comprises the following steps that an NG-RAN base station receives a registration request message sent by UE; the NG-RAN base station sends an initial UE message to the initial AMF by adopting the registration request message; the NG-RAN base station receives a rerouting request message returned by the initial AMF for the initial UE message, wherein the rerouting request message comprises a state parameter; the NG-RAN base station generates a target UE message by using the state parameter and the initial UE message; the NG-RAN base station sends the target UE message to the target AMF; the target AMF generates a registration accepting message by adopting the target UE message, and sends the registration accepting message to the NG-RAN base station; and the NG-RAN base station sends a registration acceptance message to the UE. The information mismatch between the UE and the AMF possibly caused by the uncertainty of the completed process is avoided, and the condition of registration failure is further avoided.

Description

technical field [0001] The present invention relates to the technical field of registration, in particular to a method for registering a user equipment UE and a device for registering a user equipment UE. Background technique [0002] During the attachment process, due to reasons such as the slice selection of the base station, after the initial UE message is sent to the AMF (Access and Mobility Management Function) network element of the core network, the AMF is out of slice isolation, The initial UE message will be sent back to the base station NG-RAN (Next Generation Radio Access Network, next-generation radio access network) by rerouting a 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 will be a situation where multiple d...

Claims

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Application Information

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IPC IPC(8): H04W12/06H04W60/00
CPCH04W12/06H04W60/00
Inventor 吴鹏程
Owner DATANG MOBILE COMM EQUIP CO LTD
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