Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for solving calling failure caused by abnormality of core network

A call failure and core network technology, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as call failure and UE call failure

Inactive Publication Date: 2012-05-23
ZTE CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In view of this, the main purpose of the present invention is to provide a method for solving call failures caused by core network abnormalities, which can solve the problem in the prior art that during the interval between two adjacent tracking area update services, MME abnormalities cause UE call failures. failure problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for solving calling failure caused by abnormality of core network
  • Method for solving calling failure caused by abnormality of core network
  • Method for solving calling failure caused by abnormality of core network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The basic idea of ​​the present invention is: when the last registered MME of the UE has exited the connection, or when the last registered MME of the UE remains connected but its MME identification code has changed, the tracking area update service is initiated in time, so that the UE re-registers in the On the MME that establishes a connection with the current eNB, and then ensures that when the UE is the called user, the MME that initiates the paging process can receive the paging response returned by the called user to complete the call.

[0038] The implementation process of the method for solving the call failure caused by the abnormality of the core network in the embodiment of the present invention is as follows: figure 2 shown, including the following steps:

[0039] Step 201: The eNB detects that the link with the MME is disconnected, and sends a paging message indicating that the MME is abnormal to all UEs accessing the cell managed by the eNB; the paging me...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for solving the calling failure caused by abnormality of a core network. The method includes the following steps: paging message for MME abnormality is sent to all UE which switches in eNB management after the MME abnormality is detected in a network element mobile management entity of the core network connected with a base station eNB; the UE confirms that the paging message for the MME abnormality is received, defines the MME abnormality registered by the UE according to the paging message, starts the updating business of a tracking area, and finishes the re-registration of the UE. The method in the invention can solve the problem in the prior art that the calling failure is caused by the MME abnormality within the interval time of two adjacent updating business of the tracking area.

Description

technical field [0001] The present invention relates to a long term evolution (LTE, Long Term Evolution) system, in particular to a method for solving call failure caused by core network abnormality. Background technique [0002] Such as figure 1 As shown, the LTE system is mainly composed of a mobile terminal (UE), a base station (eNB) and a core network element Mobility Management Entity (MME), and the eNB and MME support many-to-many connections. [0003] Wherein, the method for initiating the tracking area update service to complete the re-registration of the UE specifically includes the following steps: [0004] Step 1: UE sends a tracking area update service request to eNB; [0005] Step 2: The eNB determines whether the UE has provided the MME identification code of the last registered MME, if not provided, perform step a; if provided, perform step 3; [0006] Step 3: The eNB further determines whether the MME identification code is currently available. If it is no...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W60/04H04W64/00H04W28/08
Inventor 朱慧芬
Owner ZTE CORP