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lte disaster recovery method and system

A technology of core network equipment and base stations, applied in the field of communications, can solve problems such as failure to perform disaster recovery, achieve high usability and achievability, and avoid long-term business interruption.

Active Publication Date: 2020-03-27
FUJIAN SUNNADA NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this solution, the connection is detected through the SCTP link on the NodeB. If the SCTP link is disconnected, it is considered that the connected RNC is faulty. However, if the SCTP connection between the NodeB and the RNC is normal, but other functional modules in the RNC are abnormal. , NodeB will not be able to know, and fail to achieve the effect of disaster recovery

Method used

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  • lte disaster recovery method and system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0067] Please refer to image 3 , Embodiment 1 of the present invention is: an LTE disaster recovery method, the method is based on the S1-flex function of the base station (the base station can simultaneously establish an SCTP / S1 connection with the control node MME of a plurality of core network equipment), including the following steps :

[0068] S1: At least two core network devices establish detection links with each other; that is, among more than two core network devices, each core network device establishes detection links with other core network devices.

[0069] S2: Exchanging the keep-alive message through the detection link; further, exchanging the keep-alive message through the TCP protocol, and the data field of the message is filled with a self-defined message, which is used to detect the working status of the peer core network device. For example, the message data fields are defined as follows:

[0070]

[0071] Among them, message type indicates the link ...

Embodiment 2

[0088] This embodiment is a specific application scenario of Embodiment 1.

[0089] This embodiment takes three sets of core network equipment as an example, which are respectively the first core network equipment EPC1, the second core network equipment EPC2 and the third core network equipment EPC3, and the three sets of core network equipment have established detection links among each other; 100 base stations are connected to the first core network device EPC1, numbered 1-100 respectively; 200 base stations are connected to the second core network device EPC2, numbered 101-300 respectively; 300 base stations are connected to the third core network device EPC3 The base stations are numbered 301-600 respectively. Core network devices will notify other core network devices of the number of base stations they have connected to through the detection link.

[0090] Assuming that the first core network device EPC1 is abnormal, and the third core network device EPC3 finds that the...

Embodiment 3

[0092] Please refer to Image 6 , the present embodiment is a kind of LTE disaster recovery system corresponding to the foregoing embodiments, including:

[0093] The first establishment module 1 is used to establish detection links between at least two core network devices;

[0094] Configuration module 2, configured to correspond to each core network device to configure a set of identifiers that are allowed to access the base station;

[0095] The selection module 3 is configured to select a core network device with a normal state among the remaining core network devices to respond to the corresponding base station in the identifier set of the core network device if it is determined that the state of a core network device is abnormal according to the detected link. S1 connection request.

[0096] Further, it also includes:

[0097] The sending module 4 is used for the base station to continuously send the S1 connection request including the base station identifier to each...

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Abstract

The invention discloses an LTE disaster recovery method and system thereof. The method includes: at least two core network devices establish a detection link with each other; corresponding to each core network device, an identifier set that allows access to a base station is configured; if according to the detection The link determines that a core network device is in an abnormal state, and selects a core network device in a normal state among the remaining core network devices to respond to the S1 connection request initiated by the corresponding base station in the identifier set of the core network device. The present invention cleverly uses the S1-flex function of the base station without changing the equipment network, fully utilizes the core network equipment resources, and realizes a disaster recovery mechanism with high usability and realizability.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to an LTE disaster recovery method and a system thereof. Background technique [0002] With the continuous development of mobile communication technology. LTE mobile communication, which adapts to the needs of mobile data, mobile computing and mobile multimedia operations, has gradually begun to emerge. LTE is based on the old GSM / EDGE and UMTS / HSPA network technologies. It is an upgrade of the GSM / UMTS standard. It is a transition between 3G and 4G technologies. It is the global standard of 3.9G. The access technology realizes high data rate and low delay, improves the performance of users at the edge of the cell, increases the cell capacity and reduces the system delay, and enhances the user experience. [0003] The S1 interface is the interface between the core network and the base station. The difference between the S1 interface and the Iu interface of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04
CPCH04W24/04
Inventor 范信斌
Owner FUJIAN SUNNADA NETWORK TECH CO LTD