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Method and system for detecting link failure

A technology of link failure and detection method, applied in the field of communication

Active Publication Date: 2012-07-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009]The system regularly starts the test method, and the test will be carried out when the test is not needed, which will cause unnecessary increase in the system flow and cannot be started in time when the failure occurs test
Sometimes the fault lasts for a long time, and sometimes it occurs randomly. For the location of uncertain faults, this timing start test method cannot meet the location requirements.

Method used

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  • Method and system for detecting link failure
  • Method and system for detecting link failure
  • Method and system for detecting link failure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The link quality parameter detected in this embodiment is only the bit error rate of the system physical layer, and the threshold value of the quality parameter of the physical layer bit error rate is set to 2%, and the set trigger rule is: the bit error rate of the physical layer is greater than or equal to the set When the threshold value is fixed, a loopback test is initiated, so that the physical layer bit error rate information can be stored and compared periodically, for example, the system sets the physical layer bit error rate to be detected once per minute and Compared with the set threshold value of 2%, when the average value of the bit error rate of the physical layer of the system is detected to be greater than or equal to the preset threshold value of 2%, the system automatically initiates a loopback test on the link, and the loopback The test instructions are as follows:

[0038] Such as figure 2 As shown, the loopback system can include a voice processing...

Embodiment 2

[0044] The link quality parameters detected in this embodiment are the number of fault alarms of the application layer and the bit error rate of the physical layer. The system sets the threshold value of the number of fault alarms of the application layer to be 5 times per minute. The threshold value of the quality parameter is 2%, and the preset trigger rule is that when the number of fault alarms and the bit error rate of the physical layer are greater than or equal to the threshold value set correspondingly, a loopback test is initiated, so the The number of application layer failure alarms and the physical layer bit error rate can be stored and compared periodically, when it is detected that the number of application layer failure alarms of the system is greater than or equal to the preset threshold value within one minute of the set period 5 times, and the average bit error rate of the physical layer of the system within one minute is greater than or equal to the preset th...

Embodiment 3

[0047] The link quality parameters set in this embodiment may include: the number of failure alarms of the application layer, the bit error rate of the physical layer, the packet loss rate of the link layer, and the system response sets the threshold value of the number of failure alarms to 5 times per minute. The threshold value of the physical layer bit error rate quality parameter is 2%, and the link layer packet loss rate quality parameter threshold value is 3%. The preset trigger rule is: any two of the above link quality parameters are greater than or equal to their When the corresponding quality parameter threshold value is reached, a loopback test is initiated, so,

[0048] The application layer failure alarm times information and the physical layer bit error rate can be stored and compared periodically, when it is detected that the system application layer failure alarm times is greater than or equal to the preset threshold in each minute of the set period The limit v...

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Abstract

The invention discloses a method and a system used for link failure detection. By a failure detection triggering mechanism, a physical layer of the system or the upper layer link state thereof is used as a criterion; conditions used for deciding whether a circulating test is started or not are carried out according to a certain given standard threshold value; when conditions are complied with, the system automatically loads a positioning circulating test program, failure positioning of the current link is carried out, therefore, the method and the system have extremely good real-time characteristic and completeness, can greatly save the maintenance cost during positioning the link failure, can reduce the manpower investment and time investment, can meet the requirement of the user on real-time characteristic for positioning the failure, and can improve the customer satisfaction.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for link fault detection. Background technique [0002] In the wireless access system of the wireless communication system, the communication link is often subject to various interferences, and the system itself may also have potential fault defects. etc.), it must be able to accurately test the link in real time without affecting the business, and accurately locate the cause (or location) of the failure in the system, so that the system itself and the peripheral equipment of the system (such as external transmission equipment etc.) to improve. [0003] At present, the test technologies used in the wireless access system mainly include the test technology of manual participation and the test technology of timing polling. [0004] In the way of manual participation to start and execute the link quality test and locate the link fault test method, it can be divided in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04B17/00H04B17/309
Inventor 赵国伟朱健
Owner HUAWEI TECH CO LTD
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