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Failure detection method, system and TDM veneer

A fault detection, single-board technology, applied in the transmission system, digital transmission system, multiplex communication, etc., can solve the problems of no detection mechanism, affecting the reliability of data transmission, and failure to find faults in time, so as to improve reliability Effect

Active Publication Date: 2009-08-19
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Under the time-division multiplexing system, there is no detection mechanism in the prior art. When the chip on the TDM board fails, the fault cannot be found in time, which affects the reliability of data transmission.

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  • Failure detection method, system and TDM veneer
  • Failure detection method, system and TDM veneer
  • Failure detection method, system and TDM veneer

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Embodiment Construction

[0027] According to the principle of time division multiplexing, the TDM switching chip divides the time provided for each high-speed channel to transmit information into several time slots. When there is information to be transmitted, it allocates a time slot for the information. In this time slot, the data occupies the high-speed channel for transmission. .

[0028] There are usually multiple TDM switch chips on a TDM board in the circuit domain. Multiple high-speed channels are installed on one TDM switch chip, and the time allocated for each high-speed channel to transmit information is divided into several time slots. If a time slot fails, it will affect the information transmission of the TDM switching chip corresponding to the high-speed channel, and then affect the information transmission on the entire TDM board.

[0029] In order to find faults in time and improve the reliability of data transmission under the time-division multiplexing system, the embodiment of the ...

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Abstract

The embodiment of the invention provides a fault detection method, a system thereof and a time division multiplexing veneer, which relate to the field of fault detection and solve the problem that a time division multiplexing network does not have a fault detection mechanism. The fault detection method comprises the steps of sending detection signals at a source timeslot; receiving the signals at a target timeslot to be detected; judging whether the signals received at the target timeslot to be detected are the same as the signals sent at the source timeslot or not; if not, determining that a high speed channel is in fault at the target timeslot to be detected. The technical proposal is applicable to time division multiplexing networks.

Description

technical field [0001] The invention relates to the field of fault detection, in particular to a fault detection method, system and time-division multiplexing single board. Background technique [0002] TDM (Time Division Multiplex, time division multiplexing) switch chip divides the time provided for each high-speed channel to transmit information into several time slots according to the principle of time division multiplexing. When there is information to be transmitted, time slots are allocated for information. In the time slot, the data occupies the high-speed channel to transmit information. [0003] A circuit domain TDM board is usually equipped with multiple TDM switching chips. To improve work efficiency, these chips are connected in a cascaded manner to jointly complete the services of the board. [0004] The inventor finds that there are at least the following problems in the prior art: [0005] Under the time-division multiplexing system, there is no detection m...

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Application Information

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IPC IPC(8): H04J3/14H04L1/00
CPCH04J3/14
Inventor 耿鹏飞白琨李海伟潘玉园
Owner HUAWEI TECH CO LTD