Method and system of reducing error code of service

Abstract

The invention discloses a method and a system for reducing service error code, which comprises a detection control module adapted to collect and process the pointer adjustment times and calculate the frequency offset value between synchronous digital hierarchy equipment, then compare the calculated frequency offset value with several fixed frequency offset threshold values to obtain the current frequency offset range, and output the frequency offset range to a tributary signal dither elimination module; a tributary signal dither elimination module adapted to de-twit the low-speed tributary signal according to the frequency offset range transmitted from the detection control module, to allow the normal control signal to pass within the permitted low frequency range and provide higher attenuation to the dither signal with higher frequency, thereby ensuring the qualified dither parameter of the output tributary signal. The invention can adjust in time the dither elimination circuit of the lower tributary path in SDH equipment based on the frequency offset situation of the network, so as to efficiently reduce the error code due to over-standard frequency offset in the signal processing circuit.

Description

Technical field [0001] The present invention relates to transmission service processing in communication equipment, in particular to a method and system for reducing service error codes. Background technique [0002] Modern society is increasingly dependent on communication. Interruption of communication will harm the interests of users. However, due to environmental and human reasons, equipment running on the network is inevitably subject to various interferences and influences, resulting in bit errors or even errors. Long-term business interruption. In order to ensure the quality of service, communication equipment adopts various technical means to improve the adaptability of the equipment and protect the business from being affected. If there is an unavoidable impact, the impact must be minimized. At present, transmission equipment generally adopts SDH (Synchronous Digital Series) technology. This technology has many advantages over the previous PDH (Pseudo-Synchronous Digital...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method and system for reducing service bit errors, which solves the problem that when the frequency offset between SDH network equipment increases to an abnormal range, the branch processing circuit continuously slips and causes a large number of bit errors It can detect the frequency deviation in the network in real time, adjust the branch filter circuit in time, and ensure that the bearing service minimizes service damage

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