Method and device for identifying error code in digital optical fiber transmission and repeater
A technology of digital optical fiber and identification method, which is applied in the field of communication, can solve the problems of high cost, poor real-time performance, and large resource consumption, and achieve the effect of simple method, strong real-time performance, and low resource consumption
Inactive Publication Date: 2013-12-18
SHENZHEN WINHAP COMM
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[0004] The purpose of the embodiments of the present invention is to provide a method for identifying bit errors in digital optical fiber transmission, which aims to solve the problems of large resource consumption, high cost, and poor real-time performance in the prior art
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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0032] In the embodiment of the present invention, by performing real-time detection and judgment on the currently received synchronous signal, bit errors in signal transmission are discovered in time, the method is simple, the resource consumption is low, and the real-time performance is strong.
[0033] figure 2 The implementation process of the identification method for digital optical fiber transmission errors provided by the first embodiment of the present invention is shown, and the details are as follows:
[0034] In step S201, it is detected whether the currently received synchronization ...
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The invention is applied to the filed of communications and provides a method and a device for identifying an error code in digital optical fiber transmission and a repeater. The method comprises the following steps of: detecting whether the currently received synchronizing signal is a superframe frame header signal; if so, detecting whether the period of the received superframe frame header signal is the same as that of the transmitted superframe frame header signal; and if so, judging that the signal transmission is normal, otherwise judging that the error code occurs in the signal transmission. In the method, by detecting and judging the currently received synchronizing signal, the error code occurred in the signal transmission is timely discovered, and the damage to radio frequency devices caused by over-high signal power due to the error code in the transmission is avoided. The method and the device for identifying the error code in the digital optical fiber transmission and the repeater have the advantages of simple method, low resource consumption, and strong real-time property.
Description
technical field [0001] The invention belongs to the field of communication, and in particular relates to a method, a device and a repeater for identifying code errors in digital optical fiber transmission. Background technique [0002] In the digital optical fiber repeater, the structure of the digital intermediate frequency part of the digital optical fiber repeater is as follows: figure 1 As shown, the processing process of the downlink signal is as follows: the radio frequency signal (RF) of the near-end machine is converted into an intermediate frequency signal (IF) through down-mixing, and the intermediate frequency signal is converted into a digital signal after being sampled by A / D and enters the FPGA. Internally carry out digital down conversion (DDC), shaping filter (FIR), and then convert it into a signal specified by the CPRI protocol and send it to the optical module (SFP). The optical module converts the signal into an optical signal and transmits it to the remo...
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IPC IPC(8): H04B10/25H04B10/07H04B10/075
Inventor 孙庆新
Owner SHENZHEN WINHAP COMM