Method and device for detecting error code in wireless digital communication system

A digital communication system and bit error detection technology, which is applied in the direction of error detection/prevention using signal quality detectors, can solve problems such as increased complexity of software algorithms, consumption of system resources by multiple status registers, and different initial values ​​of status registers. , to achieve the effect of simple algorithm

Inactive Publication Date: 2006-02-01
ZTE CORP
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Problems solved by technology

[0004] 1. This method is only suitable for small-scale (dozens of channels) detection. When the number of channels increases, the complexity of the software algorithm increases greatly, and the initial values ​​of the state registers for different channels are also different, so that it is impossible to obtain out the analysis result
[0005

Method used

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  • Method and device for detecting error code in wireless digital communication system
  • Method and device for detecting error code in wireless digital communication system
  • Method and device for detecting error code in wireless digital communication system

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0033] figure 1 It shows the principle of the linear feedback shift register that generates the m-sequence. The pseudo-random number of the m-sequence is a pseudo-random definite sequence. It is a pseudo-random sequence widely used at present. The m-sequence is formed by A binary sequence with the longest period generated by the shift register, it can be used as a good random source in error detection.

[0034] Table 1 shows the series sequence table of the linear feedback shift register (see the next page), and lists the characteristic polynomials of the longest output sequence that the linear feedback shift registers of different stages (that is, different numbers) can produce. Its calculation method will not be repeated here. Considering the period and length of the m-sequence, the m-sequence with the order r=15 is selected in the present invention.

[0035] f...

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Abstract

The method includes steps: generating pseudo random sequence in use for testing data; test initialization including initializing counter for error code and looping back channels needed to test in system; sending out test series in use for pseudo random sequence to pass through loop backed channels needed to test, and sustaining for certain time; acceptance test sequence in use for receiving original pseudo random test sequence, and receiving result of test sequence from loop back channel, and sustaining for certain time; sequence of comparison test in use for comparing bit by bit continuously between received result of test sequence and original pseudo random test sequence; result statistics of error code calculated from relevant error code rate based on value of counter for error code after testing is completed. Features are: neat algorithm, simple structure of equipment, capable of testing channels in large scale (thousands), using only little system resource in time of test.

Description

technical field [0001] The invention belongs to a wireless digital communication system, and in particular relates to a code error detection method and device of the wireless digital communication system. Background technique [0002] Bit error detection is a very common means of testing and locating problems in digital communication systems, especially in wireless digital communication, in order to determine the bit errors generated in the communication process, bit error detection must be carried out. There is no bit error testing function in the current wireless digital communication system, and when it is necessary to test bit errors, a bit error analyzer is usually used to measure its bit error performance. Although the BER analyzer is rich in functions, it is expensive and difficult to adapt to some system interfaces, and usually requires an external auxiliary long-line drive circuit. [0003] The Chinese patent No. 99812651.9 "Transmitter, receiver and method for gen...

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Application Information

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IPC IPC(8): H04L1/20
Inventor 王欣晖董小虎谭震
Owner ZTE CORP
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