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Method and apparatus for obtaining the number of decoding error block from check-free data block

A technology for verifying data and data blocks, applied in the field of communications, can solve the problem of inability to accurately obtain the decoding block error rate of data blocks, achieve accurate measurement and reporting, and achieve simple results

Active Publication Date: 2010-10-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for obtaining the number of decoding error blocks of non-check data blocks, so as to overcome the shortcomings of the prior art that the error rate of data block decoding cannot be accurately obtained through system simulation testing, and to simply and accurately Realize the statistics of the number of error blocks decoded without parity data, and meet the measurement requirements of the number of error blocks and block error rate in the communication system

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  • Method and apparatus for obtaining the number of decoding error block from check-free data block

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Embodiment Construction

[0069] The core of the present invention is to set the decoding confidence interval according to the feature that the Euclidean distance between the channel coding and decoding results and the received data should be the smallest, and to determine the decoding block error rate by the method of maximum likelihood. Estimation is performed to obtain the number of decoding error blocks of data blocks without checksums.

[0070] Those skilled in the art know that in a communication system, the essence of channel coding is to reduce useful information data transmission, increase redundant error correction information, and increase communication reliability. The process of channel coding is to insert some symbols into the source data code stream, so as to achieve the purpose of error judgment and error correction at the receiving end. At the receiving end, the received data is demodulated, and the demodulated data is decoded to obtain the required data.

[0071] In a data frame, the...

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Abstract

The invention discloses a method to access no-checking data block decoding error block number, and according to the Hamming distance and the Euclidean distance smallest method used in the channel codec, through simulation results to set decoding confidence interval, and using the maximum likelihood method, to estimate the decoding error block rate of the data block received in the measuring cycle, therefore ultimately, obtaining a more accurate estimate of the received error frame number, and realizing the error block rate measuring function of the no-frame checking coding data block. The invention also discloses a device to access no-checking data block decoding error block number, including the configuration module, the decoding module, the encoding module, the mapping modules, the likelihood value calculation unit, the comparison module, and the error block estimated unit. The invention can simple and accurately access no-checking data block decoding error block number.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and a device for obtaining the number of decoding error blocks of data blocks without checksums. Background technique [0002] In the existing communication system, in order to better allocate and adjust resources, it is necessary to measure and report some performance parameters related to communication quality in the communication process to the resource management module, such as the RRC (wireless communication system) in the 3G communication system. The resource control) entity requires the PL (physical layer) entity to perform some air interface communication quality measurements, including measuring the important parameter of the block error rate generated during the communication process. The system usually specifies a statistics period, and statistics related to performance are performed within this period. In order to achieve the purpose of measuring the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/20
Inventor 叶恒
Owner DATANG MOBILE COMM EQUIP CO LTD
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