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Bit error probability estimating system and related method thereof

A technology of error rate and power, applied in the direction of transmission system, baseband system components, error detection/prevention using signal quality detector, etc., can solve the problem of less calculation and achieve the effect of saving power consumption

Inactive Publication Date: 2007-02-21
MEDIATEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] One of the main purposes of the present invention is to provide a bit error rate estimation system and related method requiring less computation to solve the above-mentioned problems

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  • Bit error probability estimating system and related method thereof
  • Bit error probability estimating system and related method thereof
  • Bit error probability estimating system and related method thereof

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Embodiment Construction

[0031] The present invention provides a low-complexity method and system for estimating bit error rates. According to the present invention, the bit error rate estimation system can calculate the bit error rate through a mathematical model with less complexity, and even the correction mechanism of the present invention can take into account different equalizer design methods; further, the bit error rate The elasticity and robustness of estimation and correction are very suitable for EGPRS communication system or any other mobile communication system, such as GSM communication system.

[0032] Mathematical model derivation process of the present invention is as shown in following equation:

[0033] E [ BEP ] = E [ 1 1 + e a - 1 ...

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Abstract

According to the claimed invention, a bit error probability (BEP) estimating system and method for determining the BEP of a received signal are disclosed. The BEP estimating system includes: a soft equalizer for generating a plurality of soft outputs according to the received signal; a calibration apparatus for deriving a first parameter and a second parameter, wherein the second parameter is relative to the first parameter; and a computing module, coupled to the soft equalizer and selectively coupled to the calibration apparatus, for determining the BEP according to the soft outputs, the first parameter, and the second parameter.

Description

technical field [0001] The invention relates to an enhanced GPRS (EGPRS) system and its related method, especially a bit error rate estimation system and its related method applied to the EGPRS system. Background technique [0002] The performance of mobile or wireless communication systems in digital communication is limited by non-ideal transmission channels, and in non-ideal transmission channels, factors such as multipath propagation, fading environment, inter-symbol interference and burst noise will be possible Cause a certain degree of transmission error. [0003] In the EGPRS communication system, the bit error rate is an important basis for expressing transmission performance. Each group of radio link control (RLC) blocks on the EGPRS system is based on nine standard modulation and coding mechanisms (ie MCS-1, MCS-2, MCS-3, MCS-4, MCS-5 , MCS-6, MCS-7, MCS-8 and MCS-9) for encoding and modulation, and in order to optimize the output performance, the EGPRS system pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02H04L25/06H04L1/20H04B1/707
CPCH04B17/005H04B17/345
Inventor 郭俊明黄合淇
Owner MEDIATEK INC