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Method and system for unit impact response estimation of channel

A shock response and unit technology, applied in the field of mobile communications, can solve problems such as high complexity and poor system practicability, and achieve the effects of low computational complexity, improved accuracy and balanced demodulation performance, and strong system practicability

Inactive Publication Date: 2008-12-31
ZTE CORP
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  • Application Information

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Problems solved by technology

Then, the received signal is demodulated, and channel estimation is performed on the demodulated signal. This invention can be classified as the iterative channel unit impulse response estimation method, which is suitable for TDMA systems, but this method has high complexity and system Disadvantages such as poor practicality

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  • Method and system for unit impact response estimation of channel
  • Method and system for unit impact response estimation of channel
  • Method and system for unit impact response estimation of channel

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Embodiment Construction

[0036] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0037] figure 1 It is a structural block diagram of the device for estimating the channel unit impulse response in a specific embodiment of the present invention, figure 1 include:

[0038] A symbol sequence extraction module 101, configured to extract a symbol sequence from a training sequence of a received signal;

[0039] The coefficient matrix construction module 102 is used to construct the coefficient matrix, which specifically includes the training sequence matrix construction module 1021 and the coefficient matrix calculation module 1022; wherein,

[0040] The training sequence matrix construction module 1021 is used to select the standard training sequence, determine the channel dispersion length, substitute the selected standard training sequence and the determined channel dispersion length into the training sequence matrix exp...

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Abstract

The invention discloses a method for estimating unit channel impulse response; the method comprises the steps of: extracting the symbolic sequence from training sequence of received signals; constructing a coefficient matrix for estimating unit channel impulse response; conducting multiplication-and-accumulation calculation on the symbolic sequence and the coefficient matrix to get the unit channel impulse response value. The invention also discloses a system for estimating unit channel impulse response, which comprises a symbolic sequence extraction module, a coefficient matrix construction module and a multiplication-and-accumulation calculation module. The invention greatly increases the accuracy and equilibrium demodulation performance of unit channel impulse response estimation and provides a unit channel impulse response estimation proposal with low calculation complexity and high systematic practicability.

Description

technical field [0001] The present invention mainly relates to the field of mobile communication, in particular to a method and system for estimating the channel unit impulse response. Background technique [0002] In the current mobile communication field, the demodulation function of the receiver in the wireless communication system basically adopts the balanced demodulation technology. Since the channel unit impulse response is the most critical technical parameter of the balanced demodulation technology, therefore, for the wireless communication system As far as the receiver is concerned, the performance basically depends on the correctness of the channel unit impulse response estimation. [0003] In the balanced demodulation subsystem of the Global System for Mobile Communications (GSM, Global System for Mobile communication) / GSM Evolution Enhanced Data Rates (EDGE, Enhanced Data rates for GSM Evolution) system, the traditional channel estimation method uses sliding cor...

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Application Information

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IPC IPC(8): H04L25/02H04B7/26
Inventor 段庆辛胜利单淑伟
Owner ZTE CORP