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High order transmission channel correcting system

A transmission channel, advanced technology, applied in the field of correction system, can solve the problem of high calculation cost

Inactive Publication Date: 2008-07-02
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Computational costs are also high in MMSE-DFE, so it cannot be used in data transmission channels with high transmission channel order L

Method used

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Embodiment Construction

[0039] A system for calibrating high-order transmission channels, including a data memory, a corrector rotation unit, a pre-filter rotation unit, and a count judgment unit, wherein:

[0040] A data memory for storing channel parameters;

[0041] A calibrator rotation unit, configured to perform a rotation operation to obtain an adjustment coefficient of the calibrator;

[0042] A pre-filter rotation unit, configured to perform a rotation operation to obtain an adjustment coefficient of the pre-filter;

[0043] The counting judging unit is used for counting and judging the times of rotation and row shifting.

[0044] Combine below Figure 4 The functions and operations of each unit of the system in the embodiment are described in detail.

[0045] Step 110, the receiver R receives the received data Xk in the received data packet;

[0046] The received data X k The data packet blocks are transmitted on the time slots of the time division multiple access transmission system. ...

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Abstract

The invention provides a system for correcting a transmission channel with high series, which consists of a data memory used for storing a channel parameter, a corrector rotation unit used for carrying out rotating operation to obtain an adjustment coefficient of the corrector, a pre-filter rotation unit used for carrying out rotating operation to obtain the adjustment coefficient of the pre-filter and a counting judgment unit used for calculating and judging times of the rotation and a row shift. The system of the invention can reduce calculating cost for determining a single coefficient and allow the current filter and corrector to be used for correcting the transmission channel with high series.

Description

technical field [0001] The invention relates to a correction system including a filter and a corrector in the process of receiving data. Background technique [0002] The transmission channel model between the sender S and the receiver R in the communication system, such as figure 1 As shown, the sender S will send data or send a signal S k After having channel coefficient h k The transmission channel H is output to the model adder, and a noise signal n is input to the adder k , the aforementioned two signals are input to the receiver R at the same time. Among them, the noise signal n k is additional with variable σ n 2 The white Gaussian noise of , and the white Gaussian noise and the transmitted signal S k is irrelevant. [0003] Then, the signal X received by the receiver R k can be expressed by the following formula, namely [0004] X k = Σ i = 0 ...

Claims

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Application Information

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IPC IPC(8): H04L25/03
Inventor 郑佩
Owner ZTE CORP
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