A data interlaced device and method

A technology of data and equipment, applied in the field of data interleaving technology, can solve problems such as data corruption, achieve the effects of reducing capacity, improving quality, and reducing transmission delay

Inactive Publication Date: 2004-06-02
北京润光泰力科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the interleaved data encounters sudden interference during channel transmission, a long series of continuous data will be destroyed

Method used

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  • A data interlaced device and method
  • A data interlaced device and method
  • A data interlaced device and method

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Embodiment Construction

[0025] FIG. 1 is a schematic diagram of the structure of data interleaving equipment according to the present invention. The present invention is applied to a data communication system in which microwave equipment transmits 4 E1 signals plus channel coding, as shown in Figure 1, the upper half of Figure 1 is a block diagram of the sending device of the data interleaving equipment of the present invention. The lower part of Fig. 1 is a block diagram of the receiving device of the data interleaving device of the present invention. The device for interleaving data includes a sending device and a receiving device. The sending device includes a framing unit 1, which is used to enter 4-way E1 data and frame header information into the framing unit 1 to synthesize a data stream; an FEC encoding unit 2. It is used to encode the data stream output by the framing unit 1, and the frame header of each frame does not participate in encoding; the interleaving unit 3 is used to interleave th...

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Abstract

The invention discloses the apparatus and process for data interweaving, wherein the apparatus comprises a group frame unit, an FEC encoding unit, an interweaving unit, a modulation transmission unit, a demodulation synchronization unit, a de-interweaving unit and a de-framing unit. The said method comprises interweaving the transmitted data, de-interweaving, interweaving in each of the data block, and adding the frame header output. The invention can reduce code error and improve the quality for data transmission.

Description

Technical field: [0001] The present invention relates to data communication technology, in particular to data interleaving technology used in conjunction with forward error correction technology in data communication system. Background technique: [0002] When digital signals are transmitted on an actual channel, errors will inevitably occur in the received digital signals due to the unsatisfactory channel transmission characteristics and the influence of additive noise. In order to achieve a certain bit error rate under the condition of known signal-to-noise ratio, the baseband signal should be reasonably designed, the modulation and demodulation methods should be selected, and the frequency domain equalization and / or time domain equalization should be adopted to reduce the bit error rate as much as possible. However, if the bit error rate still cannot meet the requirements, channel coding, that is, error control coding, must be used to further reduce the bit error rate to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/27H04L25/14
Inventor 肖涛
Owner 北京润光泰力科技发展有限公司
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