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Single carrier transmission system able to reducing signal distortion and its method

A technology of a transmission system and a transmission method, applied in the field of reliable single-carrier transmission systems, can solve problems such as unreliability of changes

Inactive Publication Date: 2007-05-30
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such transmission systems use only a single-carrier modulation method and are therefore unreliable against variations caused by bursty noise in the channel environment

Method used

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  • Single carrier transmission system able to reducing signal distortion and its method
  • Single carrier transmission system able to reducing signal distortion and its method
  • Single carrier transmission system able to reducing signal distortion and its method

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Embodiment Construction

[0035] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0036] Fig. 6 is a block diagram schematically showing a digital broadcast transmission system according to the present invention. 6, the digital broadcast transmission system includes a scrambler 100, a forward error correction (FEC) unit 110, a multiplexer (MUX) 120, a pilot insertion unit 130, an area determination unit 141, and a modulation unit 143 , A modulation information generating unit 145 and a radio frequency (RF) converter 150. The FEC unit 110 includes a Reed-Solomon (RS) encoder 111, an interleaver 113, and a trellis encoder 115.

[0037] During the synchronization data transmission, the scrambler 100 performs random operations on the transmitted data signal in order to prevent problems such as loss of synchronization signals caused by repeated numbers such as 00000000b or 11111111b during the synchronization data transmis...

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Abstract

A single carrier transmitting system capable of reducing distortion of transmission signals and a method thereof are provided to reduce distortion of transmission signals in a channel environment where a burst noise exists, and improve the receipt capability of a receiving side. A scrambler(100) randomizes transmitting data signals. An FEC(Forward Error Correction) unit(110) corrects a bit error of an inputted data stream. A section distinguishing unit(141) distinguishes between a frame synchronous section and a data section of a transmission signal. A modulator(143) modulates the distinguished sections in different single carrier methods. A modulation information transmitting unit(145) transmits information related to the modulation methods to a receiving side through the frame synchronous section.

Description

Technical field [0001] The present invention generally relates to a single-carrier transmission system and method, and more particularly, to a single-carrier transmission system and method that can improve the reliability of the signal to be transmitted. Background technique [0002] In the era of communication multimedia, computers, and broadcasting, all countries in the world have been digitizing analog broadcasting. Especially in developed countries such as the United States, Europe and Japan, digital broadcasting systems using satellites have been developed and put into practical use. With the rapid development, different countries have proposed different standards for digital broadcasting. [0003] On December 24, 1996, the Federal Communications Commission (FCC) of the United States passed the Advanced Television Systems Committee’s digital television standard as the next-generation TV broadcast standard. All terrestrial broadcast operators must comply with ATSC standards r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/02H04L27/01H04L1/00H03M13/03H03M13/00H04N7/015
CPCH04L27/361
Inventor 郑晋熙
Owner SAMSUNG ELECTRONICS CO LTD
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