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

A technology of transmission system and transmission method, applied in the field of reliable single-carrier transmission system, capable of solving problems such as unreliable changes

Inactive Publication Date: 2004-05-19
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

[0036] Image 6 is a block diagram schematically showing a digital broadcast transmission system according to the present invention. refer to Image 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, a modulation unit 143, a modulation information generation unit 145 and 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 synchronous data transmission, the scrambler 100 performs random operations on transmitted data signals in order to prevent problems such as loss of synchronous signals due to repeated numbers such as 00000000b or 11111111b during synchronous data transmission. Th...

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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 thereof, and in particular to a single-carrier transmission system and method thereof capable of improving the reliability of transmitted signals. Background technique [0002] In the era of communication multimedia, computers and broadcasting, countries all over the world have been digitizing analog type 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 rapid development, different standards for digital broadcasting are respectively proposed in various countries. [0003] On December 24, 1996, the Federal Communications Commission (FCC) of the United States adopted the digital television standard of the Advanced Television Systems Committee as the broadcasting standard of the next generation TV. All terrestrial broadcas...

Claims

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Application Information

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