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Single carrier transmission system able to adapting change of dynamic environment and its method

A technology of transmission system and transmission method, which is applied in the field of reliable single-carrier transmission system, and can solve the problems of long data duration field synchronization signal, difficulty in synchronization and channel estimation, etc.

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

[0017] However, the duration of the data is very long and the field synchronization signal does not pass through the FEC unit, so it is not easy for the transmitting end and the receiving end to obtain synchronization and channel estimation between them in a dynamic environment where frequent changes occur in the channel

Method used

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  • Single carrier transmission system able to adapting change of dynamic environment and its method
  • Single carrier transmission system able to adapting change of dynamic environment and its method
  • Single carrier transmission system able to adapting change of dynamic environment and its method

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Embodiment Construction

[0028] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0029] Figure 4 is a view schematically showing a digital broadcast transmission system according to the present invention. refer to Figure 4 , the digital broadcast transmission system includes a scrambler 100, a forward error correction (FEC) unit 110, a multiplexer (MUX) 120, an area determination unit 130, a pilot insertion unit 140, a modulation unit 150 and a radio frequency ( RF) converter 160. The FEC unit 110 includes a Reed-Solomon (RS) encoder 111 , a block interleaver 113 and a trellis encoder 115 . The area determination unit 120 has a counter 131 .

[0030] Figure 5 is showing Figure 4 A flow chart of a digital broadcast transmission method in a digital broadcast transmission system. Hereinafter, the operation of the single carrier transmission system according to the present invention will be described in detail...

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Abstract

A single carrier transmitting system adaptable to a dynamic environment change and a method thereof are provided to easily keep up with frequent changes of a channel in a dynamic environment. A scrambler(100) randomizes transmitting data signals. An FEC(Forward Error Correction) unit(110) corrects a bit error of an inputted data stream. A domain dividing unit(120) searches the data stream corrected by the FEC unit with counting the number of symbols of the corrected data stream. The domain dividing unit divides the data stream into a plurality of domains based on the counted value. A PN(Pseudo Noise sequence) information generator generates PN information which is synchronous information for synchronization between a transmitting side and a receiving side. A multiplexer(130) inserts the PN information between the divided data streams.

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...

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Application Information

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IPC IPC(8): H04N7/015H03M13/00H03M13/03H04L27/34
CPCH04L25/03019H04L2025/03382
Inventor 郑晋熙
Owner SAMSUNG ELECTRONICS CO LTD