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Information transmission apparatus, information transmission method, information apparatus and method thereof

An information transmission device and information transmission technology, which are applied in the directions of error detection by signal space coding, error detection by redundant codes, transmission systems, etc., can solve problems such as the reduction of transmission characteristics of bit error rate and the like

Inactive Publication Date: 2004-04-14
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, if an encoding process is followed by signal point mapping based on a predetermined multi-value modulation technique, it is not possible to exactly match the tolerance to noise of the decoded data with the tolerance to noise found by the mapping
As a result, transmission characteristics including bit error rate degrade

Method used

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  • Information transmission apparatus, information transmission method, information apparatus and method thereof
  • Information transmission apparatus, information transmission method, information apparatus and method thereof
  • Information transmission apparatus, information transmission method, information apparatus and method thereof

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Embodiment Construction

[0044] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] This embodiment implements a data transmission and reception system applied to a channel model, in which digital information is encoded by a transmission device not shown in the figure, and then the output of the transmission device is sent to a transmission line not shown in the figure through a transmission line with noise. The receiving device shown in. In the data transmitting and receiving system, the transmitting device can form a code having a larger transmission rate by using a code having a smaller transmission rate which will be described later. The transmission device performs decoding processing, which changes the concept of the existing signal point mapping method. On the other hand, the reception device of the data transmission and reception system easily decodes the code that has been encoded by the transmission device wit...

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Abstract

It is possible to easily realize a high-performance encoding in which design flexibility is significantly increased. In a data transmission / reception system, a transmission apparatus 10 includes converters 110, 111, 112 for converting information bit strings b0, b1, and b2 into encoding strings x0, x1, and x2 consisting of M numeric values, three multipliers 120, 121, 122 for multiplying the encoding strings x0, x1, and x2 obtained by the converts 110, 111, 112 with constants a0, a1, and a2, an adder 130 for adding the constant-multiplied encoding strings a0x0 and a1x1 obtained by the multipliers 120, 121 for the respective elements, and an adder 131 for adding the addition encoding string a0x0 + a1x1 obtained by the adder 130 to the constant-multiplied encoding string a2x2 obtained by the multiplier 122, and a transmitter 14 for transmitting the addition encoding string g obtained by this adder 131 as a transmission signal g'.

Description

technical field [0001] The present invention relates to an information sending device and an information sending method for converting the format of information into a predetermined format and for sending information having a predetermined format, and also relates to an information receiving device and an information receiving method for A signal including a code sequence and predetermined noise added to the code sequence is received from the information transmitting means. Background technique [0002] In recent years, intensive research has been conducted in communication fields such as mobile communications and outer space communications, and broadcasting fields such as terrestrial wave broadcasting and satellite digital broadcasting. As such research proceeds, other research is being conducted in the field of coding to increase the efficiency of error correction coding and decoding processes. [0003] As a theoretical limit of the communication line coding performance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/10H03M13/03H03M13/25H03M13/29H03M13/35H03M13/45H04B14/04H04L1/00H04L27/04H04L27/38
CPCH04L1/0066H03M13/6362H03M13/6337H04L1/0055H03M13/253H04L1/0071H04L1/0068H03M13/35H03M13/3905H04L1/006
Inventor 铃木三博小林麻里
Owner SONY CORP