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Dual-binary system tailbaiting Turbo code coding method and apparatus

A duobinary, coding technology, applied in the field of duobinary tail-biting turbo code coding, which can solve problems such as unrealistic and lack of flexibility

Inactive Publication Date: 2007-12-05
ZTE CORP
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Problems solved by technology

However, this method has a disadvantage. For a specific coding rate, a corresponding puncturing matrix is ​​required, but in practical applications, it is often necessary to support any coding rate, so it is necessary to store a large number of puncturing matrices, which is not practical in practical applications. realistic, inflexible

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  • Dual-binary system tailbaiting Turbo code coding method and apparatus
  • Dual-binary system tailbaiting Turbo code coding method and apparatus
  • Dual-binary system tailbaiting Turbo code coding method and apparatus

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Embodiment Construction

[0059] The implementation of the technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings:

[0060] The overall structural block diagram of the present invention is shown in Fig. 6 or Fig. 7 . The hardware part is mainly composed of two parts: a dual-binary tail-biting Turbo code mother code encoder (as shown in Figure 2) and a rate matching device. The dual-binary tail-biting Turbo code mother code encoder is composed of the first component code encoder, the second component code encoder and the improved dual-binary tail-biting Turbo code internal interleaver. The rate matching device is composed of a rate matching parameter calculation unit, a data combining unit, a rate matching processing unit and a data merging unit. The duobinary tail-biting Turbo code mother code encoder encodes the input duobinary information bit sequence at a code rate of 1 / 3, and the coded output sequence is input to the rate...

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Abstract

The invention publishes the equipment and a method of double binary system for Turbo code encoding, which solve the problem that could not support any even number information block length and the random code rate in existing technology. The invention includes: The first component code encoder, the second component code encoder, the mark interweave and the speed matching device. The invention method includes the following step: the system sent the bit sequence to the first component code encoder, the mark interweave and the speed matching device; create check bit in the first component code encoder; carry on data interior exchange in the code interweaves for every other a pair of data; structure the matrix, carry on replace between each line; create two check bit in the second component code encoder; output bit sequence by the speed matching device to the system, the first component encoder and a second component encoder carries on the number rate match, so can obtain the code rate needed. Thus, it can support any even number information block length and the random code rate.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a duobinary tail-biting Turbo code encoding method and device. Background technique [0002] In the communication system, in order to improve the reliability of information transmission in the wireless channel and improve the anti-interference ability of the data on the channel, it is necessary to adopt the corresponding channel coding technology. Among many channel coding techniques, Turbo code is currently recognized as one of the best forward error correction codes. The error correction performance of Turbo code is far superior to that of other codes, and the more the number of decoding iterations, the better the performance of decoding error correction, so it is usually recommended in data transmission occasions with high reliability requirements use. For example, the third-generation mobile communication adopts 8-state 1 / 3 code rate binary Turbo code as the channel codi...

Claims

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Application Information

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IPC IPC(8): H04L1/00H03M13/27H03M13/29
Inventor 包国平徐俊胡留军
Owner ZTE CORP
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