Turbo decoding device and method

A decoding device and decoding technology, applied in the field of turbo decoding devices, can solve the problems of excessive memory space, low decoding performance, occupation and the like

Active Publication Date: 2017-05-24
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a turbo decoding device and method to solve the shortcomings of the prior art that occupy too much memory space and low decoding performance;

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  • Turbo decoding device and method
  • Turbo decoding device and method

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0058] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0059] refer to figure 1 , a turbo decoding device, including,

[0060] The first decoder SISO#0 decodes and o...

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Abstract

The present invention relates to the technical field of electronic communication and particularly relates to a turbo decoding device. The device comprises a first decoding unit which carries out decoding and outputs a first log-likelihood ratio under the input of an information sequence, a first check sequence and a first prior sequence, a second decoding unit which carries out decoding and outputs a first log-likelihood ratio under the effect of a second check sequence, a second prior sequence and an interwoven information sequence, and a decision unit which makes a decision according to the first log-likelihood ratio and a deinterwoven second log-likelihood ratio so as to output a decoding result. According to the turbo decoding device, the memory size can be reduced, the terminal power consumption and hardware resources are saved, the decoding delay is reduced, the decoding performance is good, and the complexity is low.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to a turbo decoding device and method. Background technique [0002] Turbo codes provide high reliability of transmission in noisy channels. It can approach the Shannon limit to the maximum extent through the iterative decoding method of the maximum a posteriori probability decoder. Turbo codes are used as their codes in many communication applications. The standard of decoding, the decoder of the traditional Turbo code is a feedback serial decoder, and the two sub-decoders work alternately and alternately, and decode the received soft bits sequentially. For each sub-decoder, its Decoding has a priori information input, source information input and verification information input. By decoding the received soft bits in sequence, as the iterative process continues, the confidence of the prior information continues to increase, and finally The limit of convergence is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/27
Inventor 李俊强仲崇祥
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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