A turbo decoding device and method

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

Active Publication Date: 2020-05-26
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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  • A turbo decoding device and method
  • A turbo decoding device and method
  • A turbo decoding device and method

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Embodiment Construction

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

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

[0058] The present invention will be further described below with reference to the drawings and specific embodiments, but it is not a limitation of the present invention.

[0059] Reference figure 1 , A turbo decoding device, which includes,

[0060] The first decoder SISO#0 dec...

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

Claims

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Application Information

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