Channel decoding method, device and distributed decoder

A channel decoding and decoding device technology, applied in wireless communication, digital transmission system, network topology and other directions, can solve the problems of high overhead and high consumption of NodeB processing performance, reduce the number of deployments, avoid processing overhead, Configure flexible effects

Active Publication Date: 2019-04-12
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In the existing technology, NodeB generally uses VA decoding. In order to obtain better decoding performance, PLVA can be deployed. However, due to the high overhead of PLVA algorithm, if it is deployed on NodeB, the processing performance of NodeB will be greatly consumed.

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  • Channel decoding method, device and distributed decoder
  • Channel decoding method, device and distributed decoder
  • Channel decoding method, device and distributed decoder

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Embodiment Construction

[0043] 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. It should be understood that the described embodiments are only some of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] The method, device, and distributed decoder in the embodiment of the present invention can be implemented by radio access network equipment, and the radio access network equipment includes but is not limited to any of the following or more than one common implementation, such as a base station NodeB or The radio network controller RNC or the control node of other access network equipment. In this embodiment of the...

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Abstract

Embodiments of the present invention disclose a channel decoding method, device and distributed decoder. A device for channel decoding, comprising: a decoding information acquisition unit for acquiring demodulation information of a channel; a channel decoding algorithm unit for decoding the demodulation information to obtain current decoding information, and decoding the current decoding information The information is subjected to cyclic redundancy check CRC check to obtain the current decoding CRC check result; the lower-level decoding determination unit is used to determine if the current decoding CRC check result is wrong, and there is a lower-level channel decoding device, then determine that the lower-level decoding The channel decoding device continues to decode the demodulation information; wherein, the decoding performance of the channel decoding algorithm unit in the subordinate channel decoding device is better than the decoding performance of the channel decoding algorithm unit in the channel decoding device. The embodiment of the present invention also discloses a channel decoding method and a distributed decoder.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular, to a channel decoding method, device and distributed decoder. Background technique [0002] Common channel decoders include a Viterbi Algorithm (Viterbi Algorithm, VA) decoder and a List Viterbi Algorithm (List Viterbi Algorithm, LVA) decoder. [0003] Ordinary VA decoder selects the optimal path from all possible paths in the trellis graph, and outputs the information sequence corresponding to the optimal path as the decoding result; LVA decoder is a (CyclicRedundancy Check, CRC) Decoder of the enhanced Viterbi decoding algorithm for assisted judgment, the basic principle is to output the decoding sequences corresponding to multiple candidate paths, perform CRC checks on these decoding sequences respectively, and select the CRC check The correct decoding sequence is used as the final decoding result. If the decoding sequences corresponding to all paths fail...

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/00H04L1/0045H04L43/0823H04W24/10H04W84/045
Inventor 唐欣李明魏岳军熊杰
Owner HUAWEI TECH CO LTD
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