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Parallel soft elimination decoding method and related device

A decoding and codeword technology, applied in the field of parallel soft-cancellation decoding methods and related devices, can solve problems such as general performance, achieve high decoding performance requirements, ensure decoding performance requirements, and reduce decoding delays

Pending Publication Date: 2021-06-29
HUAWEI TECH CO LTD
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  • Claims
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Problems solved by technology

In this case, currently only BP decoding or SCAN decoding with general performance can be used to achieve the purpose of soft bit output

Method used

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  • Parallel soft elimination decoding method and related device
  • Parallel soft elimination decoding method and related device
  • Parallel soft elimination decoding method and related device

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Embodiment Construction

[0034] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0035] figure 1 This is a schematic diagram of a communication system provided in an embodiment of the present application. The communication system 100 may include at least one network device 101 (only one is shown) and one or more terminal devices 102 connected to the network device 101 . The network device 101 may wirelessly communicate with the terminal device 102 through one or more antennas. Each network device 101 can provide communication coverage for its corresponding coverage area 104 . The coverage area 104 corresponding to the network device 101 may be divided into a plurality of sectors, wherein one sector corresponds to a part of the coverage area (not shown).

[0036] In this embodiment of the present application, the network device 101 may include: a base transceiver station (BaseTransceiverSta...

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Abstract

The embodiment of the invention discloses a parallel soft elimination decoding method and a related device. The method comprises the steps: obtaining a to-be-decoded sequence, and enabling the bit length of the to-be-decoded sequence to be N; according to N, determining a hierarchy range s to 0 of a log likelihood ratio (LLR) updating mechanism of the sequence to be decoded, hierarchy m to hierarchy 0 forming sub-blocks for non-parity check PC bit parallelization decoding processing, and N = 2s + 1; carrying out lLR layer-by-layer iteration updating on the sequence to be decoded according to the hierarchy range s-0 until the preset maximum iteration number is reached, and obtaining the target log likelihood ratio LLR of the information bit direction of the sequence to be decoded, wherein the information bit direction is the LLR transmission direction from the high hierarchy to the low hierarchy; and decoding according to the target LLR in the information bit direction to obtain a decoding result. By adopting the embodiment of the invention, the requirements of soft bit output and high decoding performance can be met.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to a parallel soft-elimination decoding method and related devices. Background technique [0002] In recent years, with Polar Code being included in the wireless communication 5G standard, the decoding research of Polar Code has become a hot issue in the communication direction. The current mainstream Polar code decoding methods can be divided into two categories according to their decoding outputs, namely, Polar code hard-bit decoding and Polar code soft-bit decoding. Polar code hard-bit decoding means that the decoder directly determines the transmitted information bits according to the received signal. The polar code soft bit decoding means that the decoder calculates the soft bit value of the transmitted information according to the received signal (eg Log-Likelihood-Ratio). Afterwards, a final hard decision can also be made on the obtained soft bit val...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/11
CPCH03M13/1125
Inventor 童佳杰王献斌戴胜辰张华滋李榕王俊
Owner HUAWEI TECH CO LTD
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