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Delay-adjustable encoding method

An encoding method and encoder technology, which are applied in the fields of digital communication and digital storage, can solve problems such as not meeting requirements, and achieve the effects of ensuring a fixed code rate, simple steps, and convenient implementation.

Active Publication Date: 2016-06-15
SUN YAT SEN UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

For example, when the information rate of the information source is constant and the delay requirements of the user end are adjustable, the two existing encoding methods do not meet the requirements.

Method used

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Embodiment 1

[0018] The delay-adjustable multivariate low-density parity-check code (NBLDPC) encoding method to be designed can be configured with multiple delay parameters based on the same hardware architecture if the hardware system allows, including when the register length and interleaver width are applicable. B, at this time the code length is BN, where B={2,3,4,5,8}, the design of the encoding method is as follows image 3 The following steps are shown:

[0019] Given a multivariate low-density parity-check code (NBLDPC) defined on GF(64).

[0020] Step 1. Configure the delay parameter B, where B={2,3,4,5,8}. The all-zero sequence is stored in Register I and Register II.

[0021] Step 2: Take the information sequence whose length is BK u (t) , the sequence after grouping becomes in The length of is K=10.

[0022] Step 3, use the NBLDPC encoder to convert the information sequence u (t) codeword v (t) , to obtain a symbol sequence with a total length of BN and stored in...

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Abstract

The invention belongs to the field of digital communications and digital storage, and discloses a delay-adjustable encoding method. The method comprises the following steps: I, configuring a delay parameter B, wherein B is a positive integer; II, taking an information sequence underlined-u<(t)> of which a length is BK, and blocking the sequence into underlined-u<(t)>=(underlined-u<0><(t)>, underlined-u<1><(t)>, . . ., underlined-u<B-1><(t)>), wherein a length of underlined-u<(t)> (0<=i>=(B-1)) is a positive integer K; III, encoding the information sequence underlined-u<(t)> into a code word underlined-v<(t)> through a linear block code encoder to obtain a symbol sequence underlined-v<(t)>=(underlined-v<0><(t)>, underlined-v<1><(t)>, . . ., underlined-v<B-1><(t)>) of which a total length is BN, and storing the symbol sequence in a register I, wherein a length of underlined-v<(t)> (0<=i>=(B-1)) is a positive integer N; and IV, setting underlined-c<(t)>=underlined-v<(t)> xor pi(underlined-v<(t-1)>), wherein pi(underlined-v<(t-1)>) is a code word obtained after symbol interleaving through an interleaver pi, storing the pi(underlined-v<(t-1)> in a register II, inputting the underlined-v<(t)>=(underlined-v<0><(t)>, underlined-v<1><(t)>, . . ., underlined-v<B-1><(t)>) into the interleaver pi to perform interleaving, and writing an interleaved sequence into the register II. The method is simple in steps, convenient to implement, and low in complexity. Different delays can be met under the situation of ensuring a fixed code rate through simple configuration without changing a basic encoding and decoding hardware module for linear block codes, so that a compromise between delay and performance can be realized.

Description

technical field [0001] The invention belongs to the field of digital communication and digital storage, in particular to an encoding method with adjustable delay. Background technique [0002] Recently, International Mobile Telecommunications (IMT) released the 5G blueprint, and the 5G network is expected to be deployed around 2020. 5G networks will serve ubiquitous entities, including people, cars and machines. In addition to traditional voice, multimedia and data download services, 5G network services will also cover control machines, virtual reality, traffic safety information broadcasting, etc. At present, Huawei Technologies Co., Ltd. (hereinafter referred to as Huawei) has defined 15 typical application scenarios that 5G should support, including massively connected Internet of Things, automobiles, medical care, industrial automation robots, and scenarios such as autonomous driving, ultra-high-definition video, and virtual reality. . Obviously, due to the nature of ...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0018H04L1/0071
Inventor 马啸赵山程王千帆
Owner SUN YAT SEN UNIV
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