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Interleaving method and device

An interleaver and deinterleaving technology, applied in the field of communication, can solve the problems of large difference in random interleaving performance and unsatisfactory Polar code effect.

Active Publication Date: 2019-02-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The effect of the current interleaving design of Polar codes is not ideal, and the performance of random interleaving is quite different.

Method used

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Embodiment Construction

[0048] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0049] The embodiment of the present application provides an interleaving method and device, by interleaving or grouping the bit sequence to be interleaved once, so that the bits in the same group cover a larger range on the bit sequence to be interleaved, and then grouping the bits in the group This can help to avoid the limitations of intra-group bit interleaving; in addition, different interleaving methods are used in different groups, for example, if row-column interleaving is used, in the case of fixed rows, different groups Intra-group interleaving uses different numbers of rows. In the case of fixed columns, different groups use different numbers of columns for intra-group interleaving, which makes the interleaved sequence more random. Through experimental simulation, it is found that for Polar codes, the more randomized the effect of the inte...

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Abstract

The invention relates to the technical field of communication and discloses an interleaving method, a de-interleaving method and a device for improving the randomness of Polar code interleaving. The method comprises a step of acquiring a bit sequence to be interleaved, wherein the bit sequence to be interleaved includes L sub sequences which include S sub sequence groups, the S sub sequence groupsinclude at least a first sub sequence group and a second sub sequence group, the first sub sequence group includes at least 2 sub sequences, the second sub sequence group includes at least 1 sub sequence, and L is a positive integer greater than 1, a step of interleaving the sub sequences in the first sub sequence group by using a first interleaving manner, and a step of does not interleaving thesub sequence in the second sub sequence group or interleaving the sub sequence in the second sub sequence group by using a second interleaving manner.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to an interleaving method and device. Background technique [0002] The rapid evolution of wireless communication indicates that the fifth generation (5G) communication system will present some new features in the future. The three most typical communication scenarios include enhanced mobile Internet (enhance mobilebroadband, eMBB), mass machine connection communication (massive machine type communication, mMTC) and ultra reliable low latency communication (ultra reliable low latency communication, URLLC), the requirements of these communication scenarios will pose new challenges to the existing long term evolution (LTE) technology. As the most basic wireless access technology, channel coding is one of the important research objects to meet the needs of 5G communication. At present, the formulation of 5G standards has been in full swing, an...

Claims

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Application Information

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IPC IPC(8): H04L1/00H03M13/27H03M13/13
CPCH03M13/13H03M13/27H04L1/0013H04L1/0057H04L1/0071H03M13/2707
Inventor 王桂杰王坚乔云飞杜颖钢
Owner HUAWEI TECH CO LTD
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