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A transmission method and device based on code block grouping

A sending method and code block segmentation technology, which is applied in the field of communication, can solve the problems of unfavorable system real-time processing and increased processing capacity, and achieve the effects of simplifying the processing capacity, reducing the processing capacity, and speeding up the time

Inactive Publication Date: 2018-05-22
POTEVIO INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing code block processing at the transmitting end is only performed at the bit level, while scrambling and modulation are processed based on the entire transmission block length. With the complexity of LTE system configuration, the processing volume of scrambling and modulation is gradually increasing. Not conducive to real-time processing of the system

Method used

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  • A transmission method and device based on code block grouping
  • A transmission method and device based on code block grouping
  • A transmission method and device based on code block grouping

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0042] Such as figure 2 as shown, figure 2 It shows a schematic flow chart of the sending method based on code block grouping provided by the present invention, and the method includes the following steps:

[0043] Step S1: Carry out bit-level code block segmentation on the transmitted transmission block, and perform bit-level processing on the bit sequence of each code block obtained from the segmentation.

[0044] Step S2: Perform the same scrambling and...

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Abstract

The present invention provides a code block grouping-based sending method. The method includes: performing bit-level code block segmentation on a transmitted transmission block, and performing bit-level processing on the bit sequence of each code block obtained by the segmentation; Each subsequent code block is subjected to the same scrambling and modulation processing; the symbol-level code block concatenation is performed on the modulation symbols output after the modulation processing of all code blocks. The present invention also provides a code block grouping-based transmitting apparatus, which includes a code block bit-level processing unit, a code block scrambling and modulation unit, and a code block concatenating unit. The present invention combines the modulation and scrambling processing based on the code block level with the processing based on the code block such as bit-level channel coding and rate matching, thereby simplifying and reducing the processing amount of the system.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a code block grouping-based sending method and device. Background technique [0002] In the current Long Term Evolution (LTE for short) system, a new transmission mode is introduced in the downlink, and 8 transmit antenna precoding based on a dual codebook structure can support up to 8 layers of single-user multiple-input multiple In the output system (Multiple-input Multiple-output, MIMO for short), the number of bits in the corresponding transmission block is increased to a maximum of 299856 bits. The modulation method is also extended from QPSK, 16QAM, 64QAM to a higher order modulation method supporting 256QAM, and the corresponding number of transmission block bits is also increased to a maximum of 391656 bits. The bit-level processing of the LTE system generally adopts Turbo coding, and the maximum input bit length of the Turbo code is limited to 6144 bits. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 郑辰
Owner POTEVIO INFORMATION TECH CO LTD
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