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A method and device for turbo coding interleaving processing

A coding and encoder technology, applied in the field of Turbo coding rate matching, can solve problems such as complex logic control, and achieve the effect of simple logic control and simple implementation

Inactive Publication Date: 2015-09-02
SANECHIPS TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] In order to solve the problem of complex logic control during interleaving processing in the prior art in the Turbo coding rate matching process, the present invention provides a method and device for Turbo coding interleaving processing

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  • A method and device for turbo coding interleaving processing
  • A method and device for turbo coding interleaving processing
  • A method and device for turbo coding interleaving processing

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Embodiment Construction

[0030] The technical solutions of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] Read data from the matrix to be read stored in RAM, and perform bit collection, selection and transmission processing.

[0032] This embodiment provides a method flow for Turbo coding interleaving processing as follows: figure 1 Shown include:

[0033] Step 101: Collect the third output stream output by the turbo encoder.

[0034] Step 102: Filling invalid null bits with the third output stream of the turbo encoder to obtain the original matrix.

[0035] In the present embodiment, the third output stream of the Turbo encoder is 157 bits and is represented as D, and D=0 、d 1 ... d i ... d 156 >, where 0≤i≤156 integers, d 0 is the bit data of the first output of the third output stream, d 1 is the bit data of the second output of the third output stream, d i is the i-th output bit data of the third output str...

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Abstract

The invention relates to the technical field of communication, provides a method and a device for Turbo coding rate matching, and aims to solve the problem of logic control complexity in interleaving processing in a Turbo coding rate matching process in the prior art. The method comprises the following steps of: collecting a third path of output stream output by a Turbo coder, and performing the interleaving processing directly on the third path of output stream to obtain a second matrix. The interleaving processing is directly performed on the third path of output stream, so that the reading of a random access memory (RAM) is not required in an interleaving processing process, and logic control is easy to implement.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for turbo coding rate matching. Background technique [0002] In the LTE system, the rate matching technology is used to balance the input and output data volumes. For different channel coding methods, the Turbo coding rate matching technology and the convolutional coding rate matching technology are respectively used in LTE. [0003] Compared with convolutional coding rate matching, turbo coding rate matching is a bit more complicated. Turbo coding rate matching can not only start from different positions of the data stream according to the needs, but also need to perform different interleaving on the three outputs of the turbo coder before processing and splicing them into two matrices before starting the bit selection operation. [0004] The existing problems in the prior art are as follows. During the turbo encoding rate matching process, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/29H04L1/00
Inventor 郑霖
Owner SANECHIPS TECH CO LTD
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