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Bit interleaver and interleaving method

A bit interleaver and bit interleaving technology, applied in the field of wireless communication, can solve problems such as resource waste, and achieve the effects of less resource occupation, short processing delay, and simple hardware implementation

Active Publication Date: 2009-04-29
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, provide a bit interleaver and a method for bit interleaving, which can solve the problem of waste of resources, and are easy to operate and simple in hardware implementation

Method used

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Embodiment Construction

[0028] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings through specific embodiments:

[0029] Such as figure 1 Shown is a schematic structural diagram of the bit interleaver of the present invention, including a control unit, a dual-port random storage medium RAM, a configuration information storage medium and a constellation mapping unit.

[0030] Among them, the control unit is used to write it into the random access memory RAM every time it receives a coded data block, and at the same time completes the bit interleaving, and reads the data from the RAM; it is also used to request to the upper module after receiving a coded data block The configuration information corresponding to the coded data block, and write the requested configuration information into the configuration information storage medium corresponding to the RAM while writing data to the RAM; it is also used to read data from...

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Abstract

The present invention relates to a bit interleaver and an interleaving method thereof. The interleaver comprises a control unit, a double port RAM and a configuration information storage medium corresponding to the RAM. When receiving a code data block, the control unit writes the code data block into the double port RAM, finishes a bit interleaving process at the same time and reads data from the double port RAM; when reading / writing data from / to the double port RAM, the control unit also read / write configuration information from / to the corresponding configuration information storage medium; the control unit can also return to the original state to wait for new data after the write operation RAM is full and the read operation RAM is empty. Comparing with the bit interleaver working in a ping-pong RAM mode by two RAMs, the bit interleaver of the present invention has an occupation resource reduced by one time and hardware which is simpler to realize.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a bit interleaver and a bit interleaving method. Background technique [0002] The bit interleaver has two main functions, one is bit interleaving, and the other is constellation mapping according to the configuration information passed down from the upper module. The upper level module is an encoder for providing data and configuration information to the bit interleaver. [0003] There is a piece of RAM (random read-write memory) inside the bit interleaver, which works in a pipeline mode. After the data is written into the RAM in rows and columns in units of bits, the data is read from the RAM in bytes. Thus realizing bit interleaving. [0004] In the existing scheme, when the data of a certain time slot is read from the RAM, it is also necessary to count the output time slots. According to the time slot number, the configuration information is read from the corresponding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/27
Inventor 李沐谈树峰尹浩琼邹光南
Owner SPACE STAR TECH CO LTD
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