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Interleaving apparatus and method for a communication system

A device and technology of interleaver, applied in the field of communication system, can solve the problems of complex transmission method of interleaver, difficulty in obtaining symbol synchronization, etc.

Inactive Publication Date: 2005-05-11
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the implementation, the interleaver has a complex transmission method and has difficulty in obtaining symbol synchronization

Method used

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  • Interleaving apparatus and method for a communication system
  • Interleaving apparatus and method for a communication system
  • Interleaving apparatus and method for a communication system

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Embodiment Construction

[0021] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. For brevity and conciseness, in the following description, functions or structures known to those skilled in the art will not be described in detail.

[0022] During operation, the interleaver / deinterleaver according to the embodiment of the present invention uses an interleaving / deinterleaving algorithm to permutate an input symbol sequence. The sequence of symbols is then stored in the output buffer in a new sequence. Therefore, the interleaver / deinterleaver described below includes at least: an interleaving memory (such as an input data buffer and an output data buffer), an address generator and a general-purpose counter.

[0023] interleaver / deinterleaver interleave memory, address generator and counters in figure 2 , which shows the structure of an interleaver 200 according to an embodiment of the present invention. see figure 2 , address generator ...

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Abstract

An interleaving device and method, if a given interleaver length N is greater than 2m×j and less than 2m×(j+1), then used to determine a new interleaver length N'=2m×(j+1) and 0 To the address of N'-1, where m represents the first parameter, which represents the number of consecutive 0 bits from the least significant bit (LSB) to the most significant bit (MSB), and j represents the second parameter, which is equivalent to dividing the above A decimal number other than consecutive 0 bits. The interleaving device and method, from address 0 to address N-1, sequentially store N input data bits in an interleaving memory with a new interleaver length N'. The interleaving apparatus and method then perform Partial Bit Reverse Order (PBRO) interleaving of the memory with the new interleaver length N', and read from the memory by deleting the addresses corresponding to the memory N to N'-1 before interleaving data.

Description

technical field [0001] The present invention relates generally to communication systems, and in particular to interleaving apparatus and methods for radio communication systems. In particular, the present invention relates to an interleaving device and method for generating an interleaving address and determining an interleaver length to improve the storage efficiency of the interleaver. Background technique [0002] Interleaving is a technique that is closely related to the decoding of random error-correcting codes and is typically applied to enhance the performance of error-correcting codes in fading channels. Many applications, such as the air interface of the International Mobile Telecommunications System 2000 (IMT-2000), require well-defined methods to implement various interleaving techniques. In addition, this technology should further help to improve the reliability of digital communication systems, especially to improve the performance of existing and future digita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/27H04L1/00
CPCH03M13/271H03M13/276H03M13/2789H03M13/27
Inventor 金潣龟河相赫
Owner SAMSUNG ELECTRONICS CO LTD