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Encoder, decoder and encoding and decoding methods

An encoding method and encoder technology, which are applied in the direction of error detection in signal space encoding, and can solve the problem of high algorithm complexity

Active Publication Date: 2010-09-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0010] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially solve the problem of high algorithm complexity of differential encoding technology and differential modulation technology decoding and demodulation

Method used

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  • Encoder, decoder and encoding and decoding methods
  • Encoder, decoder and encoding and decoding methods
  • Encoder, decoder and encoding and decoding methods

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Embodiment Construction

[0074]Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0075] Such as figure 2 As shown, the present invention proposes an encoder, which includes the following modules: an encoding and modulation module, an interleaving module, a serial-to-parallel conversion module, and a differential encoding module.

[0076] Among them, the coded modulation module will contain the input information sequence of K bits {d 1 ,...,d K} After modulation and encoding, output N modulation signals {c 1 ,...,c N}, where K and N are integers.

[0077] As an embodiment of the present invention, the encoding an...

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Abstract

The invention discloses an encoder which comprises an encoding and modulating module, an interweaving module, a serial-parallel transformation module and a differential encoding module. After an input information sequence line is modulated and encoded by the encoding and modulating module, weighting and differential encoding processing is respectively carried out for multipath parallel signals through the differential encoding module, and an encoding signal is obtained and output. The invention also discloses a decoder and a decoding method. In the technical scheme disclosed by the invention, through adopting a simpler and highly efficient data processing method, the complexity of decoding and demodulation algorithms of a differential encoding technology and a differential modulation technology is reduced, the processing delay is reduced, and the speed of data processing is improved.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular, the present invention relates to an encoder, a decoder and an encoding and decoding method. Background technique [0002] During the transmission process of digital signals, errors will occur due to the influence of noise and interference. In the communication system, error correction coding technology is generally used to ensure reliable transmission. For example, in a 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) LTE (Long Term Evolution, Long Term Evolution) system, a convolutional code is used to implement error correction coding. Among them, the encoder of the convolutional code contains 6 registers connected in series. At the beginning of the encoding, the registers of the encoder need to be initialized and cleared to "0". During the encoding process, the input data enters these registers for encoding in sequence. The register weig...

Claims

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Application Information

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IPC IPC(8): H03M13/25
Inventor 陈军陆会贤戴晓明王正海
Owner DATANG MOBILE COMM EQUIP CO LTD
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