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Data flow orthogonal multiplexing method and apparatus

A technology of orthogonal multiplexing and data flow, applied in the field of communication, to solve the effect of inter-symbol crosstalk

Inactive Publication Date: 2014-07-02
西安光向信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]A data stream orthogonal multiplexing method and device provided by the embodiment of the present invention solves the problem of intersymbol interference

Method used

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  • Data flow orthogonal multiplexing method and apparatus
  • Data flow orthogonal multiplexing method and apparatus

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Embodiment 1

[0026] An embodiment of the present invention provides a data stream orthogonal multiplexing method, such as figure 1 shown, including:

[0027] 11. Convert the transmitted data stream through serial-to-parallel conversion.

[0028] 12. Allocate the transformed data streams to multiple sub-channels with relatively low transmission rates for transmission;

[0029] 13. The symbol period in each subchannel will be relatively increased so that the symbol period is longer than that of multipath.

[0030] 14. Digital signal processing technology - fast Fourier transform.

[0031] A method for orthogonal multiplexing of data streams provided by an embodiment of the present invention comprises converting the transmitted data streams through serial-to-parallel conversion; distributing the transformed data streams to multiple sub-channels with relatively low transmission rates for transmission; each sub-channel The symbol period in will be relatively increased, so that the symbol pe...

Embodiment 2

[0033] An embodiment of the present invention provides a data stream orthogonal multiplexing device, such as figure 2 shown, including:

[0034] The conversion unit 21 converts the transmitted data stream through serial-to-parallel conversion;

[0035] The transformation unit 22 is configured to allocate the transformed data streams to multiple sub-channels with relatively low transmission rates for transmission;

[0036] Adding unit 23, the symbol period in each sub-channel will be relatively increased, so that the symbol period is longer than the multipath time.

[0037] Processing unit 24, digital signal processing technology - fast Fourier transform.

[0038] A data stream orthogonal multiplexing device provided by an embodiment of the present invention converts the transmitted data stream through serial-to-parallel conversion; assigns the transformed data stream to multiple sub-channels with relatively low transmission rates for transmission; each sub-channel The symb...

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Abstract

The invention relates to the field of communications, and discloses a data flow orthogonal multiplexing method and apparatus, for solving the problem of inter symbol interference. The main points of the technical scheme are as follows: a transmitted data flow is subjected to serial-parallel conversion; the converted data flow is distributed to multiple sub-channels with relatively low transmission rate for transmission; and the symbol period in each sub-channel is increased relatively so that the symbol period can be longer than a multipath time delay. The data flow orthogonal multiplexing method and apparatus are mainly applied to wireless mobile communications.

Description

technical field [0001] The invention relates to the communication field, in particular to a data stream orthogonal multiplexing method and device. Background technique [0002] The advancement of science and technology has higher and higher requirements for wireless mobile communication services in terms of voice, data, image, service quality and transmission rate. Broadband has become the main development direction in today's communication technology field, and 3G communication systems have entered commercial use. , but its maximum transmission rate is limited, there are still multiple standards, and it is not considered much in terms of integration with the Internet. These determine that the 3G communication system is only an improvement of the speed and capability of the existing mobile communication system, rather than a globally unified wireless broadband multimedia communication system. [0003] In the process of realizing the above wireless communication, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J11/00
Inventor 周晓辉武斌晁烈红
Owner 西安光向信息科技有限公司