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OFDM-based high-speed wireless communication physical layer emission signal generation method and system

A technology of high-speed wireless communication and signal transmission, applied in the field of wireless communication

Active Publication Date: 2020-06-23
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

[0005] The present invention proposes an OFDM-based high-speed wireless communication physical layer transmission signal generation method and system to solve the problem of how to improve the frequency band efficiency and anti-channel multipath fading ability of high-speed wireless communication

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  • OFDM-based high-speed wireless communication physical layer emission signal generation method and system
  • OFDM-based high-speed wireless communication physical layer emission signal generation method and system
  • OFDM-based high-speed wireless communication physical layer emission signal generation method and system

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Embodiment Construction

[0070] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0071] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses an OFDM-based high-speed wireless communication physical layer transmission signal generation method and system. The method comprises the steps of determining physical frame header control word SIG data, physical frame header PHR data and physical layer service data unit PSDU data according to output data of a media access control layer MAC; respectively processing the SIGdata, the PHR data and the PSDU data according to a preset processing mode; constellation point mapping is carried out respectively, pilot frequency data after power control is inserted, and inverse Fourier transform is carried out on SIG data, PHR data and PSDU data after the pilot frequency data is inserted so as to convert the SIG data, the PHR data and the PSDU data to a time domain; respectively adding cyclic prefixes to the SIG data, the PHR data and the PSDU data which are converted into the time domain so as to respectively generate orthogonal frequency division multiplexing OFDM symbols corresponding to the SIG data, the PHR data and the PSDU data; acquiring time domain preamble signal data; and performing windowing processing on the time domain preamble signal data and OFDM symbols corresponding to the SIG data, the PHR data and the PSDU data to generate an OFDM-based frame signal, and enabling the OFDM-based frame signal to enter an analog front end.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to an OFDM-based high-speed wireless communication physical layer transmission signal generation method and system. Background technique [0002] Power line carrier communication is a wired communication technology that uses power wiring to transmit and receive communication signals. With the proposal of the country's plan and program for the development of smart grids, the continuous advancement of the construction of power consumption information systems, the substantial increase in the number of smart energy meters and collection terminals, and the wide application of power electronic devices and frequency conversion equipment, the electromagnetic environment of the power grid is becoming more and more serious. Complicated, the communication environment of the carrier is worse, and the carrier communication performance between the smart energy mete...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L27/26
CPCH04L1/0071H04L1/0009H04L1/0057H04L27/2692H04L1/0041H04L1/0066H04L1/0068H03M13/13H03M13/27H03M13/2771H03M13/2957H03M13/356H03M13/6362H04L27/26025H04L27/2602H04L27/2613H04L27/2627H04L27/2649
Inventor 刘宣张海龙唐悦李然任毅杜新纲林繁涛
Owner CHINA ELECTRIC POWER RES INST
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