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PLC and wireless fusion transmission method in power line communication system

A technology of power line communication and transmission method, applied in the field of Internet of Things communication, can solve the problem of inability to complete wired and wireless diversity combining, and achieve the effects of increasing diversity copy performance, ensuring forward compatibility, and improving reliability.

Active Publication Date: 2021-11-02
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this solution can solve the problem of wired PLC and wireless converged communication, it cannot complete the function of combining wired and wireless diversity.

Method used

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  • PLC and wireless fusion transmission method in power line communication system
  • PLC and wireless fusion transmission method in power line communication system
  • PLC and wireless fusion transmission method in power line communication system

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Embodiment Construction

[0045] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0046] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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PUM

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Abstract

The invention relates to a PLC and wireless fusion transmission method in a power line communication system, and belongs to the field of Internet of Things communication. The method comprises the following steps: simultaneously dividing frame structure data into two parts at a sending end, sending one part to a PLC power line analog front end, sending the other part to a wireless analog front end, and finally loading the parts to respective transmission channels; by the PLC power line analog front end, only transmitting the real part of the frame structure data, and by the wireless analog front end, carrying out radio frequency modulation on the real part and the imaginary part of the frame structure data to a carrier and transmitting the real part and the imaginary part through a wireless channel; receiving the data from a PLC power line and the wireless channel at a receiving end at the same time, performing AGC adjustment and clock / frame synchronization respectively, conducting channel estimation through a preamble symbol, enabling the preamble symbol on the PLC power line to estimate power channel characteristics, enabling the preamble symbol on the wireless channel to estimate wireless channel characteristics, and then completing respective channel equalization by using respective channel characteristics. According to the invention, PLC power line and wireless fusion transmission is realized.

Description

technical field [0001] The invention belongs to the communication field of the Internet of Things, relates to a broadband power communication system PLC and wireless communication integration technology, and in particular relates to a PLC and wireless fusion transmission method in a power line communication system. Background technique [0002] In the low-voltage power line broadband carrier communication system, the physical layer architecture of the low-voltage power line broadband carrier communication system given in the national grid standard, at the transmitting end, the physical layer receives the input from the data link layer, using two separate links respectively Handles frame control data and payload data. After the frame control data is Turbo coded, channel interleaving and frame control diversity copy are performed; after the payload data is scrambled, Turbo coded, channel interleaving and payload diversity copying, constellation point mapping is performed toget...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04W24/02H04L25/02H04L12/46
CPCH04B3/54H04W24/02H04L25/0224H04L12/46
Inventor 黄沛昱刘愈石鑫应俊朱治国
Owner CHONGQING UNIV OF POSTS & TELECOMM
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