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Method and system for maximizing data throughput rate in a power line communications system by modifying payload symbol length

a technology of power line communications and payload symbol, applied in the field of communication, can solve the problems of limiting the maximum available lack or limited availability of high speed processing technology, etc., and achieve the effect of increasing the data throughput rate of the plc system and reducing the frame structur

Inactive Publication Date: 2008-01-03
ARKADOS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach increases data transmission efficiency by allowing more data to be transmitted within the same time frame, enhancing the PLC system's data throughput rate without necessitating expensive upgrades to existing transceivers.

Problems solved by technology

When many of the prior art PLC systems, such as orthogonal frequency division multiplexing (“OFDM”) PLC systems, were designed, the lack or limited availability of high speed processing technology dictated the characteristics of the PLC signal frame structure.
PLC systems and PLC equipment, however, continue to utilize the prior art PLC signal frame structure design, which in many circumstances unnecessarily limits the maximum available data throughput rate for the PLC system.

Method used

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  • Method and system for maximizing data throughput rate in a power line communications system by modifying payload symbol length
  • Method and system for maximizing data throughput rate in a power line communications system by modifying payload symbol length
  • Method and system for maximizing data throughput rate in a power line communications system by modifying payload symbol length

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Embodiment Construction

[0020] The present invention of selectively controlling the length of a payload symbol of a PLC signal frame structure is explained in connection with operations performed at a PLC transceiver of an OFDM PLC system which is designed for conveying PLC data signals over conventional utility electrical power media. It is to be understood, however, that the present invention can be applied to OFDM based or other communication systems operating on other types of wired or wireless media.

[0021]FIG. 1 illustrates an exemplary, prior art electric power distribution and high speed data communications system 10, which includes both utility electric power distribution and in premise power distribution capabilities and over which PLC data signals generated in accordance with the present invention can be conveyed. Referring to FIG. 1, the system 10 includes a standard medium power substation 12 coupling a high voltage power line 14 to a common medium voltage power line and data distribution acce...

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Abstract

Data throughput rate in a power line communications (“PLC”) system is controlled by generating PLC carrier signals in accordance with a PLC signal frame structure containing payload symbols where the payload symbol length is selected based on at least one of a PLC system channel quality and node configuration data. The selected payload symbol length determines the processing operations that a source PLC transceiver performs for generating PLC signals or that a destination PLC transceiver performs for extracting information content from received PLC signals. The payload symbol lengths can be selected to maximize the data throughput rate while maintaining compatibility with prior art PLC system protocols and standards that require a PLC signal frame structure and its payload portion to have fixed, predetermined lengths.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims the benefit of U.S. Provisional Application No. 60 / 404,360 filed Aug. 19, 2002, which is incorporated by reference herein.FIELD OF THE INVENTION [0002] This invention relates to the field of communications over conventional electric power conveying media, and more particularly, to improving data throughput rate in a power line communications (“PLC”) system by modifying the length of payload symbols included in a PLC signal frame structure in view of PLC system channel quality information. BACKGROUND OF THE INVENTION [0003] In a PLC system, information is conveyed over conventional power line media on PLC data carrier signals. The PLC system includes PLC transceivers that operate in accordance with predetermined PLC protocols and standards. The protocols and standards are formulated in view of the processing capabilities of the PLC transceiver equipment and the expected PLC signal transmission characteristics of th...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04Q7/28H04B1/66H04B3/54H04L27/26
CPCH04B3/54H04B3/542H04B2203/5408H04L27/2608H04L1/0007H04L1/0017H04B2203/5416H04L5/0044
Inventor LOGVINOV, OLEGWALVIS, DIRKEBERT, BRIONLAWRENCE, DAVID
Owner ARKADOS INC
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