Power line communication system and method
First Claim
1. A method of providing communications over an electrical power distribution network having first and second medium voltage power line conductors in spaced-apart and substantially parallel relation, comprising:
- at a first location;
receiving first data via a backhaul link;
modulating at least one carrier with the first data to provide a first data signal; and
coupling the first signal to the first medium voltage power line conductor;
at a second location;
receiving the first data signal from the second medium power line conductor;
demodulating the received first data signal to provide the first data; and
transmitting the first data to a user device; and
wherein the first data signal couples from the first medium voltage power line conductor to the second medium voltage power line conductor, at least in part, through air.
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Accused Products
Abstract
The present invention provides a device for providing communications through power lines comprised of multiple conductors by transmitting the data signals through a plurality of the conductors. One embodiment of the present invention may be comprised of a transmit circuit communicatively coupled to a first energized conductor for applying a first voltage signal representing the data to the first energized conductor; the transmit circuit being communicatively coupled to a second energized conductor for applying a second voltage signal representing the data to the second energized conductor; and wherein the second voltage signal is opposite in polarity to said first voltage signal.
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Citations
29 Claims
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1. A method of providing communications over an electrical power distribution network having first and second medium voltage power line conductors in spaced-apart and substantially parallel relation, comprising:
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at a first location;
receiving first data via a backhaul link;
modulating at least one carrier with the first data to provide a first data signal; and
coupling the first signal to the first medium voltage power line conductor;
at a second location;
receiving the first data signal from the second medium power line conductor;
demodulating the received first data signal to provide the first data; and
transmitting the first data to a user device; and
wherein the first data signal couples from the first medium voltage power line conductor to the second medium voltage power line conductor, at least in part, through air. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of providing communications over an electrical power distribution network having first and second medium voltage power line conductors in spaced-apart and substantially parallel relation, comprising:
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at a first power line communications device;
receiving first data from a user device;
modulating at least one carrier with the first data to provide a first data signal; and
coupling the first data signal to the first medium voltage power line conductor;
at a backhaul device;
receiving the first data signal from the second medium power line conductor;
demodulating the received first data signal to provide the first data; and
transmitting the first data over a backhaul link; and
wherein the first data signal couples from the first medium voltage power line conductor to the second medium voltage power line conductor, at least in part, through air. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method of providing communications over an electrical power distribution network having first, second, and third medium voltage power line conductors in spaced-apart and substantially parallel relation, comprising:
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connecting a first power line communications device to the first medium voltage power line conductor;
connecting a second power line communications device to the second medium voltage power line conductor;
connecting a third power line communications device to the third medium voltage power line conductor;
wherein transmissions from the first power line communications device to the second power line communications device traverse at least the first medium voltage power line conductor, a link through air, and the second medium voltage power line conductor; and
wherein transmissions from the third power line communications device to the second power line communications device traverse at least the third medium voltage power line conductor, a link through air, and the second medium voltage power line conductor. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification