Power line communication system and method of using the same
First Claim
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1. A system for providing communications over an electric power system having a medium voltage power line, a plurality of customer power lines with each extending to a customer residence, and a first transformer coupling the medium voltage power line to the customer power lines, the system comprising:
- an aggregation device forming a portion of a data path between the medium voltage power line and a point of presence;
a first transformer bypass device communicatively coupled to the medium voltage power line and the plurality of customer power lines to provide a data path bypassing the first transformer;
said first transformer bypass device comprising a first modem communicatively coupled to the plurality of customer power lines and a second modem communicatively coupled to the medium voltage power line and said first modem;
a first isolation device forming at least part of a data path between said second modem and the medium voltage power line; and
wherein data is communicated between said transformer bypass device and said aggregation device via the medium voltage power line.
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Abstract
The last portion of the electrical distribution system is used to provide high-speed communications to residential homes. An aggregation point interfaces a medium voltage power line with a point-of-presence, and a power line bridge enables flow of communications signals between the medium voltage power line and a low voltage power line across a distribution transformer.
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Citations
49 Claims
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1. A system for providing communications over an electric power system having a medium voltage power line, a plurality of customer power lines with each extending to a customer residence, and a first transformer coupling the medium voltage power line to the customer power lines, the system comprising:
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an aggregation device forming a portion of a data path between the medium voltage power line and a point of presence;
a first transformer bypass device communicatively coupled to the medium voltage power line and the plurality of customer power lines to provide a data path bypassing the first transformer;
said first transformer bypass device comprising a first modem communicatively coupled to the plurality of customer power lines and a second modem communicatively coupled to the medium voltage power line and said first modem;
a first isolation device forming at least part of a data path between said second modem and the medium voltage power line; and
wherein data is communicated between said transformer bypass device and said aggregation device via the medium voltage power line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of using a communication system for providing communications between at least one communication device and a point of presence, the system comprised of a bypass device and an aggregation device in communication with each other via a medium voltage power line, the bypass device in communication with the communication device via a first low voltage power line, the method comprising:
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at the bypass device;
receiving a first data packet signal from the communication device via the first low voltage power line, demodulating said first data packet signal, modulating a signal based on said first data packet signal to form a second data packet signal, isolating the first low voltage power line from the medium voltage power line; and
transmitting said second data packet signal through the medium voltage power line; and
at the aggregation device;
receiving said second data packet signal from the medium voltage power line, demodulating said second data packet signal, and transmitting a third signal based on said second data packet signal to the point of presence. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A transformer bypass device providing a communication path around a transformer between a medium voltage power line and at least one low voltage power line, comprising:
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a first modem communicatively coupled to the low voltage power line;
a second modem in communication with said first modem and communicatively coupled to the medium voltage power line;
an isolation device disposed between said second modem and the medium voltage power line; and
a data router in communication with said first modem and said second modem. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A communication device for providing data communications through a medium voltage power line, comprising:
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a communication interface providing at least part of a communication path between the medium voltage power line and the Internet;
a coupling device communicatively coupled to the medium voltage power line;
a modem in communication with said communication interface and in communication with the medium voltage power line via said coupling device; and
an isolator disposed between said modem and the medium voltage power line. - View Dependent Claims (42, 43, 44)
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45. A method of communicating Internet packet data through a communication system to a communication device, the system comprised of a bypass device and a network interface device communicatively coupled to each other via a medium voltage power line, the bypass device in communication with the communication device via a first low voltage power line, the method comprising:
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at the network interface device;
receiving a first packet of Internet data from a network, and transmitting said received first packet of Internet data through the medium voltage power line; and
at the bypass device;
receiving said transmitted first packet of Internet data via the medium voltage power line, isolating the first low voltage power line from the medium voltage power line; and
transmitting said first packet Internet of data through the low voltage power line to the communication device. - View Dependent Claims (46)
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47. A method of communicating telephony packet data through a communication system to a communication device, the system comprising of a bypass device and a network interface device communicatively coupled to each other via a medium voltage power line, the bypass device communicatively coupled to the communication device via a first low voltage power line, the method comprising:
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at the network interface device;
receiving a first packet of telephony data from a network, and transmitting said received first packet of telephony data through the medium voltage power line; and
at the bypass device;
receiving said transmitted first packet of telephony data on the medium voltage power line, isolating the first low voltage power line from the medium voltage power line; and
transmitting said first packet of telephony data through the low voltage power line to the communication device. - View Dependent Claims (48, 49)
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Specification