System and method for data communication over power lines
First Claim
1. Method for data communication from a plurality of senders to a plurality of receivers being connected over a single electric power network having a determined data transmission channel bandwidth, comprising the step of simultaneously asynchronously transmitting data over a plurality of peer-to-peer transmission channels established between said plurality of senders and said plurality of receivers.
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Abstract
A system and a method are proposed for broadband communications over power lines comprising the area of the low-voltage transformer to the house connection unit and/or the electricity distribution inside the house. The new method allows for several parallel asynchronous data communications in different sub-channels with individual transmit power in each sub-channel. Sub-channel separation uses pass-band filters with high stop-band attenuation. High data rate in each sub-channel is achieved through the use of discrete wavelet multi-tone modulation. Coarse synchronization in each sub-channel and the optimization of the coefficients of the time-domain equalizer are carried out using a training sequence.
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Citations
22 Claims
- 1. Method for data communication from a plurality of senders to a plurality of receivers being connected over a single electric power network having a determined data transmission channel bandwidth, comprising the step of simultaneously asynchronously transmitting data over a plurality of peer-to-peer transmission channels established between said plurality of senders and said plurality of receivers.
- 13. System for data communication comprising a plurality of communication devices for transmitting and/or receiving data over an electric power network having a determined data transmission channel bandwidth, said communication devices each comprising a transceiver system designed for asynchronously transmitting data over a plurality of peer-to-peer transmission channels established between said plurality of communication devices.
Specification