Repeater for power line communication system

• US 20050220004A1
• Filed: 03/03/2003
• Published: 10/06/2005
• Est. Priority Date: 03/12/2002
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Deppe, Carsten, Durbaum, Thomas, Vollmer, Thomas
• Application Number:
  US10/506,837
• Publication Number:
  US 20050220004A1
• Time in Patent Office: Days
• US Class Current: 370/212
• CPC Class Codes: H04B 2203/5425 improving S/N by matching impedance, noise reduction, gain control
• CPC Class Codes: H04B 2203/5466 using three phases conductors
• CPC Class Codes: H04B 2203/5479 using repeaters
• CPC Class Codes: H04B 2203/5483 using coupling circuits
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04L 12/2838 Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths adaptations of television systems for transmission by electric cable for domestic distribution H04N7/106; hybrid transport H04L12/6418; home network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge
• CPC Class Codes: H04L 2012/2843 Mains power line
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/085 specially adapted for interworking of IP-based networks with other networks
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/169 Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks protocols for interworking, protocol conversion H04L69/08
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The invention relates to a method and a device (1) for data transmission in a power supply network (power line communication). The device (1), preferably centrally located in a distribution box (6), is equipped with transceivers (3, 4, 5), each one of which is connected to a phasing line (11, 12, 13) of the power supply network, from which it can receive data, and to which it can transmit data. The transceivers are coupled via a control unit (2), wherein the control unit ensures that the data received from a phasing line can be transmitted, prepared, on at least one other phasing line. Hereby, a re-transmission on all phasing lines with the same transmission power, or a re-transmission matched to the particular signal strengths or the addressees of the data, can take place.

Claims

1. A method for data transmission in a power supply network, wherein data transmitted on a particular phasing line (11) of the power supply network is received and then re-transmitted, characterized in that the data is re-transmitted on at least one phasing line (12, 13) different from the said phasing line (11).

2. A method as claimed in claim 1, characterized in that the data is re-transmitted on all phasing lines (11-13).

3. A method as claimed in claim 1, characterized in that the data is re-transmitted on the phasing lines (11-13) on which its original signal strength lay below a threshold value.

4. A method as claimed in claim 1, characterized in that the data is re-transmitted only on the phasing lines (11-13) to which the addressees (20-25) of the data are connected.

5. A method as claimed in claim 1, characterized in that a preparation, in particular a channel equalization and channel matching, is undertaken before the re-transmission.

6. A device (1) for data transmission in a power supply network, comprising a receiver (3-5) for receiving data transmitted on a first phasing line (11-13) of the power supply network, and a transmitter (3-5) for transmitting data on a second phasing line (12-13) of the power supply network, characterized in that the first and second phasing lines are different.

7. A device as claimed in claim 6, characterized in that it comprises a receiver and a transmitter (3-5) for each phasing line (11-13) of the power supply network, and that all receivers and transmitters are coupled together by a control unit (2).

8. A device as claimed in claim 6, characterized in that it comprises a storage device for the temporary storage of data transmitted on the phasing lines (11-13) of the power supply network.

9. A device as claimed in claim 6, characterized in that it is equipped with additional transmitting and receiving modules for connection to other networks with different transmission methods.

10. A device as claimed in claim 6, characterized in that it is equipped with an additional network filter for separation of an in-home network from an external network, wherein a further transmitter and receiver are preferably integrated on the external side, and selected data is routed past the filter.