A Power Line Communication System that Enables Low-Cost Last Mile Access to any Legacy or Emerging Network Infrastructure

• US 20050226200A1
• Filed: 03/23/2005
• Published: 10/13/2005
• Est. Priority Date: 03/26/2004
• Status: Abandoned Application

• Current Assignee: Edgecom (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Edgecom (Telefonaktiebolaget LM Ericsson)
• Inventors: Thompson, Scott Randall, Askildsen, Bernt Askild
• Application Number:
  US10/907,187
• Publication Number:
  US 20050226200A1
• Time in Patent Office: Days
• US Class Current: 370/347
• CPC Class Codes: H04B 2203/5445 Local network
• 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: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals
• CPC Class Codes: H04L 12/2801 Broadband local area networks

Abstract

An economically attractive method to provide multiuse broadband connectivity to the edge of legacy telecommunication and emerging networks is disclosed. The invention utilizes a multi-phase common signal return coupling scheme that passes signals onto the step-down side of power transformers. This invention enables the transformer to serve as an economically attractive distribution point that transfers external payload signals from service providers to customer network access points on the load side of the transformer. The resulting power line network will permit remote control of utilization and access to any legacy or emerging network payload such as ITU and IETF that is present at any type of electric power transformer.

Claims

1. Any device of the type shown by example in the attached drawings that acts as a signal payload distribution point that couples any type of communication or multi-media signals from any source directly to the step-down side of any type of power transformer without passing signals through the power transformer and without forming a physical connection between the primary and secondary side of the transformer that includes in combination,

a. Any device that couples signals to multiple phases on the secondary side of the transformer;

b. Any device that enables the power line physical layer to pass signals through the power meter to reach any customer network access point;

c. Any device that couples data from RF signals to directly to power lines on the secondary side of the transformer;

d. Any device that couples data from infrared signals to directly to power lines on the secondary side of the transformer;

e. Any device that couples data from laser signals to directly to power lines on the secondary side of the transformer;

f. Any device that couples data from optical signals to directly to power lines on the secondary side of the transformer;

g. Any device that couples data from coaxial cable signals to directly to power lines on the secondary side of the transformer;

h. Any device that couples data from fiber-optic cable signals to directly to power lines on the secondary side of the transformer;

i. Any device that couples data from any future communication source directly to power lines on the secondary side of the transformer.

2. Any device of the type in claim 1 that uses any power line on the secondary side of the transformer as a signal return path that includes in combination,

a. any device that uses neutral or common ground as a signal return path;

b. any device that uses any phase as a signal return path.

3. Any device that converts any signals that are coupled to the secondary side of the transformer from any device of the type in claim 1 to any usable network access point format that includes in combination,

a. Any device that converts signals that are present on power lines to a useable format for computers;

b. Any device that converts signals that are present on power lines to a useable format for televisions;

c. Any device that converts signals that are present on power lines to a useable format for telephones;

d. Any device that converts signals that are present on power lines to a useable format for multi-media platforms.

4. Any device of the type in claim 2 that provides a method of controlling access to signals on power lines that have been coupled to the secondary side of the transformer from any device of the type in claim 1 that includes in combination,

(a) Any multi-user hardware and software exchange modules, located anywhere on the secondary side of the transformer that controls bandwidth utilization, quality of service, and network management functions;

(b) Any device that converts signals that are present on power lines to a useable format for any combination of items of the type in claim 3.

5. Any combination of devices of the types in claim 1, claim 2, claim 3, and claim 4 that bridge communications between any type of power line network architecture and any type of external architecture that includes in combination,

(a) Any combination of devices that bridges communications between any type of power line network architecture and the internet;

(b) Any combination of devices that bridges communications between any type of power line network architecture and any external voice communication service;

(c) Any combination of devices that bridges communications between any type of power line network architecture and any external data communication service;

(d) Any combination of devices that bridges communications between any type of power line network architecture and any external multi-media service;

(e) Any combination of devices that bridges communications between any type of power line network architecture and an external control device;

(f) Any combination of devices that bridges communications between any type of power line network architecture and an external monitoring device;

(g) Any combination of devices that enables any power line communication system anywhere on the secondary side of the transformer to access any external communication service.

6. Any device of the type in claim 1, claim 2, claim 3, claim 4, and claim 5 that ensures that communication signals are present on any number of phases on the secondary side of the transformer of a power line system that includes in combination,

(a) Any ungrounded power line system;

(b) Any ground power line system;

(c) Any single phase power line system;

(d) Any two-phase power line system;

(e) Any three-phase power line system;

(f) Any multiple phase power line system;

(g) Any multiple transformer power line system.

7. Any device of the type in claim 1, claim 2, claim 3, claim 4, claim 5, and claim 6 that includes a power meter or other device that is able to record and report the amount of energy that is consumed by the device.

8. Any device of the type in claim 1, claim 2, claim 3, claim 4, claim 5, and claim 6 that includes a battery or any form of uninterruptible power supply to ensure continuous device operation in the absence of power from the transformer or any other source of conventional electric power.