METHODS AND APPARATUS TO PROVIDE POWER OVER AN ETHERNET-BASED NETWORK TO A WIDE AREA NETWORK ACCESS DEVICE

• US 20100103943A1
• Filed: 10/29/2008
• Published: 04/29/2010
• Est. Priority Date: 10/29/2008
• Status: Abandoned Application

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Walter, Edward
• Application Number:
  US12/260,798
• Publication Number:
  US 20100103943A1
• Time in Patent Office: Days
• US Class Current: 370/401
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 12/2861 Point-to-multipoint connection from the data network to the subscribers
• CPC Class Codes: H04L 12/2898 Subscriber equipments DSL modems H04M11/062; cable modems H04L12/2801

Abstract

Methods and apparatus to provide power over an Ethernet-based network to a wide area network access device are described. In some example systems, a local area network (LAN) access point is configured to provide power to a gateway device, such as an optical network termination (ONT), via a wired Ethernet connection. The example LAN access points provide power via a wide area network (WAN) Ethernet port, through which the LAN access points receive WAN access from a gateway. The example gateway provides WAN access to a LAN access point, and receives power sufficient to operate the gateway via an Ethernet port. The example gateway also includes a WAN port, such as a fiber connection, through which the gateway connects to a service provider. The example systems allow a gateway to be powered without a traditional dedicated power connection.

Claims

1. A gateway device, comprising:

a wide area network port at a first location to connect to a second network location;

an Ethernet port to connect to a local area network device, wherein the Ethernet port is configured to receive power from the local area network device sufficient to provide power to circuitry within the gateway device and to provide a data link to the local area network device; and

a power decoupling device configured to decouple the power received from the local area network device from the Ethernet port.

2. A gateway device as defined in claim 1, wherein the second network location comprises an Internet service provider.

3. A gateway device as defined in claim 2, wherein the wide area network port is communicatively coupled to the Internet service provider via a passive optical network.

4. A gateway device as defined in claim 1, wherein the wide area network port comprises a passive optical network fiber interface.

5. A gateway device as defined in claim 1, further comprising a processing device configured to receive power via the power decoupling device.

6. A gateway device as defined in claim 1, further comprising a power over Ethernet converter to convert the power received from the Ethernet port at a first voltage to a second voltage.

7. A gateway device as defined in claim 1, wherein the gateway device consumes less than about 15.4 watts of power.

8. A gateway device as defined in claim 1, wherein the power decoupling device decouples the received power from wires on which the data link is provided to the local area network device.

9. A network access point, comprising:

a local area network port to provide a first data link to a first data client device via a wired connection;

a wide area network port to receive wide area network access via an Ethernet cable providing a second data link to a gateway device, and to provide power to the gateway device via the Ethernet cable; and

a power coupler to couple the power to the gateway device with the second data link for transmission via the Ethernet cable.

10. A network access point as defined in claim 9, wherein the local area network port provides the wide area network access to the first data client device via the first data link.

11. A network access point as defined in claim 9, further comprising a wireless access port configured to provide a second data link to a second data client device via a wireless connection.

12. A network access point as defined in claim 9, further comprising:

an AC/DC power converter configured to generate direct current at a first voltage based on an alternating current source; and

a power over Ethernet module to generate direct current at a second voltage for transmission over the Ethernet cable.

13. A network access point as defined in claim 12, wherein the power coupler couples the second data link to a first set of wires and couples the power to a second set of wires.

14. A network access point, comprising:

a wireless access port configured to provide a first data link to a first data client device via a wireless data connection;

a wide area network port configured to receive wide area network access via an Ethernet cable providing a second data link to a gateway device, and to provide power to the gateway device via the Ethernet cable; and

a power coupler to couple the power to the gateway device with the second data link for transmission over the Ethernet cable.

15. A network access point as defined in claim 14, wherein the wireless access port provides the wide area network access to the first data client device via the first data link.

16. A network access point as defined in claim 14, wherein the power coupler couples the second data link to a first set of wires and couples the power to a second set of wires.

17. A network access point as defined in claim 14, further comprising:

an AC/DC power converter configured to generate direct current at a first voltage based on an alternating current source; and

a power over Ethernet module to generate direct current at a second voltage for transmission over the Ethernet cable.

18. A system, comprising:

a network access point comprising;

a local area network port configured to provide a first data link to a first data client device via a wired connection;

a wide area network port configured to receive wide area network access via an Ethernet cable providing a second data link to a gateway device and configured to provide power to the gateway device via the Ethernet cable;

a coupling device to couple the power to the gateway device with the second data link for transmission over the Ethernet cable;

wherein the gateway device comprises;

a wide area network port at a first location to connect to a second network location;

an Ethernet port to connect to the wide area network port of the network access point via the Ethernet cable and configured to receive the power from the network access point sufficient to provide power to circuitry within the gateway device, and to provide the second data link to the network access point via the Ethernet cable; and

a power decoupling device, configured to decouple the power received from the network access point from the second data link.