IP Library Granted Patent US 11,163,349
Granted Patent B2
US 11,163,349 · App. 16/705,722 · Granted Nov 2, 2021

Adaptive power over ethernet powering system

Inventors: Aravind Prasad Sridharan (Tamil Nadu, IN); Vigneshwar Kalyanaraman (Tamil Nadu, IN); Ramesh Ganapathi (Tamil Nadu, IN)
Assignee: Dell Products L.P.
G06F1/28
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Quick Facts
Patent No.
US 11,163,349
App. No.
16/705,722
Granted
Nov 2, 2021
Kind
B2
Abstract

A Power over Ethernet (PoE) adaptive powering system includes a powered device that identifies a first operating mode in which the powered device is currently operating, determines a first power amount that is required to enable the first operating mode in which the powered device is currently operating, and transmits a first power amount request message that requests the first power amount via a power/data connection. The adaptive PoE powering system also includes a powering device that is connected to the powered device via the power/data connection, and that receives the first power amount request message via the power/data connection, and transmits the first power amount via the power/data connection to the powered device.

Claims (70)

1. A Power over Ethernet (PoE) adaptive powering system, comprising:

a powered device that is configured to:

transmit, via a power/data connection, powered device powering information that identifies a plurality of operating modes for the powered device and a respective power amount for each of the plurality of operating modes;

receive, via the power/data connection, a minimum power amount that is associated with a minimum power operation of the plurality of operating modes included in the powered device information;

identify, subsequent to the receiving the minimum power amount, a first operating mode that is included in the plurality of operating modes and in which the powered device is currently operating;

determine a first power amount that is required to enable the first operating mode in which the powered device is currently operating; and

transmit a first power amount request message that requests the first power amount via the power/data connection; and

a powering device that is connected to the powered device via the power/data connection, wherein the powering device is configured to:

receive the powered device powering information;

transmit a minimum power amount that is associated with a minimum power operation of the plurality of operating modes included in the powered device information;

receive the first power amount request message via the power/data connection; and

determine that the first power amount is within a power amount associated with an operating mode included in the plurality of operating modes and, in response, transmit the first power amount via the power/data connection to the powered device.

2. The system of claim 1 , wherein the powered device is configured to:

identify a second operating mode to which the powered device has transitioned to from the first operating mode;

determine a second power amount that is required to enable the second operating mode to which the powered device has transitioned to from the first operating mode, wherein the second power amount is different from the first power amount; and

transmit a second power amount request message that requests the second power amount via the power/data connection, and wherein the powering device is configured to:

receive the second power amount request message via the power/data connection; and

determine that the second power amount is within a power amount associated with an operating mode included in the plurality of operating modes and, in response, transmit the second power amount via the power/data connection to the powered device.

3. The system of claim 1 , wherein the powered device powering information is transmitted prior to identifying the first operating mode in which the powered device is currently operating and subsequent to the powered device being connected to the powering device via the power/data connection, and wherein the powered device powering information includes a second power amount that is required by the powered device for second powered device operations, and a third power amount that is required by the powered device for third powered device operations and that is higher than the second power amount.

4. The system of claim 1 , wherein

the minimum power amount that is associated with the minimum power operation of the plurality of operating modes included in the powered device information is transmitted prior to receiving the first power amount request message and transmitting the first power amount via the power/data connection to the powered device, and wherein the minimum power amount allows the powered device to perform the minimum power operations that include network connection operations.

5. The system of claim 3 , wherein the powered device is configured, prior to identifying the first operating mode in which the powered device is currently operating, to:

identify, to the powering device via the power/data connection and subsequent to being connected to the powering device via the power/data connection, a powering time period.

6. The system of claim 5 , wherein the powering device is configured to:

receive the identification of the powering time period via the power/data connection from the powered device; and

transmit, in response to determining that the time period has ended, the second power amount via the power/data connection to the powered device.

7. The system of claim 1 , wherein the first power amount request message is a Link Layer Discovery Protocol (LLDP) message.

8. An Information Handling System (IHS), comprising:

a processing system; and

a memory system that is coupled to the processing system and that includes instructions that, when executed by the processing system, cause the processing system to provide a powered device engine that is configured to:

transmit, via a power/data connection, powered device powering information that identifies a plurality of operating modes for a powered device and a respective power amount for each of the plurality of operating modes;

receive, via the power/data connection, a minimum power amount that is associated with a minimum power operation of the plurality of operating modes included in the powered device information;

identify, subsequent to receiving the minimum power amount, a first operating mode that is included in the plurality of operating modes and in which the powered device is currently operating;

determine a first power amount that is required to enable the first operating mode in which the powered device is currently operating;

transmit, via a power/data connection to a powering device, a first power amount request message that requests the first power amount; and

receive, from the powering device when the first power amount is identified in the powered device powering information, the first power amount via the power/data connection.

9. The IHS of claim 8 , wherein the powered device engine is configured to:

identify a second operating mode to which the powered device has transitioned to from the first operating mode;

determine a second power amount that is required to enable the second operating mode to which the powered device has transitioned to from the first operating mode, wherein the second power amount is different from the first power amount;

transmit, via the power/data connection to the powering device, a second power amount request message that requests the second power amount; and

receive, from the powering device when the second power amount is identified in the powered device powering information, the second power amount via the power/data connection.

10. The IHS of claim 8 , wherein the powered device powering information is transmitted prior to identifying the first operating mode in which the powered device is currently operating and subsequent to the powered device being connected to the powering device via the power/data connection, and wherein the powered device powering information includes a second power amount that is required by the powered device for second powered device operations, and a third power amount that is required by the powered device for third powered device operations and that is higher than the second power amount.

11. The IHS of claim 10 , wherein the powered device engine is configured, prior to identifying the first operating mode in which the powered device is currently operating, to:

identify, to the powering device via the power/data connection and subsequent to being connected to the powering device via the power/data connection, a powering time period after which the second power amount should be provided via the power/data connection.

12. The IHS of claim 10 , wherein the minimum power operation include network connection operations, and wherein the second powered device operations include intermediate operations that utilize less power than maximum power operations that are performed by the powered device and that are provided by the third powered device operations.

13. The IHS of claim 8 , wherein the first power amount request message is a Link Layer Discovery Protocol (LLDP) message.

14. A method for adaptive Power over Ethernet (PoE) powering, comprising:

transmitting, by a powered device and via a power/data connection, powered device powering information that identifies a plurality of operating modes for a powered device and a respective power amount for each of the plurality of operating modes;

receiving, by the powered device and via the power/data connection, a minimum power amount that is associated with a minimum power operation of the plurality of operating modes included in the powered device information;

identifying, by the powered device and subsequent to receiving the minimum power amount, a first operating mode that is included in the plurality of operating modes and in which the powered device is currently operating;

determining, by the powered device, a first power amount that is required to enable the first operating mode in which the powered device is currently operating;

transmitting, by the powered device via a power/data connection to a powering device, a first power amount request message that requests the first power amount; and

receiving, by the powered device from the powering device when the first power amount is identified in the powered device powering information by the powering device, the first power amount via the power/data connection.

15. The method of claim 14 , further comprising:

identifying, by the powered device, a second operating mode to which the powered device has transitioned to from the first operating mode;

determining, by the powered device, a second power amount that is required to enable the second operating mode to which the powered device has transitioned to from the first operating mode, wherein the second power amount is different from the first power amount;

transmitting, by the powered device via the power/data connection to the powering device, a second power amount request message that requests the second power amount; and

receiving, by the powered device from the powering device when the second power amount is identified in the powered device powering information by the powering device, the second power amount via the power/data connection.

16. The method of claim 14 , wherein the powered device powering information is transmitted prior to identifying the first operating mode in which the powered device is currently operating to the powering device, and subsequent to the powered device being connected to the powering device via the power/data connection, and wherein the powered device powering information includes:

a second power amount that is required by the powered device for second powered device operations; and

a third power amount that is required by the powered device for third powered device operations and that is higher than the second power amount.

17. The method of claim 14 , further comprising:

receiving, by the powering device, the identification of the minimum power amount via the power/data connection from the powered device; and

transmitting, by the powering device prior to receiving the first power amount request message and transmitting the first power amount via the power/data connection to the powered device, the minimum power amount via the power/data connection to the powered device to allow the powered device to perform the minimum power operations that include network connection operations.

18. The method of claim 14 , further comprising:

identifying, by the powered to the powering device prior to identifying the first operating mode in which the powered device is currently operating via the power/data connection and subsequent to being connected to the powering device via the power/data connection, a powering time period.

19. The method of claim 18 , further comprising:

receiving, by the powering device, the identification of the powering time period via the power/data connection from the powered device; and

transmitting, by the powering device via the power/data connection to the powered device and in response to determining that the time period has ended, the minimum power amount according to the powered device powering information.

20. The method of claim 14 , wherein the first power amount request message is a Link Layer Discovery Protocol (LLDP) message.

Assignments (9)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053311/0169) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
Reel/Frame 060438/0742 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (052216/0758) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 060438/0680 →
RELEASE OF SECURITY INTEREST AF REEL 052243 FRAME 0773 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 058001/0152 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2021
From: SRIDHARAN, ARAVIND PRASAD; KALYANARAMAN, VIGNESHWAR; GANAPATHI, RAMESH
To: DELL PRODUCTS L.P.
Reel/Frame 057654/0494 →
SECURITY INTEREST Recorded Jun 5, 2020
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 053311/0169 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 26, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 052243/0773 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Mar 24, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 052216/0758 →