Dynamic power management in a power over ethernet system
First Claim
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1. A network device comprising:
- a dynamic power management controller adapted for coupling to a network connector that connects to a network cable in a configuration that transfers power and communication signals to a Powered Device (PD), the dynamic power management controller configured to transmit power management information over the network cable at a Transmission Control Protocol/Internet Protocol (TCP/IP) layer and/or a Media Access Control (MAC) layer;
the dynamic power management controller further configured to send detection and classification information in a plurality of phases and a plurality of cycles at a physical layer from the Powered Device (PD) to a Power Sourcing Equipment (PSE).
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Abstract
A network system comprises dynamic power management controllers respectively configured for usage in a Power Sourcing Equipment (PSE) and a Powered Device (PD) coupled by a network cable in a configuration that transfers power and communication signals from the PSE to the PD. The dynamic power management controllers are configured to communicate power management information over the network cable at a Transmission Control Protocol/Internet Protocol (TCP/IP) layer and/or a Media Access Control (MAC) layer.
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Citations
21 Claims
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1. A network device comprising:
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a dynamic power management controller adapted for coupling to a network connector that connects to a network cable in a configuration that transfers power and communication signals to a Powered Device (PD), the dynamic power management controller configured to transmit power management information over the network cable at a Transmission Control Protocol/Internet Protocol (TCP/IP) layer and/or a Media Access Control (MAC) layer; the dynamic power management controller further configured to send detection and classification information in a plurality of phases and a plurality of cycles at a physical layer from the Powered Device (PD) to a Power Sourcing Equipment (PSE). - View Dependent Claims (2, 3, 4, 5)
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6. A network device comprising:
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a dynamic power management controller adapted for coupling to a network connector that connects to a network cable in a configuration that sends power from a Power Sourcing Equipment (PSE) and communicates signals between the PSE and a Powered Device (PD), the dynamic power management controller configured to communicate power management information over the network cable at a Transmission Control Protocol/Internet Protocol (TCP/IP) layer and/or a Media Access Control (MAC) layer; the dynamic power management controller further configured to receive at the Power Sourcing Equipment (PSE) detection and classification information in a plurality of phases and a plurality of cycles at a physical layer from the Powered Device (PD) and send operational information from the PSE to the PD at the physical layer. - View Dependent Claims (7, 8, 9, 10)
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11. A network system comprising:
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dynamic power management controllers respectively configured for usage in a Power Sourcing Equipment (PSE) and a Powered Device (PD) coupled by a network cable in a configuration that transfers power and communication signals from the PSE to the PD, the dynamic power management controllers configured to communicate power management information over the network cable at a Transmission Control Protocol/Internet Protocol (TCP/IP) layer and/or a Media Access Control (MAC) layer; a dynamic power management controller at the Powered Device (PD) further configured to send detection and classification information in a plurality of phases and a plurality of cycles at a physical layer to the Power Sourcing Equipment (PSE); and a dynamic power management controller at the PSE further configured to receive the detection and classification information and send operational information from the PSE to the PD at the physical layer. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A power management method comprising:
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transmitting power from a Power Sourcing Equipment (PSE) to a Powered Device (PD) via a network cable; bidirectionally communicating signals between the PSE and the PD via the network cable; bidirectionally communicating power management information over the network cable at a Transmission Control Protocol/Internet Protocol (TCP/IP) layer and/or a Media Access Control (MAC) layer; sending detection and classification information in a plurality of phases and a plurality of cycles at a physical layer from the Powered Device (PD) to the Power Sourcing Equipment (PSE); receiving the detection and classification information at the PSE; and sending operational information from the PSE to the PD at the physical layer. - View Dependent Claims (18, 19, 20, 21)
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Specification