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US 2019/0094940 A1Published application
Network energy consumption reduction
AssigneeAvago Technologies International Sales Pte. Limited
InventorsMehmet Vakif TAZEBAY, Ahmad Chini, Xiaotong LIN
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Abstract
In some aspects, the disclosure is directed to methods and systems for a device including a physical interface with electrical connection to a communication channel, and circuitry configured to detect energy received at the physical interface, wait a predetermined length of a time until the beginning of a time slot, monitor the physical interface during the time slot for a predefined pattern from the communication channel, and upon detection of the predefined pattern, transition the device to an increased-power mode.
Claims20
A device comprising:
- an interface configured for connection to a communication channel;
- and
- circuitry configured to:
- identify, in a passive energy detection stage, a start of a defined power-mode-transition signaling sequence using passive energy detection while the device is in a reduced-power mode, wherein the passive energy detection comprises detecting that energy received at the interface exceeds a threshold;
- determine, in an active energy detection stage, responsive to the start of the defined power-mode-transition signaling sequence being identified, that the defined power-mode-transition signaling sequence is occurring using active energy detection, wherein the active energy detection comprises periodically transitioning the device from the reduced-power mode to an increased-power mode to check messages in the communication channel;
- and
- transition the device to an operational power mode responsive to a determination that the defined power-mode-transition signaling sequence has completed.
4 more elements
A system comprising:
- a first network node comprising a first media access controller (MAC) and a first physical interface device (PHY);
- and
- a second network node comprising:
- a second MAC;
- and
- a second PHY configured to transmit, to the second MAC, a defined media independent interface (MII) message indicating that a power mode transition is beginning,
- wherein the second MAC is configured to initiate, responsive to receiving the defined MII message from the second PHY, a defined power-mode-transition signaling sequence through the second PHY to the first PHY in the first network node to signal the first network node to begin the power mode transition, and
- wherein the defined power-mode-transition signaling sequence comprises a plurality of portions, and each portion is transmitted from the second PHY of the second network node to the first PHY of the first network node in a respective time slot of a plurality of predetermined time slots.
5 more elements
An apparatus comprising:
- a media access controller (MAC);
- and
- a physical interface device (PHY) configured to:
- receive a plurality of portions of a defined power-mode-transition signaling sequence via a communication channel from another PHY of another device, wherein each portion of the plurality of portions of the defined power-mode-transition signaling sequence is transmitted from the another PHY in a respective time slot of a plurality of predetermined time slots;
- perform a first verification that each portion of the plurality of portions of the defined power-mode-transition signaling sequence satisfies a respective predetermined description for the each portion of the plurality of portions of the defined power-mode-transition signaling sequence;
- perform a second verification that each portion of the plurality of portions of the defined power-mode-transition signaling sequence is received within a respective time slot of a plurality of predetermined time slots;
- determine that the defined power-mode-transition signaling sequence has been received based on the first verification and the second verification;
- and
- responsive to determining that the defined power-mode-transition signaling sequence has been received, notify the MAC by sending a pattern detected message.
6 more elements
Dependencies are inferred from the claim text.