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US 12,739,139 B2Granted
Sleep and wakeup signaling for ethernet
AssigneeMarvell Asia Pte Ltd
InventorsMing-Tak Leung, Bizhan Abedinzadeh, Hon Wai Fung, Liang Zhu, Der-Ren Chu
Life of this patent
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Abstract
A first communication device generates an Operation, Administration, and Maintenance (OAM) frame that includes i) OAM message content and ii) an OAM frame header outside of the OAM message content, wherein generating the OAM frame comprises generating the OAM frame header to include information that signals one of i) a low power sleep (LPS) request, and ii) a wake-up request (WUR). The first communication device transmits the OAM frame to a second communication device via a communication medium to signal to the second communication device the one of i) the LPS request, and ii) the WUR.
Claims24
A first communication device, comprising:
- physical layer (PHY) circuitry configured to perform PHY functions associated with a communication link including transmitting first frames to a second communication device via a communication medium corresponding to the communication link and receiving second frames from the second communication device via the communication medium;
- and
- a controller configured to:
- generate an Operation, Administration, and Maintenance (OAM) frame that includes a plurality of symbols, and that includes i) OAM message content among the plurality of symbols and ii) an OAM frame header outside of the OAM message content, the OAM frame header including a first symbol and a second symbol among the plurality of symbols, the second symbol comprising a set of bits that indicates a type of the OAM message content, the type from among multiple different types of OAM message content, wherein generating the OAM frame comprises generating the first symbol of the OAM frame header to include information that signals one of i) a low power sleep (LPS) request, and ii) a wake-up request (WUR), and
- prompt the PHY circuitry to transmit the OAM frame to the second communication device via the communication medium to signal to the second communication device the one of i) the LPS request, and ii) the WUR, including prompting the PHY circuitry to transmit the OAM frame so that the first symbol having the information that signals the one of the LPS request and the WUR is transmitted first in time among the plurality of symbols to facilitate the second communication device determining that the OAM frame signals the one of the LPS request and the WUR prior to the second communication device analyzing the second symbol that indicates the type of the OAM message content.
2 more elements
A method for communicating in a communication network, the method comprising:
- generating, at a first communication device, an Operation, Administration, and Maintenance (OAM) frame that includes a plurality of symbols, and that includes i) OAM message content among the plurality of symbols and ii) an OAM frame header outside of the OAM message content, the OAM frame header including a first symbol and a second symbol among the plurality of symbols, the second symbol comprising a set of bits that indicates a type of the OAM message content, the type from among multiple different types of OAM message content, wherein generating the OAM frame comprises generating the first symbol of the OAM frame header to include information that signals one of i) a low power sleep (LPS) request, and ii) a wake-up request (WUR);
- and
- transmitting, by the first communication device, the OAM frame to a second communication device via a communication medium to signal to the second communication device the one of the LPS request and the WUR, including transmitting the first symbol having the information that signals the one of the LPS request and the WUR first in time among the plurality of symbols to facilitate the second communication device determining that the OAM frame signals the one of the LPS request and the WUR prior to the second communication device analyzing the second symbol that indicates the type of the OAM message content.
A first communication device, comprising:
- physical layer (PHY) circuitry configured to perform PHY functions associated with a communication link including transmitting first frames to a second communication device via a communication medium corresponding to the communication link and receiving second frames from the second communication device via the communication medium;
- and
- a controller configured to:
- receive an Operation, Administration, and Maintenance (OAM) frame that was received by the PHY circuitry via the communication medium, the OAM frame having been transmitted to the first communication device from a second communication device via the communication medium, the OAM frame including a plurality of symbols, and further including i) OAM message content among the plurality of symbols and ii) an OAM frame header outside of the OAM message content, the OAM frame header including a first symbol and a second symbol among the plurality of symbols, the second symbol comprising a set of bits that indicates a type of the OAM message content, the type from among multiple different types of OAM message content, wherein the first symbol is received by the PHY circuitry first in time among the plurality of symbols, and
- process the first symbol of the OAM frame header to determine whether the first symbol of the OAM frame header includes information that signals to the first communication device one of i) a low power sleep (LPS) request, and ii) a wake-up request (WUR) prior to analyzing the second symbol that indicates the type of the OAM message content.
2 more elements
A method for processing communications in a communication network, the method comprising:
- receiving, at a first communication device, an Operation, Administration, and Maintenance (OAM) frame from a second communication device via a communication medium, the OAM frame including a plurality of symbols, and including i) OAM message content among the plurality of symbols and ii) an OAM frame header outside of the OAM message content, the OAM frame header including a first symbol and a second symbol among the plurality of symbols, the second symbol comprising a set of bits that indicates a type of the OAM message content, the type from among multiple different types of OAM message content, wherein receiving the OAM frame comprises receiving the first symbol first in time among the plurality of symbols;
- and
- processing, at the first communication device, the first symbol of the OAM frame header to determine whether the first symbol of the OAM frame header includes information that signals to the first communication device one of i) a low power sleep (LPS) request, and ii) a wake-up request (WUR) prior to analyzing the second symbol that indicates the type of the OAM message content.
Dependencies are inferred from the claim text.