Digital forward link in hybrid fiber-coax network
First Claim
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1. A system comprising:
- a computing device comprising;
a linecard configured for upstream data and downstream digital data, the linecard comprising;
a first ethernet port for downstream distribution of the downstream digital data, the first ethernet port configured to perform the downstream distribution of the downstream digital data via a signal in a downstream spectrum; and
a second ethernet port for reception of the upstream data, the second ethernet port configured to receive upstream transmission of the upstream data via a signal in an upstream spectrum; and
a node downstream of the computing device,wherein the first ethernet port and the second ethernet port are configured to together communicate with the node downstream of the computing device.
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Abstract
A hybrid fiber-coax network may replace an analog forward link with a digital optical forward link between a converged cable-access platform (CCAP) and node, which may allow for improved data-throughput rates on the network. Replacing the analog forward link with the digital optical forward link may allow for a greater distance between a headend and the node. Further, the digital optical forward link may improve link modulation error ratio (MER), which, when combined with advanced headend equipment, may enable a cable modem to support the high-order modulation profiles (e.g., profiles included in DOCSIS 3.1).
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Citations
20 Claims
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1. A system comprising:
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a computing device comprising; a linecard configured for upstream data and downstream digital data, the linecard comprising; a first ethernet port for downstream distribution of the downstream digital data, the first ethernet port configured to perform the downstream distribution of the downstream digital data via a signal in a downstream spectrum; and a second ethernet port for reception of the upstream data, the second ethernet port configured to receive upstream transmission of the upstream data via a signal in an upstream spectrum; and a node downstream of the computing device, wherein the first ethernet port and the second ethernet port are configured to together communicate with the node downstream of the computing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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transmitting, by a computing device, configuration information to a remote physical layer (remote-PHY) node over an ethernet link between the computing device and the remote-PHY node, the configuration information formatted according to a standardized interface, the configuration information using dynamic host configuration protocol; transmitting, from the computing device and to the remote-PHY node, maintenance information formatted according to the standardized interface, and the maintenance information comprising remote-PHY node maintenance instructions; and transmitting second configuration information from the computing device to a different remote-PHY node, the second configuration information formatted according to the standardized interface. - View Dependent Claims (13, 14, 15, 16)
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17. A data network, comprising:
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a remote physical layer (remote-PHY) node comprising a modulator; a computing device comprising; a media access control (MAC) component, and a timing component configured to generate timing information for synchronizing the MAC component and the modulator; and an ethernet link between the computing device and the remote-PHY node, wherein the remote-PHY node is configured to; receive downstream data over the ethernet link; modulate and transmit the downstream data via a downstream coaxial link; receive upstream data via the downstream coaxial link; and transmit the upstream data over the ethernet link. - View Dependent Claims (18, 19, 20)
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Specification