Back to results
US 12,537,726 B2Granted
Boost metric based pre-EQ limiting systems and methods
AssigneeAvago Technologies International Sales Pte. Limited
InventorsThomas J. Kolze, Roger Fish
Life of this patent
Estimating the term…
Abstract
Boost is provided. A circuit of a cable modem can be configured to receive, at a first input, a first message from a device over a channel, the channel comprising various subcarriers. The circuit can determine a transfer function associated with each of the subcarriers, the transfer function including an indication of power transfer between the circuit and the device. The circuit can determine, using the transfer functions, a power adjustments corresponding to the subcarriers. The circuit can determine, using the power adjustments, another power adjustment for the channel. The circuit can transmit, at a first output, a second message over the channel, the transmit power of the second message responsive to each of the power adjustments.
Claims24
A system comprising:
- a circuit configured to:
- receive, at a first input, a first message from a device over a channel, the channel comprising a plurality of subcarriers;
- determine a transfer function associated with each of the plurality of subcarriers, the transfer function comprising an indication of power transfer between the circuit and the device;
- determine, using the transfer functions, a plurality of first power adjustments configured to cause a receipt, at the device, of an equal power level for each subcarrier of the plurality of subcarriers;
- determine, using the plurality of first power adjustments, a second power adjustment configured to provide a channel power equal to a predefined power level for the channel;
- and
- transmit, at a first output, a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment.
4 more elements
A method, comprising:
- receiving, by a first device, a first message from a second device over a channel, the channel comprising a plurality of subcarriers;
- determining, by the first device, a transfer function associated with each of the plurality of subcarriers, the transfer function comprising an indication of power transfer between the first device and the second device;
- determining, using the transfer functions, a plurality of first power adjustments corresponding to the plurality of subcarriers;
- determining, using the plurality of first power adjustments, a second power adjustment for the channel, the second power adjustment based on a summation of an indication of a received amplitude for each of the plurality of subcarriers divided by a quantity of the plurality of subcarriers, the indication of the received amplitude based on a square of a ratio of a largest transfer function to each transfer function;
- and
- transmitting, by the first device, a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment.
3 more elements
A device configured to:
- receive a first message from a second device over a channel, the channel comprising a plurality of subcarriers;
- determine, a transfer function associated with each of the plurality of subcarriers, the transfer function comprising an indication of power transfer with the second device;
- determine, using the transfer functions, a plurality of first power adjustments corresponding to the plurality of subcarriers;
- determine, using the plurality of first power adjustments, a second power adjustment for the channel, based on a summation of an indication of a received amplitude for each of the plurality of subcarriers divided by a quantity of the plurality of subcarriers, the indication of the received amplitude based on a square of a ratio of a largest transfer function to each transfer function;
- and
- transmit a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment.
3 more elements
A system comprising:
- a circuit configured to:
- receive, at a first input, a first message from a device over a channel, the channel comprising a plurality of subcarriers;
- determine, for each of the plurality of subcarriers, a transfer function comprising an indication of power transfer between the circuit and the device, the transfer function comprising a scalar indicating a subcarrier power normalized relative to other subcarriers of the plurality of subcarriers;
- determine, using the transfer functions, a plurality of first power adjustments corresponding to the plurality of subcarriers;
- determine, using the plurality of first power adjustments, a second power adjustment for the channel;
- and
- transmit, at a first output, a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment.
4 more elements
A system comprising:
- a circuit configured to:
- receive, at a first input, a first message from a device over a channel, the channel comprising a plurality of subcarriers;
- determine a transfer function associated with each of the plurality of subcarriers, the transfer function comprising an indication of power transfer between the circuit and the device;
- determine, using the transfer functions, a plurality of first power adjustments corresponding to the plurality of subcarriers;
- determine, using the plurality of first power adjustments, a second power adjustment for the channel;
- transmit, at a first output, a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment;
- and
- generate a notification indicating a condition of the channel for presentation via a user interface.
5 more elements
A system comprising:
- a cable modem including a circuit configured to:
- receive, at a first input, a first message from a device over a channel, the channel comprising a plurality of subcarriers;
- determine a transfer function associated with each of the plurality of subcarriers, the transfer function comprising an indication of power transfer between the circuit and the device;
- determine, using the transfer functions, a plurality of first power adjustments corresponding to the plurality of subcarriers;
- determine, using the plurality of first power adjustments, a second power adjustment for the channel;
- and
- transmit, at a first output, a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment.
4 more elements
A system comprising:
- a circuit configured to:
- receive, at a first input, a first message from a device over a channel, the channel comprising a plurality of subcarriers;
- determine a transfer function associated with each of the plurality of subcarriers, the transfer function comprising an indication of power transfer between the circuit and the device;
- determine, using the transfer functions, a plurality of first power adjustments corresponding to the plurality of subcarriers;
- determine, using the plurality of first power adjustments, a second power adjustment for the channel based on a summation of an indication of a received amplitude for each of the plurality of subcarriers divided by a quantity of the plurality of subcarriers, the indication of the received amplitude based on a square of a ratio of a largest transfer function to each transfer function;
- and
- transmit, at a first output, a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment.
4 more elements
A system comprising:
- a circuit configured to:
- receive, at a first input, a first message from a device over a channel, the channel comprising a plurality of subcarriers;
- identify one or more excludable subcarriers from the plurality of subcarriers;
- identify a plurality of non-excludable subcarriers from the plurality of subcarriers;
- determine a transfer function associated with each of the plurality of non-excludable subcarriers, the transfer function comprising an indication of power transfer between the circuit and the device;
- determine, using the transfer functions, a plurality of first power adjustments corresponding to the plurality of non-excludable subcarriers;
- determine, using the plurality of first power adjustments, a second power adjustment for the channel;
- and
- transmit, at a first output, a second message over the channel, the transmit power of the second message responsive to the plurality of first power adjustments and the second power adjustment.
6 more elements
Dependencies are inferred from the claim text.