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US 10,708,104 B2Granted
Systems and methods for a multicarrier modulation system with a variable margin
AssigneeTq Delta, LLC
InventorMarcos C. Tzannes
Life of this patent
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Abstract
A multicarrier modem has a plurality of carriers over which data is transmitted. By assigning, for example, one or more different margins to the individual carriers the data rate and impairment immunity can be increased.
Claims22
A method in a multicarrier communications transceiver comprising:
- transmitting a first plurality of bits on a first plurality of carriers using a first SNR (Signal to Noise Ratio) margin;
- transmitting a second plurality of bits on a second plurality of carriers using a second SNR margin;
- wherein the first plurality of carriers is different than the second plurality of carriers, wherein the first SNR margin is higher than the second SNR margin, and
- wherein the higher first SNR margin provides more immunity to changing channel conditions than the second SNR margin,
- and changing the first SNR margin value or the second SNR margin value after commencing data communications.
2 more elements
A multicarrier communications transceiver operable to:
- transmit a first plurality of bits on a first plurality of carriers using a first SNR margin value;
- transmit a second plurality of bits on a second plurality of carriers using a second SNR margin value;
- wherein the first plurality of carriers is different than the second plurality of carriers,
- wherein the first SNR margin value is higher than the second SNR margin value, and
- wherein the higher first SNR margin value provides more immunity to changing channel conditions than the second SNR margin value,
- the transceiver further operable to change the first SNR margin value or the second SNR margin value after commencing data communications.
3 more elements
Dependencies are inferred from the claim text.