Crosstalk Cancellation Over Multiple Mediums
AssigneeFuturewei Technologies, Inc.
InventorsXiang Wang, Haixiang Liang
Life of this patent
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Abstract
A method of cancelling crosstalk including receiving, by a vector processor, a first signal from a first medium and a second signal from a second medium, wherein the first medium is different from the second medium, determining, using the vector processor, vectoring coefficients based on the first signal and the second signal received, cancelling, using the vector processor, the crosstalk from at least one of the first medium to the second medium and the second medium to the first medium using the vectoring coefficients determined, and transmitting or demodulating corrected signals following the cancellation of the crosstalk.
Claims20
A method of cancelling far-end crosstalk (FEXT), comprising:
- receiving, by a vector processor, a first signal from a first medium and a second signal from a second medium, wherein the first medium is different from the second medium;
- determining, using the vector processor, vectoring coefficients based on the first signal and the second signal received;
- substantially cancelling, using the vector processor, the FEXT from at least one of the first medium to the second medium and the second medium to the first medium using the vectoring coefficients determined;
- and
- transmitting corrected signals following the substantial cancellation of the FEXT.
A method of cancelling near-end crosstalk (NEXT), comprising:
- receiving, by a vector processor, a first signal from a first medium when a second signal is transmitted to a peer through a second medium, wherein the first medium is different from the second medium;
- determining, using the vector processor, vectoring coefficients based on the first signal and the second signal;
- substantially cancelling, using the vector processor, the NEXT from the second medium to the first medium using the vectoring coefficients determined;
- and
- demodulating corrected signals following the substantial cancellation of the NEXT.
An apparatus for cross medium vectoring, comprising:
- a vector processor operably coupled to a customer premises equipment (CPE) corresponding to a first medium and a domain access point (DAP) corresponding to a second medium, wherein the first medium is different from the second medium and the vector processor is configured to:
- receive a first signal from the first medium and a second signal from the second medium;
- determine vectoring coefficients based on the first signal and the second signal received;
- and
- cancel interference from at least one of the first medium to the second medium and the second medium to the first medium using the vectoring coefficients determined;
- and
- a transmitter operably coupled to the vector processor and configured to transmit corrected signals following cancellation of the interference by the vector processor.
Dependencies are inferred from the claim text.