Error reporting in multi-carrier signal communication
AssigneeLantiq Beteilligungs-GmbH & Co. KG
InventorsHeinrich Schenk, Axel Clausen, Vladimir Oksman
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Abstract
In a communication device, a multi-carrier signal with at least one group of signal carriers is received from a communication connection. For each of the signal carriers, at least one individual error value is evaluated or generated. From the individual error values, a combined error value is evaluated or generated. The combined error value is transmitted on a backchannel of the communication connection.
Claims37
1-25. (canceled)
An apparatus for providing error information on a backchannel of a communication connection for vectoring, the apparatus comprising:
- circuitry configured to:
- receive a multi-carrier signal comprising signal carriers represented by symbols;
- determine individual error values for the received symbols based on expected symbols;
- determine a combined error value based on the individual error values;
- and
- generate a quantized combined error value from the determined combined error value;
- and
- a transmitter circuit configured to transmit a backchannel signal comprising the quantized combined error value.
The apparatus according to claim 7, wherein the demodulator is configured to use orthogonal frequency division multiplexing demodulation.
An apparatus for vectoring of a multi-carrier signal, the apparatus comprising:
- a transmitter circuit configured to transmit a multi-carrier signal comprising signal carriers represented by symbols;
- and
- a receiver circuit configured to receive a backchannel signal including a quantized combined error value determined based on individual error values determined for the transmitted symbols based on expected symbols.
A method for providing error information on a backchannel of a communication connection for vectoring, the method comprising:
- receiving a multi-carrier signal comprising signal carriers represented by symbols;
- determining individual error values for the received symbols based on expected symbols;
- determining a combined error value based on the individual error values;
- generating a quantized combined error value from the determined combined error value:
- and
- generating a backchannel signal comprising the quantized combined error value.
A method for vectoring of a multi-carrier signal, the method comprising:
- transmitting a multi-carrier signal comprising signal carriers represented by symbols;
- and
- receiving a backchannel signal including a quantized combined error value determined based on individual error values determined for the transmitted symbols based on expected symbols.
Dependencies are inferred from the claim text.