Selecting A Signal Phase In A Communication System
AssigneeNantWorks, LLC
InventorThomas GUERENA
Life of this patent
Estimating the term…
Abstract
In some aspects, there is provided a method. The method may include estimating, based on a first signal-phase in a plurality of signal-phases associated with an input signal, a first channel impulse response; estimating, based on a second signal-phase in the plurality of signal-phases, a second channel impulse response; selecting, based on at least one characteristic of the estimated first channel impulse response and the estimated second channel impulse response, a signal-phase from the plurality of signal-phases; equalizing, based on the selected signal phase, the input signal to produce an equalized signal; and outputting, to a symbol detector, the equalized signal. Related systems, methods, and articles of manufacture are also disclosed.
Claims20
A signal processing system comprising:
- an analog-to-digital (ADC) converter configured to sample an analog input signal and provide a data stream including one or more data packets;
- a channel impulse response (CIR) estimator-generator configured to receive channel-estimation data for each of the one or more data packets, and generate a CIR estimate including a plurality of sequences each associated with a different signal phase of the sampled analog input signal;
- a phase selection logic configured to determine, based on CIR characteristics received from the OR estimator-generator, a signal phase for equalization;
- and
- a symbol-spaced equalizer configured to,
- generate equalization coefficients based on one of the plurality of sequences of the OR estimate which corresponds to the determined signal phase for equalization, and
- output an equalized signal, based on the equalization coefficients, to one or more downstream processing stages.
A non-transitory computer readable medium configured to store instructions which, when executed by at least one processor, cause the at least one processor to perform a method including:
- estimating, by a communication device based on a first signal phase in a plurality of signal phases associated with an input signal, a first channel impulse response;
- estimating, based on a second signal phase in the plurality of signal phases, a second channel impulse response;
- selecting, based on at least one characteristic of the estimated first channel impulse response and the estimated second channel impulse response, a signal phase from the plurality of signal phases;
- equalizing, based on the selected signal phase, the input signal to produce an equalized signal;
- and
- outputting, to a symbol detector, the equalized signal.
Dependencies are inferred from the claim text.