Apparatus and method for receiving quadrature amplitude modulated "qam" symbol
AssigneeCisco Technology, Inc.
InventorsAndreas Bernhard Bisplinghoff, Stefan Helmut Müller-Weinfurtner
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AssigneeCisco Technology, Inc.
InventorsAndreas Bernhard Bisplinghoff, Stefan Helmut Müller-Weinfurtner
Estimating the term…
Techniques are presented for receiving Quadrature Amplitude Modulated (QAM) symbols from a transmitter via a transmission path. In one example, a demodulator is configured to down-convert an incoming Radio Frequency (RF) signal to a baseband signal and convert the baseband signal to digital samples, and output the digital samples. A demapper is configured to receive the digital samples output from the demodulator and output data encoded in QAM symbols. The demapper is further configured to: determine from a constellation of QAM symbols a subset of QAM symbols that a digital sample from the demodulator may represent; apply an offset to each QAM symbol in the subset of QAM symbols of the constellation to result in a subset of offset QAM symbols; determine which QAM symbol in the subset of offset QAM symbols the digital sample most likely represents; and output data representing a determined QAM symbol.
A receiver for receiving Quadrature Amplitude Modulated (QAM) symbols from a transmitter via a transmission path, the receiver comprising:
A method of receiving Quadrature Amplitude Modulated (QAM) symbols from a transmitter via a transmission path, the method comprising:
A non-transitory computer-readable medium comprising instructions that, when executed by a computer, cause the computer to:
Dependencies are inferred from the claim text.