Receiver hardware reduction for spatially independent signals and associated methods
First Claim
1. A communications device comprising:
- an antenna array comprising a plurality of antenna elements for receiving at least N spatially independent signals;
a receiver coupled to said antenna array and comprising an analog receiver circuit for receiving the N spatially independent signals, and having a bandwidth of at least N times an information bandwidth of the spatially independent signals, and a digital receiver circuit coupled to said analog receiver circuit, and sampling the N spatially independent signals at a rate of at least N times a Nyquist rate which would have been required if a single antenna element had been used to receive the signals; and
a processor coupled to said digital receiver circuit for demultiplexing the sampled N spatially independent signals.
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Accused Products
Abstract
A communications device includes an antenna array comprising antenna elements for receiving at least N spatially independent signals, and a receiver coupled to the antenna array. The receiver includes an analog receiver circuit for receiving the N spatially independent signals, and has a bandwidth of at least N times an information bandwidth of the spatially independent signals. The receiver further includes a digital receiver circuit coupled to the analog receiver circuit, and samples the N spatially independent signals at a rate of at least N times a Nyquist rate which would have been required if a single antenna element had been used to receive the signals. A processor is coupled to the digital receiver circuit for demultiplexing the sampled N spatially independent signals.
19 Citations
28 Claims
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1. A communications device comprising:
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an antenna array comprising a plurality of antenna elements for receiving at least N spatially independent signals;
a receiver coupled to said antenna array and comprising an analog receiver circuit for receiving the N spatially independent signals, and having a bandwidth of at least N times an information bandwidth of the spatially independent signals, and a digital receiver circuit coupled to said analog receiver circuit, and sampling the N spatially independent signals at a rate of at least N times a Nyquist rate which would have been required if a single antenna element had been used to receive the signals; and
a processor coupled to said digital receiver circuit for demultiplexing the sampled N spatially independent signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for operating a communications device comprising an antenna array comprising a plurality of antenna elements, a receiver coupled to the antenna array and a processor coupled to the receiver, the method comprising:
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receiving at least N spatially independent signals by the antenna array;
providing the N spatially independent signals to an analog receiver circuit within the receiver, the analog receiver circuit having a bandwidth of at least N times an information bandwidth of the spatially independent signals;
sampling in a digital receiver circuit coupled to the analog receiver circuit within the receiver the N spatially independent signals at a rate of at least N times a Nyquist rate which would have been required if a single antenna element had been used to receive the signals; and
demultiplexing the sampled N spatially independent signals in the processor. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification