Method And Apparatus For Smart Adaptive Dynamic Range Multiuser Detection Radio Receiver
AssigneeMassachusetts Institute of Technology
InventorsRachel E. LEARNED, Paul David FIORE
Life of this patent
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Abstract
A receiver includes multi-user detection (MUD) functionality and a cognitive engine. The receiver may also be coupled to multiple antennas and have analog beamforming capability. The cognitive engine is operative for selecting a beam or beams associated with the multiple antennas to enable successful demodulation by the MUD. The receiver has application in multiple access channels and in other communication scenarios.
Claims47
A communication device for use in a multi-signal wireless environment having a signal of interest and one or more other signals in a common frequency band, the device comprising:
- multiple antenna ports for connection to multiple antennas;
- at least one analog beamformer to form different receive beams for the multiple antennas, each receive beam to receive a different combination of the signal of interest and the one or more other signals;
- a multi-user detector (MUD) that is capable of demodulating a signal of interest within a composite signal;
- and
- a cognitive engine to intelligently select one or more receive beams that will result in a dynamic range between the signal of interest and the one or more other signals that are delivered to the MUD that is favorable for successful detection of the signal of interest in the MUD.
A method for use in detecting and demodulating a signal of interest in a multi-signal wireless environment, comprising:
- receiving signals using multiple receive beams associated with a plurality of antennas, wherein each receive beam outputs a composite signal having a different combination of the signal of interest and one or more other signals;
- and
- selecting one or more of the multiple receive beams to be coupled to a multi-user detector (MUD) to demodulate the signal of interest, wherein selecting one or more of the multiple receive beams includes selecting one or more receive beams that will produce an estimated dynamic range between the signal of interest and the one or more other signals that is favorable for demodulation of the signal of interest in the MUD.
Dependencies are inferred from the claim text.