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Quantized detection in uplink MIMO with oversampling

  • US 10,447,504 B1
  • Filed: 05/16/2018
  • Issued: 10/15/2019
  • Est. Priority Date: 05/16/2018
  • Status: Active Grant
First Claim
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1. A method of a quantized detection in an uplink mimo with oversampling which takes samples faster than a symbol rate for the uplink MIMO with a 1-bit ADC, the method comprising the steps of:

  • obtaining a relation between transmitted data symbols x and a quantized temporally oversampled observation vector r in a simple form y=Hx+n, by deriving an oversampled channel matrix H, a detector providing an estimate for the transmitted data symbols x based on the quantized temporally oversampled observation vector r, the oversampled channel matrix H and a derived simple relation between the oversampled channel matrix H and the quantized temporally oversampled observation vector r=Q(Hx+n);

    wherein Q(Hx+n) is a quantizer function mapping an input of a quantizer to discrete levels, and n is a noise vector; and

    wherein the detector utilizes a temporal oversampling in the uplink quantized MIMO method.

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