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MC-CDMA multiplexing in an orthogonal uplink

  • US 8,817,897 B2
  • Filed: 09/23/2010
  • Issued: 08/26/2014
  • Est. Priority Date: 12/22/2004
  • Status: Active Grant
First Claim
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1. A method for determining estimates of wireless transmissions received over a plurality of sub-carriers on an uplink, the method comprising:

  • dividing the plurality of sub-carriers on the uplink into a plurality of non-overlapping groups of sub-carriers;

    assigning multiple user devices to one time frequency block of one non-overlapping group of one uplink sub-carrier;

    receiving transmissions from one user device, the one user device configured to hop between frequencies over time within the one non-overlapping group of the one uplink sub-carrier; and

    estimating channels from consecutive sub-carriers within the one non-overlapping group using pilot symbols.

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