×

Preamble detector for a CDMA receiver

  • US 20010017881A1
  • Filed: 12/11/2000
  • Published: 08/30/2001
  • Est. Priority Date: 12/15/1999
  • Status: Active Grant
First Claim
Patent Images

1. A method of detecting one of a set of preamble sequences in a spread signal comprising the steps of:

  • (a) correlating the received spread signal with sequences of a first orthogonal Gold code (OGC) set in accordance with a first fast transform to provide a preamble signal;

    (b) correlating the preamble signal with the set of preamble sequences in accordance with a second fast transform to generate a set of index values;

    (c) forming a decision statistic based on the set of index values; and

    (d) selecting, as the detected one of the set of preamble sequences, a preamble sequence corresponding to the decision statistic.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×