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Multi-stage CDMA synchronization with parallel execution

  • US 20040005020A1
  • Filed: 06/23/2003
  • Published: 01/08/2004
  • Est. Priority Date: 01/25/1999
  • Status: Abandoned Application
First Claim
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1. A synchronization method for synchronizing a receiver with a transmitted signal, comprising the steps of:

  • selecting a frequency channel and receiving a signal;

    filtering, amplifying and sampling the signal to generate signal samples for processing;

    processing said samples using a first code to detect correlation with said first code;

    upon detection of correlation with said first code, processing said same signal samples using a timing identified by said detected correlation and at least one second code to detect correlation with said at least one second code;

    upon detection of correlation with said at least one second code, processing said same signal samples using a code related to said second code to decode transmitted information; and

    testing for correct decoding of said information to verify correct synchronization.

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