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Software-defined transceiver for a wireless telecommunications system

  • US 6,496,546 B1
  • Filed: 07/15/1998
  • Issued: 12/17/2002
  • Est. Priority Date: 07/15/1998
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • receiving an uplink analog wide-band RF signal at a base station;

    converting, in a first converting step, said uplink analog wide-band RF signal into an IF uplink analog wide-band signal having a total bandwidth WIF and encompassing a quantity N of narrow-band uplink channels;

    converting, in a second converting step, said IF uplink analog wide-band signal into an IF uplink digital signal;

    wide-band down-converting said IF uplink digital signal into said N narrow-band uplink channels wherein said wide-band down-converting includes using a multi-rate filter bank, rejecting at least some of said down-converted narrow-band uplink channels;

    demodulating at least some non-rejected narrow-band uplink channels.

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