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Method of detecting unauthorized use of a wireless communication channel

  • US 5,517,568 A
  • Filed: 04/21/1994
  • Issued: 05/14/1996
  • Est. Priority Date: 04/21/1994
  • Status: Expired due to Term
First Claim
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1. A method for detecting unauthorized use of a communication unit in a secure wireless communication system, comprising the steps of:

  • a) monitoring a wireless communication channel presently supporting a secure communication;

    b) determining whether the secure communication is encrypted with active system encryption parameters; and

    c) when the secure communication is not encrypted with the active system encryption parameters, indicating that a communication unit involved in the secure communication is a potential unauthorized communication unit.

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