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Communication terminal out of range determination method, wireless communication system switching method and communication terminal

  • US 20040242218A1
  • Filed: 05/14/2004
  • Published: 12/02/2004
  • Est. Priority Date: 05/29/2003
  • Status: Active Grant
First Claim
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1. A communication terminal out of range determination method comprising the step of determining whether or not a communication terminal is out of range, based on a level of transmission signals from the communication terminal to a base station.

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