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Transmittal of heartbeat signal at a lower level than heartbeat request

  • US 7,221,664 B2
  • Filed: 06/12/2002
  • Issued: 05/22/2007
  • Est. Priority Date: 06/01/1998
  • Status: Expired due to Term
First Claim
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1. In a wireless communications system, a method for determining a request to change communications state, the method comprising:

  • receiving at least one signal having a first indication of a first communications state and having a first energy level;

    receiving said at least one signal having a second indication for a request to change to a second communications state and having a second energy level; and

    detecting the indications according to alternative criteria.

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