Detection and elimination of oscillation within cellular network amplifiers

  • US 7,409,186 B2
  • Filed: 07/13/2006
  • Issued: 08/05/2008
  • Est. Priority Date: 07/13/2006
  • Status: Active Grant
First Claim
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1. In a network amplifier, a method for substantially reducing oscillation, the method comprising:

  • receiving a cellular signal at a first antenna of a network amplifier;

    applying a first amplification factor to the cellular signal;

    transmitting a resultant amplified cellular signal via a second antenna;

    measuring a first signal level of the cellular signal while the first amplification factor is being applied to the cellular signal;

    applying a second amplification factor to the cellular signal, the second amplification factor being less than the first amplification factor;

    measuring a second signal level of the cellular signal while the second amplification factor is being applied to the cellular signal; and

    reducing the first amplification factor by a predetermined amount in the event that the second signal level is significantly less than the first signal level.

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