×

System and method for adaptive beam forming for specific absorption rate control

  • US 9,246,216 B2
  • Filed: 12/06/2013
  • Issued: 01/26/2016
  • Est. Priority Date: 09/08/2009
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising the steps of:

  • a) measuring a return power level present at antennas of a modifiable mobile communication device at regular time intervals;

    b) determining that an output power of the modifiable mobile communication device is greater than a predefined specific absorption rate level, and comparing the return power level to a first threshold;

    c) determining that the return power level is greater than the first threshold, implementing a mobile transmit diversity algorithm combined with a reflection-based beamforming technique, the reflection-based beamforming technique providing an adaptive beam shaping pattern that shapes a transmitted beam pattern to minimize an amount of reflected transmitted power;

    d) re-measuring the return power level;

    e) determining that the return power level has increased, and applying a change to a diversity parameter of the mobile transmit diversity algorithm based on the results of the re-measuring step; and

    f) determining that the return power level is equal to or greater than a second threshold, repeating steps c-e until the return power level is less than the second threshold.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×