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Method and apparatus for adaptive multi-stage multi-threshold detection of paging indicators in wireless communication systems

  • US 7,787,892 B2
  • Filed: 07/25/2006
  • Issued: 08/31/2010
  • Est. Priority Date: 10/05/2005
  • Status: Active Grant
First Claim
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1. A method for detecting paging indicators through a paging channel for removing a mobile terminal from an idle mode in a wireless communication system, the method comprising:

  • receiving a first paging indicator (I1);

    determining whether a first indicator measurement (x1) corresponding to the first paging indicator is between a first and a second thresholds (t1 and t2 respectively) wherein t1 indicates a boundary for tolerating a miss call and t2 indicates a boundary for tolerating a false alarm;

    receiving a second paging indicator (I2) which is a temporal diversity counterpart of the first paging indicator; and

    comparing a second indicator measurement (x3) derived based on both the first and second paging indicators against a third threshold (t3),wherein the mobile terminal is removed from the idle mode when x1 is between t1 and t2, and x3 is larger than t3,wherein t1 and t2 are derived based on signal-to-noise ratios (SNRs) corresponding to the first and second paging indicators respectively, and t3 is derived based on SNR corresponding to both the first and second paging indicators,wherein the indicator measurements and the SNR based thresholds are adaptive to variations of channel conditions and predetermined configurations of the paging channel.

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