Adaptive call control for use in a wireless communication system

  • US 7,289,467 B2
  • Filed: 02/08/2006
  • Issued: 10/30/2007
  • Est. Priority Date: 12/27/2000
  • Status: Active Grant
First Claim
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1. A method for controlling connections between a base station and a plurality of customer premise equipment (CPEs) in a wireless communication system, wherein the base station and the CPEs each are configured to adaptively adjust a modulation scheme for an uplink which includes one or more connections, wherein a planned modulation scheme selected for the uplink and wherein a current modulation scheme corresponds to the modulation technique used by a first CPE to transmit data, the method comprising:

  • receiving an uplink that is modulated by the first CPE using a current modulation scheme;

    determining a quality for a channel parameter for the uplink;

    comparing the quality with a current modulation scheme lower threshold;

    comparing the quality with a current modulation scheme upper threshold;

    if either the current modulation scheme upper or lower threshold has been crossed, determining a normalized hard bandwidth commitments for the uplink based on a second current modulation scheme to be used by the first CPE;

    if an air link line rate exceeds the normalized hard bandwidth commitments between the CPEs and the base station, applying the second current modulation scheme to the first CPE uplink, else suspending a connection between one of the plurality of CPEs and the base station.

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