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Method for overload control in a multiple access system for communication networks

  • US 6,469,991 B1
  • Filed: 05/22/1998
  • Issued: 10/22/2002
  • Est. Priority Date: 10/14/1997
  • Status: Expired due to Term
First Claim
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1. A method for overload control in a wireless communications network employing the On-Demand Multiple Access Fair Queuing protocol, said network having a base station and a plurality of remote hosts between which uplink and downlink packets flow, the method comprising the steps, in combination, of:

  • measuring at said base station an uplink Frame Error Rate, an average uplink bit rate, a burstiness factor of uplink traffic, and a packet loss rate for each of said remote hosts;

    measuring at each of said remote hosts a downlink Frame Error Rate, an average downlink bit rate, a burstiness factor of downlink traffic from said base station, and a packet loss rate;

    sending said measured downlink Frame Error Rate from each of said remote hosts to said base station;

    detecting at said base station from said Frame Error Rates when a queue overload occurs at least one of said remote hosts or said base station;

    if said queue overload is detected at one of said remote hosts, sending flow-control messages between said at least one of said remote hosts and said base station in order to control data flow; and

    if said queue overload is detected at said base station, discarding any of said packets at said base station that have experienced a delay exceeding a time-to-live threshold.

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