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POWER OPTIMIZED STATION CONNECTION MANAGER IN IEEE 802.11 TYPE STATIONS

  • US 20090016296A1
  • Filed: 07/09/2007
  • Published: 01/15/2009
  • Est. Priority Date: 07/09/2007
  • Status: Active Grant
First Claim
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1. A method of managing a mobile station which is associated with a serving BSS and interacting with a potential candidate BSS for handoff while roaming, comprising the steps of:

  • using an autonomous station connection manger and initially maintaining a default idle stable state at a minimum level of activity and power consumption sufficient to receive an incoming call;

    while in said idle stable state, periodically polling and scanning a detected BSS (Access Point) to detect relevant messages using DTIM (Delivery Traffic Indication Message);

    sending a triggering frame to trigger corresponding frame transmission at an Access Point;

    using the trigger to verify if the triggering frame is acknowledged, and then switching the mobile station to an active state until end of packet exchange as managed internally by said station connection manager; and

    ,if the triggering frame is not acknowledged, resuming scanning to update a BSS list prior to joining a newly found BSS via authentication and association states.

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