Method and system for optimally serving stations on wireless LANs using a controlled contention/resource reservation protocol of the IEEE 802.11E standard
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United States of America Patent
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Oct 2, 2012
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N/A
app pub date -
Oct 15, 2009
filing date -
Oct 31, 2001
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Abstract
A method for optimally serving Stations (STA) on Wireless Local Area Network (LAN) using a Controlled Contention/Resource Reservation protocol of the IEEE 802.11e standard. The Wireless LAN includes multiple STAs, mobile or Stationary, airlinked to an access point as a Basic Service Set (BSS). A Hybrid Coordinator (HC) is co-located with the access point for allocating the bandwidth for the BSS using a Controlled Contention/Resource Reservation protocol defined in the IEEE Standard 802.11(e). The HC transmits Contention Control (CC) frames and initiates Controlled Contention Intervals (CCI) having a selected number of slotted intervals. HC receives Resource Reservations (RR) detailing bandwidth needs from STA contenders during a specified time interval called the Controlled Contention Interval (CCI.). Several parameters are installed in each CC for contention control purpose. The several parameters are controlled to optimize efficient use of the wireless medium and reduce access delays for RR frames contending for the wireless medium.
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