Scheduling method for supporting quality of service (QoS) in wireless local area network (WLAN)
AssigneeNational Chiao Tung University
InventorsChing Huang, Yu Fan
Life of this patent
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Abstract
A method for polling of stations in a Wireless Local Area Network (WLAN), comprising the steps of: obtaining Quality of Service (QoS) information related to the stations; assigning two timers to each WLAN service requiring QoS guarantee, one for uplink transmission and the other for downlink transmission; starting a Controlled Access Period (CAP) when a minimum timer Tm is below the threshold Tthr; polling the station with the minimum timer; updating the minimum timer after a polling message is sent; quitting CAP and permitting the resource contention if the minimum timer Tm is larger than the threshold Tthr.
Claims6
A method for polling of stations in a wireless Local Area Network (WLAN), which comprises the steps of:
- Obtaining Quality of Service (QoS) information related to the stations;
- Assigning two timers to each WLAN service requiring QoS Guarantee, one for uplink transmission and the other for downlink transmission;
- Starting a Controlled Access Period (CAP) when a minimum timer Tm is below the threshold Tthr;
- Exchange message with the station with the minimum timer (based on the need for polling, or downlink and polling);
- Updating the minimum timer after polling message is sent;
- and
- Quitting CAP and permitting the resources contention for other stations if the minimum timer Tm is larger than the threshold Tthr.
Dependencies are inferred from the claim text.