H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/24 (2006.01) H04L 12/28 (2006.01) H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2359593
To provide suitable QoS in a WLAN distributing voice, data and multimedia broadband in any end-to-end context, RF link errors are monitored in real time and applied as input to recovery and corrective procedures. The performance measures considered in normally evaluating a link QoS include throughput (bandwidth), delay, jitter and bit error rate (BER) but these alone. do not properly evaluate a QoS for real-time services. In the exemplary embodiment, the frame error rate (FER) is compared with a threshold to define quality. If the error threshold is exceeded recovery procedures are instituted to restore the desired signal quality. The exemplary WLAN system has a capacity for providing isochronous services, such as broadband multimedia (including high speed video) and real-time toll quality voice service, and includes real time error detection and recovery procedures to maintain a desired individualized Quality of Service (QoS) appropriate for individual services.
Chow Albert T.
Kim Jinman
Miller Robert Raymond II
Ying Wenchu
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
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