BE
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Best Effort. Used for lowest priority time-constraint services such as email |
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ertPS
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Extended real-time Polling Service. New QoS class defined in the 802.16e amendment. Intermediary between rtPS and UGS |
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nrtPS
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Non-real-time Polling Services. Used for non-real-time services having some time constraints |
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rtPS
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Real-time Polling Services. Used for variable data rate real-time services. Example is the MPEG video |
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UGS
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Unsolicited Grant Services. Dedicated to Constant Bit Rate (CBR) services, UGS guarantees fixed-size data packets issued at periodic inervals. Example of use is T1/E1 transmissions |