Answer:
It is used for VBR real time traffic for example MPEG video. Unlike UGS where in fixed allocation is made by BS, here BS regularly polls MS to find out allocation need. Hence bandwidth is allocated on need basis and is adaptive in nature. For this wimax QoS type Min. reserved traffic rate and MST need to be mentioned separately. For UGS and ertPS Min. reserved traffic rate and MST are both same. QoS parameters are same as UGS.
| Previous Question | Next Question |
| Define UGS class in Wimax QoS? | Define ertPS class in WiMAX QoS? |