How RR and QOS scheduler works in LTE? What is the difference between QOS and PF sceduler?

Question

Non stand alone architecture is 4G and 5G dual connectivity architecture. In this Will network enforce 4G QOS or 5G QOS policies for the data?How it is handled at MAC

Answer 1

Hi Poonam,

Scheduler implementation is totally operator specific, below are some common implementation .
Round Robin scheduler will give equal priority to all channels and schedule all channels in some interval, so all channel will get scheduled in this scheduler.

QOS scheduler is an quality based scheduler and it selects channels based on the QCI table. Refer following image -

Each channel will have its own QCI , based on which QIOS scheduler will schedule.
PF scheduler is an Proportionally fair scheduler and it shares resource based on the data availability in each channel. it considers CQI, data size ,last scheduled SF.