How to improve 64 QAM usage in LTE?
Which TM mode you are using?
Implement TM4, RI2 proportion increase and ultimately 64QAM usage increase.
Sorry already using TM4 mode.
Just take into account that since LTE downlink based on AMC, high possibility to get 64-QAM when the path loss/SNR is high, i.e. near to the tower
adjust CQI step at initial access or handover to high value & enable enhanced PDCCH power control to ensure the PDCCH demodulation performance.
Can u pls share the optimistic values for CQI Adjust step value.
It is recommended that the value be changed to 100
What does this para mean?
This is the CQI step at initial access or handover. This is fast as it will be 90 or 100, however, if the BLER goes above 5%, the step will be reverted to 10. If impact seen on HOSR, use a lower value.
its using during link adaptation ,CQI adjustment can be optimized to accelerate the convergence of IBLER to achieve optimal downlink capacity.
improve you CQI then you’ll get more high order modulation, see 3GPP TS 36.213 CQI Table