This is my first post here so I hope I’m doing this correctly.
I found this forum by accident and wanna try.
Since some time my device isn’t able to use 256QAM for DL. It just uses 256QAM for UL and only 64QAM for DL. The device does know 256QAM since it made 256QAM some days ago, now it doesn’t. I’m confused and I don’t know what to do.
Someone said a high BLER is causing the eNb to keep 64QAM. The BLER is between 12-17% - depending on the used LTE Band. Is this correct? If so, what can I do to reduce the BLER to get 256QAM DL back?
Thanks in advance.