decoding using npdsch_ue failed
ahmedelbushra opened this issue · comments
Issue Description
I am using RTL-SDR to detect and decode NB-IoT, I was able to detect but not decode it.
Setup Details
step1: run ./cell_search_nbiot -b 20
step2: ./npdsch_ue -f 815.9e6
Expected Behavior
Actual Behavior
The cell ID detection might not work super reliably depending on your RF situation. Have you verified there is an NB-IoT carrier at all in on that frequency? You can do that with any spectrum monitoring app.
I am RTL SDR Gqrx to view the spectrum : the cell_search_nbiot detected 2 cells,
The output of the Gqrx :
It show no signals in that range.
Hard to say if there is an NB-IoT carrier at all. The NPSS power is very low, too low to reliably sync on it anyway. Maybe try to get closer to the cell. See here how the spectrum should look like.