https://nl.mathworks.com/help/5g/ref/nrlowpaprs.html
nrLowPAPRS - Generate low peak-to-average power ratio (low-PAPR) sequence - MATLAB
This MATLAB function generates type 1 low peak to average power ratio (low-PAPR) sequences, seq of length m, as defined in TS 38.211, Section 5.2.2 [1].
generatelowpeak