Comment by ajross
FWIW, the "Suzi" thing they're talking about seems like an attempt to compete with LoRa, which while technically an open standard is entirely dominated by Semtech.
It's not clear to me why the manufacturers aren't just making LoRa radios. This feels like an xkcd 927 situation to me.
The sub-GHz Suzi is for LPWAN or Low Power Wide Area Network, similar to LoRa, SigFox and Wi-Fi HaLow.
LoRa PHY is proprietary by Semtech but LoRaWAN the data link layer is open, that's why the manufacturers aren't just making LoRa radios.
SigFox is full-stack proprietary LPWAN solution but the founding company already went south.
Currently the main open standard alternative to LoRa is IEEE Wi-Fi HaLow.
The main problem with these LPWAN standards, however, is that all of them struggling with limited Line-of-Sight (LoS) or Non-Line-of-Sight (NLoS) LoS environment that's very common in LPWAN. For example LoRa is very low power but its limited chirp spread spectrum (CSS) based modulation is bad for any limited LoS environment. In addition, its spreading factor (SF) only work for a single channel per user.
I'm now working on the LPWAN PHY alternative that's much better for very limited LoS than LoRa. Looking forward to benchmark against Suzi.