Tag Archives: BehrTech

Mighty mioty and a Bit of IoT Knowledge

Like many of you, I get a lot of emails announcing some new thing going on under the general heading of technology. Most get a quick glance, register as either ho-hum or not of particular interest, and then get quietly flushed out my email box’s septic system. But a recent announcement regarding mioty gnawed at me. I wasn’t sure why, and then it hit me…

Why do they not capitalize the M?

Somehow I didn’t know that mioty is a competitor to LoRaWAN when I scanned the email, but I do know that the announcement covered the first “mioty Blueooth Low Energy Dual Stack“. EVERY WORD WAS CAPITALIZED EXCEPT MIOTY AND IT FREAKIN DROVE ME NUTS.

Yeah, I know- that’s probably a weird reason to be paying attention to a new-to-me technology… but truth be told, it was enough to hook me. I started digging in.

So Much to Learn

One of my several during-COVID areas of self-study is IoT. I got into LoRaWAN and a few others, I’m starting down the road of CWNP’s IoT-related certifications, and I give my RF Explorer and other spectrum analyzers/SDRs frequent workouts trying to capture fleeting little low-power pulses from all sorts of gadgets. I do know that “IoT” is one of those oft-abused words that some vendors try to own in their marketing of Wi-Fi systems, but the concept of IoT is far-ranging, very Un-Wi-Fi at times, and maybe even endless, when you think about it.

So.. I’m not completely IoT-ignorant, yet little-m mioty had never registered in my brainpan to date. If you too are in the dark, let me get you started. Think massive IoT. There’s an Alliance. Stolen from the mioty Alliance’s web pages, the following describes what differentiates this technology from others in the space:

The core invention behind the mioty technology is the Telegram Splitting Multiple Access (TSMA) method. As defined by the European Telecommunications Standards Institute (ETSI TS 103 357), Telegram Splitting splits the data packets to be transported in the data stream into small sub-packets at the sensor level.

These sub-packets are then transmitted over different frequencies and time. An algorithm in the base station permanently scans the spectrum for mioty sub-packets and reassembles them into a complete message. Due to sophisticated Forward Error Correction (FEC), the receiver only needs 50% of the radio bursts in order to completely reconstruct the information. This reduces the impact of corrupted or lost bursts due to collisions and increases the resistance to interference.

That should tickle the fancy of anyone who claims to do wireless…

Combine mioty and Bluetooth for Fascinating Scenarios

So now you have a starting point to go learn more about mioty, if you needed one. Let me bring you back to the announcement that started this whole thing for me- a company called BehrTech combining forces with Texas Instraments to put mioty and the latest Bluetooth (BLE 5.2) on a single chip. Remember, Bluetooth operates in 2.4 GHz, and mioty is “sub-Gigahertz” meaning 868 MHz in Europe and 915 MHz here in the states. Hopefully for some of you, just knowing the frequencies involved have your mind going… Bluetooth is a pretty short-range PAN technology, while mioty can go much, much, much farther riding those 915 MHz radio characteristics of distance and penetration. Meaning that mioty can backhaul Bluetooth traffic to other parts of the same network over large distances. All from the same chip.

This is the kind of announcement I like, as it leads to me learning something.

But why the little m?