Implementing Multi-Radio Technology for IoT Applications - Emmanuel Katto

Hello All, I am Emmanuel Katto from Uganda. I’m developing an IoT device that requires simultaneous connectivity to multiple wireless networks (e.g. LTE-M, and Wi-Fi). I’m using a Telit module, but I’m struggling to implement the multi-radio technology. I’d like to know how to Integrate multiple radio interfaces into a single module or separate modules. Can someone share tips?

Emmanuel Katto

Hello Emmanuel,

First of all, welcome to the Telit Cinterion Developer Community!

Regarding your question, there are two main options I can suggest:

  1. You can use one of our Smart Modules (SE250B4 Series) with Android, that supports LTE Cat 4, Wi-Fi, Bluetooth, and has an embedded GNSS receiver. These are relatively powerful modules with 2 GHz Qualcomm quad-core ARM Cortex processors. They require some experience with Linux/Android on embedded platforms but can offer a rich multimedia experience as well as reliable wireless connectivity.

  2. Alternatively, you can base your device on one of our standard cellular LPWA/LTE/5G modules (e.g. EXS82-W for LTE Cat.M/NB/2G) and complement that with one of our Wi-Fi & Bluetooth modules (e.g. WE310F5). This will give you greater flexibility in the design process and the solution may be based even on a simple MCU.

For a list of available products please refer to and the tab “Products & Services”. There you will find an overview of all products sorted by the technologies they support: 5G, LTE, LPWA, Wi-Fi & Bluetooth, and Smart Modules (supporting multiple wireless communication technologies).

When it comes to the physical design and hardware-related concerns, please note that having multiple wireless technologies working within a single device / on one PCB can easily cause problems with interference/spurious emissions and other RF-related issues, hence this requires careful schematic and layout design. If your device will require Wi-Fi and cellular connectivity, then you may also need to implement some switching mechanism (see: wireless coexistence), to prevent both antennas from operating at the same time.

Best Regards,