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Proprietary Sub-Ghz Mesh using TI 15.4 stack.

Other Parts Discussed in Thread: TIDA-010024, CC1312R, CC1352R, CC1310, CC1352P7, CC1312R7

Hai,

I'm new to TI. we are planning to design a proprietary mesh solution in sub-ghz for Indian band (865-868 MHz). I went through many threads in this form but, I didn't got clarity.

Our requirements are,

             1. Network should be mesh. (Sleepy end device, Router, Coordinator)

             2. Network should have security features.

             3. Device should support long range & low power (Battery operated).

             4. Frequency should be Indian band (865-868 MHz)

Here is my questions,

             1. Can I use TI 15.4 stack to develop for this requirement?

             2. TI 15.4 having support mesh or not? if yes, then what are the security features in stack?

             3. Whether TI will support for development? or any other development guidelines for mesh using TI 15.4?

             4. I went through TIDA-010024 design. but I think it's not recommended for new design. any update on this?

             5. can you recommend a chip for the development, I found CC1310, CC1312R and CC1352R.

             

I think WI-SUN will suit for this application. will it suit?

But anyway, we are preferring proprietary protocol.

Thanks, In advance!

Best Regards

Bose

  • Hi Bose,

    Wi-SUN is a Sub1GHz mesh solution and it fits to what you are looking for. It uses a 15.4 MAC layer and then has the additional network, transport layer code for maintaining the mesh network. 

    TI 15.4 stack itself is purely a start network. So Wi-SUN seems like a better fit.

    For a Wi-SUN network, you would need one border router. This is either CC1352P7, CC1312R7. The other devices(router nodes) can be CC1312R1, CC1352R1 or CC1352P1.

    If you want to develop your own mesh protocol using TI 15.4 stack, it is left to you to implement the mesh protocol. The stack itself does not support it. 

    dev.ti.com/.../node

    Regards,

    Sid 

  • Hai Sid,

       Thank you for your response.

    current WI-SUN stack in TI, Support leaf node? (Sleepy node)

    Best Regards,

    Bose

  • Hi Bose,

    It does not support sleepy or leaf node at the moment. It is a feature defined in Wi-SUN FAN 1.1 specification. We currently do not have a fixed timeline for it yet. 

    Regards,

    Sid

  • Hai sid,

        Thank you for your response.

       If not supported, then we can't use Wi-SUN now. Even Zigbee also have sub-ghz, but specification not yet released.

    I think we can use Contiki-NG for our application. It supports Mesh in sub-ghz.

    Best Regards,

    Bose