LoRa Network Repeater

Hi !

I’m looking for some help for a newbie of IoT over here (don’t even know if i’m at the right place).
Here is my problem :
I’m searching (for about a week) about something like a repeater for the LoRa Network. I’ve got an antenna a bit far of my building so I can’t receive any signal in my basement, so I would like to get (if it exist, i’ve seen topics about the fact that LoRaWAN repeater doesn’t) a repeater to get the signal of the antenna of the Internet access provider (who provide the LoRa Network) and “amplify” it to my basement

Thanks,

Hey @Beanaster!

It seems that you will need a custom solution to your problem:

I did not find any existing project unfortunately

Let me know if you ever find something!

Hey,

Thanks for replying,

I’m thinking about taking a simple amplifier (Frequency band of 868 MHz (Europe)) connect it to an antenna and here is my LoRa repeater !
What do you think about it ?

I was thinking to something like this : https://www.reichelt.com/fr/fr/amplificateur-de-signaux-sans-fil-smanos-sr1000-p204242.html?PROVID=2788&gclid=CjwKCAiA4t_iBRApEiwAn-vt-zK5ih5aJF02u5Zeuo6dYnA8ENf6z06eWXpb66rcthO7pz2ll-_AbBoC6EIQAvD_BwE&&r=1

Hey @Beanaster

It seems that the amplifier you linked will only be compatible with Smanos systems. I can’t recommend it.
I’m not so sure how you could do it homemade but I’ll ask around in the office!

Hey @Beanaster

We’re pretty much convinced that you won’t be able to find an out-of-the-box solution as LoRaWAN was not designed to work with repeaters: http://microchipdeveloper.com/faq:3200

I don’t know if this is an option for you, but LoRaWan might not be the best technology for you: https://www.link-labs.com/blog/when-should-the-lorawan-specification-be-used

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Hey @Magmator !

Thank you for replying,

So, just to make sure we clearly understand each other, I wan’t to find a tool who could take LoRa frames, amplify them, and release them.
If you tell me I can’t do it I believe you, just want to make sure.

Thanks anyway !

Hey @Beanaster

It should be noted that repeaters for LoRaWAN networks are unlikely to exist (by design!). That being said, if you wish to only extend range for a direct LoRa connection, this is certainly possible.
Example: http://www.invisible-systems.com/product/ultra-rf-repeater/.
This manufacturer says the following on their product page:

Therefore, not only will it not work for LoRaWAN, but it most likely will only work with their LoRa products.

Also, here’s an article about extending LoRa range.

I hope this info helps out.

Sincerely,

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Hey @scharette

I understand that there is no option for me for an out of the box product who could do what I want.
I will do some more researches about a home made repeater.

Thanks anyway for you replies and help @Magmator and @scharette !

Have a nice week-end !

Hi, i’ve been developing a solution for this, it’s a laboratory experiment for now.

i’m using a gateway made with a raspberry pi 3 and a rak831 concentrator.

The idea is to use a gateway with no internet connection to repeat the messages received in a frequency pool.

I modify the packet forwarder program running in the raspberry. This program has five threads that work in five different tasks and use a loragw library to communicate with the concentrator. I leave only one thread: the one who that receives the lora packets and modify it to resend the packet in other frecuency pool, used by the gateways.

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@luchosteam
Sounds like a pretty cool idea!
Do you have a link to the work you are currently doing or is it too experimental to share yet? :slight_smile:

@scharette, i’ve got it in a private repository from my university, looking to share it soon.

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