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LoraWAN in Europe

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2 weeks 5 days ago - 2 weeks 5 days ago #13 by admin
admin created the topic: LoraWAN in Europe
There are different regulations all around the world, which specify how people can use LoraWAN with ISM bands in their countries. In this article we are going to explore the detailed deployment of LoraWAN in these different regions. The post is based on LoRaWAN Regional Parameters V1.0.2.

Currently there are several channels can be used in Europe to both transmit and receive. The specific channel lists are detailed in this document ETSI EN 300 220-2 V3.1.0 : As we mentioned in our previous blog posts, the channels of our MatchX Box are listed in the following table:


Now LoraWAN protocol enforces the use of g1, and the other channels can be defined by the network operator. There are three channels in g1 for bandwidth 125kHz:
  • 868.1MHz
    868.3MHz
    868.5MHz
In Europe, there is a optional field in the join response, in which the server can let the end device to know the rest of five channel frequency list. Once it is provided by the server ,the end device will update this five channel frequency list that it will use. Along with the pre-defined three channels in g1, it can use more channels to avoid collision.

It is also important to use the correct spreading factor based on the distance to avoid the collision, since the different spreading factors are orthogonal to each other. The following table listed the spreading factor and its range.


As we can see, if we use the longest range's SF, the waiting time between two sending events in a band is like 23 mins. Fortunately we can avoid long wait by using different bands together.
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Last Edit: 2 weeks 5 days ago by admin.

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