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LoRa network – a short introduction
Irene de Ruijter, Erik Bruinzeel & Timme Hovinga
KPN Internet of Everything
18 maart 2015
KPN LORA 1
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Who are we?
Erik Bruinzeel Technical Product Manager Internet of Everything
Timme Hovinga Technical Product Manager Internet of Everything
Irene de Ruijter Program Manager IoT Academy
Internet of Everything www.kpn.com/ioe Twitter: #kpnioe Linkedin: KPN IoE
LoRa is an open network technology comparable to wifi and bluetooth, but with a coverage of 3-15 km
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In 2015, KPN will start the national roll-out of LoRa, a new network technology
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With LoRa, devices can be connected to the internet over a long range
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With LoRa, it’s also possible for sensors to share relevant data
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Application examples
Pilot case:
Client:
Developer of LoRa applications.
Challenge:
Measuring and reporting on the contents of
beertanks that are in cellars, from a distance
with the aim to save costs.
Solution:
By connecting the beertanks to LoRa they
only have to be refilled when necessary. The
result is less unnecessary kilometres and
emergency deliveries on Saturday nights.
Suppliers have realtime data on the
temperature and bar owners cannot refill
the tanks with a cheaper brand of beer
without being noticed.
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What is LoRa exactly? LoRa is a wide area network for IoT devices
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- Cellular technology - Energy efficient communication over long distances - Adaptive data rate based on signal strength - ETSI compliant ICM frequency band - KPN is a member of the LoRa Alliance
Class A, B & C Different classes for different usecases
Bi-directional end-devices (Class A): End-devices of Class A allow for bi-directional communications
whereby each end-device's uplink transmission is followed by two short downlink receive windows.
The transmission slot scheduled by the end-device is based on its own communication needs with a
small variation based on a random time basis (ALOHA-type of protocol). This Class A operation is the
lowest power end-device system for applications that only require downlink communication from
the server shortly after the end-device has sent an uplink transmission. Downlink communications
from the server at any other time will have to wait until the next scheduled uplink.
Bi-directional end-devices with scheduled receive slots (Class B): In addition to the Class A random
receive windows, Class B devices open extra receive windows at scheduled times. In order for the
End-device to open its receive window at the scheduled time it receives a time synchronized Beacon
from the gateway. This allows the server to know when the end-device is listening.
Bi-directional end-devices with maximal receive slots (Class C): End-devices of Class C have nearly
continuously open receive windows, only closed when transmitting. Class C
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LoRa is extremely energy efficient Due to limited time windows and data usage
A LoRa device should work for up to 10 years on 1 AA battery
The data provides insight on the battery status…
…and the status of the connection
Adaptive Data Rate. 2D case, flat landscape, 868 MHz
Understanding the LoRa network Following the OneM2M architecture concept
High level Signaling Keys (authentication & security) and data exchange
Mote
AppR
Different layers Semtech is the main driver behind the technology
LoRa Radio
LoRaWAN devAddr
Client Applicatie
Semtech`SX1272
Gateway SF
NwkSKey+AppEUI
AppEUI+AppsKey
STM32L151 processor
NwkS App
Semtech SX1272
STM32L151
LoRaWAN LoRaRadio Applicatie
KPN Network
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LoRa modules can be very small
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Roaming agreements are in progress with Belgium and France (2016)
Thank you
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Erik Bruinzeel, Irene de Ruijter, Timme Hovinga Contact us or check kpn.com/LoRa
(+31)(0)88-6601034
In/KPN IoE
#kpnioe