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LoRaWAN Specification
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LoRa‐Alliance.org
LoRaWAN specification developmentsNicolas Sornin
LoRa‐Alliance.org
LoRa‐Alliance.org
LoRa = a radio physical layer
LORA
Antenna
LoRa‐Alliance.org
LoRa can be used with any protocol
LORA
Antenna
WMbus HART
LoRa‐Alliance.org
What protocol can we use ?
LORA
Antenna
6LoPan
• Too chatty• Node is tied to a gateway• Very difficult mobility support• No security at MAC level
LoRa‐Alliance.org
LoRaWAN1.0
LORA
Antenna
LoRaWAN
• Close ALIGNMENT WITH IEEE 802.15.4 in order to preserve higher layers• But seamless mobility , no handover• Minimal protocol overhead
LoRa‐Alliance.org
LoRaWAN design objectives• Designed for virtualized CLOUD BASED network layer:
• Simpler base stations, less maintenance• All NW antennas behave as one, no handover necessary.
• Close ALIGNMENT WITH IEEE 802.15.4 in order to preserve higher layers• 6LoWPAN compatibility• IEEE sensor address space
• MINIMAL ENERGY REQUIREMENTS: Eliminate useless overheads.• Enables SMOOTH VERSIONING
LoRa‐Alliance.org
LoRaWAN device classesCLASS NAME INTENDED USAGE
A(« all »)
Battery powered sensors, or actuators with no latency constraintMost energy efficient communication class.Must be supported by all devices
B(« beacon »)
Battery powered actuatorsEnergy efficient communication class for latency controlled downlink.Based on slotted communication synchronized with a network beacon.
C(« continuous »)
Mains powered actuatorsDevices which can afford to listen continuously.No latency for downlink communication.
LoRa‐Alliance.org
What’s coming next ?
LoRa‐Alliance.org
Examples of current developments inside the TC
• Global frequency bands support• Clever fragmentation• Roaming
LoRa‐Alliance.org
Native support for different Frequency bands ..
• Europe 868 ISM band• Europe 433 ISM band• Russia• North America 900 band• China 780 band
• Europe 868 ISM band• Europe 433 ISM band• North America 900 band• China 780 band• Korea• Japan• Brazil• India
LoRa‐Alliance.org
Fragmentation uplink…
LORA
Antenna
LoRaWAN
fragmentation
Data block
LoRa‐Alliance.org
Fragmentation downlink …
LORA
Antenna
LoRaWAN
fragmentation
Firmware upgrade
LoRa‐Alliance.org
Firmware upgrade broadcast …
1/5 2/5 3/5 4/5 5/5fragments
LoRa‐Alliance.org
Firmware upgrade broadcast …
1/5 2/5 3/5 4/5 5/5fragments
LoRa‐Alliance.org
Clever fragmentation layer …
1/5 2/5 3/5 4/5 5/5fragments 6/5
+Firmware update block
LoRa‐Alliance.org
Roaming ..
LoRa‐Alliance.org
Roaming .. Approach 1.0
Disconnect from network A Connect to network B
Easy!!
LoRa‐Alliance.org
Roaming .. But real life looks more like this …
LoRa‐Alliance.org
Roaming ..
LoRa‐Alliance.org
Roaming .. But what if ???
LoRa‐Alliance.org
Roaming..
• So roaming includes many different scenarios• Clever roaming implies being connected to several network simultaneously
• Roaming is a back‐end interface problem to solve
LoRa‐Alliance.org
Roaming..
• Roaming is about finding a solution to:• Back‐end to back‐end secure connection• Operator to operator clearing & billing• Localizing the end‐devices• Transparent device provisioning across multiple networks
LoRa‐Alliance.org
Thank you, come and join us…LoRa‐Alliance.org
LoRa‐Alliance.org