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Alliance.org LoRaWAN specification developments Nicolas Sornin LoRaAlliance.org

LoRaWAN Specification Developments

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LoRaWAN Specification

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Page 1: LoRaWAN Specification Developments

LoRa‐Alliance.org

LoRaWAN specification developmentsNicolas Sornin 

LoRa‐Alliance.org

Page 2: LoRaWAN Specification Developments

LoRa‐Alliance.org

LoRa = a radio physical layer

LORA

Antenna

Page 3: LoRaWAN Specification Developments

LoRa‐Alliance.org

LoRa can be used with any protocol

LORA

Antenna

WMbus HART

Page 4: LoRaWAN Specification Developments

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

Page 5: LoRaWAN Specification Developments

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

Page 6: LoRaWAN Specification Developments

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

Page 7: LoRaWAN Specification Developments

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.

Page 8: LoRaWAN Specification Developments

LoRa‐Alliance.org

What’s coming next ?

Page 9: LoRaWAN Specification Developments

LoRa‐Alliance.org

Examples of current developments inside the TC

• Global frequency bands support• Clever fragmentation• Roaming

Page 10: LoRaWAN Specification Developments

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

Page 11: LoRaWAN Specification Developments

LoRa‐Alliance.org

Fragmentation uplink…

LORA

Antenna

LoRaWAN

fragmentation

Data block

Page 12: LoRaWAN Specification Developments

LoRa‐Alliance.org

Fragmentation downlink …

LORA

Antenna

LoRaWAN

fragmentation

Firmware upgrade

Page 13: LoRaWAN Specification Developments

LoRa‐Alliance.org

Firmware upgrade broadcast …

1/5 2/5 3/5 4/5 5/5fragments

Page 14: LoRaWAN Specification Developments

LoRa‐Alliance.org

Firmware upgrade broadcast …

1/5 2/5 3/5 4/5 5/5fragments

Page 15: LoRaWAN Specification Developments

LoRa‐Alliance.org

Clever fragmentation layer …

1/5 2/5 3/5 4/5 5/5fragments 6/5

+Firmware update block

Page 16: LoRaWAN Specification Developments

LoRa‐Alliance.org

Roaming ..

Page 17: LoRaWAN Specification Developments

LoRa‐Alliance.org

Roaming .. Approach 1.0

Disconnect from network A Connect to network B

Easy!!

Page 18: LoRaWAN Specification Developments

LoRa‐Alliance.org

Roaming .. But real life looks more like this …

Page 19: LoRaWAN Specification Developments

LoRa‐Alliance.org

Roaming .. 

Page 20: LoRaWAN Specification Developments

LoRa‐Alliance.org

Roaming .. But what if ???

Page 21: LoRaWAN Specification Developments

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

Page 22: LoRaWAN Specification Developments

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

Page 23: LoRaWAN Specification Developments

LoRa‐Alliance.org

Thank you, come and join us…LoRa‐Alliance.org

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