Low Throughput Networks: an approach to IoT connectivity ETSI IoT workshop October 2017

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1 Low Throughput Networks: an approach to IoT connectivity ETSI IoT workshop October 2017 R. Agarwal, S. Beck, Sony Semiconductor Solutions J. Bernhard, Fraunhofer IIS J. Nickalls, Telensa Limited B. Ponsard, Sigfox 1

2 Presentation outline Solutions for IoT connectivity LPWAN and LTN systems LTN in ETSI ERM TG28 LTN characteristics R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 2

3 Full span of IoT connectivity IoT-dedicated mesh network e.g g cellular M2M e.g. GPRS, EDGE, HSPA, LTE cat1 IoT connectivity cellular IoT e.g. LTE catm1, LTE catnb, EC-GSM low power LANs/PANs e.g ah, BTLE, DECT ULE, tags e.g. RFID, barcodes 1D, 2D IoT-dedicated star network e.g. LoRa, Sigfox, RPMA, Telensa, Lfour,... R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 3

4 LPWAN vs LTN IoT-dedicated mesh network cellular IoT IoT connectivity LPWAN low power LANs/PANs short distance LTN IoT-dedicated star network R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 4

5 LTN: three work items in ETSI ERM TG28 Use Cases and System Characteristics Architecture Protocols across air interface Timeframe of LTN standards: UC & SC Architecture Protocols & Interfaces Nov'14 LTN WI adoption Jun'17 final draft for adoption Oct'17 final draft for adoption Jan'18 final draft for adoption R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 5

6 Example of LTN use cases and key drivers Smart metering / water and gas à mainly battery-operated, small & infrequent messages, indoor penetration Environment monitoring / smart agriculture à mainly battery-operated, large coverage, no latency constraint Logistics à small app. data, harmonised licence-free frequency bands Smart cities / street lighting à controlled latency, bidirectional communication R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 6

LTN characteristics (1/) high sensitivity shared spectrum star topology application message size UL/DL ack latency in UL & DL link budget long battery life random access mobility interference

7 LTN characteristics (1/) high sensitivity shared spectrum star topology application message size UL/DL ack latency in UL & DL link budget long battery life random access mobility interference immunity half duplex spectrum usage security high capacity base station infrequent & small messages asymmetric UL & DL links geolocation LPWAN LTN Main variations across LTN families R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 7

8 LTN characteristics (2/) High sensitivity receiver: MCL>150dB with Tx 25mW Long battery lifetime: >10years Large numbers of devices: 1Mmsg/day/BS in 200kHz spectrum High selectivity and immunity to withstand unpredictable shared spectrum One-hop link (star): less routing complexity Random access in UL: less overhead Half-duplex: less radio complexity Optimized for infrequent small application packets Small message size (typical bytes) Slow communication period (1 Msg/10min - 1 Msg/day) Latency not critical (typical > 10 s) R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 8

9 LTN architecture DA EP A RA C A" BS B SC NA DA RP A' SC D Glossary EP: End Point RP: Relay Point BS: Base station SC: Service Centre NA: Network Application RA: Registration Authority DA: Device Application NA: Network Application R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 9

10 LTN family overview Four different technical approaches for interface A to address different application needs Parameter 3D-UNB TS-UNB DD-UNB Lfour Channel Access Transmission Timing Specificity Random Channel Access in frequency and time Random Channel Access in frequency and slotted in time End-point Triggered Beacon Time GPS 1 Time Cooperative reception Power optimized Low downlink latency High speed mobility Sigfox Fraunhofer IIS Telensa Sony Semiconductor Solutions 1. GPS is an option; other synchronisation methods may be used. R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 10

11 Common end-point architecture All LTN families implementable in sub-ghz radio chipset àeconomy of scale, design optimisation R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 11

12 thank you. contact: R. Agarwal, S. Beck, J. Bernhard, J. Nickalls, B. Ponsard 12

Low Power Wide Area Network (LPWAN) Presented By: Dr. Hafiz Yasar Lateef Director, Telxperts Pty Ltd.

Low Power Wide Area Network (LPWAN) Presented By: Dr. Hafiz Yasar Lateef Director, Telxperts Pty Ltd. Low Power Wide Area Network (LPWAN) q Low-Power WAN Technologies are designed for machine-to-machine