ITU Regional Workshop for CIS on The Internet of Things (IoT) and Future Networks Saint Petersburg, Russia, 19-20 June 2017

1. City scale and nationwide LoRa network:
deployment challenges, best operating practices, outlook
Alexander Trubitsin
Head Of Business Development Lartech Telecom
ITU Regional Workshop for CIS on The Internet of Things (IoT) and Future Networks
Saint Petersburg, Russia, 19-20 June 2017

2. Idea: LoRa, LPWAN, LoRaWAN
LPWAN (Low-Power Wide-Area Network) is a type of wireless telecommunication wide area network designed to
allow long range communications at a low bit rate among things (connected objects), such as sensors operated on
a battery.
2G
3G 4G
2G, 3G, 4G strategy LPWAN strategy
Increase
bandwidth
Reduce
consumption
and cost
LoRa is a unique modulation technique from Semtech.
LoRa modulation lead to very low receiver sensitivity (down to -134 dBm), which combined to an output power of
+14 dBm means extremely large link budgets: up to 148 dB.
VSAT
LPWAN
5G
4G
2G/3G
ZigBee
RFID
Blue
Tooth
Wi-Fi
meters hundreds of meters kilometers
Bandwidth
Range

3. COMBINING THE BEST
NetID 28
LARTECH TELECOM is connectivity provider in Internet of Thins area.
Lartech’s business is based on:
• Base stations network
• Telecom platform including Network Server Platform and service lar.cloud
• R&D department (includes 25 SW/HW engineers and analysts)
Our main goal is high quality communication service and to be #1 IoT connectivity
provider in Russia.
At the moment, our company is actively expanding the geography of presence,
constantly extending the network coverage, establishing new partnerships with
manufacturers, integrators, service and utility companies.

4. HOW DOES IT WORK?
Wireless connection
Low power consumption up to 10
years from AA battery
Minimal OPEX
Range up to 15 km
Wide coverage area
Robust communication
Network Server Platform AMR
Secure connection
Storage
Data processing
Web applications
BASE
STATIONS
USERSDEVICES
CLOUDMETERS, SENSORS, ETC.
ELECTRICITY
WATER/GAS/HEAT
METERS
SECURITY
SYSTEMS
LIGHTING
IoT Operator
LARTECH TELECOM

5. COVERAGE
Telecom infrastructure of partners which includes more than 4500 objects is adopted for
network deployment.
Lartech Telecom installs its equipment by establishing partnership for LPWAN
deployment.
Partners provide protection of equipment, uninterrupted electricity, round-the-clock
access for Lartech’s service team.
Lartech Telecom provides commercial network installation within 30 days for customers
projects.
Lartech Telecom coverage
Q2 2017
Saint Petersburg
coverage map
Network
User node
Online
service

6. INFRASTRUCTURE: BASE STATIONS

7. INFRASTRUCTURE: NETWORK PLATFORM
JOIN SERVER
LoRaWAN 1.1
(End-point device
connection)
SOPHROSYNE
network platform
DEVICE
PROVISIONING
LoRaWAN 1.1
LoRaWAN CORE
NETWORK
SERVER
LoRaWAN 1.1
DATA STORAGE &
PROCESSING
LoRaWAN 1.1
PUBLIC
APIs
Key
storage
DEVICE
MANUFACTURER
USER SPACE
LoRaWAN 1.1
REST
gRPC
Web socket

8. NETWORK MONITORING AND TECHNICAL SUPPORT
1. Applications control
• status tracking
• processing control
• reports
• analytics
2. Network monitoring
• status tracking
• BS geolocation control
• BS traffic control
• analytics
3. Technical support service

9. LoRaWAN RANGE TESTING IN URBAN AND RURAL AREAS
4,3 km, 45 meters height of BS installation
28 km, 46 meters height of BS installationRural area: tester in the parking
Urban area: tester in the IoT laboratory
BS – IoT lab
4,3 km

10. LRTX-868-XXX LoRaWAN RF MODULES
General features
• Comply with LoRaWAN Class A, C
• Over-The-Air Programming
• Command interface over UART
• Compact size
• SMT or through hole mounting
• Class C RF modules with LDO
• PCB antenna
• u. FL connector for external antenna
Operational
• Power supply +5…24V Class C, +3,3V Class A
• Temperature range -40…+85°C
• UART level converter
• MCU ARM Cortex-M0+
• Interfaces: GPIO, SPI, SWD, ADC, I2C
RF features
• 868MHz frequency range
• TX power 25mW
• LoRa modulation
• Receiver sensitivity down to -148dBm
• Up to 15km coverage
Antenna Class A Class C
u.FL
connector
LRTX-868-UFL-A LRTX-868-UFL-C
PCB
antenna
LRTX-868-PCB-A LRTX-868-PCB-C
Product range

11. Network
platform
CloudLartech Telecom
BS infrastructure
lar.cloud SERVICE FOR HW AND SW DEVELOPERS
Lartech’s Public API is tool that software developers use to receive data in IoT
application from end LoRaWAN devices. Cloud service lar.cloud allows to store
data and includes analytics and visual dashboards.
Lartech Telecom provides free access to lar.cloud for developers.
web/API
Cloud

12. LoRa Geolocation
LoRa Geolocation algorithm:
• Base stations determine timestamps, RSSI, SNR for every Uplink
from end nodes
• At least three base stations receive signal, geosolver calculates
coordinates using TDoA algorithm
• Algorithm doesn’t require to calculate radio signal’s time of flight
from end nodes
• Any Uplink from end nodes will use for coordinates calculation
LoRa Geolocation
• LoRaWAN only
• 10 years from AA battery
• Low cost
• Indoor and outdoor
• Immunities to GSM jammers
• Low accuracy
GPS
• GPS+RF channel (GSM)
• High power consumption
• High cost
• Outdoor only
• Block by GSM jammers
• High accuracy
LoRaWAN base station with TDoA
Lartech’s LoRa geolocation pilot zone

13. LoRaWAN 1.1 SPECIFIACATION – ROAMING
RejoinReq*
NetAID, DevUID
RejoinReq
DevUID
DevAddrB, NetBID, Channels, RX param
JoinResp
NetSKey
Operator BLartech Telecom
JoinResp
DevAddrB,
NetBID,
Channels,
RX param
JoinReq
DevUID
DevAddrB, NetBID, Channels, RX param
JoinResp
NetSKey
Network Server
End
node
Network B authenticates the Uplink
and forward to Lartech Telecom
Operator BLartech Telecom
Lartech Telecom authenticates the frame,
deduplicates and forwards the applicative
payload to customer
Application server
Uplink
signed with NetSKey**
End
node
Passive Roaming
Uplinks received by multiple networks simultaneously, Downlinks
sent via selected GW. Totally transparent to the device.
Handover Roaming
Device is handed-over to another network operator.
Data-plane is still routed through the home network.
* Periodic broadcast request.
** Network Session Key for Uplink.

14. OUTLOOK AND FORECAST
The European
Commission predicts
that the EU market value
of the IoT is expected to
exceed EUR 1 trillion in
2020.
Cisco predicts that IoT
will generate USD 8
trillion worldwide in
Value at Stake1) over the
next decade (2015-
2024).
Machina Research
estimates the total IoT
revenue opportunity at
USD 3 trillion in 2025 (up
from USD 750 billion in
2015).
IoT SEMICONDUCTOR MARKET
SCHEDULED
DATE
COVERAGE NUMBER
of SUBSCRIBERS
NUMBER
of BSs
Q1 2018 7 regions >500 000 >500
Q4 2019 Federal network >1 000 000 >2000
LARTECH TELECOM NETWORK DEPLOYMENT PLAN
Source: IC Insights, June 2017
Source: Roland Berger, March 2017

15. Q&A