Critical Communications World 2019 – Kuala Lumpur
Alexander van Overveld
20-June-2019
Mission-critical broadband
A deep dive into theS-MVNO model
© 2018 Nokia2 © 2018 Nokia2 © 2018 Nokia2
LTE is the global broadband
technology of choice
© 2018 Nokia2
Source : GSMA May 2019
© 2018 Nokia3
LTE is ready for mission critical Public Safety broadband
Security
By design
• SIM-based authentication
• Strong air interface ciphering
• Equipment, user and network
layer security
• IPSec
FeaturesFor Mission Critical
Communications
Rel 12
Proximity Services (ProSe),
Group Communications and
MC QCI 65, 66, 69 and 70
Rel 13
MCPTT, Isolated Operation
Rel 14
MCData and MCVideo
Performance• QoS Prioritization• Access Class Barring
• Admission control & pre-emption
70+Public safety LTE mission critical
broadband network contracts*
Source : I.H.S. Critcomms Broadband report Dec ‘18
© 2018 Nokia4
Secure-MVNO strikes the right balance
Public safety agencies retain the right level of control while benefiting from:
•Time to market
•Professional management
•Cost savings
•High resiliency and site density
Dedicated networkinfrastructure
S-MVNOShared network infrastructure
Pure commercialnetwork infrastructure
Applications
Subscriber Data(HSS)
Core Network(EPC, IMS etc.)
Radio Network /
Spectrum(eNodeB)
Public safety agency / Enterprise Commercial Mobile network operator (MNO) Note: Hybrid models combine two or more solutions
© 2018 Nokia5
Secure-MVNO strikes the right balance
Public safety agencies retain the right level of control while benefiting from:
•Time to market
•Professional management
•Cost savings
•High resiliency and site density
Availability
Performance Security
S-MVNO
Crowd-sourced device*& network data
Identification ofdegraded coverage
Prioritize coverageimprovements
Colossal data: up to 1 trillion measurements, per day
Availability
97% coverage assurance
across major and minor roads
AI driven network
planning
© 2018 Nokia7
Performance
Access control• Determines which users are allowed to access the
cell and when they can try to access• Access Classes (0-9, 11-15 on USIM)1Admission control (and pre-emption)• Determines which users are served and the type
of service offered• ARP (Allocation and Retention Priority)2Traffic Prioritization (Scheduling)• Determines the quality of service (throughput and
latency) for the offered services in use• QCI (QoS Class Identifier)3
© 2018 Nokia8
New QoS Class Identifiers (QCI) developed for Public Safety in 3GPP Rel 12 Prioritized packet forwarding and scheduling
Guaranteed bit rate (GBR)
QCI 65 Mission critical User Plane PTT voicePriority : 0.7
Packet Delay : 75ms
Packet loss : 10-2
Non-Guaranteed bit rate (Non-GBR)
QCI 69 Mission critical signalingPriority : 0.5
Packet Delay : 60ms
Packet loss : 10-6
QCI 70Mission critical dataPriority : 5.5
Packet Delay : 200ms
Packet loss : 10-6
15x improved throughput for PS customers recorded on live trial in Finland
© 2018 Nokia9
Commercial subscribers
Police
High priority access
Low priority access
S-MVNO LTEnetwork
High priority based on Access Class 11–15 on U-SIMfor public safety
Access control / class barringHow it works
Commercial subscribers
PoliceHigh priority access treated like emergency call
Low priority access rejected by eNodeB
S-MVNO LTEnetwork
Overload situation
eNodeBtemporarily rejects low priority subscriber access to ensure service continuity
Access control / access class barring (ACB)
© 2018 Nokia10
Commercial subscribers
PoliceHigh priority access for police
Low priority access for commercial
S-MVNO LTEnetwork
Insufficient resources New Commercial subscribers
Additional commercial subscriber request
Allocation & Retention Priority (ARP) determines bearer allocation
Allocation and Retention Priority : Admission controlHow it works
Commercial subscribers
PoliceHigh priority access for police
Low priority access for commercial
S-MVNO LTEnetwork
Insufficient resources New Commercial subscribers
ARP temporarily rejects creation of new bearer for additional subscriber –admission control
Bearer allocation rejected
© 2018 Nokia11
Security
3GPP security mechanisms
• Authentication
• Encryption
• Integrity
1Security orchestration and automated response (SOAR)
• Machine learning
• Closed loop automation
2Device security• Determines the quality of service (throughput and
latency) for the offered services in use
• QCI (QoS Class Identifier)
3
Restricted / Controlled access
Advanced encryption
No data sharing with Google/apps
Secured bootloader
Device Security: Customization
© 2018 Nokia12
LTE can complement existing PMR/LMR networks
PMR-LTE Interworking solution for interoperability
PMR LTE for PS
PMR UE
PMR
Group Communications or MC-PTT, MC-Data
PMR CORE
WirelessRoIP GW
Redundant WirelinePMR-LTE GW
• Interconnects multiple talk groups
• Feature mapping with TETRA/PMR
• Does not use radio resources
• Requires custom protocol stackimplementation
• Easy to deploy
• Cost efficient
• Basic MC-PTT /Voice
© 2018 Nokia13
S-MVNO for mission critical LTE
Availability
Performance Security
S-MVNO
Quick road to LTE broadband
Low investment
Mission critical reliability and performance
Secure