-What are the technological considerations?
Jarno Majava, Bittium
Using LTE Devices
in Critical
Communications
Paradigm change
Hardware
Software
Certifications
Lifecycle
Conclusions
Contents
3
Paradigm change LTE brings new applications and broadband data for PPDR
Use of COTS technologies and products increasing Wide range of new applications But: The PS user needs are specialized!
MCX & real-time applications
3GPP Public Safety features
PS operator certification
Long device lifetime
Water resistance
Security updates & certification
Battery capacity, charging options
PTT and Emergency keys
DMO, ProSe
Glove usage
High-power speaker
MIL grade mechanics
PS accessories
Frequencies (B14, B28, B39, B68 etc…)
Price
LTE PS Device Requirements
Chipset(s)
• Performance requirements
• Frequency bands
• PS features
• Cost, licensing terms
• Lifetime, availability
Mechanics
• Size
• Materials
• IP-level
• Durability
• Usability
Interfaces
• Connectivity
• SIM(s)
• Memory card
• Battery
• Charging
• Accessories
Security
Costs, benefits, risks….
Hardware considerations
Supply chain: DIY / Buy / Partner?
7
Secure (physical) design
Hardware root of trust
Verified code execution
Hardware security
Supply chain security
8
• Choose SoC that is fit for the purpose
• Amend SoC with additional chips that are
needed for required security level e.g.
tamper protection, secure key storage
• ”Blow the fuses” to prevent unauthorized
debugging and firmware access
• Apply proper enclosure/casing
Secure (physical) design
Operating system
• Ecosystem, interoperability
• Android version?
• Google or non-GMS?
• Vanilla or custom?
HW optimization
• RF / antenna
• Display
• Camera
• Audios
• USB etc
PS enablers
• QCIs, eMBMS, ProSe…
• APIs, SDKs
• APNs
Services
• FOTA, GMS, IMS/VoLTE, MDM….
• MCX etc. applications
Release planning
• New features
• Fixes, updates
• Google releases
Testing
• Conformance
• Plug tests
• Google CTS
• Field tests
• Customer trials
Security
Costs, benefits, risks….
Software considerations
Architecture
Authentication
Secure boot
Encryption
Tamper detection
Applications, cryptos
Updates, patches
VPN, MDM
Application management
Remote attestation
OTA firmware updates
End-to-end security
Certifications
System Verification
•Concept verification
•Accessory testing
•Env/Mech testing
•IOP testing
•IOT
•Field testing
•GSM
•WCDMA
•LTE
•BT/WLAN
Pre- Conformance
•Regulatory
•FCC / IC
•E911
•HAC
•Type approval
•PTCRB, GCF
•CTIA
•IEEE 1725 (Battery)
•CTIA OTA
•WiFi RF perf
•Certifications
•USB
•BQP
•Wifi
Conformance
•Regulatory
•FCC/IC/R&TTE
•E911
•HAC
•SAR
•Safety
•Type approval
•PTCRB, GCF
•CTIA
•IEEE 1725 (Battery)
•CTIA OTA
•WiFi RF perf
•Certifications
•USB
•BQP
•Wifi
Operator testing
•Lab entry criteria
•Regulatory grant
•Type approval done
• Operator pre-testing
•Operator lab testing
•Operator field testing
Change Management
Error Management
Time
Certification for PS
System Verification
•Concept verification
•Acessory testing
•Env/Mech testing
•IOP testing
•IOT
•Field testing
•CpK
•GSM
•WCDMA
•LTE
•BT/WLAN
Pre- Conformance
•Regulatory
•FCC / IC
•E911
•HAC
•Type approval
•PTCRB
•CTIA
•IEEE 1725 (Battery)
•CTIA OTA
•WiFi RF perf
•Certifications
•USB
•BQP
•Wifi
Conformance
•Regulatory
•FCC/IC/R&TTE
•E911
•HAC
•SAR
•Safety
•Type approval
•PTCRB
•CTIA
•IEEE 1725 (Battery)
•CTIA OTA
•WiFi RF perf
•Certifications
•USB
•BQP
•Wifi
Operator testing
•Lab entry criteria
•Regulatory grant
•Type approcal done
•Operator pre-testing
•Operator lab testing
•Operato field testing
Change Management
Error Management
Addition PS approvals and tests
•KPIs
•MCX applications
•Plug-tests
•Security certifications
Time
Device availability • New COTS devices launched every
6-12 months • Lifetime of chipsets and other
components (EOL) • Leadtime of critical components
Technical support • Software updates • Security patches • Dedicated / generic support
Warranty • Standard or extended
Lifecycle considerations
Mobile device value chain
PWB
Products
End
-Cu
stom
ers
OS
Manufacturing
Processor
Display, touch
Battery
Sales channel
Sales channel
Sales channel
Other component vendors
SW evolution
OS patch
App patch
Sec patch
Firmware upgrade
Release
Approval
R&D
Testing
Version Control
Continuous product development
OS patch
New feature
Sec patch
OS upgrade
Release
Approval
R&D
Testing
PS Device Value Chain
PWB
Product
CU
STOM
ER
OS
Manufacturing
Processor
Display, touch
Battery
Other component vendors
DELIVERY
PS apps
RFQ
SUMMARY
• BYOD concept encourages use of personal devices for work
• But: as we have seen BYOD doesn’t really work for public safety
• Special requirements call for specialized devices
• Procurement model vs. mobile device ecosystem & processes
• How about using your professional device for personal use?
Thank You!