This document discusses the transition from narrowband critical communications technologies like TETRA to broadband technologies like LTE and 5G for public safety and other critical users. It notes that narrowband technologies will continue to be used for many years but that national transitions to critical 4G/5G will occur during this decade. Key factors in the transition include technology maturity, standards, spectrum availability, user adoption, and replacement cycles for existing networks. The document also outlines 3GPP's roadmap for developing critical communications capabilities in Release 18 of 5G standards to better support needs like coverage, reliability, and large-scale incidents.

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Road to Broadband
Tero Pesonen, TCCA vice chair and CCBG chair
7th October 2021

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4th generation
2nd generation
1st generation
Analogue
conventional
Analogue
trunking
Digital
trunking
Narrow band
Complementary
broadband
Mission
critical LTE/5G
Digital
trunking
Wide band
Critical communication generations

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• Standard support
• Implementation
support
• Multivendor market
• Interoperability
• …
• Legal and regulation
including spectrum
• Operational model,
Financing
• Implementation, roll-out,
upgrade cycle
• Availability – coverage,
hardening …
• Integrations
• Trust and commitment
• Standard Operating
Procedures (SOP)
• Gained benefit
• Parallel use
• …
Elements for Broadband transition
Technology Environment Users

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Top level PPDR Broadband roadmap
Standardisation,
Regulation,
Concept building,
Gradual services
NOW
Standardisation,
Implementation,
First movers
operation, wide
complementary use
2019 - 2021
Standardisation,
Wide roll-out,
Service intake,
Gradual shift,
New operational
models
2022 - 2030
PPDR = Public Protection and Disaster Relief

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Window for
managed transition
from narrow band to
critical broadband
2020 – Managed transition
2015 2030
2010
TETRA/TETRAPOL/P25 technologies are available
Critical LTE data + voice technology available
2035
2025
2020
UK / S-Korea
planning
to move to LTE
End of technical
lifetime for number
of national PPDR
networks
Expected obsolescence
of GSM-R

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Presentation on behalf of TCCA www.tcca.info @TCCAcritcomms
Newest Broadband topics
PPDR Project news
• Belgium chosen MOCN,
timeline available
• New Zealand
procurement in progress
• Australia Proof of
Concept starting
• Switzerland, Request for
Information
• Finland, Device
procurement
TCCA CCBG Task Forces
Waiting publication
• 5G for Critical
Communications
• 450 MHz
• Broadband Device
Procurement
Closing finalisation
• Broadband
Applications
• Device API
Launching
• Callout
• Massive MC video
• Critical
Communications
requirements for
satellites
• Critical
Communications
Cyber Security
3GPP Release 18
prioritisation
Co-operation
• ETSI MCX Plugtests
• GSF MCS stream
• NIST MCS-Taasting
• …

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TCCA input for
3GPP Rel18 RAN workshop
Tero Pesonen, 7th June 2021
RWS-210492

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Core Critical
Communications
requirements
• Coverage
• Availability
• Resilience
• Performance
• Scalability
• Functional suitability
Connection is literally the lifeline

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Presentation on behalf of TCCA www.tcca.info @TCCAcritcomms 9
Critical Communications sector
requirements for 3GPP Release 18
Need for 5G enabled
operational model
MC over 5G MBS and Prose
UE to UE Relay (inc. multi-hop)
Vehicle Mounted Relay (VMR)
5G over satellite connectivity
Location services (Ranging, Enhanced Sidelink location)
NR coverage enhancement
Multicast/Broadcast capability
Mobile Integrated Access and Backhaul (IAB)
High Power UE < 1GHz bands (in addition to band 14)
Slicing enhancements
Because
Connection
is the
lifeline
Market growth need
Below 5 MHz NR Channel Bandwidth
MC End-to-end testing and certifications
capability inc. server-to-server

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Summary
Time to make environment and user ready
Narrowband such as TETRA will serve for a long time
National PPDR Critical 4G/5G transition during this decade

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Questions?
Tero Pesonen
TCCA Vice Chair & Director, CCBG chair
E-mail tero.pesonen@tcca.info
Mobile +358 50 544 7347
fi.linkedin.com/in/teropesonen
LinkedIn
Facebook www.facebook.com/tandcca
Twitter @tandcca
YouTube www.youtube.com/user/tandcca
TCCA CCBG
https://tcca.info/broadband/critical-
communications-broadband-group/
Find TCCA also on
LinkedIn
www.linkedin.com/company/tcca-critical-
communications/
Facebook www.facebook.com/tccacritcomms
Twitter @TCCAcritcomms
YouTube www.youtube.com/user/tandcca

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Supporting material

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Presentation on behalf of TCCA www.tcca.info @TCCAcritcomms
Release 18 planning schedule
June/July
RAN Rel 18 workshop
28.6 -02.07
• RAN content
discussions and
prioritisation
September
SA Rel 18 workshop
• New content from SA1
• SA2 list of topics
• SA6 separate list
December
• SA (2) prioritisation
workshop
• SA-RAN-CT co-
ordination
• Decisions on content

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Presentation on behalf of TCCA www.tcca.info @TCCAcritcomms
Rel 18 topics … developing
MC over 5G MBS and Prose
Normative for railways
Finalise multicast/broadcast
Air-to-Ground
Additional 5G slicing types
Bearer retry (SA6)
Group traffic recording (SA6)
IOPs for 5G?
Ue-to-Ue relay (inc multi-hop)
<5 MHz Channel Bandwidth SID
HPUE for < 1 GHz bands
NR Coverage enhancements
Mobile IAB
Vehicle Mounted Relay (VMR)
5G Timing Resiliency
Enhanced Sidelink Location
Ranging