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3GPP Status. Balazs Bertenyi Chairman of 3GPP TSG SA. Outline. 3GPP structure and work organization 3GPP Releases and timelines Critical Communications (CC) features and status Status of CC work organization discussions. 3GPP – facts and numbers. Technologies Radio Technologies

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3gpp status

3GPP Status

Balazs Bertenyi

Chairman of 3GPP TSG SA

  • 3GPP structure and work organization
  • 3GPP Releases and timelines
  • Critical Communications (CC) features and status
  • Status of CC work organization discussions
3gpp facts and numbers
3GPP – facts and numbers


Radio Technologies

2G radio: GSM, GPRS, EDGE

3G radio: WCDMA, HSPA

4G radio: LTE, LTE-Advanced

Mobile Core Network


3G/4G: Evolved Packet Core (EPC)

IP Multimedia Subsystem (IMS)

Security Assurance

Policy Control

Charging and O&M

Service related aspects


Public Safety


50.000 delegate days per year

40.000 documents per year

1.200 specs per Release

New Release every ~18 months


Meeting Delegates by Region

Consensus based decision making

3gpp organization
3GPP organization



3GPP Releases and CC features






2020 “Ready” System

Release 12

Release 13

Release 14

Rel 12

Rel 13

Rel 14

Device-to-device communications (D2D)

Device-to-device communications (D2D) contd..

Proximity Services (ProSe)

Proximity Services (ProSe) contd…

Possible further enhancements to Rel-13 features

Group Communcations (GCSE)

Group Communcations (GCSE) contd…

Isolated E-UTRAN Operationfor Public Safety (IOPS)

Mission Critical Push to Talk (MCPTT)

proximity services and d2d
Proximity Services and D2D
  • Basic discovery and communication functionality added to Release 12
  • Release 13 will add the following pieces of functionality:
    • Restricted ProSe Direct Discovery for non-Public Safety use;
    • ProSe Direct Discovery for Public Safety use;
    • Support for model B ProSe Direct Discovery for all use cases (i.e. open and restricted);
    • ProSe UE-Network relays for Public Safety use;
    • ProSe UE-UE relays for Public Safety use;
    • ProSe Direct Communication one-to-one for Public Safety use;
group communications gcse
Group Communications (GCSE)
  • Basic GCSE support was specified in Rel-12
  • GCSE provides generic building blocks for resource efficient downstream communication to a group of UEs for the design of application layer functionality
  • Release 13 will add the following pieces of functionality:
    • Group Communication between GCSE Group members via the network
    • Group Communication between GCSE Group members via the network and a ProSe UE-to-Network Relay
    • Relationship between a GCSE Group and members using ProSe Group Communication.
      • Notably: interaction between group communication and ProSe UE-UE or UE-Network relays.
    • Support for eMBMS single cell broadcast areas, for networks where this deployent scenario is needed.
mission critical push to talk mcptt
Mission Critical Push-to-Talk (MCPTT)
  • Requirements definition has been ongoing in Release 13, architecture work just started
  • Highlights
    • Provides arbitrated method by which two or more users may engage in communication
    • Designed to support mission critical usage, but can be deployed in non-mission critical scenarios
    • Emulates functions provided by PMR/LMR systems
    • Mainly for group call support, but private one-to-one calls supported too
    • Works in both on-network and off-network scenarios
    • Not all functions available when device operates off-network
mcptt continued
MCPTT continued
  • Attributes
    • Types of calls:
      • “Regular” group call
      • Broadcast group call, e.g. user broadcast: no response expected by initiating user
      • Group call based on priorities, e.g. emergency group call: high priority group call that could pre-empt other in-progress calls
      • Private calls: one-to-one calls with floor control
    • Membership:
      • Users must be a group member in order to receive and transmit to the group
isolated e utran operation for public safety iops
Isolated E-UTRAN Operationfor Public Safety (IOPS)
  • Requirements definition work complete for Release 13
  • Resilience to loss/lack of backhaul for Critical Communications
  • Supports locally routed communication in E-UTRAN
    • for “nomadic” eNodeBs operating without backhaul connectivity
    • for “regular” eNodeBs experiencing temporary loss of backhaul connectivity


Cell Site(s)

status of critical communications work organization discussions in 3gpp
Status of Critical Communications work organization discussions in 3GPP
  • TSG#64 meeting in June looked at proposals for organizing MCPTT work
    • Undertaking all MCPTT work in 3GPP
    • Distributing work across multiple SDOs (ETSI, OMA, 3GPP)
  • Conclusion was to first look at the high level architecture, and look at possible work distribution along main architecture layers/components
    • High level architecture was not completed by TSG#64 yet
  • TSG#65 will re-discuss and will aim at concluding the issue
    • Outcome of this workshop will be an important input to these discussions
thank you
Thank you !