Critical Communications Workshop, 26-27/August 1 © 3GPP 2012 © 3GPP 2014 3GPP Status Balazs...

Critical Communications Workshop, 26-27/August1

© 3GPP 2012

© 3GPP 2014

3GPP Status

Balazs Bertenyi

Chairman of 3GPP TSG SA


© 3GPP 2012

© 3GPP 2014

Outline

3GPP structure and work organization

3GPP Releases and timelines

Critical Communications (CC) features and status

Status of CC work organization discussions


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© 3GPP 2014

TechnologiesRadio Technologies

2G radio: GSM, GPRS, EDGE3G radio: WCDMA, HSPA4G radio: LTE, LTE-Advanced

Mobile Core Network2G/3G: CS, GPRS3G/4G: Evolved Packet Core (EPC)IP Multimedia Subsystem (IMS)Security AssurancePolicy ControlCharging and O&M

Service related aspectsM2MPublic Safety

04/19/23

3GPP – facts and numbersOrganization

Meeting Delegates by Region

Numbers

50.000 delegate days per year40.000 documents per year1.200 specs per ReleaseNew Release every ~18 months

Consensus based decision making


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3GPP organizationOrganization


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3GPP Releases and CC features2013 20152014 20172016

Release 12

Release 13

Release 14

2020 “Ready” System

Rel 14Rel 14Rel 13Rel 13Rel 12Rel 12

Group Communcations (GCSE)Group Communcations (GCSE)

Isolated E-UTRAN Operationfor Public Safety (IOPS)


Mission Critical Push to Talk (MCPTT)Mission Critical Push to Talk (MCPTT)

Proximity Services (ProSe)Proximity Services (ProSe)

Device-to-device communications (D2D)

Device-to-device communications (D2D)

Group Communcations (GCSE) contd…

Group Communcations (GCSE) contd…

Proximity Services (ProSe) contd…Proximity Services (ProSe) contd…

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

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

Possible further enhancements to Rel-13 features

Possible further enhancements to Rel-13 features


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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;


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Group Communications (GCSE)Basic GCSE support was specified in Rel-12GCSE 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.


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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


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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


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Requirements definition work complete for Release 13 Resilience to loss/lack of backhaul for Critical CommunicationsSupports locally routed communication in E-UTRAN

• for “nomadic” eNodeBs operating without backhaul connectivity

• for “regular” eNodeBs experiencing temporary loss of backhaul connectivity

Network

Cell Site(s)


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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

Critical Communications Workshop, 26-27/August 1 © 3GPP 2012 © 3GPP 2014 3GPP Status Balazs...

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