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Saturday, 23 December 2017

3GPP Mission Critical Services – Detailed List of Rel-13, Rel-14 and Rel-15 Functionalities



Rel-13 MCPTT (completed 2016)
  • User authentication and service authorization
  • Configuration
  • Affiliation and de-affiliation
  • Group calls on-network and off-network (within one system or multiple systems, pre-arranged or chat model, late entry, broadcast group calls, emergency group calls, imminent peril group calls, emergency alerts)
  • Private calls on-network and off-network (automatic or manual commencement modes, emergency private calls)
  • MCPTT security
  • Encryption (media and control signalling)
  • Simultaneous sessions for call
  • Dynamic group management (group regrouping)
  • Floor control in on-network (within one system or across systems) and in off-network
  • Pre-established sessions
  • Resource management (unicast, multicast, modification, shared priority)
  • Multicast/Unicast bearer control, MBMS (Multimedia Broadcast/Multicast Service) bearers
  • Location configuration, reporting and triggering
  • Use of UE-to-network relays
Rel-14 MC Services (completed 2017)
MC Services Common Functionalities:
  • User authentication and service authorization
  • Service configuration
  • Affiliation and de-affiliation
  • Extended Location Features
  • (Dynamic) Group Management
  • Identity management
  • MC Security framework
  • Encryption (media and control signalling)
MCPTT Enhancements:
  • First-to-answer call setup (with and without floor control)
  • Floor control for audio cut-in enabled group
  • Updating the selected MC Service user profile for an MC Service
  • Ambient listening call
  • MCPTT private call-back request
  • Remote change of selected group
MCVideo, Common Functions plus:
  • Group Call (including emergency group calls, imminent peril group calls, emergency alerts)
  • Private Call (off-network)
  • Transmission Control
MCData, Common Functions plus:
  • Short Data Service (SDS)
  • File Distribution (FD) (on-network)
  • Transmission and Reception Control
  • Handling of Disposition Notifications
  • Communication Release
Rel-15 MC Services (in progress)

MC Services Common Functionalities Enhancements:
  • Enhanced MCPTT group call setup procedure with MBMS bearer
  • Enhanced Location management, information and triggers
  • Interconnection between 3GPP defined MC systems
  • Interworking with legacy systems

MCPTT Enhancements:
  • Remotely initiated MCPTT call
  • Enhanced handling of MCPTT Emergency Alerts
  • Enhanced Broadcast group call
  • Updating pre-selected MC Service user profile
  • Temporary group call - user regroup
  • Functional alias identity for user and equipment
  • Multiple simultaneous users
MCVideo Additions:
  • Video push
  • Video pull
  • Private call (on-network)
  • Broadcast Group Call
  • Ambient Viewing Call
  • Capability information sharing
  • Simultaneous Sessions
  • Use of MBMS transmission
  • Emergency and imminent peril private communications
  • Primary and Partner MC system interactions for MCVideo communications
  • Remote video parameters control capabilities

MCData Additions:
  • MCData specific Location
  • Enhanced Status
  • Accessing list of deferred communications
  • Usage of MBMS
  • Emergency Alert
  • Data streaming
  • File Distribution (FD) (off-network)
  • IP connectivity
MCPTT Conformance Tests (so far only for Rel-13 MCPTT)

Timeline for MC Services and 3GPP Releases

Release 13
  • Mission Critical Push to Talk (MCPTT) completed in March 2016
Release 14
  • MCPTT Improvements completion 09/2017
  • MCData completion 09/2017
  • MCVideo completion 09/2017
Release 15 and beyond
  • MCPTT Improvements completion 06/2018
  • MCData completion 06/2018
  • MCVideo completion 06/2018
  • Railways (FRMCS) study ongoing in SA6,normative work completion ~06/2018
  • Interconnection between systems study completed,normative work completion ~06/2018
  • Interworking with legacy systems study completed,normative work completion ~06/2018
  • Maritime communications study ongoing in SA1
  • Railways (FRMCS2) study and normative work ongoing in SA1
  • MBMS APIs for MC Services study ongoing in SA6 

Further Reading:

3GPP Mission Critical Specifications (selected):
Stage 1 – Requirements
  • TS 22.280 - MCS Common Requirements
  • TS 22.179 - MCPTT over LTE requirements
  • TS 22.281 - MCVideo over LTE requirements
  • TS 22.282 - MCData over LTE requirements
  • TS 22.289 – Mobile Communication Systems for Railways
  • TR 22.819 - Study on Maritime Communication Services over 3GPP system

Stage 2 – Functional Architecture and Procedures
  • TS 23.280 – MC Common Architecture
  • TS 23.379 – MCPTT Architecture and Flows
  • TS 23.281 – MCVideo Architecture and Flows
  • TS 23.282 – MCData Architecture and Flows
  • TS 33.180 – MC Services Security aspects
  • TS 23.283 – MC Interworking between LTE-based systems and non-LTE-based systems
  • TR 23.790 - Study on application architecture for the Future Railway Mobile Communication System (FRMCS)

Stage 3 – Protocols
  • TS 24.379 – MCPTT Call Control
  • TS 24.380 – MCPTT Media Plane
  • TS 24.481 – MCS Group Management
  • TS 24.482 – MCS Identity Management
  • TS 24.483 – MCS Management Object (MO)
  • TS 24.484 – MCS Configuration Management
  • TS 24.281 – MCVideo signalling protocol
  • TS 24.581 – MCVideo media plane control
  • TS 24.282 – MCData signalling protocol
  • TS 24.582 – MCData media plane control
  • TR 24.980 - Minimum requirements for support of MCPTT over the Gm
Conformance Testing (so far only for Rel-13 MCPTT)
  • TS 36.579-1 Mission Critical Push To Talk (MCPTT) over LTE; Part 1: Common test environment
  • TS 36.579-2 Mission Critical Push To Talk (MCPTT) over LTE; Part 2: User Equipment (UE) Protocol conformance specification
  • TS 36.579-3 Mission Critical Push To Talk (MCPTT) over LTE; Part 3: MCPTT Server Application conformance specification
  • TS 36.579-4 Mission Critical Push To Talk (MCPTT) over LTE; Part 4: Test Applicability and Implementation Conformance Statement (ICS) proforma specification
  • TS 36.579-5 Mission Critical Push To Talk (MCPTT) over LTE; Part 5: Abstract test suite (ATS)

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