1. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #1 [OMA-Template-WIDpresentation-20130101-I] Submitted To:TP, Critical Communications Workshop Date:15 Aug 2014 Availability: Public OMA Confidential Contact:Jerry Shih and Bryan Sullivan, AT&T Source:AT&T OMA-TP-2014-0177 Comparison of MCPTT Requirements and PCPS 1.0 X USE OF THIS DOCUMENT BY NON-OMA MEMBERS IS SUBJECT TO ALL OF THE TERMS AND CONDITIONS OF THE USE AGREEMENT (located at http://www.openmobilealliance.org/UseAgreement.html) AND IF YOU HAVE NOT AGREED TO THE TERMS OF THE USE AGREEMENT, YOU DO NOT HAVE THE RIGHT TO USE, COPY OR DISTRIBUTE THIS DOCUMENT.http://www.openmobilealliance.org/UseAgreement.html THIS DOCUMENT IS PROVIDED ON AN "AS IS" "AS AVAILABLE" AND "WITH ALL FAULTS" BASIS. Intellectual Property Rights Members and their Affiliates (collectively, "Members") agree to use their reasonable endeavours to inform timely the Open Mobile Alliance of Essential IPR as they become aware that the Essential IPR is related to the prepared or published Specification. This obligation does not imply an obligation on Members to conduct IPR searches. This duty is contained in the Open Mobile Alliance application form to which each Member's attention is drawn. Members shall submit to the General Manager of Operations of OMA the IPR Statement and the IPR Licensing Declaration. These forms are available from OMA or online at the OMA website at www.openmobilealliance.org.

2. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #2 [OMA-Template-WIDpresentation-20130101-I] Purpose of this Presentation Offer an initial analysis of the overlap & gaps between PCPS 1.0 and MCPTT requirements (latest draft)PCPS 1.0latest draft Help focus the next level of detailed analysis Help focus 3GPP work on additional requirements detail as helpful Optimize future efforts to close the gaps in PCPS, wherever done

3. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #3 [OMA-Template-WIDpresentation-20130101-I] Summary Table MCPTT Requirement MCPTT RD sectionPCPS RD sectionPCPS FeaturePCPS Gap Group Call 6.2 General Group Call 6.3 Commencement Modes for MCPTT Calls 6.8 Dynamic Group Management 6.1.2 One-to-Many Communication Feature 6.1.4 Session Setup Procedures 6.1.6 Management 6.1.9.6 Automatic Notification of Limited Participating Information 6.1.10 Enhanced PoC Session Control 6.1.11.6 Moderated PoC Groups 6.1.18 Dispatcher Functions 6.1.21 Operational Requirements 6.1.23 Multiple Group Operation, Broadcast, Late Call Entry 6.1.24 PoC Sessions with Multiple PoC Groups 6.1.33 Separate 1-to-1 PoC Session while having a PoC session Creation of the group By PoC subscriber/host/administrator; a PoC User may belong to multiple PoC groups 1-to-1, 1-to-many, 1-to-many-to-1, moderated (dispatcher) Pre-arranged, ad-hoc, and chat PoC group Max number of group can be created per subscriber If a user tries to re-join a previous ad-hoc group (already terminated), a list of the users on that group session will be provided for “restart” Assign QoE to each group, primary and secondary groups Ad-hoc group to include other groups and users Group advertisement Group Operation Invitation to join, leave and rejoin Max number to participants Talker ID provided (MSISDN, SIPURI) Early indication to speak before anyone accept, as soon as one accepted, Conformation (accept, reject) from recipient on INVITE PoC Admin or user with the rights can expel a member during a PoC group session Crisis handling request (should be assigned with high enough priority in process) Interworking with other P2T services Dispatcher functions PoC Group session search and join Advertisement of group information (such as group ID, administrator of the group etc.) Monitor multiple PoC group sessions One-to-one and group sessions co-exist Support roaming Two-level auth (UE, user) Invite to join vs affiliation Group hierarchy Regrouping with hierarchy Notification of regrouping Monitoring In progress call cancellation

4. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #4 [OMA-Template-WIDpresentation-20130101-I] Summary Table MCPTT Requirement MCPTT RD sectionPCPS RD sectionPCPS FeaturePCPS Gap Floor Control 6.1.2 Floor Control 6.4 Queuing 6.1.5 Floor Control 6.1.11 Media Burst Control Request Rights to Speak granted, denied Floor availability Finish speaking, about to speak, forced to release, Transmit Max time (duration) to transmit with warning when reached Media Burst Control Independent for media type Floor Queuing Indication of request has been queued Know queuing position More than one level of priority support Cancel request Private call in group call? Priority hierarchy Overriding and overridden transmissions

5. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #5 [OMA-Template-WIDpresentation-20130101-I] Summary Table MCPTT Requirement MCPTT RD sectionPCPS RD sectionPCPS FeaturePCPS Gap Group Membership 6.2.5/6 Membership/affiliation list 6.1 High Level Requirements 6.1.18 Dispatcher Functions 6.1.21.1 General Operational Requirements Created by PoC Subscriber PoC Service Provider creates on behalf of PoC Subscriber Any selected PoC User PoC User can be in more than one group XDM UE and user membership Affiliation Revoke of affiliation Private Call 5.5 Private Call6.1.1 1-to-1 6.1.10.1 Full Duplex Call Follow on Proceed one-to-one half duplex session Follow on full duplex voice call Is private call two-way full duplex? Authorization for private call Talker ID 5.7 Talker ID 6.2.4 Identification and location information 6.2.6 Membership/affiliation list 6.1.7.2 Multiple PoC Clients with same PoC Address 6.1.9.2 Invited Party Identification Information 6.1.21.2 Identity MSISDN, SIP URI and display name Multi-device one PoC address Available during a group session Hidden PoC address Use for incoming barring Personality Alias ID vs display name

6. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #6 [OMA-Template-WIDpresentation-20130101-I] Summary Table MCPTT Requirement MCPTT RD section PCPS RD sectionPCPS FeaturePCPS Gap Security 6.19 Security6.1.36 Security Mutual authentication Secure transport on signaling and speech PoC interaction log Signaling integrity No details on cryptographic operations suspending or disabling service access Priority 6.1.3 Override 6.15 Priority 6.1.14 Quality of Experience 6.1.23 Multiple Group Operation 4 levels of QoE profiles Specific for Government Official Use profile with multiple level of priorities Primary and secondary Pre-emption 3GPP TR 22.950 support Map to EPS Both overriding and overridden transmission By call type Change priority while call in progress Emergency Call Imminent Peril Emergency Alert Roaming 6.22.2 Application Layer roaming and Interworking 6.1.21.7 Service Mobility 6.1.37.2 Roaming Charging 6.2 Overall System Initiate or respond to PoC services Possible limiting some PoC capabilities [?] Performance may need local breakout Affiliation with visiting group?

7. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #7 [OMA-Template-WIDpresentation-20130101-I] Summary Table MCPTT Requirement MCPTT RD sectionPCPS RD sectionPCPS FeaturePCPS Gap Interworking 6.23 Interworking with non LTE MCPTT systems 6.1.15 PCPS Interworking Service External P2T networks No interworking with MCPTT Performance 6.14 Audio MCPTT Call Performance 6.1.13 Performance RtS response time StS time response End-to-end channel delay Voice quality Turn around time With 70% load Late call entry performance Location 6.18 Location 7.5 Location Not covered OMA LOC Enabler Audio / Voice Quality 6.14.3 Audio/Voice Quality 6.1.13 Performance General Objectives MOS >= 3 under nominal network conditions Interworking with non-MCPTT Noise reduction Off Network 7 Off Network UseNot covered Not Covered Broadcast/M ulticast 5.2 Broadcast Group Call 6.6 Broadcast Group 6.1.12 Multicast 6.1.28 Enterprise/Corporate Environment 6.1.36.1 Multicast/Broadcast Security eMBMS over LTE Geographic area support Group hierarchy

8. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #8 [OMA-Template-WIDpresentation-20130101-I] Conclusions PCPS supports most of the MCPTT requirements though enhancements are needed PCPS QoE needs further development to support MCPTT priority requirements using the Government Official Use profile PCPS eMBMS needs to evolve to support MCPTT requirements Major features missing from PCPS are: authorization to both UE and Application (user); difference in actors group hierarchy and group affiliation personality management location (could be supported by OMA LOC enabler) off Network (ProSe Relay) support late call entry performance ability to forward support of new security evolution interworking with non-LTE MCPTT systems (P25, TIA-603 etc.) Further analysis is needed to identify in detail how PCPS can be used to support MCPTT

9. © 2014 Open Mobile Alliance Ltd. All Rights Reserved. Used with the permission of the Open Mobile Alliance Ltd. under the terms as stated in this document. OMA-TP-2014-0177 Slide #9 [OMA-Template-WIDpresentation-20130101-I] Analysis Sources PCPS 1.0 RD http://member.openmobilealliance.org/ftp/Public_documents/COM/COM- PCPS/Permanent_documents/OMA-RD-PCPS-V1_0-20140722-D.zip http://member.openmobilealliance.org/ftp/Public_documents/COM/COM- PCPS/Permanent_documents/OMA-RD-PCPS-V1_0-20140722-D.zip MCPTT (TS 22.179) http://www.3gpp.org/ftp/Specs/archive/22_series/22.179/22179-060.zip