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TR 22.854 (SA1) ★
Feasibility Study on
Multimedia Priority Service (MPS) Phase 2

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced

V17.0.0 (Wzip) 2019/09 62 p.

Rapporteur: Mr. Singh, Ray

The present document studies data transport, video and messaging use cases and identifies potential requirements for Multimedia Priority Service (MPS). It identifies where updates are needed to TR 22.953 and TS 22.153 to account for current and anticipated MPS User needs for priority data, video and text messaging communication capabilities.

The present document provides use cases and the associated potential new stage 1 requirements beyond those documented in TR 22.953. Example use cases include:

MPS for Voice: MPS for conversational voice and voice teleconferencing invoked from a subscribed UE, and MPS for voice teleconferencing invoked from a voice server by the host,
MPS for Data Transport Service (DTS): MPS DTS communications invoked from a subscribed UE, a subscribed IoT device, and from an enterprise network,
MPS for Video: MPS for conversational video, streaming video, and video teleconferencing invoked from a subscribed UE and MPS for video teleconferencing invoked from a video server by the host, and

The present document also include security considerations.

NOTE: Both MPS users and Mission Critical users can use common mechanisms defined in MCData and MCVideo for group-based communication with priority. However, both MPS and Mission Critical users have some unique requirements to also use an operator's individual subscription-based commercial services (voice, video, data) with priority.

full Table of Contents for TR 22.854 Word version: 17.0.0

1 Scope Word-p. 8

3 Definitions and abbreviations Word-p. 9

3.1 Definitions

3.2 Abbreviations

4.1 Service descriptions from user perspective

4.1.1 MPS for voice

4.1.2 MPS for DTS

4.1.3 MPS for video Word-p. 10

5 MPS for voice use cases

5.1 MPS for MMTEL voice during international roaming

5.1.1 Description

5.1.2 Pre-conditions

5.1.3 Service flows Word-p. 11

5.1.4 Post-conditions

5.1.5 Potential impacts or interactions with existing services/features

5.1.6 Potential requirements

5.2 MPS for MMTEL voice or voice conference call termination to a UE Word-p. 12

5.2.1 Description

5.2.2 Pre-conditions Word-p. 13

5.2.3 Service flows

5.2.4 Post-conditions Word-p. 14

5.2.5 Potential impacts or interactions with existing services/features

5.2.6 Potential requirements

5.3 MPS for MMTEL voice invoked from a public UE

5.3.1 Description

5.3.2 Pre-conditions Word-p. 15

5.3.3 Service flows

5.3.4 Post-conditions

5.3.5 Potential impacts or interactions with existing services/features

5.3.6 Potential requirements Word-p. 16

5.4 MPS MMTEL voice conference call using a public UE

5.4.1 Description

5.4.2 Pre-conditions Word-p. 17

5.4.3 Service flows

5.4.4 Post-conditions

5.4.5 Potential impacts or interactions with existing services/features

5.4.6 Potential requirements

5.5 MMTEL voice conference host invocation of MPS for all participants Word-p. 18

5.5.1 Description

5.5.2 Pre-conditions

5.5.3 Service flows Word-p. 19

5.5.4 Post-conditions

5.5.5 Potential impacts

5.5.6 Potential new requirements needed to support the use case

6 MPS for DTS use cases Word-p. 20

6.1 Basic DTS invoked from an MPS subscribed UE

6.1.1 Description

6.1.2 Pre-conditions

6.1.3 Service flows

6.1.4 Post-conditions Word-p. 21

6.1.5 Potential impacts or interactions with existing services/features

6.1.6 Potential requirements

6.2 DTS invocation from a MPS subscribed UE for VPN access to an enterprise network Word-p. 22

6.2.1 Description

6.2.2 Pre-conditions

6.2.3 Service flows

6.2.4 Post-conditions Word-p. 23

6.2.5 Potential impacts or interactions with existing services/features

6.2.6 Potential requirements

6.3 MPS capable enterprise network activation of DTS for MPS subscribed UEs Word-p. 24

6.3.1 Description

6.3.2 Pre-conditions

6.3.3 Service flows

6.3.4 Post-conditions Word-p. 25

6.3.5 Potential impacts or interactions with existing services/features

6.3.6 Potential requirements

6.4 DTS invoked during international roaming

6.4.1 Description

6.4.2 Pre-conditions Word-p. 26

6.4.3 Service flows

6.4.4 Post-conditions Word-p. 27

6.4.5 Potential impacts or interactions with existing services/features

6.4.6 Potential requirements

6.5 DTS invoked from a public UE

6.5.1 Description

6.5.2 Pre-conditions Word-p. 28

6.5.3 Service flows

6.5.4 Post-conditions

6.5.5 Potential impacts or interactions with existing services/features

6.5.6 Potential requirements Word-p. 29

6.6 DTS invoked from an IoT device

6.6.1 Description

6.6.2 Pre-conditions

6.6.3 Service flows Word-p. 30

6.6.4 Post-conditions

6.6.5 Potential impacts or interactions with existing services/features

6.6.6 Potential requirements

6.7 MPS capable enterprise network activation of DTS for MPS subscribed IoT devices

6.7.1 Description

6.7.2 Pre-conditions Word-p. 31

6.7.3 Service flows

6.7.4 Post-conditions Word-p. 32

6.7.5 Potential impacts or interactions with existing services/features

6.7.6 Potential requirements

6.8 MPS for DTS QoS and media encryption modifications

6.8.1 Description

6.8.2 Pre-conditions Word-p. 33

6.8.3 Service flows

6.8.4 Post-conditions

6.8.5 Potential impacts or interactions with existing services/features

6.8.6 Potential requirements

7 MPS for video use cases Word-p. 34

7.1 MPS for MMTEL video call invoked from a MPS subscribed UE

7.1.1 Description

7.1.2 Pre-conditions

7.1.3 Service flows

7.1.4 Post-conditions Word-p. 35

7.1.5 Potential impacts or interactions with existing services/features

7.1.6 Potential requirements

7.2 MPS for MMTEL video invoked from a public UE Word-p. 36

7.2.1 Description

7.2.2 Pre-conditions

7.2.3 Service flows

7.2.4 Post-conditions Word-p. 37

7.2.5 Potential impacts or interactions with existing services/features

7.2.6 Potential requirements

7.3 MPS for MMTEL video call during international roaming

7.3.1 Description

7.3.2 Pre-conditions Word-p. 38

7.3.3 Service flows

7.3.4 Post-conditions Word-p. 39

7.3.5 Potential impacts or interactions with existing services/features

7.3.6 Potential requirements

7.4 MPS MMTel video conference call using a MPS subscribed UE Word-p. 40

7.4.1 Description

7.4.2 Pre-conditions

7.4.3 Service Flows

7.4.4 Post-conditions Word-p. 41

7.4.5 Potential impacts or interactions with existing services/features

7.4.6 Potential requirements

7.5 MPS MMTEL video conference call using a public UE Word-p. 42

7.5.1 Description

7.5.2 Pre-conditions

7.5.3 Service flows

7.5.4 Post-conditions Word-p. 43

7.5.5 Potential impacts or interactions with existing services/features

7.5.6 Potential requirements

7.6 MMTEL video conference host invocation of MPS for all participants Word-p. 44

7.6.1 Description

7.6.2 Pre-conditions

7.6.3 Service flows

7.6.4 Post-conditions Word-p. 45

7.6.5 Potential impacts or interactions with existing services/features

7.6.6 Potential requirements

7.7 MPS for MMTEL video conference during international roaming Word-p. 46

7.7.1 Description

7.7.2 Pre-conditions

7.7.3 Service Flows Word-p. 47

7.7.4 Post-conditions

7.7.5 Potential impacts or interactions with existing services/features

7.7.6 Potential requirements

7.8 MPS for MMTEL video or video conference termination to a UE Word-p. 48

7.8.1 Description

7.8.2 Pre-conditions Word-p. 49

7.8.3 Service flows Word-p. 50

7.8.4 Post-conditions

7.8.5 Potential impacts or interactions with existing services/features

7.8.6 Potential requirements

7.9 MPS for streaming video communications Word-p. 51

7.9.1 Description

7.9.2 Pre-conditions

7.9.3 Service flows

7.9.4 Post-conditions

7.9.5 Potential impacts or interactions with existing services/features

7.9.6 Potential requirements

8 Security considerations Word-p. 52

8.1 Cryptographic signing of MPS priority markings

8.1.1 Description

8.1.2 Pre-conditions Word-p. 53

8.1.3 Service flows

8.1.4 Post conditions Word-p. 54

8.1.5 Potential impacts or interactions with existing services/features

8.1.6 Potential requirements

9 Potential requirements

9.1 MPS for MMTEL voice consolidated requirements

9.1.1 Authentication and authorization

9.1.3 Invocation/revocation Word-p. 55

9.1.7 Signalling

9.1.8 General support of service Word-p. 56

9.2 MPS for DTS consolidated requirements

9.2.1 Authentication and authorization

9.2.3 Security and policy

9.2.5 Invocation and revocation

9.2.6 Media Word-p. 58

9.2.8 Signalling

9.2.9 General support of service

9.3 MPS for video consolidated requirements

9.3.1 Authentication and authorization

9.3.2 Security and policy Word-p. 59

9.3.3 Invocation and revocation

9.3.4 MMI Word-p. 60

9.3.6 Signalling

9.3.7 Inter-network

9.3.8 General support of service

9.4 Consolidated security considerations requirements Word-p. 61

9.4.1 Cryptographic signing of MPS priority markings

10 Conclusion and recommendations

A Change history Word-p. 62