ETSI TS 122 153 V15.0.0 (2018-07)

Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Multimedia priority service (3GPP TS 22.153 version 15.0.0 Release 15)

RTS/TSGS-0122153vf00

General Information

• Status: Published
• Publication Date: 12-Jul-2018
• Technical Committee: 3GPP SA 1 - Services
• Current Stage: 12 - Completion
• Completion Date: 13-Jul-2018

Standards Content (Sample)

ETSI TS 122 153 V15.0.0 (2018-07)






TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
Multimedia priority service
(3GPP TS 22.153 version 15.0.0 Release 15)

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3GPP TS 22.153 version 15.0.0 Release 15 1 ETSI TS 122 153 V15.0.0 (2018-07)



Reference
RTS/TSGS-0122153vf00
Keywords
GSM,LTE,UMTS
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3GPP TS 22.153 version 15.0.0 Release 15 2 ETSI TS 122 153 V15.0.0 (2018-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
http://webapp.etsi.org/key/queryform.asp.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI

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3GPP TS 22.153 version 15.0.0 Release 15 3 ETSI TS 122 153 V15.0.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 4
Introduction . 4
1 Scope . 5
2 References . 5
3 Definitions and abbreviations . 5
3.1 Definitions . 5
3.2 Abbreviations . 5
4 General description. 6
5 High level requirements . 7
5.1 General . 7
5.2 Priority session treatment in originating network . 7
5.3 Priority session progression . 7
5.4 Priority session treatment in terminating network . 7
5.4a Priority Data Bearer Service . 8
5.5 Priority levels . 8
5.6 Invocation on demand . 8
5.7 Multimedia priority service code/identifier . 8
5.8 Roaming . 8
5.9 Handover . 9
5.10 Interworking with CS domain . 9
5.10.1 Mobile origination in the CS domain -> MPS mobile termination . 9
5.10.2 MPS mobile origination -> mobile termination to the CS domain . 9
5.10.3 CS Fallback from LTE . 9
5.11 Network Management Functions . 9
5.12 Policy Control . 9
5.13 Priority before service invocation. 9
5.13.1 Overview of priority before service invocation . 9
5.13.2 Requirement for priority before service invocation . 10
5.14 Recovery/Restoration . 10
5.15 Quality of Service (QoS) . 10
6 MMI aspects . 10
7 Security and privacy . 10
7.1 General . 10
7.2 Access Control . 10
7.3 Integrity . 11
7.4 Confidentiality/Privacy . 11
7.5 Use of Encryption . 11
8 Charging aspects . 11
Annex A (informative): Change history . 12
History . 14

ETSI

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3GPP TS 22.153 version 15.0.0 Release 15 4 ETSI TS 122 153 V15.0.0 (2018-07)
Foreword
rd
This Technical Specification has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
Introduction
The response to emergency situations (e.g., floods, hurricanes, earthquakes, terrorist attacks) depends on the
communication capabilities of public networks. In most cases, emergency responders use private radio systems to aid in
the logistics of providing critically needed restoration services. However, certain government and emergency
management officials and other authorised users have to rely on public network services when the communication
capability of the serving network may be impaired, for example due to congestion or partial network infrastructure
outages, perhaps due to a direct or indirect result of the emergency situation.
Multimedia Priority Service, supported by the 3GPP system set of services and features, is one element creating the
ability to deliver calls or complete sessions of a high priority nature from mobile to mobile networks, mobile to fixed
networks, and fixed to mobile networks.
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3GPP TS 22.153 version 15.0.0 Release 15 5 ETSI TS 122 153 V15.0.0 (2018-07)
1 Scope
The present document specifies the service requirements for Multimedia Priority Service (MPS).
The scope of this document is to specify those requirements of MPS necessary to provide an end-to-end service and to
interwork with external networks where needed. Service interactions with external networks are considered within the
scope of this document although these interactions may be specified in other standards.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TS 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TR 22.952: "Priority Service Guide".
[3] 3GPP TS 22.067: "enhanced Multi-Level Precedence and Pre-emption service (eMLPP); Stage 1".
[4] 3GPP TS 23.067: "enhanced Multi-Level Precedence and Pre-emption service (eMLPP); Stage 2".
[5] 3GPP TS 24.067: "enhanced Multi-Level Precedence and Pre-emption service (eMLPP); Stage 3".
[6] 3GPP TS 22.011: "Service accessibility".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 [1] and the following apply. A
term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 [1].
MPS session: A session for which priority treatment is applied for allocating and maintaining radio and network
resources.
MPS-subscribed UE: A UE having MPS subscription.
Priority Treatment: Refers to mechanisms and features that increase the success rate for MPS session invocation,
establishment and maintenance until release.
Service User: An individual authorized to use MPS and who has been granted a user priority level assignment by a
regional/national authority (i.e., an agency authorised to issue priority assignments), and has a subscription to a mobile
network operator that supports the MPS feature.
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905 [1].
MPS Multimedia Priority Service

ETSI

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4 General description
MPS provides priority treatment to increase the probability of an authorized Service User’s Voice, Video, and Data
communication session being successful. Some form of priority treatment is applied to the MPS invocation and session
establishment, and continues to be applied until the MPS session is released. The priority treatment may be applied
before the invocation if a greater probability of success in receiving, recognizing, and processing the invocation is
needed.
MPS allows qualified and authorized users to obtain priority access to the next available radio channel on a priority
basis before other PLMN users, during situations when PLMN congestion is blocking session establishment attempts. In
addition, MPS supports priority sessions on an "end-to-end" priority basis.
MPS is intended to be utilised for Voice, Video, and Data bearer services in the Packet-switched (PS) domain and the
IP Multimedia Subsystem (IMS). It also involves priority transitioning of MPS service (e.g., Voice) to the CS domain
when the network does not support the requested service in the PS domain. MPS Voice, Video and Data sessions are
based on providing priority treatment to the corresponding commercial services offered to the public.
MPS includes network functions that fall into the following broad categories:
Service Invocation: The process to recognize and identify a request for an MPS session. A MPS Service Provider
network recognizes an MPS invocation based on the presence of an MPS-unique identifier entered by the originating
Service User in the service request received by the network from the UE, or based on the subscription profile of the
originating UE, or as a regional/operator option the subscription profile of the terminating UE.
NOTE: The option related to “subscription profile of the terminating UE” may not involve end-to-end priority
because this option is based on providing priority only in the terminating network based on the
terminating UE subscription profile.
Authorization: The process to verify that a Service User is authorized for MPS. This includes capabilities to verify
authorization to receive priority treatment in the radio access network and to access the MPS application service (MPS
Voice, Video, and Data).
End-to-End Priority Treatment: The process of providing priority treatment in all parts of the path, from one endpoint to
the other endpoint(s). End-to-end priority treatment includes priority treatment by all MPS capable networks involved
in the MPS session path, the origination network and the termination network as well as any transit networks in
between.
Invocation-to-Release Priority Treatment: The process of providing priority treatment to all phases of a session, from
invocation until release, including all steps in between.
The combination of End-to-End Priority Treatment and Invocation-to-Release Priority Treatment includes both pre- and
post-authorization treatment and includes the following aspects:
1) Priority processing of the Service User’s MPS invocation,
2) Admission control and allocation of network resources (including bearer resources) in origination, termination,
and transit networks, including handovers,
3) Transport of signaling and media packets,
4) Priority processing within EPS and CN, and
5) Processing of the Service Users release of an MPS service session.
Network Interconnection and Protocol Interworking: A Service User’s MPS invocation and session establishment will
involve transport and processing, and the end-to-end signaling and media path may traverse multiple MPS Service
Provider networks. These end-to-end cas
...