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TECHNICAL SPECIFICATION
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
enhanced Multi Level Precedence and
Pre-emption service (eMLPP);
Stage 1
(3GPP TS 22.067 version 15.0.0 Release 15)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
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3GPP TS 22.067 version 15.0.0 Release 15 1 ETSI TS 122 067 V15.0.0 (2018-07)
Reference
RTS/TSGS-0122067vf00
Keywords
GSM,UMTS
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3GPP TS 22.067 version 15.0.0 Release 15 2 ETSI TS 122 067 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
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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
.
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 22.067 version 15.0.0 Release 15 3 ETSI TS 122 067 V15.0.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 4
1 Scope . 5
2 References . 5
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 6
4 Description . 6
4.1 Applicability to telecommunication services. 9
5 Normal operation with successful outcome . 9
5.1 Provision . 9
5.2 Withdrawal . 9
5.3 Registration . 9
5.4 Erasure . 9
5.5 Network related service configuration . 9
5.6 Activation . 9
5.7 Deactivation . 9
5.8 Invocation . 9
5.9 Normal operation . 10
5.10 Interrogation . 10
5.11 Charging requirements . 10
6 Exceptional procedures or unsuccessful outcome . 10
7 Alternate procedures. 10
8 Interaction with other supplementary services . 10
8.1 Calling Line Identification Presentation (CLIP). 10
8.2 Calling Line Identification Restriction (CLIR) . 10
8.3 Connected Line Identification Presentation (COLP) . 11
8.4 Connected Line Identification Restriction (COLR) . 11
8.5 Call Forwarding Unconditional (CFU). 11
8.6 Call Forwarding on mobile subscriber busy (CFB) . 11
8.7 Call Forwarding on No Reply (CFNRy) . 11
8.8 Call Forwarding on mobile subscriber Not Reachable (CFNRc) . 11
8.9 Call Waiting (CW) . 11
8.10 Call Hold . 11
8.11 Multi-party Service (MPTY) . 11
8.12 Closed User Group (CUG) . 11
8.13 Advice of Charge (AoC) . 11
8.14 Barring of Outgoing Calls (BAOC) . 12
8.15 Barring of Outgoing International Calls (BOIC) . 12
8.16 Barring of Outgoing International Calls except those to the Home PLMN country (BOIC-exHC) . 12
8.17 Barring of All Incoming Calls (BAIC) . 12
8.18 Barring of Incoming Calls when Roaming outside the home PLMN country (BIC-Roam). 12
8.19 Call Transfer (ECT). 12
9 Interworking considerations . 12
Annex A (informative) : Change history . 13
History . 14
ETSI
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3GPP TS 22.067 version 15.0.0 Release 15 4 ETSI TS 122 067 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.
ETSI
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3GPP TS 22.067 version 15.0.0 Release 15 5 ETSI TS 122 067 V15.0.0 (2018-07)
1 Scope
The present document specifies the stage 1 description of the enhanced Multi-Level Precedence and Pre-emption
Service (eMLPP). This service has two parts: precedence and pre-emption. Precedence involves assigning a priority
level to a call in combination with fast call set-up. Pre-emption involves the seizing of resources, which are in use by a
call of a lower precedence, by a higher level precedence call in the absence of idle resources. Pre-emption can also
involve the disconnection of an on-going call of lower precedence to accept an incoming call of higher precedence.
The eMLPP service is provided as a network operator's option to a domain of a network. The domain can be the whole
network or a subset of the network. The eMLPP service applies to all network resources in the domain that is in
common use. The eMLPP service is applicable to all mobile stations in the domain with all or some mobile stations
having a respective subscription assigning precedence according to the eMLPP service.
eMLPP is a supplementary service and shall be provided to a subscriber for all basic services subscribed to and for
which eMLPP applies.
The service is described from the service subscriber's and user's point of view, in particular:
- the procedure for normal operation with successful outcome;
- the action to be taken in exceptional circumstances;
- the interaction with other services and features.
The present document does not deal with the Man-Machine Interface (MMI) requirements, but makes reference to the
appropriate specifications.
The present document is applicable to teleservices 1x and 6x and to all bearer services used in a mobile network if
eMLPP is provided. Any interaction with other services and/or networks not dealt with in clauses 8 or 9 are outside the
scope of the present document.
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 TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 22.004: "General on supplementary services".
[3] 3GPP TS 22.024: "Description of Charge Advice Information (CAI)".
[5] 3GPP TS 42.068: "Voice Group Call Service (VGCS) - Stage 1".
[6] 3GPP TS 42.069: "Voice Broadcast Service (VBS) - Stage 1".
[7] 3GPP TS 43.005: "Technical performance objectives".
[8] VOID
[9] VOID
[10] ITU-T Recommendation I.255.3: "ISDN Multi-Level Precedence and Pre-emption (MLPP)
stage 1".
ETSI
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3GPP TS 22.067 version 15.0.0 Release 15 6 ETSI TS 122 067 V15.0.0 (2018-07)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following definitions apply:
called-party pre-emption: Termination of a call to a particular user when a higher priority call is directed towards that
specific user. Called party pre-emption is decided by the User Equipment without interaction of the user.
calling subscriber: Service subscriber which invokes the eMLPP service.
network operator: Entity which provides the network operating elements and resources for the execution of the
enhanced Multi-Level Precedence and Pre-emption service (eMLPP).
precedence: Precedence is the priority associated with a call.
service provider: Entity which offers the eMLPP service for subscription. The network operator may be the service
provider.
service subscriber: Mobile subscriber which subscribes to the eMLPP service. In principle, if a network provides
eMLPP service, all users are able to subscribe to this service.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply, in addition to those listed in GSM 01.04
and 3GPP TR 21.905 [1]:
eMLPP enhanced Multi-Level Precedence and Pre-emption
4 Description
a) The enhanced Multi-Level Precedence and Pre-emption service (eMLPP) provides different levels of precedence
for call set-up and for call continuity in case of handover.
eMLPP shall be applicable also in case of roaming if supported by the related networks.
The maximum precedence level of a subscriber is set at the subscription time by the service provider, based on
the subscriber's need. The subscriber may select a precedence level up to and including the maximum
precedence level subscribed to, on a per call basis.
There are at maximum 7 priority levels. The highest level (A) is reserved for network internal use, e.g. for
emergency calls or the network related service configurations for specific voice broadcast or voice group call
services. The second highest level (B) may be used for network internal use or, optionally, depending on
regional requirements, for subscription. These two levels (A and B) may only be used locally, i.e. in the domain
of one MSC. The other five priority levels are offered for subscription and may be applied globally, e.g. on inter
switch trunks, if supported by all related network elements, and also for interworking with ISDN networks
providing the MLPP service.
The seven priority levels are defined as follows:
A (highest, for network internal use).
B (for network internal use
...