ETSI TR 121 914 V14.0.0 (2018-06)

TECHNICAL REPORT
Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS);
LTE;
5G;
Release description;
Release 14
(3GPP TR 21.914 version 14.0.0 Release 14)

3GPP TR 21.914 version 14.0.0 Release 14 1 ETSI TR 121 914 V14.0.0 (2018-06)

Reference
DTR/TSGS-0021914ve00
Keywords
5G,GSM,LTE,UMTS
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3GPP TR 21.914 version 14.0.0 Release 14 2 ETSI TR 121 914 V14.0.0 (2018-06)
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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Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
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Foreword
This Technical Report (TR) 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 "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.
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Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 6
Introduction . 6
1 Scope . 7
2 References . 7
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 7
4 Process to get further information . 8
4.1 Introduction . 8
4.2 Direct method . 8
4.3 Step by step method . 9
5 Rel-14 Executive Summary . 11
6 Mission Critical related items . 12
6.1 Mission Critical Improvements general aspects . 12
6.1.1 Re-organizing the MCPTT Stage 1 documents . 12
6.1.2 Re-organizing the MCPTT Stage 2 documents . 12
6.1.3 MCPTT documents structure . 13
6.2 Mission Critical Push to Talk over LTE Realignment . 14
6.3 Mission Critical Services Common Requirements . 15
6.4 Mission Critical Video over LTE . 15
6.5 Mission Critical Data over LTE . 17
6.6 Common functional architecture to support mission critical services . 18
6.7 Enhancements for Mission Critical Push To Talk . 19
7 Vehicle-to-Everything (V2X) related items . 21
7.1 LTE support for V2X services . 21
7.2 Support for V2V services based on LTE sidelink . 28
8 Cellular Internet of Things (CIoT) related items . 31
8.1 System improvements for MTC . 31
8.1.1 Extended architecture support for Cellular Internet of Things . 31
8.1.2 Enhancements of Dedicated Core Networks selection mechanism . 33
8.2 LTE enhancements for MTC . 33
8.2.1 Further enhanced MTC for LTE . 33
8.3 GPRS/GERAN enhancements for MTC . 35
8.3.1 New band support for Rel-14 Narrowband Internet of Things (NB-IOT) . 35
8.3.2 Enhancements of NB-IoT . 35
8.3.3 Non-IP for Cellular Internet of Things (CIoT) for 2G/3G-GPRS(EC-EGPRS) . 38
8.3.4 Radio Interface Enhancements for Extended Coverage GSM for support of Cellular Internet of

Things . 38
8.3.5 Dedicated Core Networks for GERAN . 40
9 Voice and Multimedia related items . 41
9.1 VoLTE related items . 41
9.1.1 S8 Home Routing Architecture for VoLTE . 41
9.1.2 Robust Call Setup for VoLTE subscriber in LTE . 42
9.1.3 Enhancements to Domain Selection between VoLTE and CDMA CS . 47
9.2 MBMS improvements . 47
9.2.1 MBMS Transport Protocol and APIs . 47
9.2.2 eMBMS enhancements for LTE . 49
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9.3 IMS related items . 49
9.3.1 Evolution to and Interworking with eCall in IMS . 49
9.3.2 Password-based service activation for IMS Multimedia Telephony service . 50
9.3.3 Media Handling Extensions of IMS-based Telepresence . 51
9.3.4 SIP Reason header extension . 51
9.3.5 Diameter Load Control Mechanism . 51
9.3.6 Diameter Base Protocol Specification Update . 52
9.3.7 Determination of Completeness of Charging Information in IMS. 53
9.3.8 SCC AS Restoration . 53
9.4 Other Voice and Multimedia related items . 54
9.4.1 Multimedia Priority Service Modifications . 54
9.4.2 Enhancements to Multi-stream Multiparty Conferencing Media Handling . 55
9.4.3 Enhancement for TV service . 56
9.4.4 Improved Streaming QoE Reporting in 3GPP (IQoE) . 57
9.4.4a Quality of Experience (QoE) Measurement Collection for streaming services in UTRAN . 57
9.4.5 Development of super-wideband and fullband P.835 . 58
10 Location and positioning related items . 59
10.1 Enhancements to User Location Reporting Support . 59
10.2 Enhancing Location Capabilities for Indoor and Outdoor Emergency Communications . 60
10.3 Further Indoor Positioning Enhancements for UTRA and LTE . 60
10.4 Improvements of awareness of user location change . 61
11 Radio improvements. 63
11.1 WLAN and unlicensed spectrum related items . 63
11.1.1 EIR check for WLAN access to EPC. 63
11.1.2 Support of EAP Re-authentication Protocol for WLAN Interworking . 63
11.1.3 Phase 2 of the Support of Emergency services over WLAN . 64
11.1.4 T-ADS supporting WLAN Access . 65
11.1.5 Enhanced LTE-WLAN Aggregation (LWA). 65
11.1.6 Enhanced LTE WLAN Radio Level Integration with IPsec Tunnel (eLWIP) . 66
11.2 GERAN and GPRS related items . 67
11.2.1 Positioning Enhancements for GERAN . 67
11.2.2 New GPRS algorithms for EASE . 68
11.2.3 Positioning Enhancements for GERAN . 69
11.2.4 Other GERAN items . 69
11.3 UMTS related items . 69
11.3.1 RRC optimization for UMTS. 69
11.3.2 Multi-Carrier Enhancements for UMTS . 69
11.3.3 DTX/DRX enhancements in CELL_FACH . 70
11.4 LTE related items . 71
11.4.1 LTE radio improvements . 71
11.4.1.1 Radiated performance requirements for the verification of multi-antenna reception of UEs in
LTE . 71
11.4.1.2 Enhancements on Full-Dimension (FD) MIMO for LTE . 72
11.4.1.3 Further mobility enhancements in LTE. 73
11.4.1.4 Uplink Capacity Enhancements for LTE . 74
11.4.1.5 L2 latency reduction techniques for LTE . 74
11.4.1.6 SRS (sounding reference signal) switching between LTE component carriers . 75
11.4.1.7 Downlink Multiuser Superposition Transmission for LTE . 77
11.4.1.8 Flexible eNB-ID and Cell-ID in E-UTRAN . 78
11.4.1.9 Four receiver (4Rx) antenna ports with Carrier Aggregation (CA) for LTE downlink (DL) . 79
11.4.1.10 Requirements for a new UE category with single receiver based on Category 1 for LTE . 79
11.4.1.11 Enhanced LAA for LTE . 80
11.4.1.12 Performance enhancements for high speed scenario in LTE . 81
11.4.1.13 LTE Measurement Gap Enhancement . 82
11.4.2 LTE bands related items . 83
11.4.2.1 Multi-Band Base Station testing with three or more bands . 83
12 System improvements . 84
12.1 Control and User Plane Separation of EPC nodes . 84
12.2 Paging Policy Enhancements and Procedure . 85
12.3 Shared Subscription Data Update . 86
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12.4 Service Domain Centralization . 86
12.5 Control of Applications when Third party Servers encounter difficulties . 87
12.6 PS Data Off Services . 87
12.7 Enhancement to Flexible Mobile Service Steering . 88
12.8 Sponsored data connectivity improvements . 89
12.9 Group based enhancements in the network capability exposure functions . 90
12.10 Improved operator control using new UE configuration parameters . 91
12.11 Charging and OAM stand alone improvements . 91
12.11.1 OAM14 Rel-14 Operations, Administration, Maintenance and Provisioning (OAM&P) . 91
12.11.2 Filtering of PM measurements and data volume. 93
12.11.3 OAM support for Licensed Shared Access (LSA) . 93
12.11.4 Rel-14 Chargi ng . 94
12.12 Extension of UE Delay test methods and requirements . 95
12.13 Security Assurance Specification for 3GPP network products . 95
13 Rel-14 Work Items not subject to summaries . 96
13.1 Introduction . 96
13.2 Rel-14 Work Items without summary . 96
13.2.1 Addition of band 25 and 26 to LTE MTC cat.0 . 96
13.2.2 Addition of bands 25 and 40 to LTE MTC cat.1 . 97
13.2.3 UE Conformance Test Aspects – IMS for Converged IP Communications . 97
13.2.4 Citizens Broadband Radio Service (CBRS) 3.5GHz band for LTE in the United States . 97
13.2.5 LTE UE Total Radiated Power (TRP) and Total Radiated Sensitivity (TRS) and UTRA Hand

Phantom related UE TRP and TRS Requirements . 97
13.2.6 AWS-3/4 Band for LTE . 97
13.2.7 LTE FDD in the Bands 1980-2010 MHz and 2170-2200MHz for Region 3 . 98
13.2.8 Addition of 1.4 and 3 MHz Channel Bandwidth to E-UTRA operating band 65 for CGC
(Complementary Ground Component) operations in Region 1 . 98
13.2.9 LTE 2.6 GHz FDD Supplemental DL band (2570-2620 MHz) and LTE Carrier Aggregation

(2DL/1UL) with Band 3 for region 1 . 98
13.2.10 LTE Band 41 UE power class 2 operation . 98
13.2.10 Introduction of new band support for 4Rx antenna ports for LTE . 98
13.2.11 LTE Carrier Aggregation . 99
13.2.12.1 Rel-14 LTE Carrier Aggregation . 99
13.2.12.2 Rel-14 LTE Advanced inter-band Carrier Aggregation . 99
13.2.12 Stage-3 SAE Protocol Development - Phase 5 . 100
13.2.13 AT Commands for CIoT . 100
13.2.14 Protocol enhancements for MCPTT over LTE . 101
13.2.15 IMS Signalling Activated Trace . 101
13.2.16 Lawful Interception Rel-14 . 101
13.2.17 User Controlled Spoofed Call Treatment . 101
13.2.18 IMS Stage-3 IETF Protocol Alignment . 101
Annex A: Change history . 102
History . 103

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Foreword
This Technical Report has been produced by the 3rd 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 present document provides a summary of the Release 14 Features and other significant Work Items for which a
summary has been agreed to be provided.
There is one clause per Feature. Each clauses begins with a table providing references that can be used to get further
information, as described in clause 4. This table is then followed by a summary of what the feature does and how it does
it.
The summaries are based inputs from the Rapporteur, provided as tdoc number to the plenary. The tdoc number where
the original version of the summary can be found is provided in the first sentence of each clause.
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1 Scope
The present document provides a summary of each Feature or, whenever needed, of each significant Work Item,
introduced in Release 14.
The information provided in the present document is limited to an overview of each feature, explaining, in about a page,
its purpose and the main lines of its behaviour.
The next step to retrieve more information on a given feature is to consult the 3GPP Ultimate web site, as explained in
Clause 4.
This document presents the "initial state" of the Features introduced in Release 14, i.e. as they are by the time of
publication of this document. It is however important to note that each Feature is subject to be later modified or
enhanced, over several years, by the means of Change Requests (CRs) associated to the Feature or to "TEI" (Technical
Enhancements and Improvements). It is therefore recommended to retrieve all the CRs which relate to the given
Feature, as explained in Clause 4, to further outline a feature at a given time.
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".
Note: Due to the specificity of the present document, consisting in a collection of independent summaries, the
references are given at the end of each clause rather than in this clause.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP 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 3GPP
TR 21.905 [1].
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP 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 3GPP TR 21.905 [1]. Abbreviations specific to a given clause are provided in the clause they appear.
Rel 3GPP Release
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4 Process to get further information
4.1 Introduction
Since the present document is limited to provide an overview of each Feature, this chapter explains how to get
additional information, in particular how to retrieve all the Specifications (TSs) and Reports (TRs) as well as all the
CRs which relate to a given Work Item.
The Unique Identifier (UID) is the key to get additional information on a given Work Item. It can be found in the table
located just below the clause's header. The table has the following format:
Table 4.1-1: table format
Unique Name Acronym Outline Responsible Work Item
Identifier Working Description
Level
(UID) Group
(1=Feature,
2=Building
Block,
3=Work
Task)
For readability reasons, the table headers are omitted in the continuation of the present document.
For instance, for the "Mission Critical Push to Talk over LTE Realignment", the table has to be understood as:
Table 4.1-2: Example of table at the introduction of each Feature
Unique  Name Acronym Outline Responsible Work Item
Identifier Level Working Description
(UID) Group
700029 Mission Critical Push to Talk over LTE MCImp-MCPTTR 2 S1 SP-150821
Realignment
Thus, the UID for this Work Item is 700029.
Two methods are now possible to retrieve more information on a given feature: the "Step by step method" and the
"Direct method". The "direct method" is faster but implies to know the hierarchical structure of the Work Items. The
"step by step method" is slower but is easier to use, in particular when the hierarchical structure is unknown.
For instance, for retrieving all the CRs that relate to "Enhancements for Mission Critical Push To Talk", the search has
to be done on UID 740022 but also potentially on its children Work Items (UID 720056, 740023 and 740024).
Table 4.1-3: Example of a hierarchical structure and its consequences on the search procedure
740022 Enhancements for Mission Critical Push To Talk MCImp-eMCPTT SP-160490
720056 Stage 2 of Enhancements for Mission Critical Push MCImp-eMCPTT S6 SP-160490
To Talk
740023 Stage 3 of Enhancements for Mission Critical Push MCImp-eMCPTT-CT CT CP-160824
To Talk
740024 CT1 aspects of Enhancements for Mission Critical MCImp-eMCPTT-CT C1 CP-160824
Push To Talk
These two methods are described in the following clauses.
4.2 Direct method
The links below lead to the pages containing respectively all the Specifications and all the Change Requests (CRs)
linked to a given Feature:
https://portal.3gpp.org/Specifications.aspx?q=1&WiUid=[UID]
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https://portal.3gpp.org/ChangeRequests.aspx?q=1&workitem=[UID]
where "[UID]" has to be preplaced by the UID value.
Using the example provided in the table 4.1-3, the specification linked to "Stage 2 of Enhancements for Mission Critical
Push To Talk" can be found in:
https://portal.3gpp.org/Specifications.aspx?q=1&WiUid=720056
And all the related Change Requests are listed in:
https://portal.3gpp.org/ChangeRequests.aspx?q=1&workitem=720056
4.3 Step by step method
This method is to be used when the hierarchical structure is not known or when the "direct method" above does not
show the expected results.
In this case, the 3GPP Ultimate web site has to be used:
https://portal.3gpp.org
As a preliminary step, it is essential that the "Customized Selection" is set to "All TSGs" (otherwise, a filter would be
applied).
Figure 4.3-1: Selecting "All TSGs" in "Customized Selection" as to remove any potential filter on the
Search
Then select the "Work Plan" tab (upper red arrow in the figure below).
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Figure 4.3-2: Using the 3GU Portal to retrieve more information on a given Feature
Then the search might be performed by either typing the Acronym (as shown by the left red arrow on the figure above,
using the example "MCPTT"), or by the name or UID (right box) then by clicking on the "Search" button. Watch the
"Granularity (Level)" field, which is a filter to return only the Items which level is specified here.
In the results, the icon depicting some binoculars has to be hit (lower right red arrow on the figure above).
This will lead to the page shown in the figure below:

Figure 4.3-3: Window resulting from a "Search"
On this window, the "Related" tab has to be clicked, as pointed by the red arrow in the figure above. This will lead to
the window depicted in the figure below.
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Figure 4.3-4: "Related" tab in a Work Item search, with links to all related Specifications and Change
Requests
The two links pointed by the red arrows in the figure above lead to the pages containing respectively all the
Specifications and all the Change Requests (CRs) linked to this Feature.
5 Rel-14 Executive Summary
Release 14 focuses on the following Features:
- Improvements of the Mission Critical (MC) aspects, in particular by introducing Video and Data MC services.
- Introducing Vehicle-to-Everything (V2X) communications, in particular Vehicle-to-Vehicle (V2V).
- Improvements of the Cellular Internet of Things (CIoT) aspects, with 2G, 3G and 4G support of Machine-Type
of Communications (MTC).
- Improvements of the radio interface, in particular by enhancing the aspects related to coordination with WLAN
and unlicensed spectrum.
- A set of uncorrelated improvements, e.g. on Voice over LTE (VoLTE), IMS, Location reporting.
The continuation of the present document provides an exhaustive view of all the items specified in Release 14 by 3GPP.

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6 Mission Critical related items
6.1 Mission Critical Improvements general aspects
700027 Mission Critical Improvements MCImp
This is an "umbrella" Feature, which is a mere grouping of all its constituent Building Blocks, described in the
following clauses.
For readability purposes, the two following clauses on Re-organizing the MCPTT Stage 1 and Stage 2 documents are
presented here although they were actually developed under the respective Work Items "Mission Critical Push to Talk
over LTE Realignment" (described in 6.2) and Common functional architecture to support mission critical services
(described in 6.6).
6.1.1 Re-organizing the MCPTT Stage 1 documents
In Release 13, there was a single Stage 1 Technical Specification related to MCPTT, i.e. TS 22.179 ("Mission Critical
Push to Talk (MCPTT) over LTE; Stage 1").
In Release 14, three new TSs were introduced to cover dedicated MCPTT topics: TS 22.281 for MCPTT Video
(MCVideo); TS 22.282 for MCPTT Data (MCData), and TS 22.280 ("Mission Critical Services Common
Requirements").
The text in TS 22.179 Rel-13 was "redistributed", and some new text was added, to 22.179 Rel-14 and to the newly
created 22.280, 22.281 and 22.282 as follows:
- requirements specific to MCPTT Video were moved to TS 22.281.
- requirements specific to MCPTT Data were moved to TS 22.282.
- requirements specific to MCPTT "basic service" (i.e. Voice) remained to the Rel-14 version of TS 22.179.
- requirements common to different mission critical services were moved to TS 22.280.
Each requirement that was moved out of 22.179 Rel-13 was voided in the Rel-14 version of TS 22.179 (also known as
"the realignment version"), with an informative annex created at the end TS 22.179 Rel-14 documenting the location of
the originating TS 22.179 requirement in the other TSs.
6.1.2 Re-organizing the MCPTT Stage 2 documents
As seen in clause above, in Release 14, the stage 1 MCPTT documentation is arranged to be: stage 1 requirements are
specified for MCVideo in TS 22.281, for MCData in TS 22.282, for MC common requirements in TS 22.280 and for
some enhancements to MCPTT in TS 22.179.
Similarly, for Stage 2, and as part of the work for the MCImp-MC_ARCH work item, the following structure of Stage 2
documentation was adopted:
1) The common functional architecture to support mission critical services including the common services for
identity management, configuration management, key management and group management are specified in
TS 23.280;
2) The MCPTT service architecture is based on the common functional architecture and is specified in TS 23.379;
3) The MCVideo service architecture is based on the common functional architecture and is specified in TS 23.281;
and
4) The MCData service architecture is based on the common functional architecture and is specified in TS 23.282.
It can be noted that, contrarily to Stage 1, where a same TS number (i.e. TS 22.179) was reused between Rel-13 and
Rel-14 to handle the basic -voice only- MCPTT service, the Stage 2 documentation took a different approach: the
MCPTT functional architecture and information flows are covered in TS 23.179 for Rel-13 and, from Release 14
onwards, a new Specification was created, namely TS 23.379.
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For MCPTT security aspects, a similar approach as for Stage 2 was decided: Release 13 is covered in TS 33.179 while,
in Release 14, a new specification is created in TS 33.180.
6.1.3 MCPTT documents structure
With this restructuring of documentation, the Release 14 TS and TR specific to Mission Critical Improvements are:
Studies:
TR 22.879 Feasibility Study on Mission Critical Video Services over LTE
TR 22.880 Feasibility Study on Mission Critical Data Communications
Stage 1:
TS 22.179 Mission Critical Push To Talk (MCPTT) over LTE; Stage 1
TS 22.280 Mission Critical Services Common Requirements (MCCoRe); Stage 1
TS 22.281 Mission Critical video services over LTE (MCVideo)
TS 22.282 Mission Critical data services over LTE (MCData)
Stage 2 (including information flows, procedures, and configuration):
TS 23.179 Functional architecture and information flows to support mission critical communication services; Stage 2
(Rel-13 only)
TS 23.379 Functional architecture and information flows to support Mission Critical Push To Talk (MCPTT); Stage 2
(from Rel-14 onward)
TS 23.280 Common functional architecture to support mission critical services; Stage 2
TS 23.281 Functional architecture and information flows to support Mission Critical Video (MCVideo); Stage 2
TS 23.282 Functional architecture and information flows to support Mission Critical Data (MCData); Stage 2
Stage 3:
TS 24.282 Mission Critical Data (MCData) signalling control; Protocol specification
TS 24.379 Mission Critical Push To Talk (MCPTT) call control; Protocol specification
TS 24.380 Mission Critical Push To Talk (MCPTT) media plane control; Protocol specification
TS 24.481 Mission Critical Services (MCS) group management; Protocol specification
TS 24.482 Mission Critical Services (MCS) identity management; Protocol specification
TS 24.483 Mission Critical Services (MCS) Management Object (MO)
TS 24.484 Mission Critical Services (MCS) configuration management; Protocol specification
TS 24.582 Mission Critical Data (MCData) media plane control; Protocol specification
Codec:
TS 26.179 Mission Critical Push To Talk (MCPTT); Codecs and media handling
TS 26.281 Mission Critical Video (MCVideo); Codecs and media handling

Security:
TS 33.179: Security of Mission Critical Push-To-Talk (Rel-13 only)
TS 33.180 Security of the mission critical service (from Rel-14 onward)
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3GPP TR 21.914 version 14.0.0 Release 14 14 ETSI TR 121 914 V14.0.0 (2018-06)
Others:
TS 23.303 Proximity-based services (ProSe); Stage 2 (ProSe is an enabler for the MCPTT service)
TS 23.468 Group Communication System Enablers for LTE (GCSE_LTE) (GCSE_LTE is also an enabler for the
MCPTT service, in particular GCSE for multicast communication)
TS 29.213 Policy and Charging Control signalling flows and Quality of Service (QoS) parameter mapping
TS 29.214: Policy and Charging Control over Rx reference point
TS 29.283: Diameter data management applications (includes the MCPTT service for data management related to MC
service user profile)
6.2 Mission Critical Push to Talk over LTE Realignment
Summary based on the input provided by the U.S. Department of Commerce/ FirstNet in SP-170406.
700029 Mission Critical Push to Talk over LTE MCImp-MCPTTR 2 S1 SP-150821
Realignment
This Work Item consists mostly in re-shuffling and re-organizing several sections related to Mission Critical Push to
Talk into different TRs and TSs.
Re-organizing
...