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TECHNICAL SPECIFICATION
Universal Mobile Telecommunications System (UMTS);
LTE;
Multimedia Broadcast/Multicast Service (MBMS);
Architecture and functional description
(3GPP TS 23.246 version 15.0.0 Release 15)
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3GPP TS 23.246 version 15.0.0 Release 15 1 ETSI TS 123 246 V15.0.0 (2018-07)
Reference
RTS/TSGS-0223246vf00
Keywords
LTE,UMTS
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ETSI
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3GPP TS 23.246 version 15.0.0 Release 15 2 ETSI TS 123 246 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/).
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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
.
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 23.246 version 15.0.0 Release 15 3 ETSI TS 123 246 V15.0.0 (2018-07)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2 References . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 9
4 MBMS Architecture . 9
4.1 Overview . 9
4.2 Reference Architecture Model . 10
4.2.1 GPRS . 10
4.2.2 EPS . 10
4.3 MBMS Specific Reference points . 11
4.3.1 Gmb . 11
4.3.1a SGmb . 11
4.3.2 Mz . 11
4.3.3 Reference Points for Evolved Packet System . 12
4.4 MBMS Service Provision . 12
4.4.1 MULTICAST MODE . 12
4.4.1.1 Subscription . 14
4.4.1.2 Service announcement . 14
4.4.1.3 Joining . 15
4.4.1.4 Session Start . 15
4.4.1.5 MBMS notification . 15
4.4.1.6 Data transfer . 15
4.4.1.7 Session Stop . 15
4.4.1.8 Leaving . 15
4.4.2 Multicast Mode timeline . 15
4.4.2.1 Period between Service Announcement and Session Start . 15
4.4.2.2 Period between Service Announcement and Service Subscription . 15
4.4.2.3 Period between Service Announcement and Joining . 15
4.4.2.4 Period between Joining and Session Start . 16
4.4.2.5 Period between Session Start and First Data Arrival . 16
4.4.2.6 Period between Session Start and Session Stop . 16
4.4.2.7 Session Update . 16
4.4.3 BROADCAST MODE . 16
4.4.3.1 Service announcement . 18
4.4.3.1a UE local service activation . 18
4.4.3.2 Session Start . 18
4.4.3.3 MBMS notification . 18
4.4.3.4 Data transfer . 18
4.4.3.5 Session Stop . 19
4.4.3.6 Session Update . 19
4.4.4 Broadcast Mode timeline . 19
4.4.4.1 Period between Service Announcement and Session Start . 19
4.4.4.2 Period between Session Start and First Data Arrival . 19
4.4.4.3 Period between Session Start and Session Stop . 19
5 Functional Entities To Support MBMS . 19
5.0 General . 19
5.1 Broadcast-Multicast Service Centre (BM-SC) . 19
5.1.0 General . 19
5.1.1 Membership Function . 20
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3GPP TS 23.246 version 15.0.0 Release 15 4 ETSI TS 123 246 V15.0.0 (2018-07)
5.1.2 Session and Transmission Function . 20
5.1.3 Proxy and Transport Function . 21
5.1.4 Service Announcement Function . 21
5.1.4a MBMS Security Function . 22
5.1.5 MBMS Content Transfer for the same MBMS User Service for GPRS and EPS . 22
5.1.5.1 General . 22
5.1.5.2 Separate MBMS Bearer Services for the same MBMS User Service . 22
5.1.5.3 Same MBMS Bearer Service for the same MBMS User Service . 22
5.1.6 Location Dependent Content Transfer for the same MBMS User Service (Broadcast Mode only) . 23
5.1.7 MBMS User Service Consumption Reporting (Broadcast mode only) . 23
5.2 User Equipment . 23
5.3 UTRAN/GERAN . 24
5.4 SGSN . 24
5.5 GGSN . 25
5.6 MBMS Data Sources and Content Provider . 25
5.7 Other Functional Element . 25
5.7.1 Void . 25
5.7.2 CBC . 25
5.7.3 Void . 25
5.8 Void . 25
5.9 Functional Elements for the Evolved Packet System . 25
5.9.1 MBMS GW . 25
5.9.2 MBMS Control plane function . 26
5.9.3 E-UTRAN . 27
6 MBMS Attributes and Parameters . 27
6.1 MBMS UE Context . 27
6.2 MBMS Bearer Context . 28
6.3 Quality-of-Service . 31
6.3.1 Quality-of-Service for GPRS . 31
6.3.2 Quality-of-Service for EPS . 32
6.3.3 MBMS QoS distribution tree . 33
6.4 Temporary Mobile Group Identity . 34
6.5 IP Multicast distribution . 34
6.5.1 General . 34
6.5.2 IP Multicast distribution for GERAN Iu-mode and UTRAN for GPRS . 34
6.5.3 IP Multicast distribution for E-UTRAN and UTRAN for EPS . 35
7 Architectural Aspects of MBMS User Services . 35
7.1 Alternative User Service Support . 35
7.2 Avoid overload in SGSN, GGSN and BM-SC caused by Joining . 36
7.3 Access aspects of MBMS user services . 36
7.4 MBMS operation on Demand . 36
7.5 Enhanced TV services support over E-UTRAN . 36
8 MBMS Procedures . 37
8.1 MBMS Notificatio n . 37
8.1.1 Iu mode notification (UTRAN and GERAN) for GPRS. 37
8.1.2 A/Gb mode notification (GERAN) . 37
8.2 MBMS Multicast Service Activation . 38
8.2.1 Void . 40
8.3 MBMS Session Start Procedure . 40
8.3.0 General . 40
8.3.1 MBMS Session Start Procedure for GERAN and UTRAN for GPRS . 41
8.3.2 MBMS Session Start Procedure for E-UTRAN and UTRAN for EPS . 42
8.4 MBMS Registration Procedure . 45
8.5 MBMS Session Stop Procedure . 46
8.5.0 General . 46
8.5.1 MBMS Session Stop Procedure for GERAN and UTRAN for GPRS . 46
8.5.2 MBMS Session Stop Procedure for E-UTRAN and UTRAN for EPS . 47
8.6 MBMS De-Registration Procedure . 48
8.6.0 Common MBMS De-Registration procedure . 48
8.6.1 BM-SC initiated MBMS De-Registration Procedure . 50
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3GPP TS 23.246 version 15.0.0 Release 15 5 ETSI TS 123 246 V15.0.0 (2018-07)
8.7 MBMS Multicast Service Deactivatio n . 51
8.8 MBMS Session Update procedure . 53
8.8.1 General . 53
8.8.2 SGSN initiated Session Update for GERAN and UTRAN for MBMS Multicast service . 54
8.8.3 BM-SC initiated Session Update for GERAN and UTRAN for MBMS Broadcast service . 54
8.8.4 BM-SC initiated Session Update for EPS with E-UTRAN and UTRAN . 55
8.9 MBMS UE Context Synchronisation Procedure . 57
8.9a MBMS feature support indication . 58
8.10 Inter SGSN Routeing Area Update . 58
8.10a Inter-system Intra-SGSN change . 60
8.11 Inter SGSN Serving RNS Relocation Procedure . 60
8.12 MBMS Broadcast Service Activation . 62
8.13 MBMS Broadcast service de-activation . 62
8.14 Void . 62
8.15 MBMS UE Linking/De-linking mechanism . 62
8.16 MBMS Service Request Procedure . 63
8.17 Notification in case of parallel services . 64
8.17.1 Notification of incoming CS domain call during an ongoing MBMS session . 64
8.17.2 Notification of additional MBMS session during an ongoing MBMS session . 64
8.17.3 Notification of Mobile Terminating PS data during an ongoing MBMS session . 64
8.17.4 Notification of MBMS session during an ongoing CS or PS domain "connection" . 64
9 Security. 64
10 Charging requirement . 65
10.1 General . 65
10.2 Bearer level charging for MBMS . 65
10.3 Application level charging for MBMS . 65
10.4 Generation of charging records in the VPLMN . 65
11 Roaming Support for MBMS user services. 66
11.1 Scenarios description . 66
11.2 Scenario signalling flow . 66
11.2.1 APN selection . 66
Annex A (Informative): Void . 68
Annex B (Informative): Void . 69
Annex C (normative): TV services delivery using unicast mode & switching between
broadcast & unicast modes for E-UTRAN . 70
Annex D (normative): Shared MBMS Network over E-UTRAN . 72
D.1 General . 72
D.2 Architecture . 72
D.2.1 Architecture for per PLMN MBSFN synchronization area . 72
D.2.2 Reference Points . 73
D.2.3 UE Aspects . 73
D.2.4 TMGI for shared MBMS networks . 74
Annex E (normative): UE behaviour in Receive Only Mode . 75
Annex C (Informative): Change history . 77
History . 78
ETSI
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3GPP TS 23.246 version 15.0.0 Release 15 6 ETSI TS 123 246 V15.0.0 (2018-07)
Foreword
This Technical Specification 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 prese
...