ETSI TS 182 028 V3.5.1 (2011-02)

Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN integrated IPTV subsystem Architecture

RTS/TISPAN-02082-NGN-R3

General Information

• Status: Published
• Publication Date: 23-Feb-2011
• Technical Committee: TISPAN 2 - TISPAN Architecture
• Current Stage: 12 - Completion
• Due Date: 02-Mar-2011
• Completion Date: 24-Feb-2011

Standards Content (Sample)

Technical Specification
Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
NGN integrated IPTV subsystem Architecture

2 ETSI TS 182 028 V3.5.1 (2011-02)

Reference
RTS/TISPAN-02082-NGN-R3
Keywords
architecture, IP, TV
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ETSI
3 ETSI TS 182 028 V3.5.1 (2011-02)
Contents
Intellectual Property Rights . 6
Foreword . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 8
3 Definitions and abbreviations . 9
3.1 Definitions . 9
3.2 Abbreviations . 9
4 NGN IPTV subsystem . 10
4.1 Concept and Architectural Approach . 11
4.2 High Level Architecture Overview . 11
4.3 Functional groups . 11
4.3.1 Application Functions . 12
4.3.2 IPTV Service Control and Media Delivery Functions . 12
4.3.3 Transport Functions . 12
4.3.4 End User Functions . 12
4.3.5 Management Functions . 12
4.3.6 Content Provider Functions . 13
4.4 IPTV services . 13
5 NGN Integrated IPTV subsystem functional architecture . 14
5.1 Functional entities . 16
5.1.1 Core IPTV functions . 16
5.1.2 Supporting IPTV functions . 18
5.1.3 Transport functions . 18
5.1.4 Customer Transport functions. 19
5.2 Reference points . 19
5.2.1 Tr - IPTV transactional . 19
5.2.2 Ct2 - UE facing IPTV control . 20
5.2.3 Sa - IPTV control and Media Control Function . 20
5.2.4 Ss - Service selection . 20
5.2.5 Xc - UE and IPTV Media Control Function . 20
5.2.6 Xp - IPTV Media Control Function and IPTV Media Delivery Function . 21
5.2.7 Xd - UE and IPTV Media Delivery Function . 21
5.2.8 e2 - NASS access . 21
5.2.9 e4 - NASS and RACS . 21
5.2.10 Gq' - RACS . 22
5.2.11 Ud - access to IPTV user data . 22
5.2.12 Ug - access to NGN user data . 22
5.2.13 Ss' - access to SD&S data . 22
5.3 Generic IPTV Capabilities . 23
5.3.1 Inter-destination media synchronization . 23
5.3.1.1 Synchronization architecture . 23
5.3.1.1.1 Functional entities MSAS and SC . 23
5.3.1.1.2 Mapping onto the IPTV architecture . 24
5.3.1.1.3 Modification and re-origination of media streams . 24
5.3.1.2 Synchronization reference points . 25
5.3.1.2.1 MSAS-SC reference point (Sync) . 25
5.3.1.2.2 MSAS-SC' reference point (Sync') . 25
5.4 Elementary functions . 26
6 Operational framework. 27
ETSI
4 ETSI TS 182 028 V3.5.1 (2011-02)
6.1 IPTV delivery modes. 27
6.2 Operational modes . 27
6.2.1 Coupled mode . 28
6.2.2 Decoupled mode . 29
6.2.3 Redirect mode . 30
6.2.4 Proxy mode . 30
6.3 Service initialization . 31
6.3.1 Functional steps for UE start-up . 31
6.3.2 Service discovery and selection . 32
6.4 Nomadism . 33
6.5 Support of Mobility Capabilities . 33
7 Security. 34
7.1 Content Protection . 34
7.2 Service Protection. 34
8 Management . 35
9 User data . 35
9.1 IPTV profiles . 35
9.2 User data location . 36
10 Charging . 37
11 Procedures . 37
11.1 Linear TV . 37
11.2 Multimedia Content on Demand (CoD) . 38
11.2.1 Optimized bandwidth utilization during CoD . 40
11.3 Media broadcast with trick modes . 41
11.4 Near CoD. 42
11.5 Push CoD. 44
11.5.1 Push CoD procedures using notification . 44
11.6 User generated content . 45
11.6.1 Overview . 45
11.6.2 UGC creation procedure . 45
11.6.3 UGC watching procedure . 47
11.7 Pay Per View . 48
11.8 Messaging and notification services . 49
11.8.1 Messaging procedures. 49
11.8.2 Notification procedures . 49
11.9 Recommendations . 50
11.9.1 Recommendations overview . 51
11.9.2 Recommendations procedures . 51
11.10 Advertising . 53
11.10.1 Advertising procedures . 53
11.10.2 Network side unicast based advertisement . 54
11.10.3 Advertising procedures using notification . 56
11.11 Procedures for inter-destination media synchronization . 56
11.11.1 Mapping 1: SC in UE. 56
11.11.2 Mapping 2: SC in Transport . 57
11.12 Service continuation . 57
11.12.1 Procedure for unicast service continuation between NGN IPTV UEs . 57
11.12.2 Service continuation between fixed NGN between fixed NGN Integrated IPTV UE and 3GPP
mobile UE . 59
11.13 Remote control of IPTV services . 60
11.13.1 Procedure for Remote Mobile Control of IPTV (Provisioning). 60
11.13.2 Procedure for Remote Mobile Control of IPTV (Operations) . 61
11.14 Personalized Channel . 62
11.15 Time Shift TV . 63
11.16 PVR service . 63
11.17 Emergency alert . 64
11.18 Content Bookmark . 64
11.19 Interactive TV procedures . 65
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5 ETSI TS 182 028 V3.5.1 (2011-02)
Annex A (informative): Interactions between other TISPAN services and IPTV services . 67
A.1 Interactions based on an OSA/Parlay/Parlay X SCS . 67
Annex B (informative): Interaction procedure between IPTV and other service level
subsystems . 69
Annex C (informative): Presence attributes for IPTV . 71
Annex D (informative): Possible evolution path for NGN Integrated IPTV . 72
D.1 Evolution of IPTV architectures towards NGN . 72
D.2 Possible migration and switch over scenarios . 73
Annex E (informative): Mapping of elementary functions . 74
E.1 Mapping between elementary functions and generic capabilities . 74
E.2 Mapping between elementary functions and functional entities . 76
E.3 Mapping between elementary functions and IPTV services . 77
Annex F (informative): NGN integrated IPTV mapping to other IPTV architectures . 79
F.1 Mapping between NGN integrated IPTV subsystem and ITU-T non-IMS IPTV architecture . 79
Annex G (informative): Interconnection Models supporting Mobility Capabilities . 81
Annex H (informative): SCTE based targeted advertising architecture . 82
H.1 Definitions . 82
H.2 SCTE-130 based Advertising Architecture . 82
H.3 Reference points . 83
H.3.1 IPTV Applications - SCTE-130 ADS (ADx) . 83
H.3.2 IPTV Media Function (MF) - SCTE-130 ADS (ADy) . 84
H.3.3 MF Ad Splicer - TISPAN Ad MF (ADc) . 84
H.3.4 IPTV User Equipment (UE) - SCTE-130 ADS (ADz) . 84
H.4 Mapping between TISPAN entities and SCTE-130 entities . 84
Annex I (informative): NGN integrated IPTV support for hybrid services . 86
Annex J (informative): Bibliography . 87
Annex K (informative): Change history . 88
History . 90

ETSI
6 ETSI TS 182 028 V3.5.1 (2011-02)
Intellectual Property Rights
IPRs essential or potentially essential to the present document 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 (http://webapp.etsi.org/IPR/home.asp).
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.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Telecommunications and Internet
converged Services and Protocols for Advanced Networking (TISPAN).
The present document defines the TISPAN NGN Release 3 IPTV architecture: Integrated subsystem for IPTV functions
in NGN.
Introduction
The present document provides an architectural framework for the end-to-end Internet Protocol Television (IPTV)
subsystem within the Next Generation Networks architecture. The IPTV framework is designed for interoperability with
other NGN service subsystems and components.
The present document identifies functional entities and reference point, which needs to be exposed from IPTV
subsystem.
ETSI
7 ETSI TS 182 028 V3.5.1 (2011-02)
1 Scope
The present document describes the IPTV functional architecture and functions of an NGN Integrated IPTV system by
integrating of IPTV functions into the NGN architecture. For example, interactions and information flows between the
IPTV functional entities and other functional entities will be specified. The specification starts from outlining high-level
IPTV functional architecture, functional groups and is further developed into the more detailed functional architecture,
reference points and operational modes.
The architecture is intended to support requirements defined by the respective ETSI TISPAN requirement
definitions [1] and allow integration new or existing IPTV solutions (such as those defined by DVB, ATIS IIF, ITU,
etc.) within the NGN architecture.
The resulting architecture should, should rely as much as possible on common components and integrates, coexist with
other TISPAN NGN services.
The following areas are covered:
• Authentication and authorization.
• Content Protection (including DRM).
• Capability exchange.
• Resource Management.
• Policy Management.
• Charging.
• User Profiles.
The architecture focuses on closer integration between IPTV services and NGN networks, migration scenarios from
existing solutions (i.e. DVB-IPI, ATIS-IIF) into NGN and common components.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 181 016 (Release 3): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); Service Layer Requirements to integrate NGN
services and IPTV".
[2] ETSI TS 102 034: "Digital Video Broadcasting (DVB); Transport of MPEG-2 TS Based DVB
Services over IP Based Networks".
[3] ETSI TS 122 240: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Service requirements for 3GPP Generic User Profile
(GUP); Stage 1 (3GPP TS 22.240)".
ETSI
8 ETSI TS 182 028 V3.5.1 (2011-02)
[4] ETSI TS 123 240: "Universal Mobile Telecommunications System (UMTS); LTE; 3GPP Generic
User Profile (GUP) requirements; Architecture (Stage 2) (3GPP TS 23.240)".
[5] ETSI ES 282 001 (Release 2): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); NGN Functional Architecture ".
[6] ETSI TS 182 027 (Release 3): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); IPTV Architecture; IPTV functions supported by
the IMS subsystem".
[7] IETF RFC 2782: "A DNS RR for specifying the location of services (DNS SRV)".
[8] ETSI ES 282 007 (Release 2): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); IP Multimedia Subsystem (IMS); Functional
architecture".
[9] ETSI ES 282 004 (Release 2): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); NGN Functional Architecture; Network
Attachment Sub-System (NASS)".
[10] ETSI ES 282 003 (Release 2): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); Resource and Admission Control Sub-system
(RACS); Functional Architecture".
[11] ETSI TS 187 003 (Release 2): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); NGN Security; Security Architecture".
[12] ETSI ES 282 010 (Release 2): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); Charging management [Endorsement of 3GPP TS
32.240 Release 7, 3GPP TS 32.260 Release 7, 3GPP TS 32.297 Release 7, 3GPP TS 32.298
Release 7 and 3GPP TS 32.299 Release 7, modified]".
[13] ETSI TS 132 240: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); LTE; Telecommunication management; Charging
management; Charging architecture and principles (3GPP TS 32.240)".
[14] ETSI TS 183 064 (Release 2): "Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN); Dedicated IPTV subsystem stage 3 specification".
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] "An application-level QoS comparison of inter-destination synchronization schemes for
continuous media multicasting", Toshiro Nunome; Shuji Tasaka, IEICE transactions on
communications, ISSN 0916-8516, Vol. 87 (2004), No. 10, pp. 3057-3067 (11).
[i.2] ETSI ES 204 915 (all parts): "Open Service Access (OSA); Application Programming Interface
(API) (Parlay 6)".
[i.3] ETSI ES 202 504 (all parts): "Open Service Access (OSA); Parlay X Web Services; (Parlay X 3)".
[i.4] ETSI TR 187 013: "Telecommunications and Internet Converged Services and Protocols for
Advanced Networking (TISPAN); Feasibility study on IPTV security architecture".
[i.5] SCTE-130 part 1: "Digital Program Insertion - Advertising Systems Interfaces; Part 1 Advertising
Systems Overview".
[i.6] SCTE-130 part 2: "Digital Program Insertion - Advertising Systems Interfaces; Part 2: Core Data
Elements".
[i.7] SCTE-130 part 3: "Digital Program Insertion - Advertising Systems Interfaces; Part 3: Ad
Management Service (ADM) Interface".
ETSI
9 ETSI TS 182 028 V3.5.1 (2011-02)
[i.8] SCTE-35: "Digital Program Insertion Cueing Message for Cable".
[i.9] ETSI TS 182 028 (V2.0.0): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); IPTV Architecture; Dedicated subsystem for IPTV
functions".
[i.10] ITU-T Recommendation Y.1910: "IPTV functional architecture".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Inter-Destination Media Synchronization (IDMS): feature for exchanging arrival time and delay information,
resulting in substantial synchronisation of the media outputs of two or more UEs, as presented to their users
IPTV content identifier: super class of the identifiers that identify content in specific IPTV services
media stream identifier: identifier carried in a unicast or multicast media stream that identifies that specific media
stream
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ADM Ad Management Service
ADS Ad Decision Service
ADSS Ad Selection Service
A-RACF Access Resource And Admission Control Function
AS Application Server
ASF Application Server Function
BC Broadcast
BCG Broadcast Content Guide
BPG Broadcast Program Guide
BTV Broadcast TV
CA Conditional Access
CDR Content Data Records
CF Customer Facing
CFIA Customer Facing IPTV Application
CIS Content Information Service
CM Content Marking
CoD Content on Demand
CR Content Recommendation
CRS Content and Service Recommendation Service
CSCF Call Setup Control Function
CSP Content and Service Protection
DHCP Dynamic Host Configuration Protocol
DNG Delivery Network Gateway
DNS Domain Name Server
DRM Digital Rights Management
EPG Electronic Program Guide
FE Functional Entity
GUP Generic User Profile
HD High Definition
ID IDentification
IDMS Inter-Destination Media Synchronization
IMS IP Multimedia Subsystem
IP Internet Protocol
ETSI
10 ETSI TS 182 028 V3.5.1 (2011-02)
IPTV IP Television
IPTVC IPTV Control
iTV Interactive TV
IUDF IP User Data Function
MCF Media Control Function
MDF Media Delivery Function
MF Media Function
MSAS Media Synchronization Application Server
NASS Network Attachment SubSystem
NAT Network Address Translation
nCoD Near CoD
NGN Next Generation Network
NPT Normal Playout Time
nPVR networked Personal Video Recorder
PCh Personalized Channel
pCoD Push CoD
PES PSTN/ISDN Emulation Subsystem
POIS Placement Opportunity Information Service
PPV Pay Per View
PSS Packet-switched Streaming Service
PVR Personal Video Recorder
QoE Quality of Experience
QoS Quality of Service
RACS Resource and Admission Control Subsystem
RTCP Real Time Control Protocol
RTP Real Time Protocol
SC Synchronization Client
SCF Service Control Function
SCP Service & Content Protection
SCS Service Capability Server
S-CSCF Serving CSCF
SCTE Society of Cable Telecommunications Engineers
SD Standard Definition
SD&S Service Discovery and Selection
SDF Service Discovery Function
SIS Subscriber Information Service
SKMF Service Key Management Functions
SMF Service Membership Functions
SP Service Provider
SPD Service Provider Discovery
SPF Service Protection Functions
SRV Service Record
SSF Service Selection Function
TAI Targeted Advertising
TPF Transport Processing Function
UCG User Created Content
UDAF User Data Access Function
UDF User Data Function
UE User Equipment
UGC User Generated Content
UPSF User Profile Server Function
URL Uniform Resource Locator
XDMS XML Document Management Server
4 NGN IPTV subsystem
This clause outlines architectural approach adopted in the present document. The approach is then applied to introduce
high level IPTV architecture and functional groups in NGN architecture.
ETSI
11 ETSI TS 182 028 V3.5.1 (2011-02)
4.1 Concept and Architectural Approach
The present document focuses on defining flexible functional architecture, which can:
• allow development of new IPTV subsystem in NGN;
• integrate existing IPTV subsystem in NGN;
• extend both to support other NGN services;
as defined in the service level requirements [1].
The support for other NGN services has a wide meaning, e.g. the functional architecture would allow coupling
functionality of IPTV subsystem with functionality of PES or IMS subsystem, which in-turn may support some IPTV
features as defined in [6].
In order to achieve high level of flexibility, the work is focused on identifying and standardizing functional entities and
reference points, which needs to be exposed from IPTV subsystem to the rest of NGN. Internal IPTV functional entities
and reference points are identified and described for the completeness of the end to end architecture without intend to
standardize them.
The architectural approach considers IPTV subsystem as a functional area, which is integrated into NGN via
standardized reference points and delivers service level requirements, while allowing internal flexibility and extensions
for new service types.
The IPTV integrated subsystem is based upon IPTV domains defined in TS 181 016 [1], clause 4.1 IPTV Roles.
4.2 High Level Architecture Overview
Figure 1 presents high-level NGN IPTV functional overview and location of IPTV capabilities in the TISPAN NGN.
The high level overview illustrates principal functional groups for NGN IPTV services. The functional groups map to
IPTV roles as defined in clause 4.3.
The functional groups are used to derive more detailed functional architecture, however, allocation of functions across
operational and organizational boundaries will vary between implementations.
Application Functions
Manage- Content
End-
ment Provider
User IPTV Service Control IPTV Media Control and
Func- Func-
Func- Functions Delivery Functions
tions tions
tions
Transport Functions
Figure 1: High-level NGN based IPTV functional architecture
4.3 Functional groups
In the context of the present document functional groups are used to describe several functional entities grouped
together according to some condition, e.g. location in the certain functional layer.
ETSI
12 ETSI TS 182 028 V3.5.1 (2011-02)
4.3.1 Application Functions
Within the present document, the term "Application Functions" includes IPTV and NGN Application Functions.
NGN Applications: provides the user with rich multimedia applications distributed across multiple NGN subsystems.
For example, session follow up or messaging exchange between fixed and mobile terminals, presentation of incoming
calls and phone list management on TV, IPTV or gaming applications based on user presence. NGN applications also
provide operators with centralized NGN management interface to multiple subsystems for content management,
charging, interactions with IMS services, others. NGN applications may include application functions used across
multiple service domains for applications interactions, e.g. IMS and IPTV interactions. NGN applications may include
service mediation and coordination functionality.
IPTV Applications: customer facing and operator facing.
Customer facing IPTV applications provides the server side functions to enable customer facing IPTV applications,
expose IPTV services to other NGN application and manage IPTV subsystem. Customer facing IPTV applications
provide service provisioning, selection and authorization of IPTV services.
Operator facing IPTV applications provide operator control over IPTV subsystem in NGN, content preparation and
media management, content licensing, subscriber management, offer creation, user profiles.
Server side IPTV applications expose IPTV services to NGN.
4.3.2 IPTV Service Control and Media Delivery Functions
Enables operation of IPTV services in NGN. The key functionality of this layer is to provide, but not limited to, media
distribution, selection and allocation of media delivery units, IPTV session control and management, interactions with
other NGN components for admission control and resource allocation, as well as collecting charging and QoS
information.
4.3.3 Transport Functions
Transport Control Functions: contains common NGN components RACS and NASS, provides policy control,
resource reservation and admission control as well as IP address provisioning, network level user authentication and
access network configuration as defined in TISPAN. Transport layer definition includes definition from [5].
Transport Processing Functions: the Transport Process Functions represents network access links and IP core. The IP
core is in charge of data transmission with quality of service support.
4.3.4 End User Functions
Customer transport: provides connection to one or multiple access networks and one or multiple home network
segments.
UE: provides user interactions and control over delivery of IPTV and other NGN services. IPTV terminal processes
serviced multimedia and presents it in user acceptable format. User interactions may include service discovery,
selection and authorization. Multimedia processing may include requesting multimedia asset in supported encoded
format, decoding and presenting it to the user in acceptable format, trick mode operators, channel change.
4.3.5 Management Functions
The IPTV Management Functions include:
Service Fulfilment: the functions required to fulfil the IPTV service to the End-User.
Service Assurance: the functions required to assure the IPTV service provided to the End-User.
Service Billing: the functions required to ensure proper billing to the end user of delivered IPTV services.
ETSI
13 ETSI TS 182 028 V3.5.1 (2011-02)
4.3.6 Content Provider Functions
The functions provided by the entity that owns or is licensed to sell content or content assets. These are normally the
sourcing of content, metadata and usage rights.
4.4 IPTV services
NGN integrated IPTV supports the following IPTV services [1]:
• Broadcast TV (with or without trick modes).
• Content on Demand (CoD).
• Personal Video Recording (cPVR, nPVR).
• Pay Per View (PPV).
• Interactive TV (iTV).
• near CoD (nCoD).
• push CoD (pCoD).
• User Generated Content (UGC).
• Profiling and personalization.
• Content Recommendations (CR).
• Advertising (Ad) and Targeted Advertising (TAI).
• Messaging services.
• Notification services.
• Personalized channel.
• Bookmarks or Content Marking (CM).
Table 1A provides list of services and feature supported by NGN integrated architecture.
ETSI
14 ETSI TS 182 028 V3.5.1 (2011-02)
Table 1A: IPTV services and features supported by NGN integrated IPTV subsystem
NGN IPTV Release TISPAN R2 TISPAN R3
Service & Feature NGN dedicated IPTV subsystem NGN integrated IPTV subsystem
Specification TS 182 028 R2 [i.9] Present document
Linear/ Broadcast TV M M
Linear/ Broadcast TV with Trick Play M M
Time Shifted TV O O
Content on Demand M M
Push CoD M M
Near COD M M
Network PVR M M
Client PVR NA O
Audio M M
Pay-Per-View M M
Interactive TV M M
Service discovery M M
Service Information (EPG) M M
Parental Control M M
User Profiling & personalization O O
Communications and Messaging O O
Notifications O O
IPTV Presence O O
Interaction between users O O
Interaction with NGN services O O
Advertising M M
Targeted Advertising NA O
User Generated Content NA O
Internationalization O O
Content recommendation NA O
Games NA O
Picture NA O
Bookmarks (Content Marking) NA O
Personalized channel NA O
Personalized Service Composition NA O
Service Portability NA O
Service Continuation between IPTV UEs NA O
Service Continuation fixed-mobile NA O
Remote Control of IPTV services NA O
Emergency Information NA O
rd
NA O
Interaction with 3 Party application
(e.g. Parlay)
Interaction with Internet Services NA O
Service synchronization NA O
Incoming call management O O
NOTE: M - Mandatory, O- Optional, NA - not available or not specified (out of scope in release) in architecture.

5 NGN Integrated IPTV subsystem functional
architecture
The context of the IPTV architecture is represented "end to end" for completeness, starting from the UE on the left to
the management functions and content providers functions on the right. However, the functions on the right
(e.g. management and content provider) are outside the present document.
Integrated NGN IPTV functional architecture is presented in figure 2.
ETSI
15 ETSI TS 182 028 V3.5.1 (2011-02)
s
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NGN Applications
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UE & NGN
o
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NGN
Apps Intr t
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NGN App
User c
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UDF
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Media g r
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SCP
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Customer e
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C
IPTV
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Control n
Distribution
a
Sa
M
Media Control
a
Xc i
Function
d
e
M
Xp
IPTV Service Control
...