ETSI TS 185 011 V2.1.1 (2009-07)

ETSI TS 185 011 V2.1.1 (2009-07)
Technical Specification


Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
Specification of Protocols for Customer Network Devices
enabling the IMS-based IPTV service usage

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2 ETSI TS 185 011 V2.1.1 (2009-07)



Reference
DTS/TISPAN-05020-NGN-R2
Keywords
protocol
ETSI
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3 ETSI TS 185 011 V2.1.1 (2009-07)
Contents
Intellectual Property Rights . 5
Foreword . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 8
4 Overview . . 9
4.1 Overview of IPTV CND Operating Modes and Reference Points . 9
4.1.1 Bridged mode . 10
4.1.2 Routed mode . 10
4.1.2.1 Routed NGN mode . 10
4.1.2.2 Routed CPN mode . 10
4.2 Data model information . 10
5 Procedures at the e1 reference point . 12
5.1 IPTV-CND Operating in Bridged Mode . 12
5.1.1 Procedures for Network Attachment. 12
5.1.2 Procedures for SDF Discovery . 12
5.1.3 Data model information . 12
6 Procedures at the e3 reference point . 12
6.1 IPTV-CND Operating in Bridged Mode and Routed NGN mode . 12
6.1.1 Procedures for remote management . 12
6.1.2 Procedures for SDF Discovery . 13
6.1.3 Procedures for NAT traversal (applicable only in routed mode) . 13
6.1.4 Data model information . 13
7 Procedures at the Gm reference point . 13
7.1 IPTV-CND Operating in Bridged Mode . 13
7.2 IPTV-CND Operating in Routed NGN Mode . 13
7.2.1 Procedures for IMS Registration . 13
7.2.2 Procedures for Service attachment . 13
7.2.3 Procedures for BC service . 13
7.2.4 Procedures for CoD service . 14
7.2.5 Procedures for Services Configuration . 14
7.2.6 Procedures for IPTV Presence . 14
7.2.7 Procedures for NPVR service . 14
7.2.8 Procedures for NAT traversal . 14
7.3 Data model information . 14
8 Procedures at the Ut reference point . 14
8.1 IPTV-CND Operating in Bridged Mode . 14
8.2 IPTV-CND Operating in Routed NGN Mode . 14
8.3 Data model information . 14
9 Procedures at the Xa reference point . 14
9.1 IPTV-CND Operating in Bridged Mode . 14
9.2 IPTV-CND Operating in Routed (NGN/CPN) Mode . 15
9.3 Data model information . 15
10 Procedures at the Xc reference point . 15
10.1 IPTV-CND Operating in Bridged Mode . 15
10.2 IPTV-CND Operating in Routed NGN Mode . 15
ETSI

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4 ETSI TS 185 011 V2.1.1 (2009-07)
10.2.1 Procedures for NAT traversal . 15
10.3 IPTV-CND Operating in Routed CPN Mode . 15
11 Procedures at the Xd reference point . 15
11.1 IPTV-CND Operating in Bridged Mode . 15
11.2 IPTV-CND Operating in Routed NGN Mode . 15
11.2.1 Procedures for NAT traversal . 15
11.3 IPTV-CND Operating in Routed CPN Mode . 15
11.3.1 Procedures for NAT traversal . 16
12 Procedures at the e1' reference point . 16
12.1 IPTV-CND Operating in Routed (NGN/CPN) Mode . 16
12.2 Procedures for network attachment . 16
12.3 Data model information . 16
12.4 CNG . 16
12.4.1 Procedures for network attachment . 16
12.4.2 Data model information . 16
13 Procedures at the e3' reference point . 17
14 Procedures at the C reference point . 17
14.1 IPTV-CND Operating in Routed NGN Mode . 17
14.1.1 Procedures for Content description Functions . 17
14.1.1.1 Procedures for Synchronization of Device List. 17
14.1.1.2 Procedures for Collecting Media List . 17
14.1.1.3 Procedure for Exposing Media List. 17
15 Procedures at the Gm' reference point . 18
15.1 IPTV CND Operating in Routed CPN Mode . 18
16 Procedures at the au reference point . 18
17 Data to be provisioned in the IPTV-CND by pre-configuration . 19
Annex A (informative): Bibliography . 20
History . 21

ETSI

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5 ETSI TS 185 011 V2.1.1 (2009-07)
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).
ETSI

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6 ETSI TS 185 011 V2.1.1 (2009-07)
1 Scope
The present document describes the protocols used on the reference points defined for the Customer Network Device
(CND) enabling the IMS-based IPTV service usage.
This description is based on the architecture and stage 2 information flows contained in TS 185 009 [4], the
architectural specifications of the Customer Network Gateway (CNG) described in TS 185 003 [3] as well as the
protocol suites defined for the reference points between the CPN itself and the NGN in TR 185 007 [i.3]. The present
document is to be regarded in close conjunction with TS 185 010 [5] as it covers only the IP TV related specifics.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
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 indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ETSI TS 182 027 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); IPTV Architecture; IPTV functions supported by the IMS
subsystem".
NOTE: The latest version in the V2.y.z series applies.
[2] ETSI TS 183 063 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); IMS-based IPTV stage 3 specification".
NOTE: The latest version in the V2.y.z series applies.
[3] ETSI TS 185 003 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); Customer Network Gateway Architecture and Reference
Points".
NOTE: The latest version in the V2.y.z series applies.
[4] ETSI TS 185 009 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); Architecture and reference points of a customer network
device for IMS based IPTV services".
NOTE: The latest version in the V2.y.z series applies.
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7 ETSI TS 185 011 V2.1.1 (2009-07)
[5] ETSI TS 185 010 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); Customer Premises Networks: Protocol Specification
(Stage 3)".
NOTE: The latest version in the V2.y.z series applies.
[6] UPnP™ AV 1.0 Specifications, UPnP Forum.
NOTE: Available at http://www.upnp.org/standardizeddcps/mediaserver.asp.
[7] DLNA Networked Device Interoperability Guidelines v 1.5 expanded Oct 2006.
NOTE: Available at http://www.dlna.org/members/guidelines/.
[8] ETSI TS 182 005: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Organization of user data".
[9] ETSI ES 283 003 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); IP Multimedia Call Control Protocol based on Session
Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3".
NOTE: The latest version in the V2.y.z series applies.
[10] ETSI TS 129 228: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); IP Multimedia (IM) Subsystem Cx and Dx Interfaces;
Signalling flows and message contents".
[11] ETSI TS 183 065 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networks (TISPAN); Customer Network Gateway Configuration Function; e3
Interface based upon CWMP".
NOTE: The latest version in the V2.y.z series applies.
[12] ETSI TS 183 019 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); Network Attachment; User-Network Interface Protocol
Definitions".
NOTE: The latest version in the V2.y.z series applies.
[13] ETSI TS 123 228: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2".
[14] ETSI ES 282 003 (V2.y.z): "Telecommunications and Internet converged Services and Protocols
for Advanced Networking (TISPAN); Resource and Admission Control Sub-System (RACS):
Functional Architecture".
NOTE: The latest version in the V2.y.z series applies.
[15] IETF RFC 2131: "Dynamic Host Configuration Protocol".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] ETSI TR 185 004: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); High level customer network architectures".
[i.2] ETSI TR 185 005: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Services requirements and capabilities for customer networks
connected to TISPAN NGN".
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8 ETSI TS 185 011 V2.1.1 (2009-07)
[i.3] ETSI TR 185 007: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Analysis of protocols for customer networks connected to
TISPAN NGN".
[i.4] TR-135 specifications: "Broadband Forum TR-135 "Data model for TR-069 enabled Set-Top
Box".
[i.5] TR-069 specification Annex G: "Broadband Forum TR-069 amendment 2 "CPE WAN
Management Protocol v1.1".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Customer Premises Network (CPN): in-house network composed by customer network gateway, customer network
devices, network segments, network adapters and nodes
NOTE 1: See TR 185 004 [i.1].
NOTE 2: Network segments are physical wired or wireless connections between customer premises network
elements; network adapters are elements performing a L1/L2 conversion between different network
segments; nodes are network adapters with L3 routing capabilities.
CPN Device: device that is physically installed in the CPN allowing user access to network services; this can be a
Customer Network Gateway with gateway functionalities towards the NGN, or a Customer Network Device being the
end user terminal
NOTE: See TR 185 005 [i.2].
Customer Network Gateway (CNG): CPN device acting as a gateway between the CPN and the NGN
NOTE 1: See TR 185 004 [i.1].
NOTE 2: CNG is able to perform networking functions from physical connection to bridging and routing
capabilities (L1-L3), but also possibly implementing functions related to the service support (up to L7).
Customer Network Device (CND): CPN device enabling the final user to have direct access to services through a
specific user interface
NOTE 1: See TR 185 004 [i.1].
NOTE 2: CNDs can be dedicated to the internet, conversational and audio-video services. But they could be also
Consumer Electronics equipment and other devices which may have nothing to do with these premium
services (e.g. services performing a content sharing within a CPN, typically between a PC and a music
system).
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ALG Application Layer Gateway
B2BUA Back-to-Back User Agent
BC BroadCast
CDS Content Directory Service
CND PPF CND Plug and Play Function
CND Customer Network Device
CND-AtF CND Attachment Function
CNG Customer Network Gateway
CNG-ACF CNG-Admission Control Function
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9 ETSI TS 185 011 V2.1.1 (2009-07)
CNGCF Customer Network Gateway Configuration Function
CNG-NFF CNG NAPT and Firewall Function
CNG-PCF CNG Policy Control Function
CoD Content on Demand
CPN Customer Premises Network
CWMP CPE (Customer Premises Equipment) WAN Management Protocol
DHCP Dynamic Host Configuration Protocol
DNS SRV Domain Name Server Service
FW Firewall
IETF Internet Engineering Task Force
IGMP Internet Group Management Protocol
IMS IP Multimedia Subsystem
IP Internet Protocol
IPTV IP Television
NAPT Network Address and Port Translation
NAT Network Address Translation
NGN Next Generation Network
NPVR Networked Personal Video Recorder
P-CSCF Proxy-Call Session Control Function
PSI Public Service Identifier
QoS Quality of Service
RTP Real-time Transport Protocol
SDF Service Discovery Function
SIP Session Initiation Protocol
STB Set Top Box
UPnP Universal Plug and Play
URI Uniform Resource Identifier
WAN Wide Area Network
4 Overview
The clause briefly describes applicability of the protocols discussed further in the present document to the Reference
Points and Functional Entities defined in TS 185 003 [3] and TS 185 009 [4].
NOTE: The IPTV CND functions are described within the specification document reference TS 185 009 [4].
4.1 Overview of IPTV CND Operating Modes and
Reference Points
There are 3 operating modes defined in TS 185 009 [4] and to be considered here.
• Bridged mode: In this mode, the IPTV CND is working in compliance with TS 183 063 [2] and is connected
to the NGN network or connects to the NGN via a CNG operating in bridged mode. In bridged mode of
operation, the CNG provides only L1-L2 functionality. The CND connects over Gm to the NGN.
• Routed mode: In this mode, the IPTV CND connects to the NGN via a CNG operating in routed mode and is
capable to interact with other devices in the CPN with other protocols above L3. In routed mode of operation,
the CNG includes routing and service layer functionality as well (L3 and above). The routed mode shall be
related to an authentication session. A session operating in one of the following routed modes can only operate
in one of them at the same time:
- NGN mode: IPTV CND connects directly to the NGN through the CNG over Gm. The CNG-PCF and
CNG-NFF as defined in TS 185 003 [3] may perform functionality such as NAPT and CNG internal
QoS.
- CPN mode: IPTV CND connects to the NGN through CNG over Gm'. The CNG-SIP Proxy B2BUA,
CNG-ACF, CNG-PCF as defined in TS 185 003 [3] may perform functionality such as NAT/FW
traversal, CNG internal QoS or IETF SIP to IMS SIP conversion.
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10 ETSI TS 185 011 V2.1.1 (2009-07)
In the routed mode, e1' and e3' are sharing a similar procedure for routed NGN and routed CPN modes; e1' and e3' are
therefore described in a common section for these two modes.
On the other hand, interface C will have different procedures for these two modes and are therefore described in
separate clauses.
4.1.1 Bridged mode
Reference points Gm, Xc, Xd, Ut, Xa all conforms to TS 183 063 [2].
Reference point e1 conforms to TS 183 019 [12].
Reference point e3 conforms to TS 183 065 [11].
4.1.2 Routed mode
Reference points Xc, Xd, Ut, Xa conforms to TS 183 063 [2].
The e1 reference point is described in clause 5.
The e3 reference point is described in clause 6.
4.1.2.1 Routed NGN mode
The C reference point is described in clause 14.1.
The Gm reference point is described in clause 7.2.
4.1.2.2 Routed CPN mode
The C reference point is described in clause 14.2.
The Gm' reference point is described in clause 15.1.
4.2 Data model information
Table 1 summarizes parameters to be provisioned in the CND, thanks to the CNGCF (reference point e3), through DHCP
options (reference point e1') or by pre-configuration. Some kinds of data are grouped together, according to the SIP
message types in which they are used:
The table describes the data to be provisioned and some related information:
• Entity responsible for the provisioning: the entity which is responsible for the provisioning in the TISPAN
IMS network. In specific cases an entity can be responsible for the provisioning as a relay. This means that
such an entity has been provisioned by another equipment during a previous phase (e.g. provisioning of the
SDF Address through DHCP option 125 by the CNG in a routed NGN mode to the IPTV CND, while the
CNG has been provisioned with this parameter by the CNGCF).
• Requirement level: gives the level of the required parameter as it is mentioned in TISPAN specifications.
This means that the table informs whether the parameter must or may be provisioned in the CND.
Table 1
Data Description (ref) Entity Parameters Requirement
responsible for manageable level
the provisioning by TR-
069/TR-104
IMPI Authentication Username for IMS CNGCF Yes Mandatory
authentication
IMPU SIP URI CNGCF Yes Mandatory
P-CSCF Host name or IP address of the SIP CNGCF or DHCP Yes Mandatory
Address Proxy server
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11 ETSI TS 185 011 V2.1.1 (2009-07)
Data Description (ref) Entity Parameters Requirement
responsible for manageable level
the provisioning by TR-
069/TR-104
Registrar Host name or IP address of the SIP CNGCF Yes Mandatory
Server registrar server
Registration Timer to send Register messages CNGCF Yes Mandatory
period periodically
Vendor Class Device identifier Pre-configured Not applicable Optional
Id
IPTV service service provider name CNGCF or DHCP No Mandatory
provider server
name (see
note 1)
IPTV service service provider domain name CNGCF or DHCP No
provider server
domain name
(see note 1)
IPTV service service provider URI CNGCF, DNS No Mandatory
provider URI SRV or DHCP
(see note 1) server of the
CNG (option 43
or 125),
pre-configured
not provi
...