ETSI TS 183 017 V2.3.1 (2008-09)

Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Resource and Admission Control: DIAMETER protocol for session based policy set-up information exchange between the Application Function (AF) and the Service Policy Decision Function (SPDF); Protocol specification

RTS/TISPAN-03129-NGN-R2

General Information

• Status: Published
• Publication Date: 23-Sep-2008
• Technical Committee: TISPAN 3 - TISPAN Protocols
• Current Stage: 12 - Completion
• Due Date: 12-Aug-2008
• Completion Date: 24-Sep-2008

Standards Content (Sample)

ETSI TS 183 017 V2.3.1 (2008-09)
Technical Specification

Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
Resource and Admission Control:
DIAMETER protocol for session based policy set-up
information exchange between the Application Function (AF)
and the Service Policy Decision Function (SPDF);
Protocol specification

---------------------- Page: 1 ----------------------
2 ETSI TS 183 017 V2.3.1 (2008-09)



Reference
RTS/TISPAN-03129-NGN-R2
Keywords
interface, stage 3
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2008.
All rights reserved.

TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI

---------------------- Page: 2 ----------------------
3 ETSI TS 183 017 V2.3.1 (2008-09)
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 Gq' interface . 9
4.1 Overview . 9
4.2 Gq' reference model . 9
4.3 Functional elements and capabilities . 10
4.3.1 Service-based Policy Decision Function (SPDF) . 10
4.3.2 Application Function (AF) . 10
5 Procedures descriptions . 10
5.1 Procedures at the AF . 10
5.1.1 Initial reservation for a session . 10
5.1.2 Session modification . 11
5.1.3 Session termination . 12
5.2 Procedures at the SPDF . 13
5.2.1 Initial reservation for a session . 13
5.2.2 Session modification . 13
5.2.3 Session termination . 13
5.2.4 SPDF notifications . 14
5.3 IMS related P-CSCF procedures . 14
5.3.1 Provisioning of service information at the P-CSCF . 14
5.3.2 Enabling IP flows at the P-CSCF . 15
6 Use of the Diameter base protocol . 15
6.1 Securing Diameter messages . 15
6.2 Accounting functionality . 15
6.3 Use of sessions . 15
6.4 Transport protocol . 15
6.5 Routing considerations . 15
6.6 Advertising application support . 15
7 DIAMETER application. 16
7.1 Commands . 16
7.1.1 AA-Request (AAR) command . 16
7.1.2 AA-Answer (AAA) command . 17
7.1.3 Re-Auth-Request (RAR) command . 17
7.1.4 Re-Auth-Answer (RAA) command . 18
7.1.5 Session-Termination-Request (STR) command . 18
7.1.6 Session-Termination-Answer (STA) command . 18
7.1.7 Abort-Session-Request (ASR) command . 19
7.1.8 Abort-Session-Answer (ASA) command . 19
7.2 Experimental-Result-Code AVP values . 19
7.2.1 Experimental-Result-Code AVP values imported from TS 129 209 . 19
7.2.2 Experimental-Result-Code AVP values imported from ES 283 026 . 20
7.2.3 Experimental-Result-Code AVP values defined in the present document . 20
7.3 AVPs . 20
7.3.1 Binding-information AVP . 23
7.3.2 Binding-Input-List AVP . 23
ETSI

---------------------- Page: 3 ----------------------
4 ETSI TS 183 017 V2.3.1 (2008-09)
7.3.3 Binding-Output-List AVP . 23
7.3.4 V6-Transport-address AVP . 23
7.3.5 V4-Transport-address AVP . 24
7.3.6 Port-number AVP . 24
7.3.7 Reservation-Class AVP . 24
7.3.8 Latching-indication AVP . 24
7.3.9 Reservation-priority AVP . 24
7.3.10 Globally-unique-address AVP . 24
7.3.11 Address-realm AVP . 25
7.3.12 Framed-IP-address AVP . 25
7.3.13 Framed-IPv6-prefix AVP . 25
7.3.14 Abort-cause AVP . 25
7.3.15 AF-application-identifier AVP . 25
7.3.16 AF-charging-identifier AVP . 25
7.3.17 Flow-description AVP . 25
7.3.18 Flow-grouping AVP . 26
7.3.19 Flow-number AVP . 26
7.3.20 Flows AVP. 26
7.3.21 Flow-status AVP . 26
7.3.22 Flow-usage AVP . 27
7.3.23 Specific-action AVP . 27
7.3.24 Max-requested-bandwidth-DL AVP . 28
7.3.25 Max-requested-bandwidth-UL AVP . 28
7.3.26 Media-component-description AVP . 28
7.3.27 Media-component-number AVP . 29
7.3.28 Media-sub-component AVP . 29
7.3.29 Media-type AVP . 29
7.3.30 RR-bandwidth AVP . 30
7.3.31 RS-bandwidth AVP . 30
7.3.32 SIP-forking-indication AVP . 30
7.3.33 Service-Class AVP . 30
7.3.34 Transport-Class AVP . 30
7.3.35 Overbooking-indicator . 30
7.3.36 Codec-Data AVP . 31
7.3.37 Authorization-Package-Id . 31
7.3.38 Media-Authorization-Context-Id . 31
7.4 Use of namespaces . 31
7.4.1 AVP codes . 31
7.4.2 Experimental-result-code AVP values . 31
7.4.3 Command code values . 31
7.4.4 Application-ID value . 31
Annex A (normative): Support for SIP forking . 32
A.1 Support for SIP forking . 32
A.1.1 Authorization of resources for early media for forked responses . 32
A.1.2 Updating the authorization information at the final answer . 32
Annex B (normative): QoS parameter mapping for IMS for unicast flows . 33
B.1 SDP to service information mapping in AF . 33
Annex C (normative): QoS parameter mapping for IMS for multicast flows . 37
C.1 SDP to service information mapping in AF for the IMS with multicast flows . 37
Annex D (informative): Bibliography . 40
Annex E (informative): Change history . 41
History . 42

ETSI

---------------------- Page: 4 ----------------------
5 ETSI TS 183 017 V2.3.1 (2008-09)
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

---------------------- Page: 5 ----------------------
6 ETSI TS 183 017 V2.3.1 (2008-09)
1 Scope
The present document provides the stage 3 specification of the Gq' interface. The functional requirements and the
stage 2 specifications of the Gq' interface are contained in ES 282 001 [1] and ES 282 003 [2]. The Gq' interface is the
interface between the Application Function (AF) and the Service Policy Decision Function (SPDF) and is used for
session based policy set-up information exchange between the SPDF and the AF.
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.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
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 ES 282 001: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); NGN Functional Architecture".
[2] ETSI ES 282 003: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Resource and Admission Control Sub-System (RACS):
Functional Architecture".
[3] IETF RFC 3588: "Diameter Base Protocol".
[4] ETSI TS 129 209: "Universal Mobile Telecommunications System (UMTS); Policy control over
Gq interface (3GPP TS 29.209 Release 6)".
[5] IETF RFC 4005: "Diameter Network Access Server Application".
[6] ETSI TS 133 210: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); 3G security; Network Domain Security (NDS); IP network
layer security (3GPP TS 33.210)".
ETSI

---------------------- Page: 6 ----------------------
7 ETSI TS 183 017 V2.3.1 (2008-09)
[7] ETSI ES 283 003: " 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 [3GPP TS 24.229
(Release 7), modified]".
[8] ETSI ES 283 018: "Telecommunications and Internet Converged Services and Protocols for
Advanced Networking (TISPAN); Resource and Admission Control: H.248 Profile for controlling
Border Gateway Functions (BGF) in the Resource and Admission Control Subsystem (RACS);
Protocol specification".
[9] IETF RFC 4566 (2005): "SDP: Session Description Protocol".
[10] IETF RFC 2960: "Stream Control Transmission Protocol".
[11] IETF RFC 3309: "SCTP Checksum Change".
[12] ETSI TS 129 207: "Digital cellular telecommunications system (Phase 2+); Universal Mobile
Telecommunications System (UMTS); Policy control over Go interface (3GPP TS 29.207
Release 6)".
[13] ETSI ES 283 035: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Network Attachment Sub-System (NASS); e2 interface based
on the DIAMETER protocol".
[14] ETSI ES 283 026: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Resource and Admission Control; Protocol for QoS reservation
information exchange between the Service Policy Decision Function (SPDF) and the
Access-Resource and Admission Control Function (A-RACF) in the Resource and Protocol
specification".
[15] ETSI ES 283 034: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); Network Attachment Sub-System (NASS); e4 interface based
on the DIAMETER protocol".
[16] IETF RFC 3556: "Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control
Protocol (RTCP) Bandwidth".
[17] IETF RFC 3388: "Grouping of Media Lines in the Session Description Protocol (SDP)".
[18] IETF RFC 3524: "Mapping of Media Streams to Resource Reservation Flows".
[19] ETSI TS 129 214: "Universal Mobile Telecommunications System (UMTS); Policy and charging
control over Rx reference point (3GPP TS 29.214 Release 7)".
[20] ETSI TS 183 063: "Telecommunications and Internet converged Services and Protocols for
Advanced Networking (TISPAN); IMS-based IPTV stage 3 specification".
[21] ETSI TS 183 048: "Telecommunications and Internet Converged Services and Protocols for
Advanced Networking (TISPAN); Resource and Admission Control System (RACS); Protocol
Signalling flows specification; RACS Stage 3".
[22] IETF RFC 3264: "An Offer/Answer Model with Session Description Protocol (SDP)".
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.
Not applicable.
ETSI

---------------------- Page: 7 ----------------------
8 ETSI TS 183 017 V2.3.1 (2008-09)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Application Function (AF): element offering applications that require the control of IP bearer resources
NOTE: The AF is capable of communicating with the SPDF to transfer dynamic QoS-related application
information. One example of an AF is the P-CSCF of the IMS.
AF session: established by an application level signalling protocol offered by the AF that requires a session set-up with
explicit session description before the use of the service
NOTE: One example of an application session is an IMS session.
AF session signalling: used to control the AF session
NOTE: One example of AF session signalling is SIP/SDP.
Attribute-Value Pair (AVP): Information Element in a Diameter message
NOTE: See RFC 3588 [3].
hard-state reservation: type of reservation whereby the requested resources are reserved without time limit
NOTE: Hard-state reservations are terminated when the DIAMETER session is terminated.
soft-state reservation: type of reservation whereby the requested resources are reserved for a finite amount of time
NOTE: Soft-state reservations are terminated if the DIAMETER session is terminated.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AAA AA-Answer
AAR AA-Request
AF Application Function
A-RACF Access-RACF
ASA Abort-Session-Answer
ASR Abort-Session-Request
AVP Attribute-Value Pair
BGF Border Gateway Function
CEA Capabilities-Exchange-Answer
CER Capabilities-Exchange-Request
GPRS General Packet Radio Service
IANA Internet Assigned Numbers Authority
IMS IP Multimedia Subsystem
IP Internet Protocol
IP-CAN IP Connectivity Access Network
IP-CAN IP-Connectivity Access Network
NAPT Network Address and Port Translation
NASREQ Network Access Server Application
P-CSCF Proxy - Call Session Control Function
PDF Policy Decision Function
QoS Quality of Service
RAA Re-Auth-Answer
RACF Resource and Admission Control Function
RACS Resource and Admission Control Subsystem
RAR Re-Auth-Request
ETSI

---------------------- Page: 8 ----------------------
9 ETSI TS 183 017 V2.3.1 (2008-09)
RTCP Realtime Transport Control Protocol
RTP Realtime Transport Protocol
SCTP Stream Control Transport Protocol
SDI Session Description Information
SDP Session Description Protocol
SIP Session Initiation Protocol
SPDF Service-based Policy Decision Function
STA Session-Termination-Answer
STR Session-Termination-Request
UDP User Datagram Protocol
UE User Equipment
4 Gq' interface
4.1 Overview
The Gq' interface is used for the service-based policy set-up information exchange between the SPDF and the AF,
e.g. the P-CSCF. As defined in the stage 2 specification (ES 282 003 [2]), this information is used by the SPDF for the
Service Based Policy decisions.
The Gq' interface may be an intra- or inter-domain interface. One SPDF instance shall be able to serve more than one
AF instance and one given AF instance may interact with a number of SPDF instances, although on an AF session
basis, it shall interact with only a single SPDF instance.
4.2 Gq' reference model
The Gq' interface is defined between the AF and the SPDF. Within the present release, the Gq' interface is used for
requesting transport plane resources and admission control for fixed broadband access networks (e.g. xDSL).
NOTE: When supporting a GPRS IP-CAN, the AF will apply the procedures specified in TS 129 209 [4].
Scope of the present
Gq
specification AFAF
TS.129.209
Gq'
’
Rq PDF
SPSPDDFF
AA--  RA RACCFF
Ia
BGF

Figure 4.2.1: Gq' reference model
ETSI

---------------------- Page: 9 ----------------------
10 ETSI TS 183 017 V2.3.1 (2008-09)
4.3 Functional elements and capabilities
4.3.1 Service-based Policy Decision Function (SPDF)
The SPDF is a functional element that coordinates the resource reservation requests received from the AF. The SPDF
makes policy decisions using policy rules and forwards the session and
...