ETSI TS 129 208-2007 Digital cellular telecommunications system (Phase 2+) Universal Mobile Telecommunications System (UMTS) End-to-end Quality of Service (QoS) signalling flows (V《.pdf

1、 ETSI TS 129 208 V6.7.0 (2007-06)Technical Specification Digital cellular telecommunications system (Phase 2+);Universal Mobile Telecommunications System (UMTS);End-to-end Quality of Service (QoS) signalling flows (3GPP TS 29.208 version 6.7.0 Release 6)GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI E

2、TSI TS 129 208 V6.7.0 (2007-06) 1 3GPP TS 29.208 version 6.7.0 Release 6 Reference RTS/TSGC-0329208v670 Keywords GSM, UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucr

3、atif enregistre la Sous-Prfecture 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

4、 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 th

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6、.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 2007. All rights reserved. DECTTM, PLUGTES

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8、rtners. ETSI ETSI TS 129 208 V6.7.0 (2007-06) 2 3GPP TS 29.208 version 6.7.0 Release 6 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 ET

9、SI 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:/we

10、bapp.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 bec

11、ome, essential to the present document. 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 b

12、e 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. ETSI ETSI TS 129 208 V6.7.0 (2007-06) 3 3GPP TS 29.208 version 6.7.0 Release 6 Contents Intellectual P

13、roperty Rights2 Foreword.2 Foreword.5 1 Scope 6 2 References 6 3 Definitions and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .7 4 Authorize QoS resources7 4.1 Authorize QoS resources at AF session establishment.7 4.2 Authorize QoS resources at AF session modification 9 5 Resource reservation

14、flow with Service-based local policy.9 6 Other flows over Go and Gq interfaces11 6.1 Approval of QoS commit .11 6.2 Removal of QoS commit12 6.3 Revoke authorization for GPRS and IP resources12 6.3.1 AF initiated session release.13 6.4 Indication of PDP Context Release 14 6.5 Modification of PDP Cont

15、ext.18 6.5.1 Authorization of PDP Context Modification 18 6.5.2 Indication of PDP Context Modification 19 6.6 Session modification initiated SBLP authorization decision21 7 QoS parameter mapping.22 7.0 Overview of QoS parameter mapping22 7.0.1 QoS parameter mapping for IMS23 7.1 QoS parameter mappin

16、g between AF and GPRS .23 7.1.0 SDP parameters to service information mapping in AF .23 7.1.1 Gq service information to Authorized IP QoS parameters mapping in PDF 27 7.1.2 Authorized IP QoS parameters to Authorized UMTS QoS parameters mapping in GGSN .30 7.1.3 Comparing UMTS QoS Parameters against

17、the Authorized UMTS QoS parameters in GGSN 30 7.2 QoS parameter mapping in the UE.31 7.2.1 SDP to UMTS QoS parameter mapping in UE.33 7.2.2 SDP parameters to Authorized UMTS QoS parameters mapping in UE33 Annex A (informative): Examples of deriving the Maximum Authorized parameters from the SDP para

18、meters .37 A.1 Example 1.37 A.2 Example 2.39 Annex B (normative): Signalling Flows for IMS.41 B.1 Authorize QoS resources41 B.1.1 Authorize QoS resources at originating P-CSCF and PDF at IMS session establishment .41 B.1.2 Authorize QoS resources at terminating P-CSCF and PDF at IMS session establis

19、hment 42 B.1.3 Authorize QoS resources at IMS session modification 44 B.2 Resource reservation flow with Service-based local policy.45 B.3 Approval of QoS commit .45 B.4 Removal of QoS commit46 B.4.1 Removal of QoS commit at Media on Hold .46 ETSI ETSI TS 129 208 V6.7.0 (2007-06) 4 3GPP TS 29.208 ve

20、rsion 6.7.0 Release 6 B.4.2 Removal of QoS commit at media component removal .47 B.5 Revoke authorization for GPRS and IP resources48 B.5.1 Mobile initiated session release / Network initiated session release.48 B.5.2 Media component removal .50 B.6 Indication of PDP Context Release52 B.7 Modificati

21、on of PDP Context.52 B.8 Session modification initiated SBLP authorization decision .52 Annex C (informative): Change history .53 History 54 ETSI ETSI TS 129 208 V6.7.0 (2007-06) 5 3GPP TS 29.208 version 6.7.0 Release 6 Foreword This Technical Specification has been produced by the 3rdGeneration Par

22、tnership 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 in

23、crease 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 enhancem

24、ents, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 129 208 V6.7.0 (2007-06) 6 3GPP TS 29.208 version 6.7.0 Release 6 1 Scope The present specification gives examples of QoS signalling flows for resource r

25、eservation to provide end-to-end QoS. The flows are used as bases of developing QoS related protocol descriptions for new and existing specifications. The present specification adds detailed flows of Service Based Local Policy (SBLP) procedures over the Go and Gq interfaces and their relationship wi

26、th the bearer level signalling flows over the Gn interface. The calls flows depicted in this Technical Specification represent usual cases, i.e. not all situations are covered. Detailed information provided in TS 29.207 7 shall be taken into consideration. The present specification also describes th

27、e mapping of QoS parameters among SDP, UMTS QoS parameters, and QoS authorization parameters. 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 publicatio

28、n and/or edition number or version number) 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 t

29、he latest version of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 24.228: “Signalling flows for the IP multimedia call control based on SIP and SDP; Stage 3“. 3 3GPP TS 24.229: “IP Multimedia Call Control Protocol based

30、on SIP and SDP; Stage 3“. 4 3GPP TS 23.060: “General Packet Radio Service (GPRS); Service description; Stage 2“. 5 3GPP TS 26.234: “End-to-end transparent streaming service; Protocols and codecs“. 6 3GPP TS 26.236: “Packet switched conversational multimedia applications; Transport protocols“. 7 3GPP

31、 TS 29.207: “Policy control over Go interface“. 8 3GPP TS 23.107: “Quality of Service (QoS) concept and architecture“. 9 IETF RFC 2327: “SDP: Session Description Protocol“. 10 IETF RFC 3556: “Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) Bandwidth“. 11 IETF R

32、FC 3264: “An Offer/Answer model with the Session Description Protocol (SDP)“. 12 3GPP TS 29. 209: “Policy control over Gq interface“. 13 IETF RFC 3388: “Grouping of Media Lines in the Session Description Protocol (SDP) “. 14 IETF RFC 3524: “Mapping of Media Streams to Resource Reservation Flows“. ET

33、SI ETSI TS 129 208 V6.7.0 (2007-06) 7 3GPP TS 29.208 version 6.7.0 Release 6 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 1 and in 3GPP TS 29.207 7 apply. 3.2 Abbreviations For the purposes of the present

34、document, the abbreviations given in 3GPP TR 21.905 1 and the following apply: AF Application Function COPS Common Open Policy Service protocol DEC COPS DECision message DRQ COPS Delete ReQuest state message IMS IP Multimedia CN Subsystem PDF Policy Decision Function REQ COPS REQuest messageRPT COPS

35、 RePorT state message SBLP Service Based Local Policy 4 Authorize QoS resources 4.1 Authorize QoS resources at AF session establishment This clause covers the Authorize QoS resources procedure to be used when an AF session is established. ETSI ETSI TS 129 208 V6.7.0 (2007-06) 8 3GPP TS 29.208 versio

36、n 6.7.0 Release 6 5. Diameter AAA 3. Diameter AAR AF PDF 2. Define connection info 4.Token generation and session authorization UE GGSN 1. Trigger 6. AF session signalling Legend: Mandatory Optional 1. The AF receives an internal or external trigger to set up a new AF session. 2. The AF may identify

37、 the connection information needed (e.g. IP address of the IP flow(s), port numbers to be used etc). 3. The AF requests the authorization token from the PDF by sending a Diameter AAR for a new Diameter session. The AF may instruct the PDF to request the full service information from the AF at resour

38、ce reservation. The AF may also forward the part of or the entire service information at this stage in order to define the QoS resource authorisation. 4. The PDF authorizes the possibly received service information. The PDF generates the Authorization Token. 5. An authorization token is sent to the

39、AF. 6. The Authorization token may be passed to the UE within AF session signalling. Figure 4.1: Authorize QoS resources at session establishment ETSI ETSI TS 129 208 V6.7.0 (2007-06) 9 3GPP TS 29.208 version 6.7.0 Release 6 4.2 Authorize QoS resources at AF session modification This clause covers t

40、he Authorize QoS resources procedure at AF session modification. 5. Diameter AAA 3. Diameter AAR AF PDF 2. Define connection info 4. session authorization 1. Trigger Legend: Mandatory 1. The AF receives an internal or external trigger to modify the service information for an existing AF session. 2.

41、The AF may identify the connection information needed (e.g. IP address of the IP flow(s), port numbers to be used etc). 3. The AF sends a Diameter AAR for an existing Diameter session and includes updated service information. 4. The PDF authorizes the received service information. The PDF may need t

42、o approve or remove the QoS commit (see Clauses 6.1 and 6.2, respectively) or perform a Session modification initiated SBLP authorization decision (see Clause 6.6) due to the updated service information. 5. The PDF answers with a Diameter AAA. Figure 4.2: Authorize QoS resources at AF session modifi

43、cation 5 Resource reservation flow with Service-based local policy This clause describes a resource reservation flow with service based local policy. The service based local policy is done via exchange of information through the Go and Gq interfaces. The Go and Gq interfaces allow the service based

44、local policy and QoS interworking information to be requested by the GGSN from a PDF and the AF. ETSI ETSI TS 129 208 V6.7.0 (2007-06) 103GPP TS 29.208 version 6.7.0 Release 6 12. PDP context activation resp. 13.Diameter RAR 6.Diameter RAA 5.Diameter RAR 10. COPS RPT 8. COPS DEC 4. COPS REQ 2. PDP c

45、ontext activation req UE GGSN PDF AF 1. Mapping of SDI parameters to UMTS QoS 9. Policy Enforcement 7. Authorize QoS resources 14.Diameter RAA Legend: Optional Mandatory SGSN 3. Create PDP context req 11. Create PDP context resp 1. The UE may use SDI or application specific settings in order to defi

46、ne the UMTS QoS parameter needed to request a PDP context. 2. The UE sends a PDP context activation request to the SGSN. The UE shall include binding information in the PDP context activation message to associate the PDP context bearer with policy information. 3. The SGSN carries out the procedures

47、identified in 3GPP TS 23.060 4 related to the PDP context activation and sends a Create PDP context request to the GGSN. 4. The GGSN receives the PDP context activation request with the binding information. The GGSN uses the authorisation token in order to localise the PDF. The GGSN sends a COPS REQ

48、 message to the PDF and includes the binding information. 5. A PDF generated authorization token enables the PDF to identify the authorisation status information. The PDF sends an authorisation request to that AF, if instructed by the AF in the initial authorisation request from the AF. 6. If step 5

49、 happens, the AF sends the service information to the PDF. 7. The PDF performs the authorization decision. 8. The decision taken by the PDF is returned via the COPS DEC message. The DEC message includes the policy information to be used by the GGSN in order to perform the policy-based admission control. 9. The GGSN enforces the PDF policy decision on the IP flows based on the received authorization information from the PDF for the media components carried by the PDP context. 10. The GGSN sends COPS RPT message back to the PDF an