ETSI TS 102 024-3-2003 Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 4 End-to-end Quality of Service in TIPHON Systems Part 3 Signalling and.pdf

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1、ETSI TS 102 024-3 V4.1.1 (2003-01) Technical Specificafion Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 4; End-to-end Quality of Service in TIPHON Systems; Part 3: Signalling and Control of end-to-end Quality of Service 2 ETSI TS 102 024-3 V4.1.1 (2003-01) Re

2、ference DTS/TI PHON-05003R4 Keywords IP, protocol, QoS, signalling, voice, VolP ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grass

3、e (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: http:lwmv.etsi .arq 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

4、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

5、 change of status. Information on the current status of this and other ETSI documents is available at ha p:/pa rta I. etsi I a rgltbistat uslstatus .as p If you find errors in the present document, send your comment to: Cori vriaht Notifica tion No part may be reproduced except as authorized by writ

6、ten permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2003. All rights reserved. DECTTM, PLUGTESTSTMand UMTSTMare Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo a

7、re Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI 3 ETSI TS 102 024-3 V4.1.1 (2003-01) Contents Intellectual Property Rights 6 Foreword . 6 1 Scope 7

8、 2 References 7 3 Definitions and abbreviations . 8 Definitions 8 3.1 3.2 Abbreviations . 8 4 End-to-end QoS Signalling functional requirements . 8 4.1 8 4.1.1 8 4.2 9 4.2.1 9 4.2.2 9 4.2.2.1 9 4.2.2.2 Invocation and operation . 9 4.2.3 Exceptional procedures . 10 4.2.3.1 Invocation and operation .

9、10 Interactions with other TIPHON service capabilities . 10 4.3 Registration service capabilities . 10 4.3.1 Terminal transport service registration 10 4.3.1.1 User service registration 10 4.3.1.2 4.3.2 Call connectivity service capabilities 10 Simple call establishment 10 4.3.2.1 Calling user ident

10、ity generation 10 4.3.2.2 Calling user identity conveyance 10 4.3.2.3 Calling user identity delivery 10 4.3.2.4 Call rejection . 11 4.3.2.5 4.3.2.6 Number portability 11 4.3.2.6.1 Number portability - All call query . 11 4.3.2.6.2 Number portability - Query on release 11 4.3.2.6.3 Number portability

11、 - Pivot routing (Drop back) 11 4.3.2.7 Emergency calls 11 4.3.2.7.1 Emergency Calling Service (ECS) 11 Authorized emergency priority calls . 11 4.3.2.7.2 4.3.2.8 Bearer connectivity . 11 Bearer creation . 11 4.3.2.8.1 Bearer negotiation . 11 4.3.2.8.2 Bearer re-negotiation . 11 4.3.2.8.3 4.3.2.8.4

12、Media path optimization 11 Event recording . 11 4.3.2.9 4.3.2.10 Third party authorization . 11 4.3.2.11 Overlap sending 12 4.4 Intenvorking considerations . 12 4.5 Overall behaviour . 12 5 Functional entity model and information flows . 14 Functional entity model 14 5.1 Description of model 14 5.1.

13、1 5.1.2 Description of functional entities 15 5.1.2.1 Calling User 15 5.1.2.2 Calling Users service agent, QFE 1 . 15 5.1.2.3 The originating QoS coordination function, QFE2 . 15 5.1.2.4 The terminating QoS coordination function, QFE3 15 5.1.2.5 The called users incoming call service agent, QFE4 15

14、. . . ETSI 4 ETSI TS 102 024-3 V4.1.1 (2003-01) 5 . 5 . 5 . 5 . 1.2.6 The QoS policy control function associated with the calling users service provider. QFES 15 1.2.7 The transport coordination function serving the calling user. QFE . 15 1.2.8 The transport coordination function serving the called

15、user. QFE7 16 1.2.9 An intervening QoS coordination function. QFE8 16 5.1.2.10 An intervening transport coordination function. QFE9 . 16 5.1.2.11 Called User 16 Information flows . 16 5.2 5.2.1 Definition of information flows 16 5.2.1.1 Relationship ra 16 5.2.1.1.1 OrigQoSEstab 16 5.2.1.2 Relationsh

16、ips rb, rc, rd and re . 17 5.2.1.2.1 17 5.2.1.3 18 5.2.1.3.1 18 5.2.1.4 18 5.2.1.4.1 18 5.2.1.5 19 5.2.1.5.1 19 5.2.1.5.2 19 5.2.1.5.3 19 5.2.3 20 5.2.3.1 20 5.2.4 Information flow sequences 20 5.2.4.1 Normal operation 21 5.2.4.2 Exceptional behaviour . 23 5.3 QoS Functional entity actions 28 5.3.1

17、Actions of QFE1 . 28 5.3.2 Actions of QFE2 . 28 5.3.3 Actions of QFE3 . 28 5.3.4 Actions of QFE4 . 29 5.3.5 Actions of QFES . 29 5.3.6 Actions of QFE . 29 5.3.7 Actions of QFE7 . 29 5.3.8 Actions of QFE8 . 29 5.3.9 Actions of QFE9 . 30 5.4 QoS Functional entity behaviour 30 5.4.1 Information flows s

18、pecified as ASN . 1 operations 30 5.4.3 Behaviour ofQFE2, QFE3 and QFE8 36 5.4.4 Behaviour ofQFE6, QFE7 and QFE9 43 5.4.5 Behaviour ofQFE4 . 46 5.4.6 Behaviour ofQFE5 . 49 5.5 Allocation of functional entities to domains . 50 5.2.2 Relationship of information flows to TIPHON simple call 20 5.4.2 Beh

19、aviour ofQFE1 . 33 Annex A (informative): Graphical representation of QFE allocation scenarios 51 Annex B (informative): Mappings of QoS meta-protocol to H.323 series protocols 55 B . 1 Introduction 55 B.2 OrigQoSEstab . 55 B.2.1 Additional H.225.0 ARQ settings for OrigQoSEstab . 56 B.3 QoSEstab 57

20、B.3.1 Additional H.225.0 ARQ settings 58 B.4 DestQoSEstab . 58 B.5 QoSPolicy . 59 B.6 TRMReserve, TRMConnect, TRMRelease . 59 B.7 Summary of mapping QoS meta-protocol to H.323 series . 60 ETSI 5 ETSI TS 102 024-3 V4.1.1 (2003-01) Annex C (informative): C . 1 Mappings of QoS meta-protocol to SIP and

21、associated protocols . 61 Introduction 61 C.2 OrigQoSEstab . 61 C.3 DestQoSEstab . 64 C.4 QoSPolicy . 64 TRMReserve, TRMConnect, TRMRelease . 65 Summary of mapping of QoS meta-protocol to SIP. SDP. RTP/AVP and COPS . 66 History 68 C.2 QoSEstab 63 C.5 C.6 Annex D (informative): Bibliography . 67 ETSI

22、 6 ETSI TS 102 024-3 V4.1.1 (2003-01) 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 E

23、TSI SR O00 314: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respect ofETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (5). All published ETSI deliverables shall include informati

24、on which directs the reader to the above source of information. Foreword This Technical Specification (TS) has been produced by ETSI Project Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON). The present document is part 3 of a multi-part deliverable covering the end-to-e

25、nd Quality of Service in TIPHON Systems, as identified below: TR 102 024-1: TS 102 024-2: TS 102 024-3: TS 102 024-4: TS 102 024-5: TR 102 024-6: “General aspects of Quality of Service (QoS)“; “Definition of Speech Quality of Service (QoS) Classes“; “Signalling and Control of end-to-end Quality of S

26、ervice (QoS) in a multi-media environment“; “Quality of Service Management“; “Quality of Service (QoS) measurement methodologies“; “Actual measurements of network and terminal characteristics and Performance parameters in TIPHON networks and their influence on voice quality“; “Design Guide for eleme

27、nts of a TIPHON connection from an end-to-end speech transmission performance point of view“; TS 102 024-9: “Call performance Classification (Voice)“; TS 102 024-10: “QoS Requirements for TIPHON Terminals“. TR 102 024-7: ETSI 7 ETSI TS 102 024-3 V4.1.1 (2003-01) 1 Scope The present document, “TIPHON

28、 signalling and control of end-to-end Quality of Service (QoS)“, specifies procedures for the control of end-to-end QoS within and between domains. TS 101 882 (see bibliography) specifies the TIPHON meta-protocols and object definitions required by these control procedures. Additional annexes to the

29、 present document defie profiles for mapping a number of existing candidates protocols to the specified TIPHON meta-protocols. 2 Re fe re nces The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specif

30、ic (identified by date of publication andor 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. Referenced documents which are not found to be publicly available in the expected loca

31、tion might be found at htlu:/docbox.etsi.or:eerence. il ETSI TS 101 321: “Telecommunications and Internet Protocol; Harmonization Over Networks (TIPHON); Open Settlement Protocol (OSP) for Inter-Domain pricing, authorization, and usage exchange“. ETSI TS 10 1 329-3 : “Telecommunications and Internet

32、 Protocol Harmonization Over Networks (TIPHON) Release 3; End-to-end Quality of Service in TIPHON systems; Part 3: Signalling and control of end-to-end Quality of Service (QoS)“. ETSI TS 101 878: “Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 3; Service Capabi

33、lity Definition; Service Capabilities for a simple call“. ETSI TS 102 024-2: “Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 4; End-to-end Quality of Service in TIPHON Systems; Part 2: Definition of Speech Quality of Service (QoS) Classes“. ITU-T Recommendation

34、 E. 164 (1 997): “The international public telecommunication numbering 21 31 41 51 plan“. 61 ITU-T Recommendation Z. 100 (1996): “Specification and description language (SDL) with corrigendum 1 l. ITU-T Recommendation X.680: “Information technology; Open Systems Interconnection; Abstract Syntax Nota

35、tion One (ASN. 1): Specification of basic notation“. ITU-T Recommendation H.323 (2000): “Audiovisual and multimedia systems; Infiastructure of audiovisual services; Services and terminal equipment for audiovisual services; Packet-based multimedia communications systems“. ITU-T Recommendation H.225.0

36、 (2000): “Audiovisual and multimedia systems; Infrastructure of audiovisual services; Transmission multiplexing and synchronization; Call signalling protocols and media stream packetization for packet-based multimedia communication systems“. ITU-T Recommendation H.245 (200 1): “Audiovisual and multi

37、media systems; Infiastructure of audiovisual services - Communication procedures; Control protocol for multimedia communication“. 71 SI 91 lo1 IETF RFC 1890: “RTP Profile for Audio and Video Conferences with Minimal Control“. ETSI 8 ETSI TS 102 024-3 V4.1.1 (2003-01) 121 i31 i41 i51 IETF RFC 2327: “

38、SDP: Session Description Protocol“. IETF RFC 2748: “The COPS (Common Open Policy Service) Protocol“. IETF RFC 2806: “URLs for Telephone Calls“. IETF RFC 3261: “SIP: Session Initiation Protocol“. 3 Definitions and abbreviations 3.1 De fi nit ions For the purposes of the present document, the followin

39、g terms and definitions apply: name: unique identifier by which a user, access or terminal is known within a TIPHON system TIPHON system: system that complies with the mandatory requirements identified in the TIPHON specifications 3.2 Abbreviations For the purposes of the present document, the follo

40、wing abbreviations apply: ASN. 1 COPS OSP QFE QOS RSVP RTPIAVP SCN SDL SDP SIP Abstract Syntax Notation 1 Common Open Policy Service Open Settlement Protocol QoS Functional Entity Quality of Service resource Reservation Protocol Real-Time Protocol Audio-Video Profile Switched Circuit Network Specifi

41、cation and Description Language Session Description Protocol Session Initiation Protocol 4 4.1 End-to-end QoS Signalling functional requirements Description 4.1.1 General description End-to-end QoS Signalling is used within a TIPHON network to ensure that a caller is provided with an end-to-end conn

42、ection having at least the QoS class subscribed to or a lower QoS class if this is acceptable to the user. A QoS level may either be requested explicitly by the user on a call-by-call basis or may be predefined as part of the users subscription. Additionally, the caller may be able to take specific

43、actions if the QoS moves outside the accepted level during an established call. The user may use any of the following methods to request a specific end-to-end QoS at call establishment: 1) By subscription: The agreement between the user and the users service provider identifies the QoS level to be r

44、equested for any call. The QoS level may be fixed or variable based upon such parameters as time-of-day and call destination. This method requires no signalling between the user and the service provider at call setup time. ETSI 9 Option QoS class ETSI TS 102 024-3 V4.1.1 (2003-01) Value - Predefined

45、 by user and service provider (TIPHON or non-TIPHON class) - TIPHON Best - QoS Class 3 (see note 1) - TIPHON High - QoS Class 2H (see note 1) - TIPHON Medium - QoS Class 2M (see note 1) - TIPHON Acceptable - QoS Class 2A (see note 1) - TIPHON Best effort - QoS Class 1 (see note 1) - Non-TIPHON QoS C

46、lass (see note 2) 2) By the use of a standardized TIPHON QoS Class: The user indicates at each call establishment which of the TIPHON QoS Classes (standardized in TS 102 024-2 4) is to be requested for the call. The TIPHON QoS Classes are identified as: - Class 1 Best effort; - Class 2A Acceptable;

47、- Class2M Medium; - Class2H High; - Class 3 Best (broadband); By the use of a non-standardized QoS Class: The user indicates at each call establishment which non-standardized QoS class is to be requested for the call. The QoS class may represent any combination of QoS parameters previously agreed be

48、tween the user and the service provider. 3) 4.2 Procedures 4.2.1 Provision and withdrawal End-to-end QoS Signalling shall be provided on a per-name, per application basis to all subscribers to the simple call within a TIPHON system. When establishing a call, a user shall be able to select at least o

49、ne of the options identified in table 1. Table 1: QoS option 4.2.2 Normal procedures 4.2.2.1 Activation, deactivation and interrogation QoS Signalling shall be permanently activated. 4.2.2.2 Invocation and operation When establishing a simple call, the calling user (or an agent within the users network) may request a TIPHON standardized QoS class or a non-standardized QoS class, to be applied to the call in order to achieve a required end-to-end QoS. If the end-to-end QoS requested by the calling user is available, communication using that QoS shall be est