1、 ETSI TR 102 805-1 V1.1.1 (2009-11)Technical Report User Group;End-to-end QoS management at the Network Interfaces;Part 1: Users E2E QoS -Analysis of the NGN interfaces (user case)ETSI ETSI TR 102 805-1 V1.1.1 (2009-11)2Reference DTR/USER-00029-1 Keywords control, interface, interworking, QoS, signa
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8、 owned by the GSM Association. ETSI ETSI TR 102 805-1 V1.1.1 (2009-11)3Contents Intellectual Property Rights 4g3Foreword . 4g3Introduction 4g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviatio
9、ns . 8g34 User QoS requirements information . 10g34.1 User case description 10g34.2 User QoS 13g34.2.1 QoS assessment 13g34.2.2 Application to the User case . 13g35 Identification of InterWorking unit (IWU) . 15g35.1 Scenario 1: User mobility in mobile network . 16g35.2 Scenario 2: User mobility bet
10、ween mobile and fixed network, and service mobility 17g35.3 Scenario 3: Terminal mobility in mobile network 18g35.4 QoS framework in 3GPP and ETSI TISPAN . 19g35.4.1 QoS framework in ETSI TISPAN 19g35.4.2 QoS framework in 3GPP 20g36 QoS and E2E user-centric session 21g36.1 Sequence diagram in ETSI T
11、ISPAN based architecture 21g36.2 Sequence diagram in 3GPP based architecture 25g37 Conclusion 26g3Annex A: Mapping of services and QoS requirements . 27g3A.1 ITU-T Recommendation Y.1541 QoS class . 32g3A.2 UMTS Classes of Service (CoS) 32g3A.2.1 Conversational class . 33g3A.2.2 Streaming class . 33g
12、3A.2.3 Interactive class 33g3A.2.4 Background class 34g3A.2.5 Summary and QoS Information processing 34g3A.3 ITU-T Recommendation G.1010 QoS categories 34g3A.3.1 Key parameters impacting the user 35g3A.3.1.1 Delay . 35g3A.3.1.2 Delay variation 35g3A.3.1.3 Information loss 35g3A.3.2 Application . 35g
13、3A.4 Per Hop Behaviour parameters (DIFFSERV) 36g3A.4.1 Assured Forwarding . 36g3A.4.2 Best Effort 36g3A.4.3 Expedited Forwarding 36g3A.5 QoS criteria depending classes (INTRADIFF) 37g3Annex B: Bibliography 38g3History 39g3ETSI ETSI TR 102 805-1 V1.1.1 (2009-11)4Intellectual Property Rights IPRs esse
14、ntial 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 potentia
15、lly 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
16、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 Report (TR) has been produced by ETSI User Group (USER). The
17、present document is part 1 of a multi-part deliverable covering the End-to-end QoS management at the Network Interfaces, as identified below: Part 1: “Users E2E QoS - Analysis of the NGN interfaces (user case)“; Part 2: “Control and management planes solution - QoS continuity“; Part 3: “QoS informat
18、ional structure“. Introduction In all parts of this multi-part deliverable, the Quality of Service (QoS) should be seen from the end-user standpoint. This means that the QoS assessment should be performed with regards to the users requirements. Telecommunication world evolves and is now user centric
19、 in opposition to system centric (behaviours are constrained by the system) and network centric (behaviours are constrained by the network). User-centric requirements are expressed through user-related information, such as QoS parameters and end-users preferences. The QoS commitments of the related
20、providers should match that of the end-users requirements and can be defined in his contract as unilateral commitments or with a Service Level Agreement negotiated with the customer (generally corporate end-user). As networks are evolving towards NGN (Next Generation Network), the network environmen
21、t is becoming more and more complex. Heterogeneity and mobility are two specific characteristics in NGN that take into account end-user terminals, access networks, core networks and services. Mobility allows end-users to communicate regardless of location, device used, access mode or network across
22、multiple spatial domains. Figure 1: NGN context ETSI ETSI TR 102 805-1 V1.1.1 (2009-11)5The end-user wishes to choose any terminal or any access as a mean to use any service in a heterogeneous environment. Meanwhile, the end-user expects to have a continuous comprehensive service throughout the whol
23、e session while moving (terminal mobility) or changing terminal (user mobility). During this session, service connectivity is considered as a composition of elements in each layer (User, Terminal, Network and Service). The solution today is located at the intersection of the three domains defined in
24、 i.9: User-centric, mobility and heterogeneity as shown in figure 1. As networks become more and more complex and new services emerge continuously, the requirement for an end-to-end (E2E) QoS for the end-user is growing. Taking all the above into consideration, the goal is now to identify at which p
25、oint end-users could and should enter their choices and preferences, etc. in the future network. These interactions have been taken into consideration in the user case. That is why in clause 4, all the scenarios representing and concerning the NGN context are identified as well as the QoS aspects fr
26、om the end-users viewpoint with a particular attention to the sensitivity to QoS criteria of the services used. In clause 5, the components, which play a key role in the interactions with the end-users, are delineated and identified. The functional procedures of the scenarios are described in order
27、to define the interworking unit such as AF, RACS, PCRF, and GGSN. The transfer of the QoS information between networks, included in signalling or managing messages, is analyzed in clause 6. In clause 7, the conclusion introduces in TR 102 805-2 i.3. ETSI ETSI TR 102 805-1 V1.1.1 (2009-11)61 Scope Th
28、e present document provides an analysis of the NGN interfaces by using a user case designed to show how the QoS could be handled in the NGN context to ensure end-to-end QoS from the end-users viewpoint. 2 References References are either specific (identified by date of publication and/or edition num
29、ber 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 referen
30、ced 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 ti
31、me 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 re
32、ferenced document (including any amendments) applies. Not applicable. 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
33、of the referenced document (including any amendments) applies. i.1 ITU-T Recommendation G.1010 (11/2001): “End-user multimedia QoS categories“. i.2 ITU-T Recommendation Y.1541 (02/2006): “Network performance objectives for IP-based services“. i.3 ETSI TR 102 805-2 (V1.1.1): “User Group; End-to-end Q
34、oS management at the Network Interfaces; Part 2: Control and management planes solution - QoS continuity“. i.4 ETSI EG 202 009-1: “User Group; Quality of Telecom Services; Part 1: Methodology for identification of parameters relevant to the Users“. i.5 ETSI TS 102 464 (V1.1.1): “Satellite Earth Stat
35、ions and Systems (SES); Broadband Satellite Multimedia (BSM); Interworking with DiffServ Qos“. i.6 ETSI TS 123 107 (2009-01): “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Quality of Service (QoS) concept and architecture (3GPP TS 23.
36、107 version 8.0.0 Release 8)“. ETSI ETSI TR 102 805-1 V1.1.1 (2009-11)7i.7 ETSI TS 129 207 (2005-09): “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS);Policy control over Go interface (3GPP TS 29.207 version 6.5.0 Release 6)“. i.8 ETSI TS 101
37、329-2 (V2.1.3): “Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) Release 3;End-to-end Quality of Service in TIPHON systems; Part 2: Definition of speech Quality of Service (QoS) classes“. i.9 ETSI STF 360 report (January 2009): “Analysis of current E2E QoS standardizati
38、on state“. i.10 IETF RFC 1633: “Integrated Services in the Internet Architecture: an Overview“. i.11 IETF RFC 2474: “Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers“. i.12 IETF RFC 2475: “Architecture for Differentiated Services“. i.13 ITU Study Group 19 - Con
39、tribution 25 (2007): “Considerations of horizontal handover and vertical handover“. i.14 ETSI ES 282 003: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Resource and Admission Control Sub-System (RACS): Functional Architecture“. i.15 ETSI ES 283 0
40、03: “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“. i.16 IETF RFC 854: “Telnet Protoc
41、ol Specification“. i.17 ETSI TR 102 805-3: “User Group; End-to-end QoS management at the Network Interfaces; Part 3: QoS informational structure“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: AmbientGrid: informa
42、tion inference (AmbientGrid) based on the profiles matching, to structure with grid covering the needed end-user centric environment class of service: way of traffic management in the network by grouping similar types of traffic and treating them as its own level of service priority DiffServ network
43、s: classify packets into one of a small number of aggregated flows or classes, based on the DiffServ codepoint (DSCP) in the packets IP header NOTE: This is known as behaviour aggregate (BA) classification (RFC 2475 i.12). At each DiffServ router, packets are subjected to a per-hop behaviour (PHB),
44、which is invoked by the DSCP (RFC 2474 i.11). equipment: any material with its related OS, through its CPU and memory, which contributes to the end-to-end QoS horizontal handover: handover within homogeneous access networks NOTE 1: Generally it is referred to as the Intra-AN handover. NOTE 2: ITU St
45、udy Group 19 - Contribution 25: Considerations of horizontal handover and vertical handover, 2007 i.13. infosphere: decisional knowledge base managing, in the real time, all the personalization and ambient environment information ETSI ETSI TR 102 805-1 V1.1.1 (2009-11)8IntServ (integrated services a
46、rchitecture): set of extensions to the traditional best effort model of the Internet with the goal of allowing end-to-end QOS to be provided to applications NOTE 1: One of the key components of the architecture is a set of service; the current set of services consists of the controlled load and guar
47、anteed services. The architecture assumes that some explicit setup mechanism is used to convey information to routers so that they can provide requested services to flows that require them. While RSVP is the most widely known example of such a setup mechanism, the IntServ architecture is designed to
48、 accommodate other mechanisms. NOTE 2: See RFC 1633 i.10. multi-homing: end-users services can be provided by more than one service or network provider network mobility: networks ability, where a set of fixed or mobile nodes are networked to each other, to change, as a unit, its point of attachment
49、to the corresponding network upon the networks movement itself Per-Hop Behaviour (PHB): externally observable forwarding treatment applied at a differentiated services-compliant node to a behaviour aggregate NOTE: See TS 102 464 i.5. policy control: adaptation and configuration of QoS according to particular goals dependent of user, network operator and service provider QoS Classification: definition of class priority for QoS by describing traffic condition or performance parameters QoS handover: ensures
