1、 ETSI TS 102 250-7 V1.1.1 (2009-10)Technical Specification Speech and multimedia Transmission Quality (STQ);QoS aspects for popular services in GSM and 3G networks;Part 7: Network based Quality of Service measurementsETSI ETSI TS 102 250-7 V1.1.1 (2009-10)2Reference DTS/STQ-00127m Keywords 3G, GSM,
2、network, QoS, service, speech 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 lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies
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6、s authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2009. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
7、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. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Tr
8、ade Marks registered and owned by the GSM Association. ETSI ETSI TS 102 250-7 V1.1.1 (2009-10)3Contents Intellectual Property Rights 4g3Foreword . 4g3Introduction 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions and abbreviations . 7g33.1 Defini
9、tions 7g33.2 Abbreviations . 7g34 Network Measurement Basics 8g34.1 Point of Control and Observation (PCO) . 8g34.2 Point of Recording (POR) 8g35 Measuring QoS Parameters in the Network . 8g35.1 General Overview. 8g35.2 Service Accessibility QoS Parameters . 9g35.3 Service Retainability QoS Paramete
10、rs 9g35.4 Service Integrity QoS Parameters 9g35.4.1 Media Quality Parameters 10g35.4.2 Response Time Parameters . 10g35.4.3 Data Rate Parameters 10g36 Comparing Network and End-point Test Measurements . 10g3Annex A (informative): The concept of QoE reporting 12g3Annex B (informative): Examples of Ne
11、twork Based QoS Measurements . 13g3B.1 Accessability and Retainability Parameters . 13g3B.2 Media Quality Parameters 14g3B.3 Response Time Parameters 14g3B.4 Data Rate Parameters . 15g3Annex C (informative): 3GPP SA5 “UE Management“ . 17g3Annex D (informative): Bibliography . 18g3History 19g3ETSI ET
12、SI TS 102 250-7 V1.1.1 (2009-10)4Intellectual 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 S
13、R 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
14、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
15、Technical Specification (TS) has been produced by ETSI Technical Committee Speech and multimedia Transmission Quality (STQ). The present document is part 7 of a multi-part deliverable covering the QoS aspects for popular services in GSM and 3G networks, as identified below: Part 1: “Identification o
16、f Quality of Service criteria“; Part 2: “Definition of Quality of Service parameters and their computation“; Part 3: “Typical procedures for Quality of Service measurement equipment“; Part 4: “Requirements for Quality of Service measurement equipment“; Part 5: “Definition of typical measurement prof
17、iles“; Part 6: “Post processing and statistical methods“; Part 7: “Network based Quality of Service measurements“. Part 1 identifies QoS aspects for popular services in GSM and 3G networks. For each service chosen QoS indicators are listed. They are considered to be suitable for the quantitative cha
18、racterization of the dominant technical QoS aspects as experienced from the end-customer perspective. Part 2 defines QoS parameters and their computation for popular services in GSM and 3G networks. The technical QoS indicators, listed in part 1, are the basis for the parameter set chosen. The param
19、eter definition is split into three parts: the abstract definition which contains a generic description of the parameter, the abstract equation and the respective trigger points. Only measurement methods not dependent on any infrastructure provided are described in the present document. The harmoniz
20、ed definitions given in the present document are considered as the prerequisites for comparison of QoS measurements and measurement results. Part 3 describes typical procedures used for QoS measurements over GSM and 3G networks, along with settings and parameters for such measurements. Part 4 define
21、s the minimum requirements of QoS measurement equipment for GSM and 3G networks in the way that the values and trigger points needed to compute the QoS parameter as defined in part 2 can be measured following the procedures defined in part 3. Test equipment fulfilling the specified minimum requireme
22、nts will allow to perform the proposed measurements in a reliable and reproducible way. Part 5 specifies test profiles which are required to enable benchmarking of different GSM or 3G networks both within and outside national boundaries. These profiles are necessary for comparing “like-for-like“ per
23、formance in case that a specific set of tests is carried out by different customers. ETSI ETSI TS 102 250-7 V1.1.1 (2009-10)5Part 6 describes procedures to be used for statistical calculations in the field of QoS measurement of GSM and 3G networks using probing systems. Part 7 describes how Quality
24、of Service measurements should be done inside the network without direct access to the end point terminal. Introduction Measurements of service performance can be done either with an end-point test measurement tool, ether stationary or mobile drive test, or inside the network itself. The measurement
25、s should always be done from an end-user perspective, independent of the measurement point. Obviously a measurement done inside the network might not give exactly the same result as a measurement done in the end-point with a test tool. However, also the network measurement can give valuable informat
26、ion about service performance as the end-user perceives it. It is also possible to take more samples of the service performance with a network based measurement than with an end-point test tool. The service performance measurements discussed presented in the present document shall all be based on st
27、andardized protocols and interfaces. The quality of service parameters in TS 102 250-2 1 are initially specified for an end-point test tool measurement scenario. However, the parameters can be reused for network based measurements with some limitations and minor changes. ETSI ETSI TS 102 250-7 V1.1.
28、1 (2009-10)61 Scope The present document specifies how the quality of service parameters, listed in TS 102 250-2 1, should be used for measurements done inside a network, in contrary to measurements done in the end-point with a test tool. A test tool can be either stationary or a drive test tool. Th
29、e measurements of the QoS parameters according to the present document should be done using standardized interfaces and protocols. This is done to ensure that all measurements in a multi-vendor network can be compared. 2 References References are either specific (identified by date of publication an
30、d/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 change
31、s 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
32、 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 e
33、dition of the referenced document (including any amendments) applies. 1 ETSI TS 102 250-2: “Speech and multimedia Transmission Quality (STQ); QoS aspects for popular services in GSM and 3G networks; Part 2: Definition of Quality of Service parameters and their computation“. 2 Void. 3 ETSI TS 126 234
34、: “Universal Mobile Telecommunications System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs (3GPP TS 26.234)“. 4 ETSI TS 126 346: “Universal Mobile Telecommunications System (UMTS); LTE; Multimedia Broadcast/Multicast Service (MBMS); Protocols and
35、codecs (3GPP TS 26.346)“. 5 ETSI TS 126 114: “Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction (3GPP TS 26.114)“. 6 ITU-T Recommendation P.564: “Conformance testing for voice over IP transmission quality asses
36、sment models“. 7 ITU-T Recommendation P.862.1: “Mapping function for transforming P.862 raw result scores to MOS-LQO“. 8 Void. ETSI ETSI TS 102 250-7 V1.1.1 (2009-10)79 ETSI TS 124 008: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Mo
37、bile radio interface Layer 3 specification; Core network protocols; Stage 3 (3GPP TS 24.008 Release 8)“. 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-speci
38、fic references, the latest version of the referenced document (including any amendments) applies. Not applicable. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: drive test tool: end-point test tool which is designe
39、d to be moved around, i.e. by walking or driving a car end-point test tool: typically especially designed mobile which uses active test calls to collect measurements stationary tool: end-point test tool which is installed in a fixed location 3.2 Abbreviations For the purposes of the present document
40、, the following abbreviations apply: 3G 3rdGeneration 3GPP Third Generation Partnership Project ACK Acknowledgement FTP File Transfer Protocol Gn Interface between GSN nodes GPRS General Packet Radio Service GSM Global System for Mobile communications GSN GPRS Support Node Iub Interface between RNC
41、and Node B MO Mobile-Originated MT Mobile-TerminatedPCO Point of Control and Observation PoC Push to talk over Cellular POR Point of Recording QoE Quality of Experience QoS Quality of Service RNC Radio Network Controller RRC Radio Resource Control SGSN Serving GPRS Support Node TCP Transmission Cont
42、rol Protocol UE User EquipmentETSI ETSI TS 102 250-7 V1.1.1 (2009-10)84 Network Measurement Basics 4.1 Point of Control and Observation (PCO) The Point of Control and Observation (from now on called “point of observation“ or PCO) is the location where the measurement is actually performed. The locat
43、ion can be either inside the network or in the end-point. The measurements should be done using standardized interfaces and protocols. Possible points of observation for QoS parameters covered in the present document are: Inside nodes in the network (RNC, base station, switch, etc.) Observations in
44、the terminal: - End-point test tool; or - Measurements that are reported back from the terminal to the network L1RLC/MAC RRC Node B Network node Network node PCO in mobile (can be multiple PCO) PCO in network node or at network node interface Higher layer POR in a network node and data is reported f
45、rom a PCO in a terminal Figure 1: Points of Observation, Points of Recording and Measurement Reporting 4.2 Point of Recording (POR) The point of recording (POR) is where the QoS parameters are recorded. The POR can be the same as the PCO or another point inside the terminal or the network. If the PC
46、O and the POR are not the same, the measurement data must be reported from the PCO to the POR. Examples of such reporting are described in annex A. 5 Measuring QoS Parameters in the Network 5.1 General Overview The quality of service measurements should be done as much as possible in the same way in
47、side the network as they are done in the end-point with a test tool. Many types of measurements can be done with the same trigger points (for instance, the reception of a certain protocol message) independent of the point of measurement, but the measurement result might differ slightly depending on
48、where in the call or transmission chain the PCO is located. ETSI ETSI TS 102 250-7 V1.1.1 (2009-10)95.2 Service Accessibility QoS Parameters Accessibility QoS parameters reflects the ability to initiate or intentionally terminate a connection or a service. The parameters can be divided into the foll
49、owing groups: Failure parameters: Reflects the outcome of attempts to initiate a connection or a service. For mobile-originated (MO) cases the network might sometimes be unaware of some of the attempts, and network-based parameters can be expected to give a slightly more positive view of the network condition, as compared to the corresponding endpoint-test parameters. For mobile-terminated (MT) initiation attempts the network is normally fully aware of these, and network-based parameters should therefore correspond well to the same parameters a
