1、 ETSI TS 186 008-4 V2.1.1 (2015-05) Core Network and Interoperability Testing (INT); IMS/NGN Performance Benchmark; Part 4: Reference Load network quality parameters TECHNICAL SPECIFICATION ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)2 Reference RTS/INT-00021-4 Keywords IMS, performance, service ETSI 650
2、 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 The present document can be downloaded from: http:/www.
3、etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived differe
4、nce in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (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 chang
5、e 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: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Co
6、pyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. T
7、he copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of
8、 ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)3 Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g31 Scop
9、e 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 6g33 Abbreviations . 6g34 Metrics and design objectives 6g34.1 Delay probability 6g34.2 Loads definitions 6g34.3 Parameter requirements 7g34.4 Call processing performance objectives . 25g34.4.1 Premature release 25g34.4.2
10、Release failure 25g34.4.3 Incorrect charging or accounting 25g34.4.4 Misrouting. 25g34.4.5 No tone . 25g34.4.6 Other failures 25g34.5 Transmission performance . 25g34.5.1 64 kbit/s switched connections . 25g34.6 Slip rate 25g34.6.1 Normal conditions 25g34.6.2 Temporary loss of timing control . 26g34
11、.6.3 Abnormal conditions at the exchange input 26g3Annex A (informative): Bibliography . 27g3History 28g3ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to
12、 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. La
13、test updates are available on the ETSI Web server (http:/ipr.etsi.org). 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 W
14、eb 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 Core Network and Interoperability Testing (INT). The present document is part 4 of a multi-part deliverable covering the IMS/NGN
15、 Performance Benchmark, as identified below: Part 1: “Core Concepts“; Part 2: “Subsystem Configurations and Benchmarks“; Part 3: “Traffic Sets and Traffic Profiles“; Part 4: “Reference Load network quality parameters“. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “
16、should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETS
17、I TS 186 008-4 V2.1.1 (2015-05)5 1 Scope The present document contains the performance benchmark requirements applicable to IMS/PES/VoLTE exchange implementations based on Recommendation ITU-T Q.543 1 and ETSI TS 101 563 10. The definitions of IMS/PES/VoLTE design objectives are based on “best pract
18、ice“ performance of legacy PSTN/ISDN signalling. The values contained in the present document are “best practice“ performance values measured on IMS and PES implementations. The ISDN VGW values are based on carrier grade implementations. 2 References 2.1 Normative references References are either sp
19、ecific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are no
20、t 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 time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for
21、the application of the present document. 1 Recommendation ITU-T Q.543: “Digital exchange performance design objectives“. 2 ETSI TS 183 036: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); ISDN/SIP interworking; Protocol specification“. 3 ETSI TS 12
22、4 229: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP TS 24.229)“. 4 ETSI TS 183 043: “Telecommunicati
23、ons and Internet converged Services and Protocols for Advanced Networking (TISPAN); IMS-based PSTN/ISDN Emulation; Stage 3 specification“. 5 Recommendation ITU-T Q.541 (1993): “Digital exchange design objectives - General“. 6 Recommendation ITU-T G.812 (2004): “Timing requirements of slave clocks su
24、itable for use as node clocks in synchronization networks“. 7 Recommendation ITU-T G.823: “The control of jitter and wander within digital networks which are based on the 2048 kbit/s hierarchy“. 8 Recommendation ITU-T G.826 (12/2002): “End-to-end error performance parameters and objectives for inter
25、national, constant bit-rate digital paths and connections“. 9 ETSI TS 102 928: “Speech and multimedia Transmission Quality (STQ); End-to-End Transmission Planning Requirements for Real Time Services in an NGN context“. 10 ETSI TS 101 563: “Speech and multimedia Transmission Quality (STQ); IMS/PES/Vo
26、LTE exchange performance requirements“. ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)6 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-spe
27、cific references, the latest version of the reference document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the ap
28、plication of the present document but they assist the user with regard to a particular subject area. Not applicable. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: ACK Acknowledgment AGCF Access Gateway Control Function CSCF Call Session Control Function
29、 ECM EPS Connection Management EPS Evolved Packet System IAD Integrated Access DeviceIMS IP Multimedia Subsystem ISDN Integrated Service Digital Network ITU-T ITU Telecommunication Standardization Sector MGW Media GateWay MME Mobility Management Entity MSAN Multi Service Access Node NGN New Generati
30、on Network P-CSCF Proxy Call Server Control Function PES PSTN/ISDN Emulation SubsystemPSTN Public Switched Telephone Network QCI QoS Class Identifier RTP Real Time Protocol SBC Session Border Control SDP Session Description Protocol S-GW Signalling Gateway SIP Session Initiation Protocol TIE Time In
31、terval Error UE User Equipment VGW Voice GatewayVoLTE Voice over LTE 4 Metrics and design objectives 4.1 Delay probability This clause defines delay parameters related to ISDN/PSTN, IMS and VoLTE. The values are based on the values in Recommendation ITU-T Q.543 1 and ETSI TS 101 563 10. 4.2 Loads de
32、finitions The ISDN/PSTN, IMS and VoLTE reference loads definitions and values described in table 1 to table 9 are the reference loads definitions described in Recommendation ITU-T Q.543 1 and in ETSI TS 101 563 10. The derived ISDN procedures are based on the ISDN/SIP interworking 2 procedures, the
33、derived PES procedures are based on the IMS/PES Emulation specification 4 and the derived SIP procedures are based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP) 3. ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)7 Figure 1: IMS/LTE Basic Configuration Figure 2: AGCF/VGW session
34、processing models 4.3 Parameter requirements IMS/VoLTE systems shall comply with the requirements given in tables 1 to 9. ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)8 Table 1 Meaning of timers Parameter Q.543 1 IMS, PES equivalent Reference Load A Reference Load B Detailed description Mean Value 95 % pr
35、obability of not exceeding Mean Value 95 % probability of not exceeding Local exchange call request delay - originating outgoing and internal traffic connections ANALOGUE SUBSCRIBER LINES Local exchange call request delay - originating outgoing and internal traffic connections. clause 2.3.2.1 1 For
36、ANALOGUE SUBSCRIBER LINES, call request delay is defined as the interval from the instant when the off-hook condition is recognizable at the subscriber line interface of the exchange until the exchange begins to apply dial tone to the line. The call request delay interval is assumed to correspond to
37、 the period at the beginning of a call attempt during which the exchange is unable to receive any call address information from the subscriber. PES 4 For ANALOGUE SUBSCRIBER LINES connected to the AGCF/MSAN. Call request delay is defined as the interval from the instant when the off-hook condition i
38、s recognizable at the subscriber line interface of the AGCF/MSAN until the AGCF/MSAN begins to apply dial tone to the line. 400 ms 600 ms 800 ms 1 000 ms ANALOGUE SUBSCRIBER with IAD (VGW) Local exchange call request delay - originating outgoing and internal traffic connections. PES 4 For ANALOGUE S
39、UBSCRIBER LINES connected to the VGW. Call request delay is defined as the interval from the instant when the off-hook condition is recognizable at the subscriber line interface of the VGW until the VGW begins to apply dial tone to the line. 400 ms 600 ms 800 ms 1 000 ms ETSI ETSI TS 186 008-4 V2.1.
40、1 (2015-05)9 Figure 3: Local exchange analogue subscriber call request delay: overlap sending Table 2 Meaning of timers Parameter Q.543 1 IMS, PES equivalent Reference Load A Reference Load B Detailed description Mean Value 95 % probability of not exceeding Mean Value 95 % probability of not exceedi
41、ng Local exchange ISDN subscriber call request delay: overlap sending ISDN SUBSCRIBER LINES Local exchange call request delay - Overlap sending. clause 2.3.2.2 1 Local exchange call request delay. Call request delay is defined as the interval from the instant at which the SETUP message has been rece
42、ived from the subscriber signalling system until the SETUP ACKNOWLEDGE message is passed back to the subscriber signalling system. ISDN 2 Call request delay is defined as the interval from the instant at which the SETUP message has been received from the subscriber signalling system until the SETUP
43、ACKNOWLEDGE message is passed back to the subscriber signalling system. 200 ms 250 ms 300 ms 400 ms IMS SUBSCRIBER Local exchange call request delay. IMS 3 Call request delay is defined as the interval from the instant at which the INVITE message has been received from the SIP subscriber until the 1
44、00 Trying from the SBC/P-CSCF is passed back to the subscriber. 15 ms 20 ms 30 ms 40 ms ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)10 Figure 4: Local exchange ISDN subscriber call request delay: overlap sending ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)11 Table 3 Meaning of timers Parameter Q.543 IMS, PES
45、equivalent Reference Load A Reference Load B Detailed description Mean Value 95 % probability of not exceeding Mean Value 95 % probability of not exceeding Local exchange ISDN subscriber call request delay: en Block sending ISDN SUBSCRIBER LINES Local exchange call request delay en-block sending. cl
46、ause 2.3.2.3 1 For DIGITAL SUBSCRIBER LINES using en-bloc sending, call request delay is defined as the interval from the instant at which the SETUP message is received from the subscriber signalling system until the call proceeding message is passed back to the subscriber signalling system. ISDN 2
47、For ISDN using en-bloc sending, call request delay is defined as the interval from the instant at which the SETUP message is received from the subscriber signalling system until the CALL PROCCEDING message is passed back to the subscriber signalling system. 300 ms 400 ms 500 ms 600 ms Figure 5: Loca
48、l exchange ISDN subscriber call request delay: en Block sending ETSI ETSI TS 186 008-4 V2.1.1 (2015-05)12 Table 4 Meaning of timers Parameter Q.543 1 IMS, PES equivalent Reference Load A Reference Load B Detailed description Mean Value 95 % probability of not exceeding Mean Value 95 % probability of
49、 not exceeding Alerting sending delay for terminating traffic (the users are in different locations, controlled by different S-CSCF/P-CSCF) ANALOGUE SUBSCRIBER LINES Alerting sending Delay for terminating traffic. clause 2.3.6.1.1 1 For calls terminating on ANALOGUE SUBSCRIBER LINES, alerting sending delay is defined as the interval from the instant when the last digit is available for processing in the exchange until the ringing tone is sent backwards toward the calling user
