1、 ETSI TS 143 005 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Technical performance objectives (3GPP TS 43.005 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 143 005 V14.0.0 (2017-04)13GPP TS 43.005 version 14
2、.0.0 Release 14Reference RTS/TSGC-0043005ve00 Keywords GSM 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 Impor
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9、on. ETSI ETSI TS 143 005 V14.0.0 (2017-04)23GPP TS 43.005 version 14.0.0 Release 14Intellectual 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 m
10、embers 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 (https:/ipr.e
11、tsi.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 Web server) which are, or may be, or may become, essential to
12、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 be interpreted as b
13、eing 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. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“,
14、 “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 ETSI TS 143 005 V14.0.0 (2017-04)33GPP TS
15、43.005 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g31.1 References 6g31.2 Abbreviations . 7g32 General . 7g33 Performance design objectives . 7g33.1 General . 7g33.2 MSCs 7g33.2.1 Reference loads . 7g33.2.1.1 Refe
16、rence load on incoming interexchange circuits 7g33.2.1.2 Reference load for MS calls 7g33.2.1.3 Impact of supplementary services . 8g33.2.2 Inadequately handled call attempts . 8g33.2.2.1 Definition 8g33.2.2.2 Probability of inadequately handled call attempts occurring 8g33.2.3 Delay probability 9g3
17、3.2.3.1 User signalling acknowledgement delay . 9g33.2.3.2 Signalling transfer delay . 9g33.2.3.3 Through connection delay . 9g33.2.3.4 Incoming call indication sending delay - (for terminating and internal traffic connections) 10g33.2.3.5 Connection release delay . 11g33.2.3.6 Call clearing delay.
18、11g33.2.3.7 Timing for start of charging (circuit switched calls) . 11g33.2.3.8 Call set-up delay 11g33.2.3.9 Handover delay . 11g33.2.3.10 Off-air-call-set-up (OACSU) delay . 12g33.2.3.11 Discontinuous reception mode delay 12g33.2.4 Call processing performance objectives . 12g33.2.4.1 Premature rel
19、ease 12g33.2.4.2 Release failure . 12g33.2.4.3 Incorrect charging or accounting . 12g33.2.4.4 Misrouting . 12g33.2.4.5 No tone 12g33.2.4.6 Other failures . 13g33.2.4.7 Transmission performance 13g33.2.4.8 Slip rate . 13g33.2.5 MSC performance during overload conditions . 13g33.3 Performance design o
20、bjectives for HLRs . 13g33.3.1 Reference loads . 13g33.3.2 Objectives . 13g33.4 Performance design objectives for VLRs . 13g33.4.1 Reference loads . 13g33.4.2 Objectives . 13g34 Transmission characteristics. 14g34.1 General . 14g34.1.1 BS-MSC path 14g34.1.2 MSC 14g34.2 System delay distribution . 14
21、g34.2.1 Speech channel delay 14g34.2.2 Data channel delay 16g3ETSI ETSI TS 143 005 V14.0.0 (2017-04)43GPP TS 43.005 version 14.0.0 Release 14Annex A (informative): Change Request History 21g3History 22g3ETSI ETSI TS 143 005 V14.0.0 (2017-04)53GPP TS 43.005 version 14.0.0 Release 14Foreword This Tech
22、nical Report has been produced by the 3rdGeneration Partnership 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 T
23、SG with an identifying change of release date and an increase 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 incremente
24、d for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 143 005 V14.0.0 (2017-04)63GPP TS 43.005 version 14.0.0 Release 141 Scope The present document con
25、tains technical performance objectives that should be met for the fixed infrastructure of GSM PLMNs. Concerning transmission delay for the PLMN in clause 4, the requirements should also be met by GSM Mobile Stations (MS)s. These performance design objectives are applicable to all implementations at
26、all points in the growth cycle up to the maximum size. These reference loads and performance objectives may be used by manufacturers in designing GSM PLMNs and by Administrations or Recognised Private Operating Agencies (RPOA)s in evaluating a specific design or for comparing different designs for p
27、otential use in the Administrations or RPOAs intended implementation. 1.1 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 publication, edition number, v
28、ersion number, etc.) 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 the latest version
29、of that document in the same Release as the present document. 1 Void. 2 3GPP TS 23.002: “Network architecture“. 3 3GPP TS 43.050: “Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) system“. 4 3GPP TS 45.010: “Radio subsystem synchronization“. 5 ITU-T Re
30、commendation E.600: “Terms and definitions of traffic engineering“. 6 ITU-T Recommendation G.921: “Digital sections based on the 2048 kbit/s hierarchy“. 7 ITU-T Recommendation Q.541: “Digital exchange design objectives - General“. 8 ITU-T Recommendation Q.543: “Digital exchange performance design ob
31、jectives“. 9 ITU-T Recommendation Q.551: “Transmission characteristics of digital exchanges“. 10 ITU-T Recommendation Q.554: “Transmission characteristics at digital interfaces of a digital exchange“. 11 ITU-T Recommendation Q.702: “Specifications of Signalling System No. 7 - Signalling data link“.
32、12 ITU-T Recommendation Q.706: “Message transfer part signalling performance“. 13 ITU-T Recommendation V.110: “Support of data terminal equipments (DTEs) with V-Series interfaces by an integrated services digital network“. 14 CEPT Recommendation T/S 64-30: “Digital exchange performance design object
33、ives“. 15 3GPP TS 21.905: “Vocabulary for 3GPP Specifications“ 16 3GPP TS 11.30: “Mobile Services Switching Centre Phase 1“ 17 3GPP TS 11.31: “Home Location Register Specification Phase 1“ 18 3GPP TS 11.32: “Visitor Location Register Specification Phase 1“ ETSI ETSI TS 143 005 V14.0.0 (2017-04)73GPP
34、 TS 43.005 version 14.0.0 Release 141.2 Abbreviations Abbreviations used in the present document are listed in 3GPP TS 21.905 15. 2 General For terminology and architecture for GSM PLMNs see 3GPP TS 23.002 2. Interfaces, interface characteristics, connections through an MSC and ancillary functions o
35、f the MSC are defined in 3GPP TS 11.30 16. The functions supported by HLRs and VLRs are given in 3GPP TS 11.31 17 and 11.32 18. Each MSC will be responsible for synchronisation, if required, with the fixed network to which it is connected. The requirements of ITU-T Recommendation Q.541 should be obs
36、erved. Timing and synchronisation of the radio subsystem is specified in the 3GPP TS 45.010 4. 3 Performance design objectives 3.1 General Part of the text is taken from ITU-T Recommendation Q.543 and part from CEPT Recommendation T/S 64-30. 3.2 MSCs 3.2.1 Reference loads The reference loads are tra
37、ffic load conditions under which the performance design objectives stated below are to be met. The following reference loads are defined. a) Reference load for incoming inter-exchange circuits; b) Reference load for circuit switched MS calls. Reference load A is intended to represent the normal uppe
38、r mean level of activity which Administrations or RPOAs would wish to provide for MSs, BS-MSC circuits and inter-exchange circuits. Reference load B is intended to represent an increased level beyond normal planned activity levels. 3.2.1.1 Reference load on incoming interexchange circuits a) Referen
39、ce load A - 0,7 Erlang average occupancy on all incoming circuits with 35 call attempts/hour/incoming circuit. This figure assumes 45 % ineffective call attempts. b) Reference load B - 0,85 Erlang average occupancy on all incoming circuits with 42 call attempts/hour/incoming circuit. 3.2.1.2 Referen
40、ce load for MS calls MS calls comprise MS originating and MS terminating traffic. Terminating call attempts from PSTN/ISDN to the MS are measured at the PSTN/ISDN interface of the PLMN. Terminating call attempts as part of the intra-PLMN MS-to-MS call attempts are measured at the GMSC functionality
41、in the VMSC. ETSI ETSI TS 143 005 V14.0.0 (2017-04)83GPP TS 43.005 version 14.0.0 Release 14a) Reference load A Table 1: Traffic model for circuit switched MS calls MS type Average traffic intensity (Erl/sbscr) Average BHCA/sbscr Overall mean holding time (s) W 0.010 0.60 60 X 0.018 1.00 65 Y 0.030
42、1.50 72Z 0.050 2.00 90 The data sets for MS types W through Y are chosen to cover field observations in various continents, countries and regions. With an increase of traffic per subscriber, the overall mean holding time tends to increase. The set Z is chosen as an extreme value, expressing the expe
43、ctation that such a large value should only be observed in association with a substantially increased overall mean holding time. b) Reference load B Reference load B is defined as a traffic increase over reference load A of: + 20% in Erlangs and. + 20% in BHCA. 3.2.1.3 Impact of supplementary servic
44、es If the reference model MSC assumes that significant use is made of supplementary services, the performance of the MSC can be strongly affected, especially in designs where processor capacity can become a limiting item. The performance delays recommended can be significantly lengthened at a given
45、call load under such circumstances. The Administration or Operating Agency defining the reference model should estimate the fractions of calls which use various supplementary services so that an average processor impact relative to a basic telephone call can be calculated. 3.2.2 Inadequately handled
46、 call attempts 3.2.2.1 Definition Inadequately handled call attempts are attempts which are blocked (as defined in ITU-T E.600 series of Recommendations) or are excessively delayed within the exchange. “Excessive delays“ are those that are greater than three times the “0,95 probability of not exceed
47、ing“ values recommended in the tables. For originating and transit calls, this inadequately handled call attempt parameter applies only when there is at least one appropriate outlet available. 3.2.2.2 Probability of inadequately handled call attempts occurring The values in table 2 are recommended.
48、Table 2 Type of connection Reference Load A Reference load B Internal 10-2 4 x 10-2 Originating 5 x 10-3 3 x 10-2 Terminating 2 x 10-3 2 x 10-2 Transit 10-3 10-2 ETSI ETSI TS 143 005 V14.0.0 (2017-04)93GPP TS 43.005 version 14.0.0 Release 143.2.3 Delay probability The following notes apply to the de
49、lay parameters included in this section: 1) The term “mean value“ is understood as the expected value in the probabilistic sense. 2) The terms “received from“ and “passed to“ the signalling system are meant to be that instant at which the information is exchanged between the signalling data link (layer 1) and the signalling link functions (layer 2) in ITU-T Signalling System No. 7. For Dm channel signalling it is designated as that instant when the information is exchanged between the data link layer (layer 2) and
