1、 ETSI TS 1Digital cellular telecoUniversal Mobile TelSupport ofSe(3GPP TS 22.0TECHNICAL SPECIFICATION122 079 V13.0.0 (2016communications system (Phaelecommunications System (of Optimal Routeing (SOR); Service definition; Stage 1 .079 version 13.0.0 Release 13GLOBAL SYSTEMOBILE COMMUN16-01) hase 2+);
2、 (UMTS); 13) TEM FOR ICATIONSRETSI ETSI TS 122 079 V13.0.0 (2016-01)13GPP TS 22.079 version 13.0.0 Release 13Reference RTS/TSGS-0122079vd00 Keywords GSM,UMTS 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 -
3、 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.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electr
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9、ed and owned by the GSM Association. ETSI ETSI TS 122 079 V13.0.0 (2016-01)23GPP TS 22.079 version 13.0.0 Release 13Intellectual 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,
10、 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. Latest updates are available on
11、the ETSI Web server (https:/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 Web server) which are, or may
12、 be, or may become, essential to 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.
13、 These should be interpreted as being 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
14、 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 ETSI TS 1
15、22 079 V13.0.0 (2016-01)33GPP TS 22.079 version 13.0.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 5g34 Description of Optimal Routing . 6g35 Functional requirements . 6g35.1 Ge
16、neral . 6g35.2 Normal operation 6g35.2.1 A is a fixed subscriber or a mobile subscriber who may not benefit from OR . 7g35.2.2 A is a mobile subscriber who may benefit from OR . 8g35.2.2.1 Description of the call routing . 8g35.2.2.2 Call scenarios handled in OR Phase 1 . 9g35.3 Exceptional procedur
17、es or unsuccessful outcome 13g35.3.1 Non-support of SOR in the VPLMN of the caller 13g35.3.2 Non-support of SOR in the HPLMN of the B subscriber . 13g35.3.3 Non support of SOR in the VPLMN of the B subscriber 13g35.3.4 Calls to special mobile network numbers . 13g36 Interactions of Optimal Routing w
18、ith Supplementary Services . 14g36.1 Call Forwarding 14g36.2 Call Barring 14g36.3 Call Transfer . 14g36.4 Call Deflection . 14g36.5 Advice of Charge 14g37 Interactions of Optimal Routing with Operator Determined Barring (ODB). 14g38 Interactions of Optimal Routing with CAMEL 14g3Annex A: Change hist
19、ory . 15g3History 16g3ETSI ETSI TS 122 079 V13.0.0 (2016-01)43GPP TS 22.079 version 13.0.0 Release 13Foreword This Technical Specification 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 cha
20、nge following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG 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 pres
21、ented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented 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
22、 the document. ETSI ETSI TS 122 079 V13.0.0 (2016-01)53GPP TS 22.079 version 13.0.0 Release 131 Scope This Stage 1 description of the first phase of Support of Optimal Routing (SOR): - compiles the basic service requirements for SOR; - describes the interactions for Supplementary Services (SS) in or
23、der to cater for SOR; - refers to modifications to network features required by SOR. This specification does not address the following: - There is no need for optimisation of the routing of calls originally directed to a fixed network subscriber, because the physical address of a fixed network termi
24、nating line cannot differ from its logical address. - SOR in non-PLMNs is not a subject of this TS, but might be possible by bilateral arrangement between PLMN operators and those non-PLMN operators. The purpose of SOR is to reduce the number of unnecessary inter-PLMN call legs. The first phase of S
25、OR applies to: - OR for the benefit of the B party i.e. Mobile terminated calls with late call forwarding to the home or visited country (scenarios 1 and 2), and optionally; - OR for the benefit of the A party, e.g. Mobile to mobile calls where both mobile subscribers are in the same country (scenar
26、ios 3 to 10). The complete set of scenarios included in the phase 1 of OR is presented in the paragraph for normal procedures. All other scenarios are excluded from Phase 1 of OR. Note that Optimal Routing is applicable to national roaming situations, that is to calls directed to a mobile subscriber
27、 roaming in her home country, but registered in a PLMN different from her HPLMN. All further call scenarios, including multiple call forwarding, are left to subsequent phases of SOR. Subsequent phases of SOR shall be backwards compatible with this first phase. 2 References The following documents co
28、ntain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-spec
29、ific 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 of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“.
30、 3 Definitions and abbreviations Administrative PLMN: The complete set of all functional entities normally regarded as a single PLMN. Basic OR : Routeing of a call by the direct route when no forwarding occurs. ETSI ETSI TS 122 079 V13.0.0 (2016-01)63GPP TS 22.079 version 13.0.0 Release 13Direct rou
31、te: A call uses the direct route if it is routed from the serving network of the original calling party to the serving network of the ultimate called party without any intermediate PLMN. HPLMN route: A call uses the HPLMN route if the destination is deduced from the MSISDN of the called party. This
32、forces the call to be routed via the HPLMN of the called party. HPLMN leg: The HPLMN leg is that part of the HPLMN route from the IPLMN to the HPLMN of the called party. IPLMN: An IPLMN is a PLMN which interrogates the HPLMN of a called party in order to determine the whereabouts of that party. Earl
33、y Call Forwarding : Early Call Forwarding is Call Forwarding performed from the IPLMN before the call has been extended to the VPLMN of the forwarding subscriber (i.e. Call Forwarding Unconditional and Conditional Call Forwarding on Not Reachable known at the IPLMN before extension of the call) Func
34、tional PLMN: For the purposes of this description the Administrative PLMN is divided into functional PLMNs that represent different aspects of the Optimal Routeing functionality. Late Call Forwarding: Late Call Forwarding is Call Forwarding performed after the call has been extended to the VPLMN of
35、the forwarding subscriber (i.e. Conditional Call Forwarding on Busy, Conditional Call Forwarding on No Reply and Conditional Call Forwarding on Not Reachable detected in the VPLMN of the forwarding subscriber). Late Call Forwarding may be invoked in the IPLMN or in the VPLMN of the forwarding subscr
36、iber. Special mobile network number: For the purposes of this description special mobile network numbers are numbers belonging logically to a PLMN but not to a mobile subscriber. Examples are the customer service number or value added service numbers. Abbreviations are given in TR 21.905 1. 4 Descri
37、ption of Optimal Routing Support of Optimal Routing (SOR) is a network feature which enables the calls directed to a mobile subscriber to be routed directly to the mobile subscribers actual location, or to her forwarded-to destination (instead of via the HPLMN or in the case of Late Call Forwarding
38、via the VPLMN). The IPLMN handling the call shall decide whether or not to optimise the routing of the call taking into account information provided by the called mobile subscribers HPLMN. For given subscribers, as a network option, the HPLMN may permit or deny OR on a per call basis. 5 Functional r
39、equirements 5.1 General SOR shall be provided for all circuit switched Telecommunication Services, except emergency calls, Dedicated PADand Dedicated Packet Access (GPRS is for further study). The network feature shall be applied automatically for all calls except for those calls for which the HPLMN
40、 of the called party denies the optimal routing. 5.2 Normal operation In the first phase of SOR, the routes of calls will be optimised for the cases of OR being performed within a country or towards the country where the call would have been routed normally. Under all other circumstances, the basic
41、call routing is applied: - If the IPLMN detects that basic OR cannot be applied, the IPLMN routes the call according to the dialled number. ETSI ETSI TS 122 079 V13.0.0 (2016-01)73GPP TS 22.079 version 13.0.0 Release 13- If the IPLMN detects that OR for Late Call Forwarding cannot be applied, the Ca
42、ll Forwarding will be performed in the VPLMN of the forwarding subscriber. If the serving network of the ultimate destination supports SOR, the serving network of the caller shall be able to indicate to the network visited by the ultimate destination that the call has been optimally routed and to in
43、dicate the originating PLMN of the optimally routed leg. The complete set of scenarios included in phase 1 of SOR is described below. The notation used for the scenario diagrams is defined in figure 1. Traffic routeTraffic route of basic GSM routeing,not used for OROutput of call record informationI
44、nterrogationFunctional PLMN(e.g. IPLMN, VPLMN-B)Administrative PLMN, whichmay include twofunctional PLMNsCall AttemptFigure 1: Notation used in scenario diagrams If one of those scenarios occurs, SOR shall be invoked. The assumptions taken are the following : - A subscriber A sets up a call to a mob
45、ile subscriber B, who may have forwarded her calls to a subscriber C. - The C subscriber may be either a fixed subscriber or a mobile subscriber. If C is a mobile subscriber, the location of C taken into account in the following paragraphs is the location of HPLMN-C. 5.2.1 A is a fixed subscriber or
46、 a mobile subscriber who may not benefit from OR As the originating network does not have the ability to interrogate the HPLMN of the B subscriber, the normal call handling is applied. Once the HPLMN of the B subscriber has the control of the call, the call may be optimised in the case of a forwarde
47、d call towards a party located in the Home Country of the B subscriber or in the country visited by the B subscriber. NOTE: - A may be in any country. - In the two following cases, the IPLMN is HPLMN-B. ETSI ETSI TS 122 079 V13.0.0 (2016-01)83GPP TS 22.079 version 13.0.0 Release 13IPLMNHPLMN-BVPLMN-
48、BACountry ZCountry YCCall record:Call forwarding recordOR flagCountry XScenario 1: OR for Late Call Forwarding, C is in the same country as HPLMN-B NOTE: Call records shown in the figure are only for information IPLMNHPLMN-BVPLMN-BACountry ZCountry YCCall record:Call forwarding recordOR flagCountry
49、XScenario 2: OR for Late Call Forwarding, C is in the same country as VPLMN-B NOTE: Call records shown in the figure are only for information 5.2.2 A is a mobile subscriber who may benefit from OR 5.2.2.1 Description of the call routing If A sets up a call to B, then the originating PLMN shall interrogate the HPLMN of the mobile subscriber B in order to know how to route the call. If B is registered in the same country as A, then the call shall be routed directly to B as described below. If B has activated a Call Forward to a destination located in the Home Countr
