1、 ETSI TS 122 079 V14.0.0 (2017-03) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Support of Optimal Routeing (SOR); Service definition; Stage 1 (3GPP TS 22.079 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBIL
2、E COMMUNICATIONSRETSI ETSI TS 122 079 V14.0.0 (2017-03)13GPP TS 22.079 version 14.0.0 Release 14Reference RTS/TSGS-0122079ve00 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 - NAF 742 C As
3、sociation 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 electronic and/or p
4、rint versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept
5、 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 change of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.asp
6、x 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 Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
7、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. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. All
8、 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 ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered
9、and owned by the GSM Association. ETSI ETSI TS 122 079 V14.0.0 (2017-03)23GPP TS 22.079 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
10、 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 the
11、 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 be
12、, or may become, essential to the present document. Foreword The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross referen
13、ce 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“, “will not“, “can“ and “cannot“ are to be interpreted as described in cla
14、use 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 122 079 V14.0.0 (2017-03)33GPP TS 22.079 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3
15、Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 5g34 Description of Optimal Routing . 6g35 Functional requirements . 6g35.1 General . 6g35.2 Normal operation 6g35.2.1 A is a fixed subscriber or a mobile subscriber who may not benefi
16、t 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 procedures or unsuccessful outcome 13g35.3.1 Non-support of SOR in the VPLMN of the caller 13g35.3.2 Non-support o
17、f 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 with Supplementary Services . 14g36.1 Call Forwarding 14g36.2 Call Barring 14g36.3 Call Transfer . 14g36.4
18、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 history . 15g3History 16g3ETSI ETSI TS 122 079 V14.0.0 (2017-03)43GPP TS 22.079 version 14.0.0 Release 14Forew
19、ord This Technical Specification (TS) has been produced by ETSI 3rd Generation 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 w
20、ill 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 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the
21、 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 the document. ETSI ETSI TS 122 079 V14.0.0 (2017-03)53GPP TS 22.079 version 14.0.0 Release 141 Sco
22、pe 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 order to cater for SOR; - refers to modifications to network features required by SOR. This specifica
23、tion 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 terminating line cannot differ from its logical address. - SOR in non-PLMNs is not a subject of this TS,
24、 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 SOR applies to: - OR for the benefit of the B party i.e. Mobile terminated calls with late call forw
25、arding 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 (scenarios 3 to 10). The complete set of scenarios included in the phase 1 of OR is presented in the parag
26、raph 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 roaming in her home country, but registered in a PLMN different from her HPLMN. All further call s
27、cenarios, 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 contain provisions which, through reference in this text, constitute provisions of the present docume
28、nt. 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-specific reference, the latest version applies. In the case of a reference to a 3GPP document (includin
29、g 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“. 3 Definitions and abbreviations Administrative PLMN: The complete set of all functional entities n
30、ormally regarded as a single PLMN. Basic OR : Routeing of a call by the direct route when no forwarding occurs. ETSI ETSI TS 122 079 V14.0.0 (2017-03)63GPP TS 22.079 version 14.0.0 Release 14Direct route: A call uses the direct route if it is routed from the serving network of the original calling p
31、arty 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 forces the call to be routed via the HPLMN of the called party. HPLMN leg: The HPLMN leg is that pa
32、rt 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. Early Call Forwarding : Early Call Forwarding is Call Forwarding performed from the IPLMN before the ca
33、ll 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) Functional PLMN: For the purposes of this description the Administrative PLMN is divided into functiona
34、l 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 the forwarding subscriber (i.e. Conditional Call Forwarding on Busy, Conditional Call Forwarding on
35、 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 subscriber. Special mobile network number: For the purposes of this description special mobile network nu
36、mbers 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 Description of Optimal Routing Support of Optimal Routing (SOR) is a network feature which enables the ca
37、lls 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 via the VPLMN). The IPLMN handling the call shall decide whether or not to optimise the routing of
38、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 requirements 5.1 General SOR shall be provided for all circuit switched Telecommunication Services,
39、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 of the called party denies the optimal routing. 5.2 Normal operation In the first phase of SOR, th
40、e 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 call routing is applied: - If the IPLMN detects that basic OR cannot be applied, the IPLMN routes t
41、he call according to the dialled number. ETSI ETSI TS 122 079 V14.0.0 (2017-03)73GPP TS 22.079 version 14.0.0 Release 14- If the IPLMN detects that OR for Late Call Forwarding cannot be applied, the Call Forwarding will be performed in the VPLMN of the forwarding subscriber. If the serving network o
42、f 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 indicate the originating PLMN of the optimally routed leg. The complete set of scenarios included in
43、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 informationInterrogationFunctional PLMN(e.g. IPLMN, VPLMN-B)Administrative PLMN, whichmay include twofunctional
44、 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 mobile subscriber B, who may have forwarded her calls to a subscriber C. - The C subscriber may be eit
45、her 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 a mobile subscriber who may not benefit from OR As the originating network does not have the abili
46、ty 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 forwarded call towards a party located in the Home Country of the B subscriber or in the country visited by
47、 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 V14.0.0 (2017-03)83GPP TS 22.079 version 14.0.0 Release 14IPLMNHPLMN-BVPLMN-BACountry ZCountry YCCall record:Call forwarding recordOR flagCountry XScenario 1: OR for Late Call
48、 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 XScenario 2: OR for Late Call Forwarding, C is in the same country as VPLMN-B NOTE: Call records sh
49、own 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 Country of B or in the country where A is registered and this leads to the invocation of Early Call Forwa
