1、 ETSI TS 123 079 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Support of Optimal Routeing (SOR); Technical realization (3GPP TS 23.079 version 15.0.0 Release 15) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMM
2、UNICATIONSRETSI ETSI TS 123 079 V15.0.0 (2018-07)13GPP TS 23.079 version 15.0.0 Release 15Reference RTS/TSGC-0423079vf00 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 Associat
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9、ered and owned by the GSM Association. ETSI ETSI TS 123 079 V15.0.0 (2018-07)23GPP TS 23.079 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these e
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13、SI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been pro
14、duced 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 being references to the corresponding ETSI deliverables. The cross reference b
15、etween 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 clause
16、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 123 079 V15.0.0 (2018-07)33GPP TS 23.079 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Fore
17、word . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 5g32 References 5g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 Architecture 7g34.1 Optimal routeing for basic mobile-to-mobile calls . 7g34.2 Optimal routeing for conditional call forwarding . 9g35 Optima
18、l routeing for basic mobile-to-mobile calls: message flows . 9g35.1 Successful outcome 10g35.2 Unsuccessful outcome 11g35.2.1 B subscriber address not recognised as belonging to a UMTS or GSM PLMN . 11g35.2.2 HLRB or VLRB does not support optimal routeing . 11g35.2.3 OR charging requirements contrav
19、ened 11g36 Optimal routeing for conditional call forwarding: message flows . 12g36.1 Early call forwarding 12g36.1.1 Forwarding without interrogation of VLRB . 12g36.1.1.1 Successful outcome . 12g36.1.1.2 Unsuccessful outcome. 13g36.1.2 Forwarding after interrogation of VLRB 13g36.1.2.1 Successful o
20、utcome . 13g36.1.2.2 Unsuccessful outcome. 14g36.2 Late call forwarding . 14g36.2.1 Successful outcome. 15g36.2.2 Unsuccessful outcome 16g36.2.2.1 GMSC does not support OR . 16g36.2.2.2 HLRB does not support OR 16g36.2.2.3 VMSCB/VLRB does not support OR . 16g36.2.2.4 OR charging requirements contrav
21、ened 16g37 Interactions between optimal routeing and supplementary services 16g37.1 Call forwarding 16g37.2 Closed User Group (CUG) . 17g37.3 Advice of Charge 17g37.4 Call barring . 17g37.5 Other supplementary services . 17g38 Interactions between optimal routeing and other network features 18g38.1
22、Operator determined barring 18g38.2 CAMEL 18g39 Functional requirements of entities performing optimal routeing 19g39.1 Charging requirements for optimal routeing 19g39.2 Functional behaviour of VMSCA 19g39.3 Functional behaviour of VLRA 20g39.4 Functional behaviour of GMSC . 20g39.4.1 Procedure OR_
23、Set_ORA_Parameters. 20g39.4.2 Procedure OR_Handle_RCH 20g39.4.3 Procedure Route_Permitted 21g39.4.4 Procedure OR_Handle_SRI_Negative_Response 21g3ETSI ETSI TS 123 079 V15.0.0 (2018-07)43GPP TS 23.079 version 15.0.0 Release 159.5 Functional behaviour of HLR . 27g39.5.1 Procedure OR_HLR_CF . 28g39.5.2
24、 Procedure OR_HLR_Interrogate_VLR 28g39.6 Functional behaviour of VLRB 31g39.6.1 Functional behaviour of VLRB for provision of subscriber information 31g39.6.2 Functional behaviour of VLRB for roaming number allocation . 32g39.6.3 Functional behaviour of VLRB when handling an incoming call. 32g39.7
25、Functional behaviour of VMSCB . 32g39.7.1 Procedure Handle_ORLCF_VMSC 32g310 Contents of messages . 33g310.1 Messages on the B interface (MSC-VLR) 34g310.1.1 Send Info For Outgoing Call. 34g310.1.2 Send Info For Outgoing Call negative response . 34g310.1.3 Send Info For Incoming Call 34g310.1.4 Send
26、 Info For Incoming Call ack 34g310.1.5 Send Info For Incoming Call negative response . 34g310.1.6 Complete Call . 34g310.1.7 Process Call Waiting . 34g310.2 Messages on the C interface (MSC-HLR) 35g310.2.1 Send Routeing Info . 35g310.2.2 Send Routeing Info ack . 35g310.2.3 Send Routeing Info negativ
27、e response 35g310.3 Messages on the D interface (VLR-HLR) 36g310.3.1 Provide Roaming Number 36g310.3.2 Provide Roaming Number ack 36g310.3.3 Provide Roaming Number negative response . 36g310.3.4 Provide Subscriber Information 36g310.3.5 Provide Subscriber Information ack . 36g310.4 Messages on the E
28、 interface (MSC-MSC) . 37g310.4.1 Resume Call Handling 37g310.4.2 Resume Call Handling ack . 37g310.4.3 Resume Call Handling negative response . 37g3Annex A (informative): Handling of an IAM at an MSC . 38g3Annex B (informative): Change history . 39g3History 40g3ETSI ETSI TS 123 079 V15.0.0 (2018-07
29、)53GPP TS 23.079 version 15.0.0 Release 15Foreword This Technical Specification (TS) has been produced by the 3rdGeneration Partnership Project (3GPP). The present document specifies the technical realisation of the first phase of the network feature Support of Optimal Routeing (SOR) within the 3GPP
30、 system. 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 TSG with an identifying change of release date and an increase in versio
31、n 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 incremented for all changes of substance, i.e. technical enhancements, correction
32、s, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. 1 Scope The present document specifies the technical realisation of the first phase of the network feature Support of Optimal Routeing (SOR). The first phase of SOR provides: - as a
33、network operator option, a method to route a call from one mobile subscriber directly to another mobile subscriber who is in the same country as the calling mobile subscriber or in the called mobile subscribers home country, without needing to connect the call via the HPLMN of the called subscriber,
34、 even though the called mobile subscriber has roamed outside his HPLMN; - a method to forward calls when a called mobile subscriber who has roamed outside his home country is busy, or is not reachable, or does not reply, to a forwarded-to destination in the HPLMN country of the called subscriber or
35、the VPLMN country of the called subscriber, without needing to connect the forwarded call via the VPLMN of the called subscriber; - a method to combine the optimal routeing described in the first bullet point above with the optimal routeing described in the second bullet point above. OR of a call is
36、 permitted only if all entities involved in handling the call support OR. Other cases of optimal routeing (e.g. calls where the calling and called subscribers are in different countries, forwarding to a mobile subscriber or multiple forwarding) will be considered for inclusion in later phases. 2 Ref
37、erences 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, version number, etc.) or non-specific. - For a specific reference, subsequent
38、revisions do not apply. ETSI ETSI TS 123 079 V15.0.0 (2018-07)63GPP TS 23.079 version 15.0.0 Release 15- 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 versio
39、n of that document in the same Release as the present document. 1 GSM 03.04: “Digital cellular telecommunications system (Phase 2+); Signalling requirements relating to routeing of calls to mobile subscribers“. 2 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 3 3GPP TS 22.079: “Support of Opt
40、imal Routeing (SOR); Service definition - Stage 1“. 4 3GPP TS 22.082: “Call Forwarding (CF) supplementary services - Stage 1“. 5 3GPP TS 23.003: “Numbering, addressing Technical realization“. 7 3GPP TS 23.078: “Customized Applications for Mobile network Enhanced Logic (CAMEL) - Phase 3; Stage 2“. 8
41、3GPP TS 23.085: “Closed User Group (CUG) Supplementary Service - Stage 2“. 9 3GPP TS 23.087: “User to-User Signalling (UUS) - Stage 2“. 10 3GPP TS 23.172: “Technical realization of Circuit Switched (CS) multimedia service; UDI/RDI fallback and service modification“ 3 Definitions and abbreviations 3.
42、1 Definitions For the purposes of the present document, the following terms and definitions apply. A subscriber: calling subscriber, who may be fixed or mobile B subscriber: mobile subscriber originally called by the A subscriber C subscriber: subscriber to whom the B subscriber has requested that c
43、alls be forwarded. The C subscriber may be fixed or mobile Direct route: call takes the direct route if the route from the serving PLMN of the A subscriber to the serving PLMN of the B subscriber is defined by the MSRN of the B subscriber rather than by the MSISDN of the B subscriber Early call forw
44、arding: call forwarding from the IPLMN before the call has been extended to the VPLMN of the forwarding subscriber HPLMN leg: portion of the HPLMN route from the serving MSC of the A subscriber to an MSC in the HPLMN of the B subscriber HPLMN route: call takes the HPLMN route if the route from the s
45、erving MSC of the A subscriber to the serving MSC of the B subscriber is defined by the MSISDN of the called subscriber. This forces the call to be routed via the HPLMN of the B subscriber Interrogating PLMN (IPLMN): PLMN which interrogates the HPLMN of the B subscriber to obtain information to rout
46、e the call to that subscriber or to the forwarded-to destination defined by the called mobile subscriber. The IPLMN is also the VPLMN of the A subscriber Late call forwarding: call forwarding after the call has been extended to the VPLMN of the forwarding subscriber. Late call forwarding may be invo
47、ked in the IPLMN or the VPLMN of the forwarding subscriber Reference address: address which defines the maximum charge which the A party is prepared to pay for the call leg which he originates Routeing address: address which the GMSC uses to route a call towards the B subscriber or the C subscriber
48、ETSI ETSI TS 123 079 V15.0.0 (2018-07)73GPP TS 23.079 version 15.0.0 Release 153.2 Abbreviations Abbreviations used in the present document are listed in TS 21.905 2. For the purposes of the present document, the following abbreviations apply: BOIZC Barring of Outgoing InterZonal Calls BOIZC-exHC Ba
49、rring of Outgoing InterZonal Calls except those directed to the HPLMN Country CMN CAMEL Modified Number FTN Forwarded-To NumberFTNW Forwarded-To NetWork GMSCA The GMSC in the IPLMN, which may also be VMSCA GMSCB The GMSC in HPLMNB GMSCC The GMSC in HPLMNC HLRB The HLR of the B subscriber HLRC The HLR of the C subscriber HPLMNB The HPLMN of the B subscriber HPLMNC The HPLMN of the C subscriber IAM Initial Address MessageIPLMN Interrogating PLMN ORLCF Optimal Routeing for Late Call Forwarding PRN Provide Roaming Number PSI Provide Subscriber Information RC
