1、STD.ETS1 TS LOO 524-ENGL 1997 3400855 04000b5 4b1 S TS 1 O0 524 V6.0.0 (1999-04) Technical Specification Digital cellular telecommunications system (Phase 2+); Signalling requirements relating to routeing of calls to mobile subscribers (GSM 03.04 version 6.0.0 Release 1997) STD-EfSI 100 524-ENGL 399
2、9 R 3400855 0400066 3TB I TS 100 524 V6.0.0 (1999-04) (GSM 03.04 version 6.0.0 Release 1997) 2 Reference DTS/SMG-O30304Q6 (4003003. PDF) Keywords Digital cellular telecommunications system, Global System for Mobile communications (GSM) ETSI Postai address F-O6921 Sophia Antipolis Cedex - FRANGE Offi
3、ce address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) No 7803/88 Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Internet secretariat Q etsi .f r Individual copies of this
4、ETSI deliverable can be downloaded from http:/www.etsi.org If you find errors in the present document, send your comment to: editorQeki.fr CoDvriaht Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction i
5、n ail media. 8 EuropeanTelecommunications Standards Institute 1999. Au rights reserved. ETSI STDoETSI TS 100 524-ENGL 1999 3400855 0400067 234 a (GSM 03.04 version 6.0.0 Release 1997) 3 TS 100 524 V6.0.0 (1999-04) Contents Intellectual Property Rights 4 Foreword 4 1 Scope 5 2 References 5 3 Definiti
6、ons and abbreviations 5 4 General routeing niles 5 5 Routeing of a call from a subscriber served by the HPLMN . 6 6 Routeing of a call from a subscriber in the same country as the HPLMN but not served by the HPLMN 7 6.1 Interrogation by a Gateway MSC . 7 6.2 Interrogation by the Originating LE . 9 7
7、 Routeing of a call from a subscriber in a different country from the HPLMN . 11 7.1 Interrogation by a Gateway MSC . 11 7.2 Interrogation by the Incoming ISC in the Destination Couniry 14 7.3 Interrogation by the Outgoing ISC in the Originating Country 16 8 Impact of supplementary services 17 8.1 C
8、aii Forwarding . 17 8.2 Closed User Group 18 8.3 Barring of Incoming Calls 18 8.4 Supplementary Service Incompatibility . 18 9 Unsuccessful call setup 18 9.1 Roaming Not Allowed . 18 9.2 WLMN Cannot Support The Required Service 18 9.3 HLR Restart . 18 Annex A (informative): Change Request History .
9、19 History 20 ETSI STD.ETS1 TS 100 524-ENGL 1979 m 3400855 OqOOObB 170 e (GSM 03.04 version 6.0.0 Release 1997) 4 TS 100 524 V6.0.0 (1 999-04) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The informttion pertaining to th
10、ese essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in SR O00 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notijed to ETSI in respect of ETSI standards“, which is available free of charge from the ETSI Secretari
11、at. Latest updates are available on the ETSI Web server (http:/www.etsi.org/ipr). 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 SR O00 3 14 (or the updates on the
12、ETSI Web server) which are, or may be, or may become, essenthl to the present document. Foreword This Technical Specification (TS) has been produced by the Special Mobile Group (SMG). The present document defines the Signalling requirements relating to routeing of calls to mobile subscribers within
13、the digital cellular telecommunications system. The contents of the present document is subject to continuing work within SMG and may change following formal SMG approval. Should SMG modify the contents of the present document it will be re-released with an identifying change of release date and an
14、increase in version number as follows: Version 6 .x.y where: 6 indicates Release 1997 of GSM Phase 2+ x the second digit is hcremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. y the third digit is incremented when editorial only changes have been incorpor
15、ated in the specification. ETSI STD-ETSI TS LOO 524-ENGL 1779 II 3400855 04000b9 007 E TS 1 O0 524 V6.0.0 (1 999-04) (GSM 03.04 version 6.0.0 Release 1997) 5 1 Scope When a subscriber wants to call a mobile station (MS), the network needs to know the location of the called MS in order to route the c
16、al to the appropriate Mobile services Switching Centre (MSC) - see GSM 03.12 on location registration. The present document describes how the routeing process can be performed, and considers the effect on the routeing process of the capabilities of the exchanges involved. The present document assume
17、s that the Mobile Station ISDN Number includes a specific National Destination Code which identifies the Home PLMN (“LMN) of the called MS (referred to below as the HPLM“). If the numbering plan for MSs is fully integrated into the fixed network numbering plan, the method of routeing may be differen
18、t. In the diagrams in clause 6, the originating local exchange is shown as being part of an ISDN. The same routeing principles apply if the originating local exchange is part of a PSTN. Short Messages are routed in the same way as circuit-switched calls: the SMS Gateway MSC must be able to intenogat
19、e the HLR of the MS for which the short message is intended, in order to route the short message to the visited MSC. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identifie
20、d 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. A non-specific reference to an ETS shall ais0 be taken to refer to later versions published as an EN
21、 with the same number. For this Release 1997 document, references to GSM documents are for Release 1997 versions (version 6.x.y). il 121 31 GSM 01.04: “Digital cellular telecommunication system (Phase 2+); Abbreviations and acronyms“. GSM 03.07: “Digital cellular telecommUnication system mase 2t); R
22、estoration procedures“. GSM 03.12 “Digital cellular telecommunication system (Phase 2+); Location registration procedures“. GSM 09.02 “Digital cellular telecommunications system (Phase 2+); Mobile Application Part (MAP) specification“. 141 3 Definitions and abbreviations Abbreviations used in the pr
23、esent document are listed in GSM 01.04. 4 General routeing rules The number dialled by the calling subscriber contains no indication of the location of the called MS. in order to route the call to the MS the network must be aware of the location of the MS and the routeing address to be used. The rou
24、teing address is the Mobile Station Roaming Number (MSRN); the only network entity which can provide the MSRN is the Home Location Register (HLR) of the HpLMN, hence in order to route the call to the visited MSC (VMSC) where the called MS is located it is necessary to interrogate the HLR. ETSI STD-E
25、TSI TS LOO 52Li-ENGL 1999 6 3400855 0400070 829 I (GSM 03.04 version 6.0.0 Release 1997) 6 TS 100 524 V6.0.0 (1999-04) The preferred arrangement for interrogation of the HLR is to direct the cali to a Gateway MSC (GMSC) which is part of the HPLMN. This simplifies the process of charging the called s
26、ubscriber correctly if the call has to be re-routed because the called MS has roamed to a different PLMN or if the call has to be forwarded. The consequence of this is that the preferred signailing procedure is as follows: i) When a subscriber wants to call an MS he dials the MSISDN of the called MS
27、. ii) The originating local exchange ), or a transit exchange, anaiyses the dialled number and recognises the NDC which identifies the HPLMN. If the calling subscriber is in a different country from the called MS, this analysis will in general not be performed by the originatimg LE; when the interna
28、tional prefix is recognised, the call is routed to an outgoing International Switching Centre (ISC) without any further analysis, and the incoming ISC in the destination country recognises the NDC of the HPLMN. iii) The call is directed to a GMSC in the HELMN. The GMSC interrogates the HLR, which re
29、turns the MSRN for the called MS. The HLR obtains the MSRN by interrogating the VLR where the called MS is currently registered. This procedure uses the Mobile Application Part of Signalling System CClT No 7 - see Technical Specification GSM 09.02. iv) The GMSC uses the MSRN to route the call to the
30、 VMSC. Clause 5 describes the routehg of a call from a subscriber served by the HPLMN. Clause 6 describes the routeing of a call from a subscriber in the same country as the HPLMN, but not served by the HPLMN. Clause 7 describes the routeing of a call from a subscriber in a different country from th
31、e HPLMN. 5 Routeing of a call from a subscriber served by the HPLMN If the calling subscriber is served by an exchange which is part of the HELm, the configuration is as shown in figure 1. The originating MSC is able to interrogate the HLR for an MSRN, and the call is routed within the PLMN. If the
32、called MS has roamed to another PLMN the originating MSC routes the call to the visited PLMN (WLMN) as shown in figure 2. W na .ni / ruviN Figure 1: Call from a subscriber in the HPLMN of the called MS STDmETSI TS LOO 524-ENGL 1999 3400855 0400073 7b5 W (GSM 03.04 version 6.0.0 Release 1997) 7 TS 1
33、O0 524 V6.0.0 (1 999-04) Figure 2: Call from a subscriber in the HPLMN of the called MS; called MS roamed to another PLMN 6 Routeing of a call from a subscriber in the same country as the HPLMN but not served by the HPLMN This clause considers two configurations: where the KLR is internogated by a g
34、ateway exchange which is part of the HFLhIN (the preferred configuration), and where the HLR is inteirogated by the originathg LE. 6.1 Interrogation by a Gateway MSC If the HLR is interrogated by a gateway exchange which is part of the HPW, the configuration is as shown in figure 3. The cail is hand
35、led as described in clause 4. If the caiied MS has roamed outside its HPLMN the GMSC routes the call to the visited PLMN (WLMN) as shown in figure 4. ETSl STD-ETSI TS 100 5ZY-ENGL 1999 W 3400855 0400072 bTL sl (GSM 03.04 version 6.0.0 Release 1997) 8 TS 100 524 V6.0.0 (1999-04) Figure 3: Call from a
36、 subscriber in the HPLMN country of the called MS; interrogation by GMSC in the HPLMN ETSI STD-ETSI TS 100 524-ENGL 1799 I 3YOO855 0400073 538 m (GSM 03.04 version 6.0.0 Release 1997) 9 TS 1 O0 524 V6.0.0 (1 999-04) n VPLMN Interrogate u HPLMN Figure 4: Call from a subscriber in the HPLMN country of
37、 the called MS; interrogation by GMSC in the HPLMN; called MS roamed to another PLMN Interrogation by the Originating LE If the HLR is interrogated by the onginatkg LE, the configuration is as shown in figure 5. After the HL,R has retumed the MSRN to the originating LB, the LE routes the call to the
38、 VMSC. If the called MS has roamed outside its the orighaing LE routes the call to the visited PLMN (WW) as shown in figure 6. In this case, the routeing for the call does not pass through the HPLMN. ETSI STD=ETSI TS LOO 524-ENGL 1999 3400855 OY00074 474 S (GSM 03.04 version 6.0.0 Release 1997) 10 T
39、S 1 O0 524 V6.0.0 (1 999-04) Figure 5: Call from a subscriber in the HPLMN country of the called MS; interrogation by originating LE Figure 6: (W) HPLMN Call from a subscriber in the HPLMN country of the called MS; interrogation by LE; called MS roamed to another PLMN originating ETSI STD.ETSI TS LO
40、O 524-ENGL 1999 I 3400855 040075 300 a (GSM 03.04 version 6.0.0 Release 1997) 11 TS 100 524 V6.0.0 (1999-04) 7 Routeing of a call from a subscriber in a different country from the HPLMN This clause considers three configurations: where the HLR is inten-ogated by a gateway exchange which is part of t
41、he WLMN (the preferred configuration), where the HLR is interrogated by the incoming ISC in the country of the WLMN, and where the HLR is interrogated by the outgoing ISC in the country of the caiiing subscriber. 7.1 Interrogation by a Gateway MSC If the HLR is interrogated by a gateway exchge which
42、 is part of the HPLMN, the configuration is as shown in figure 7. The caii is handled as described in chue 4. If the called MS has roamed outside its HPLMN country the GMSC routes the cali to the visited PLMN (VPLMN) via a second intemationai route, as shown in figure 8. ETSI STD.ETS1 TS 100 524-ENG
43、L 1999 61 3400855 040007b ZY7 W (GSM 03.04 version 6.0.0 Release 1997) 12 TS 1 O0 524 V6.0.0 (1 999-04) I uc ISC Figure 7: Call from a subscriber in a different country from the called MS; interrogation by GMSC in the HPLMN ETSI STD-ETSI TS LOO 524-ENGL 1999 II 3400855 0400Q77 183 $111 (GSM 03.04 ve
44、rsion 6.0.0 Release 1997) 13 TS 1 O0 524 V6.0.0 (1 999-04) Figure 8: Call from a subscriber in a different country from the called MS; interrogation by GMSC in the HPLMN; called MS roamed to another PLMN ETSI STD-ETSI TS LOO 524-ENGL 1997 II 3400855 0400078 OLT M (GSM 03.04 version 6.0.0 Release 199
45、7) 14 TS 100 524 V6.0.0 (199944) 7.2 Interrogation by the Incoming ISC in the Destination Country If the HLR is interrogated by the incoming ISC in the HPLMN country, the conguration is as shown in figure 9. After the HLR has returned the MSRN to the incoming ISC, the incoming ISC routes the cail to
46、 the VMSC. If the caiied MS has roamed to another country the incoming ISC routes the caii to the visited PLMN (WLMN) as shown in figure 10. In this case, the routeing for the cail does not pass through the HPLMN. Figure 9: Call from a subscriber in a different country from the called MS; interrogat
47、ion by incoming ISC ETSI STDmETSI TS LOO 524-ENGL 3999 I 3400855 0400079 T5b Bp (GSM 03.04 version 6.0.0 Release 1997) 15 TS 1 O0 524 V6.0.0 (1 99944) I I Figure 10: Call from a subscriber in a different country from the called MS; interrogation by incoming ISC; called MS roamed to another PLMN ETSI
48、 STD-ETSI TS LOO 524-EMGL 1999 I 3400855 0400080 778 (GSM 03.04 version 6.0.0 Release 1997) 16 TS 1 O0 524 V6.0.0 (1 999-04) 7.3 Interrogation by the Outgoing ISC in the Originating Country If the HLR is interrogated by the outgohg ISC in the originating subscribers country, the configuration is as
49、shown in figure 11. After the HLR has returned the MSRN to the outgoing ISC, the outgoing ISC routes the call to the VMSC via an incoming ISC in the HPLMN country. If the called MS has roamed to another couny the outgoing ISC routes the call to the visited PLMN (VPLMN) as shown in figure 12. In this case, the routeing for the call does not pass through the “LMN country. O/G ISC .g /.,.,. . Interrogate Figure 11: Call from a subscriber in a different country from the called MS; interrogation by outgoing ISC ETSI STD.ETSI TS LOO 524-ENGL 1999 I 3400855 O
