ETSI TS 123 090-2018 Digital cellular telecommunications system (Phase 2+) (GSM) Universal Mobile Telecommunications System (UMTS) Unstructured Supplementary Service Data (USSD) St_1.pdf

1、 ETSI TS 123 090 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Unstructured Supplementary Service Data (USSD); Stage 2 (3GPP TS 23.090 version 15.0.0 Release 15) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMU

2、NICATIONSRETSI ETSI TS 123 090 V15.0.0 (2018-07)13GPP TS 23.090 version 15.0.0 Release 15Reference RTS/TSGC-0423090vf00 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 Associati

3、on 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 print ve

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9、red and owned by the GSM Association. ETSI ETSI TS 123 090 V15.0.0 (2018-07)23GPP TS 23.090 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 es

10、sential IPRs, if any, 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 upda

11、tes are available on 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 serv

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13、I, 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 prod

14、uced 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 be

15、tween 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 3

16、.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 123 090 V15.0.0 (2018-07)33GPP TS 23.090 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Forew

17、ord . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Abbreviations . 5g34 Cross phase compatibility 6g35 Network initiated unstructured supplementary service 6g35.1 Handling of network initiated USSD 6g35.2 Functions and information flows 6g35.2.1 Invoking unstructured SS o

18、peration from the HLR 6g35.2.2 Invoking unstructured SS operation from the VLR 7g35.2.3 Invoking unstructured SS operation from the MSC 7g35.2.4 Forwarding USSD operations . 7g35.2.5 Handling of unstructured SS operation at the MS 7g35.3 Information stored in the HLR . 15g35.4 Information stored in

19、the VLR . 15g35.5 Handover 15g35.6 Cross-phase compatibility 15g36 Mobile initiated unstructured supplementary service data . 16g36.1 Handling of mobile initiated USSD 16g36.2 Functions and information flows 16g36.2.1 Handling of USSD request at MS . 16g36.2.2 Handling of USSD request at MSC 16g36.2

20、.3 Handling of USSD request at VLR . 16g36.2.4 Handling of USSD request at HLR . 17g36.2.5 Processing the USSD request 17g36.3 Information stored in the HLR . 30g36.4 Information stored in the VLR . 30g36.5 Handover 30g36.6 Cross-phase compatibility 31g3Annex A (informative): Change history . 32g3Hi

21、story 33g3ETSI ETSI TS 123 090 V15.0.0 (2018-07)43GPP TS 23.090 version 15.0.0 Release 15Foreword 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 change followin

22、g 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 presented to TSG

23、 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 the documen

24、t. ETSI ETSI TS 123 090 V15.0.0 (2018-07)53GPP TS 23.090 version 15.0.0 Release 151 Scope The present document gives the stage 2 description of Unstructured Supplementary Service Data (USSD). The unstructured supplementary service data (USSD) mechanism allows the Mobile Station (MS) user and a PLMN

25、operator defined application to communicate in a way which is transparent to the MS and to intermediate network entities. The mechanism allows development of PLMN specific supplementary services. The following diagram shows how handling of USSD is carried out, independently of the applications. Figu

26、re 1.1: Handling of USSD The present document defines the requirements for handling USSD at the MS and network entities. It does not include specification of particular applications, nor does it specify how a particular application is selected. Where more than one application exists at a network ent

27、ity, routing of messages to the correct application is carried out by the USSD handler. The MMI for USSD is specified in TS 22.030 and TS 22.090. The alphabet indicator and the data coding scheme are defined in TS 23.038. USSD may be initiated by the MS user, or by the network in the following ways:

28、 - Network initiated USSD (clause 1); - Mobile initiated USSD (clause 2). 2 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,

29、 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 (including a GSM document), a non-specific reference implicitly refers to the latest versio

30、n of that document in the same Release as the present document. 1 3GPP TR 21.905: “3G Vocabulary“. 2 3GPP TS 22.030: “Man-Machine Interface (MMI) of the User Equipment (UE)“. 3 3GPP TS 22.090: “Unstructured Supplementary Service Data (USSD) - Stage 1“. 4 3GPP TS 23.038: “Alphabets and language-speci

31、fic information“. 3 Abbreviations In addition to those below, abbreviations used in the present document are listed in TR 21.905 1. ETSI ETSI TS 123 090 V15.0.0 (2018-07)63GPP TS 23.090 version 15.0.0 Release 15AI Application Initiated MI Mobile InitiatedUSSD Unstructured Supplementary Service Data

32、4 Cross phase compatibility The Phase 1 series of GSM specifications defined the signalling protocol which may be used, but they did not specify the operation of USSD as a service. The main body of the present document assumes that the MS and all network entities comply with this phase of USSD. In o

33、rder to minimize any possible problems between a Phase 1 implementation of USSD and this phase, subclauses 5.6 and 6.6 define the additional requirements for when one or more entity complies with the Phase 1 USSD specification for network initiated and mobile initiated USSD respectively. 5 Network i

34、nitiated unstructured supplementary service 5.1 Handling of network initiated USSD The network (MSC, VLR or HLR) can at any time send a USSD operation towards an MS. This operation may be either a request (asking the MS to provide information) or a notification (requiring no information in the respo

35、nse from the MS). No prior provision of USSD is required, although provision of services which make use of USSD may be required. All USSD requests, notifications and responses (except responses to notifications) contain the USSD string, an alphabet indicator and language indicator. 5.2 Functions and

36、 information flows The following text describes the handling of network initiated USSD. Diagrammatic representations are as follows: Figure 5.1 SDL for USSD invocation (HLR, VLR, MSC); Figure 5.2 SDL for forwarding of USSD operations (VLR, MSC); Figure 5.3 SDL for MS; Figure 5.4 Information flow for

37、 successful single USSD request; Figure 5.5 Information flow for successful single USSD notification; Figure 5.6 Information flow for successful multiple USSD requests; Figure 5.7 Information flow for failed USSD request. 5.2.1 Invoking unstructured SS operation from the HLR When an application in t

38、he HLR is to send a USSD request or notification to an MS, it shall set up a transaction to the VLR where the subscriber is currently registered and send the operation to the VLR. It shall then await a response. The HLR is responsible for controlling the transaction, and shall therefore normally rel

39、ease the transaction when it receives a response from the VLR. The HLR may also release the transaction before receiving a response if necessary (e.g. if an application timer expires). If an application in the HLR needs to send further operations to the same MS as part of the same application, it ma

40、y continue to use the same transaction until all operations are completed (see figure 5.6). If a different transaction is to be used for a subsequent operation, the HLR shall release the first transaction before starting the next. If the VLR releases the transaction at any time (e.g. due to user cle

41、aring), the HLR shall inform the application and terminate the USSD operation. See subclause 5.2.4 for forwarding of an HLR invoked operation by the VLR and MSC. ETSI ETSI TS 123 090 V15.0.0 (2018-07)73GPP TS 23.090 version 15.0.0 Release 155.2.2 Invoking unstructured SS operation from the VLR When

42、an application in the VLR is to send a USSD request or notification to an MS, it shall set up a transaction to the MSC where the subscriber is currently registered and send the operation to the MSC. It shall then await a response. The VLR is responsible for controlling the transaction, and shall the

43、refore normally release the transaction when it receives a response from the MSC. The VLR may also release the transaction before receiving a response if necessary (e.g. if an application timer expires). If an application in the VLR needs to send further operations to the same MS as part of the same

44、 application, it may continue to use the same transaction until all operations are completed. If a different transaction is to be used for a subsequent operation, the VLR shall release the first transaction before starting the next. See subclause 5.2.4 for forwarding of a VLR invoked operation by th

45、e MSC. If the MSC releases the transaction at any time (e.g. due to the user clearing), the VLR shall inform the application and terminate the USSD operation. 5.2.3 Invoking unstructured SS operation from the MSC When an application in the MSC is to send a USSD request or notification to an MS, it s

46、hall set up a transaction to the MS where the subscriber is currently registered and send the operation to the MS. It shall then await a response. The MSC is responsible for controlling the transaction, and shall therefore normally release the transaction when it receives a response from the MS. The

47、 MSC may also release the transaction before receiving a response if necessary (e.g. if an application timer expires). If an application in the MSC needs to send further operations to the same MS as part of the same application, it may continue to use the same transaction until all operations are co

48、mpleted. If a different transaction is to be used for a subsequent operation, the VLR shall release the first transaction before starting the next. If the MS releases the transaction at any time (e.g. due to the user clearing), the MSC shall inform the application and terminate the USSD operation. N

49、OTE: MSC invoked USSD is only likely to be used for call related operations, where the application is controlling a call to or from the MS. 5.2.4 Forwarding USSD operations The VLR may any time receive a USSD operation from the HLR. If the subscriber can be contacted, the VLR shall set up a transaction to the MSC and forward the operation unchanged. Any further information exchange between the HLR and MSC shall be transparent to the VLR. When one transaction is released, the VLR shall release the other. The MSC may at any time receive an USSD operation from the VLR.