1、 ETSI TS 122 024 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Description of Charge Advice Information (CAI) (3GPP TS 22.024 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 122 024 V15.0.0 (2018
2、-07)13GPP TS 22.024 version 15.0.0 Release 15Reference RTS/TSGS-0122024vf00 Keywords GSM,LTE,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 Association but non lucratif enregistre la Sous-P
3、rfecture 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 versions of the present document shall not
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9、SI ETSI TS 122 024 V15.0.0 (2018-07)23GPP TS 22.024 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 essential IPRs, if any, is publicly availa
10、ble 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 ETSI Web server
11、 (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, or may become,
12、 essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reprod
13、uce 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 produced by ETSI 3rd Generation Partnership
14、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 between GSM, UMTS, 3GPP and ETSI identitie
15、s 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 3.2 of the ETSI Drafting Rules (Verbal fo
16、rms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 122 024 V15.0.0 (2018-07)33GPP TS 22.024 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Fore
17、word . 4g31 Scope 5g31.1 References 5g31.2 Definitions and abbreviations . 5g32 Introduction 6g33 Charge Advice Information 7g34 Functional operation in MS 8g34.1 Handling of the CAI elements 8g34.2 Handling of call meters 9g34.2.1 The Current Call Meter (CCM) 9g34.2.2 The Accumulated Call Meter (AC
18、M) . 9g34.2.3 The ACM Maximum Value (ACMmax) 10g34.2.4 The Price per Unit and Currency Table (PUCT) 10g34.3 Special processing 10g34.4 Interactions with SCUDIF supplementary service . 11g35 Functional operation in PLMN . 11g35.1 Outgoing calls 11g35.2 Incoming calls 11g3Annex A (informative): Change
19、 history . 13g3History 14g3ETSI ETSI TS 122 024 V15.0.0 (2018-07)43GPP TS 22.024 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 ma
20、y 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 version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2
21、 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, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporat
22、ed in the document. ETSI ETSI TS 122 024 V15.0.0 (2018-07)53GPP TS 22.024 version 15.0.0 Release 151 Scope The charging supplementary service is described in TS 22.086 2. These services are designed to supply to a mobile user sufficient information to allow a real-time estimate to be made of the bil
23、l which will eventually be levied in the home PLMN on the Mobile Station (MS) subscriber. In the case of certain MS uses, for example a mobile payphone, this estimate could be subject to further processing (e.g. to present the charges in currency, rather than units, this may include an additional ma
24、rk up). This additional processing is not described in this document in order to avoid constraining the evolution of the MS product in this area. This document gives an overall view of how this supplementary service shall operate both in the PLMN and within the MS. Text given in this document is req
25、uired to define functionality and is not intended to constrain implementation. 1.1 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 nu
26、mber, 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 versi
27、on of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 22.086: “Advice of Charge (AoC) Supplementary Services - Stage 1“. 3 3GPP TS 23.172: “Technical realization of Circuit Switched (CS) multimedia service; UDI/RDI fallback
28、 and service modification; Stage 2“. 1.2 Definitions and abbreviations In addition to the following, abbreviations used in the present document are listed in TS 21.905 1. Mark up (MU): An increase over the basic charge e.g. to provide extra revenue or to cover additional costs. Service Provider (SP)
29、: The organization through which the subscriber obtains PLMN services. This may be the network operator or possibly a separate body. Home Units (HU): The published basic telecommunication unit as published by the HPLMN. This has a published value expressed in the currency of the Home country. Local
30、PLMN (LPLMN): The LPLMN is the HPLMN or VPLMN depending on the location of the MS at the time and is the PLMN with which the MS is interworking via the radio interface. Local Units (LU): The published basic telecommunication unit as published by the LPLMN. This has a published value expressed in the
31、 currency of the local country. Price per Unit and Currency Table (PUCT): ETSI ETSI TS 122 024 V15.0.0 (2018-07)63GPP TS 22.024 version 15.0.0 Release 15The PUCT is the value of the Home unit in a currency chosen by the subscriber. The PUCT is stored in the SIM. The value of the PUCT can be set by t
32、he subscriber and may exceed the value published by the HPLMN. The PUCT value does not have any impact on the charges raised by the HPLMN. Current Call Meter (CCM): The accumulated charge as computed by the MS, expressed in terms of Home units. Accumulated Call Meter (ACM): The accumulated charge fo
33、r both the current call and all preceding calls as computed by the MS, expressed in terms of Home units. The ACM is stored in the SIM/USIM. ACM Maximum value (ACMmax): The ACMmax sets the upper limit for the ACM. The ACMmax is stored in the SIM/USIM. The value of the ACMmax can be set by the subscri
34、ber. Charging point (CHP): The time at which charging commences i.e. at the point when the called party answers or the equivalent. End of charge point (CEND): The time at which the calling, or called, party stops charging by the termination of the call or by an equivalent procedure invoked by the ne
35、twork or by failure of the radio path. Advice of Charge (AOC): The charge as computed by the MS, expressed in terms of Home Units. Segment: A charging element as defined by ITU-T, in octets (up to 64). 2 Introduction The principle of this service is that the MS shall be capable of indicating the cos
36、t of a call in home units as a basic service. This is the Advice of Charge (AOC). The ability for the MS to perform further processing on AOC is not precluded. If the subscriber wishes, the MS shall indicate the value of CCM, ACM, ACMmax in the currency she has indicated using the PUCT. At the charg
37、ing point, the MS is informed of the charging rate. The MS shall then use its independent internal clock to time the call from the charging point to the end of call i.e. the chargeable duration (CDUR) is measured by the MS. In the case of multiple calls this applies separately for each call (see sub
38、clause 4.3 l). The time taken attempting to perform call reestablishment is not included in CDUR (see subclause 4.3 m). By using the calculations described in clause 4, the MS shall be able to derive the number of home units used. Due to the independence of the calculated value, an exact one-to-one
39、relation with the bill cannot be guaranteed. This discrepancy is due to the short delays in signalling between the MS and the network, e.g. transmission of charging point and end of call signals. In deriving the present document the following principles are assumed: i) For mobile originated calls, t
40、he mobile user pays for the connection to the dialled number, as per the published tariff of the Local PLMN, plus a mark-up defined by the HPLMN to cover additional administration costs, when roaming. It is assumed that the MS subscriber will not be charged for the forwarded leg if the dialled numbe
41、r has set call forwarding. If additional charging is required for this forwarded leg, then it is assumed that such charging will be applied only to the called party. This follows current telecommunications practice. ETSI ETSI TS 122 024 V15.0.0 (2018-07)73GPP TS 22.024 version 15.0.0 Release 15ii) F
42、or mobile terminated calls, any charge set for incoming calls is that based on the tariff as published by the HPLMN. The tariff as published for the roaming extension charges is assumed to be time and date invariant. For the avoidance of doubt, this assumption does not preclude routine tariff change
43、s. iii) Charge rates for calls originating within a PLMN vary depending upon, for example, location, destination, service, time of day, type of day and any mark ups. iv) The units indicated in the advice of charge are always given in terms of Home units, the value of which is defined and published b
44、y the HPLMN, regardless of the PLMN in which they were incurred or the call direction or the type of call including supplementary service and data calls. 3 Charge Advice Information The MS is supplied with the necessary Charge Advice Information (CAI) at the charging point on a per call basis, in a
45、signalling message over the radio interface. The MS uses the CAI elements to compute the AOC value for the relevant call. Thus the signalling CAI not only provides charging information, but indicates the charging point and hence initiates the timing of the chargeable duration. The information sent t
46、o the MS from the MSC consists of seven elements as follows: Table 1: Information elements Element Dimensions Description MIN MAX RES e1 u/i Units per interval 0 819.1 0.1e2 t/i Seconds/time interval 819.1 0.1e3 - Scaling Factor 0 81.91 0.01 e4 u Unit increment 819.1 0.1e5 u/d Units per data interva
47、l 0 819.1 0.1 e6 seg/d Segments/data interval 0 8191 1 e7 t/i Initial secs/t interval 0 819.1 0.1 where: u = units; t = time; i = interval; seg = segments; d = data interval. The CAI Message need only contain those elements required for the particular situation. If elements are missing from the init
48、ial CAI message of a call, they shall be treated as zero. Element e1 - This element defines the number of units incremented per interval. It is set in terms of LPLMN units/interval to a resolution as defined in the table above under RES. Element e2 - This element defines the time interval for unitiz
49、ation, and is specified in seconds, to a resolution as defined in the table above under RES. Element e3 - This element defines the scaling factor to convert from LPLMN units to HPLMN units. It is a dimensionless multiplier given to a resolution as defined in the table above under RES. Element e4 - This element defines the number of units to be incremented on receipt of the message containing the CAI elements. It is specified in units of the LPLMN to a resolution as defined in the table above under RES. Element e5 - ETSI ETSI TS 122 024 V15.0.0 (2018-07)83GPP TS
