1、 ETSI TS 123 067 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); enhanced Multi-Level Precedence and Pre-emption Service (eMLPP); Stage 2 (3GPP TS 23.067 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTEM
2、 FOR MOBILE COMMUNICATIONSRETSI ETSI TS 123 067 V14.0.0 (2017-04)13GPP TS 23.067 version 14.0.0 Release 14Reference RTS/TSGC-0423067ve00 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 - NA
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9、egistered and owned by the GSM Association. ETSI ETSI TS 123 067 V14.0.0 (2017-04)23GPP TS 23.067 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,
10、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 updates are availa
11、ble 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 server) which are,
12、 or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by the ETSI 3rdGeneration Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM i
13、dentities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference 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
14、“, “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 forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI
15、 ETSI TS 123 067 V14.0.0 (2017-04)33GPP TS 23.067 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 Main concepts 7g35 Ge
16、neral architecture . 10g36 Compatibility issues . 10g37 Transmission 10g38 Information storage 10g38.1 Stored in the HLR. 10g38.1.1 State transition model . 11g38.1.2 Transfer of information from HLR to VLR 11g38.2 Stored in the VLR. 11g38.3 Stored in the MSC 11g38.4 Stored in the SIM . 12g38.5 Stor
17、ed in the GCR (GSM only) 12g39 Identities . 12g310 Operation and maintenance aspects . 12g311 Functions and information flow . 13g311.1 Subscription 13g311.2 Change of subscription . 13g311.3 Call set-up 13g311.3.1 Mobile originated calls . 13g311.3.1.1 Indication of priority . 13g311.3.1.2 Subscrip
18、tion checking . 13g311.3.1.3 Authentication and ciphering 13g311.3.1.4 Indication of priority to the BSC/RNC 14g311.3.1.5 Choice of radio channel 14g311.3.1.6 Indication of priority to the Mobile Station . 14g311.3.2 Mobile terminated calls 14g311.3.2.1 Indication of priority . 14g311.3.2.2 Indicati
19、on of priority to the BSC/RNC 15g311.3.2.3 Authentication and ciphering 15g311.3.2.4 Termination with called subscriber in idle mode or group receive mode . 15g311.3.2.5 Termination with called subscriber in dedicated mode . 15g311.3.3 Voice group call or voice broadcast call (GSM only) . 16g311.3.3
20、.1 Indication of priority to the related MSC 16g311.3.3.2 Authentication and ciphering 16g311.3.3.3 Indication of priority to the called Mobile Stations . 16g311.4 Pre-emption 16g311.4.1 Choice of communication to pre-empt 16g311.4.2 Release procedures . 16g311.5 Pre-emption at handover/relocation .
21、 16g311.6 Overview of call related signalling . 16g3ETSI ETSI TS 123 067 V14.0.0 (2017-04)43GPP TS 23.067 version 14.0.0 Release 1411.7 Overview of call independent signalling 24g311.7.1 Registration . 24g311.7.2 Interrogation . 24g3Annex A (informative): Change history . 25g3History 26g3ETSI ETSI T
22、S 123 067 V14.0.0 (2017-04)53GPP TS 23.067 version 14.0.0 Release 14Foreword 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 a
23、pproval. 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 for approval;
24、 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 document. ETSI ETSI T
25、S 123 067 V14.0.0 (2017-04)63GPP TS 23.067 version 14.0.0 Release 141 Scope The present document specifies the stage 2 description of the enhanced Multi-Level Precedence and Pre-emption Service (eMLPP) which provides different call priorities in combination with fast call set-up and pre-emption for
26、different applications according to 3GPP TS 22.067. 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, version number, etc.)
27、 or non-specific. - For a specific reference, subsequent revisions do not apply. - For a non-specific reference, the latest version applies. 1 3GPP TR 21.905: “3G Vocabulary“. 2 3GPP TS 22.101: “UMTS Service Principles“. 3 3GPP TS 22.067: “enhanced Multi-Level Precedence and Pre-emption service (eML
28、PP) - Stage 1“. 4 3GPP TS 23.011:“Technical realization of supplementary services“. 5 3GPP TS 43.068: “Voice Group Call Service (VGCS) - Stage 2“. 6 3GPP TS 43.069: “Voice Broadcast Service (VBS) - Stage 2“. 7 3GPP TS 48.008: “Mobile Switching Centre - Base Station System (MSC - BSS) interface Layer
29、 3 specification“. 8 ITU-T Recommendation Q.85: “Stage 2 description for community of interest supplementary services (clause 3: Multi-Level Precedence and Pre-emption MLPP)“. 9 ITU-T Recommendation Q.735: “Stage 3 description for community of interest supplementary services using SS No. 7 (clause 3
30、: Multi-Level Precedence and Pre-emption (MLPP)“. 10 Void 11 3GPP TS 25,331: “RRC Protocol Specification“. 12 3GPP TS 25.413: “UTRAN Iu Interface RANAP Signalling“. 13 3GPP TS 24.008: “Core Network Protocols - Stage 3“. 14 3GPP TS 23.107: “Quality of Service (QoS) concept and architecture“. 15 3GPP
31、TS 29.002: “Mobile Application Part (MAP) specification“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TS 22.067 and the following apply: ETSI ETSI TS 123 067 V14.0.0 (2017-04)73GPP TS 23.067 version 14.0.0 Release
32、14resource pre-emption: the termination of a call of a low priority user such that resources can be made available for a precedence call of higher priority. Resource pre-emption could be initiation resource pre-emption or handover resource pre-emption called-party pre-emption: termination of a call
33、to a particular user when a higher priority call is directed towards that specific user. Called party pre-emption is decided by the Mobile Station. In case of point-to-point calls, this shall be performed by Call Waiting with automatic acceptance of the waiting call by the Mobile Station compatible
34、Mobile Station: mobile stations which support eMLPP and therefore have precedence and pre-emption capabilities non-compatible Mobile Station: mobile stations which do not support eMLPP SIM: subscriber Identity Module. This specification makes no distinction between SIM and USIM. Handover: This speci
35、fication uses the term handover for GSM and the same term meaning relocation in UMTS. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in 3G TR 21.905 apply. 4 Main concepts The enhanced Multi-Level Precedence and Pre-emption service (eMLPP) provides different leve
36、ls of precedence for call set-up and for call continuity in case of handover. There are seven priority levels which are defined in 3GPP TS 22.067. The highest level (A) is reserved for network internal use. The second highest level (B) may be used for network internal use or, optionally, depending o
37、n regional requirements, for subscription. These two levels (A and B) may only be used locally, i.e. in the domain of one MSC. The other five priority levels are offered for subscription and may be applied globally, e.g. on inter switch trunks, if supported by all related network elements, and also
38、for interworking with ISDN networks providing the MLPP service. The seven priority levels are defined as follows: A (highest, for network internal use) B (for network internal use or, optionally, for subscription) 0 (for subscription) 1 (for subscription) 2 (for subscription) 3 (for subscription) 4
39、(lowest, for subscription). Levels A and B shall be mapped to level 0 for priority treatment outside of the MSC area in which they are applied. As a network specific configuration, the ability to pre-empt other calls of lower priority and the application of fast call set-up procedures can be assigne
40、d to each priority level. An example for an eMLPP configuration is given in 3GPP TS 22.067. NOTE 1: The present specification defines the concepts for handling of priorities in the network including the indication whether pre-emption or fast call set-up procedures are to be applied. Note that the ca
41、ll set-up procedures themselves are specified in the corresponding stage 2 descriptions of the services where they are to be used. There is presently only a requirement for VBS and VGCS (3GPP TS 43.069 and 3GPP TS 43.068, respectively). ETSI ETSI TS 123 067 V14.0.0 (2017-04)83GPP TS 23.067 version 1
42、4.0.0 Release 14NOTE 2: The network operator has to assure that the particular eMLPP configuration he applies and the subscriptions he issues are co-ordinated with the network planning (especially for blocking) and the implementation options applied (e.g. the use of OACSU) in order to guarantee the
43、service performance for the subscriber. Considering aspects of priority handling, the following issues can be considered for each call: a) contention during the initial random access (no specific definitions apply for eMLPP. Delays due to access collision have to be managed by a corresponding planni
44、ng of the network resources); b) in GSM, contention in gaining radio resources during the call set-up phase and during handover (this item relates to the assignment of SDCCH and TCH for which queuing and pre-emption mechanisms are applied for eMLPP); in UMTS, contention in gaining radio resources du
45、ring the call set-up phase and during relocation (this item relates to the assignment of DCCH and DTCH for which queuing and pre-emption mechanisms are applied for eMLPP); A pre-emption might already be performed as a network option on the basis of the establishment cause if a network specific eMLPP
46、 configuration assigns a certain priority level to a particular establishment cause. c) contention in gaining terrestrial resources inside the GSM or UMTS network (this item relates to the assignment of terrestrial channels between the GSM or UMTS network nodes. Priority actions shall be performed o
47、n basis of the MLPP service implementations. The eMLPP priority levels A and B shall be mapped to the MLPP priority level 0. No further specific definitions apply for eMLPP); d) contention in gaining terrestrial resources in external networks (this item relates to interworking with external networks
48、 which shall be performed on basis of the MLPP service if provided in the related external networks.); e) application of different call set-up procedures in relation to the priority levels and the network specific configuration (three classes of set-up performance are defined in 3GPP TS 22.067, one
49、very fast class for VBS or VGCS emergency call services, one class for fast but normal set-up times and one class allowing some delay in the set-up. The application of the corresponding procedures shall be decided by the network on the basis of the requested priority level); f) automatic answering of calls if the incoming call exceeds a defined priority level (if the MS is in idle mode), or called party pre-emption (if the called subscriber is engaged in communication of a lower priority); g) the means by which the called user is informed of prio
