1、 ETSI TS 123 135 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 123 135 V15.0.0 (2018-07)13GPP TS 23.135 version 15.0.0 Release 15Reference RTS/TSGC-042
2、3135vf00 Keywords 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-Prfecture de Grasse (06) N 7803/88 Important notice The present document
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7、 without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTETMare trademarks o
8、f ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSMand the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 123 135 V15.0.0 (2018-07)23GPP TS 23.135 version 15.0.0 Rele
9、ase 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 available for ETSI members and non-members, and can be found in ETSI SR 000 3
10、14: “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 (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigat
11、ion, 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, essential to the present document. Trademarks The present document may
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13、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 Project (3GPP). The present document may refer to technical specificati
14、ons 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 identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal ver
15、bs 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 forms for the expression of provisions). “must“ and “must not“ are NOT al
16、lowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 123 135 V15.0.0 (2018-07)33GPP TS 23.135 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 5g32 References 5g33 Definitions and abbreviations .
17、6g33.1 Definitions 6g33.2 Abbreviations . 6g34 Descriptions 6g34.1 Handling of Multicall . 6g34.1.1 Provision . 6g34.1.2 Withdrawal . 6g34.1.3 Registration . 6g34.1.4 Erasure 7g34.1.5 Activation . 7g34.1.6 Deactivation 8g34.1.7 Interrogation . 8g34.2 Call related procedures . 10g34.2.1 MO call . 10g
18、34.2.2 MT call . 10g34.3 Messages and their contents . 12g34.3.1 Messages between MS and MSC 12g34.3.2 Messages on B interface (MSC-VLR) 13g34.3.2.1 Send Info For Outgoing Call . 13g34.3.2.2 Send Info For Outgoing Call negative response 13g34.3.2.3 Send Info For Incoming Call . 13g34.3.2.4 Send Info
19、 For Incoming Call ack 13g34.3.2.5 Send Info For Incoming Call negative response . 13g34.3.2.6 Complete Call . 13g34.3.2.7 Complete Call ack . 13g34.3.2.8 Page MS 13g34.3.2.9 Page MS negative response . 14g34.3.2.10 Process Access Request 14g34.3.2.11 Process Access Request ack 14g34.3.2.12 Process
20、Access Request negative response . 14g34.3.2.13 Search For MS 14g34.3.2.14 Search For MS ack 14g34.3.2.15 Search For MS negative response . 14g35 Network entity functions 15g35.1 General . 15g35.2 MO call . 15g35.2.1 Functional requirements of serving MSC . 15g35.2.2 Functional requirements of VLR 1
21、6g35.3 MT call . 17g35.3.1 Functional requirements of serving MSC . 17g35.3.2 Functional requirements of VLR 22g36 Interaction with telecommunication services . 23g36.1 Speech 23g36.2 Short message service 23g36.3 Facsimile service 23g36.4 Data circuit asynchronous 23g36.5 Data circuit synchronous 2
22、3g3ETSI ETSI TS 123 135 V15.0.0 (2018-07)43GPP TS 23.135 version 15.0.0 Release 156.6 Void 23g36.7 GPRS 23g37 Interaction with other supplementary services . 23g37.1 Line Identification services 23g37.2 Call forwarding unconditional (CFU) 23g37.3 Call forward on busy (CFB) . 23g37.4 Call forwarding
23、on no reply (CFNRy) . 23g37.5 Call forwarding on MS not reachable (CFNRc) . 24g37.6 Call Hold (CH) . 24g37.7 Call Waiting (CW) . 24g37.8 Multiparty service (MPTY) 24g37.9 Closed user group (CUG) . 24g37.10 Advice Of Charge (AoC) . 24g37.11 Call Barring services 24g37.12 Explicit call transfer (ECT)
24、24g37.13 Call Deflection (CD) 24g37.14 Completion of calls to busy subscriber (CCBS) . 24g38 Interaction with network features . 24g38.1 Customised Applications for Mobile network Enhanced Logic (CAMEL) . 24g38.2 Support of Optimal Routeing (SOR) 24g38.3 Operator Determined Barring (ODB) . 24g39 Inf
25、ormation stored in the HLR . 25g310 State transition model . 25g311 Transfer of information from HLR to VLR . 25g312 Information stored in VLR . 25g313 Handover 26g3Annex A (informative): Examples . 27g3Annex B (informative): Change history . 31g3History 32g3ETSI ETSI TS 123 135 V15.0.0 (2018-07)53G
26、PP TS 23.135 version 15.0.0 Release 15Foreword This Technical Specification (TS) has been produced by the 3rdGeneration Partnership Project (3GPP). The present document gives the stage 2 description of the Multicall service within the 3GPP system. The contents of the present document are subject to
27、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 version number as follows: Version x.y.z where: x the first digit:
28、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, corrections, updates, etc. z the third digit is incremented when editor
29、ial only changes have been incorporated in the document. 1 Scope The present document gives the stage 2 description of the Multicall supplementary service. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. -
30、References are either specific (identified 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. 1 3GPP TR 21.905: “3GPP Vocabulary“. 2 3GPP TS 22.100:
31、“UMTS Phase 1“. 3 3GPP TS 22.105: “Services Technical realization“. 8 3GPP TS 23.083: “Call Waiting (CW) and Call Hold (HOLD) Supplementary Service - Stage 2“. 9 3GPP TS 24.008: “Mobile radio interface layer 3 specification Core Network Protocol Stage 3“. ETSI ETSI TS 123 135 V15.0.0 (2018-07)63GPP
32、TS 23.135 version 15.0.0 Release 153 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TS 22.135 and the following apply. Speech Call: speech call means one of TS11 (Telephony), TS12 (Emergency call), TS61 (Alternate speech and
33、 facsimile group 3). 3.2 Abbreviations Abbreviations used in the present document are listed in TR 21.905. 4 Descriptions 4.1 Handling of Multicall 4.1.1 Provision No special signalling procedures apply. 4.1.2 Withdrawal No special signalling procedures apply. 4.1.3 Registration The information flow
34、 for registration is shown in figure 1. The registration process is shown in figure 2. MS MSC VLR HLR Register Multicall Register Multicall Register Multicall ACK ACK Release complete (Nbr_User) (Nbr_User) (Nbr_User) ISD (SS-Code = MC, Nbr_User) (SS-status, Nbr_User) (SS-status, Nbr_User) (SS-status
35、, Nbr_User) Figure 1: Registration of Multicall ETSI ETSI TS 123 135 V15.0.0 (2018-07)73GPP TS 23.135 version 15.0.0 Release 15Multicall Registrationprocess in HLRProcess Register_Multicall_HLR RM_HLR1(1)IdleRegisterMulticallMulticallprovisioned?Nbr_UserProvided?0 1Negative response: =Multicall not
36、provisionedResult: =Fail Result:= PassTotal number of bearers in use = Nbr_UserNegative response: =Nbr_User exceededResult:= PassNoYesNoYesYesNoETSI ETSI TS 123 135 V15.0.0 (2018-07)183GPP TS 23.135 version 15.0.0 Release 15This procedure is called when the MSC receives a Page MS message or a Search
37、 For MS message from the VLR. The maximum number of bearers (Nbr) indicates the minimum value of Nbr_User, Nbr_SN and Nbr_UE. After handover to another MSC is completed, Nbr_SN, as defined for the target MSC, shall overwrite the previous Nbr_SN. “Call in Setup“ means that the MS is engaged in at lea
38、st one call that has not reached the established phase (called party answer). The test “Call waiting“ takes the “Yes“ exit if a waiting call has been offered to the subscriber but the outcome of offering the call has not been determined. Figure 11: Procedure Establish_Terminating_TCH_Multicall. This
39、 procedure is called when the MSC receives a Call Confirmed or a Connect message from the MS. If the MS indicates “No bearer“ as the value of the Stream Identifier in the Call Confirmed message the test “Bearer allocation pending“ takes the “Yes“ exit. Figure 12: Procedure MC_TCH_Check This procedur
40、e is called when the MSC needs to establish a terminating TCH. ETSI ETSI TS 123 135 V15.0.0 (2018-07)193GPP TS 23.135 version 15.0.0 Release 15Procedure to determinethe way to offer the calland whether the MS is NDUBProcedure Check_MT_Multicall_MSC CMM_MSC1(1)Nbr_User indicated?Result :=Not provisio
41、nedCurrent number of terminatingcalls Ncs_MTNew callis speech?Result :=NDUBSpeech callexists?Current number of bearers in use NbrNOTE: Each call in set-up iscounted as one bearer.Speech callis in Setup?All calls arein Setup?Waiting callexists?Result :=NDUBResult :=More calls possibleResult :=NDUBRes
42、ult :=OfferedNoYesYesNoYesNoNoYesNoYesNoYesNoYesYesNoFigure 10: Procedure Check_MT_Multicall_MSC ETSI ETSI TS 123 135 V15.0.0 (2018-07)203GPP TS 23.135 version 15.0.0 Release 15Figure 11: Procedure Establish_Terminating_TCH_Multicall Procedure to allocate a TCHafter checkingMulticall limitationProce
43、dure Establish_Terminating_TCH_Multicall ETTM1(1)Bearer allocationpending?MC_TCH_CheckResultAllocatechannelWait_For_Allocation_CompleteReleasetransactionResult:=FailAllocationfailureReleasetransactionAllocationcompleteResult:=PassReleaseReleasetransactionResult:=AbortedResult:=FailResult:=AbortedRes
44、ult:=PassResult:=RejectedResult:=PassNoAllocate Fail Aborted PassRejectYesETSI ETSI TS 123 135 V15.0.0 (2018-07)213GPP TS 23.135 version 15.0.0 Release 15Figure 12: Procedure MC_TCH_CheckProcedure to allocate TCHafter checking Multicall limitationProcedure MC_TCH_Check MTC1(1)New bearerrequested?Nbr
45、reached?TCH_Check See TS 23.018ResultResult:=RejectResult:=AbortedResult :=FailResult :=AllocateResult :=PassYesNoNoYesReject Aborted Fail Allocate Use existingETSI ETSI TS 123 135 V15.0.0 (2018-07)223GPP TS 23.135 version 15.0.0 Release 155.3.2 Functional requirements of VLR Figure 13: Procedure Ge
46、t_CW_Subscription_Info_Multicall_VLR. This procedure is called when the VLR receives a Page MS negative response message or a Search For MS negative response message with the negative response IE set to “Busy (More Calls Possible)“. Figure 13: Procedure Get_CW_Subscription_Info_Multicall_VLR Procedu
47、re in the VLR to retrieve subscription information for the Call Waiting serviceProcedure Get_CW_Subscription_Info_Multicall_VLR CWIM_VLR1(1)Signals to/from the rightare to/from the processMAF013 (TS 23.083)BS :=first BS1initiatehandlingof CWWait_For_CW_InfoFrom MSC AbortProcesscallwaitingIndicator=C
48、W available?Indicator :=CW availableNext BSexists?BS :=next BSIndicator :=CW not available1YesNoYesNoETSI ETSI TS 123 135 V15.0.0 (2018-07)233GPP TS 23.135 version 15.0.0 Release 156 Interaction with telecommunication services 6.1 Speech The Multicall supplementary service does not provide multiple
49、traffic channels for speech calls. Refer to Procedure Check_OG_Multicall_MSC and Procedure Check_MT_Multicall_MSC. If Nbr_UE is greater than Nbr_SN, the mobile station may initiate an Emergency call even if Nbr_SN has been reached. When the network receives an Emergency call Setup message from the mobile station: - if Nbr_SN has not been reached, the network shall accept it regardless of Nbr_SB or Nbr_User; - if Nbr_SN has been reached, the network shall reject the emergency call setup attempt. The MS shall release one or more existing calls and it shall re-initiat
