1、 ETSI TS 123 284 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Local Call Local Switch (LCLS); Stage 2 (3GPP TS 23.284 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI E
2、TSI TS 123 284 V14.0.0 (2017-04)13GPP TS 23.284 version 14.0.0 Release 14Reference RTS/TSGC-0423284ve00 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 Association but non lucra
3、tif 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 versions of the pr
4、esent document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network
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6、 the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as
7、 authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. All rights reserved. DECTT
8、M, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM As
9、sociation. ETSI ETSI TS 123 284 V14.0.0 (2017-04)23GPP TS 23.284 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, if any, is publicly available for
10、 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 (https
11、:/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, essent
12、ial to the present document. Foreword This Technical Specification (TS) has been produced 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 interpret
13、ed 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“, “should not“, “may“, “need not“,
14、“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 ETSI TS 123 284 V14.0.0 (2017-04)33
15、GPP TS 23.284 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 11g31 Scope 12g32 References 12g33 Definitions, symbols and abbreviations . 13g33.1 Definitions 13g33.2 Symbols 13g33.3 Abbreviations . 13g34 Main Concepts 13g34.1 Gene
16、ral . 13g34.2 LCLS Negotiation 14g34.2.1 General concept of LCLS negotiation 14g34.2.2 (void) 19g34.2.3 (void) 19g34.2.4 General concept of LCLS Configuration Preference Modification 19g34.3 LCLS Call Leg Correlation 20g34.3.1 General 20g34.3.2 Optional Intra-Network Call Detection. 21g34.3.2.1 Gene
17、ral 21g34.3.2.2 Intra-Network Call Detection within the tMSC server 21g34.3.2.3 Intra-Network Call Detection within the tBSS 21g34.3.3 Optional Intra-BSS Call Detection . 21g34.3.3.1 General 21g34.3.3.2 Intra-BSS Call Detection within the tMSC server 21g34.3.3.3 Intra-BSS Call Detection within the t
18、BSS 22g34.4 LCLS Connection Control 22g34.5 LCLS Status Reporting 23g34.5.1 LCLS BSS Status between BSS and Core Network . 23g34.5.2 LCLS Status within the Core Network . 23g34.6 User Plane when LCLS is Active . 24g34.6.1 General 24g34.6.2 LCLS Configuration . 24g35 General Circuit Switched Core Net
19、work Domain Architecture . 24g36 Call Establishment 25g36.1 Basic Mobile Originating Call 25g36.1.1 Basic Mobile Originating Call with BICC based CS core network 25g36.1.1.1 General 25g36.1.1.2 Initial Addressing 25g36.1.1.3 Access Bearer Assignment 25g36.1.1.3.1 Assignment performed after LCLS Nego
20、tiation through Core Network . 25g36.1.1.3.2 Assignment performed before LCLS Negotiation . 25g36.1.1.3.3 oBSS behavior . 25g36.1.1.4 Backward LCLS Negotiation 26g36.1.1.5 LCLS Through-Connection 26g36.1.1.6 LCLS Status Reporting . 26g36.1.1.7 MGW/User plane 26g36.1.2 Basic Mobile Originating Call w
21、ith SIP-I based CS core network . 27g36.1.2.1 General 27g36.1.2.2 Initial Addressing 27g36.1.2.3 Access Bearer Assignment 27g3ETSI ETSI TS 123 284 V14.0.0 (2017-04)43GPP TS 23.284 version 14.0.0 Release 146.1.2.4 Backward LCLS Negotiation 27g36.1.2.5 LCLS Through-Connection 27g36.1.2.6 LCLS Status R
22、eporting . 27g36.1.2.7 MGW/User plane 27g36.2 Basic Mobile Terminating Call 27g36.2.1 Basic Mobile Terminating Call with BICC based CS core network . 27g36.2.1.1 General 27g36.2.1.2 Actions at Intermediate Nodes (including GMSC) . 28g36.2.1.2.1 Initial Addressing 28g36.2.1.2.2 Backward LCLS Negotiat
23、ion 28g36.2.1.2.3 Through-Connection 28g36.2.1.2.4 LCLS Status Reporting within CN 28g36.2.1.2.5 MGW/User plane. 28g36.2.1.3 Actions at Terminating Call side . 29g36.2.1.3.1 Initial Addressing 29g36.2.1.3.2 Backward LCLS Negotiation 29g36.2.1.3.3 Access Bearer Assignment 29g36.2.1.3.4 LCLS Through-C
24、onnection . 29g36.2.1.3.5 LCLS Status Reporting 30g36.2.1.3.6 MGW/User plane. 30g36.2.2 Basic Mobile Terminating Call with SIP-I based CS core network 30g36.2.2.1 General 30g36.2.2.2 Actions at Intermediate Nodes (including GMSC) . 30g36.2.2.2.1 Initial Addressing 30g36.2.2.2.2 Backward LCLS Negotia
25、tion 30g36.2.2.2.3 Through-Connection 30g36.2.2.2.4 LCLS Status Reporting within CN 30g36.2.2.2.5 MGW/User plane. 30g36.2.2.3 Actions at Terminating Call side . 30g36.2.2.3.1 Initial Addressing 30g36.2.2.3.2 Backward LCLS Negotiation 30g36.2.2.3.3 Access Bearer Assignment 31g36.2.2.3.4 LCLS Through-
26、Connection . 31g36.2.2.3.5 LCLS Status Reporting 31g36.2.2.3.6 MGW/User plane. 31g36.3 Basic Mobile to Mobile End to End Call Examples . 31g36.3.1 Basic Call Establishment Connection Model for LCLS . 31g36.3.2 LCLS established, Basic Call Example with BICC based CS core network, forward bearer estab
27、lishment 32g36.3.3 LCLS not established, Basic Call Example with BICC based CS core network 37g36.3.4 LCLS established, Basic Call Example with SIP-I based CS core network . 39g36.3.5 LCLS established, Basic Call Example with BICC based CS core network, backward bearer establishment 45g37 Call Clear
28、ing and LCLS Break/Re-establishment 48g37.1 Call Clearing 48g37.2 LCLS Break 48g37.2.1 MSC server Initiated . 48g37.2.1.1 Principles . 48g37.2.1.2 MSC server actions . 49g37.2.1.3 GMSC server actions 49g37.2.1.4 BSS actions . 49g37.2.2 BSS Initiated . 50g37.2.2.1 Principles . 50g37.2.2.2 Immediate L
29、CLS break . 50g37.2.2.2.1 BSS actions 50g37.2.2.2.2 MSC server actions 50g37.2.2.2.3 GMSC server actions . 50g37.2.2.3 BSS Requesting LCLS Release from Core Network 50g37.2.2.3.1 BSS actions 50g37.2.2.3.2 MSC server actions 51g37.2.2.3.3 GMSC server actions . 51g3ETSI ETSI TS 123 284 V14.0.0 (2017-0
30、4)53GPP TS 23.284 version 14.0.0 Release 147.2.3 Intermediate Node/GMSC Server Initiated . 51g37.2.3.1 Principles . 51g37.2.3.2 Intermediate Node/GMSC server actions 51g37.2.3.3 MSC server actions . 51g37.2.3.4 BSS actions . 52g37.2.4 LCLS Break Example Call Flows . 52g37.2.4.1 LCLS Break Connection
31、 Model for LCLS . 52g37.2.4.2 MSC server Initiated . 53g37.2.4.3 BSS Initiated, Immediate LCLS Break . 54g37.2.4.4 BSS Initiated, LCLS Break requested from Core Network. 55g37.2.4.5 Intermediate Node/GMSC Server Initiated . 57g37.2.4.6 MSC server Initiated when Access Side Termination is isolated in
32、 MGW . 59g37.3 LCLS Re-establishment . 60g37.3.1 MSC server Initiated . 60g37.3.1.1 Principles . 60g37.3.1.2 MSC server actions . 60g37.3.1.2.1 LCLS re-establishment to the network side . 60g37.3.1.2.2 LCLS re-establishment to the BSS 60g37.3.1.2.3 LCLS Status update to the network side 60g37.3.1.3
33、GMSC server actions 60g37.3.1.4 BSS actions . 61g37.3.2 BSS Initiated . 61g37.3.3 Intermediate Node / GMSC Server Initiated . 61g37.3.3.1 Principles . 61g37.3.3.2 Intermediate Node / GMSC server actions 61g37.3.3.3 MSC server actions . 61g37.3.3.4 BSS actions . 62g37.3.4 LCLS Re-establishment Exampl
34、e Call Flows. 62g37.3.4.1 LCLS Re-establishment Connection Model for LCLS . 62g37.3.4.2 MSC server Initiated Example Call Flow . 62g37.3.4.3 Intermediate Node / GMSC Server Initiated Example Call Flow . 64g37.3.4.4 MSC server Initiated when Access Side Termination is isolated in MGW . 65g38 Handover
35、/Relocation 66g38.1 UMTS to UMTS . 66g38.2 UMTS to GSM . 67g38.2.1 General 67g38.2.2 Intra-MSC UMTS to GSM Handover . 67g38.2.2.1 Intra-MSC UMTS to GSM Handover that establishes Local Switching . 67g38.2.2.1.1 General 67g38.2.2.1.2 Relocation Required 67g38.2.2.1.3 Handover Request Acknowledge 67g38
36、.2.2.1.4 Handover Complete . 67g38.2.2.1.5 Example . 67g38.2.2.1.5.1 Connection Model 67g38.2.2.1.5.2 Basic Sequence for Intra-MSC UMTS to GSM Handover that establishes Local Switching 70g38.2.2.2 Intra-MSC UMTS to GSM Handover that does not establish LCLS 71g38.2.3 Inter-MSC UMTS to GSM Handover .
37、71g38.2.3.1 Inter-MSC UMTS to GSM Handover that establishes Local Switching . 71g38.2.3.1.1 General 71g38.2.3.1.2 MSC-1 / MGW-1 . 71g38.2.3.1.2.1 Relocation Required. 71g38.2.3.1.2.1 Relocation Required. 71g38.2.3.1.2.2 Handover Request Acknowledge . 71g38.2.3.1.2.3 Bearer establishment between MGW-
38、1 and Target MGW 72g38.2.3.1.2.4 MGW Flow Direction Control . 72g38.2.3.1.2.5 Relocation Command/Handover Detect 72g38.2.3.1.2.6 Handover Complete . 72g38.2.3.1.3 Target MSC Server / Target MGW . 72g38.2.3.1.3.1 Prepare Handover Request message and MGW selection . 72g38.2.3.1.3.2 Handover Request Ac
39、knowledge . 72g38.2.3.1.3.3 Bearer establishment towards Target BSS . 72g3ETSI ETSI TS 123 284 V14.0.0 (2017-04)63GPP TS 23.284 version 14.0.0 Release 148.2.3.1.3.4 Bearer establishment between MGW-1 and Target MGW 72g38.2.3.1.3.5 Handover Complete . 72g38.2.3.1.4 Example of Inter-MSC UMTS to GSM Ha
40、ndover that establishes Local Switching 73g38.2.3.1.4.1 Connection Model 73g38.2.3.1.4.2 Basic Sequence for Inter-MSC UMTS to GSM Handover that establishes Local Switching 74g38.2.3.2 Inter-MSC UMTS to GSM Handover that does not establish Local Switching 78g38.3 GSM to UMTS . 78g38.3.1 Intra-MSC GSM
41、 to UMTS Relocation . 78g38.3.1.1 General 78g38.3.1.2 Handover Required . 78g38.3.1.3 Iu Relocation Request Acknowledge 78g38.3.1.4 Handover Command/Iu Relocation Detect . 78g38.3.1.5 Iu Relocation Complete . 79g38.3.1.6 Example 79g38.3.1.6.1 Connection Model . 79g38.3.2 Inter-MSC GSM to UMTS Reloca
42、tion . 85g38.3.2.1 General 85g38.3.2.2 MSC-1 / MGW-1 85g38.3.2.2.1 Handover Required 85g38.3.2.2.2 Iu Relocation Request Acknowledge. 85g38.3.2.2.3 Bearer establishment between MGW-1 and Target MGW 85g38.3.2.2.4 MGW Flow Direction Control 85g38.3.2.2.5 Handover Command/Iu Relocation Detect 85g38.3.2
43、.2.6 Iu Relocation Complete. 85g38.3.2.3 Target MSC Server / Target MGW . 86g38.3.2.3.1 Prepare Handover Request message and MGW selection . 86g38.3.2.3.2 Bearer establishment towards Target RNC . 86g38.3.2.3.3 Bearer establishment between MGW-1 and Target MGW 86g38.3.2.4 Example of Inter-MSC GSM to
44、 UMTS Relocation 86g38.3.2.4.1 Connection Model . 86g38.3.2.4.2 Basic Sequence for Inter-MSC handover that breaks Local Switching . 89g38.4 GSM to GSM . 93g38.4.1 Intra-MSC Inter-BSS GSM to GSM Handover 93g38.4.1.1 Intra-MSC Inter-BSS GSM to GSM Handover that breaks Local Switching . 93g38.4.1.1.1 G
45、eneral 93g38.4.1.1.2 Handover Required 93g38.4.1.1.3 MGW Flow Direction Control 93g38.4.1.1.4 Handover Request Acknowledge 94g38.4.1.1.5 Handover Command/Handover Detect 94g38.4.1.1.6 Handover Complete . 94g38.4.1.1.7 Example . 94g38.4.1.1.7.1 Connection Model 94g38.4.1.1.7.2 Basic Sequence for Inte
46、r-BSS Handover that breaks Local Switching 97g38.4.1.2 Intra-MSC Inter-BSS GSM to GSM Handovers that establishes Local Switching . 99g38.4.1.2.1 General 99g38.4.1.2.2 Handover Required 99g38.4.1.2.3 Bearer establishment towards Target BSS 99g38.4.1.2.4 MGW Flow Direction Control 99g38.4.1.2.5 Handov
47、er Request Acknowledge 99g38.4.1.2.6 Handover Command/Handover Detect 100g38.4.1.2.7 Handover Complete . 100g38.4.1.2.8 Example . 100g38.4.1.2.8.1 Connection Model 100g38.4.1.2.8.2 Basic Sequence for Inter-BSS Handover that establishes Local Switching . 102g38.4.2 Inter-MSC GSM to GSM Handover . 104
48、g38.4.2.1 Inter-MSC GSM to GSM Handover that breaks Local Switching 104g38.4.2.1.1 General 104g38.4.2.1.2 MSC-1 / MGW-1 . 104g38.4.2.1.2.1 Handover Required 104g38.4.2.1.2.2 Handover Request Acknowledge . 104g38.4.2.1.2.3 Bearer establishment between MGW-1 and Target MGW 105g38.4.2.1.2.4 MGW Flow Di
49、rection Control . 105g3ETSI ETSI TS 123 284 V14.0.0 (2017-04)73GPP TS 23.284 version 14.0.0 Release 148.4.2.1.2.5 Handover Command/Handover Detect 105g38.4.2.1.2.6 Handover Complete . 105g38.4.2.1.3 Target MSC Server / Target MGW . 106g38.4.2.1.3.1 Prepare Handover Request message and MGW selection . 106g38.4.2.1.3.2 Handover Request Acknowledge . 106g38.4.2.1.3.3 Bearer establishment towards Target BSS . 106g38.4.2.1.3.4 Bearer establishment between MGW-1 and Target MGW 106g38.4.2.1.3.5 LCLS Negotiation in Initial Address message . 106g38.4.2.1.4 Example of Inter-MSC Handove
