ETSI TS 123 284-2018 Digital cellular telecommunications system (Phase 2+) (GSM) Universal Mobile Telecommunications System (UMTS) Local Call Local Switch (LCLS) Stage 2 (V15 0 0 3.pdf

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1、 ETSI TS 123 284 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Local Call Local Switch (LCLS); Stage 2 (3GPP TS 23.284 version 15.0.0 Release 15) TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI E

2、TSI TS 123 284 V15.0.0 (2018-07)13GPP TS 23.284 version 15.0.0 Release 15Reference RTS/TSGC-0423284vf00 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

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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. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are

8、 trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTETMare trademarks of 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

9、 the GSM Association. ETSI ETSI TS 123 284 V15.0.0 (2018-07)23GPP TS 23.284 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

10、 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 availabl

11、e 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, o

12、r may be, or may become, 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 n

13、o 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 produced by ETSI 3rd

14、 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 between GSM, UMTS,

15、 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 3.2 of the ETSI D

16、rafting 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 V15.0.0 (2018-07)33GPP TS 23.284 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal v

17、erbs 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 General . 13g34.2 LCLS Negotiation 14g34.2.1 General concept of LCLS negotiation 14g34.2.2 (void) 19g34.2

18、.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 General 21g34.3.2.2 Intra-Network Call Detection within the tMSC server 21g34.3.2.3 Intra-Network Call De

19、tection 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 tBSS 22g34.4 LCLS Connection Control 22g34.5 LCLS Status Reporting 23g34.5.1 LCLS BSS Status between B

20、SS 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 Network Domain Architecture . 24g36 Call Establishment 25g36.1 Basic Mobile Originating Call 25g36.1.1 B

21、asic 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 Negotiation through Core Network . 25g36.1.1.3.2 Assignment performed before LCLS Negotiation . 25g36.1.1

22、.3.3 oBSS behavior . 25g36.1.1.4 Backward LCLS Negotiation 25g36.1.1.5 LCLS Through-Connection 26g36.1.1.6 LCLS Status Reporting . 26g36.1.1.7 MGW/User plane 26g36.1.2 Basic Mobile Originating Call with SIP-I based CS core network . 26g36.1.2.1 General 26g36.1.2.2 Initial Addressing 26g36.1.2.3 Acce

23、ss Bearer Assignment 27g36.1.2.4 Backward LCLS Negotiation 27g3ETSI ETSI TS 123 284 V15.0.0 (2018-07)43GPP TS 23.284 version 15.0.0 Release 156.1.2.5 LCLS Through-Connection 27g36.1.2.6 LCLS Status Reporting . 27g36.1.2.7 MGW/User plane 27g36.2 Basic Mobile Terminating Call 27g36.2.1 Basic Mobile Te

24、rminating Call with BICC based CS core network . 27g36.2.1.1 General 27g36.2.1.2 Actions at Intermediate Nodes (including GMSC) . 27g36.2.1.2.1 Initial Addressing 27g36.2.1.2.2 Backward LCLS Negotiation 27g36.2.1.2.3 Through-Connection 28g36.2.1.2.4 LCLS Status Reporting within CN 28g36.2.1.2.5 MGW/

25、User plane. 28g36.2.1.3 Actions at Terminating Call side . 28g36.2.1.3.1 Initial Addressing 28g36.2.1.3.2 Backward LCLS Negotiation 28g36.2.1.3.3 Access Bearer Assignment 28g36.2.1.3.4 LCLS Through-Connection . 29g36.2.1.3.5 LCLS Status Reporting 29g36.2.1.3.6 MGW/User plane. 29g36.2.2 Basic Mobile

26、Terminating Call with SIP-I based CS core network 29g36.2.2.1 General 29g36.2.2.2 Actions at Intermediate Nodes (including GMSC) . 29g36.2.2.2.1 Initial Addressing 29g36.2.2.2.2 Backward LCLS Negotiation 29g36.2.2.2.3 Through-Connection 30g36.2.2.2.4 LCLS Status Reporting within CN 30g36.2.2.2.5 MGW

27、/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 30g36.2.2.3.4 LCLS Through-Connection . 30g36.2.2.3.5 LCLS Status Reporting 30g36.2.2.3.6 MGW/User plane. 30g36.3 Basic Mobile t

28、o Mobile End to End Call Examples . 30g36.3.1 Basic Call Establishment Connection Model for LCLS . 30g36.3.2 LCLS established, Basic Call Example with BICC based CS core network, forward bearer establishment 31g36.3.3 LCLS not established, Basic Call Example with BICC based CS core network 36g36.3.4

29、 LCLS established, Basic Call Example with SIP-I based CS core network . 38g36.3.5 LCLS established, Basic Call Example with BICC based CS core network, backward bearer establishment 44g37 Call Clearing and LCLS Break/Re-establishment 47g37.1 Call Clearing 47g37.2 LCLS Break 47g37.2.1 MSC server Ini

30、tiated . 47g37.2.1.1 Principles . 47g37.2.1.2 MSC server actions . 48g37.2.1.3 GMSC server actions 48g37.2.1.4 BSS actions . 48g37.2.2 BSS Initiated . 49g37.2.2.1 Principles . 49g37.2.2.2 Immediate LCLS break . 49g37.2.2.2.1 BSS actions 49g37.2.2.2.2 MSC server actions 49g37.2.2.2.3 GMSC server acti

31、ons . 49g37.2.2.3 BSS Requesting LCLS Release from Core Network 49g37.2.2.3.1 BSS actions 49g37.2.2.3.2 MSC server actions 49g37.2.2.3.3 GMSC server actions . 50g37.2.3 Intermediate Node/GMSC Server Initiated . 50g3ETSI ETSI TS 123 284 V15.0.0 (2018-07)53GPP TS 23.284 version 15.0.0 Release 157.2.3.

32、1 Principles . 50g37.2.3.2 Intermediate Node/GMSC server actions 50g37.2.3.3 MSC server actions . 50g37.2.3.4 BSS actions . 51g37.2.4 LCLS Break Example Call Flows . 51g37.2.4.1 LCLS Break Connection Model for LCLS . 51g37.2.4.2 MSC server Initiated . 52g37.2.4.3 BSS Initiated, Immediate LCLS Break

33、. 53g37.2.4.4 BSS Initiated, LCLS Break requested from Core Network. 54g37.2.4.5 Intermediate Node/GMSC Server Initiated . 55g37.2.4.6 MSC server Initiated when Access Side Termination is isolated in MGW . 57g37.3 LCLS Re-establishment . 58g37.3.1 MSC server Initiated . 58g37.3.1.1 Principles . 58g3

34、7.3.1.2 MSC server actions . 58g37.3.1.2.1 LCLS re-establishment to the network side . 58g37.3.1.2.2 LCLS re-establishment to the BSS 58g37.3.1.2.3 LCLS Status update to the network side 58g37.3.1.3 GMSC server actions 58g37.3.1.4 BSS actions . 59g37.3.2 BSS Initiated . 59g37.3.3 Intermediate Node /

35、 GMSC Server Initiated . 59g37.3.3.1 Principles . 59g37.3.3.2 Intermediate Node / GMSC server actions 59g37.3.3.3 MSC server actions . 59g37.3.3.4 BSS actions . 59g37.3.4 LCLS Re-establishment Example Call Flows. 60g37.3.4.1 LCLS Re-establishment Connection Model for LCLS . 60g37.3.4.2 MSC server In

36、itiated Example Call Flow . 60g37.3.4.3 Intermediate Node / GMSC Server Initiated Example Call Flow . 62g37.3.4.4 MSC server Initiated when Access Side Termination is isolated in MGW . 63g38 Handover/Relocation 64g38.1 UMTS to UMTS . 64g38.2 UMTS to GSM . 64g38.2.1 General 64g38.2.2 Intra-MSC UMTS t

37、o GSM Handover . 64g38.2.2.1 Intra-MSC UMTS to GSM Handover that establishes Local Switching . 64g38.2.2.1.1 General 64g38.2.2.1.2 Relocation Required 64g38.2.2.1.3 Handover Request Acknowledge 65g38.2.2.1.4 Handover Complete . 65g38.2.2.1.5 Example . 65g38.2.2.1.5.1 Connection Model 65g38.2.2.1.5.2

38、 Basic Sequence for Intra-MSC UMTS to GSM Handover that establishes Local Switching 68g38.2.2.2 Intra-MSC UMTS to GSM Handover that does not establish LCLS 69g38.2.3 Inter-MSC UMTS to GSM Handover . 69g38.2.3.1 Inter-MSC UMTS to GSM Handover that establishes Local Switching . 69g38.2.3.1.1 General 6

39、9g38.2.3.1.2 MSC-1 / MGW-1 . 69g38.2.3.1.2.1 Relocation Required. 69g38.2.3.1.2.1 Relocation Required. 69g38.2.3.1.2.2 Handover Request Acknowledge . 69g38.2.3.1.2.3 Bearer establishment between MGW-1 and Target MGW 70g38.2.3.1.2.4 MGW Flow Direction Control . 70g38.2.3.1.2.5 Relocation Command/Hand

40、over Detect 70g38.2.3.1.2.6 Handover Complete . 70g38.2.3.1.3 Target MSC Server / Target MGW . 70g38.2.3.1.3.1 Prepare Handover Request message and MGW selection . 70g38.2.3.1.3.2 Handover Request Acknowledge . 70g38.2.3.1.3.3 Bearer establishment towards Target BSS . 70g38.2.3.1.3.4 Bearer establis

41、hment between MGW-1 and Target MGW 70g3ETSI ETSI TS 123 284 V15.0.0 (2018-07)63GPP TS 23.284 version 15.0.0 Release 158.2.3.1.3.5 Handover Complete . 70g38.2.3.1.4 Example of Inter-MSC UMTS to GSM Handover that establishes Local Switching 71g38.2.3.1.4.1 Connection Model 71g38.2.3.1.4.2 Basic Sequen

42、ce for Inter-MSC UMTS to GSM Handover that establishes Local Switching 72g38.2.3.2 Inter-MSC UMTS to GSM Handover that does not establish Local Switching 76g38.3 GSM to UMTS . 76g38.3.1 Intra-MSC GSM to UMTS Relocation . 76g38.3.1.1 General 76g38.3.1.2 Handover Required . 76g38.3.1.3 Iu Relocation R

43、equest Acknowledge 76g38.3.1.4 Handover Command/Iu Relocation Detect . 76g38.3.1.5 Iu Relocation Complete. 77g38.3.1.6 Example 77g38.3.1.6.1 Connection Model . 77g38.3.2 Inter-MSC GSM to UMTS Relocation . 83g38.3.2.1 General 83g38.3.2.2 MSC-1 / MGW-1 83g38.3.2.2.1 Handover Required 83g38.3.2.2.2 Iu

44、Relocation Request Acknowledge. 83g38.3.2.2.3 Bearer establishment between MGW-1 and Target MGW 83g38.3.2.2.4 MGW Flow Direction Control 83g38.3.2.2.5 Handover Command/Iu Relocation Detect 83g38.3.2.2.6 Iu Relocation Complete. 83g38.3.2.3 Target MSC Server / Target MGW . 84g38.3.2.3.1 Prepare Handov

45、er Request message and MGW selection . 84g38.3.2.3.2 Bearer establishment towards Target RNC . 84g38.3.2.3.3 Bearer establishment between MGW-1 and Target MGW 84g38.3.2.4 Example of Inter-MSC GSM to UMTS Relocation 84g38.3.2.4.1 Connection Model . 84g38.3.2.4.2 Basic Sequence for Inter-MSC handover

46、that breaks Local Switching . 87g38.4 GSM to GSM . 91g38.4.1 Intra-MSC Inter-BSS GSM to GSM Handover 91g38.4.1.1 Intra-MSC Inter-BSS GSM to GSM Handover that breaks Local Switching . 91g38.4.1.1.1 General 91g38.4.1.1.2 Handover Required 91g38.4.1.1.3 MGW Flow Direction Control 91g38.4.1.1.4 Handover

47、 Request Acknowledge 92g38.4.1.1.5 Handover Command/Handover Detect 92g38.4.1.1.6 Handover Complete . 92g38.4.1.1.7 Example . 92g38.4.1.1.7.1 Connection Model 92g38.4.1.1.7.2 Basic Sequence for Inter-BSS Handover that breaks Local Switching 95g38.4.1.2 Intra-MSC Inter-BSS GSM to GSM Handovers that e

48、stablishes Local Switching . 97g38.4.1.2.1 General 97g38.4.1.2.2 Handover Required 97g38.4.1.2.3 Bearer establishment towards Target BSS 97g38.4.1.2.4 MGW Flow Direction Control 97g38.4.1.2.5 Handover Request Acknowledge 97g38.4.1.2.6 Handover Command/Handover Detect 97g38.4.1.2.7 Handover Complete

49、. 98g38.4.1.2.8 Example . 98g38.4.1.2.8.1 Connection Model 98g38.4.1.2.8.2 Basic Sequence for Inter-BSS Handover that establishes Local Switching . 100g38.4.2 Inter-MSC GSM to GSM Handover . 102g38.4.2.1 Inter-MSC GSM to GSM Handover that breaks Local Switching 102g38.4.2.1.1 General 102g38.4.2.1.2 MSC-1 / MGW-1 . 102g38.4.2.1.2.1 Handover Required 102g38.4.2.1.2.2 Handover Request Acknowledge . 102g38.4.2.1.2.3 Bearer establishment between MGW-1 and Target MGW 103g38.4.2.1.2.4 MGW Flow Direction Control . 103g38.4.2.1.2.5 Handover Command/Handover Detect 103g3ETSI ETSI TS 123