ETSI TS 123 205-2016 Digital cellular telecommunications system (Phase 2+) Universal Mobile Telecommunications System (UMTS) LTE Bearer-independent circuit-switched core network St.pdf

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1、 ETSI TS 1Digital cellular telecoUniversal Mobile TelBearer-independen(3GPP TS 23.2TECHNICAL SPECIFICATION123 205 V13.0.0 (2016communications system (Phaelecommunications System (LTE; e t circuit-switched core netwStage 2 .205 version 13.0.0 Release 1316-01) hase 2+); (UMTS); et ork; 13) ETSI ETSI T

2、S 123 205 V13.0.0 (2016-01)13GPP TS 23.205 version 13.0.0 Release 13Reference RTS/TSGC-0423205vd00 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 lucrat

3、if 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 pre

4、sent 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 d

5、rive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the presen

6、t 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 authorized

7、 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 2016. All rights reserved. DECTTM, PLUGTEST

8、STM, 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 Association.

9、ETSI ETSI TS 123 205 V13.0.0 (2016-01)23GPP TS 23.205 version 13.0.0 Release 13Intellectual 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 ETSI membe

10、rs 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:/ipr.etsi.

11、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, essential to the

12、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 interpreted as being

13、 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“, “will“, “wi

14、ll 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 123 205 V13.0.0 (2016-01)33GPP TS 23.2

15、05 version 13.0.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 15g31 Scope 16g32 References 16g33 Symbols and abbreviations . 18g33.1 Symbols 18g33.2 Abbreviations . 18g33.3 Definitions 19g34 Main Concepts 19g34.1 General . 19g34.2 Bearer-Ind

16、ependent Call Control . 19g34.3 H.248/MEGACO 20g35 General Circuit Switched Core Network Domain Architecture . 20g35.1 Logical Architecture . 20g35.1.1 CS Core Network Nodes . 20g35.1.1.1 MSC Server . 20g35.1.1.2 GMSC Server 20g35.1.1.3 Media Gateway . 20g35.1.2 CS Core Network Interfaces and Refere

17、nce Points 21g35.1.2.1 Mc Interface 21g35.1.2.2 Nc Interface. 21g35.1.2.3 Nb Interface. 21g35.2 Network Interworking 21g35.2.1 Interworking on the Nc Reference Point . 21g35.2.2 Interworking on the Nb Reference Point 21g36 Call Establishment 21g36.1 Basic Mobile Originating Call 21g36.1.1 Forward be

18、arer establishment . 21g36.1.1.1 MGW selection . 21g36.1.1.2 Initial addressing . 22g36.1.1.3 Network side bearer establishment . 22g36.1.1.4 Access bearer assignment . 22g36.1.1.5 Framing protocol initialisation 22g36.1.1.6 Confirmation of bearer establishment . 22g36.1.1.7 Through-Connection . 23g

19、36.1.1.8 Interworking function 23g36.1.1.9 Codec handling . 23g36.1.1.10 Voice Processing function . 23g36.1.1.11 Failure handling in MSC server 23g36.1.1.12 Example 23g36.1.2 Backward bearer establishment 26g36.1.2.1 MGW selection . 26g36.1.2.2 Network side bearer establishment . 26g36.1.2.3 Initia

20、l addressing . 26g36.1.2.4 Access bearer assignment . 27g36.1.2.5 Framing protocol initialisation 27g36.1.2.6 Confirmation of bearer establishment . 27g36.1.2.7 Through-Connection . 27g36.1.2.8 Interworking function 27g3ETSI ETSI TS 123 205 V13.0.0 (2016-01)43GPP TS 23.205 version 13.0.0 Release 136

21、.1.2.9 Codec handling . 28g36.1.2.10 Voice Processing function . 28g36.1.2.11 Failure handling in MSC server 28g36.1.2.12 Example 28g36.1.3 Originating Call Establishment For Iu Interface on IP . 30g36.1.4 Forward bearer establishment with Trace Session Activation 31g36.1.4.1 Trace activation . 31g3

22、6.1.4.2 Example 32g36.1.5 Originating Call Establishment for A interface over IP 34g36.2 Basic Mobile Terminating Call 35g36.2.1 Forward bearer establishment . 35g36.2.1.1 GMSC server. 35g36.2.1.1.1 MGW selection 35g36.2.1.1.2 Initial addressing . 36g36.2.1.1.3 Outgoing side bearer establishment . 3

23、6g36.2.1.1.4 Incoming side bearer establishment. 36g36.2.1.1.5 Framing protocol initialisation 36g36.2.1.1.6 Through-Connection 36g36.2.1.1.7 Confirmation of bearer establishment . 36g36.2.1.1.8 Voice Processing function . 37g36.2.1.1.9 Failure handling in GMSC server 37g36.2.1.2 MSC server . 37g36.

24、2.1.2.1 Paging 37g36.2.1.2.2 Call setup . 37g36.2.1.2.3 MGW selection 37g36.2.1.2.4 Network side bearer establishment 37g36.2.1.2.5 Access bearer assignment 37g36.2.1.2.6 Framing protocol initialisation 38g36.2.1.2.7 Called party alerting 38g36.2.1.2.8 Called party answer . 38g36.2.1.2.9 Through-Con

25、nection 38g36.2.1.2.10 Interworking function 39g36.2.1.2.11 Codec handling 39g36.2.1.2.12 Voice Processing function . 39g36.2.1.2.13 Failure handling in MSC server . 39g36.2.1.2.14 Example . 39g36.2.2 Backward bearer establishment 42g36.2.2.1 GMSC server. 42g36.2.2.1.1 MGW selection 42g36.2.2.1.2 Ou

26、tgoing side bearer establishment . 42g36.2.2.1.3 Initial addressing . 42g36.2.2.1.4 Incoming side bearer establishment. 42g36.2.2.1.5 Framing protocol initialisation 42g36.2.2.1.6 Through-Connection 43g36.2.2.1.7 Confirmation of bearer establishment . 43g36.2.2.1.8 Voice Processing function . 43g36.

27、2.2.1.9 Failure handling in GMSC server 43g36.2.2.2 MSC server . 43g36.2.2.2.1 Paging 43g36.2.2.2.2 Call setup . 43g36.2.2.2.3 MGW selection 44g36.2.2.2.3 Network side bearer establishment 44g36.2.2.2.4 Access bearer assignment 44g36.2.2.2.5 Framing protocol initialisation 44g36.2.2.2.6 Called party

28、 alerting 45g36.2.2.2.7 Called party answer . 45g36.2.2.2.8 Through-Connection 45g36.2.2.2.9 Interworking function 45g36.2.2.2.10 Codec handling 45g36.2.2.2.11 Voice Processing function . 45g36.2.2.2.12 Failure handling in MSC server . 45g36.2.2.2.13 Example . 45g3ETSI ETSI TS 123 205 V13.0.0 (2016-

29、01)53GPP TS 23.205 version 13.0.0 Release 136.2.3 Terminating Call Establishment For Iu Interface on IP 49g36.2.4 Terminating Call Establishment For A Interface over IP . 51g37 Call Clearing 51g37.1 Network Initiated 52g37.1.1 GMSC server 52g37.1.1.1 Call clearing from the incoming side 52g37.1.1.2

30、Call clearing to the outgoing side 52g37.1.2 MSC server . 52g37.1.2.1 Call clearing from the network side 52g37.1.2.2 Call clearing to the UE 52g37.1.2.3 Example 53g37.2 User Initiated 54g37.2.1 Void 55g37.2.2 MSC server . 55g37.2.2.1 all clearing from the UE 55g37.2.2.2 Call clearing to the network

31、 side . 55g37.2.2.3 Example 55g37.3 (G)MSC server Initiated . 56g37.3.1 GMSC server 56g37.3.1.1 Call clearing to the destination side 56g37.3.1.2 Call clearing to the originating side 56g37.3.2 MSC server . 57g37.3.2.1 Call clearing to the UE 57g37.3.2.2 Call clearing to the network side . 57g37.3.2

32、.3 Example 57g37.4 MGW Initiated . 59g37.4.1 GMSC server 59g37.4.1.1 Bearer released on the destination side . 59g37.4.1.2 Bearer released on the originating side . 59g37.4.2 MSC server . 59g37.4.2.1 Bearer released on the access side . 59g37.4.2.2 Bearer released on the network side 59g37.4.2.3 Exa

33、mple 59g37.5 Call Clearing for Iu Interface on IP 61g38 Handover/Relocation 63g38.1 UMTS to UMTS . 63g38.1.1 Intra-MSC SRNS/SBSS Relocation . 63g38.1.1.1 Relocation Required 64g38.1.1.2 Relocation Command/Relocation Detect 64g38.1.1.3 Relocation Complete . 64g38.1.1.4 Interworking function 64g38.1.1

34、.5 Codec handling . 64g38.1.1.6 Voice Processing function . 64g38.1.1.7 Handling of multiple bearers (multicall) . 64g38.1.1.8 Failure Handling in MSC server . 64g38.1.1.9 Example 64g38.1.2 Basic Inter-MSC SRNS/SBSS Relocation 67g38.1.2.1 MSC-A/MGW-A 67g38.1.2.1.1 Relocation Required 67g38.1.2.1.2 B

35、earer establishment between MGW-A and MGW-B 67g38.1.2.1.3 Relocation Command/Relocation Detect 67g38.1.2.1.4 Relocation Complete . 67g38.1.2.1.5 Interworking function 67g38.1.2.1.6 Codec handling 67g38.1.2.1.7 Voice Processing function . 67g38.1.2.1.8 Handling of multiple bearers (multicall) . 68g38

36、.1.2.1.9 Failure Handling in MSC server 68g38.1.2.2 MSC-B/MGW-B . 68g38.1.2.2.1 MGW selection 68g38.1.2.2.2 Bearer establishment towards RNC-B . 68g3ETSI ETSI TS 123 205 V13.0.0 (2016-01)63GPP TS 23.205 version 13.0.0 Release 138.1.2.2.3 Bearer establishment between MGW-A and MGW-B 68g38.1.2.2.4 Cod

37、ec handling 68g38.1.2.2.5 Voice Processing function . 68g38.1.2.2.6 Handling of multiple bearers (multicall) . 68g38.1.2.2.7 Failure Handling in MSC server 68g38.1.2.2.8 Example . 69g38.1.3 Subsequent Inter-MSC SRNS/SBSS Relocation back to the Anchor MSC . 71g38.1.3.1 MSC-A/MGW-A 71g38.1.3.1.1 Reloc

38、ation Request 71g38.1.3.1.2 Relocation Command/Relocation Detect 71g38.1.3.1.3 Relocation Complete . 72g38.1.3.1.4 Interworking function 72g38.1.3.1.5 Codec handling 72g38.1.3.1.6 Voice Processing function . 72g38.1.3.1.7 Handling of multiple bearers (multicall) . 72g38.1.3.1.8 Failure Handling in M

39、SC server 72g38.1.3.2 MSC-B/MGW-B . 72g38.1.3.2.1 Relocation Required 72g38.1.3.2.2 Relocation Complete . 72g38.1.3.2.3 Release of bearer towards MGW-A 72g38.1.3.2.4 Handling of multiple bearers (multicall) . 73g38.1.3.2.5 Example. 73g38.1.4 Subsequent Inter-MSC SRNS/SBSS Relocation to a third MSC .

40、 75g38.1.5 SRNS/SBSS Relocation with Iu on IP 75g38.1.6 Intra-MSC enhanced SRNS Relocation 76g38.1.6.1 Introduction . 76g38.1.6.2 Enhanced Relocation Complete Request 76g38.1.6.3 Enhanced Relocation Complete Confirm 77g38.1.6.4 Interworking function 77g38.1.6.5 Codec handling . 77g38.1.6.6 Voice Pro

41、cessing function . 77g38.1.6.7 Handling of multiple bearers (multicall) . 77g38.1.6.8 Failure Handling in MSC server . 77g38.1.6.9 Example 77g38.1.7 Intra-MSC enhanced SRNS Relocation with Iu on IP 79g38.2 UMTS to GSM . 80g38.2.1 Intra-MSC UMTS to GSM Handover . 80g38.2.1.1 Relocation Required 80g38

42、.2.1.2 Handover Request Acknowledge 81g38.2.1.3 Relocation Command/Handover Detect 81g38.2.1.4 Handover Complete 81g38.2.1.5 Interworking function 81g38.2.1.6 Voice Processing function . 81g38.2.1.7 Handling of multiple bearers (multicall) . 81g38.2.1.8 Failure Handling in MSC server . 81g38.2.1.9 E

43、xample 81g38.2.1.10 Intra-MSC UMTS to GSM Handover for A interface over IP 84g38.2.2 Basic Inter-MSC UMTS to GSM Handover . 85g38.2.2.1 MSC-A/ MGW-A . 85g38.2.2.1.1 Bearer establishment between MGW-A and MGW-B 85g38.2.2.1.2 Relocation Command/Handover Detect 85g38.2.2.1.3 Handover Complete . 86g38.2

44、.2.1.4 Interworking function 86g38.2.2.1.5 Voice Processing function . 86g38.2.2.1.6 Handling of multiple bearers (multicall) . 86g38.2.2.1.7 Failure Handling in MSC server 86g38.2.2.2 MSC-B/MGW-B . 86g38.2.2.2.1 MGW selection 86g38.2.2.2.2 Bearer establishment towards BSC-B . 86g38.2.2.2.3 Bearer e

45、stablishment between MGW-A and MGW-B 86g38.2.2.2.4 Voice Processing function . 86g38.2.2.2.5 Failure Handling in MSC server 86g3ETSI ETSI TS 123 205 V13.0.0 (2016-01)73GPP TS 23.205 version 13.0.0 Release 138.2.2.2.6 Example . 87g38.2.2.3 Basic Inter-MSC UMTS to GSM Handover for A Interface over IP

46、89g38.2.3 Subsequent Inter-MSC UMTS to GSM Handover back to the Anchor MSC . 90g38.2.3.1 MSC-A 90g38.2.3.1.1 Handover Request . 90g38.2.3.1.2 Handover Request Acknowledge 91g38.2.3.1.3 Relocation Command/Handover Detect 91g38.2.3.1.4 Handover Complete . 91g38.2.3.1.5 Interworking function 91g38.2.3.

47、1.6 Voice Processing function . 91g38.2.3.1.7 Handling of multiple bearers (multicall) . 91g38.2.3.1.8 Failure Handling in MSC server 91g38.2.3.2 MSC-B 91g38.2.3.2.1 Handover Complete . 91g38.2.3.2.2 Release of bearer towards MGW-A 91g38.2.3.2.3 Handling of multiple bearers (multicall) . 92g38.2.3.2

48、.4 Example. 92g38.2.3.3 Subsequent Inter-MSC UMTS to GSM Handover back to the anchor MSC for A Interface over IP . 94g38.2.4 Subsequent Inter-MSC UMTS to GSM Handover to a third MSC . 95g38.3 GSM to UMTS . 95g38.3.1 Intra-MSC GSM to UMTS Handover . 96g38.3.1.1 Handover Required . 96g38.3.1.2 Handove

49、r Command/Relocation Detect 96g38.3.1.3 Relocation Complete . 96g38.3.1.4 Interworking function 96g38.3.1.5 Codec handling . 96g38.3.1.6 Voice Processing function . 96g38.3.1.7 Failure Handling in MSC server . 96g38.3.1.8 Example 96g38.3.2 Basic Inter-MSC GSM to UMTS Handover . 98g38.3.2.1 MSC-A 99g38.3.2.1.1 Handover Required 99g38.3.2.1.2 Bearer establishment between MGW-A and MGW-B 99g38.3.2.1.3 Handover Command/Handover Detect 99g38.3.2.1.4 Handover Complete . 99g38.3.2.1.5 Interworking function 99g38.3.2.1.6 Codec handling 99g38.3.2.1.7 Voice Processing function . 99g38.