ITU-T SERIES Q SUPP 38-2001 Technical Report TRQ 2600 BICC signalling transport requirements C Capability set 1 SERIES Q SWITCHING AND SIGNALLING (Study Group 11)《技术报告TRQ 2600 - BI.pdf

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1、INTERNATIONAL TELECOMMUNICATION UNIONITU-T Series QTELECOMMUNICATIONSTANDARDIZATION SECTOROF ITUSupplement 38(05/2001)SERIES Q: SWITCHING AND SIGNALLINGTechnical Report TRQ.2600: BICC signallingtransport requirements Capability set 1ITU-T Q-series Recommendations Supplement 38(Formerly CCITT Recomme

2、ndations)ITU-T Q-SERIES RECOMMENDATIONSSWITCHING AND SIGNALLINGSIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q.99CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119SPECIF

3、ICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 Q.120Q.249SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 Q.250Q.309SPECIFICATIONS OF SIGNALLING SYSTEM R1 Q.310Q.399SPECIFICATIONS OF SIGNALLING SYSTEM R2 Q.400Q.499DIGITAL EXCHANGES Q.500Q.599INTERWORKING OF SIGNALLING SYSTEMS Q.600Q.699SPECIFICATIONS OF SI

4、GNALLING SYSTEM No. 7 Q.700Q.799Q3 INTERFACE Q.800Q.849DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q.850Q.999PUBLIC LAND MOBILE NETWORK Q.1000Q.1099INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199INTELLIGENT NETWORK Q.1200Q.1699SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.1700Q.1799BRO

5、ADBAND ISDN Q.2000Q.2999For further details, please refer to the list of ITU-T Recommendations.Q series Supplement 38 (05/2001) iSupplement 38 to ITU-T Q-series RecommendationsTechnical Report TRQ.2600: BICC signalling transport requirements Capability set 1SummaryThis Supplement to ITU-T Q-series R

6、ecommendations is a technical report on the signallingtransport requirements needed for support narrowband services via broadband transporttechnologies. Its scope is limited to the signalling transport of the associated protocols at the callcontrol, bearer control and call bearer control needed to p

7、rovide this capability across an ATM/IPbackbone network for Capability Set 2.SourceSupplement 38 to ITU-T Q-series Recommendations was prepared by ITU-T Study Group 11(2001-2004) and approved under the WTSA Resolution 5 procedure on 25 May 2001.ii Q series Supplement 38 (05/2001)FOREWORDThe Internat

8、ional Telecommunication Union (ITU) is the United Nations specialized agency in the field oftelecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ ofITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations

9、on them with a view to standardizing telecommunications on a worldwide basis.The World Telecommunication Standardization Assembly (WTSA), which meets every four years,establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on thesetopics.The approval of ITU

10、-T Recommendations is covered by the procedure laid down in WTSA Resolution 1.In some areas of information technology which fall within ITU-Ts purview, the necessary standards areprepared on a collaborative basis with ISO and IEC.NOTEIn this publication, the expression “Administration“ is used for c

11、onciseness to indicate both atelecommunication administration and a recognized operating agency.INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this publication may involve theuse of a claimed Intellectual Property Right. ITU takes no positi

12、on concerning the evidence, validity orapplicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside ofthe publication development process.As of the date of approval of this publication, ITU had not received notice of intellectual property, protectedby pate

13、nts, which may be required to implement this publication. However, implementors are cautioned thatthis may not represent the latest information and are therefore strongly urged to consult the TSB patentdatabase. ITU 2001All rights reserved. No part of this publication may be reproduced or utilized i

14、n any form or by any means,electronic or mechanical, including photocopying and microfilm, without permission in writing from ITU.Q series Supplement 38 (05/2001) iiiCONTENTSPage1 Scope . 12 References 12.1 Bibliography. 13 Abbreviations . 24 Definitions 35 Functional Reference Model. 46 Identificat

15、ion of Existing and Candidate Protocols for the BICC Interfaces 56.1 Signalling Interfaces and Signalling Transport Requirements . 57 Backward Compatibility Considerations. 67.1 Configuration 1 67.2 Configuration 2 67.3 Configuration 3 78 Signalling Transport Protocol Architecture. 78.1 BICC Signall

16、ing Transport Options (Interface “B“) 78.2 TC-based service signalling transport options (Interface “D“, “F“, and “G“) . 88.3 Signalling Transport Option for the Call Bearer Control Protocol (Interface “C“) . 108.4 Signalling Transports for the Bearer Control Protocol (Interface “A“). 108.5 ISUP Acc

17、ess Signalling Transport Options (Interface “E“) . 109 Signalling Transport Requirements. 119.1 Basic Services 119.2 Signalling Transport Interface. 119.3 Addressing . 119.4 Routing 119.5 Network management procedures. 129.6 Message length. 129.7 Quality of Service. 129.8 Signaling network performan

18、ce 129.9 Operational Aspects 139.10 Security 1310 Network Planning and Provisioning Guidelines 13Q series Supplement 38 (05/2001) 1Supplement 38 to ITU-T Q-series RecommendationsTechnical Report TRQ.2600: BICC signalling transport requirements Capability set 11ScopeThis Supplement provides requireme

19、nts for the transport of signalling protocols supported by theBICC CS-2 functional model. For interfaces within the BICC functional model, the knownrequirements are identified to aid in the design of appropriate new transport protocol options.2 References1 IETF RFC 2960 (2000), Stream Control Transm

20、ission Protocol.2 ITU-T Q.711 (2001), Functional description of the signalling connection control part.3 ITU-T Q.701 (1993), Functional description of the message transfer part (MTP) ofSignalling System No. 7.4 ITU-T Q.2110 (1994), B-ISDN ATM Adaptation Layer Service specific connectionoriented prot

21、ocol (SSCOP).5 ITU-T Q.1902.1 (2001), Bearer independent call control protocol (CS-2) functionaldescription.6 ITU-T Q.2150.0 (2001), Generic signalling transport service.7 ITU-T Q.2150.1 (2001), Signalling transport converter on MTP3 and MTP3b.8 ITU-T Q.2150.2 (2001), Signalling transport converter

22、on SSCOP and SSCOPMCE.9 ITU-T Q.2150.3 (2001), (Draft) Signalling transport converter on SCTP.10 ITU-T Q.2210 (1996), Message transfer part level 3 functions and messages using theservices of ITU-T Recommendation Q.2140.11 ITU-T Q.2630.1 (1999), AAL type 2 signalling protocol Capability Set 1.12 ITU

23、-T Q.2630.2 (2000), AAL type 2 signalling protocol Capability Set 2.2.1 Bibliography13 IETF RFC 791 (1981), Internet Protocol (IP v4).14 IETF RFC 2460, (1998), Internet Protocol (IP v6).15 ITU-T Q.733.3 (1997), Stage 3 description for call completion supplementary services usingSignalling System No.

24、 7: Completion of calls to busy subscriber (CCBS).16 ITU-T Q.733.5 (1992), Stage 3 description for call completion supplementary services usingSignalling System No. 7: Completion of Calls on No Reply .17 ITU-T Q.735.1 (1993), Stage 3 description for community of interest supplementary servicesusing

25、Signalling System No. 7: Closed user group (CUG).18 ITU-T Q.736.1 (1995), Stage 3 description for charging supplementary services usingSignalling System No. 7: Clause 1 International Telecommunication Charge Card (ITCC).19 ITU-T Q.2931 (1995), Digital Subscriber Signalling System No. 2 User-Network

26、Interface(UNI) layer 3 specification for basic call/connection control.2 Q series Supplement 38 (05/2001)20 ITU-T Q.2761 (1999), Functional description of the B-ISDN user part (B-ISUP) ofsignalling system No. 7.21 ITU-T H.248 (2000), Gateway control protocol.22 ITU-T Q.2130 (1994), B-ISDN signalling

27、 ATM adaptation layer Service specificcoordination function for support of signalling at the user-network interface (SSFC at UNI).23 ITU-T Q.1950 (2001), Bearer independent call bearer control protocol.24 ITU-T Q.1990 (2001), BICC Bearer Control Tunneling Protocol.25 ITU-T Q.1970 (2001), BICC IP Bea

28、rer control protocol.26 IETF draft-ietf-sigtran-m3ua-06.27 IETF draft-ietf-sigtran-sua-05.28 IETF draft-ietf-sigtran-m2pa.-02.29 IETF draft-ietf-sigtran-m2ua-07.3 AbbreviationsThis Supplement uses the following abbreviations:BCF Bearer Control FunctionBCF-G Bearer Control Gateway FunctionBCF-J Beare

29、r Control Joint FunctionBCF-N Bearer Control Nodal FunctionBCF-R Bearer Control Relay FunctionBCF-T Bearer Control Transit FunctionBICC Bearer Independent Call ControlBISUP Broadband Integrated Service User PartBIWF Bearer Interworking FunctionCS Capability SetCSF Call Service FunctionCSF-C Call Ser

30、vice Coordination FunctionCSF-G Call Service Gateway FunctionCSF-N Call Service Nodal FunctionCSF-T Call Service Transit FunctionDSS2 Digital Signalling System No. 2GSN Gateway Serving NodeIN Intelligent NetworkINAP Intelligent Network Application ProtocolIP Internet ProtocolISDN Integrated Services

31、 Digital NetworkISN Interface Serving NodeM2PA SS7 MTP-2-Peer-to-peer Adaptation LayerQ series Supplement 38 (05/2001) 3M2UA SS7 MTP2-User Adaptation LayerM3UA SS7 MTP3-User Adaptation LayerSCCP Signalling Connection Control PartSCF Service Control FunctionSCTP Stream Control Transport ProtocolSN Se

32、rvice NodeSRF Service Resource FunctionSUA SS7 SCCP-User Adaptation LayerTC Transaction CapabilityTI/SCCP Transport Independent SCCPTSN Transit Serving Node.4 DefinitionsNOTEReferto5forBICCCS-2definitions4.1 Bearer Control Function (BCF): Note that five types of BCFs are illustrated in thecomposite

33、functional model; BCF-G, BCF-J, BCF-N, BCF-R and BCF-T: The Bearer Control Joint Function (BCF-J) provides the control of the bearer switchingfunction, the communication capability with two associated call service functions (CSF),and the signalling capability necessary to establish and release the b

34、ackbone networkconnection. The Bearer Control Gateway Function (BCF-G) provides the control of the bearer switchingfunction, the communication capability with its associated call service function (CSF-G),and the signalling capability necessary to establish and release of the backbone networkconnecti

35、on. The Bearer Control Nodal Function (BCF-N) provides the control of the bearer switchingfunction, the communication capability with its associated call service function (CSF), andthe signalling capability necessary to establish and release of the backbone networkconnection to its peer (BCF-N). The

36、 Bearer Control Relay Function (BCF-R) provides the control of the bearer switchingfunction and relays the bearer control signalling requests to next BCF in order to completethe edge to edge backbone network connection. The Bearer Control Transit Function (BCF-T) provides the control of the bearer s

37、witchingfunction, the communication capability with its associated call service function (CSF-T),and the signalling capability necessary to establish and release of the backbone networkconnection.4.2 Bearer Interworking Function (BIWF): A functional entity which provides bearer controland media mapp

38、ing/switching functions within the scope of a Serving Node (ISN, TSN or GSN). ABIWF contains one Bearer Control Nodal Function (BCF-N, BCF-T or BCF-G) and one or moreMCF and MMSF, and is functionally equivalent to a Media Gateway that incorporates bearercontrol.4.3 Call Service Function (CSF): Note

39、that four types of CSFs are illustrated in the compositefunctional model, CSF-N, CSF-T, CSF-G and CSF-C: The Call Service Nodal Function (CSF-N) provides the service control nodal actionsassociated with the narrowband service by interworking with narrowband and Bearer4 Q series Supplement 38 (05/200

40、1)Independent Call Control (BICC) signalling, signalling to its peer (CSF-N) thecharacteristics of the call, and invoking the Bearer Control Nodal Functions (BCF-N and/orBCF-J) necessary to transport the narrowband bearer service across the broadband backbonenetwork. The Call Service Transit Functio

41、n (CSF-T) provides the service transit actions necessary toestablish and maintain a backbone network call and its associated bearer by relayingsignalling between CSF-N peers and invoking the Bearer Control Nodal Functions (BCF-Tand/or BCF-J) necessary to transport the narrowband bearer service acros

42、s the broadbandbackbone network. The Call Service Gateway Function (CSF-G) provides the service gateway actions necessaryto establish and maintain a backbone network call and its associated bearer by relayingsignalling between CSF-N peers and invoking the Bearer Control Nodal Functions (BCF-N)necess

43、ary to transport the narrowband bearer service between broadband backbonenetworks. The Call Service Coordination Function (CSF-C) provides the call coordination andmediation actions necessary to establish and maintain a backbone network call by relayingsignalling between CSF-N peers. The CSF-C has n

44、o association with any BCF. It is only acall control function.4.4 Gateway Serving Node (GSN): A functional entity which provides gateway functionalitybetween two network domains. This functional entity contains one or more call service gatewayfunctions (CSF-G), and one or more bearer interworking fu

45、nctions (BIWF). GSNs interact with otherGSNs, in other broadband backbone network domains and other ISNs and TSNs within its ownbroadband backbone network domain. The network signalling flows for a GSN are equivalent asthose for a TSN.4.5 Interface Serving Node (ISN): A functional entity which provi

46、des the interface with non-BICC networks and terminal equipment. This functional entity contains one or more call servicenodal functions (CSF-N), and one or more interworking functions (BIWF) which interact with thenon-BICC networks and terminal equipment and its peers within the broadband backbone

47、network.4.6 Service Node (SN): A generic term referring to ISN, GSN or TSN nodes.4.7 Transit Serving Node (TSN): A functional entity which provides transit functionalitybetween ISNs and GSNs. This functional entity contains one or more call service transit functions(CSF-T), and one or more bearer in

48、ter-working functions (BIWF). TSNs interact with other TSNs,GSNs and ISNs within their own broadband backbone network domain.5 Functional Reference ModelThe signalling transport interfaces that are expected to be visible within a BICC CS-2 functionalmodel are shown in Figure 1. Figure 1 is derived f

49、rom the Signalling Requirements TRQ document.For the purposes of this Supplement there is not a one-to-one relationship with the functional entitiesin the Signalling Requirements TRQ. It is not necessary to separate out the various network CSFs(-N , -T, G and -C) in Figure 1 for the purposes of examining the transport requirements betweenthem as the signalling protocol between any two is expected to be the same.Q series Supplement 38 (05/2001) 5T11112830-01BABBCCASCFFF