SIST EN 301 848-1 V1.1.1:2005

• Abstract:

  To specify the BICC signalling procedures in an ATM/IP/.. backbone network for Capability Set 1 (CS1) based on the work in ITU-T SG 11 & IETF (endorsement deliverable)

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI EN 301 848-1 V1.1.1 (2000-10) - Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); Bearer Independent Call Control (BICC); Signalling procedures in an ATM/IP/.. backbone network; Capability Set 1 (CS1); Part 1: Protocol specification [ITU-T Recommendations Q.1901 and Q.765.5, modified]

SIST EN 301 848-1 V1.1.1:2005 is the Slovenian identical adoption of ETSI EN 301 848-1 V1.1.1, a European Telecommunications Standard from ETSI. It specifies BICC signalling procedures in an ATM/IP/.. backbone network for Capability Set 1 (CS1), based on ITU-T Recommendations Q.1901 and Q.765.5 as modified for ETSI use. In practice, it is the reference for call-control signalling between Serving Nodes in this network context.

What does SIST EN 301 848-1 V1.1.1:2005 specify?

SIST EN 301 848-1 V1.1.1:2005 specifies the ETSI endorsement of the ITU-T BICC Capability Set 1 protocol recommendations. It covers the protocol specification for BICC call control and the transport of bearer-related information, while bearer control itself is handled by other protocols not specified here.

The document is organized into:

• Clause 1 - Scope
• Clause 2 - References
• Clause 3 - Definitions
• Clause 4 - Endorsement notice
  • 4.1 Q.1901
  • 4.2 Q.765.5
• History

Clause 4 states how the ITU-T recommendations are applied with ETSI modifications. The endorsement notice also identifies Appendices I, II and III of Q.1901 as informative annexes.

What are the key requirements of SIST EN 301 848-1 V1.1.1:2005?

The core requirement is to use the BICC protocol between Serving Nodes for call control in the specified backbone network environment. The document matters because it tells implementers which signalling rules belong to BICC and which functions are delegated to other protocols.

BICC call control rules

ITU-T Recommendation Q.1901, as endorsed here, adapts narrowband ISDN User Part (ISUP) for bearer-independent support. In practice, this means the call-control signalling can be separated from the bearer technology and from the transport used for signalling messages.

Q.1901 defines BICC as the call control protocol between Serving Nodes (SN). It also distinguishes the serving-node roles used by the protocol:

• Interface Serving Node (ISN)
• Transit Serving Node (TSN)
• Gateway Serving Node (GSN)

For an engineer, this is the part that tells you where BICC terminates and what type of node performs each network function.

Bearer-related information transport

ITU-T Recommendation Q.765.5 adds the transport needed for bearer-related information associated with BICC. It specifies the use of the Application Transport Mechanism (APM) user for that purpose.

In practice, this is the piece that carries bearer-related data between call-control instances after the call control and bearer control functions have been separated.

ETSI modifications to the ITU-T texts

The endorsement notice replaces several ITU-T references with ETSI equivalents throughout Q.1901 and Q.765.5. This matters because an implementation has to follow the ETSI-referenced supporting standards, not the original ITU-T text alone.

The document also states that formats, codes and procedures marked for national use are included for informative purposes for the international interface specification. Where a national network and operator network support them, they are intended to be supported in that way.

Informative annexes

Appendices I, II and III of Q.1901 are treated as informative annexes. For implementers, that means they provide supporting information rather than the main endorsed protocol rules.

What terms does SIST EN 301 848-1 V1.1.1:2005 define?

• Bearer Independent Call Control (BICC) - The call-control protocol used between Serving Nodes when call control is separated from bearer control.
• ISDN User Part (ISUP) - The SS7 user part that BICC adapts and references for narrowband ISDN signalling.
• Application Transport Mechanism (APM) - The transport mechanism used to carry bearer-related information for BICC.
• Serving Node (SN) - The node category used in BICC for call-control handling.
• Interface Serving Node (ISN) - A Serving Node that provides an interface to circuit-switched networks.
• Transit Serving Node (TSN) - A Serving Node that provides transit functionality for call and bearer within one network using BICC.
• Gateway Serving Node (GSN) - A Serving Node that provides inter-network gateway functionality for call and bearer using BICC.

Who uses SIST EN 301 848-1 V1.1.1:2005?

This standard is used by telecommunications operators, network equipment vendors, and protocol engineers working on ISDN, SS7 and BICC implementations. It is also relevant for teams designing Serving Nodes, especially ISN, TSN and GSN functions.

Quality and interoperability teams use it to check that BICC signalling and bearer-related transport follow the endorsed protocol set. It is also relevant to organisations that need to align their network elements with ETSI and the referenced ITU-T and ETSI standards.

Which standards are used with SIST EN 301 848-1 V1.1.1:2005?

The document builds on these referenced standards:

• ITU-T Recommendation Q.1901 (2000) - The base BICC protocol that is endorsed and modified here.
• ITU-T Recommendation Q.765.5 (2000) - The bearer-related transport extension for BICC.
• ETSI EN 300 356-1 - Supplies the ISUP basic services reference used in the modifications.
• ETSI EN 300 356-2 - Supplies the ISUP supplementary services reference used in the modifications.
• ETSI EN 301 069-1 - Supplies the Application Transport Mechanism reference for ISUP.
• ETSI EN 300 008-1 - Supplies the Message Transfer Part (MTP) reference for international interconnection.
• ETSI EN 301 004-1 - Supplies the Broadband ISDN MTP level 3 functions and messages reference.
• ETSI EN 300 436-1 - Supplies the SAAL/SSCOP reference used for B-ISDN support.

What does the SIST EN 301 848-1 V1.1.1:2005 document contain?

The document contains the endorsement notice that maps ITU-T references to ETSI references and states how Q.1901 and Q.765.5 apply with ETSI modifications. It also contains the normative references list, the definitions clause, and the history note.

For protocol work, the most useful content is the reference-replacement table in clause 4 and the statements about informative annexes and national-use items. Together, these tell implementers which companion standards to use and how to interpret the endorsed BICC specification.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); Bearer Independent Call Control (BICC); Signalling procedures in an ATM/IP/. backbone network; Capability Set 1 (CS1); Part 1: Protocol specification [ITU-T Recommendations Q.1901 and Q.765.5, modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 848-1 Version 1.1.1SIST EN 301 848-1 V1.1.1:2005en01-januar-2005SIST EN 301 848-1 V1.1.1:2005SLOVENSKI
STANDARD
ETSIEN301848-1V1.1.1(2001-02)EuropeanStandard(Telecommunicationsseries)IntegratedServiceDigitalNetwork(ISDN)SignallingSystemNo.7(SS7);BearerIndependentCallControl(BICC);SignallingproceduresinanATM/IP/.backbonenetwork;CapabilitySet1(CS1);Part1:Protocolspecification[ITU-TRecommendationsQ.1901andQ.765.5,modified]SIST EN 301 848-1 V1.1.1:2005

ETSIETSIEN301848-1V1.1.1(2001-02)2ReferenceDEN/SPAN-01079-1KeywordsATM,endorsement,ISDN,protocol,ISUPETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 301 848-1 V1.1.1:2005

ETSIETSIEN301848-1V1.1.1(2001-02)3ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitions.64Endorsementnotice.64.1Q.1901.64.2Q.765.5.7History.8SIST EN 301 848-1 V1.1.1:2005

ETSIETSIEN301848-1V1.1.1(2001-02)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeServicesandProtocolsforAdvancedNetworks(SPAN).Thepresentdocumentispart1ofamulti-partdeliverablecoveringtheIntegratedServiceDigitalNetwork(ISDN);SignallingSystemNo.7(SS7);BearerIndependentCallControl(BICC);SignallingproceduresinanATM/IP/.backbonenetwork;CapabilitySet1(CS1),asidentifiedbelow:Part1:"Protocolspecification[ITU-TRecommendationsQ.1901andQ.765.5,modified]".Furtherpartsmaybeproducedinthefuture.NationaltranspositiondatesDateofadoptionofthisEN:9February2001DateoflatestannouncementofthisEN(doa):31May2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):30November2001DateofwithdrawalofanyconflictingNationalStandard(dow):30November2001SIST EN 301 848-1 V1.1.1:2005

ETSIETSIEN301848-1V1.1.1(2001-02)51ScopeThepresentdocumentprovidestheETSIendorsementoftheITU-TBICCCapabilitySet1protocolRecommendationsQ.1901[1]andQ.765.5[2]ITU-TR
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