SIST ETS 300 326-1:1999

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektromagnetna združljivost (EMC) in zadeve v zvezi z radijskim spektrom (ERM) - Prizemni letalski telefonski sistem (TFTS) - 1. del: Govorne storitve, zahteve za napraveElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Terrestrial Flight Telecommunications System (TFTS); Part 1: Speech services, facilities and requirements49.090On-board equipment and instruments33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.01Radijske komunikacije na splošnoRadiocommunications in generalICS:Ta slovenski standard je istoveten z:ETS 300 326-1 Edition 2SIST ETS 300 326-1:1999en01-november-1999SIST ETS 300 326-1:1999SLOVENSKI
STANDARD



SIST ETS 300 326-1:1999



EUROPEANETS 300 326-1TELECOMMUNICATIONAugust 1998STANDARDSecond EditionSource: ERMReference: RE/ERM-RP05-005-1ICS:33.020Key words:TFTS, radio, speechElectromagnetic compatibilityand Radio spectrum Matters (ERM);Terrestrial Flight Telecommunications System (TFTS);Part 1: Speech services, facilities and requirementsETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEInternet: secretariat@etsi.fr - http://www.etsi.fr - http://www.etsi.orgTel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998. All rights reserved.SIST ETS 300 326-1:1999



Page 2ETS 300 326-1: August 1998Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Standards Making Support Dept." at the address shown on the title page.SIST ETS 300 326-1:1999



Page 3ETS 300 326-1: August 1998ContentsForeword.5Introduction.51 Scope.72 Normative references.73 Definitions and abbreviations.83.1 Definitions.83.2 Abbreviations.84 General description of the TFTS.94.1 Purpose of the TFTS.94.2 Service coverage.94.3 TFTS architecture.104.3.1 Aircraft Station (AS).114.3.2 Ground Station (GS).124.3.3 Ground Switching Centre (GSC).124.3.4 Radio interface.124.3.5 Fixed network interface.124.3.6 Interfaces with other systems.125 TFTS telecommunication services.125.1 TFTS bearer services.125.1.1 Speech bearer service.125.1.2 Paging135.2 TFTS teleservices.135.3 TFTS supplementary services.135.4 Others TFTS services.145.4.1 TFTS services defined in other specifications.145.4.1.1 Bearer services.145.4.1.2 Teleservices.145.4.2 Future services to be defined in later phases.145.4.2.1 Bearer services.145.4.2.2 Teleservices.146 TFTS requirements.156.1 Safety.156.1.1 Aviation requirements.156.1.2 Suspension of service by crew.156.1.3 Suspension of service from ground.156.1.4 Ground equipment.156.1.5 User safety.156.2 Service coverage.156.2.1 Basic requirements.156.2.2 Implementation of intermediate and airport cells.156.2.3 Radio network and cell planning.156.3 Capacity and frequency utilization.166.3.1 Use of frequency spectrum.166.3.2 Specified frequency spectrum.166.3.3 Capacity aspects.166.4 Mobility Management (MM).166.4.1 Roaming and location registration.166.4.2 GS selection.166.5 Handover.166.5.1 Handover facilities.16SIST ETS 300 326-1:1999



Page 4ETS 300 326-1: August 19986.5.2 Inter GSC handover.166.6 Network interworking.176.6.1 Fixed network interface.176.6.2 Transmission and signalling requirements.176.7 TFTS transmission performance.176.7.1 Fixed network connections.176.7.1.1 Digital connectivity.176.7.1.2 Network devices.176.7.2 Aircraft equipment.176.7.2.1 Aircraft system standards.176.7.2.2 Aircraft terminal echo sources.176.7.2.3 Handsets.176.7.3 TFTS reference models.186.7.4 TFTS delay budget.186.7.4.1 One way delay budget.186.7.4.2 Echo control.196.8 Voice coding.196.9 Call queuing.196.10 Transmission of Dual Tone Multi Frequency (DTMF) tones.196.11 Call progress indications.196.11.1 Purpose and types of indication.196.11.2 Call conditions.196.11.2.1 Case 1 of subclause 6.11.1.206.11.2.2 Case 2 of subclause 6.11.1.206.11.2.3 Case 3 of subclause 6.11.1.206.11.3 ATE interface.206.12 Identification of separate networks and service providers.217 Design parameters.217.1 General.217.2 TFTS design parameters.217.2.1 Call success rate.217.2.2 Time to connect call.217.2.3 Time to release call.217.2.4 Connection time remaining.217.2.5 Duration of interruption due to handover.227.2.6 Handover success rate.227.2.7 Telephony probability of intelligibility.228 TFTS data requirements.228.1 External data systems.228.2 TFTS data records.228.2.1 Identification data.258.2.1.1 Aircraft Station Identity (ASI).258.2.1.2 Aircraft Equipment Number (AEN).258.2.1.3 Aircraft Termination Equipment Identifier (ATEI).258.2.1.4 Aircraft Equipment Code (AEC).258.2.2 Identification data Ground Station System (GSS).258.2.2.1 Ground Station Identity Code (GSIC).258.2.2.2 Ground Equipment Number (GEN).268.2.2.3 Latitude and longitude.26History.27SIST ETS 300 326-1:1999



Page 5ETS 300 326-1: August 1998ForewordThis second edition European Telecommunication Standard (ETS) has been produced by theElectromagnetic compatibility and Radio spectrum Matters (ERM) Technical Committee of the EuropeanTelecommunications Standards Institute (ETSI).This ETS has been split into three parts as follows:Part 1: "Speech services, facilities and requirements";Part 2: "Speech services, radio interface";Part 3: "Speech services, network aspects".Transposition datesDate of adoption of this ETS: 24 July 1998Date of latest announcement of this ETS (doa): 31 October 1998Date of latest publication of new National Standardor endorsement of this ETS (dop/e): 30 April 1999Date of withdrawal of any conflicting National Standard (dow): 30 April 1999IntroductionThe Terrestrial Flight Telecommunication System (TFTS) aircraft station was specified by the EuropeanAirlines Electronic Committee (EAEC) and has subsequently been adopted as Aeronautical RadioIncorporated (ARINC) Characteristic 752 [2] by the Airlines Electronic Engineering Committee (AEEC).ARINC Characteristic 752 [2] makes reference to this ETS for the specification of certain radio andtelecommunication matters to avoid ambiguity. The TFTS aircraft station is one of a set of facilities withinan overall architecture being defined for aircraft on-board telecommunications by the AEEC.There are supplementary specifications defining the provision of functions or services outside the scope ofthis specification.SIST ETS 300 326-1:1999



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Page 7ETS 300 326-1: August 19981ScopeThis European Telecommunication Standard (ETS) specifies the minimum technical requirements of theservices, facilities and functions that the Terrestrial Flight Telecommunication System (TFTS) supports toprovide a pan-European terrestrial aeronautical public correspondence service.This ETS contains the specification of equipment for the provision of a terrestrial aeronautical publiccorrespondence service working in the frequency spectrum bands allocated at World Administrative RadioConference 1992 (WARC 92) (1 670 to 1 675 MHz and 1 800 to 1 805 MHz).This ETS fully specifies aspects of the radio interface and Terrestrial Flight Telecommunication System(TFTS) ground network required to maintain inter-operability of equipment. ERC DecisionERC/DEC/(92)01 [1] is applicable to the TFTS frequency spectrum within Europe.This ETS includes a general description of the TFTS which is of informative nature.The specification of data application and facsimile is the subject of ES 200 794 [12].The delivery mechanism for Packet Data Services is defined in ETS 300 752 [11].The commercial aspects of service definition are outside the scope of this ETS except where it isnecessary for this information to be considered due to its impact on technical specification matters.The scope of this part of the ETS has been confined to the set of services to be provided by the phase 1standard. An informative subclause 5.4 has been included describing the service definitions that maysubsequently be specified for uplink calling, facsimile, data services and low rate speech services.2Normative referencesThis ETS incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications listed hereafter.For dated references, subsequent amendments to or revisions of any of these publications apply to thisETS only when incorporated in it by amendment or revision. For undated references the latest edition ofthe publication referred to applies.[1]ERC Decision ERC/DEC/(92)01 (1991): "Decision on the frequency bands to bedesignated for the coordinated introduction of the Terrestrial FlightTelecommunications System (TFTS)".[2]ARINC Characteristic 752 (1993): "Terrestrial Flight Telecommunication System(TFTS) Airborne Radio Subsystem".[3]ARINC Characteristic 746: "Cabin Communications System".[4]ETS 300 085 (1990): "Integrated Services Digital Network (ISDN); 3,1 kHztelephony teleservice Attachment requirements for handset terminals".[5]ETS 300 326-2: "Electromagnetic Compatibility and Radio Spectrum Matters(ERM); Terrestrial Flight Telecommunications System (TFTS); Part 2: Speechservices, radio interface".[6]ETS 300 326-3: "Electromagnetic Compatibility and Radio Spectrum Matters(ERM); Terrestrial Flight Telecommunications System (TFTS); Part 3: Speechservices, network aspects".[7]CCITT Recommendation G.165 (1988): "Echo cancellers".[8]CCITT Recommendation E.164 (1991): "Numbering plan for the ISDN era".[9]Inmarsat Aeronautical Satellite System Definition Manual Module 5 (March1993): "Circuit mode service voice codec algorithm and terminal interfacefunction specification for facsimile and data services, Version 3 and corrigenda".SIST ETS 300 326-1:1999



Page 8ETS 300 326-1: August 1998[10]ARINC Characteristic 741: "Aviation satellite Communication System,Parts 1 to 4".[11]ETS 300 752: "Radio Equipment and Systems (RES); Terrestrial FlightTelecommunications System (TFTS); Packet mode data".[12]ES 200 794: "Electromagnetic Compatibility and Radio spectrum Matters (ERM);Terrestrial Flight Telecommunications System (TFTS); Circuit-mode voice-banddata services; Part 1: Group 3 fax support".[13]ITU-T Recommendation V.21 (1988): "300 bits per second duplex modemstandardized for use in the general switched telephone network".[14]ITU-T Recommendation V.22 bis (1988):"2 400 bits per second duplex modemusing the frequency division technique standardized for use on the generalswitched telephone network and on point-to-point 2-wire leased telephone-typecircuits".3Definitions and abbreviations3.1DefinitionsFor the purposes of this ETS, the following definitions apply:bearer service: A type of telecommunication service that provides the capability for the transmission ofsignals between user - network interfaces.teleservice: A type of telecommunication service that provides the complete capability, including terminalequipment functions, for communication between users according to protocols established by agreementbetween administrations and/or Recognized Private Operating Agencies (RPOAs).3.2AbbreviationsFor the purposes of this ETS, the following abbreviations apply:AECAircraft Equipment CodeAEECAirlines Electronic Engineering CommitteeAENAircraft Equipment NumberARINCAeronautical Radio INCorporatedASAircraft StationASIAircraft Station IdentityATAvionics TerminationATEAircraft Telecommunications EquipmentATEIAircraft Termination Equipment IdentifierATISDNAircraft Termination ISDNCCITTConsultative Committee on International Telegraphy and TelephonyCDSCabin Distribution SystemCSCabin SystemsCTUCabin Telecommunications UnitDTMFDual Tone Multi FrequencyEAECEuropean Airlines Electronics CommitteeFACFinal Assembly CodeGCCGround switching Centre CodeGCTGround station Cell TypeGENGround station Equipment NumberGSGround StationGSCGround Switching CentreGSICGround Station Identity CodeGSLATGround Station LatitudeGSLONGGround Station LongitudeGSNGround station Serial NumberGSSGround Station SystemSIST ETS 300 326-1:1999



Page 9ETS 300 326-1: August 1998ICAOInternational Civil Aviation OrganizationISDNIntegrated Services Digital NetworkMMMobility ManagementMSBMost Significant BitNDCNational Destination CodeNMNetwork ManagementPADPacket Assembler-DisassemblerPWRCTLPoWeR ConTroL level adjustmentRMINReceiver MINimum acceptable signal levelRPOARecognized Private Operating AgencySNRSerial NumbeRSPService ProviderTACType Approval CodeTDMATime Division Multiple AccessTFTSTerrestrial Flight Telecommunication SystemTIMnetwork TIMeTOTelecom OperatorUNUser NumberUTCCoordinated Universal TimeWARC 92World Administrative Radio Conference 19924General description of the TFTSThis clause contains an informative description of the TFTS. The basic TFTS architecture is describedtogether with a brief explanation of the various functional entities of the system. When appropriate,reference is made to other parts of this ETS where more detailed descriptions of functional entities areprovided. Reference has also been made to possible connections to external systems which are beyondthe scope of this ETS. These references are not intended to imply any technical or commercialimplementation for the service provided by TFTS.4.1Purpose of the TFTSThe TFTS provides a radio communication link between aircraft and ground stations which have access topublic fixed telecommunications networks. This enables aircraft passengers or users to access publictelecommunications services from the air. The principal services supported by the TFTS are as follows:a)telephony;b)facsimile group 3;c)paging services;d)data services.The services provided by TFTS are primarily aimed at commercial airliners but this does not preclude useof the system by smaller commercial regional aircraft operators or the general aviation sector.4.2Service coverageThe radio system of the TFTS is similar in nature to the cellular systems of the land mobile service. Thereare some important differences, especially the cell radii (typically 240 km) and the height coverage (inexcess of 43 000 feet). The mobiles of the service are aircraft in flight or on the ground in the starting orfinishing phases of flight.Three cell types are specified:en-route: providing a large area coverage at altitude;intermediate: providing coverage at lower altitude where required, especially in the vicinity of airports; andairport stations: for use on or immediately above the ground.SIST ETS 300 326-1:1999



Page 10ETS 300 326-1: August 19984.3TFTS architectureFigure 1 provides an illustrative overview of the telecommunications services to be provided to aircraft.Figure 2 provides a schematic block diagram of a terrestrial aeronautical telecommunication systemshowing the position of the TFTS elements.Figure 1: Aeronautical telecommunication services overviewSIST ETS 300 326-1:1999



Page 11ETS 300 326-1: August 1998Figure 2: TFTS block diagram4.3.1Aircraft Station (AS)The AS consists of three main entities:Avionics Termination (AT): provides the radio, control and telecommunications functions necessary forthe TFTS;Aircraft Telecommunications Equipment (ATE): provides on board switching and other functions forthe aircraft telecommunication facilities. Many of these on-board facilities would be realized in the CabinTelecommunications Unit (CTU) defined in ARINC Characteristic 746 [3]. ARINC are also defining thecharacteristics of a Cabin Distribution System (CDS); andCabin System (CS): provides telecommunication facilities to the passenger.The ATE and the CS may be realized in several ways with a variety of facilities. The specification of theseentities is outside the scope of this ETS. The ATE and CS may also support satellite and other terrestrialtelecommunication services. Aviation aspects of the AT, ATE and CS have been characterized by theEAEC and the AEEC. Aspects of the AT are published in ARINC Characteristic 752 [2]. Aspects of theATE are published in ARINC Characteristic 746 [3].SIST ETS 300 326-1:1999



Page 12ETS 300 326-1: August 19984.3.2Ground Station (GS)The GS provides the radio communication, line transmission and some limited control functions necessaryfor supporting simultaneous radio communication with several aircraft using the TFTS. The different typesof ground station are analogous to the cell types of the TFTS which are described in subclause 4.2.4.3.3Ground Switching Centre (GSC)The GSC provides the switching, control and fixed network access functions for the TFTS. Sometransmission control functions such as echo control may also be provided at a GSC. In addition, the GSCmay provide interfaces to other external systems required to provide a commercial public aeronauticalcorrespondence service (e.g. billing system, network management system).NOTE:A combination of GSs and an associated GSC is referred to as a Ground StationSystem (GSS).4.3.4Radio interfaceThe TFTS radio interface is described in ETS 300 326-2 [5]. The access types employed are TimeDivision Multiplex (TDM)/Time Division Multiple Access (TDMA) providing an aircraft capacity of four voicechannels per radio carrier when using standard rate speech coding. The carrier may also be configured toprovide several data services and a group 3 facsimile service. A lower rate speech service may also besupported when suitable voice coding devices are available.4.3.5Fixed network interfaceThe TFTS fixed network interface is characterized in terms of the services and facilities that would berequired for the TFTS to fully, and correctly, inter-work with the fixed network. Detailed networkinterworking specifications are not provided within this ETS as it is recognized that network and signallingvariations exist in each country's fixed network(s).4.3.6Interfaces with other systemsThe TFTS may interface to one or more administrative and network management systems. The realizationof these systems is outside the scope of this ETS and is a matter for the operators and users of the TFTS.5TFTS telecommunication servicesThe telecommunication services supported by TFTS are described in the general framework of bearerservices, teleservices and supplementary services. These descriptions are characterized by attributesdefining particular aspects of the service to be provided.5.1TFTS bearer servicesBearer services are characterized by attributes including information transfer mode, information transferrate, information transfer capability and structure.The TFTS provides a bearer capability between the ATE side of the AT and the termination of the TFTS atthe fixed network interface.The TFTS shall support both circuit switched and packet switched bearer services.5.1.1Speech bearer serviceThe TFTS shall support a speech 9,6 kbits/s bearer service and the attributes shall be as specified intable 1.SIST ETS 300 326-1:1999



Page 13ETS 300 326-1: August 1998Table 1: Speech 9,6 kbits/s bearer serviceInformation transferCircuit modeInformation transfer rateNot applicableInformation transfer capabilitySpeechStructureUnstructuredEstablishmentOn demandConfigurationPoint-to-pointSymmetryBi-directional symmetric5.1.2PagingThe TFTS shall support a paging bearer service and the attributes shall be as defined in table 2.Table 2: Paging bearer serviceInformation transferUnrestricted digitalInformation transfer rateNot applicableInformation transfer capabilityDigitalStructureUnstructuredEstablishmentOn demandConfigurationPoint-to-point or broadcastSymmetryUnit or Bi-directional5.2TFTS teleservicesTeleservices are characterized by attributes including bearer, higher layer and other general serviceattributes.The TFTS provides some of the capabilities for the provision of teleservices. It should be recognizedhowever that the full provision of a teleservice is dependent on the provision of terminal and otherfunctionality in systems external to the TFTS.The TFTS shall support speech teleservices and the attributes shall be as specified in table 3.Table 3: Speech teleservice attributesHigher LayerUser informationSpeechlayer 4 protocolNot applicablelayer 5 protocolNot applicablelayer 6 protocolNot applicablelayer 7 protocolNot applicableBearer capabilitySpeech 9,6 kbits/sGeneralSupplementary servicesNoneQuality of serviceclause 6 and clause 7Operational
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