Project 25 InteroPerable communIcatIons for PublIc safety agencIes

WHIte PaPer September2011

WHIte PaPerproject25:InteroperablecommunIcatIonSforpublIcSafetyagencIeS

Whenanemergencystrikes,whetheritisamulti-caraccidentorahurricane,firstrespondersneedtocoordinateaneffectiveresponse.andattheheartofaneffectiveresponseistheradiocommunicationsbetweenofficersinthesameagenciesandacrossmultipleagencies.aroundtheworldpublicsafetyagencieshaveworkedwithindustryleaderstodevelopandenhanceastandardtoenableinteroperablecommunications.

thetIa-102suiteofstandardsisusedforthedesignofproject25(p25)interoperabledigitaltwo-waywirelesscommunicationproducts.Itisanevolvingstandarduniquelydevelopedbybothequipmentmanufacturersandpublicsafetyuserstomeettheneedsofthepublicsafetycommunityaroundtheworld.thestandardenablesinteroperabilitybetweenmultiplemanufacturer’sp25products.

establIsHed and fully Vetted standardproject25hasatwenty-yearhistorywiththepublicsafetycommunity.Itwasestablishedinoctober1989whenapco(associationofpublicSafetycommunicationsofficials),naStD(nationalassociationofStatetelecommunicationsDirectors),ncS(nationalcommunicationsSystem),ntIa(nationaltelecommunicationsandInformationadministration),andnSa(nationalSecurityagency)agreedtothecreationoftheapco-naStD-feDproject25.Sincethebeginning,thestandardhasbeenuniqueinthatithashadtheinvolvementofpublicsafetyagenciesalongsideindustryleaders.

Source:project25technologyInterestgroup(ptIg),july2011

Project 25 systems dePloyed around tHe World

Afghanistan Algeria Angola Antigua and Barbuda Argentina Australia Austria Azerbaijan BahamasBahrain

Bangladesh Barbados BermudaBotswanaBrazil Brunei CanadaChile China ColombiaCosta Rica

Czech Republic DenmarkEcuador Egypt El Salvador Eritrea Fiji Finland France Germany Guam

GuatemalaHong Kong India IndonesiaIraq Ireland Israel Italy JamaicaJapan Kazakhstan

Kenya KuwaitLaosLatvia Lebanon LuxembourgMalaysia MexicoMorocco NepalNew Zealand

NigeriaPakistan Panama Papua New Guinea Paraguay Peru PhilippinesPoland Puerto RicoRussia Saudi Arabia

Singapore Slovenia South KoreaSpain Sri Lanka Sweden SwitzerlandTaiwan Thailand Trinidad and Tobago

Tunisia Turkey United KingdomUnited StatesUnited Arab Emirates Venezuela VietnamZimbabwe

WHIte PaPerproject25:InteroperablecommunIcatIonSforpublIcSafetyagencIeS

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WorldWIde adoPtIonproject25iswidelyadoptedbypublicsafetyagenciesacrossnorthamericaincludinglocal,county,tribal,stateandfederalagencies.Italsohasthesupportoftheu.S.DepartmentofHomelandSecurity(DHS).theDHSofficeofemergencycommunications,incoordinationwiththeofficeofInteroperabilityandcompatibility,developedtheannualSafecomrecommendedguidanceforfederalgrantprograms.theguidanceforfiscalyear2011specifies,“granteesmustensurethatdigitalvoicesystemsandequipmentpurchasedwithfederalgrantfundingiscompliantwiththeproject25(p25),unlessotherwisenotedinaprogram’sgrantguidance.”*

aroundtheworldgovernmentagenciesfromaustraliatorussiatoSouthamericahavealsoadoptedproject25systemsfortheirmissioncriticalcommunications.

p25hasalsobeenadoptedbymanyindustriessuchasutilities,airports,transit,petroleumandchemicalcompaniesthatrelyonmissioncriticalcommunicationsandinteroperabilitywithgovernmentalpublicsafetyagenciesinanemergency.

eVolVIng suIte of standardsthesuiteofproject25standardscontinuetoexpandasnewtechnologicalenhancementsandinnovationsbecomeavailable.thereareairinterfaces,wirelineinterfaces,securityinterfaces,datainterfaces,anddataapplicationsthatmakeupthesuiteofstandardswiththemostrecentadditionsbeingthetrunkedp25tDmacommonairInterface(caI)andthetrunkedInter-rfSubsystemInterface(ISSI).

common aIr Interfacethecommonairinterfacespecifiesthetypeandcontentofsignalstransmittedbycompliantradios.therearetwop25caI’s,thep25fDmacaIandthep25tDmacaI.

*Viewthe2011Safecomrecommendedguidanceforfederalgrantprogramshttp://www.safecomprogram.gov/SitecollectionDocuments/fy_2011_Safecom_guidance_121510.pdf

common aIr Interface

attrIbutes P25 fdma P25 tdma

Vocoder full-ratevocoder Half-ratevocoder

Channel Bandwidth 12.5KHzfDma 12.5KHztDma(6.25e)

Modulation c4fm H-cpm/H-DQpSK

Encryption aeS aeS

Voice Channel Data Rate 9.6kbps 12kbps

Control Channel Data Rate 9.6kbps 9.6kbps

p25fDmacaIsupportsbothtrunkingandconventionalmodes.p25tDmacaIsupportstrunkingonly.

thep25fDmacaIisthemostwidelydeployedproject25interfaceinthesuiteofstandards.thep25tDmatrunkedsuiteoftIa-102standardsaddstDmavoiceservicetotheexistingp25fDmatrunkedvoiceandpacketdataservices.

p25tDmatrunkingoperationwillmeetthe2011fccequipmentcertificationrequirementfor6.25kHzchannelequivalencemodeinuHfandVHfbandsandthe2015fccequipmentcertificationrequirementfor6.25kHzequivalencemodein700mHzbandplans.Itwillalsomeetthe6.25kHzchannelequivalence2015fccregulatoryrequirementforoperationbynewlicenseesinthe700mHzbandplansandthe2017fccregulatoryrequirementforoperationbyalllicenseesinthe700mHzbandplans.Itisimportanttonotethat700mHzinteroperabilitychannelsremainfDma12.5kHzandarenotaffectedbythesefccregulatoryrequirementsfor6.25kHzchannelequivalence.

Inter-rf subsystem Interface (IssI)thep25ISSIisawireline,networkIp-basedsolutionthatbuildsontoday’sp25caI.

akeyadvantageofwirelineinteroperabilitysolutionsisthatp25systemswithdifferentsystemIDs,differentuserdatabasesanddifferentrfbandscanbeinterconnected.Wirelinesolutionskeepthetrafficdigitallyvocodedandencryptedforgreaterperformanceandsecurity.ISSIallowspublicsafetyagenciesto:

•utilizethecoverageareasofexistingconnectednetworks,whichmightspanthousandsofsquaremiles.

•maintainsecure,encryptedtrafficacrossthenetworks.

•roamontoconnectednetworksandstilltalkbacktotheirhomeusersandhomedispatcher.

For more details regarding these interfaces, please see the TIA Telecommunication Industry Association) web site: www.tiaonline.org/standards/

otHer Interfacesproject25hasotherinterfacesincluding:

• subscriber data Peripheral Interface –specifiestheportthroughwhichmobileandportableradiosconnecttolaptopsordatanetworks

• fixed station Interface (fsI) –specifiesasetofmandatorymessagestosupportdigitalvoice,data,encryptionandtelephoneinterconnectforwirelinecommunicationtoaconventionalfixedstation

• console subsystem Interface (cssI) –specifiesthebasicmessagingtointerfaceaconsolesubsystemtoap25rfsubsystem

• data network Interface–specifiestherfsubsystem’sconnectionstocomputers,datanetworks,orexternaldatasources

• telephone Interconnect Interface–specifiestheinterfacetopublicSwitchedtelephonenetwork(pStn)tosupportbothanalogandISDntelephoneinterfaces

multI-Vendor sourcIngtherearethirty-sixproject25equipmentmanufacturersandserviceprovidersofferingawidearrayofp25equipment:stations,repeaters,mobiles,portables,

WHIte PaPerproject25:InteroperablecommunIcatIonSforpublIcSafetyagencIeS

motorola,Inc.1301e.algonquinroad,Schaumburg,Illinois60196u.S.a.motorola.com/project25

motorola,moto,motorolaSolutIonSandtheStylizedmlogoaretrademarksorregisteredtrademarksofmotorolatrademarkHoldings,llcandareusedunderlicense.allothertrademarksarethepropertyoftheirrespectiveowners.©2010motorola,Inc.allrightsreserved.ro-26-1005c

Project 25 InformatIon sources•project25technologyInterestgroup(ptIg)www.project25.org

•tIa(telecommunicationIndustryassociation)www.tiaonline.org/standards/

•motorolawww.motorola.com/project25

motorola commItmentmotorolaisproudtobepartoftheproject25/tIa-102standardizationprocessand,alongwithothermanufacturers,provideextensivetechnicalresourcesinthedevelopmentandmaintenanceofthestandard.

Sincethe1990’smotorolahasinvestedinproject25,developingtheaStro®25portfolioofnetworks,devices,applicationsandservices.Withover350aStro25systemsandover2millionp25capableunitsdeployedworldwide,wearecommittedtothestandardandsupportthousandsofpublicsafetyagenciesastheymeettheirinteroperabilityrequirements.

asthestandardevolvesinthefuture,motorolalooksforwardtoacontinuedrelationshipwiththestandardbodyandpublicsafetyuserstoenhanceinteroperabilityforfirstresponders.

consoles,software,testequipment,andservicessuchassystemintegrationandconsultantservices**.thedepthanddiversityoftheseproject25offeringsprovidespublicsafetyagencieswiththeconfidencethattheyhaveoptionstomeettheirneeds.

additionally,thecompetitionwithintheproject25marketspacecontinuestogrowandtodrivenewp25productandserviceenhancementsandinnovations.

**Source:project25technologyInterestgroup(ptIg)-project25equipmentmanufacturerslist,revisedjuly2011”http://www.project25.org/images/stories/ptig/docs/manufacturer_Information/p25_ptIg_memberlist_2011_07_v1.pdf

joIn tHe standards Processproject25isuniqueinthatpublicsafetypractitionersareapartofthestandardsdevelopmentprocess.

publicSafetypractitionerscanparticipateinthestandardsdevelopmentprocessthruthep25userneedsSub-committeewhichdefinesandprioritizesuserrequirementsforpossiblep25/tIastandardization.apublicSafetypractitionercanalsobeamemberofanapIctaskgroupsuchasthetDmataskgroupwhichservesasthevenuefordraftingthestandarddocuments.

tolearnmoreinformationortojoingotothetIawebsite.