chap15-Bluetooth-Techniques-無(wú)線網(wǎng)絡(luò)通信-英文課件_第1頁(yè)
chap15-Bluetooth-Techniques-無(wú)線網(wǎng)絡(luò)通信-英文課件_第2頁(yè)
chap15-Bluetooth-Techniques-無(wú)線網(wǎng)絡(luò)通信-英文課件_第3頁(yè)
chap15-Bluetooth-Techniques-無(wú)線網(wǎng)絡(luò)通信-英文課件_第4頁(yè)
chap15-Bluetooth-Techniques-無(wú)線網(wǎng)絡(luò)通信-英文課件_第5頁(yè)
已閱讀5頁(yè)，還剩79頁(yè)未讀， 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說(shuō)明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡(jiǎn)介

BluetoothTechniquesChapter15BluetoothTechniquesChapter151OverviewUniversalshort-rangewirelesscapabilityUses2.4-GHzbandAvailablegloballyforunlicensedusersDeviceswithin10mcanshareupto720kbpsofcapacitySupportsopen-endedlistofapplicationsData,audio,graphics,videoOverviewUniversalshort-rangeBluetoothApplicationAreasDataandvoiceaccesspointsReal-timevoiceanddatatransmissionsCablereplacementEliminatesneedfornumerouscableattachmentsforconnectionAdhocnetworkingDevicewithBluetoothradiocanestablishconnectionwithanotherwheninrangeBluetoothApplicationAreasDatBluetoothStandardsDocumentsCorespecificationsDetailsofvariouslayersofBluetoothprotocolarchitectureProfilespecificationsUseofBluetoothtechnologytosupportvariousapplicationsBluetoothStandardsDocumentsCProtocolArchitectureBluetoothisalayeredprotocolarchitectureCoreprotocolsCablereplacementandtelephonycontrolprotocolsAdoptedprotocolsCoreprotocolsRadioBasebandLinkmanagerprotocol(LMP)Logicallinkcontrolandadaptationprotocol(L2CAP)Servicediscoveryprotocol(SDP)ProtocolArchitectureBluetoothProtocolArchitectureCablereplacementprotocolRFCOMMTelephonycontrolprotocolTelephonycontrolspecification–binary(TCSBIN)AdoptedprotocolsPPPTCP/UDP/IPOBEXWAE/WAPProtocolArchitectureCablerepUsageModelsFiletransferInternetbridgeLANaccessSynchronizationThree-in-onephoneHeadsetUsageModelsFiletransferPiconetsandScatternetsPiconetBasicunitofBluetoothnetworkingMasterandonetosevenslavedevicesMasterdetermineschannelandphaseScatternetDeviceinonepiconetmayexistasmasterorslaveinanotherpiconetAllowsmanydevicestosharesameareaMakesefficientuseofbandwidthPiconetsandScatternetsPiconeWirelessNetworkConfigurationsWirelessNetworkConfigurationRadioSpecificationClassesoftransmittersClass1:Outputs100mWformaximumrangePowercontrolmandatoryProvidesgreatestdistanceClass2:Outputs2.4mWatmaximumPowercontroloptionalClass3:Nominaloutputis1mWLowestpowerRadioSpecificationClassesofFrequencyHoppinginBluetoothProvidesresistancetointerferenceandmultipatheffectsProvidesaformofmultipleaccessamongco-locateddevicesindifferentpiconetsFrequencyHoppinginBluetoothFrequencyHoppingTotalbandwidthdividedinto1MHzphysicalchannelsFHoccursbyjumpingfromonechanneltoanotherinpseudorandomsequenceHoppingsequencesharedwithalldevicesonpiconetPiconetaccess:Bluetoothdevicesusetimedivisionduplex(TDD)AccesstechniqueisTDMAFH-TDD-TDMAFrequencyHoppingTotalbandwidFrequencyHoppingFrequencyHoppingPhysicalLinksbetweenMasterandSlaveSynchronousconnectionoriented(SCO)Allocatesfixedbandwidthbetweenpoint-to-pointconnectionofmasterandslaveMastermaintainslinkusingreservedslotsMastercansupportthreesimultaneouslinksAsynchronousconnectionless(ACL)Point-to-multipointlinkbetweenmasterandallslavesOnlysingleACLlinkcanexistPhysicalLinksbetweenMasterBluetoothPacketFieldsAccesscode–usedfortimingsynchronization,offsetcompensation,paging,andinquiryHeader–usedtoidentifypackettypeandcarryprotocolcontrolinformationPayload–containsuservoiceordataandpayloadheader,ifpresentBluetoothPacketFieldsAccessTypesofAccessCodesChannelaccesscode(CAC)–identifiesapiconetDeviceaccesscode(DAC)–usedforpagingandsubsequentresponsesInquiryaccesscode(IAC)–usedforinquirypurposesTypesofAccessCodesChannelaAccessCodePreamble–usedforDCcompensation0101ifLSBofsyncwordis01010ifLSBofsynchwordis1Syncword–64-bits,derivedfrom:7-bitBarkersequenceLoweraddresspart(LAP)Pseudonoise(PN)sequenceTrailer0101ifMSBofsyncwordis11010ifMSBofsyncwordis0AccessCodePreamble–usedforPacketHeaderFieldsAM_ADDR–contains“activemode”addressofoneoftheslavesType–identifiestypeofpacketFlow–1-bitflowcontrolARQN–1-bitacknowledgmentSEQN–1-bitsequentialnumberingschemesHeadererrorcontrol(HEC)–8-biterrordetectioncodePacketHeaderFieldsAM_ADDR–PayloadFormatPayloadheaderL_CHfield–identifieslogicalchannelFlowfield–usedtocontrolflowatL2CAPlevelLengthfield–numberofbytesofdataPayloadbody–containsuserdataCRC–16-bitCRCcodePayloadFormatPayloadheaderErrorCorrectionSchemes1/3rateFEC(forwarderrorcorrection)Usedon18-bitpacketheader,voicefieldinHV1packet2/3rateFECUsedinDMpackets,datafieldsofDVpacket,FHSpacketandHV2packetARQUsedwithDMandDHpacketsErrorCorrectionSchemes1/3raARQSchemeElementsErrordetection–destinationdetectserrors,discardspacketsPositiveacknowledgment–destinationreturnspositiveacknowledgmentRetransmissionaftertimeout–sourceretransmitsifpacketunacknowledgedNegativeacknowledgmentandretransmission–destinationreturnsnegativeacknowledgementforpacketswitherrors,sourceretransmitsARQSchemeElementsErrordetecLogicalChannelsLinkcontrol(LC)Linkmanager(LM)Userasynchronous(UA)Userisochronous(UI)Usesynchronous(US)LogicalChannelsLinkcontrol(ChannelControlStatesofoperationofapiconetduringlinkestablishmentandmaintenanceMajorstatesStandby–defaultstateConnection–deviceconnectedChannelControlStatesofoperaChannelControlInterimsubstatesforaddingnewslavesPage–deviceissuedapage(usedbymaster)Pagescan–deviceislisteningforapageMasterresponse–masterreceivesapageresponsefromslaveSlaveresponse–slaverespondstoapagefrommasterInquiry–devicehasissuedaninquiryforidentityofdeviceswithinrangeInquiryscan–deviceislisteningforaninquiryInquiryresponse–devicereceivesaninquiryresponseChannelControlInterimsubstatStateTransitionDiagramStateTransitionDiagramInquiryProcedurePotentialmasteridentifiesdevicesinrangethatwishtoparticipateTransmitsIDpacketwithinquiryaccesscode(IAC)OccursinInquirystateDevicereceivesinquiryEnterInquiryResponsestateReturnsFHSpacketwithaddressandtiminginformationMovestopagescanstateInquiryProcedurePotentialmasPageProcedureMasterusesdevicesaddresstocalculateapagefrequency-hoppingsequenceMasterpageswithIDpacketanddeviceaccesscode(DAC)ofspecificslaveSlaverespondswithDACIDpacketMasterrespondswithitsFHSpacketSlaveconfirmsreceiptwithDACIDSlavesmovestoConnectionstatePageProcedureMasterusesdeviSlaveConnectionStateModesActive–participatesinpiconetListens,transmitsandreceivespacketsSniff–onlylistensonspecifiedslotsHold–doesnotsupportACLpacketsReducedpowerstatusMaystillparticipateinSCOexchangesPark–doesnotparticipateonpiconetStillretainedaspartofpiconetSlaveConnectionStateModesAcBluetoothAudioVoiceencodingschemes:Pulsecodemodulation(PCM)Continuouslyvariableslopedelta(CVSD)modulationChoiceofschememadebylinkmanagerNegotiatesmostappropriateschemeforapplicationBluetoothAudioVoiceencodingBluetoothLinkSecurityElements:Authentication–verifyclaimedidentityEncryption–privacyKeymanagementandusageSecurityalgorithmparameters:UnitaddressSecretauthenticationkeySecretprivacykeyRandomnumberBluetoothLinkSecurityElementLMPPDUsGeneralresponseSecurityServiceAuthenticationPairingChangelinkkeyChangecurrentlinkkeyEncryptionLMPPDUsGeneralresponseLMPPDUsTime/synchronizationClockoffsetrequestSlotoffsetinformationTimingaccuracyinformationrequestStationcapabilityLMPversionSupportedfeaturesLMPPDUsTime/synchronizationLMPPDUsModecontrolSwitchmaster/slaveroleNamerequestDetachHoldmodeSniffmodeParkmodePowercontrolLMPPDUsModecontrolLMPPDUsModecontrol(cont.)Channelquality-drivenchangebetweenDMandDHQualityofserviceControlofmultislotpacketsPagingschemeLinksupervisionLMPPDUsModecontrol(cont.)L2CAPProvidesalink-layerprotocolbetweenentitieswithanumberofservicesReliesonlowerlayerforflowanderrorcontrolMakesuseofACLlinks,doesnotsupportSCOlinksProvidestwoalternativeservicestoupper-layerprotocolsConnectionserviceConnection-modeserviceL2CAPProvidesalink-layerproL2CAPLogicalChannelsConnectionlessSupportsconnectionlessserviceEachchannelisunidirectionalUsedfrommastertomultipleslavesConnection-orientedSupportsconnection-orientedserviceEachchannelisbidirectionalSignalingProvidesforexchangeofsignalingmessagesbetweenL2CAPentitiesL2CAPLogicalChannelsConnectiL2CAPPacketFieldsforConnectionlessServiceLength–lengthofinformationpayload,PSMfieldsChannelID–2,indicatingconnectionlesschannelProtocol/servicemultiplexer(PSM)–identifieshigher-layerrecipientforpayloadNotincludedinconnection-orientedpacketsInformationpayload–higher-layeruserdataL2CAPPacketFieldsforConnecSignalingPacketPayloadConsistsofoneormoreL2CAPcommands,eachwithfourfieldsCode–identifiestypeofcommandIdentifier–usedtomatchrequestwithreplyLength–lengthofdatafieldforthiscommandData–additionaldataforcommand,ifnecessarySignalingPacketPayloadConsisL2CAPSignalingCommandCodesL2CAPSignalingCommandCodesL2CAPSignalingCommandsCommandrejectcommandSenttorejectanycommandConnectioncommandsUsedtoestablishnewconnectionsConfigurecommandsUsedtoestablishalogicallinktransmissioncontractbetweentwoL2CAPentitiesL2CAPSignalingCommandsCommanL2CAPSignalingCommandsDisconnectioncommandsUsedtoterminatelogicalchannelEchocommandsUsedtosolicitresponsefromremoteL2CAPentityInformationcommandsUsedtosolicitimplementation-specificinformationfromremoteL2CAPentityL2CAPSignalingCommandsDisconFlowSpecificationParametersServicetypeTokenrate(bytes/second)Tokenbucketsize(bytes)Peakbandwidth(bytes/second)Latency(microseconds)Delayvariation(microseconds)FlowSpecificationParametersSBluetoothTechniquesChapter15BluetoothTechniquesChapter1543OverviewUniversalshort-rangewirelesscapabilityUses2.4-GHzbandAvailablegloballyforunlicensedusersDeviceswithin10mcanshareupto720kbpsofcapacitySupportsopen-endedlistofapplicationsData,audio,graphics,videoOverviewUniversalshort-rangeBluetoothApplicationAreasDataandvoiceaccesspointsReal-timevoiceanddatatransmissionsCablereplacementEliminatesneedfornumerouscableattachmentsforconnectionAdhocnetworkingDevicewithBluetoothradiocanestablishconnectionwithanotherwheninrangeBluetoothApplicationAreasDatBluetoothStandardsDocumentsCorespecificationsDetailsofvariouslayersofBluetoothprotocolarchitectureProfilespecificationsUseofBluetoothtechnologytosupportvariousapplicationsBluetoothStandardsDocumentsCProtocolArchitectureBluetoothisalayeredprotocolarchitectureCoreprotocolsCablereplacementandtelephonycontrolprotocolsAdoptedprotocolsCoreprotocolsRadioBasebandLinkmanagerprotocol(LMP)Logicallinkcontrolandadaptationprotocol(L2CAP)Servicediscoveryprotocol(SDP)ProtocolArchitectureBluetoothProtocolArchitectureCablereplacementprotocolRFCOMMTelephonycontrolprotocolTelephonycontrolspecification–binary(TCSBIN)AdoptedprotocolsPPPTCP/UDP/IPOBEXWAE/WAPProtocolArchitectureCablerepUsageModelsFiletransferInternetbridgeLANaccessSynchronizationThree-in-onephoneHeadsetUsageModelsFiletransferPiconetsandScatternetsPiconetBasicunitofBluetoothnetworkingMasterandonetosevenslavedevicesMasterdetermineschannelandphaseScatternetDeviceinonepiconetmayexistasmasterorslaveinanotherpiconetAllowsmanydevicestosharesameareaMakesefficientuseofbandwidthPiconetsandScatternetsPiconeWirelessNetworkConfigurationsWirelessNetworkConfigurationRadioSpecificationClassesoftransmittersClass1:Outputs100mWformaximumrangePowercontrolmandatoryProvidesgreatestdistanceClass2:Outputs2.4mWatmaximumPowercontroloptionalClass3:Nominaloutputis1mWLowestpowerRadioSpecificationClassesofFrequencyHoppinginBluetoothProvidesresistancetointerferenceandmultipatheffectsProvidesaformofmultipleaccessamongco-locateddevicesindifferentpiconetsFrequencyHoppinginBluetoothFrequencyHoppingTotalbandwidthdividedinto1MHzphysicalchannelsFHoccursbyjumpingfromonechanneltoanotherinpseudorandomsequenceHoppingsequencesharedwithalldevicesonpiconetPiconetaccess:Bluetoothdevicesusetimedivisionduplex(TDD)AccesstechniqueisTDMAFH-TDD-TDMAFrequencyHoppingTotalbandwidFrequencyHoppingFrequencyHoppingPhysicalLinksbetweenMasterandSlaveSynchronousconnectionoriented(SCO)Allocatesfixedbandwidthbetweenpoint-to-pointconnectionofmasterandslaveMastermaintainslinkusingreservedslotsMastercansupportthreesimultaneouslinksAsynchronousconnectionless(ACL)Point-to-multipointlinkbetweenmasterandallslavesOnlysingleACLlinkcanexistPhysicalLinksbetweenMasterBluetoothPacketFieldsAccesscode–usedfortimingsynchronization,offsetcompensation,paging,andinquiryHeader–usedtoidentifypackettypeandcarryprotocolcontrolinformationPayload–containsuservoiceordataandpayloadheader,ifpresentBluetoothPacketFieldsAccessTypesofAccessCodesChannelaccesscode(CAC)–identifiesapiconetDeviceaccesscode(DAC)–usedforpagingandsubsequentresponsesInquiryaccesscode(IAC)–usedforinquirypurposesTypesofAccessCodesChannelaAccessCodePreamble–usedforDCcompensation0101ifLSBofsyncwordis01010ifLSBofsynchwordis1Syncword–64-bits,derivedfrom:7-bitBarkersequenceLoweraddresspart(LAP)Pseudonoise(PN)sequenceTrailer0101ifMSBofsyncwordis11010ifMSBofsyncwordis0AccessCodePreamble–usedforPacketHeaderFieldsAM_ADDR–contains“activemode”addressofoneoftheslavesType–identifiestypeofpacketFlow–1-bitflowcontrolARQN–1-bitacknowledgmentSEQN–1-bitsequentialnumberingschemesHeadererrorcontrol(HEC)–8-biterrordetectioncodePacketHeaderFieldsAM_ADDR–PayloadFormatPayloadheaderL_CHfield–identifieslogicalchannelFlowfield–usedtocontrolflowatL2CAPlevelLengthfield–numberofbytesofdataPayloadbody–containsuserdataCRC–16-bitCRCcodePayloadFormatPayloadheaderErrorCorrectionSchemes1/3rateFEC(forwarderrorcorrection)Usedon18-bitpacketheader,voicefieldinHV1packet2/3rateFECUsedinDMpackets,datafieldsofDVpacket,FHSpacketandHV2packetARQUsedwithDMandDHpacketsErrorCorrectionSchemes1/3raARQSchemeElementsErrordetection–destinationdetectserrors,discardspacketsPositiveacknowledgment–destinationreturnspositiveacknowledgmentRetransmissionaftertimeout–sourceretransmitsifpacketunacknowledgedNegativeacknowledgmentandretransmission–destinationreturnsnegativeacknowledgementforpacketswitherrors,sourceretransmitsARQSchemeElementsErrordetecLogicalChannelsLinkcontrol(LC)Linkmanager(LM)Userasynchronous(UA)Userisochronous(UI)Usesynchronous(US)LogicalChannelsLinkcontrol(ChannelControlStatesofoperationofapiconetduringlinkestablishmentandmaintenanceMajorstatesStandby–defaultstateConnection–deviceconnectedChannelControlStatesofoperaChannelControlInterimsubstatesforaddingnewslavesPage–deviceissuedapage(usedbymaster)Pagescan–deviceislisteningforapageMasterresponse–masterreceivesapageresponsefromslaveSlaveresponse–slaverespondstoapagefrommasterInquiry–devicehasissuedaninquiryforidentityofdeviceswithinrangeInquiryscan–deviceislisteningforaninquiryInquiryresponse–devicereceivesaninquiryresponseChannelControlInterimsubstatStateTransitionDiagramStateTransitionDiagramInquiryProcedurePotentialmasteridentifiesdevicesinrangethatwishtoparticipateTransmitsIDpacketwithinquiryaccesscode(IAC)OccursinInquirystateDevicereceivesinquiryEnterInquiryResponsestateReturnsFHSpacketwithaddressandtiminginformationMovestopagescanstateInquiryProcedurePotentialmasPageProcedureMasterusesdevicesaddresstocalculateapagefrequency-hoppingsequenceMasterpageswithIDpacketanddeviceaccesscode(DAC)ofspecificslaveSlaverespondswithDACIDpacketMasterrespondswithitsFHSpacketSlaveconfirmsreceiptwithDACIDSlavesmovestoConnectionstatePageProcedureMasterusesdeviSlaveConnectionStateModesActive–participatesinpiconetListens,transmitsandreceivespacketsSniff–onlylistensonspecifiedslotsHold–doesnotsupportACLpacketsReducedpowerstatusMaystillparticipateinSCOexchangesPark–doesnotparticipateonpiconetStillretainedaspartofpiconetSlaveConnectionStateModesAcBluetoothAudioVoiceencodingschemes:Pulsecodemodulation(PCM)Continuouslyvariableslopedelta(CVSD)modulationChoiceofschememadebylinkmanagerNegotiatesmostappropriateschemeforapplicationBluetoothAudioVoiceencodingBluetoothLinkSecurityElements:Authentication–verifyclaimedidentityEncryption–privacyKeymanagementandusageSecurityalgorithmparameters:UnitaddressSecretauthenticationkeySecretprivacykeyRandomnumberBluetoothLinkSecurityElementLMPPDUsGeneralresponseSecurityServiceAuthenticationPairingChangelinkkeyChangecurrentlinkkeyEncryptionLMPPDUsGeneralresponseLMPPDUsTime/synchronizationClockoffsetrequestSlotoffsetinformationTimingaccuracyinformationrequestStationcapabilityLMPversionSupportedfeaturesLMPPDUsTime/synchronizationLMPPDUsModecontrolSwitchmaster/slaveroleNamerequestDetachHoldmodeSniffmodeParkmodePowercontrolLMPPDUsModecontrolLMPPDUsModecontrol(cont.)Channelquality-drivenchangebetweenDMandDHQualityofserviceControlofmultislotpacketsPagingschemeLinksupervisionLMPPDUsModecontrol(cont.)L2CAPProvidesalink-layerprotocolbetwe

溫馨提示

  • 1. 本站所有資源如無(wú)特殊說(shuō)明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽，若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫(kù)網(wǎng)僅提供信息存儲(chǔ)空間，僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請(qǐng)與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

最新文檔

評(píng)論

0/150

提交評(píng)論