WirelessCommunicationandNetworkWirelessPAN什么是蓝牙技术什么是蓝牙技术(Cont.)BluetoothBluetoothCharacteristics蓝牙的由来Historyandhi-tech……andtherealrunestone蓝牙的由来(Cont.)蓝牙的技术内容蓝牙的技术内容(Cont.)蓝牙的技术内容(Cont.)蓝牙技术蓝牙技术(Cont.)蓝牙技术指标和系统参数蓝牙技术中的名词术语蓝牙技术中的名词术语(Cont.)BluetoothOverviewOverviewBluetoothApplicationAreasBluetoothStandardsDocumentsHistoryanddevelopmentApplicationScenariosUsageModels蓝牙三合一电话PiconetsandScatternetsPiconetPiconet的主从设计考虑FormingapiconetScatternetProtocolArchitectureProtocolArchitectureProtocolArchitectureCoreProtocolsThreeClassesofTransmitters蓝牙规范BluetoothRadioSpecificationMACmechanismBluetooth采用跳频扩频技术Bluetooth的基带层HoppingSequenceSPhysicalLinksM设备和S设备之间的物理链路M设备和S设备之间的链路（续）BasebandRobustness半双工/全双工通信bluetooth的寻址PollingforTransmissionAlternateTransmissionExampleFrameFormatPacketTypesBluetoothPacketFieldsSCOPacketFrameFormatsSCOpayloadtypesACLPacketFrameFormatsACLPayloadtypesExample:DataRateofDH1ACLPacketTypesandAssociatedDataRatesTypesofAccessCodesAccessCodePacketHeaderFieldsPayloadFormatErrorCorrectionSchemesARQSchemeElementsBaseband:总结能量控制：根据接收信号强度要求发送者调整发送能量能力协商：交换版本号和所支持的特性QoS协商：轮询时间、延迟、传送能力同步：修正时钟偏差或者接受特殊的同步packet改变状态和传输模式：M和S角色的改变链路控制：控制link活动安全服务：认证、加密、密钥的分发StatesofaBluetoothdeviceBluetooth的信道控制微网的建立——inquiry模式微网的建立——Page模式EstablishingaConnectionPowerSavingModesConnectionManagement：ChannelControlLogicalChannelsChannelControlChannelControlStateTransitionDiagramInquiryProcedurePageProcedureSlaveConnectionStateModesBluetooth的L2CAP层L2CAP-LogicalLinkControlandAdaptationProtocolL2CAPlogicalchannelsBluetooth的逻辑信道（续）L2CAPpacketformatsL2CAPLogicalChannelsL2CAPPacketFieldsforConnectionlessServiceSignalingPacketPayloadL2CAPSignalingCommandCodesL2CAPSignalingCommandsL2CAPSignalingCommandsL2CAP连接：示例Bluetooth的服务发现协议（SDP）Bluetooth的串口仿真(RFCOMM)RFCOMMSeriallineemulationoverpacketbasedMACBluetooth与IPBluetooth与IP（续）Bluetooth与IPBluetoothAudioandSecurityBluetoothAudioBluetoothLinkSecurityLMPPDUsLMPPDUsLMPPDUsLMPPDUsFlowSpecificationParametersInterferenceInterferenceSIRatFHSSIE