WCDMAOverview
ContentsSystemArchitectureProtocolStructureofInterfacePhysicalChannel
IuNetActCNRANOMUuUE =UserEquipmentRAN =RadioAccessNetworkCN =CoreNetworkNetAct =NetworkManagementSubsystemsofNokia3GNetworkUE
WCDMANetworkArchitectureCircuitSwitchedCoreNetworkGGSN3GSGSNGPRSUSIMcardWCDMAmobileGSM/WCDMAmobileRANWCDMABTSWCDMABTSRNCRNCMSCHLRMGWINSCPSRRPSCoreNetwork(PSTN/ISDN)InternetTCP/IP)GSM/WCDMAmobileCBC
UTRANInterfaces
TerritorialInterfaceProtocolStructure
IubInterface
IurInterface
Iu-CSandIu-PS
AirInterfaceProtocolarchitectureTS25.301L3controlcontrolcontrolcontrolLogicalChannelsTransportChannelsC-planesignallingU-planeinformationPHYL2/MACL1RLCL2/RLCMACRLCRLCRLCRLCRLCRLCRLCBMCL2/BMCcontrolPDCPPDCPL2/PDCPRadioBearersRRCTS25.321TS25.322TS25.331
AirInterfaceProtocol
RRC:RadioResourceControl
RLC:RadioLinkControlProtocolSequencecontrol
MAC:MediumAccessControlMapping
ProceduresinLayer2
ProceduresinLayer1
ProceduresinLayer1(Exp.)
FunctionofphysicalchannelNodeB
UE
P-CCPCH-PrimaryCommonControlPhysicalChannelSCH-SynchronisationChannelP-CPICH-PrimaryCommonPilotChannel
S-CPICH-SecondaryCommonPilotChannelCellbroadcastchannelsDPDCH-DedicatedPhysicalDataChannelDPCCH-DedicatedPhysicalControlChannelDedicatedchannelsPagingchannelsPICH-PagingIndicatorChannelS-CCPCH-SecondaryCommonControlPhysicalChannelPRACH-PhysicalRandomAccessChannelAICH-AcquisitionIndicatorChannelRandomaccesschannels
PhysicalChannelAphysicalchannelisdefinedbyaspecificcarrierfrequency,code(scramblingcode,spreadingcode)andrelativephaseInUMTSsystem,thedifferentcode(scramblingcodeorspreadingcode)candistinguishthechannelsMostchannelsconsistofradioframesandtimeslots,andeachradioframeconsistsof15timeslotsTwotypesofphysicalchannel:ULandDLPhysicalChannelFrequency,Code,Phase
FDD-Downlink:FrameStructureTFCI:TransportFormatCombinationIdentifierTPC:T