爱立信WCDMA无线接口培圳资料WCDMA Air Interface Training WCDMA Air Interface Training Part1 CDMA Wireless Technology Evolution from 2G to 3GThe CDMA TransmitterVoice CodingCRC CodingFEC CodingInterleavingChannelization Coding (Orthogonal/Walsh Codes)Spread Spectrum Multiple Access Coding (PN Codes)Serial-to-Parallel Data ConversionSpectral Containment Filtering I/Q ModulationPart 2 CDMA Power Control,RAKE Receiver,and Soft HandoverCDMA Reception IssuesUnequal received power levels degrade SSMA performanceNear-Far Ratio, terrain, RF obstacles, “Turn-the-Corner” effects, ...Multipath fading cancellationTime of Arrival delay spreadPart 3 CDMA Capacity ConsiderationsCell PlanningFDMA systemsFrequency Reuse PlanningSNR Link Budget TDMA systemsFrequency Reuse PlanningTimeslot AllocationSNR Link Budget CDMA systemsCode Reuse PlanningSNR Link BudgetInterference Link Budget英文版的。。