典型的手机RF电路设计83080 Receiver Architectures and Synchronization in Digital CommunicationsPractical RF Architectures for GSM and WCDMA Mobile Terminals1 NOKIATTKK00.PPT/ 18.10.2000 / Mikko PesolaMobile Generations 1st generation systems, analog NMT, AMPS, TACS 2nd generation systems, digital GSM, IS-136 TDMA, IS-95 CDMA, PDC 3rd generation systems, digital wide band WCDMA standards have been prepared by ETSI (Europe), ARIB (Japan), TIA (USA),... 3GPP1 is a joint project that combines all proposals into one standard Harmonized standard includes three modes Direct sequence mode based on 3GPP (UTRA2/FDD) Multi carrier mode based on CDMA2000 (USA proposal) TDD mode based on 3GPP (UTRA/TDD)1) 3GPP = 3rd Generation Partnership Project 2) UTRA = Universal Terrestrial Radio Access2 NO……
猜您喜欢
评论