1、TD-SCDMACDMA2000WCDMAhttp:/bbs.tong- 5 IMT-2000 5 3 CDMAMC-CDMA(cdma2000)DS-CDMA(WCDMA)CDMA TDD(TD-SCDMA UTRA TDD)TDD TD-SCDMA 3G -2 TDD FDD -20-30KHzFDD3G 8kit/s 2Mit/s3G 3G 21 TDD 3G FDD 3G /FDD /22 TD-SCDMA TDD TDMA TD-SCDMA TDDCDMA2Mbit/sTD-SCDMA TDD CDMA FDD /TD-SCDMA /TDD TD-SCDMA 3 TD-SCDMAWC
2、DMAcdma2000 3G WCDMA TD-SCDMA 3GPP cdma2000 3GPP2 CDMA TD-SCDMAWCDMAcdma2000 31 TD-SCDMA 1.23MHz1.28MchipsSmart AntennaCDMASynchronous CDMASoftware RadioCDMADS-CDMAAMR GSM GSMGPRS GSMGPRS GPS 32 WCDMA 5MHz3.84MchipsTSTDSTTDFBTDTurbo 2Mbits BPSKQPSKAMR GSM GSMGPRS GSMGPRS MAP GPRS WCDMAGffo 33 cdma20
3、00 cdma2000-1X cdma2000-3X cdma2000-1X 1.25MHz1.2288Mchipscdma2000-3X CDMA 3 1.25MHz5MHz3.6864MchipsIS-95ABOTDSTSTurbo cdma2000-1x 433.5kbits +cdma2000-1xDO 2.4Mbits cdma2000-3x 2Mbits 5ms10ms20ms40ms80msF-QPCHANSI-41 ANSI-41GPS 4 TD-SCDMAWCDMAcdma2000 TD-SCDMA WCDMA cdma2000 WCDMA WCDMA cdma2000 TD
4、-SCDMA 3GPP2 2.4Mbits cdma20001xDO-1ITU 1900MHz-2025MHzFDD,2110MHZ-2170MHZFDD2110MHZ-2170MHZ(TDD )3 TD-SCDMA 2110MHZ-2170MHZ WCDMAcdma 2000 1900MHz-2025MHz,2110MHZ-2170MHZ2TDD:IPTD-SCDMA TDD FDDWCDMACDMA 2000 FDD 3TD-SCDMA SDMACDMAFDMATDMAINTERCELLINTRACELLCCIMAI ISIWCDMAcdma200043G CDMA FCADCA RCA
5、IP 3G DCA RCATD-SCDMA DCA TD-SCDMA 53G CDMA WCDMAWCDMA GPSSCH RAKE cdma2000IS-95 WCDMA TD-SCDMA3G CDMA CDMA TD-SCDMA 63G CDMA TD-SCDMA GSM TD-SCDMA +0-20bite/sTD-SCDMA TDMA CDMA TD-SCDMA TD-SCDMA 5 WCDMAcdma2000 TD-SCDMA TDDSCDMA 2M TDDSCDMA TDDSCDMA FDMATDMA CDMA TD-SCDMA 1TD-SCDMA CDMA TDMA TD-SCD
6、MA 2TD-SCDMA IubAGbIuIuR TD-SCDMA 2G 2.5G GSM 3G 3TD-SCDMA 1.6M2M 3G 4TD-SCDMA CDMA TDMA 5TD-SCDMA -6TD-SCDMA TD-SCDMA 250km/h UMTS(3GPP)7TD-SCDMA TD-SCDMA UTRA TDD 308TD-SCDMA 6 FDD -TD-SCDMA TD-SCDMA TD-SCDMA GSM TDD TD-SCDMA 4 TD-SCDMA TD-SCDMA TD-SCDMA TD-SCDMATD-SCDMA(3G)1998ITU()ITU3GPP()TD-SC
7、DMA* ? * ? * ? * ? TD-SCDMA* ? * ? * ? * ? * ? TD-SCDMA* ? * ? TD-SCDMATD-SCDMA-?TD-SCDMATime Division-Synchronous Code Division Multiple AccessITUCWTS3GPPTDDTDDTDMATDD/CDMATDMAFDMACDMATD-SCDMATD-SCDMA/TD-SCDMA/3GTD-SCDMA/?TD-SCDMAFDMATDMACDMATD-SCDMARNCTD-SCDMAInternetTD-SCDMA3GTD-SCDMATD-SCDMA8kbit/s2Mbit/s3GTD-SCDMAGSM3G TD-SCDMA2G GSMCSPSWAPTD-SCDMAGSMTD-SCDMAT3GTD-SCDMA/GSMTD-SCDM
