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FDD2015ǰᷢ ͨŲ
2014-12-25 23:04йֻԭߣ
ǰŲ׳20154Gûƻﵽ2.5ڻLTE FDDսTDDӵһģ󷢷š˼ҵڽǰͨȫFDDա

Ȼ6£Ų׼йͨйŷֱ16пչFDDãFDD/TDDݵ56ǺȫǵȻܴ

Ŀǰû棬й11ƶ绰û1313Gû202ۼƴﵽ1.1663ڻйͨ11¾ƶ绰û55.4򻧣3G/4GûҲ109.3򻧣ۼƴﵽ1.47952ڻ

TDDѾչһ࣬йƶƸԣFDDغͨſѺйƶ¢ϡ

Ϊ˷й׼TDDʽйƶգ߱ûƣȻTDDվ棬ƶѾ704Gվ4Gûͻ8000

ͨ͵ţȻ7ºFDDTDDҲTDDIJ֡ǴĿǰʵйͨڿչTDDΪѾӵе3GйCDMA3.1Mbps ͨWCDMA 21Mbps ƶ2.8Mbspʵٶÿٶȴʵ״̬Լ200KBͨ600KBƶ150KBƶ3GеŸü֮ãйͨ졣4G棬ʵƶиһ״̬ÿ2MBҡͨûвTDDĶһҲͨ3Gӡ֤

еźֳͨ϶ںFDDFDDңңڣԵŵӰ

TDDFDDƻʽ򵥣Ҳ˹ŲTDDƫάƶͨги֣ƶгռʡ3Gʱʲͬ3GʱŲƽӪ̵гij̶ֳйƶйͨTD-SCDMAWCDMACDMA 2000ոƶͨ͵šƶȻг󣬵ǻõTD-SCDMAйб׼йͨȡ˹ͨרѼ͵WCDMAйŻƽȴΪεCDMAйڻʵ

4G棬TDDҪؽ磬ͨ͵ŵFDDԼϾܾFDDվͱͨŽTDDӶѸƶTDDҵͨŲˣԭΪ£˾߲FDDҲTDDռ̶ȶһӡ

ȻΪйطάԼTDDҵΥ˹ƽԭ򣬵ΪFDDչѸйƶûôԻñTDD˵Ҳڹƽԡʵո߶¢Ӫҵ󻯵ģʽֺйƽء

ΪնûTDDFDDѡйƶ4GͻŤת3GʱTD-SCDMAƾ棬رƶն˳̺Ͳҵķ֣ʹĿǰTDD4Gֻļ۸ͬͺŵFDDͨ棩ձҪ͡ǷƶĸҲԶԶͨͨ͵ŵWCDMACDMA 20003GƵȻ޴档

2015FDDշţйͨйڸǵҲ׷ƶ˴ѡ񿴣ʹΪôҵȵûȻѡйƶ

ĵַ:http://www.cnonline.org/2014/article/12038.html
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