Abbreviation of "mark division multiplex connection".Oneof the systems which are used in radio communication such as portable telephone. Multiplying the mark which differs to the aural signal of the group of originators respectively, synthesizing all aural signals and using one frequency you send. To remove only the aural signal of the partner by multiplying the mark of the partner who are conversational by your in the synthetic signal, it is possible the destination.
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CDMA 1x CDMA2000 1x
Alias :
1x, CDMA2000 1xRTT and 1xRTT
Field :
Portable telephone 3G CDMA 1x
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Oneof the technical specifications which are included in the portable telephone system "cdma2000" standard which applies CDMA technology. As for maximum transfer rate 144Kbps. It is called "1x" from the fact that zone 1 of 1.25MHz is used, to this developmental shape, and so onis includedin cdma2000 1x, it is general, but when such as . In Japanstart of the service KDDI from 2001 fall with this system was planned, but start was late from lag and the like of base station equipment, formal service in was 2002 April.
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CDMA 1X WIN 1C$x WIN
Reading : Seedy - m a it is, ?x Wien
Field :
Portable telephone 3G CDMA 1X WIN
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Au) 2003 November,it descends and making useof CDMA2000 1xEV-DO system the high speed of maximum 2.4Mbps the portable telephone service whose data communication ispossible.
1xEV-DO which is the additional standardof CDMA2000 was used, the high speed which is approached to broadbandof terrestrial type communication service data communication became possible. Besides the fact thatit can utilizethe sending and receivingof the animated picturemailandthe multimedia type service of EZweb comfortably,connectingwith the personal computer,it is possiblealso to utilize Internet in high speed.
2, but the speed even being, you say that 600 - 800kbps appears. As for transmission speed being the top and bottom asymmetric, as for full speed of rising 144kbps.
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CDMA2000 1x CDMA2000 1xRTT
Reading : Seedy - the m a fake it is to be, the x
Alias :
CDMA2000 1x Radio Transmission Technology, 1x, CDMA 1x and 1xRTT
Field :
Portable telephone 3G CDMA2000 1x
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Oneof the technical specifications which are included in the portable telephone system "cdma2000" standard which applies CDMA technology. As for maximum transfer rate 144Kbps. It is called "1x" from the fact that zone 1 of 1.25MHz is used, to this developmental shape, bundling zone and so onis included in cdma2000 1x, it is general, but when such as "1x" simply, to point "1xMC ". In Japanstart of the service KDDI from 2001 fall with this system was planned, but start was late from lag and the like of base station equipment, formal service in was 2002 April.
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CDMA2000 1xEV 1xEV
Field :
Portable telephone 3G CDMA2000 1xEV
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Oneof the technical specifications which are included in the portable telephone system "cdma2000" standard which applies CDMA technology. It is called "1x " from the fact that zone 1of 1.25MHz is used, to this developmental shape, bundling zone 3 of 1.25MHz, uses "3x MC " exists as1 channel. You specialized there is with and telephone call and it corresponded to both parties of data communication "1xEV-DV" in data communication. HDR of the QUALCOMM corporation most powerful apparent to be done asthe technicalspecification which actualizes EV-DO, as for this thedata communicationof maximum 2.4Mbps is possible at the bandwidth of 1.25MHz. On the one hand, although,EV- DV directing to standardization, is the stage where examination is advanced, enterprise of some corporation has made proposition, it has not decided. In Japan KDDI(au), the schedule which starts the data transmission service from 2002 end of year in 2003 with EV-DO with the down town.
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