Au's "EVDO multi-carrier" terminal whose communication speed has tripled, what is its strength?

The communication standard adopted by KDDI for the au mobile phone of the current model is called "CDMA2000 1x EV-DO Rev. A", and the communication speed is 3.1 Mbps maximum for downlink, 1.8 Mbps maximum for upload, and 7.2 Mbps for " HSDPA "service, NTT DoCoMo and SOFTBANK MOBILE, but from this year's Fall & Winter model, it is called" EVDO Multi Carrier "A model corresponding to the communication method that realized the speed three times as high as the conventional one appearedTo do.

And since today's "CEATEC JAPAN 2010"At the KDDI booth, prototypes of models compatible with" EVDO multi-carrier "were displayed, and demonstration of high-speed communication was actually carried out.

For details such as comparison of communication speed with the conventional machine, details are as follows.
Roadmap of au's infrastructure. NTT DoCoMo's 3.9-generation mobile phone service "LTE" will be launched in December 2012.


And commentary on "EVDO Multi Carrier" introduced from this autumn model. It is to realize high speed by bundling up to three conventional "EV - DO Rev. A". As a result, the downlink is up to 9.2 Mbps and the upload is up to 5.5 Mbps.


The "EVDO multi-carrier" noncompliant type (left) and the corresponding model (right) were lined up, making it possible to actually check the communication speed.


Comparison when actually downloading content with LISMO.

Comparison of YouTube - au's "EVDO Multi Carrier" Speed ​​Comparison, Content Download


Send an email with a 2 MB file attached. The larger the data amount, the more the difference in communication speed seems to be noticeable.

Comparison of YouTube - au's "EVDO Multi Carrier" Speed ​​Comparison, Content Download