Will KDDI release "WiMAX-equipped mobile phone" overwhelmingly leading other companies at the communication speed?

From Spring 2010 Winter Spring to Speech TerminalsIntroduced "EVDO multi-carrier" with maximum communication speed of 9.2 Mbps downlink and maximum uplink 5.5 MbpsBy doing so, KDDI realized communication speed exceeding that of NTT DoCoMo or SoftBank Mobile's voice terminal which adopted "HSDPA" of maximum downlink 7.2 Mbps, but there was also the intention to further improve the communication speed.

It is intended to make mobile phones compatible with "Mobile WiMAX" downlink with a maximum of 40 Mbps and a maximum uploading of 10 Mbps, and if it is realized it will be able to lead other companies significantly.

The above picture shows the high-performance Android smartphone compatible with CDMA 2000 and mobile WiMAX already released overseasHTC EVO 4G"is.

Details are as below.
High-speed radio, wave riding DoCoMo next generation data communication, fighting supremacy (4 / 5page) - Sankei Biz (Sankei Biz)

According to reports by Sankei Shimbun,NTT DoCoMo launched next-generation high-speed communication service "LTE" with a maximum of 37.5 Mbps downstream from "December" as "Xi (Crossy)"In addition to that, HSDPA has been expanded, "DC - HSDPA" downlinking maximum 42 Mbps "e - mobile"EMOBILE G4'From December, andSoftbank Mobile will also be launched in March 2011And it seems that KDDI will be delayed as service start of high-speed communication accelerates.

KDDI plans to start LTE service in about 2 years after NTT DoCoMo will be competing against other companies with "EVDO multi-carrier" with a maximum downward 9.2 Mbps for the foreseeable future, but as a secret measure of the reverse, UQ Communications subsidiary The company is considering releasing a hybrid cellular phone compatible with the mobile WiMAX service "UQ WiMAX" with a downlink maximum of 40 Mbps and uplink maximum of 10 Mbps.

Also, KDDI will start from November 19Started handling of Onkyo 11.6-inch tablet terminal "TW317A7" equipped with Windows 7 with au shop etc.In doing so,A USB type hybrid data communication terminal that can use both KDDI's data communication service and the mobile WiMAX service provided by subsidiary UQ CommunicationsWe introduced a set sale with, but it is said that this is the "WiMAX compliant mobile phone" for individuals.

In addition to the appearance of hybrid data communication terminals, in September KDDITadashi Onodera retired and Takanji Tanaka, who established UQ Communications, will take office as President of KDDI on December 1stSince the appointment of personnel has been announced, the appearance of hybrid terminals is becoming real.

By the way, according to UQ Communications,The notation of the communication speed of "DC-HSDPA (downlink maximum 42 Mbps)" or "LTE (maximum maximum of 37.5 Mbps)" calculates the data communication speed with an unrealistic error correction code rate in a real environmentTherefore, when comparing with the communication speed of "UQ WiMAX" including error correcting code (maximum downlinking 40 Mbps), DC-HSDPA seems to be 35 Mbps maximum for downlink and 31.3 Mbps maximum for LTE.

Material presented by briefing by UQ Communications. UQ WiMAX is the highest peak speed, and the companyClarified that not introducing the band limit introduced by each companydoing.


It is certainly attractive that "voice terminals that can use both KDDI's network that boasts extensive areas and UQ WiMAX networks that can communicate at high speed", but UQ WiMAX is one and a half years of NTT DoCoMo's "Xi" It has been deployed in the near future,We will raise the number of base stations to 15,000 bases by next MarchThat is why we would like to have voice terminals released earlier than other companies.