When 3G is used, weigh-in charge? I asked what is worrisome about SOFTBANK's "ULTRA SPEED"

On November 4, last year, I expanded the communication standard "W-CDMA system" of the third generation mobile phoneTo start the "ULTRA SPEED" high-speed communication service with a maximum downlink speed of 42 Mbps adopting the "DC-HSDPA method"SOFTBANK MOBILE announced.

Data communication service for personal computers currently provided by SOFTBANK MOBILE is "When using eMobile's network it is a fixed amount, and if you use Softbank Mobile's line,Although I am adopting a rate plan that is ridiculous unless I understand it firmly, even after introducing "ULTRA SPEED", I do not care, such as whether it will result in a usage-based billing other than "ULTRA SPEED" compatible area I tried asking what to become.

Details are as below.
The contents and responses inquired to SoftBank Mobile Public Relations Department are as follows.

GIGAZINE:
Although it seems that data communication service was provided not only by SOFTBANK MOBILE but also using EMOBILE's network in the past, the newly provided 'ULTRA SPEED' will be offered only by a network that has been developed by itself Will it be?

SoftBank mobile:
As pointed out, we will offer it only at our own facilities.

GIGAZINE:
Please tell us about what you can use outside of the "ULTRA SPEED" offering area in the existing SOFTBANK 3G area, and what will be the fee for using it in the 3G area.

SoftBank mobile:
Services can be used in areas other than "ULTRA SPEED" and subject to a fixed amount.

GIGAZINE:
Will there be plans to provide roaming service with "EMOBILE G4" which adopts the same DC-HSDPA system for "ULTRA SPEED" like conventional data communication service?

SoftBank mobile:
Currently, there is nothing decided about roaming with e-Mobile.

In other words"ULTRA SPEED" does not worry that if SoftBank Mobile completely develops the area on its own and further uses data communication in the 3G area, unlike so far, it will result in pay-per-use billing... It will be said that the area expansion speed of "ULTRA SPEED" is concerned.

Schedule of area development in the future. Last March2G service stopThe deployment speed is fast because it uses the wave of 1.5 GHz band obtained again later, and NTT DoCoMo's "Xi (Crossy)" which becomes the first high-speed communication service in Japan using the next generation communication standard "LTE" last December is greatly expanded We are planning to develop at a higher speed.


It also exceeds the "Xi" of downlink 37.5 Mbps also in the communication speed comparison, "DC - HSDPA" of 42 Mbps is considered to be the fastest in the industry. By the way, this graph is "UQ WiMAX" of up to 40 Mbps downlink deployed by KDDI's subsidiary "UQ Communications" which is thoroughly through,Considering error correction, the effective speed further exceeds "DC-HSDPA"And that.


By the way, SOFTBANK MOBILE offers "ULTRA SPEED" for corporate users starting from the end of February and if you contract two years during the campaign period from service start to June 30, 2012, it will cost 1,000 yen to 4935 per month We announced that we will implement "ULTRA SPEED corporate start campaign" available in yen the other day.

Corporate Data Communication Plan (ULTRA SPEED) / Corporate Data Communication Plan Flat (ULTRA SPEED) | SOFTBANK MOBILE Corp. Customer Site

Usage fee image of "ULTRA SPEED". For non-campaign 2 year contract, usage fee will be max. 5980 yen monthly, if not 2 year contract month will be max. 7770 yen.


Also, in order to provide better network quality to more users,Regardless of usage in domestic and overseas, control of the communication band is carried out for "mobile data communication used during hours with high traffic such as nighttime band"In addition,Disconnection or control is also carried out without prior notice even for use occupying telecommunication facilities continuously for a certain period of time or moreIt is necessary to be careful.