KDDI speeds up the communication speed to three times the current speed, the area and communication quality also greatly improved

KDDI today held a briefing session on the company's area and efforts to improve communication quality.

By optimizing communication so that you can use e-mails and the web comfortably, we are improving the communication quality considerably more than before, and it also clarifies that we will increase the communication speed to triple the current speed .

Details are as below.
Materials to explain the area of ​​KDDI and efforts to improve communication quality. We are improving both area and communication quality with the theme "To au more connecting au".


Quality evaluation and quality improvement activities based on user's voice, which began in 2006. We understand demand and satisfaction survey, traffic analysis, quality of our company and other companies, and are striving to maintain and improve quality.


Transition of data traffic. It has grown almost threefold over the last three years, especially SNS, which is a major driving force behind data traffic growth. E-mail has stayed at 1.8% of the whole, but because there is little original traffic, you can send and receive e-mails "Gangan MailIs that a plan such as "could be realized?"


The transmission and reception of e-mail accounts for 70% of the frequency of data communication usage, whereas the communication in EZweb occupies 90% of traffic.


KDDI says that it is necessary to take comprehensive quality improvement measures from the three viewpoints of infrastructure such as base station performance, mobile phone terminal, and area.


Actual efforts. We succeeded in shortening the time required for sending e-mails at all the Yamanote line stations by 40%, and we are implementing measures across the country.


At the subway station home, the connection time to the company's portal site "au one" has been shortened by about 40%.


The download speed of rich content such as Chaku-Uta Full has also improved.


The background of such measures is maximization of base station performance according to users' usage trends. Unlike in the past, throughput has not been reduced even during congestion.


As represented by the scene like "Create mail in the tunnel where radio waves do not reach and arrive at the station and send the e-mail instantly when the radio wave enters", as the train entered the station as soon as the train entered the station It was said that the base station was reinforced focusing on instantaneous traffic increase to explode.


Even for voice calls, it improves the ease of outgoing and incoming calls and shortens calling time.


Adopted the Snapdragon platform used in high-end smartphones for mobile phones "T004"Or"S 004"Make e-mails and webs crispy.


Regarding the area improvement request from the user, it is clear that 80% is related to home.


In response to requests for improvement, a phone call is made within 48 hours from the area support center, and efforts are also being made to improve the quality of the area where investigators survey the radio wave conditions.


By installing "au repeater" which makes it easy to draw radio waves from base stations at the user's home, the communication quality has greatly improved, and the satisfaction level has reached 94%.


In addition, high-quality and high-throughput communication quality is offered by installing a small base station "au femtocell" for single-family houses and high-rise floor of condominiums.


KDDI's roadmap. We plan to introduce "EVDO multi-carrier" from this year.


This is the explanation of "EVDO multi-carrier". From the autumn / winter 2010 model, the communication speed seems to be 9.2 Mbps maximum and 5.5 Mbps upstream. Considering that the downlink speed of "HSDPA" currently introduced by NTT DoCoMo and SOFTBANK MOBILE is 7.2 Mbps at the maximum, is not it quite fast?