128 antennas, 6X-10X improvement in throughput to ?1.5 gigabits. The fearless Masayoshi Son wants to change the world again, this time by launching 5G. They have deployed 100 cell sites in 43 cities, with many in Tokyo. He may be a year ahead of anyone else. Masa-san wasn't patient enough to wait. (I'm mostly working in Google translation from the Japanese, included below.)

Softbank subsidiary Wireless City Networks is taking charge. They may be using the ZTE 128 antenna unit demoed last year. Cell siting is particularly difficult in Japan and MIMO is the best way to get much more out of your existing network and spectrum. On the other hand, Softbank controlled Sprint has 120 MHz of unused spectrum. Sprint's logical path forward begins with carrier aggregation putting that spectrum to use.

 Bell Lab's Tom Marzetta, "The father of Massive MIMO," two years ago told me Massive MIMO still needed several more years of work. I'm sure he will be glad if things happen earlier. Marzetta's work on Massive MIMO is a good place to start if you want technical depth. Here's a slightly less technical article I wrote. I need to do a non-technical explanation as well.

 Masa-san changed the broadband world 15 years ago with the first IP DSLAM and prices half that of NTT.

Updated Sept 20. The company writes me that the first 100 cells are deployed, which wasn't clear initially. Updated Dec 3. Huawei and ZTE are both suppliers.

 MIMO reporting

128 Antenna MIMO from Ericsson in 2017

Shamsunder of Verizon: "We must have MU MIMO" 1000%! MU MIMO gain in gigabit tests by Universities, Facebook

 From Softbank, in Google translation

For the start of the "5G Project"

- The world's first, provide start-commercial services from September 16, 2016 of "Massive MIMO"

SOFTBANK CORP. (Hereafter "SOFTBANK") and Wireless City Planning Co., Ltd. ( "WCP") is, towards the introduction of the fifth-generation mobile communication system (hereinafter referred to as "5G"), to quickly customers a variety of state-of-the-art technology start the "5G Project" to provide. As the first step of this project, from September 16, 2016, the world's first commercial service of which is one of the leading element technology of 5G "Massive MIMO" (spatial multiplexing technology) ※ offers.


"Massive MIMO" is one of the leading element technology of 5G, by assigning the radio dedicated to each person by the large number of antenna and beam-forming, such as technology, for example, the station communication speed was likely to be slow even those who are many gathering place such as and downtown to achieve a comfortable mobile communication.


Softbank and WCP in the future as well, "5G Project", will continue to introduce a variety of state-of-the-art technology.


※ We investigated (September 8, currently 2016)

■ "5G Project" Overview

"5G Project" is a general term for efforts to provide quickly our customers new technologies, such as "Massive MIMO" which introduced in 5G is expected. As the first series, to start the world's first commercial service of a spatial multiplexing technology "Massive MIMO".


1. Features of "Massive MIMO"

And "Massive MIMO" is one of the leading element technology of 5G, by technology, such as large amounts of antenna and beam forming, by assigning the radio dedicated to each person, the station communication speed was likely to be slow also providing a comfortable mobile communication in such and downtown.


2. "Massive MIMO" target area

Is the sequential expansion plans from the National Urban section 100 stations. Target area, about started broadcasting scheduled area will be announced at the Company's website.


3. "Massive MIMO" target terminal

"SoftBank 4G" and Y! Mobile of 4G (AXGP) corresponding terminal will be the subject of SoftBank.

※ part of the terminal, which was released before 2014, in an area other than the Tokyo, Nagoya and Osaka will be to communicate in the usual 4G.

 

 

The world's first that could be because Softbank

What are the benefits of the "Massive MIMO"?

When expressed in a single word the technology of "Massive MIMO" is that "to eliminate the congestion."

For example, a person many gather location, etc., and browsing the Internet in the smartphone, experience that was frustrated by slow the display is, I think that there is anyone. This is one of the radio waves, is a phenomenon that occurs because they share several people. As a measure of order to solve this problem, first you have to increase the base station itself, but each other and too much increase base station each other interference, it will occur that rather connection difficult. Especially in the urban areas, base station the definitive location is no longer reached the limit, it was not only explore a different solution.

So "Massive MIMO" will appear. 
This technology, the space was the first floor only of the one-story until now, you can be in multiple floors of space, as in the apartment. That is what had to share the one-story several people is the image that is assigned to a separate room to each person. The radio itself is not visible to the eye but, thanks to the innovative technology to organize the limited space reasonably was born, we were able to achieve a very comfortable mobile communication.

Why it did can be deployed in the world's first?

But will be a little technical story, there are two communication standard called FDD to use the TDD and different frequency to use the same frequency in the uplink and downlink to "LTE", to introduce this time "Massive MIMO" is exactly this TDD It is an application and technology.

Wireless City Planning Inc., a Softbank Group company, efforts from 2010 to technology called AXGP (TD-LTE compatible), years of experience, which has been the commercial start becomes the base from 2012, the first in the world "Massive MIMO we were able to lead to the introduction of ". That has been focused wisdom a lot, I think that they have entered the real over time.

Even comfortable communication in places where many people gather

The purpose of "5G project" is, "how many people, average and can comfortably use" sticks to. The customer will try such as video service dare where you are returned overflowing in urban areas and people, I would like you realize that because "in any place is to use and comfortable."

In the world of mobile communication the term "3G", "4G" has emerged.The "G" in the acronym of "Generation (generation)", which means if it is "3G", "third-generation communications technology standards." In this project is called the "5G", for the fifth generation of the standard not been able yet clear criteria, "Softbank quickly fifth aim the generation of communication!" A strong intention, of the project we put in the name.

The world's first technology, I'm happy if you are able to quickly experience than anywhere else



Strengthen the network for 2020
Large-capacity concurrent high-speed communication low latency
Strengthening thus far of network
Corresponding to increase the number of base stations
The base station is no longer overcrowding
The distance between the inner city base station 10 ~ 50m
Base station expansion of urban areas is difficult
Strengthening the future of the network
5G technology
Massive MIMO
The world's first introduction
 The content of the description is a thing of the 2016 September. Our research.
TD-LTE base station (AXGP) Massive MIMO
× 10 up to 10 times
Network capacity
FD-LTE
Two antenna
TD-LTE (AXGP)
Antenna four or8 this
Massive MIMO
Up to 128
Features ② beamforming × spatial multiplexing
Massive MIMO benefits
High-speed communication even during congestion
Demonstration experiment
Tokyo 4 places effective speed survey
Asakusa
About 6 times
Shinbashi
About 7 times
Iidabashi
About five times
Shinjuku
Mbps about 9 times
Average 6.7 times
High speed even at the time of congestion
Massive MIMO ON / OFF comparison result
The demonstration
Experiment 1
100 people
49 people
34 people
Softbank are all success
At the same time file to download 1MB of 100 people in 10 seconds
The demonstration
Experiment 2 download 10 seconds challenge
※ comparison of the latest models that support their maximum speed
※ 9/2 of witness 14 am to 16 pm Monitasu Co. measured by our company under Tachikawa system


September 16 (Fri.)
Gradually expand than the national 43 city 100 stations
Start for the "5G Project"- the world's first, provide start-than September 16, 2016 the commercial service of "Massive MIMO"

September 8, 2016 
SOFTBANK CORP 
Wireless City Planning Co., Ltd.

SOFTBANK CORP. (Hereafter "SOFTBANK") and Wireless City Planning Co., Ltd. ( "WCP") is, towards the introduction of the fifth-generation mobile communication system (hereinafter referred to as "5G"), to quickly customers a variety of state-of-the-art technology start the "5G Project" to provide. As the first step of this project, from September 16, 2016, the world's first commercial service of which is one of the leading element technology of 5G "Massive MIMO" (spatial multiplexing technology) ※ offers.

"Massive MIMO" is one of the leading element technology of 5G, by assigning the radio dedicated to each person by the large number of antenna and beam-forming, such as technology, for example, the station communication speed was likely to be slow even those who are many gathering place such as and downtown to achieve a comfortable mobile communication.

Softbank and WCP in the future as well, "5G Project", will continue to introduce a variety of state-of-the-art technology.

5GW News

dave rightStarting July 2017, all new articles are at wirelessone.news. The pols and the marketing folks have made "5G" a meaningless term so the name doesn't fit reporting on advanced wireless. This will stay so old links work. I've reported broadband since 1999 and now is the time for gigabit wireless. Catch a mistake or have news? Email me please. Dave Burstein