Press release
May 20, 2021
Nippon Telegraph and Telephone Corporation
SKY Perfect JSAT Holdings Inc.

NTT and SKY Perfect JSAT conclude collaboration agreement on
new space enterprise to aid realization of a sustainable society

NTT Corporation (NTT, President & CEO: Jun Sawada) and SKY Perfect JSAT Holdings Inc.
(SKY Perfect JSAT, Representative Director, President : Eiichi Yonekura) announced todaythat the parties have agreed to jointly work together with the goal of creating a new spaceenterprise to aid realization of a sustainable society, and accordingly concluded a businesscollaboration agreement on May 19, 2021. NTT, which has global computing network
technology and is working on the implementation of IOWN, and SKY Perfect JSAT, which hasabundant technology and achievements in the space business including satellite
communication and satellite broadcasting for more than 30 years, will collaborate to build a
new space infrastructure through innovation in a space integrated computing network, thereby
helping to realize a sustainable society.

1．Background of the business collaboration
There is a pressing need to ensure the sustainability of economic and social activity, whichmakes it more important than ever to utilize outer space effectively and to the greatest extentpossible. This involves ICT infrastructures for a variety of fields, such as energy, environmentand climate change, disaster prevention, and smart cities. Novel technologies andarchitectures are needed to build these ICT infrastructures in outer space.
NTT and SKY Perfect JSAT have proceeded with studies and discussions toward therealization of an ICT infrastructures in outer space, and have reached the conclusion of thisbusiness alliance agreement.
NTT, which has global terrestrial infrastructures and is dedicated to making the IOWNconcept a reality, and SKY Perfect JSAT, which has abundant technology and achievementsin the space business including satellite communication and satellite broadcasting for morethan 30 years, will together take on the challenge of building a novel space integrated
computing network to create the infrastructure needed for a sustainable society.
2．Space integrated computing network
The space integrated computing network is a novel infrastructure to be built by combining
NTT’s network/computing infrastructure and SKY Perfect JSAT’s space assets/business. It

integrates multiple orbits from the ground to HAPS floating at high altitude, Low Earth Orbits
and Geostationary Orbits. In addition, they are connected to the ground by an optical wirelesscommunication networks to form a constellation, and distributed computing enhances various
data processing. It also provides access to terrestrial mobile devices for ultra-wide service
coverage.

Fig. 1: Configuration of the space integrated computing network
3．Examples of business projects
The activities envisaged in this business collaboration and currently planned project
examples are shown below.
Realizing the flow from information gathering to value in space with three functionsSpace integration
Computing network
Sensing① Space sensing:
Terrestrial and space sensing data integration platform

Content② Space data center:
High-capacity communication/computing platform in outer space

Transport③ Space RAN (Radio Access Network):
Space communication platform looking ahead to Beyond5G/6G

Fig. 2: Fields to be addressed in the space integrated computing network

①Space sensing project: terrestrial and space sensing data integration platform
In addition to observation data captured by conventional observation satellites, we will
establish an integrated space and earth sensing platform that uses the world's first low earth
orbit satellite MIMO*1 technology to collect data from IoT terminals installed around theearth and provide a service using this platform. Furthermore, we will develop a new sensing
technology that uses terahertz radio waves to visualize information that would ordinarily beinvisible, thereby enhancing the value of space data and expanding its potential use.

②Space data center project: high-capacity communication/computing platform
Using photonics-electronics convergence technology which enables reducing power
consumption and high cosmic ray resistance of computing resource, we will establish acomputing processing platform in outer space and launch a service using this platform. In
addition, distributed computing using optical communication technology enables a varietyof advanced data processing. For example, a huge volume of diverse data collected in outerspace will be instantly gathered and analyzed over a high-speed optical communication
network, and only essential information will be delivered to users who need that information.
This will dramatically enhance both real-time usage of space data and user convenience.

③

Space RAN (Radio Access Network) project: communication platform in
Beyond5G/6G
Using a satellite (Low Earth Orbit) and HAPS expected to be used for Beyond5G/6G, wewill establish a mobile communication platform and use it to launch an access service ofnetwork. This will further enhance the convenience and value of mobile communication. For
example, a high-reliability messaging service can be provided, and ultra-wide-area service
coverage can be achieved.

４．Division of roles
Company

Main roles

NTT

Leading-edge

computingtechnology(AIprocessing,distributedprocessing/memory, etc.), network technology (MIMO*1, FSO*2, etc.), andglobal networks/data centersSKYPerfect Knowledge and industrial leadership as a satellite operator, such as

JSAT

optimization in the economics and reliability of satellite and controlsystems, procedures for frequency usage and radio station licenses, andsatellite and network operations.

*1 MIMO（multiple-input and multiple-output）: A technique for multiplying the capacity of a radio link using multiple transmission
and receiving antennas to improve the quality of wireless communication.
*2 FSO（Free Space Optics）: An optical communication technology that uses light propagating in free space.

5．Future prospects
We will conduct technical demonstrations beginning in 2022 to develop technologies that will
lay the foundation for these projects. In parallel, we will prepare for the launch of commercialsatellites, which will be planned to start its commercial services from around 2025.
We aim to create businesses that spearhead space development both in Japan and worldwide
by collaborating with global space and satellite operators and co-creating innovations.

2021

①
Space

2022

2023

2024

2025

▲Technical demonstration (inorbit)
Technical
development/demonstration

2026

2027

2028

2029

2030

2031～

▲Launch of a commercial satellite

Service provisionPreparation

sensing▲Technical demonstration (in orbit)▲Launch of a commercial satellite②Spacedata

Technical development/demonstration

Preparation

Service provision

center▲HAPS technical demonstration

③
Space

▲Launch of a commercial satellite▲LEO technical demonstration
Technical development/demonstration

Preparation

Service provision

RAN

Fig. 3: Assumed schedule for service provision
6．Overview of each corporation□About NTT
NTT believes in resolving social issues through our business operations by applying
technology for good. We help clients accelerate growth and innovate for current and newbusiness models. Our services include digital business consulting, technology and managed
services for cybersecurity, applications, workplace, cloud, data center and networks all
supported by our deep industry expertise and innovation. As a top 5 global technology andbusiness solutions provider, our diverse teams operate in 80+ countries and regions anddeliver services to over 190 of them. We serve over 80% of Fortune Global 100 companies
and thousands of other clients and communities around the world. For more information onNTT, visit www.global.ntt/.
□About SKY Perfect JSAT HD
The SKY Perfect JSAT Group has SKY Perfect JSAT Corporation as its core operatingcompany, and as a top runner in the fusion of broadcasting and communications, it is the only
company group in Japan that utilizes 18 satellites, the largest in Asia, and provides pay multichannel broadcasting and satellite communications services.

SKY Perfect JSAT delivers a broad range of entertainment through the SKY PerfecTV! platform,
the most extensive in Japan with a total of 3 million subscribers. In addition, SKY Perfect
JSAT’s satellite communications services, which cover Japan and the rest of Asia, as well as
Indian Ocean, Oceania, Russia, Middle East, Hawaii and North America, play a vital role insupporting safety, security and convenience for the society as a whole. We also are developing
business solutions that utilize the world's most advanced technology using satellite data. And
we are confident that with our customers we can build a better future by further digitaltransformation.
website: https://www.skyperfectjsat.space/en/