2‑1

2 Telecommunication Radio Broadcast

Summary of the Tokyo 2020 Games Network
SAITO Wataru

SHIGECHIKA Noriyuki

This artiele provides an overview of the “Telecommunication platform” and the various “Network services” preparedand provided by the organising committee for the Olympic and Paralympic Games Tokyo 2020 and summarizes theachievements and challenges in providing them by considering problems that arose during preparation and Games‑time
operation
Keywords：Games Data Network Telecommunication platform Systems and Network services for the Games

1．Introduction

other systems used at the competition venues andfacilities were in principle also based on this “communi-

The communication network is indispensable for thecations infrastructure” Naturally “Network services”

operation of the Games for those involved in the Games

were no exception with the Internet access and fixed‑

including the organising committee staff It was installed

line telephones also being provided over this networkand operated by the organising committee from its
establishment to its liquidation

Starting with the Tokyo 2020 Olympic and Paralympic

while changing its

Games (hereinafter referred to as “Tokyo 2020 Games”)

function and size In particular the communication

the organising committee has also provided a network of

network used during the Games was called Games Data

video‑material transferring for broadcasting (Broadcast

Network This section mainly introduces the “Telecom-

Contribution Network)

munication platform” and “Network services” of Games

Contribution Network is to provide dark fiber or leased

Data Networklines to the video transmission system prepared by

The role of the Broadcast

The “Telecommunication platform” was a network

Olympic Broadcast Services (OBS) This is the relaythat connected the two data centres in Japan as hubs totransmission part for collecting 4K video materials shotcompetition‑related systems in cloud data centres inat each venue to International Broadcast Centre (IBC)

Europeand approximately 70 major centres andin real time so in principle the physical conditions were

facilities that included 43 Olympic and Paralympic

strict : complete redundancy and undergrounding In

Games venues The network could be said to be one offact some competition venues had to deal with issues

the largest telecommunication network in the history ofsuch as “There is an underground route but no second

the Games due to the large number and distributed

route and what to do about the underground conduit for

locations of competition venues throughout the country

the second route ” etc Depending on the competition

from Hokkaido to Kanto and Tokai (Table 1)
In addition to the competition‑related system theschedule and the facilities available to the venues newunderground conduits were installed backup for theaboveground section was added as third or fourth

SAITO Wataru
Technology Services The Tokyo Organising Committee of the Olympic andParalympic GamesSHIGECHIKA Noriyuki
RCA Co Ltd (Telecom Advisor of Technology Services)

The Journal of The Institute of Electronics Information and Communication Engineers Vol 105 No 8 Supplement pp 13‑21 August 2022
© 2022 The Institute of Electronics Information and Communication Engineers

cabling route or other countermeasures and mitigation
measures were taken Although the organising committee and the partners had lots of challenges for theprovision this report would not deal with those in detailbecause we basically focus on the bandwidths between

Special Issue : Technology and Innovation in the Olympic and Paralympic Games Tokyo 202013

Table 1

43 Games Venues across 9 Prefectures

RegionNumber of Venues

Remarks

23 Tokyo wards (cities)

22

Outside 23 wards

3

Kanto area except Tokyo

11

Chiba 4 Saitama 3 Kanagawa 3 Ibaraki 1

Outside of Kanto

7

Shizuoka 3 Fukushima 1 Miyagi 1 Hokkaido 2

Figure 1
Physical Configuration of the Network for Conventions (overview)The data network for the Games (blue in the figure) isconnected to the Domestic Data Centre and other venues in a star configuration using high-speed broadband Ethernet etc The broadcasting
network is connected to the International Broadcasting Centre using dark fiber and leased circuits

the competition venues and IBC The physical configura-Janeiro Gamestion of Games data network and Broadcast Contribution

bandwidth required by each service system the number

Network is shown in Figures 1of expected visitors to Japan the growth in Internet use

taking into account the expected

after the Rio de Janeiro Games and the like The

2．“Telecommunication Platform” for the Tokyo
2020 Games21

capacity of “Telecommunication platform” thus set up
did not get saturated during the Games in Summer
2021

Howevera very brief Internet congestion

Consideration of Architecture and Requirements

occurred during the peak traffic period of the Olympics

Since not all requirements for “Telecommunication

but this did not affect the operation of the Games This

platform” were given we started by understanding thewould be the result of a balance between the increase in

network requirements and design concepts of past

general Internet use due to the one‑year postponement

Games and finally after confirming the requirementsof the Games and the decrease in the number of visitorsfrom the top partner that operates the competition‑

due to the restriction of entry to Japan since therelated system we attempted to decide the require-capacity was originally designed for use in the summer

ments in consideration of the domestic situationof 2020For example the design of the WAN bandwidth

The Tokyo 2020 Games used commercial network

between the venue and the data centre and the Internet

services provided by partner companies for communica-

connection bandwidth was determined based on thetion between venues and facilities

configuration and the bandwidth used in the Rio deexample of the domestic situation In many past Games

14

which was an

THE JOURNAL OF THE INSTITUTE OF ELECTRONICS INFORMATION AND COMMUNICATION ENGINEERS

such as Rio de Janeiro dark fiber was mainly used for

OTNʼs purposes and usage methods varied For thistransmission and actual network control was performed

reason the common network functions were kept to a

only by network equipment provided by the organisingminimum and the necessary functions and operationscommittee This is thought to have been in conjunction

were to be provided by the individual systems andwith a policy to install optical fibers in the region on theservices

occasion of the Games However Japan has a high fiber

CPN were logically divided into several networks

penetration rate in other words the demand for new(VLANs) according to the systems that handled thefiber installation was small and if new cables weregoal‑scoring photographs the progress of the Games orneededit would be a burden on the Organising

the competition results data such as scores andCommittee and there were many distant venues thatmeasurement times BON were also divided into several

could not be configured with only dark fiber Therefore

networks according to the devices used such as thewe chose to use commercial network services

network to which the staff PCs were connected and the
network to which the staff smartphones were connected

22

Functional Classification of Networks (“Tele-

via Wi‑Fi OTN was divided into VLANs according tocommunication Platform”)

the services and systems to be accommodated resulting

Games Data Network as “Telecommunication plat-in a large number of VLANs being set up and operatedform” for the competition can be broadly classified into

CPN BON and OTN had common policies such as thethe following three networks : the Competition Network

total prohibition of Lateral Movement between terminals(CPN) which housed the competition results distribu-

such as PCs to prevent the propagation of malware

tion system ; the Back Office Network (BON) which

infection and the independence of VLANs (no inter‑

was used by the Organising Committee staff for

VLANs communication) to prevent the propagation topreparation and operation before/during the Gamesother services On the other hand CPN and BON

period ; and the OCOG Technology Network (OTN)

required physical security of the usage location network

which provided VLANs dedicated for the various

authentication and monitoring by proxies while OTN

systems and services provided by each Functional Areain principle left the operation of each VLAN to each

(internal organization of the Organising Committee

service or system policy

hereinafter referred to as “FA”) and each stakeholder
involved in the Games (Table 2)
Needless to say competition‑related matters wereprimary in the Games operation In other words in

3．“Network Services” Provided in Tokyo
2020 Games

terms of networks CPN had the highest priority and31

required a high level of monitoring and operation BON

The Network services described here were studied

Main Network Services

handled all information related to the preparation andand prepared

operation of the Organising Committee

platform” based on the requirements of the past Gamesand thus

required a high level of monitoring and operation over ain parallel with “Telecommunication

The following is a list of representative services :long period of time OTN might be responsible for FA
services indispensable for their operation in some cases
and also provided the connectivity for the Wi‑Fi Internet
services to office visitors in other cases That is to say

Internet for stakeholders (wired and Wi‑Fi connections)
VLAN service for the press (Press Plus)
CATV (Community Access Television) service
IP fixed‑line telephone and FMC services

Table 2

Classification of Games Data Network

CPN

Network for distribution system of competition results

BON

Network for organising committee operations

OTN

Others used for Network services FA systems etc

Remark : Here “Games Data Network” is used to collectively refer
to “Telecommunication platform” and “Network services”
provided responsibly by the Technology Services bureauof the Organising Committee In terms of “Telecommunication platform” “Games Data Network” was divided into
the above three categories

VLAN for TV conference service
IOC staff network
VLAN Connect (intra‑and inter‑venue VPN connectivity)
Internet with a global IP address etc
In addition to these services remote access VPN canalso be listed as one of the services provided to the staff

Special Issue : Technology and Innovation in the Olympic and Paralympic Games Tokyo 2020

15

The remote access VPN was installed with theGames

expectation that staff members would use it for businesstelephone service for use at the management andbut we added a stable quality fixed‑line

purposes at venues under construction However since

operation centres of each FA to create an integrated

Tokyo 2020 Games was postponed for one year soon

telephone system In the end 2 600 fixed‑line phones

after its installation it actually became the main tool forand 15 000 extension smart phones were used at thestaff to work remotely at home with a maximum ofGames time

approximately 3 500 users at one time
Except for the last one Remote Access the above‑
mentioned were basically the similar services provided

32

Identification of Service Requirements andQuantities

for stakeholders at the past Games but the Press Plus

The basic functions were determined based on the

dynamic VLAN connection function the distribution of

specified requirements and advice from IOC OBS andcell phones to all staff members and the Fixed Mobile

others who were familiar with the requirements of theCommunication (FMC) function for internal calls based

past Games while the quantity was determined by theon the distribution of cell phones were newly added atnumber of requests received from each FA and thethis timenumber of rate card orders for paid services for

In principle“Network services” were

provided using stable and well‑proven technologies but
some advanced technologies such as “Local5G” were also

stakeholders
Requests from FAs were identified through a process
called TEAP (Technology Equipment Allocation Plan)

incorporated on a limited basis
The details of the functions and construction/opera-

which was conducted every year or half a year or everytion of the Wi‑Fi connection service will be left forquarter including minor updates starting three years

another article but the connection service was unstableprior to the Games in which the Technology Services

someplace when the press‑related personnel and others

bureau of the Organising Committee asked all FAs about

were concentrated in certain locations There eventhe quantity required and collected their requests

when connected each connection speed was much slow

However the requests from other bureaus and FAs

This was caused by a sharp increase in Wi‑Fi usage in

generally tended to be excessive as the services were

the press area a few days before the opening ceremony

not covered by their own budgets

but it was an opportunity to realize the difficulty ofallocation in the venue was not decided until one year

“short‑term intensive use” and the importance of

before the convention so there were many duplicate

and the room

requests which made the scrutiny a challenging task

“responsiveness” during the GamesCATV was provided in two types : In‑Venue CATVFor example even in case that several FAs requested(3 200 units) which was provided using the RF system

Wi‑Fi Internet we could find one AP sufficient for thembecause significant signal delays were not allowed andif those requests in the same room in the final room

Inter‑Venue CATV (3 700 units in total including theassignment

number of units re‑deployed at the Paralympics) using

On the other hand rate card orders are subject tothe IP multicast system which was designed for viewing

stakeholders and even the number of advanced orders

over a wide area Since this service required coordina-would not be known until about six months before thetion with projects other than our telecommunication thestart of the Games Therefore we had to preparedelays in procurement of monitors

the delays inequipment etc based on the quantities of the past

installation work to receive images from OBS and theGames and to respond to the actual number of orders

necessity of additional frame synchronization equipment

Orders were closed three months prior to the start of theat some venues to stabilize In‑Venue CATV images

Games and we provided the service for the rest of thewere consecutively found in the last‑minute delivery

time including during the Games period if the provisionperiod of May to July These made us keenly aware of

was possible in terms of facilities and lead‑time In fact

the need to keep proactively track of the progress of

CATV could not provide the service during therelated others in this kind of short‑term projects ; others

Paralympic Games due to lack of STBs (Set Top Boxes)

cannot afford to think about the impact on us

in stock even when we received orders

For the telephone service each staff member was
given a smartphone and used the extension service
function of a Network services partner before the16

THE JOURNAL OF THE INSTITUTE OF ELECTRONICS INFORMATION AND COMMUNICATION ENGINEERS

4．“Telecommunication Platform”(i e network) Provided to FA
41

detailed preparations were rather exceptional
42

Major FA Systems Provided with “Telecommunication Platform”

Understanding

Network

Requirements

andQuantities from FAs and Others
The system administrator or network user from theIn addition to our “Network services”

there were

viewpoint of Technology Services Bureau was each FA

cases in which FAs and others organized functional

and we obtained the requirements from the staff of therequirements based on their own business designs andrelevant FA their system integrators or IOC organiza-

requested the network/capacities necessary for theirtion and examined the configuration and functions

systems

Then we decided the configuration and allocation of the

In such cases

the network was mainly

provided as sub‑network of OTN As shown in the

bandwidth for inter‑venue communication

following list the network was provided for various

connection and the like on the assumption that Gamessystems ; for example Internet connection for payment

Data Network especially OTN be provided to themterminals used in shops at the venue

However except for the previously‑mentioned CCTVInternetno concrete discussions could be made until less than 12
Security systems including surveillance cameras(Closed Circuit Television CCTV)

months before the Games
In order to avoid any discrepancies or omissions in the

Medical systems

construction and provision of these services specific

UPS (uninterruptible power supply) monitoring

locations and quantities were collected and organized insystemsthe same way as for “Network services” by establishing

Energy management systems

service codes for the newly applicable FA systems

Simultaneous interpretation and distribution systems

Namelyfor medalist interviewsin principle we had the recent requests

collected in the same TEAP process

Video board image and information systems
Temperature control system for venue data centres
Internet connection for specific FA information
terminals
Internet connection for payment terminals etc

43

Common Issues and Responses That Emergedin the Last Period

Many of FA systems started operation in June or Julyof 2021 and most of them began actual use and operation
without a trial in a production environment Because of

The network to accommodate the Closed Circuit

the large communication loss in the complex system andTelevision (CCTV) system had been provided physi-

the small number of engineers who could see from thecally separately from the data network for the past

undercarriage to the service the survey from earlyGames But for Tokyo 2020 Games it was superimposed

2021 just before the operation start found a number ofon OTN from the viewpoint of efficiency (decided insystem projects that raised concerns about implementa-

2018) Based on this early decision to superimpose

tions of the operational level that had been previously

because of the expected fact that it was a specialaligned and promised Although there were no major

network that would transmit and receive a large number

problems at the communication some were concernedof video images by IP multicast regarding this CCTV

about the security operation Since the Games was

network under the supervisory of Security Bureau of

already approaching

the Organising Committee the digital camera partner

measures independently from each system should be

the Network services partner and Technology Services

implemented in OTN network as well in order to raise

Bureau were to start working closely together tothe overall level of security

understand the requirements and to proceed design andverification

it was decided that common

Specifically as one of measures a firewall with an IPS
function was decided to be installed at the Internet

Rather our telecommunication team did work for andentrance and exit of OTN to monitor every network in it

coordinate with the CCTV system so that it could be

at all times and block certain packets if deemedthought as if one of “Network services” in terms of thenecessary The decision was made in May and theway the actual consideration and design proceeded

equipment was installed at the end of June when the

However the FA systems that were able to make suchathlete village was already opened and the Games‑timeSpecial Issue : Technology and Innovation in the Olympic and Paralympic Games Tokyo 202017

operation was started Thus this firewall was operated

new tasks from venue design to construction within aduring the Games while continued to be tuned

period of about six months In particular the biggest

While the introduction of this functionality andconcern was the underground redundancy requirements

equipment had the advantage of adding new security

for BCN that would transmit the broadcast video

functions from the perspective of network operation it

materials but we were able to overcome this withalso brought the disadvantages such as insufficient

minimal changes by utilizing the facilities used for thematurity of the equipment operation insufficient coordi-

Sapporo Dome and the likenation with the existing operations addition of operation-

Then the postponement of the Games was decided inal flows potential reduction of availability etc In the

March 2020 Since the venues to be used in summer of

end no major problems were encountered but the2021 had not yet been determined telecommunication

actual workload on the site was significant

work at each venue was to be suspended and from thispoint on our team had become busy with additional

5．Movements and Preparations Leading
up to the Games51

adjustments for extending each service for one year andresuming next year In principle the policy was toprovide the same level of services planned for the Games

Progress from the Time the Organization wason a one‑year sliding However it was not easy toEstablishedreview the technical conditions on the process of about

Soon after the Organising Committee was established“temporarily suspending or reducing the level of services

the back‑office network necessary for the operation ofthat had already been started or constructed and thenthe committee began operating in 2015 albeit on a small

resuming them one year after without significantly

scale As for the network for the Games after the Rio deincreasing costs” In addition it was hard to parallelly

Janeiro Games in the summer of 2016 the architecturechange the numerous contracts of multiple partner

was studied and designed in earnest and Games Data

suppliers in alignment with those conditions

Network began operation in March 2019 The back‑Fall in 2020

after the technology issues of theoffice network prior to the Games Data Network was a

postponement had been settled

network for staff use only with no concepts such as

requirements for “countermeasures against Coronavirus

the discussions on

CPN BON or OTN and connection restrictions based

disease 2019 (COVID‑19) infection” began Though

on the Deny‑list

responding to requests from FAs and others

In Games Data Network

only

we

necessary communication was allowed and the opera-

narrowed down requirements that were feasible withtion based on the “Allow‑list” was thoroughly imple-

minimal impact on Games Data Network ; as a result

mented including internal communication At the time

preparing small telecom facilities at some venues addingof the switchover interviews were conducted with thethe existing “Network services” and recommending the

FA staff in charge of each system their contractors andcommercial telecom services and so onother service providers but many settings were omitted

After this period in early spring of 2021 we restarted

due to misunderstanding or oblivion Conducting recon-

to expand and deploy Games Data Network to all

firmation we spent nearly two months to provide thevenues From this time several requirements that hadnecessary services in a stable manner After this we

not been communicated as network requirements andspent a year and a half as planned actually two and atherefore had not yet been implemented were discov-

half years due to the postponement of the Games so as

ered by the users who arrived at the venues For

to build up a strong network through daily operations

exampleand audits additional service installations and changes

redundancy we set new switches at several venues We

in the network configuration These two and a half years

had needed to work for this kind of “unknown”

also served as a period for accumulating the organization

requirements till the Game started We could overcomeknow‑how and training more than 1 000 persons who

such reviews/changes because of our “certain degree ofwere engaged in communication operations at TOC

flexibility ” which will be discussed later (Table 3)(Technology Operation Centre) and venues/facilities

due to missing requirement for switch

Incidentally

after the conclusion of the Games

Preparations proceeded relatively smoothly but a(October 2021 onward) the network configuration has

request from IOC led to a decision to change the venue tobeen simplified and the operations such as failure

Sapporo Odori Park in November 2019 which required

response time has been lowered back to the pre‑Games18

THE JOURNAL OF THE INSTITUTE OF ELECTRONICS INFORMATION AND COMMUNICATION ENGINEERS

Table 3

Major Events and Their Impact on Games Data Network

Telecom‑related major events

Preparation and operation of “Communication”

Initial stage
to Mar 2018

・Primary data centre & back office network operation started (Apr・The committee established FAs launched
2015)
・BCN requirements (fully redundant & under・Determined specifications and ordered constructions for broadcast
ground)conduits at each venue

Preparation
Apr 2018
to Mar 2020

・Venue Space Outline decided (Jun 2019)
・Decided to relocate Marathonʼs venue to
Sapporo Odori Park (Nov 2019)・Service quanties semi‑finalized (Feb 2020)・Games Data Network operation started (Mar 2019)
・Started designing telecom facilities for comp venues (Jun 2019)
・Finalized BCN conduit & venue design for Odori Park (Mar 2020)・Construction of telecom facilities at comp venues began (Jan 2020)

・Decided to postpone by one year (Mar 2020)
・Cost reduction request (Apr 2020)
・Additional study of COVID‑19 countermeasurerequirements (Dec 2020)
・Number of RTC advance orders of stakeholders
decided (Apr 2021)

・Construction at venues/facilities suspended (Apr 2020)and equipment partially removed & evacuated (‑Dec 2020)・Services/functions made degraded and interrupted (Jun 2020‑)
・Reviewed service quantities and venue designs (‑Dec 2020)・Second data centre operation and venue constructions resumed(Jan 2021‑)
・Realized additional requirements of COVID‑19 (Apr 2021‑)

Postponement
Apr 2020
to Mar 2021

Last minuteto Games
to Sep 2021

・Decided to strengthen FA network monitoring ・Infrastructure design change=FW (IPS) added (Jun 2021)
・Troubleshooting during installation (Jun ‑Jul 2021)(May 2021)
・FAʼs & Telecom services started (Jun 2021‑) ・Reviewed and started of operation (Jul 2021‑)
・Start of the Games (Jul 2021)

Periods in parentheses are for reminder purposes ; if deleted the text will be slightly larger

level

operation we also predetermined network equipment
such as those to be used as the core of the venue and52

Ensuring the Flexibility of the “Telecommunica-

those to be used at the edges and ordered and preparedtion Platform”─Its Importance and Limitation

in a tightrope walk based on the actual venue design

From the standpoint of those who create thewhile watching the leveling‑out of equipment produc-“Telecommunication platform” it is desirable to define

tions and deadlines of procurement

the business requirements including services andWhen the flexibility of the architecture did notvenues/facilities/offices and then determine the re-compensate for the additional requirement we some-quirements and design of the “Telecommunication

times customized services to some extent For example

platform” that handles them in an integrated manner In

the design was basically based on the premise ofreality however the only way was to construct andbusiness usage of the event stakeholders and theoperate the “Telecommunication platform” in parallelorganising committee and if it had been applied to thewhile studying or hearing the requirements for services

accommodation rooms in the athletesʼ village

office venue design and the like with reference to thebusiness‑use advanced Wi‑Fi access point (AP) would

past Gamestheand then to determine the detailed

have been used Naturally we decided not to do this but

requirements such as each service function Further-to procure and install APs for small offices from amore since the venues and the rooms to be used in the

Network services partner as “service” and have themvenues were not finalized until about a year before theoperate as part of Games Data Network

Games the quantity of services was not decided until the
final stage of the Games

It is impossible to complete a multi‑year project
which involves many parties and changes requirements

This meant that the “Telecommunication platform”

frequently only in a waterfall fashion So we treated

had to be flexible to a certain degree For example atsome changes or new requests with a certain‑level ofdesign phase we envisioned several patterns according

flexibility in the above‑mentioned fashion In most of

to the services and scales to provided according to thesuch cases these treatments led to a review of thecharacteristics of the venues and facilities ; the patterns

requirements and construction/operation

were applied for about 70 major locations After thequired coordination with the IOC technology partners

which re-pattern selection though the basic structure was notand other stakeholders

including those within thechanged the number of components and ports wereorganising committee to a greater or lesser degree

determined sequentially for each venue according to the

However the lack of time made such coordination

arrangement of rooms in the venue

insufficient The most symbolic example would be theFor ease ofSpecial Issue : Technology and Innovation in the Olympic and Paralympic Games Tokyo 202019

Figure 2

Overview Image of Operation and Monitoring

earlier‑mentioned implementation of the firewall in theing those not directly used by the organising committee

period just prior to the start of the Games (May‑June)and observed the impact of the progress of theconventions on Internet traffic (Figure 2) These are

6．Monitoring and Operation during the GamesThe monitoring and operation of Games Data Network
was basically based on the status and logs of the devices

also presented here in separate articles

7．Summaryconstituting the network (in a broad sense including

While maintaining the basic architecture of therelated servers other than network devices) and was“Telecommunication platform” we were able to respondconducted under the supervision of the TOCʼs Telecom

to the long‑term sequential determination of require-

and in cooperation with the venue teams

ments by providing several configuration patterns andHowever the total number of devices and their logs

other flexibility In addition the operational training

could be so large we could have fell into the status that

period of more than two years from the spring of 2018

we only watched each tree but did not see the woods

including a postponement period greatly contributed to

Therefore in addition to this kind of service layer andthe accumulation of organizational knowledge

fromdevice‑by‑device operation efforts were also made toprocess maturation with other organizations to human

get general correlations and overall user movements

resource development These were the main reasons

based on the whole information

why there were fewer problems than in past competi-

In addition to operation of the organising committee
the Internet usage of stakeholders was monitored andanalyzed on the Network services partner (ISP) side

tions and why we were able to respond quickly to any
problems that did occur
On the other hand problems tended to occur in FA

some public organizations and the Network

systems and a part of Network services immediately

services partner monitored Games‑related sites includ-

before and during the event as a result of inadequate

Also

20

THE JOURNAL OF THE INSTITUTE OF ELECTRONICS INFORMATION AND COMMUNICATION ENGINEERS

testing and advance preparation in the production
environment

This is a proof of the importance of

preparation and testing especially for large‑scale andshort‑term competitions The flexible and sequential
decision‑making mechanism agreed upon with the
Network services partners was useful in the events of

SAITO Wataru
Graduate School of Engineering The University of Tokyo (M S 1993) Graduate School ofBusiness Carnegie Mellon University (MBA2001) Seconded by NTT to the Tokyo 2020
Organising Committee since 2018 as the
Director of ICT solutions Department Technology Services Bureau (Executive Officer
Sogo Security Services Co Ltd )troubleEven with this preparation period and a certain degreeof flexibility there were still some things that could not
be handled The security enhancement of OTN that was
implemented immediately prior to the Games was a case

SHIGECHIKA Noriyuki
Ph D (Policy and Media) Telecom Advisor
Technology Services Bureau Tokyo 2020
Organising Committee from 2018 to the end of
the Games (Representative Director of RCA
Corporation )in point Although there are points to be regretted I
believe that it is a great achievement that the Games
were completed without any major problems based on
the agreement with the parties concerned(Received February 9 2022 ; Revised March 4 2022)㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇㍇

Special Issue : Technology and Innovation in the Olympic and Paralympic Games Tokyo 202021