January 2024 Vol. 22 No. 112024

https://www.ntt-review.jp/archive/2024/202401.html

Front-line Researchers
Hiroaki Gomi, Senior Distinguished Researcher, NTT Communication Science Laboratories

Rising Researchers
Shinya Shimizu, Distinguished Researcher, NTT Human Informatics Laboratories

Feature Articles
International Standardization Trends
On Publishing Feature Articles on International Standardization Trends
Standardization Trends in Technologies Related to Fixed-line Networks
Standardization Trends Related to Wireless Communications
Standardization Trends Related to Environmental and Operations Technologies
Standardization Trends Related to Application- and Service-related Technologies

Feature ArticlesEfforts toward the Early Deployment of IOWN
Efforts of NTT IOWN Integrated Innovation Center toward the Early Deployment of IOWN
APN-controller Technology for IOWN Service Provision and Expansion
Data-centric Infrastructure for Supporting Data Processing in the IOWN Era and Its Proof ofConcept
Photonics-electronics Convergence Devices Enabling IOWN—Development of Second- andThird-generation Devices

Regular Articles
Artificial Neural Network Trained for Sound Recognition Exhibiting Human-like Sensitivity toSound Amplitude Modulation

NTT IOWN Technology Report
Release of NTT IOWN Technology Report 2023

Special Report
Growth Record of Kanagawa Prefectural Yokosuka Senior High School Students BecomingSports Analysts—Introducing NTT Human Informatics Laboratories’ Contribution Activities to theLocal Community

Feature Articles
International Standardization Trends

On Publishing Feature Articles on International
Standardization Trends▼Abstract
As a means of introducing Feature Articles on International
Standardization Trends in this issue, this article describes
the historical background and economic benefits ofinternational standardization. Since January 2023, Mr.
Seizo Onoe has been Director of the Telecommunication
Standardization Bureau of the International
Telecommunication Union (ITU). The Ministerial
Declaration of the G7 Digital and Tech Ministers’ Meetingcalls for cooperation in international standardization. This
resulted in interest in international standardization inJapan reaching an unprecedented level. Accordingly, thisarticle also introduces recent trends surrounding
international standardization and provides an overview of
the NTT Group’s efforts in this area.

Fora

De jure standard organizations

IOWN
Global Forum

3GPP

IEEE

OpenROADM

OpticalInternetworking
Forum
Telecom InfraProjectBroadband
Forum
TM Forum

O-RAN
ALLIANCE

NGMN
Alliance

Wi-Fi
Alliance

Automotive Edge
ComputingConsortium

Requirements
Regulation

ISO/IEC JTC1

RequirementsRegulation

Propose specifications

Regional standardization organizations

GSM
AssociationWorld Wide 5G Automotive
Web Consortium AssociationIEC
ITU

Proposespecifications

Regional standardization organization(Asia-Pacific Region)

APTParticipation
Reference tospecifications

National standardization organizations

TTC

ARIB

JISC

Feature Articles
Efforts toward the Early Deployment of IOWN

Efforts of NTT IOWN Integrated Innovation Center toward theEarly Deployment of IOWN
▼Abstract
NTT established NTT IOWN Integrated
Innovation Center to incorporate the concept ofthe Innovative Optical and Wireless Network(IOWN) as early as possible through thepractical application of various IOWN
technologies developed by NTT laboratories andthe provision of IOWN services/products to meetmarket needs and social demands. This article
presents the activities of NTT IOWN Integrated
Innovation Center, which aims to spread IOWN
widely and contribute to a transformation ofsociety.

World਼ੀযઠ
population880੏
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Photonics୾ਗ਼੆়Compact/low-power Consumption Optical Inter-board
electronics
崯崸崌崡Connection Devices
Convergence Optical Devices for Networks
Devices
IOWN1.0
IOWN2.0
IOWN1.0
IOWN2.02022ফ২
FY2022–2023ফ২FY2023–

FY2025–2025ফ২-Optical Inter-chip
Connection Devices

Optical Intra-chip
Connection Devices

IOWN3.0
IOWN3.0

IOWN4.0
IOWN4.0
FY2032–2030ফ২ਰఋ

2029ফ২FY2028–

Regular Articles

Artificial Neural Network Trained for Sound Recognition Exhibiting
Human-like Sensitivity to Sound Amplitude Modulation▼Abstract

Amplitude modulation (AM) is one of the most important sound physicaldimensions for auditory perception. Human listeners can detect subtle AMin such a way that their sensitivity to AM depends on the stimulus
parameters. Why does the auditory system exhibit such a form of AM
sensitivity? How does the brain conduct AM detection? To answer thesequestions, my research colleagues and I conducted a computational
study. We trained an artificial neural network (NN) model for soundrecognition and simulated AM-detection experiments in the model. We
found the emergence of human-like AM sensitivity in the model.

Dog barking

SpeechSynthetic
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