Kyocera’s multi-hop mmWave repeater trial with Qualcomm shows how 5G coverage can expand beyond obstacles without costly base stations. For VoIP providers, enterprises, and mobile operators, stronger high-frequency networks promise faster, lower-latency voice, video, UCaaS, and cloud communications across campuses, smart cities, stadiums, factories, and fixed wireless deployments worldwide today.
Japan’s top mobile operators are exploring shared 5G mmWave infrastructure to cut deployment costs and improve dense urban coverage The KDDI NTT Docomo SoftBank and Rakuten Mobile study could boost high-speed mobile VoIP low-latency calling and next-generation business communications across stadiums stations and smart city hotspots in Japan more efficiently
Rakuten Mobile is reshaping Japan’s mobile roaming strategy with KDDI as it accelerates 5G network independence. For VoIP providers and business communications users, this shift could impact coverage quality, call reliability, mobile VoIP performance and rural connectivity as Rakuten balances infrastructure expansion, spectrum investment and customer experience before 2026’s transition
Japan is leading the Asia-Pacific region in Open RAN (O-RAN) technology, showcasing its advanced role in integrating virtualized RAN (vRAN) solutions. Rakuten Mobile operates the world’s largest O-RAN network, influencing both domestic and global markets, with telecom giants like NTT Docomo, KDDI, and SoftBank gradually adopting these cutting-edge solutions.
KDDI and HPE are set to revolutionize Japan’s digital landscape with their upcoming AI data center in Osaka. This collaboration aims to boost AI application development and LLM training. With Nvidia’s Blackwell architecture and advanced cooling, this facility promises peak performance and sustainability.
KDDI and AMD’s partnership marks a strategic move to enhance 5G virtualized networks by 2026. Leveraging AMD’s 4th Gen EPYC processors, the collaboration aims to optimize network performance and energy efficiency to meet rising wireless data demand.
KDDI and Okinawa Cellular, in partnership with Starlink, have launched au Starlink Direct — Japan’s first direct-to-device satellite service. Starting April 10, 2025, au users can enjoy seamless connectivity even beyond network zones, enabling emergency alerts, location sharing, and AI-powered assistance, all at no extra cost.
Samsung and KDDI Research are spearheading the integration of artificial intelligence into future 6G networks. By enhancing multiple-input multiple-output (MIMO) systems with AI, they aim to boost transmission speeds and network capacity, revolutionizing mobile networks.
KDDI and Space Data, in partnership with JAXA, are developing a virtual ISS to simulate space robot operations from April to October 2025. Using real ISS data, the project aims to enhance robotic accuracy and efficiency.
KDDI has joined the Aduna API joint venture, reinforcing its commitment to open network innovation. Partnering with telecom giants like Vodafone and AT&T, Aduna fosters cross-industry collaboration.
