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 scaling AI-driven Open RAN to improve VoIP performance, 5G efficiency, and network automation across Japan. With cloud-native architecture, edge inference, and energy savings above 20%, the operator shows how software-defined telecom networks can reduce costs while protecting latency, jitter, voice quality, and real-time communications for users nationwide.
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
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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.
Rakuten Mobile is testing smart surveillance using edge AI at Kobe’s Noevir Stadium to boost public safety and ease network load. Partnering with AWL and Vissel Kobe, the initiative processes video locally for faster response and reduced costs. It aims to create a flexible AI system for use in venues ranging from stadiums to remote areas.
Rakuten Mobile posted its first quarterly EBITDA profit, signaling progress in its greenfield strategy despite wider net losses. The telecom unit’s revenue rose nearly 11 percent, and subscriber growth continued. Positive EBITDA and reduced losses hint at a potential turnaround for the ambitious, cloud-native network operator within Rakuten Group’s evolving telecom push.
Rakuten Mobile is making waves with its groundbreaking collaboration with Fujitsu to accelerate 5G network expansion in Japan. By incorporating Fujitsu’s energy-efficient 44R21 radio units, Rakuten Mobile is poised to enhance Sub6 network coverage quickly.
Rakuten Mobile launches “Rakuten AI for Business,” a Generative AI solution designed for Japanese corporate environments, enhancing tasks like document creation and translation with ease. Featuring robust language processing and seamless web browser access, it’s both efficient and affordable.
Rakuten Mobile is amplifying its presence in the U.S. to push Open RAN forward, a key focus of the NTIA’s Public Wireless Supply Chain Innovation Fund. This move aims to strengthen the telecommunications supply chain and foster competition in the wireless sector.
