EU-JP Collaboration

6G-MIRAI-HARMONY: 6G-MIRAI (EU) & HARMONY (Japan)

6G-MIRAI-HARMONY is the EU-JP cross-regional 6G research project. Based on the EU-Japan third Digital Partnership Council (held May 2025 in Tokyo), the EC announced: „The partners agreed to expand their cooperation on beyond 5G/6G research, with a focus on the joint project 6G MIRAI-HARMONY which aims to develop AI powered networks for user-focused communications.“

For the collaboration on advancing AI-native wireless communication systems, EU 6G-MIRAI and Japan’s HARMONY project have the defined the following three pillars:

1. Research: academic exchange, workshops, etc.

Tutorials & presentations: Dr. Renato L. G. Cavalcante (Fraunhofer HHI) delivered a tutorial on resource allocation for wireless networks for EU 6G-MIRAI and Japan HARMONY, showing how fixed point theory in Thompson and Hilbert projective metric spaces enables a systematic derivation of optimal algorithms for joint power control, beamforming, and site selection within a unified framework. The presented theory, which also finds applications in other fields — including machine learning –, is an elegant example of how advanced mathematical tools can provide efficient and scalable solutions to complex wireless system design problems.
Prof. Umebayashi (Tokyo University of Agriculture and Technology) „SIMO Communications with Low-Resolution ADCs“
Prof. Sanguinetti (CNIT) „Towards 6G MIMO“
Tanguy Kerdoncuff (Ericsson) „AIML in 6G MIMO“

2. (Pre-)Standards: interaction on research topics with standards relevance

Meetings: On March 4, 2026, presentations by KDDI, Kyocera, University of Tokyo (HARMONY) and Ericsson, Telefonica, Apple (6G-MIRAI) launched the discussion on the targeted project results which are relevant for 3GPP RAN1, RAN2, SA2, the AI-RAN alliance and XGMF. The work was synchronised again at the next 6G-MIRAI-HARMONY plenary co-located with EuCNC 2026, Malaga.
September 1, 2026: presentations by KDDI, Kyocera (HARMONY) and Apple (6G-MIRAI) with a discussion on mapping the standardisation research items to the common 6G-MIRAI-HARMONY framework incl. the RAN-Core harmonization.

References: A. Nakao, 6G-AI WG, XGMF, 2025.

3. PoC / datasets: cooperation on datasets, methodology, etc.
Meetings: on August 4, 2026, an EU-Japan workshop on validation and demonstration activities took place. During the session, the JP partners presented their plans for evaluating research outcomes in the University of Tokyo campus testbed while the European partners presented the ongoing activities of WP3, including scenarios, benchmarking methodologies, dataset, validation frameworks and available testbed capabilities.