Announced details
Broadcast network operations, broadcast video transmission, and business continuity planning in disasters
Media Links, Seiko Solutions, TBS Television and Mainichi Broadcasting System were the 4 companies that jointly conducted the trial. NTT DOCOMO and NTT DOCOMO BUSINESS were cooperating companies. Other capital and personnel relationships: not disclosed.
Seiko Solutions Inc.: Headquarters in Chiba, Chiba Prefecture; President and Representative Director Jun Sekine (関根 淳), TBS Television, Inc.: Headquarters in Minato-ku, Tokyo; President and Representative Director Masamine Ryūhō (龍宝 正峰), Mainichi Broadcasting System, Inc.: Headquarters in Osaka, Osaka Prefecture; President and Representative Director Yōichi Mushiake (虫明 洋一), NTT DOCOMO, INC.: Headquarters in Chiyoda-ku, Tokyo; President and Representative Director Yoshiaki Maeda (前田 義晃), NTT DOCOMO BUSINESS, Inc.: Headquarters in Chiyoda-ku, Tokyo; President and Representative Director Katsushige Kojima (小島 克重)
From Osaka (the verification room provided by NTT DOCOMO BUSINESS) to Makuhari Messe, Chiba
In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.
Based on research by the 6 companies (as of June 2026)
| Item | Details |
|---|---|
| Names of Products / Services Covered | 5G network slicing technology, MEC Direct® technology, Multipath Transfer Gateway (MP Transfer Gateway) |
| Counterparty | Seiko Solutions, Inc., TBS Television, Inc., Mainichi Broadcasting System, Inc., NTT DOCOMO, INC., NTT DOCOMO BUSINESS, INC. |
| Counterparty overview | Seiko Solutions Inc.: Headquarters in Chiba, Chiba Prefecture; President and Representative Director Jun Sekine (関根 淳), TBS Television, Inc.: Headquarters in Minato-ku, Tokyo; President and Representative Director Masamine Ryūhō (龍宝 正峰), Mainichi Broadcasting System, Inc.: Headquarters in Osaka, Osaka Prefecture; President and Representative Director Yōichi Mushiake (虫明 洋一), NTT DOCOMO, INC.: Headquarters in Chiyoda-ku, Tokyo; President and Representative Director Yoshiaki Maeda (前田 義晃), NTT DOCOMO BUSINESS, Inc.: Headquarters in Chiyoda-ku, Tokyo; President and Representative Director Katsushige Kojima (小島 克重) |
| Relationship with the Company | Media Links, Seiko Solutions, TBS Television and Mainichi Broadcasting System were the 4 companies that jointly conducted the trial. NTT DOCOMO and NTT DOCOMO BUSINESS were cooperating companies. Other capital and personnel relationships: not disclosed. |
| Launch date | 10-12 June 2026 (field trial dates and results) |
| Applicable area | Broadcast network operations, broadcast video transmission, and business continuity planning in disasters |
| Location | From Osaka (the verification room provided by NTT DOCOMO BUSINESS) to Makuhari Messe, Chiba |
| Location scale | Long-distance transmission route between Osaka and Tokyo |
| Source | Based on research by the 6 companies (as of June 2026) |
Items this document does not state (9)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The field trial was conducted to demonstrate the potential for reducing broadcast network operating costs by using carrier 5G instead of dedicated lines or dark-fiber-equivalent circuits, as well as the potential for business continuity planning in disasters by rapidly establishing circuits on site.