SoftBank Corp. Demonstrates Effectiveness of Centimeter-wave Spectrum in Urban Areas in Preparation for 6G ~SoftBank verifies wide-area coverage and high-quality communication using the 7GHz band in urban environments~

SoftBank Corp. announced it successfully demonstrated the effectiveness of centimeter-wave spectrum*1 in the 7GHz band—which is under consideration as a frequency band for 6G—for wide-area coverage and stable communication quality in urban environments. The outdoor verification test, conducted in cooperation with Nokia, has been underway since June 2025*2. In this trial, SoftBank installed three experimental base stations supporting Massive MIMO in Tokyo’s Ginza district and confirmed that the 7GHz band enables both wide-area coverage and high-quality communication performance, even in dense urban environments.

*1 Centimeter waves are radio waves with wavelengths of 1–10 cm (frequencies between 3–30 GHz). The 7–24 GHz range, defined as FR3 (Frequency Range 3) in 3GPP, is expected to be one of the new frequency ranges for 6G.

*2 For more information, refer to SoftBank’s July 8, 2025 release titled “SoftBank Corp. First Telecommunications Carrier in Japan to Launch Outdoor Trial of 7GHz Band for 6G.”

Read the full press release here.
https://www.softbank.jp/en/corp/news/press/sbkk/2025/20251119_01/