• SoftBank partnered with US aerospace firm Sceye to advance commercial high-altitude platform stations for mobile connectivity in Japan.
• The companies completed a stratospheric connectivity demonstration, linking Sceye’s HAPS to SoftBank’s core network for direct-to-device service.
• Tests covered SMS, voice calls, internet access, video streaming, emergency alerts, drone communications, edge computing.
• An onboard processing server delivered 68 milliseconds average round-trip latency, over 40% lower than cloud processing via the internet.
• The ST1 platform flew more than 15,000 km from New Mexico to Japan in 13 days, operating around 16.5 km altitude.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. SoftBank Corp. published the original content used to generate this news brief via PR Newswire (Ref. ID: FR38716) on September 03, 2026, and is solely responsible for the information contained therein.