“Pokémon GO Fest” is a series of large-scale events organized by Niantic, developer of the mobile augmented reality (AR) game “Pokémon GO.” Held in cities around the world, Pokémon GO Fest combines the digital gameplay of the mobile app with real-world exploration and social interaction. Pokémon GO Fest has been held in Japan five times to date, most recently in Osaka’s Expo ’70 Commemorative Park from May 29 to June 1, 2025, and drew huge crowds of players from across Japan and abroad.
When thousands of players gather in one place and use their smartphones simultaneously, network congestion can be a major challenge for mobile network operators. Since stable connectivity is crucial to the Pokémon GO player experience, ensuring that a robust network infrastructure is in place is critical.
To make sure players could comfortably enjoy the event in Osaka, SoftBank Corp. (TOKYO: 9434) introduced several network measures. These included deploying aerial work platforms to extend coverage and offering Wi-Fi powered by the “Starlink Business” satellite communication service. SoftBank spoke with two engineers who were involved in the initiative to learn more about how SoftBank supported this large-scale event.
Network upgrades put in place to ensure stress-free gameplay
At large-scale events like the Pokémon GO Fest, participants constantly use their smartphones to catch Pokémon, complete exclusive missions and move about the venue. Because the game relies heavily on real-time data communication, GPS tracking, and movement detection, network traffic tends to spike dramatically at event areas.
Yusuke Oku
Network Quality Section
Yuta Okimoto
Network Design Section
How did this year’s network measures change compared to previous events?
Oku: We expected higher attendance compared to events in previous years, so we strengthened our system comprehensively. In addition to conventional mobile base station vehicles, we utilized aerial work platforms that allowed us to install antennas higher up, expanding network coverage significantly.
We also provided a Wi-Fi service for SoftBank customers in collaboration with Starlink Business, which helped us handle the increased number of users and data traffic within the park.
What specific strategies did you focus on to ensure visitors had reliable communication?
Oku: We fully utilized 5G’s wide bandwidth to deliver high-speed connections. We also deployed Wi-Fi linked with Starlink Business for SoftBank customers. Because network load tends to concentrate in certain areas, we continuously monitored usage and distributed network traffic in real time. Months before the event, we analyzed forecasted visitor flows and optimized the placement of mobile base stations, antenna angles and output, as well as frequency allocation. As a result, even during peak hours and in crowded areas, we were able to keep connections stable.
Human efforts were also key. Coordination between departments, on-site construction and real-time monitoring all helped keep communications smooth behind the scenes.
It sounds like teamwork across departments was critical in supporting so many visitors.
Okimoto: Absolutely. In addition to equipment upgrades, collaboration among members from network design, construction, and quality management departments was essential. Everyone worked together in all areas—from fast-tracking temporary base station installations to coordinating between monitoring and on-site teams.
As a result, players were able to enjoy the event without worry, and even Niantic, the event organizer, praised the stability of our network. That made us really proud.
Thanks to both our robust infrastructure and dedicated teamwork, SoftBank successfully delivered a comfortable network experience across the entire venue.
Ensuring reliable connectivity through a combination of diverse solutions
What impact does network congestion have on players?
Oku: When networks become congested, gameplay slows or connections drop, which can be very frustrating for players. That’s why our system to monitor and balance network load in real time was so important.
To address this, we supplemented existing base stations around the venue with mobile base station vehicles. Multiple frequency bands were used simultaneously, and network distribution was adjusted dynamically while referring to real-time traffic data. The team also fine-tuned antenna settings and frequency allocation throughout the day to ensure stable service, even during periods of peak congestion.
Were there any memorable moments on-site during the event?
Oku: Yes, many players took photos in front of our mobile base station vehicle, which had a big Pokémon GO banner on it. This brought smiles to our faces.
Behind-the-scenes efforts key to connectivity for massive event
While it may be easy to take smooth communication for granted, behind the scenes lie months of planning, on-site adjustments and cross-functional collaboration to facilitate events with huge crowds.
How will the insights gained from this event inform future large-scale network projects?
Oku: We learned how vital it is to understand the event organizer’s vision and propose an optimal communication setup accordingly. We’ll continue to work to deliver stable connectivity that allows everyone to enjoy events like this one to the fullest.
SoftBank engineers supporting seamless connectivity so players can enjoy Pokémon GO
What value does SoftBank aim to bring to future large-scale events?
Okimoto: We want to continue providing environments where users can have fun and organizers can operate safely, without worrying about connectivity.
Oku: We’ll keep applying our on-site experience to create even more reliable networks so participants can enjoy events with peace of mind.
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(Posted on October 15, 2025)
by SoftBank News Editors
