SoftBank and JiJ jointly implemented PoC, which utilizes Ising machines, a type of quantum computing technology, to automatically adjust mobile base station parameters. They successfully improved download data speeds by approximately 10% without adding additional hardware.

In this initiative, the distribution of areas where carrier aggregation (a method of increasing communication speeds by aggregating multiple frequency bands) is available is represented in a mathematical model based on the signal conditions from multiple base stations, and optimal settings are quickly calculated using mathematical optimization. SoftBank’s testing in the Tokyo area demonstrated an approximately 10% increase in download data speeds using carrier aggregation, and data traffic volume also increased by up to 50%. This demonstrated that communication quality can be significantly improved using only existing equipment.

JiJ is a startup that uses quantum computing and mathematical optimization to solve social and industrial challenges.

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