NTT DOCOMO and D-Wave Boost Mobile Network Efficiency with Quantum Optimization

NTT DOCOMO, a mobile operator in Japan, and D-Wave Quantum (News - Alert) announced a successful quantum optimization pilot that improved mobile network performance. Conducted in various regions of Japan, including Tokai, Chugoku, and Kyushu, it demonstrated the potential of quantum computing to transform network management.

By leveraging D-Wave's annealing quantum computing technology, DOCOMO achieved a 15% reduction in paging signals during peak times, leading to more efficient network operations and potential reductions in infrastructure costs.

“We anticipate that our quantum optimization strategy will further refine network efficiency, allowing us to maintain high-quality service without additional infrastructure investments as network traffic increases,” said Takatoshi Okagawa, director of research and development strategy at NTT (News - Alert) DOCOMO.  “With D-Wave’s hybrid quantum technology, we aim to set a new standard in the telecommunications industry for operational performance.”

The pilot focused specifically on optimizing base station tracking areas—small geographical zones responsible for sending paging signals and managing device connectivity as users move between stations.

D-Wave’s quantum technology analyzed extensive historical data on device movement, enabling DOCOMO to predict future patterns and optimize the selection of base stations to maintain connections.

D-Wave's hybrid quantum solver completed the optimization task in just 40 seconds, compared to the 27 hours required by traditional methods. This rapid processing allowed for a 15% reduction in paging signals, which, in turn, increased the capacity for connected devices by approximately 1.2 times during high call volume periods. This helps alleviate network congestion, ensuring smoother traffic flow even during peak usage.

DOCOMO plans to roll out the quantum optimization solution across its branch offices in Japan in the coming months. The company also said it is exploring further applications of quantum optimization across other business areas, including finance, retail, logistics, and construction, signaling a broader adoption of quantum technology in its operations.

“Telcos are faced with a slew of increasing operational complexities — from 5G implementation to ever-shifting consumer demands — and need novel solutions to maintain a competitive edge,” said Dr. Alan Baratz, CEO of D-Wave. “DOCOMO’s successful pilot sends a clear signal — that today’s quantum technologies are capable of solving telcos’ complex optimization problems, with the potential to elevate customer satisfaction, maintain network performance and mitigate rising infrastructure costs.”