SORACOM Achieves Democratization of IoT Technology with an IoT Solution on AWS, Available in over 160 Countries and Regions

As a technology that connects devices, such as sensors, to the cloud through the internet, IoT is attracting attention in promoting digital transformation. SORACOM implements the functions necessary to realize the IoT as software on the cloud, making it easy to implement.

“With the idea of democratizing technology, we launched SORACOM to realize a solution that virtually anyone could easily use to build IoT systems quickly, at a low initial cost. Since we released SORACOM Air in 2015, we have been providing an innovative platform service,” says Akio Katayama, senior executive officer and senior vice president of engineering at Soracom.

Soracom has been operating all its services on AWS since releasing SORACOM Air in 2015 because AWS is a global infrastructure available all over the world. AWS provides scalability to facilitate rapid expansion of transactions, and it is robust enough to support the company’s communication platforms. “SORACOM is a platform designed to be based on AWS. Using AWS to span to regions around the world and provide APIs to control various functions, we can easily expand our services outside of Japan. Considering our platform serves billions or tens of billions of IoT device connections, the scalability AWS provides is essential. It was also attractive that AWS has all the necessary services for security and fault tolerance,” says Katayama.

The communication infrastructure of SORACOM consists of Polaris—which controls communication such as packet transmission, line management, bandwidth control, and access control—and Dipper, which performs backend processing such as session management, authentication, and billing. Both are loosely connected and linked with functional microservice components. Polaris is a stateless communication function, making it easy to fail over. The Dipper backend oversees the stateful area, and Dipper itself consists of microservices. It uses Amazon DynamoDB as the data store, creating robustness by its high stability and virtually unlimited capacity. The microservices are monitored by the monitoring system Hubble and can recover automatically in the event of error.

“We designed the architecture with fault tolerance in mind and in line with AWS best practices. We introduced microservices to achieve redundancy using multiple Availability Zones, making it easier to update services with independent lifecycles and achieve development, maintenance, and operation with a small number of people,” says Katayama.

The company began development of SORACOM in the spring of 2015. Only 6 months later, in September, it released SORACOM Air and SORACOM Beam, a data transfer support service. At the time, 10 members of the developer team were assigned to developing packet-exchange functions, billing and authentication functions, and operation management functions. They continued development while having biweekly meetings. “Our AWS contact gave us advice about network-related processing, such as assigning IP addresses and connecting to a carrier, which was very helpful,” says Katayama.

The team has continued to enhance functionality since the solution’s release. It currently has 40 engineers divided into 7 teams, who provide releases on a biweekly cycle while developing new services. They also modify the architecture continuously, such as by migrating services to containers. In 2021, the company engaged AWS Enterprise Support. Soracom received technical and cost-optimization support and introduction to new services.

“Through AWS Enterprise Support cost-optimization support, we applied Amazon Elastic Compute Cloud (Amazon EC2) Reserved Instances and Savings Plans and ceased unnecessary services. As a result, we reduced our AWS costs by approximately 20 percent over a few months despite the steady increase in the number of subscribers. Using blue/green deployment on AWS, we were able to automate deployment,” says Katayama.