The Communication Service/Software Laboratory (CS Lab) is stablished in 2019. It is a research center under the College of Computer Science, National Yang Ming Chiao Tung University. The main purpose of the CS Lab is to advance the research and development of mobile communication networks, and to cooperate with professors and industrial experts in related fields to develop cutting-edge technologies for mobile communication networks. We also develop open-source software and provide professional services to the communities.