New World Explored by 5G

摘要

5G services have already been launched by more than 50 telecom operators in 28 countries in 2019. Four operators in Japan will also be ready for starting 5G commercial services in 1Q/2020. Superior wireless features or 5G; (1) eMBB: enhanced mobile broadband up to 20Gbit/s, (2) URLLC: ultra-reliable and low latency communications less than 1ms, and (3) mMTC: massive machine type communication over 1 million devices/km², open a door to realize a new world, that we had never experienced before. “Augment” is a key word for 5G services. In this talk, some examples of `Augment's will be given; how sports, city walks, and entertainments will be augmented and innovated by 5G technologies will be presented, and the audiences will be experienced such a new world by watching several demonstration videos. In addition to a new real experience for personal services, 5G is also strongly expected to solve variety of social issues, such as autonomous driving, remote control of construction machine, and remote surveillance with 4K/8K video. Low latency feature of 5G is essential for such critical missions. KDDI research inc. has been studying various advanced technologies, which supports the basis of the 5G services. In our optical access technology using the analog transmission technique, we have recently succeeded in a 1024QAM transmission for mobile fronthaul links for the first time. In our post-quantum cryptography technology, breaking several world records in cryptanalysis were reviewed. We have recently proposed the fastest algorithm for fully homomorphic encryption, which might be utilized for privacy-preserving machine learning as a service. Finally, tele-existence as a rather future oriented demonstration was presented, which is a robotic system that expands the presence of human beings. An experience of remote traveling to Ogasawara island 1500 miles away from Tokyo, where the traveler touched a sea turtle with a real sense of touch through an avatar robot, was demonstrated. A new world explored by 5G is widely forecasted. 5G is just in front of us. KDDI implements various initiatives and aims to provide an unlimited world in the coming 5G era.