In this presentation, we will talk about our trial in the nationally funded R&D "5G-advanced project", which we have been working on for four years from 2019 to 2022 to build a mmWave (FR2) communication system based on an SDR technology that Kozo Keikaku Engineering has cultivated over many years. The goal of this project was to provide highly reliable services in the mmWave band that meet various combinations of communication quality requirements, for example, low latency and mMTC, eMBB and URLLC, and so on. To achieve these requirements, the University of Electro-Communications (UEC) proposed a grant-free non-orthogonal multiple access (PHLEX1) that meets the demand for low latency and multiple connections, and a coordinated multi-point for mmWave beamforming (PHLEX2) which avoids communication interruptions due to blockage. We have developed (1) advanced mmWave hybrid beamforming technology and (2) multi-RU coordinated control technology, which are the keys to realize mmWave communication systems, and (3) advanced software-based wireless physical access represented by 5G NR. As for (1), we established a hybrid beamforming technology by combining analog control and digital control using a 32-element array antenna, and constructed an RU (4 related patents registered). In (2), we established a technology to integrate and control multiple RUs with the above (1) necessary for PHLEX2 from a single DU. In addition, (3) has acquired the technology by expanding the 5G specification based on the 5G RAN open source (OAI: OpenAirInterface) and realizing PHLEX1/PHLEX2 on our mmWave system. These established technologies are one of the few demonstration base cases using actual equipments for the Beyond 5G era.