China Mobile Sichuan and Huawei recently jointly built the world’s first 2.6GHz 4G and 5G concurrent integrated network demonstration area. The program has been successful, due to Huawei’s pioneering and innovative SingleRAN technology. It realizes co-site, co-coverage and concurrent of 4G and 5G with one deployment of single Massive MIMO AAU. This technology achieves “one deployment for 4G & 5G, benefiting both RATs”: 4G networks maintain the leadership, 5G networks pioneer the industry, and existing investments are protected to a maximum extent. This deployment will be the mainstream of evolution to 5G networks.