4G and 5G Integrated Network in Chengdu: "One Deployment for 4G & 5G" Has Become the Mainstream Chengdu, China, April 11, 2019 (GLOBE NEWSWIRE) -- via NEWMEDIAWIRE -- China Mobile Sichuan and Huawei recently jointly built the world's first 2.6GHz 4G and 5G concurrent integrated network...