Voice over New Radio (Voice over New Radio) is a pure 5G access based solution, which implements both voice and data services in 5G network. In the early stage of 5G SA deployment, because of the small coverage of 5G NR, EPS Fallback became a solution for 5G voice evolution. With the gradual improvement of 5G NR coverage, users will be able to experience the higher definition and high quality voice and video call services brought by VoNR, and enjoy the 5G high-speed data Internet service while dialing the phone.
This test site verifies that the, EPS Fallback call in Vo5G can be quickly reselected back to 5G network, VoNR audio and video calls and 5G to 4G to 5G continuous switching. In the process, many dialing tests were carried out, the success rate was 100%, the call establishment was fast, the sound quality was clear and smooth, and the switching was smooth and lossless. The test experiment network is built based on the target commercial network architecture, and the test experiment network is built by using the target commercial network architecture.HUAWEI5G end-to-end commercial solution, including 5G Smart Core Network, 5G Wireless access Network, and the first 5G dual Mode Terminal Mate 20X Intelligentcellphone。
Voice scheme is one of the important foundations of 5G SA.China MobileHuawei has successfully completed this systematic 5G voice test, and the experimental network is highly consistent with the target commercial network, which marks a big step forward for China Mobile in the commercial maturity of 5G.