According to Huawei's official news release, Huawei has fully completed the IMT-2020 (5G) promotion group 5G-A key technology test, and a number of technical performance has made major breakthroughs.。It is reported that 5G-A (5G-Advanced) is a key stage in the evolution of 5G to 6G, also known as 5.5G。Huawei China official micro-news said that under the organization of the IMT-2020 (5G) promotion group, Huawei had taken the lead in completing 5G-A (5.5G ） 全部功能测试。Recently, Huawei has fully completed the 5G-A technology performance test.。The test results show that Huawei has made significant performance breakthroughs in a number of 5G-A uplink and downlink ultra-wideband technologies, and for the first time applied end-to-end cross-layer collaboration technology to 5G-A broadband real-time interaction, achieving key progress in capacity and latency.。