Larger traffic data, lower power consumption, higher network efficiency, and better user experience are the core of future mobile networks. In order to deploy technologies and services earlier, international and domestic research on 5G is more important than 4G. Earlier.
At the beginning of this year, the country officially launched 863 major projects around 5G. The Future Mobile Communication Forum (FuTURE Forum) took the lead in organizing a series of international seminars and cooperation, and further strengthened the cooperative R & D efforts of industry, education and research on 5G.
Regarding the definition of 5G, Professor You Xiaohu, leader of the 5G expert group of China ’s 863 Program and vice chairman and secretary-general of the FuTURE Forum, said in an exclusive interview with this reporter that by 2020, supporting wireless data traffic growth will require a future wireless network utilization revolution To achieve technological change, but for a detailed description of the technology, it will take at least 2 years for the industry to reach consensus and develop it into a global standard.
The evolution of existing networks to 5G, Professor You Xiaohu concluded that there are two biggest challenges: One is that the limits of existing networks have to be broken, and more complex calculations must be used in exchange for higher network performance. The technical challenges are great ; The other is the real improvement and guarantee of user experience, which is difficult to grasp, because it is mixed with factors of subjective evaluation.
"5G is not just a technological step, but more importantly, it is a brand new user experience. Applications that were difficult for users to experience in the past, such as virtual reality, augmented reality, 3D, etc., are not unreachable. Network, terminal, and supporting The display technology is the key. "
Three-year goal of the first phase
According to Professor You Xiaohu, in the national 863 major project for 5G launched this year, the project team has invested heavily in research and development in several aspects. First, through multi-party cooperation, the 5G spectrum and necessary technologies are determined to focus on high-performance 5G Technology; Second, focus on dense and large-capacity 5G wireless network architecture; Third, evaluate and test 5G technology.
It is reported that after 3 years of research and development, the first phase of 5G will be achieved around 2015, including dense network deployment, multi-antenna array technology, user rate, transmit power, spectrum efficiency, energy consumption efficiency, etc. At the same time, there will be new results in applications and new terminals.
"Three S" helps network intelligence
In the 5G-oriented network transformation, network intelligence has been highlighted, and Professor You Xiaohu especially emphasized the importance of the "three Ss" of SON, SDN, and SDR.
According to his explanation, network intelligence is no longer a new concept. The application of SON (network self-organization, self-optimization, self-configuration, etc.) is still in its infancy, but it represents the future development direction of the network. The purpose of SDN (Software Defined Network) is to achieve flexible dynamic configuration and virtualization of the network and energy saving. The industry has also invested a lot of research on how this technology can be better applied to wireless networks, and believes that this technology will be completely Change the existing network architecture. SDR based on software radio technology "is expected to be applied farther and involves ICT convergence."
Although there is no clear definition of 5G technology, many countries in the world have begun to accelerate research and development in this area. The EU launched the "METIS" project for 5G at the end of last year, with participation from Huawei and other Chinese companies. The 863 project launched in China this year also invited some European companies to participate.
Professor You Xiaohu said that on the basis of basic research on 863 major projects in the country, the 5G Promotion Group will also establish a 5G technology innovation alliance to promote 5G research through more international cooperation.
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