With the completion of the 3GPP SA standard on time, the attention of the optical communication industry on 5G has been raised again. Industry news indicates that the construction of 5G wireless network will start in the second half of 2019 and scale construction will be completed in 2020. So what impact will 5G bring to the optical communications industry? How will the network architecture change? How many “G” will the optical module market go to?
It is undeniable that the emergence of mobile Internet has subverted the traditional mobile communication business model, provided users with unprecedented use experience, and exerted an important influence on all aspects of people's work and life. Facing 2020 and the future, mobile Internet will promote the further upgrade of the information interaction mode of human society, providing users with more immersive and extreme business experience such as augmented reality, virtual reality, ultra HD (3D) video and mobile cloud. The further development of mobile Internet will bring the future growth of mobile traffic over a thousand times and promote a new round of changes in mobile communication technology and industry.
The emergence of the Internet of things has expanded the service scope of mobile communication, extending from person-to-person communication to object-to-object and human-to-object intelligent interconnection, so that mobile communication technology has penetrated into a wider range of industries and fields. Facing 2020 and the future, mobile medicine, Internet of vehicles, smart home, industrial control and environmental monitoring will promote the explosive growth of Internet of things applications. Hundreds of billions of devices will be connected to the network, truly "Internet of everything" will be realized, and an unprecedented scale of emerging industries will be created, bringing infinite vitality to mobile communications. At the same time, massive device connections and diversified Internet of things services will also bring new technical challenges to mobile communications.
From the business demand level to the network level, it puts forward the demand of "big bandwidth", "low delay" and "big connection". For 2020 and the explosion of mobile data traffic in the future, the mass connection of Internet equipment, as well as the widely application of the vertical industry demand, 5G mobile communication technology in the peak rate, mobility, time delay and spectrum efficiency, on the basis of traditional indicators, such as the increase rate of user experience, the density of the number of connections, flow density and the ability to four key indicators of energy efficiency. Specifically, 5G user experience rate can reach 100Mbps to 1Gbps, supporting mobile virtual reality and other extreme business experience; The connection density can reach 1 million/km², effectively supporting the access of massive IOT devices; The traffic density can reach 10Mbps/m², supporting the growth of mobile traffic over 1000 times in the future. Transmission delays can be on the order of milliseconds, meeting the demanding requirements of the Internet and industrial control.
