In 2020, 5G commercial networks will be deploying, and macro base station construction is in full swing. With the in-depth deployment of 5G networks, the increase in user penetration, and the increase in bandwidth and other connection requirements brought by 5G business development, the demand for small base stations will gradually increase. With the introduction of higher frequencies above 6GHz in the future, ultra-dense networking based on deep coverage and capacity supplementation will be gradually constructed in the future with high traffic and large connection hotspots. 5G small base stations will gradually achieve the role of "heat absorption" and "blind" for macro base stations. 5G small base stations can meet the indoor scene requirements of most 5G services. Driven by market demand in the next three years, 5G small base stations will achieve large-scale outbreaks. Based on this background, China International Optoelectronic Exposition (CIOE) will work with the PPTN to explore 5G small base station topics such as solutions, construction difficulties and challenges and technical barriers, application scenarios and development trends.