Research on Methods of Avoiding Interference in 1.8GHz Industrial Application Frequency Band

With the rapid development of my country's social economy, various industries have increasingly demanded bandwidth for wireless access systems, and the scarcity of frequency resources has become increasingly serious, which has brought great pressure on the supply of radio spectrum resources. According to the "Notice of the Ministry of Industry and Information Technology on Re-issuing the Frequency Use of the 1785-1805MHz Band Wireless Access System" (No. [2015] No. 65 of the Ministry of Industry and Information Technology), the 20MHz band is planned for wireless access systems, and each provincial radio The management agency can perform frequency assignment and management according to the characteristics of each province's own industry. In the actual management process, the frequency-using units often apply for broadband according to the maximum demand, which cannot effectively restrict the frequency-occupied units economically, which causes a great waste of radio spectrum resources. Therefore, radio frequency management agencies need to conduct in-depth research and accurate calculations based on the business model of frequency occupants and the technical principles of wireless access systems, so as to meet the business needs of various applicants while increasing the utilization of frequency resources, and to conduct frequency audits at the technical level. To promote the development of related technologies and industries, and avoid harmful interference factors with existing systems in the use of frequencies and stations.