Research On 5G Base Station Deployment Strategy And Interference Coordination Method In Rural Areas

With the Rural Revitalization Strategy and the gradual promotion of digital village construction,it is imperative to use information technology to promote the transformation of agricultural production and life style.5G technology is closely related to the development of rural areas,which can make agricultural big data collection faster,agricultural production and processing,agricultural product operation more intelligent,and the development of e-commerce and tourism in rural areas more extensive.As an infrastructure communication facility,5G base station can alleviate the development lag caused by insufficient infrastructure communication facilities and poor data transmission in rural areas,and improve the development level of informatization in rural areas.5G base station deployment is the basis for realizing 5G network development in rural areas.5G base station deployment in rural areas should integrate the network construction capacity and business scenario requirements,and solve the capacity requirements of hot areas by deploying micro base stations on the basis of wide area coverage.However,due to due to the same frequency deployment between micro base stations,the interference between base stations can not be ignored.By providing a reasonable and feasible deployment strategy of 5G base stations in rural areas and solving the problem of interference coordination between base stations in the planning stage,it can effectively reduce the capital investment and system power consumption required for later deployment,improve the user service quality and improve the utilization rate of spectrum resources.The main research contents of this paper are as follows:1)The base station deployment strategy in 5G network environment in rural areas is studied.According to the network planning process,the service demand for 5G base station deployment in rural areas,the scale of 5G base station network in rural areas,and the coverage of 5G base station sites in rural areas are analyzed.2.6G and 3.5G frequency bands are selected as the coverage frequency bands of 5G network in rural areas.The strategy of coordinated deployment of micro base stations in macro stations is proposed,and the deployment is carried out on demand,and the common address upgrade is carried out by combining the existing base stations as far as possible.2)For densely deployed micro base stations in the deployment strategy,an optimized deployment method of micro base stations based on branch demarcation method is proposed in the planning and deployment stage.In other words,task delay can be minimized by optimizing the location of micro base station.The branch definition method is used to obtain the optimal solution.Through simulation experiments and comparison results of different algorithms,it is proved that the branch demarcation method can obtain the minimum task delay and reduce the energy consumption of micro base stations,thus reducing the number of micro base stations to be deployed.3)To address the interference problem among 5G micro-base stations in rural areas,an interference coordination method based on low-power blank subframes is proposed for system throughput optimization,and low-power blank subframes are set to ensure the service quality of base station users,which ensures the service demand of each user;by performing power control on the blank subframes and using Q-learning method to find the optimal power value,the inter-micro-base stations are reduced.The simulation compares the other two traditional interference coordination methods and proves that the interference coordination method based on low-power blank subframes does help to improve the network system throughput.