| With the continuous advancement of society and the rapid development of the communications industry,people cannot communicate without mobile phones.Whether in work or life,people rely more and more on mobile phones.The popularity of smart phones has brought more users,and people’s demand for wireless networks is also increasing.How to improve the deployment and rational optimization of wireless networks has become very important.Therefore,the study of 4G(Long Term Evolution,LTE)wireless network coverage and optimization strategies in residential communities is an important part of current 4G network research,and it is also an urgent task for operators to ensure that they provide users with better services.This article introduces the LTE network architecture and key technologies: link adaptation technology,cell interference control technology,self-organizing network SON technology,multiple input multiple output(MIMO)technology,orthogonal frequency division multiplexing(Orthogonal Frequency)Division Multiplexing,OFDM)technology.(1)This article proposes the LTE link budget of the residential cell based on the Cost-231 Hata model in the LTE propagation model,and obtains the LTE link budget table of the residential cell through the uplink and downlink budget formula.(2)Based on the Cost-231 Hata model,this article plans and deploys the residential LTE network,and proposes four residential residential LTE network construction plans: multiple high-rise tower residential quarter construction plans,multiple low-rise residential quarter construction plans,and mixed high and low floors Residential area construction plan and urban village construction plan.(3)Adopt two methods of model optimization and engineering optimization to improve the quality of LTE network in residential areas.Model optimization adopts the following three methods: double sampling method,regression analysis method and least square method.Engineering optimization is divided into the following five aspects: single-site verification,mode three interference area optimization,cross-area coverage optimization,neighboring cell optimization and PAPB parameter optimization.After planning and deployment of the LTE wireless network in the residential area,the quality of the residential LTE wireless network has been significantly improved,the Internet speed has been improved,and a better user experience has been achieved to meet user needs. |
