Research Of LTE Network Optimization Technology

With the progress of society, the rapid development of the information industry, mobile data services is changing people’s lives. Convenient shortcut experience of while, also in test with mobile operators, wireless network hosted business flow surge, occupied of bandwidth significantly increased, for meet "big data" times user of flow needs, operators to advance has 4G broadband wireless communications technology of development, vigorously construction Long Term Evolution(hereinafter referred to asLTE)network, especially and existing 2G, and 3G and the WLAN network system coexistence environment, wireless environment of complexity prompted LTE network optimization work is is important. Work in this context to start LTE radio network optimization, this paper relies on a mobile operators ’ LTE network testing and network optimization projects. First,in-depth understanding of the definition and principles of LTE, based on focuses on key technology and optimization method and application of optimization tools. Second,in-depth analysis network cover on LTE performance of effect, especially LTE network system overlap cover this a dimension degrees index on performance of serious effect, paper in the also described has RSRP and SINR two items network assessment index, focus selected has two a overlap cover caused of case, through test tool fast filter out overlap cover problem regional, and combined site reality for analysis, find overlap cover problem of reasons, using method for solution. Third,In-depth analysis of effect on the performance of LTE network coverage, especially the LTE system overlapping coverage index on the performance of this dimension, this paper also expounds the RSRP and SINR two network evaluation indexes, key selected case caused by the two overlapping coverage, covered by rapid screening test tools overlap problem areas, and combining the actual situation analysis, find out the causation of overlapping coverage problem, using the method of four quadrant analysis for path optimization. Finally,by analysis of LTE networks overlapping and interference problems and formulate corresponding measures to improve, supporting LTE networks of overlapping and interference, to later problems in identifying and resolving, improving network efficiency and quality improvement a positive effect for the network.