The Research On Deep Coverage Technology And Its Application Of Tai'an 4G Network

Since 2013,China Mobile has launched a large-scale TDD-LTE based 4G network construction.It has completed the 4 phase of LTE network coverage project,basically realized the continuous coverage of all large,medium and small cities,towns and densely populated villages throughout the country.But has a huge market potential of the city residential area,large supermarkets,supermarkets and other underground coverage is often because the building block,the indoor signal shielding problems of weak signal coverage problems in remote rural areas,because far from the base station,the signal coverage intensity is weak,unable to achieve effective coverage of signal.The coverage effect of existing wide coverage technology means can not effectively meet the development strategy of Mobile Corporation next traffic operation,and can not effectively support the requirements of VOLTE calls.Effective coverage of 4G network in weak coverage area is imminent.4G signal in depth coverage mainly uses the LTE key technology in MIMO.Beamforming and other key technology can effectively enhance the depth of coverage,and based on the heterogeneous network the need for supplementary coverage of small area with micro and pico base station equipment to supplement the coverage,change the status quo of the coaxial cable distribution system based on.The thesis first studies the practical significance of the project of 4G network depth coverage and the status of the research at home and abroad,and gives an account of the content arrangement of this thesis.Summarizes the difficulties of 4G implementation scheme of the depth of coverage and depth of coverage in facing network construction,key technologies and equipment at the same time,the depth of coverage 4G network is briefly introduced,and combined with the actual post network maintenance problems encountered in the work of 4G network depth coverage recommendations.Then the author according to the needs of work and work experience,work on the existing 4G network coverage depth was studied,according to the actual situation of current LTE coverage research status and engineering practice summarizes the design and implementation of 4G wireless network coverage under the common scene depth,and combined with the practical work,the innovation proposed fast implementation of 4G network covered with waste WLAN resources,greatly enhance the construction speed,save the cost of network construction.Finally,combined with the actual problems of Tai'an mobile is currently facing in the depth of coverage in the work,proposes the special scene in 4G depth of coverage,the study used in the project practice of new coverage technology and covering ideas,using xTxR technology to complete high-speed rail scenarios long distance coverage;guidance on the different network structure,the integrated use of a variety of technology the dog show 4G signal Tai'an branch field coverage.It also summarizes the related matters of attention to the depth coverage of 4G network in special scenes.