Design Of The Indoor Distribution System Based On CDMA+WALN

Along with the quantity of cellphone increase, the diversification in service, as wellas the change of radio wave propagation condition caused by the urban construction, weneed to carry on the optimization to the network incessancy. The coverage problem isone of the key of the network optimization. The indoor distribution system is animportant solution to the problem of the wireless network coverage. How to build ahigh-quality indoor distribution system to maximize the system’s cost performance isworth attention.According to the requirements of the indoor coverage project, this thesis proposed ascheme of Indoor distribution system base on integration of CDMA and WLAN, furtherresearch on the scheme and the multi-system sharing on the indoor distribution systemare provided．The primary contributions are as follows：①Based on the research and analysis of the project, this thesis designs the indoordistribution system in a new ways that is the integration of CDMA and WLAN andsharing the antenna and cable systems. So that it can save the cost of redundantconstruction and improve the indoor distribution system’s cost performance. In view ofproblems of differentiation of indoor coverage among operators, this thesis proposes anew design idea that is ‘additional reserved interface’.According to differentrequirements, it can utilize it to flexibly, efficaciously expand coverage and increase thedensity of antenna. It in favor of the multi-system’s sharing in future.②The feasibility and construction cost of this scheme is examined bysimulations.Through the introduction of other standard signaling system (take WCDMas example), it carries on the simulation design and the simulation predictive parsing tothe original design proposal. The simulation results show that the new design idea inthis scheme provides effective solutions to the problem of covering differentiation,reduce the construction difficulty and cost of multi-system sharing, also in favor of themulti-system’s sharing among the operators in future.③The new models base on the combination design of2G/3G and WLAN in indoordistribution system are discussed, take several kind of typical scene projects as theexample, in combination with other construction methods for comparative analysis,gives the corresponding suggestions on construction; Several issues of multi-networkshare in indoor distribution system construction are discussed; proposes the With an example of an office block’s CDMA+WLAN indoor distribution systemsolution, this paper discusses indoor coverage solution through theoretical research andengineering practice. This paper provides the reference and recommendation for theplanning and construction of indoor distribution system in multi-network share.