PHS Wireless Network Planning And Optimization Of Indoor Distribution System

The number of national PHS customer nears to 100,000,000 at the end of 2005 years, but with customer quantity surging mutually self-contradict is customer throwing telling deals increases, it is problem to aim at the indoors signal not good that among them big part hurl tell. This primarily is because present stage of PHS lead-in network only contain outdoors overlay, at the same time the network of PHS work on frequency of 1900 MHz, its spreading shoot, reflecting exhausting and wearing deeply exhausting all very bigly, and the power of PHS phone is 10 mW, compare the cellular phone of GSML CDMA to all want to be small a lot of, usually more easy in the room formation every kind of signal overlays the blind area. Although the telecom company has adopted the certain measure, for example increasing the quantity of 500 mW cell in the building surround -ings, it still can hardly to attain the good indoors overlays the result.Aimed at the lesson of the layout and optimization of PHS lead-in network indoors distribute system , this text proceed and investigate below a few:1. draw lessons from the net of G to overlay the mature project of the system with the network of C indoors, the research makes use of the indoors keep putting the machine, tiny cell, have source, have no the source, fiber-optic cloth line system line provide the small quick to overlay the trial on frequency of 1900 MHz a last indoors.2. aim at the PHS lead-in network indoors distribute the top appeared in system developments, bottom unbalanced etc. phenomenon of a network, put forward the excellent turning the solution.This text was further to inquiry into at the same time the future indoors overlays the development direction of the system, studying the PHS+ WCDMA+ WLAN three nets are in the room to distribute the system last integrated of possibility, with excellent turn to invest the construction, attain the performance maximize.