Title Frequency Assignment Arithmetic Design in Mobile
Telecommunication System
Abstract
Because the number of wireless customers is increasing rapidly, frequency programming becomes a great hard nut to the mobile network. By analyzing the current mobile communication system, a frequency assignment arithmetic has been designed, which is applicable to small or medium scaled system. After layout the distribution of cells of mobile system, we obtain the electro magnetic compatibility relationship of cell channels; by using a method called dynamic state of minimum coefficient behind, we analyze and calculate the electro magnetic compatibility of frequency to get the difficulty coefficient of each channel. Then according to the principle of "first difficult, latter easy", the frequency is distributed to each channel. Among them, concrete design project of frequency allotment has been analyzed, and the limitation that the electro magnetic compatibility brings to both the same frequency interference and the adjacent frequency interference. Arithmetic adopts C++ to programme and debug, which realize fix frequency allotment for 12 small cells. Through the analysis, it tells us that the way of this arithmetic is in focus, and it could accomplish the overall situation optimization of other small or medium scaled system.
Key Words frequency assignment electro magnetic compatibility the same frequency interference the adjacent frequency interference
