Location areas planning

摘要

From specific data specifying nature of geographic zone for position of each cell (1-8), an estimate is made of average terminal density in considered cell (1-8). After first estimate an average terminal (21) displacement speed inversely proportional to density, is estimated. Then inter cell flow for each part of adjoining side (56-59) of considered cell (1) is calculated for varying intensity, like average estimated speed, density and length of adjoining sides (56-59). Method for determining topology of an existing or provisional cellular radiotelephony network having a number of defined clusters (31,32) for base stations (11-18) for managing respective cells (1-8) with set sizes and positions and having various adjoining side sections of set length which are designed to manage the radio traffic for a set number of mobile terminals (21). The stations (11-18) of each cluster are connected to a cluster controller (33,34) connected to other cluster controllers (34,33) so as to manage the movement of mobile terminals (21): (a) terminal (21) displacement determining their spread in various cells (1-8), is modeled in the form of a law determining the random movement of a perfect gas particles; the flow intensity values (42-45) by mobile units (21) crossing parts of adjoining edges (56-59) is calculated, and; a cut is made between cells (1-4) to delimit optimal clusters (31,32) by following closed contours (311-321) of cuts corresponding to a minimal value of the total cut flow intensity (42-45) by the various contours (311-321).