| 摘要 |
A computer system determines and stores antenna probabilities for defined sub-areas (41, 43) of a geographical area (4), e.g. for squares arranged in a grid (40), based on field strengths expected in the small sub-areas (41, 43) from the antennas (A1, A2 A3, A4). The antenna probabilities indicate for the antennas (A1, A2 A3, A4) of a mobile radio network the probability that a mobile communication terminal uses a respective antenna (A1, A2 A3, A4) when located in a particular sub-area (41, 43). The computer system determines the current location of the mobile communication terminal based on the antenna probabilities associated with the antenna used by the mobile communication terminal. The antenna probabilities make it possible to locate the mobile communication terminal in the geographical area (4) in a location area much smaller than the area each antenna covers physically, but without the need for measuring at the mobile communication terminal signal properties such as signal strength or observed time differences.
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