H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 24/08 (2009.01) H01Q 1/24 (2006.01) H01Q 3/26 (2006.01)
Patent
CA 2346903
An efficient, high-quality interference analysis taking into consideration characteristics of adaptive antennas is made possible by a frequency planning device and, respectively, a method for interference analysis for a mobile radio network exhibiting an adaptive antenna in at least some of its cells having traffic channels and control channels in which for the mobile radio network frequency allocation planning, in each case the interference ratio of the interference of the traffic channels of an adaptive antenna of a first cell with traffic channels of an adaptive antenna of a second cell is calculated as a sum of the interference probabilities weighted with the traffic values of the individual part-cells, of the interferences of in each case one traffic channel of the adaptive antenna of the first cell with a user signal of in each case one traffic channel of the adaptive antenna of the second cell. The interference ratio of the interference of a traffic channel of a first cell without adaptive antenna with traffic channels of a second cell with an adaptive antenna is calculated as the sum of the interference probabilities, weighted with the traffic values of the individual part cells, of the interferences of a traffic channel of the first cell with in each case one traffic channel of the adaptive antenna of the second cell. The interference ratio of the interference of a control channel of a first cell with or without adaptive antenna with a control channel of a second cell with or without adaptive antenna referred to the total cell area is calculated from the user signal/interference signal ratio of these control channels in the total cell area in each case without taking into consideration any adaptive antennas of one or both of these cells.
L'invention concerne un procédé permettant d'analyser le brouillage pour un réseau radiotéléphonique mobile à canaux de trafic et à canaux de commande, présentant une antenne adaptative dans au moins certaines de ses cellules (fig.4 BSi). Selon l'invention, (fig.6) le rapport de brouillage (C/I ou I?ij?) du brouillage (I) d'un canal de trafic d'une antenne adaptative d'une première cellule (BSj) est calculé sur des canaux de trafic d'une antenne adaptative d'une seconde cellule (BSi). Selon l'invention, (fig.5) le rapport de brouillage (I?ij?) du brouillage d'un canal de trafic d'une première cellule (BS?j?) sans antenne adaptative est calculé sur un canal de trafic d'une seconde cellule (BSi) ayant une antenne adaptative. Selon l'invention, (fig.7) le rapport de brouillage du brouillage d'un canal de commande d'une première cellule (BSi) muni ou non d'une antenne adaptative, est calculé, par rapport à la surface globale de la cellule, sur un canal de commande d'une seconde cellule (BSj) muni ou non d'une antenne adaptative, sur la base du rapport du signal utile au signal perturbateur ((I?j?,i)_tb) de ces canaux de commande dans chacune des surfaces globales des cellules, sans tenir compte d'éventuelles antennes adaptatives d'une de ces cellules ou des deux (BSj, BSi).
Fetherstonhaugh & Co.
Mannesmann Ag
LandOfFree
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