H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2303139
The invention concerns a device for pro-active estimation of interference signal ratio in a cellular radiocommunication network terminal using in transmission primary frequencies and secondary frequencies whereof the re-use rate is higher than that of the primary frequencies. The device knows the level received by said terminal of a station line cell (A1) to which it is connected, it is also provided with the levels received (LB2, LC3, LD2, LE1, LG2, LF1) by said terminal from neighbouring cells (B2, C3, D2, E1, G2, F1), it selects a reference cell (B2) among the station line cell and the neighbouring cells, it produces a potential noise by summing (N1) the received levels (LD2, LG2) of the cells (D2,G2) using the same secondary frequencies as the reference cell (B2), it feeds this estimation into the reference cell (B2) by dividing the level received from said reference cell by the potential noise.
L'invention concerne un dispositif d'estimation prévisionnelle du rapport signal à interférences d'un terminal dans un réseau cellulaire de radiocommunications qui utilise en émission des fréquences primaires et des fréquences secondaires dont le taux de réutilisation est plus élevé que celui des fréquences primaires. Le dispositif connaît le niveau reçu par ce terminal d'une cellule de rattachement (A1) à laquelle il est connecté, il dispose également des niveau reçus (LB2, LC3, LD2, LE1, LG2, LF1) par ce terminal de cellules voisines (B2, C3, D2, E1, G2, F1), il sélectionne une cellule de référence (B2) parmi la cellule de rattachement et les cellules voisines, il produit un bruit potentiel en faisant la somme (N1) des niveaux reçus (LD2, LG2) des cellules (D2, G2) utilisant les mêmes fréquences secondaires que la cellule de référence (B2), il fournit cette estimation dans la cellule de référence (B2) en divisant le niveau reçu de cette cellule de référence par le bruit potentiel.
Nortel Matra Cellular
Robic
LandOfFree
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