Patent ID: 8260210
Filing Date: 2012-09-04
Classification: H04B

Abstract:
1. A method to determine the existence of interferences in a wireless communication link based on comparing the power received at both links of radio channel and the propagation losses calculated from both power and quality measurements, the method comprising the following steps: (i) a first step of gathering, for each established connection, the values RXLEV_UL and RXLEV_DL; (ii) a second step of using independently the values RXLEV_UL and RXLEV_DL to estimate the receiver power level in the base station and, therefore, obtaining two different estimations for the uplink received power per user, wherein said two different estimations are denoted as: P {tilde over (P)} (iii) a third step of statistical analysis of the two different estimations obtained in the second step (P (iv) a fourth step of comparing the estimations (P (v) a fifth step of computing the behaviour of the values p p R (vi) a sixth step of analyzing the results of the fifth step configured to detect, at least, the following points: (a) steady-state abnormalities if the power versus quality points gather around a point with a high standard deviation, or a point with different qualities; (b) unbalanced interferences, wherein the distributions of the points in the high standard deviation versus R (c) malfunctioning of the power control: a large concentration of points out of the line R (d) inadequate radio planning: a recurrent unbalanced and time variant interference caused by other radio links within the same system.