Detecting interference in a wireless communication system

摘要

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, comprising:
(i) gathering values RXLEV_UL and RXLEV_DL;
(ii) using said values to estimate the receiver power level in the base station;
(iii) statistical analysis of the two different estimations obtained ( P RXLEY UL i and P UL i €¾ ) for every connection i in the radio link;
(iv) comparing the estimations ( P RXLEY UL i and P UL i €¾ ) of the uplink received signals strenght with the quality parameters RXQUAL_UL and RXQUAL_DL;
(v) computing the behaviour of the computed values p s i and R snri ,
(vi) analyzing the results to detect:
(a) steady-state abnormalities;
(b) unbalanced interferences;
(c) malfunctioning of the power control; and
(d) inadequate radio planning.