Patent ID: 8489031

Claim:
A method for detection and reducing interference in cell sites of a wireless communications network, the method comprising: selecting a cell site from cell sites of a wireless communications network, the cell site being a region in which wireless communications are provided to mobile devices; receiving signal code power measurements from the mobile devices in the cell site; determining sources of signals being transmitted to the mobile devices in the cell site based on the signal code power measurements; generating a list of sources providing signals to the mobile devices in the cell site; modifying the list of sources by removing sources included in an active set for each mobile device thereby creating a list of interfering sources, the active set being a set of sources assigned to provide source signals to a mobile device in the cell site; summing the signal code power measurements for the sources on the list of interfering sources; ranking the summed signal code power measurements for the sources on the list of interfering sources from highest to lowest; generating a list of interfering transmitters and corresponding antennas associated with the ranked signal code power measurements for the interfering sources; repeating the selecting, the receiving, the determining, the generating of the list of sources, the modifying, the summing, the ranking, and the generating of the list of interfering transmitters for each of the cell sites of the wireless communications network; selecting an interfering transmitter from the generated list of interfering transmitters for the cell sites of the wireless communications network and determining a critical zone with respect to the selected interfering transmitter selected; and altering parameters of the interfering transmitter and a corresponding antenna, and monitoring performance of the wireless network in the critical zone and interference by signals being transmitted to the cell site from the interfering transmitter, wherein the altering of the parameters of the interfering transmitter and the corresponding antenna is performed continuously until a desired interference reduction is achieved in the cell site of the wireless communications network.