Method and system of analyzing a plurality of cells in a cellular telecommunication network

A method of analyzing a plurality of cells of a cellular telecommunication network, the plurality of cells providing telecommunication services to a service area and being set with one or more cell configuration parameters enabling a cell rating for mobile stations in the service area, the rate of a cell reflecting an attractiveness of said cell for the mobile stations, the method comprising:

• selecting a cell among the plurality of cells;
• changing at least one cell configuration parameter of at least one of the plurality of cells during a first intervention period in order to make the selected cell the least rated cell for the mobile stations in the service area;
• monitoring traffic events communicated using the selected cell during the first intervention period;
• monitoring traffic events communicated using the plurality of cells during the first intervention period so as to determine a total amount of traffic events communicated using the plurality of cells during the first intervention period;
• determining a required effective radio coverage contribution of said selected cell as a ratio between the amount of traffic events communicated using the selected cell and the total amount of traffic events communicated using the plurality of cells during the first intervention period;
• changing at least one cell configuration parameter of at least one of the plurality of cells during a second intervention period in order to make the selected cell the most rated cells for the mobile stations in the service area;
• monitoring traffic events communicated using the selected cell during the second intervention period:
• monitoring traffic events communicated using the plurality of cells during the second intervention period so as to determine a total amount of traffic events communicated using the plurality of cells during the second intervention period;
• determining an effective radio coverage contribution of said selected cell as a ratio between the amount of traffic events communicated using the selected cell and the total amount of traffic events communicated using the plurality of cells during the second intervention period;
• and
• estimating an overlap between the selected cell and the other cells of the plurality of cells based on the required effective radio coverage contribution and the effective radio coverage contribution of the selected cell.

A system for obtaining information on radio coverage contribution of a selected cell among a plurality of cells of a cellular telecommunication network, the plurality of cells providing telecommunication services to a service area and being set with one or more cell configuration parameters enabling a cell rating for mobile stations in the service area, the rate of a cell reflecting an attractiveness of said cell for the mobile stations, said system comprising:

• a cell configuration manager configured to change at least one cell configuration parameters of at least one of the plurality of cells during an intervention period in order to affect a rate of the selected cell in the cell rating for the mobile stations in the service area;
• a network performance monitor configured to monitor traffic events communicated using the selected cell during the intervention period and to monitor traffic events communicated using the plurality of cells during the intervention period, wherein the monitored traffic events are associated with mobile station identities;
• and
• a computing platform configured to determine the radio coverage contribution information based on an amount of traffic events communicated using the selected cell and a total amount of traffic events communicated using the plurality of cells during the intervention, wherein said radio coverage contribution information is obtained by correlating the monitored traffic events associated with the different mobile station identities and the change of parameters,
• wherein the computing platform is configured to determine the radio coverage contribution information as a ratio between the amount of traffic events communicated using the selected cell and the total amount of traffic events communicated using the plurality of cells of the service area.

A cellular telecommunication network comprising a plurality of cells, the plurality of cells providing telecommunication services to a service area and being set with one or more cell configuration parameters enabling a cell rating for mobile stations in the service area, the rate of a cell reflecting an attractiveness of said cell for the mobile stations, the cellular telecommunication network being configured to implement a method of analyzing a plurality of said cells, the method comprising:

• selecting at least one cell among the plurality of cells;
• changing at least one cell configuration parameter of at least one of the plurality of cells during a first intervention period in order to make the selected cell the least rated cell for the mobile stations in the service area;
• monitoring traffic events communicated using the selected cell during the first intervention period;
• monitoring traffic events communicated using the plurality of cells during the first intervention period so as to determine a total amount of traffic events communicated using the plurality of cells during the first intervention period;
• determining a required effective radio coverage contribution of said selected cell as a ratio between the amount of traffic events communicated using the selected cell and the total amount of traffic events communicated using the plurality of cells during the first intervention period;
• changing at least one cell configuration parameter of at least one of the plurality of cells during a second intervention period in order to make the selected cell the most rated cell for the mobile stations in the service area;
• monitoring traffic events communicated using the selected cell during the second intervention period:
• monitoring traffic events communicated using the plurality of cells during the second intervention period so as to determine a total amount of traffic events communicated using the plurality of cells during the second intervention period;
• determining an effective radio coverage contribution of said selected cell as a ratio between the amount of traffic events communicated using the selected cell and the total amount of traffic events communicated using the plurality of cells during the second intervention period;
• and
• estimating an overlap between the selected cell and the other cells of the plurality of cells based on the required effective radio coverage contribution and the effective radio coverage contribution of the selected cell.