METHODS AND ARRANGEMENTS FOR ESTIMATING SIGNAL STRENGTH IN A SUB-REGION

摘要

A method and an arrangement in a network node (110, 130, 150) for estimating signal strength in at least one sub-region (211, 212, 221, 222) of a radio transmitter, located at a radio transmitter location are provided. Each of said at least one sub-region (211, 212, 221, 222) is identified by corresponding sub-region coordinate information. In a step, the network node obtains from a database corresponding model settings information, indicative of radio propagation conditions within one of a plurality of model settings regions (210, 220). The corresponding model settings information is dependent on the model settings region (210, 220). In another step, the network node estimates a corresponding signal strength value based on the radio transmitter iocation, the corresponding sub-region coordinate information and the mode! settings information.