Patent Document ID: 9295009
Application ID: 13993429
Patent Flag: 1

Claim One:
1. A method in a radio base station connected to a radio network controller for performing thermal noise power floor estimation in a radio communications network, the radio base station communicating with a plurality of mobile devices in the radio communications network, the method comprising: computing, by a processor of the radio base station, table entries for a table for an evaluation of a transcendental function, which table has a range of table entries defined by a smallest table entry, a largest table entry, and a number of table entries; estimating, by the processor of the radio base station, a thermal noise power floor by performing the evaluation of the transcendental function in computing a product representing a cumulative probability function, which cumulative probability function is related to the thermal noise power floor, wherein the evaluation of the transcendental function is performed by using table look ups of the table with the computed table entries; and dynamically re-computing, by the processor of the radio base station, the table entries for the table when a value of at least one parameter in the transcendental function is modified.