Patent ID: 7912461

Claim:
A method for estimating powers in a cellular communications system, comprising the steps of: measuring instantaneous values of a number, m+1, of signal powers at a plurality of time instances, where m>1; and, determining an estimate of said powers based on said measured instantaneous values of signal powers; wherein said determining step comprises a repetition of a processing step, utilizing n+1 state variables representing said powers to be estimated, where n>1; wherein said n+1 state variables are dependent on said measured instantaneous values of signal powers as well as on a first interdependency matrix of dimension (n+1)×(m+1) relating to said n+1 state variables and to estimation errors between said measured instantaneous values of signal powers and said estimated powers; wherein said processing step comprises the step of creating a zero pattern in said first interdependency matrix used in said processing step, in turn comprising the step of setting interdependencies between a state variable and an estimation error related to two different channels, both fulfilling a first criterion, to zero; and, wherein said first criterion is based on available bit rate for said channel.