Patent ID: 8270987

Claim:
A method of controlling operation of at least one radio base station in a mobile radio network, comprising the steps of: connecting with said radio base station a set of remote base station radio units via a digital connection carrying signals in data flows, each of said remote base station radio units being adapted to provide radio cell coverage by means of a set of communication channels and being equipped with a respective set of antenna elements, whereby said communication channels are distributed over said antenna elements according to an assignment scheme; arranging the signals passing through said remote base station radio units in frames, said remote base station radio units performing a numeric processing of said frames; and dynamically varying said assignment scheme by dynamically varying the arrangement of said signals in said frames, and wherein the radio base station is connected to said set of remote base station radio units via an optical digital connection and wherein said optical digital connection comprises at least one first optical fiber channel and at least one second optical fiber channel for propagating said uplink and downlink signal flows related to each remote base station radio unit in said set of remote base station radio units over said at least one first optical fiber channel and at least one second optical fiber channel, respectively.