Patent ID: 7324821

Claim:
A method of determining a target noise rise over thermal noise (ROT) for a target cell in a radio network controller (RNC) in a CDMA (Code Division Multiple Access) mobile communication system where ROTs in cells measured by each of a plurality of Node Bs within a coverage area of the RNC are maintained equal to or less than target ROTs for the cells, the method comprising the steps of: receiving at the RNC a measurement ROT for the target cell from a Node B that controls the target cell; receiving at the RNC at least one measurement ROT for at least one neighboring cell from each of the Node Bs that controls the neighboring cell; adjusting the target ROT for the target cell at the RNC according to a relation between the measurement ROT for the target cell, the target ROT for the target cell and the at least one measurement ROT for the at least one neighboring cell; and transmitting the adjusted target ROT from the RNC to the Node B.