Patent ID: 7194275

Claim:
Method for position determination of a mobile station in a mobile communications network, comprising the steps of: transmitting control signals in the mobile communications network, the control signals comprising base station identification data, at least one of the control signals comprising virtual base station identification data; the mobile station being unable to connect to the mobile communications network using a virtual cell associated with the virtual base station identification data; the base station identification data being associated with a transmission location of the control signal comprising the base station identification data; receiving transmitted control signals in the mobile station, wherein base station identification data and characteristics of the control signals are provided for inclusion in a neighbor list for the mobile station; determining an estimation of a position of the mobile station based on characteristics of the received control signals and the base station identification data based on the transmission location associated with the virtual base station identification data being included in the neighbor list for the mobile station; and reducing a probability of the mobile station attempting to connect to the mobile communications network using the virtual cell associated with the virtual base station identification data included in the neighbor list.