Method for positioning a mobile station

A radio network of a mobile telecommunication system, comprising:

• fixed transmitting stations which are configured for positioning a target mobile station by transmitting a location signal from each fixed transmitting station to said target mobile station and receiving a response to said location signal from said target mobile station by said fixed transmitting stations,
• at least one relay station which is configured to receive said location signal from the corresponding fixed transmitting station and said response from said target mobile station, and to forward said signals to said target mobile station and said fixed transmitting station, respectively, in case a direct transmission from and to at least one of said fixed transmitting stations is not available, and
• location means for determining a position of the at least one relay station and determination means for determining a distance between said target mobile station and the fixed transmitting stations and/or the at least one relay station on a basis of said location signal, and
• wherein the location means is configured to locate the position of said target mobile station on a basis of the determined distances,
• said at least one relay station is a movable mobile station, and
• said determination means calculates said distance D between said at least one relay station and said target mobile station based on the following equation
• D=cΔt βdmax,
• wherein c is the light velocity, Δt is a propagation delay of the location signal, β is in a range from −1 to +1, and dmax is a maximum distance by which the at least one relay station can move during Δt.