Patent ID: 8346283

Claim:
A method for measuring a position by a serving base station, the method comprising: allocating a first ranging code and a first ranging region for a mobile station; receiving a second ranging code and allocation information on a second ranging region of the mobile station from a neighboring base station; transmitting first ranging information including the first ranging code to the mobile station; transmitting an uplink MAP (UL-MAP) including allocation information of a first ranging region and a dedicated ranging indicator to the mobile station; receiving the first ranging code from the mobile station in the first ranging region when the mobile station checks whether the dedicated ranging indicator is enabled and then determines that the dedicated ranging indicator is enabled; calculating a received timing adjustment value of the first ranging code; transmitting second ranging information including the second ranging code to the mobile station: receiving a received timing adjustment value of the second ranging code from the neighboring base station; and measuring the position of the mobile station according to the received timing adjustment value of the first ranging code and the received timing adjustment value of the second ranging code without using a timing advance value, wherein the step of receiving the second ranging code and the allocation information on the second ranging region includes: transmitting a dedicated ranging allocation request on the mobile station to the neighboring base station to allocate a dedicated ranging region not usable by other mobile stations; and receiving a response signal including the second ranging code on the mobile station.