Patent ID: 8625535

Claim:
A radio transmitting/receiving apparatus comprising: a reception unit which receives, from a macro cell base station, an instruction for handover to a femto cell contained in a macro cell and which receives, from a femto cell base station, a pilot channel signal for reception quality measurement at the femto cell and a synchronization channel signal for synchronization; a storage unit which stores a list indicative of an accessible femto cell among femto cells contained in the macro cell; a determination unit which determines whether or not a femto cell of handover destination is accessible based on a physical cell ID of the femto cell acquired from the received synchronization channel and the list; a measurement report creating unit which adds a physical cell ID and a unique cell ID to a measurement report indicative of a result of reception quality measurements taken by means of the pilot channel signal, the physical cell ID being acquired from the synchronization channel and being indicative of a femto cell from which a signal is being received and the unique cell ID being for uniquely identifying a femto cell contained in the macro cell and being indicative of the femto cell of handover destination determined to he accessible; and a transmission unit which transmits the measurement report to the macro cell base station, wherein: the reception unit can receive, from the macro cell base station, system information including a network policy relating to a handover from a macro cell to a femto cell or a measurement control message including the network policy, the determination unit has a function for examining a network policy of the macro cell base station, and the measurement report creating unit creates the measurement report depending on the network policy of the macro cell base station, the storage unit stores a physical cell ID and a location information of a previously accessed femto cell base station, the determination unit determines, if it is determined that a network policy of the macro cell base station does not support a reliable handover and is of aggressive one that performs a handover regardless of presence or absence of an access permission, whether or not a femto cell of handover destination is accessible based on a physical cell ID of the femto cell acquired from the current synchronization channel and current location information as well as the physical cell ID and the location information stored in the storage unit, and the measurement report creating unit adds to the measurement report, if it is determined that the femto cell of handover destination is accessible, the physical cell ID and a unique cell ID of the femto cell determined to be accessible.