Patent ID: 10149183

Abstract:
A mobile communication device that is used in a heterogeneous network and is in a standby state has low reliability in measurement data obtained by MDT (Minimization Drive Tests) measurement. A base station includes at least one of ABS (Almost Blank Subframe) information and nonABS information in broadcast information (System Information Block), sets a subframe pattern used for the MDT (Minimization Drive Tests) measurement in at least one of the ABS information and the nonABS information, includes the subframe pattern used for the measurement in the broadcast information, and transmits the broadcast information. The mobile communication device receives the broadcast information including at least one of the ABS information and the nonABS information, detects, in a standby state, a subframe pattern used for the MDT measurement from the broadcast information, detects a subframe pattern used for the measurement, performs measurement, stores a result of the measurement as measurement data, and transmits the measurement data.