| 摘要 |
A base station apparatus, a mobile station apparatus and a mobile communication system are provided to receive and transmit data by implementing power-on/off control of a receiver and a transmitter as needed. A base station apparatuses(200) perform call-control operations and wireless-control operations. The base station apparatuses also have an RRC(Radio Resource Control) function. The base station apparatuses include S1-AP and X2-AP. An MME/S-GWs(300) terminate NAS (Non-Access Stratum) signaling security, and manages mobile station apparatuses in the idle mode and an SAE(System Architecture Evolution) bearer resources. A mobile communication system uses, as wireless access schemes, OFDM for the downlink and SC-FDMA for the uplink. OFDM is a scheme in which a frequency range is divided into multiple narrow frequency bands and data are transmitted in each frequency band. SC-FDMA is a transmission scheme capable of reducing interference between terminals by dividing a frequency range and having multiple terminals transmit in different frequency bands. |
