Abstract: A mobile communication method according to the present invention includes the steps of: (A) notifying, from a first radio base station (MBS) to a second radio base station (FBS), scheduling information including information specifying a radio resource for a control channel through which a first mobile station (MUE) that is in communication in a first cell under the control of the first radio base station (MBS) transmits downlink control information or uplink control information, when the first radio base station (MBS) assigns the radio resource; and (B) assigning, at the second radio base station (FBS), a radio resource for a control channel through which a second mobile station that is in communication in a second cell under the control of the second radio base station (FBS) transmits downlink control information or uplink control information based on the scheduling information.

Abstract: A mobile communication method according to the present invention includes a step of: (A) transmitting, from a macro radio base station (MBS) to a femto radio base station (FBS), scheduling information notifying a radio resource assigned for transmitting a predetermined signal in a first cell under the control of the macro radio base station (MBS), a radio resource that can be used in a second cell under the control of the femto radio base station (FBS), or a radio resource that cannot be used in the second cell under the control of the femto radio base station (FBS).

Abstract: A mobile communication method according to the present invention includes the steps of: (A) notifying, from a first radio base station (MBS) to a second radio base station (FBS), scheduling information including information specifying a radio resource for a control channel through which a first mobile station (MUE) that is in communication in a first cell under the control of the first radio base station (MBS) transmits downlink control information or uplink control information, when the first radio base station (MBS) assigns the radio resource; and (B) assigning, at the second radio base station (FBS), a radio resource for a control channel through which a second mobile station that is in communication in a second cell under the control of the second radio base station (FBS) transmits downlink control information or uplink control information based on the scheduling information.

Abstract: A mobile communication method according to the present invention includes: a step (A) of adjusting, at a second radio base station (FBS), a timing of transmitting a downlink signal in a second cell under the control of the second radio base station (FBS), based on an measurement result of a timing of receiving a downlink signal from a first cell under the control of a first radio base station (MSB).

Abstract: An adaptation apparatus for adapting an input signal, the input signal being digital in the frequency domain and having a peak-to-average-power-ratio in the time domain. The adaptation apparatus has an evaluation unit for evaluating the input signal and for providing an evaluation signal based on an optimization criterion. The adaptation apparatus further has a summing unit for adding the evaluation signal to the input signal in the frequency domain and for providing an output signal in the frequency domain having a lower peak-to-average-power-ratio in the time domain than the signal in the time domain.

Abstract: A radio communication system includes: a first acquisition unit configured to acquire future prediction information on each of the plurality of lower nodes; a second acquisition unit configured to acquire latest prediction information on a communication starting station that is a lower node starting the radio communications among the plurality of lower nodes; a third acquisition unit configured to acquire channel use information on each of the plurality of lower nodes; a calculation unit configured to calculate a radio channel use probability for each of the plurality of radio channels on the basis of both the future prediction information acquired by the first acquisition unit and the channel use information acquired by the third acquisition unit; and a determination unit configured to determine one radio channel among the plurality of radio channels on the basis of the radio channel use probabilities calculated by the calculation unit, the one radio channel being to be assigned to the communication starting

Abstract: The subcarriers in an OFDM communication system or OFDM-based multicarrier communication system are multiplied with weighting factors, determined so that in accordance with an optimization criterion the side lobes are minimized in a determined frequency domain. In determining the weighting factors constraints can be taken into account to further boost system power output.

Abstract: An adaptation apparatus for adapting an input signal, the input signal being digital in the frequency domain and having a peak-to-average-power-ratio in the time domain. The adaptation apparatus has an evaluation unit for evaluating the input signal and for providing an evaluation signal based on an optimization criterion. The adaptation apparatus further has a summing unit for adding the evaluation signal to the input signal in the frequency domain and for providing an output signal in the frequency domain having a lower peak-to-average-power-ratio in the time domain than the signal in the time domain.

Abstract: The subcarriers in an OFDM communication system or OFDM-based multicarrier communication system are multiplied with weighting factors, determined so that in accordance with an optimization criterion the side lobes are minimized in a determined frequency domain. In determining the weighting factors constraints can be taken into account to further boost system power output.