Abstract: An information processing apparatus includes a processor that executes processing including setting a priority degree of transmission of information to be notified to each of a plurality of terminals including an in-vehicle terminal and terminals carried by pedestrians based on position information of the plurality of terminals and transmitting the information to the terminal having a predetermined priority degree among the plurality of terminals when it is determined that the information needs to be transmitted based on a position of the in-vehicle terminal.

Abstract: A movable object management system includes a base station configured to perform radio communication with a radio communication apparatus, and a controller configured to determine whether a movable object is present in an area associated with a regulation on the movable object, based on location information of the movable object received from the radio communication apparatus via the base station.

Abstract: A communication apparatus includes a plurality of transmitting units that transmit a signal stream from each different antenna; a scheduling unit being configured such that the number of outputs is set so as to not exceed the number of transmitting units capable of transmitting, and a combination of transmitting units corresponding to the number of outputs, to each of which one of the signal streams is to be input, is defined in the form of a precoding matrix; a codeword generating unit that generates, from data to be transmitted, a predetermined number of codewords to be transmitted out simultaneously; an encoder that generates, from the codewords, signal streams corresponding to the number of outputs; and a modulation unit that supplies each of the signal streams to a corresponding one of the transmitting units in accordance with the precoding matrix.

Abstract: A communication apparatus includes a judgment section which judges the state of receiving a downlink control channel from a base station, and a power control section which does not assign transmission power to at least the top one time block in a frame transmitted to be by an uplink control channel, if it is judged by the judgment section that the downlink control channel has not been received.

Abstract: A communication apparatus includes a plurality of transmitting units that transmit a signal stream from each different antenna; a scheduling unit being configured such that the number of outputs is set so as to not exceed the number of transmitting units capable of transmitting, and a combination of transmitting units corresponding to the number of outputs, to each of which one of the signal streams is to be input, is defined in the form of a precoding matrix; a codeword generating unit that generates, from data to be transmitted, a predetermined number of codewords to be transmitted out simultaneously; an encoder that generates, from the codewords, signal streams corresponding to the number of outputs; and a modulation unit that supplies each of the signal streams to a corresponding one of the transmitting units in accordance with the precoding matrix.

Abstract: A communication apparatus includes a judgment section which judges the state of receiving a downlink control channel from a base station, and a power control section which does not assign transmission power to at least the top one time block in a frame transmitted to be by an uplink control channel, if it is judged by the judgment section that the downlink control channel has not been received.

Abstract: A power assigning method for a wireless base station apparatus that includes a main system for performing normal packet communications between the wireless base station apparatus and mobile stations and includes a subsystem for performing high speed packet communications from the wireless base station apparatus to the mobile stations is disclosed. In the method, the wireless base station apparatus assigns, as transmission power, a part of power obtained by subtracting power being used by the main system from a maximum transmission power of the wireless base station apparatus to initial transmission for the high speed packet communications for a mobile station, and increases transmission power for retransmission by a predetermined amount. When the transmission power cannot be increased by the predetermined amount, transmission power for the retransmission is increased by decreasing power used for the main system.

Abstract: A cell disassembly unit, cell assembly unit, and clock reproduction method which enables a clock of a source signal multiplexed and transmitted to be stably reproduced even in a situation where a synchronization clock of a transmission network is unstable. The source signal multiplexed into cells is inputted in accordance with the clock which is asynchronous to a network. A timing information separation circuit included in a cell disassembly unit separates transmission timing information which is obtained by converting transmission timing in each constant period of the clock of the source signal by the use of transmission timing of a synchronization clock of the network from the cells received. A timing information replacement circuit accepts the transmission timing information separated, averages differentials between adjacent pieces of transmission timing information every predetermined period, and replaces the transmission timing information on the basis of an average differential.