Abstract: A base station apparatus that wirelessly communicates with a wireless terminal, including: a determination portion that determines a mode of the wireless terminal that exists in a service area of the base station apparatus; and a setting portion that sets a first mode in which a first period in which the base station apparatus is communicable with the wireless terminal and a second period in which the base station apparatus is incommunicable with the wireless terminal are provided alternately, based on a result of the determination of the determination portion, and sets a length of the second period based on the result of the determination of the determination portion.

Abstract: A system includes a terminal apparatus configured to generate pieces of data, each of the pieces of data including time information indicating when each of the pieces of data is generated; a destination apparatus configured to accumulate the pieces of data; a relay apparatus configured to store the pieces of data transmitted from the terminal apparatus based on the time information and to relay the pieces of data to the destination apparatus; and a processing apparatus configured to acquire the pieces of data that are stored in the relay apparatus and to process the pieces of data, wherein the relay apparatus is configured to store an amount of the pieces of data in the relay apparatus based on the time information, the amount corresponding to an amount of data that the processing apparatus processes based on a time range of the pieces of data.

Abstract: An information processing device includes a memory configured to store information related to data accesses by executions of a plurality of applications, and a network configuration of a network system including a plurality of communication devices and a plurality of processing devices each of which executes any one of the plurality of applications, and a processor configured to calculate traffic amounts, when each of the plurality of communication devices is assumed as a data storage location to store data to be accessed by the executions, to be generated in the network system by the executions, based on the information and the network configuration, and determine a communication device to store the data to be accessed by the executions based on the calculated traffic amounts, among the plurality of communication devices.

Abstract: A transmitting apparatus selects any one of areas included in a transmission area of a first signal used for a first process, and transmits the first signal by using the selected area. The area is selected according to a type of information to be transmitted among a plurality of types of information capable of being transmitted to a receiving apparatus. The receiving apparatus receives the first signal transmitted by the transmitting apparatus, and performs a second process by using information according to the area in which the first signal is received.

Abstract: A wireless base station for performing wireless communication with a wireless terminal using a frequency bandwidth different from another adjacent wireless base station in a first time period and performing wireless communication with a wireless terminal using a frequency bandwidth shared with another adjacent wireless base station in a second time period and including a control unit that does not change a burst profile to be applied to an uplink transmission or assigns a burst profile corresponding to a wireless transmission rate equal to or less than a wireless transmission rate corresponding to an applied burst profile with respect to a wireless terminal used for wireless communication in the first time period.

Abstract: A transmitting apparatus transmits a data stream via multiple wireless links and includes a storage unit that stores a guaranteed rate to be guaranteed for the data stream; a dividing unit that divides traffic of the data stream into first traffic corresponding to the guaranteed rate stored in the storage unit and second traffic corresponding to a portion of the traffic exceeding the guaranteed rate; and a distributing unit that distributes the first traffic to at least any one of the wireless links preferentially over the second traffic, and distributes the second traffic to available bandwidths of the plural wireless links.

Abstract: A reception unit receives data from communication apparatuses. A transmission unit transmits data to the communication apparatuses. A control unit determines, in an adaptive way, which modulation and coding schemes to use to transmit and receive data. At a first stage, a modulation and coding scheme with a low transmission rate or a modulation and coding scheme that minimizes power requirements is selected from among a plurality of candidates therefor. At a second stage, the modulation and coding scheme of at least one of the communication apparatuses is changed to another scheme having a higher transmission rate, when it is impossible to allocate sufficient resources for the modulation and coding schemes selected at the first stage.

Abstract: A reception unit receives data from communication apparatuses. A transmission unit transmits data to the communication apparatuses. A control unit determines, in an adaptive way, which modulation and coding schemes to use to transmit and receive data. At a first stage, a modulation and coding scheme with a low transmission rate or a modulation and coding scheme that minimizes power requirements is selected from among a plurality of candidates therefor. At a second stage, the modulation and coding scheme of at least one of the communication apparatuses is changed to another scheme having a higher transmission rate, when it is impossible to allocate sufficient resources for the modulation and coding schemes selected at the first stage.

Abstract: In a communication system a base station maps paging information the destinations of which are a plurality of mobile stations to a specific frame of frames and transmits the specific frame to a relay station. The relay station for relaying communication between the base station and the plurality of mobile stations receives the specific frame, maps the paging information the destination of which are the plurality of mobile stations and which is mapped to the specific frame, to the remaining frames of the frames on the basis of a determined rule, and transmits the remaining frames to the plurality of mobile stations. When the plurality of mobile stations are under the control of the relay station, the plurality of mobile stations receive the remaining frames and acquire the paging information on the basis of the determined rule.

Abstract: Upon detection of an environmental change in a neighborhood, a cellular phone makes selections of a communication device and a communication path, which are used for a communication. A communication packet transmitted from a communication corresponding terminal is distributed to the cellular phone that is the destination of the communication packet, and a PC physically positioned in the neighborhood of the cellular phone, according to the results of the selections, thereby switching from a communication using only the cellular phone to a communication using both the cellular phone and the PC.

Abstract: A method for allocating uplink radio resources to a radio communication device includes transmitting a polling signal; allocating radio resources for data transmission based on a response signal to the polling signal; suspending transmission of the polling signal when it is determined that a condition to omit the transmission of the polling signal is satisfied; and allocating radio resources for data transmission while the transmission of the polling signal is suspended.

Abstract: A reception unit receives data from communication apparatuses. A transmission unit transmits data to the communication apparatuses. A control unit determines, in an adaptive way, which modulation and coding schemes to use to transmit and receive data. At a first stage, a modulation and coding scheme with a low transmission rate or a modulation and coding scheme that minimizes power requirements is selected from among a plurality of candidates therefor. At a second stage, the modulation and coding scheme of at least one of the communication apparatuses is changed to another scheme having a higher transmission rate, when it is impossible to allocate sufficient resources for the modulation and coding schemes selected at the first stage.

Abstract: A reception unit receives data from communication apparatuses. A transmission unit transmits data to the communication apparatuses. A control unit determines, in an adaptive way, which modulation and coding schemes to use to transmit and receive data. At a first stage, a modulation and coding scheme with a low transmission rate or a modulation and coding scheme that minimizes power requirements is selected from among a plurality of candidates therefor. At a second stage, the modulation and coding scheme of at least one of the communication apparatuses is changed to another scheme having a higher transmission rate, when it is impossible to allocate sufficient resources for the modulation and coding schemes selected at the first stage.

Abstract: A management device in a wireless communication system including a first communication terminal, a second communication terminal, a base station, includes a storage unit to store information related to an operation state of the second communication terminal associated with the first communication terminal as a communication counterpart, and a control unit that identifies the operation state of the associated second terminal based on the information stored in the storage unit, and changes an intermittent reception period of the first communication terminal to be longer than an existing period, based on the state of the second communication terminal.

Abstract: In a communication system a base station maps paging information the destinations of which are a plurality of mobile stations to a specific frame of frames and transmits the specific frame to a relay station. The relay station for relaying communication between the base station and the plurality of mobile stations receives the specific frame, maps the paging information the destination of which are the plurality of mobile stations and which is mapped to the specific frame, to the remaining frames of the frames on the basis of a determined rule, and transmits the remaining frames to the plurality of mobile stations. When the plurality of mobile stations are under the control of the relay station, the plurality of mobile stations receive the remaining frames and acquire the paging information on the basis of the determined rule.

Abstract: A base station apparatus that wirelessly communicates with a wireless terminal, including: a determination portion that determines a mode of the wireless terminal that exists in a service area of the base station apparatus; and a setting portion that sets a first mode in which a first period in which the base station apparatus is communicable with the wireless terminal and a second period in which the base station apparatus is incommunicable with the wireless terminal are provided alternately, based on a result of the determination of the determination portion, and sets a length of the second period based on the result of the determination of the determination portion.

Abstract: A reception unit receives data from communication apparatuses. A transmission unit transmits data to the communication apparatuses. A control unit determines, in an adaptive way, which modulation and coding schemes to use to transmit and receive data. At a first stage, a modulation and coding scheme with a low transmission rate or a modulation and coding scheme that minimizes power requirements is selected from among a plurality of candidates therefor. At a second stage, the modulation and coding scheme of at least one of the communication apparatuses is changed to another scheme having a higher transmission rate, when it is impossible to allocate sufficient resources for the modulation and coding schemes selected at the first stage.

Abstract: A communication system includes a transmitter that transmits a data flow through a single link or a parallel links, and a receiver that receives packets of the data flow, when the data flow of the received packets is transmitted through the parallel links, the received packets are aligned in order and output, and when the data flow of the received packets is transmitted through the single link, the received packets are output in a received sequence.

Abstract: A parameter collecting method used for distributing radio resources, collecting a total number (M) of terminals for directly performing radio communication with a radio base station without a relay station or radio quality between each of terminals for directly performing radio communication with the radio base station without the relay station as a parameter, and collecting a total number (N) of terminals performing communication with the radio base station through the relay station or aggregated information on radio quality between the respective terminals performing communication with the radio base station through the relay station and the relay station as the parameter.

Abstract: A base station device includes: a connection determining unit that determines whether a connection can be allowed in response to a wireless communication connection request from a wireless terminal that can have wireless communications with other base stations; a frequency calculating unit that calculates the frequency at which the connection determining unit prohibits a connection; and a power changing unit that changes transmission power, based on the connection prohibition frequency.