Abstract: A wireless communications system includes a first wireless apparatus and a second wireless apparatus. The first wireless apparatus transmits a paging message that includes information indicating a plurality of cells. The paging message causes the second wireless apparatus to transition from an idle state to a connected state. The second wireless apparatus perform processing of connecting to a cell selected based on the information included in the paging message transmitted from the first wireless apparatus.

Abstract: A wireless communications system includes a packet core network, and a wireless access network including a base station and a terminal. The wireless communications system includes plural terminals; and a base station configured to perform a process related to a proximity-based communications service between the plural terminals and when a failure in a connection between the base station and the packet core network occurs, the base station causes execution of proximity-based communication between the plural terminals by using the process related to the proximity-based communications service and performing authentication and authorization of communication with a terminal connected to the base station among the plural terminals.

Abstract: A wireless communications system includes a packet core network and a wireless access network that includes a base station and a terminal. The wireless communications system is capable of communications between terminals through a first path that includes the packet core network and communications between terminals through a second path that does not include the packet core network. The wireless communications system includes plural terminals; and a control station configured to be capable of processing related to proximity-based communications services between the plural terminals, obtaining identifiers of the plural terminals and position information related to positions of the plural terminals, by the processing related to the proximity-based communications services, and causing communication between the plural terminals to be executed by the second path, based on the identifiers of the plural terminals and the position information related to the positions of the plural terminals.

Abstract: In a mobile communications system, a base station includes a generation unit and a transmission unit. The generation unit generates broadcast information indicating, among a plurality of available frequency bands for wireless communication, a frequency band to be used to transmit same data at a same timing with another base station. The transmission unit broadcasts the broadcast information. A mobile station includes a reception unit and a control unit. The reception unit receives the broadcast information broadcast by the base station. The control unit controls, based on the broadcast information, reception of same data transmitted at the same timing from the base station and the other base station.

Abstract: A radio communication system for exchange of information used in a radio frame format between a base station and a terminal, the radio communication system wherein, the base station includes: a selector configured to select a radio frame format for each terminal from a plurality of radio frame formats divided in a frequency direction; a frame format generator configured to map a radio channel, includes a dedicated control channel and data channel, for each terminal in the selected radio frame format, a controller configured to control the dedicated control channel position in a time direction in the radio frame format for the terminal to differ from other dedicated control channel position for other terminal; a transmitter configured to transmit information indicating the position of the dedicated control channel to the terminal that includes: a receiver configured to receive the information indicating the position of the dedicated control and radio channel.

Abstract: A scheduling process handles a plurality of communication services in a collective manner, thus making a radio communications system more operable. A pilot signal sender sends pilot signals with carrier frequencies each corresponding to an N (N?1) different communication services. A scheduler collects N×n instances of propagation environment data from n (n?1) terminal devices and selects terminal devices and communication services therefor by assigning terminal devices having a better propagation environment to the plurality of different communication services in a collective manner. The pilot signals are used by a propagation environment data sender to measure and report a propagation environment of each carrier frequency. A communication function configurer automatically sets up a communication function to adapt to the communication service that the base station has assigned.

Abstract: A radio communication system including: a first and second base station apparatuses which include one or more of sells or sectors respectively; and a terminal apparatus, wherein the first and second base station apparatuses and the terminal apparatus performs radio communication, the first and second base station apparatuses includes: a process unit which performs a scrambling process to a first and second transmission data respectively by using a common scrambling code when the first and second transmission data differing each of the cells or the sectors are transmitted to the terminal apparatus; and a transmission unit which transmits the scrambling processed first and second transmission data to the terminal apparatus respectively, and the terminal apparatus includes a reception unit which receives the first and the second transmission data and performs descrambling process to the first and the second transmission data by using the common scrambling code.

Abstract: A wireless communication system includes: a mobile station; a first base station that communicates with the mobile station; and a second base station that communicates with the mobile station. The mobile station includes a measuring unit, a calculating unit, and a sending unit. The measuring unit measures a location of the mobile station. The calculating unit calculates, by using location information measured by the measuring unit and location information on the first base station, a distance between the mobile station and the first base station. The sending unit sends, to the second base station based on the distance calculated by the calculating unit and a predetermined threshold, a request signal that is used to request setting of a channel between the second base station and the first base station.

Abstract: A wireless communication system includes a terminal configured to perform wireless communication concurrently using a cell of a first type enabling connection without association with another cell and a cell of a second type enabling connection by being associated with the cell of the first type; and a base station configured to form a first cell of the second type and when detecting that the terminal selects the first cell for the cell of the first type, the base station notifies the terminal of a second cell of the first type different from the first cell so as to allow the terminal to change connection to the second cell.

Abstract: A wireless communication system includes a terminal configured to perform wireless communication concurrently using a cell of a first type enabling connection without being associated with another cell and a cell of a second type enabling connection by being associated with the cell of the first type; and a base station configured to form a first cell and transmit broadcast information through the first cell, the broadcast information including identification information of a second cell of the first type different from the first cell and giving notification that the second cell is a cell of the first type. The terminal selects the second cell as the cell of the first type based on the broadcast information transmitted by the base station.

Abstract: A base station accommodated in a communications system for communicating with a mobile station, the base station includes: a transmitter configured to generate frequency band information indicating which frequency band of frequency bands used in the communications system to communicate with a mobile station, to transmit the frequency band information by using a specific frequency band selected from a plurality of frequency bands available in the system, and to communicate with the mobile station using at least one of the plurality of frequency bands.

Abstract: A wireless communication system includes a terminal configured to performed wireless communication simultaneously using a first-type cell enabling connection without association with another cell and a second-type cell connectable by being associated with the first-type cell; and a base station configured to form the first-type cell and transmit a broadcast signal giving notification that a cell formed thereby is the first-type cell. The terminal selects the cell as the first-type cell, based on the broadcast signal.

Abstract: A wireless communication system corresponding to a wireless terminal device in which at least one of a first frequency bandwidth for use in an up link and a second frequency bandwidth for use in a down link is variable, including a capability information reception unit capable of receiving and extracting terminal capability information transmitted from the wireless terminal device and related to capability of the wireless terminal device; a category designation unit capable of designating a terminal category to which the wireless terminal device belongs, based on the terminal capability information received and extracted by the capability information reception unit; and a link setting unit capable of setting a link to the wireless terminal device and transmitting a control signal depending on the link setting to the wireless terminal device, based on the terminal category designated by the category designation unit.

Abstract: In a radio communication system a first radio station performs communication by the use of a first radio signal. A second radio station receives a second radio signal which is indistinguishable from the first radio signal. A third radio station is in a radio communication area of the first radio station and a radio communication area of the second radio station. A communication format conversion unit generates a third radio signal by converting a communication format of the second radio signal to a communication format which is distinguishable from the first radio signal, and communicates with the third radio station by the use of the third radio signal.

Abstract: In a radio communication system a first radio station performs communication by the use of a first radio signal. A second radio station receives a second radio signal which is indistinguishable from the first radio signal. A third radio station is in a radio communication area of the first radio station and a radio communication area of the second radio station. A communication format conversion unit generates a third radio signal by converting a communication format of the second radio signal to a communication format which is distinguishable from the first radio signal, and communicates with the third radio station by the use of the third radio signal.

Abstract: In a radio communication system a first radio station performs communication by the use of a first radio signal. A second radio station receives a second radio signal which is indistinguishable from the first radio signal. A third radio station is in a radio communication area of the first radio station and a radio communication area of the second radio station. A communication format conversion unit generates a third radio signal by converting a communication format of the second radio signal to a communication format which is distinguishable from the first radio signal, and communicates with the third radio station by the use of the third radio signal.

Abstract: A wireless communication system includes a terminal capability information reception unit to receive and extract terminal capability information, the terminal capability information indicating at least one of an uplink frequency bandwidth as a capability of a wireless terminal device and a downlink frequency bandwidth as a capability of the wireless terminal device; a terminal category setting unit to identify a terminal category to which the wireless terminal device belongs, based on the terminal capability information; and a link setting unit to set a link between a base station and the wireless terminal device and to transmit a control signal depending on the link setting between the base station and the wireless terminal device, based on the terminal category set by the terminal category setting unit.

Abstract: A base station being one of two base stations, the base station comprising: a processor configured to select a state of a terminal from a first state and a second state based on at least one of a communication type of data transmitted from one of the two base stations to the terminal and a transfer delay between the two base stations, the first state being a state in which a base station of the two base stations that transmits the data to the terminal is different from a base station of the two base stations that receives from the terminal a response signal corresponding to the data, the second state being a state in which a base station that transmits the data to the terminal is same as a base station that receives from the terminal the response signal corresponding to the data.

Abstract: A radio communication system, includes a base station apparatus; and a terminal apparatus, wherein radio communication is performed between the base station apparatus and terminal apparatus, the terminal apparatus includes: a required time notification signal generation unit which generates a required time notification signal indicating a required time for change of a transmission bandwidth or a reception bandwidth to the base station apparatus; and a transmission unit which transmits the required time notification signal, and the base station apparatus includes a reception unit which receives the required time notification signal.

Abstract: A wireless communication method for transmitting a plurality of wireless signals using a plurality of carriers from a first wireless communication apparatus to a second wireless communication apparatus, each of the plurality of carriers having each of a plurality of bandwidths, the wireless communication method including: determining a carrier group including at least two of the plurality of carrier, receiving group power control information for controlling a transmission power of the carrier group, the group power control information being generated in accordance with a reception quality of the carrier group, the reception quality of the carrier group being obtained in accordance with at least one of the plurality of wireless signals that has a carrier included in the carrier group, and transmitting the plurality of wireless signals in accordance with the group power control information.