Abstract: A radio base station that performs radio communication with a mobile station in a cell and that includes: resource management unit that secures resources necessary for radio communication with the mobile station; and communication control unit that, in accordance with a reconnection request from the mobile station, uses the resources secured by the resource management unit to perform reconnection control for establishing radio communication with the mobile station. If a reconnection request is received from the mobile station that takes another radio base station as the connection source in a state in which resources have not been secured by resource management unit, communication control unit interrupts the reconnection control, executes handover with the other base station in order to switch the connection destination of the mobile station from the other base station to its own base station, causes resource management unit to secure resources, and then resumes the reconnection control.

Abstract: A radio base station that performs radio communication with a mobile station in a cell and that includes: resource management unit that secures resources necessary for radio communication with the mobile station; and communication control unit that, in accordance with a reconnection request from the mobile station, uses the resources secured by the resource management unit to perform reconnection control for establishing radio communication with the mobile station. If a reconnection request is received from the mobile station that takes another radio base station as the connection source in a state in which resources have not been secured by resource management unit, communication control unit interrupts the reconnection control, executes handover with the other base station in order to switch the connection destination of the mobile station from the other base station to its own base station, causes resource management unit to secure resources, and then resumes the reconnection control.

Abstract: A radio base station that performs radio communication with a mobile station in a cell and that includes: resource management unit that secures resources necessary for radio communication with the mobile station; and communication control unit that, in accordance with a reconnection request from the mobile station, uses the resources secured by the resource management unit to perform reconnection control for establishing radio communication with the mobile station. If a reconnection request is received from the mobile station that takes another radio base station as the connection source in a state in which resources have not been secured by resource management unit, communication control unit interrupts the reconnection control, executes handover with the other base station in order to switch the connection destination of the mobile station from the other base station to its own base station, causes resource management unit to secure resources, and then resumes the reconnection control.

Abstract: A radio base station (10) of the present invention comprises: a determination unit (101) that determines whether to perform an off-the-air of a cell (11) managed by the local radio base station (10); a communication unit (102) that communicates with the other radio base stations (10) managing peripheral cells and with a communication provider apparatus (20) managing the bearer information of a user terminal (2); and a communication control unit (103). When it is determined that the off-the-air of the cell of the local radio base station (10) is to be performed, the communication control unit (103) transmits, to the other radio base stations (10) managing the peripheral cells, the authentication code of the user terminal (2) existing in the cell of the local radio base station (10).

Abstract: A radio base station (10) of the present invention comprises: a determination unit (101) that determines whether to perform an off-the-air of a cell (11) managed by the local radio base station (10); a communication unit (102) that communicates with the other radio base stations (10) managing peripheral cells and with a communication provider apparatus (20) managing the bearer information of a user terminal (2); and a communication control unit (103). When it is determined that the off-the-air of the cell of the local radio base station (10)is to be performed, the communication control unit (103) transmits, to the other radio base stations (10) managing the peripheral cells, the authentication code of the user terminal (2) existing in the cell of the local radio base station (10).

Abstract: A radio base station that performs radio communication with a mobile station in a cell and that includes: resource management unit that secures resources necessary for radio communication with the mobile station; and communication control unit that, in accordance with a reconnection request from the mobile station, uses the resources secured by the resource management unit to perform reconnection control for establishing radio communication with the mobile station. If a reconnection request is received from the mobile station that takes another radio base station as the connection source in a state in which resources have not been secured by resource management unit, communication control unit interrupts the reconnection control, executes handover with the other base station in order to switch the connection destination of the mobile station from the other base station to its own base station, causes resource management unit to secure resources, and then resumes the reconnection control.

Abstract: A mobile station measures reception quality levels of individual peripheral cells of a source cell and transmits information of the measured reception quality levels of the individual peripheral cells to a source base station that manages the source cell. The source base station selects a group of cells that are to be handed over, based on the information of reception quality levels of the individual peripheral cells that is received from the mobile station, and transmits information of handover ready completion cells that are ready for handover in the selected group of cells to the mobile station. The mobile station selects a target cell that is to be handed over, based on the information of handover ready completion cells that is received from the source base station, and on the information of reception quality levels of the individual peripheral cells at that time.

Abstract: A network selection for easily selecting a network according to its status is disclosed. A wireless base station control device selects a network based on a wireless base station and a type of information to be transmitted on the network among networks provided between the wireless base station and the wireless base station control device, and ensures a band for transmitting information to be transmitted.

Abstract: A mobile station measures reception quality levels of individual peripheral cells of a source cell and transmits information of the measured reception quality levels of the individual peripheral cells to a source base station that manages the source cell. The source base station selects a group of cells that are to be handed over, based on the information of reception quality levels of the individual peripheral cells that is received from the mobile station, and transmits information of handover ready completion cells that are ready for handover in the selected group of cells to the mobile station. The mobile station selects a target cell that is to be handed over, based on the information of handover ready completion cells that is received from the source base station, and on the information of reception quality levels of the individual peripheral cells at that time.

Abstract: The present invention aims to provide the radio access network system which can analyze a fault during call processing by a mobile terminal. A control equipment for controlling calls for a mobile terminal and a relay equipment for relaying control signals between the mobile terminal and the control equipment monitor control signals during the call processing for the specified mobile terminal. A data collection and analysis equipment receives and processes those monitored control signals for a fault analysis.

Abstract: A wireless access network system includes a wireless access network device and a management device. A resource of the wireless access network device is shared by a plurality of common carriers. The management device stores shared information defining a common carrier authorized to use a resource in shared information memory, and determines whether or not a call requesting to capture a resource is permitted to use the resource by referring to the shared information in the shared information memory.

Abstract: An RNC is divided into a plurality of user plane servers (UPSs) for executing the transmission control of user's data and a control plane server (CPS) for executing the transmission control of a control signal for transmitting user's data. A C plane control section for executing the transmission control of the control signal for transmitting the user's data is disposed in the CPS, and similarly a U plane control section for executing the transmission control of the user's data is disposed in each of the UPSs. A logical connection for transmitting control information is interposed between the U plane control section and the C plane control section. Hence, such a system, in which both the function of the C plane control and the function of the U plane control in the radio access controller (RNC) are physically divided into a plurality of devices, provides a simple control system, thereby making it possible to rapidly exchange the control information between the protocol entities.

Abstract: A network selection for easily selecting a network according to its status is disclosed. A wireless base station control device selects a network based on a wireless base station and a type of information to be transmitted on the network among networks provided between the wireless base station and the wireless base station control device, and ensures a band for transmitting information to be transmitted.

Abstract: A wireless line sharing network system enabling the charge of fees according to the use of a wireless communication network as well as reduction in capital invested by a communication carrier. A user terminal that subscribes to a communication carrier accesses a corresponding communication carrier network at a licensed radio frequency through a wireless base station (BS) and a control station (10). In response to a call connection request, a call acceptance controller (101) accepts the call and reserves bandwidth based on a radio bandwidth allocation pattern defined by contract and current use conditions. A bandwidth determination section (107) determines bandwidth for the call connection request using the call connection request, a call connection acknowledgement and a bandwidth table (106). A rate change controller (103) controls bandwidths for user terminals so that the currently used bandwidth of each communication carrier are kept within a predetermined range.

Abstract: The present invention aims to provide the radio access network system which can analyze a fault during call processing by a mobile terminal. A control equipment for controlling calls for a mobile terminal and a relay equipment for relaying control signals between the mobile terminal and the control equipment monitor control signals during the call processing for the specified mobile terminal. A data collection and analysis equipment receives and processes those monitored control signals for a fault analysis.

Abstract: A radio data communication apparatus and a radio data communication method are disclosed which prevent, even in a situation wherein a circuit state is bad and unstable, repetition of acquisition of an electric field strength and discrimination of whether or not connection is possible until the circuit state becomes good is prevented thereby to prevent drop of a processing speed of a portable terminal and increase of amounts of power consumption of the portable terminal and a radio unit.

Abstract: An information delivery system includes a mobile terminal of a user, a home domain, and an access destination domain for a specific area to which the mobile terminal currently belongs. The access destination domain transmits a selected service data of a group of service data about the specific area to the mobile terminal when acquiring an identifier of the mobile terminal, and transmits a user personal data request with the identifier of the mobile terminal to the home domain. The home domain transmits user personal data corresponding to the identifier to the access destination domain in response to the user personal data request, and the user personal data indicates features of the user. The access destination domain updates statistic data based on the user personal data, and previously selects one of the group of service data as the selected service data based on the updated statistic data.

Abstract: A data communication system, which sends or receives data to or from an application server using the same protocol via a transmission line as one of a wire communication network, a wireless communication network, and both a wire communication network and a wireless communication network, comprises a table 14 containing therein a relation among a service identifier of the application server, a destination address, a communication network type, and a processing time of the application server; and a retransmission timer setting unit 16 which references the table to obtain the processing time of the application server based on the service identifier, destination address, and communication network type during transmission or reception of data to or from the application server and sets the time as a retransmission time.

Abstract: An RNC is divided into a plurality of user plane servers (UPSs) for executing the transmission control of user's data and a control plane server (CPS) for executing the transmission control of a control signal for transmitting user's data. A C plane control section for executing the transmission control of the control signal for transmitting the user's data is disposed in the CPS, and similarly a U plane control section for executing the transmission control of the user's data is disposed in each of the UPSs. A logical connection for transmitting control information is interposed between the U plane control section and the C plane control section. Hence, such a system, in which both the function of the C plane control and the function of the U plane control in the radio access controller (RNC) are physically divided into a plurality of devices, provides a simple control system, thereby making it possible to rapidly exchange the control information between the protocol entities.

Abstract: A radio communication apparatus is provided which is capable of automatically selecting a suitable radio communication device at the time of activating a communication application such as an electronic mail or a file transfer. This radio communication apparatus comprises a first table for predefining an important judgement parameter out of a plurality of judgement parameters corresponding to a plurality of communication applications, a second table for pre-setting data corresponding to a plurality of judgement parameters corresponding to a plurality of radio communication devices, and control devices for selecting a radio communication device by referring to the second table based on an important judgement parameter acquired by the second table based on an important judgement parameter acquired by referring to the first table in response to activation of a communication application.