Patent application number | Description | Published |
20090141684 | Mobile communication system - A mobile communication system has a plurality of nodes, hierarchically connected to each other, including a source base station and a target base station. A U-plane management station includes detecting unit detecting a handover for the mobile terminal, and a Bi-casting unit redundantly transmitting, when detecting the handover for the mobile terminal, the same user data addressed to the mobile terminal toward both of the source base station and the target base station. The target base station includes a retaining unit receiving the user data addressed to the mobile terminal, which is transmitted by the U-plane management station, and retaining the user data, and a wireless transmitting unit wirelessly transmitting, when the mobile terminal is wirelessly connected after moving, the user data requested by the mobile terminal in the user data retained by the retaining unit and addressed to the mobile terminal. | 06-04-2009 |
20090193128 | Call Connection Processing Method And Message Transmission/Reception Proxy Apparatus - A call connection processing method that uses SIP (Signal Invitation Protocol) to perform call connection between user terminals and a backbone network via an access network is disclosed. In the method the user terminal instructs a proxy apparatus in the access network to send specified SIP signaling messages to the backbone network in place of the user terminal; by following that instruction, the proxy apparatus does not send a certain SIP message of the SIP signaling messages to the user terminal, or sends another SIP messages to the backbone network in place of the user terminal. | 07-30-2009 |
20090193310 | Data Transfer Method - A data transfer method having a data retransmission function, in which a sending side saves data that was sent in memory, a receiving side uses a transmission confirmation signal to request the sending side to retransmit the data when the data was not properly received, then monitors the elapsed time, and when the data is not retransmitted after the elapsed time has exceeded a set time, uses a transmission confirmation signal again to request that the data be retransmitted, and where in response to that transmission confirmation signal, the sending side retransmits the saved data to the receiving side. | 07-30-2009 |
20100056145 | BASE STATION CONTROLLER, BASE STATION AND COMMUNICATION METHOD - A base station controller that manages a plurality of cells includes a receiving part configured to receive, from another base station controller that manages a cell sharing a communication area with each of the plurality of cells, identification information of a cell group to which a cell formed by a base station of connection destination candidate of a mobile station connected to a base station under control of the another base station controller belongs, and a control part configured to exercise control to transmit a message requesting connection to the mobile station to each base station forming the cells contained in the cell group. | 03-04-2010 |
20100173661 | COMMUNICATION SERVER, RADIO BASE STATION, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication server communicates with a radio base station that is capable of being connected to a fixed line by a user. A receiving unit receives station identification information identifying the radio base station and line identification information identifying a fixed line to which the radio base station is connected. An acquiring unit acquires authentication information indicating preliminarily set correlations between the station identification information and the line identification information. A determining unit determines whether a correlation between the station identification information and the line identification information received by the receiving unit coincides with a correlation indicated in the authentication information acquired by the acquiring unit. A determination result output unit outputs a determination result of the determining unit. | 07-08-2010 |
20100323699 | RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, TERMINAL APPARATUS, AND RADIO LINK SETTING METHOD IN RADIO COMMUNICATION SYSTEM - A radio communication system, including: a first and second base stations; and a terminal, the first base station includes a first position information acquisition unit which acquires position information of the first base station; a first control unit which generates a new-installation massage including the position information and indicating that the first base station is a newly installed base station and transmits the message to the second base station, transmits a signal link establishment request message to each second base station in the number capable of transmitting to the terminal as adjacent cell information when the first base station receives a new-installation response message responding to the new-installation message from the second base station, generates the adjacent cell information indicating that the second base station transmitted a signal link establishment response message is an adjacent base station. | 12-23-2010 |
20110002272 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A mobile communications network is a communications network that performs both circuit switching and packet switching. A data communications network is a communications network that performs packet switching. A communication apparatus is capable of connecting to the mobile communications network and the data communications network. The communication apparatus includes a communication control unit which obtains access from a mobile station to the mobile communications network, terminates the access whose call type is packet-switched call, and replaces that access with access to the data communications network. | 01-06-2011 |
20110092207 | RADIO NETWORK CONTROL DEVICE AND RADIO NETWORK CONTROL METHOD - In a radio network control device, if TMSI included in a connection request is not stored in a subscriber-information storage unit, IMSI corresponding to the TMSI is acquired from a higher-level device and access control is performed for radio communications between a mobile terminal and a base station. | 04-21-2011 |
20110223914 | RADIO BASE STATION APPARATUS, RADIO COMMUNICATING METHOD IN RADIO BASE STATION APPARATUS, AND RADIO COMMUNICATION PROGRAM - A radio base station apparatus for performing radio communication with a terminal apparatus, including: a logging processing unit which stores history information relating to handover in a storage unit, when the terminal apparatus performs handover; a change determination unit which determines whether a measurement parameter used by the terminal apparatus for determination of the handover is to be changed or not, on the basis of the history information, and outputs a change instruction if the change determination unit determines that the measurement parameter is to be changed; and a transmission unit which transmits the measurement parameter changed on the basis of the change instruction to the terminal apparatus. | 09-15-2011 |
20120076079 | BASE STATION DEVICE, TERMINAL DEVICE AND COMMUNICATION SYSTEM - A base station device including: a receiver that receives data from a terminal device; and a processor that performs setting for the reception of data from the terminal device, and deactivates a management of the terminal device after performing setting, wherein the receiver receives data from the terminal device in a state of deactivated management. | 03-29-2012 |
20130044584 | Data Transfer Method - A data transfer method having a data retransmission function, in which a sending side saves data that was sent in memory, a receiving side uses a transmission confirmation signal to request the sending side to retransmit the data when the data was not properly received, then monitors the elapsed time, and when the data is not retransmitted after the elapsed time has exceeded a set time, uses a transmission confirmation signal again to request that the data be retransmitted, and where in response to that transmission confirmation signal, the sending side retransmits the saved data to the receiving side. | 02-21-2013 |