Patent application number | Description | Published |
20090109933 | BASE STATION APPARATUS, COMMUNICATION METHOD AND MOBILE COMMUNICATION SYSTEM - To provide a technology capable of reducing a processing load on a base station controller and restraining a traffic quantity within a mobile communication system. A base station apparatus connected to a base station controller has a first establishing unit establishing a first logic communication path between the base station apparatus and the base station controller; a second establishing unit establishing a second logic communication path between the base station apparatus and another base station apparatus; and a forwarding unit forwarding data, transmitted and received with the another base station apparatus and the base station controller serving as terminal points, as data of another base station apparatus via the first logic communication path and the second logic communication path. | 04-30-2009 |
20090117905 | Cell Selection Method, Mobile Station Device And Mobile Communication System In Hierarchical Cell Structure - In a radio mobile communication system adopting a hierarchical cell structure comprising a plurality of layers having respective cells of different sizes, the threshold value of the number of times of cell reselections and/or the threshold value of the time required to measure the number of times of cell reselections are set for each layer. A mobile station device compares the number of times of cell reselections in a specific time and/or the time required for the number of times of cell reselections to reach a specific value with the threshold values and selects a transfer target cell. | 05-07-2009 |
20090190538 | BASE STATION APPARATUS - A disclosed base station apparatus used in mobile communication system, where data are transmitted and received using shared channels, includes a signal generating unit for generating a within-range check signal used to determine, after a mobile station apparatus present in a coverage of the base station apparatus has entered into a discontinuous reception mode (DRX) and/or a discontinuous transmission mode (DTX), whether the mobile station apparatus is present in the coverage; a signal transmission control unit for controlling transmission of the within-range check signal so that the within-range check signal is transmitted to the mobile station apparatus upon passage of a predetermined time while the mobile station apparatus remains in the DRX and/or DTX; and a determining unit for determining the presence of the mobile station apparatus in the coverage if response to the within-range check signal is returned, and determine absence from the coverage if no response is returned. | 07-30-2009 |
20090201875 | Device And Method For Radio Communication - In a radio communication device that wirelessly communicates with mobile stations using shared radio resources, a communication decision unit determines whether information indicating a request for realtime communication is contained in a communication request received from a mobile station and/or communication setup data received from an upper-level device. A radio resource securing unit secures a radio resource continuously or periodically for the requesting mobile station if the received communication request and/or communication setup data contains information indicating a request for realtime communication. | 08-13-2009 |
20090215460 | Base Station Apparatus, User Equipment, Method Used In Mobile Communications System Performing Handover Between Bandwidths - A base station apparatus used in a mobile communication system performing communications using all or a part of a system bandwidth and includes a first receiving part to receive a request signal requesting handover between bandwidths from a user equipment, a first transmission part to transmit an instruction signal to one or more peripheral base stations of a handover transfer destination candidate according to the request signal, a second receiving part to receive a response signal responsive to the instruction signal from one or more peripheral base stations, a second transmission part to transmit an individual control signal, including at least frequency information of a channel measurement signal of the handover transfer destination candidate, to the user equipment according to the response signal. The channel measurement signal is transmitted from the one or more peripheral base stations in a frequency of the frequency information according to the instruction signal. | 08-27-2009 |
20090245155 | WIRELESS COMMUNICATION SYSTEM, WIRELESS BASE STATION, USER EQUIPMENT, AND MULTI SERVICE MANAGEMENT EQUIPMENT - A wireless communication system includes a multi service supplying unit which transmits the same data to a plurality of user equipment and a quality evaluation result collecting unit which collects quality evaluation results of a multi service from the plurality of user equipment. The wireless communication system includes a resource controlling unit which controls shared wireless communication resources used for the multi service according to the quality evaluation results. | 10-01-2009 |
20090303947 | MOBILE COMMUNICATION SYSTEM, MOBILE COMMUNICATION METHOD, AND COMMUNICATION APPARATUS - A mobile station-side acquirer acquires the MTU value notified by a base station-side notifier and stores the acquired MTU value in a mobile station-side memory. A mobile station-side transmitter transmits data to a destination with the data size set to be smaller than or equal to the MTU value stored in the mobile station-side memory. A base station-side acquirer acquires the MTU value of the transmission path and stores the acquired MTU value in a base station-side memory. The base station-side notifier notifies the mobile station of the MTU value stored in the base station-side memory | 12-10-2009 |
20100016013 | Method And Apparatus For Transmitting Data Between Radio Equipment And Radio Equipment Controls - Radio equipment (RE) is shared so as to use a plurality of types of radio signals, and data (IQ data) of the plurality of types of radio signals and monitoring control data are variably arranged in a frame for transmitting and receiving data between the RE and radio equipment controls (RECs). A plurality of types of data are simultaneously transmitted and received by one communication link between the RE and the RECs. | 01-21-2010 |
20100031015 | IP Network Communication Method Having Security Function, And Communication System - An IP network communication system which applies encryption with a reduced processing delay caused by a CPU load which is increased by the application of IPsec etc., and with reduced degradation of data transmission efficiency in a network, is provided. The IP network communication system having a security function includes an encryption processing part to encrypt a predetermined area range of one packet to be transmitted, and not to encrypt a residual area of the one packet; and a transmission part to transmit the packet encrypted by the encryption processing part through a tunnel for encryption. | 02-04-2010 |
20100067466 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION, WIRELESS BASE STATION AND COMMUNICATION METHOD - A wireless communication system having a plurality of wireless base stations (BSs), and a second BS included under at least one of a first BS among the plurality of BSs and usable by a specified mobile station, the wireless communication system includes registering first identifiers as identifiers of the first BS and a second identifier as an identifier of the second BS in the specified mobile station in advance. The wireless communication system includes transmitting first information to the second BS when an identifier of a present cell is other than the first and second identifiers, and transmitting second information to the second BS when the identifier of the present cell is the first or second identifier, and controlling an operation of the second BS based on the received first or second information. | 03-18-2010 |
20100120434 | MOBILE COMMUNICATION SYSTEM - A wireless base station connected together with another wireless base station to a superior apparatus, comprises, a forwarding controller to forward data received from the superior apparatus and addressed to the mobile station to the mobile station in a case of receiving none of a handover request message from a mobile station connected to the wireless base station itself by use of a wireless channel shared between or among a plurality of mobile stations, and to forward a part or the whole of the data received from the superior apparatus after receiving the handover request message to the another wireless base station in a case of receiving the handover request message from the mobile station and transmitting a handover process request message in response to this handover request message to another wireless base station defined as a handover destination, and a notifying unit to notify the another wireless base station of information used for the another wireless base station to determine a reception allowable period of the data forwarded from the wireless base station. | 05-13-2010 |
20100202410 | Communication System - A source eNB determines whether an X2 interface is established between the source eNB and a target eNB when the source eNB performs a handover of a UE under the control of the source eNB to the target eNB. When the X2 interface is not established between the source eNB and the target eNB, the source eNB inquires with an address management node about the IP address of the target eNB. Upon receipt of the IP address of the target eNB from the address management node, the source eNB accesses the target eNB using the IP address and establishes the X2 interface. After establishing the X2 interface, the source eNB performs a handover of the UE to the target eNB. | 08-12-2010 |
20110177824 | WIRELESS BASE STATION, WIRELESS TERMINAL, SPECIFIC INFORMATION DELIVERY METHOD, AND SPECIFIC INFORMATION RECEIVING METHOD - In a wireless base station, a specific information receiver receives specific information delivered from a higher-level device to a wireless terminal. A specific information deliverer delivers the specific information to the wireless terminal via multiple physical channels activated in a wireless base station. Where a common channel via which information is periodically broadcast to multiple wireless terminals and a shared channel of which available radio resources are allocated to wireless terminals to transmit voice data and the like to the terminals are activated in the wireless base station, for example, the specific information deliverer can deliver the specific information using the common channel if the wireless terminal is in a standby state, and can deliver the specific information using the shared channel if the wireless terminal is in a communicating state. | 07-21-2011 |
20120057548 | RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND RADIO COMMUNICATION METHOD IN A RADIO COMMUNICATION SYSTEM - A radio communication system including: a mobile station apparatus; and a base station apparatus, wherein the mobile station apparatus and the base station apparatus perform radio communication, the base station apparatus includes: a first controller which couples each frequency band including a plurality of divided bandwidths allocated to the base station apparatus, and allocates one frequency band for transmitting a common channel in the coupled frequency band, and a first transmitter which transmits the common channel using by the allocated frequency band, and the mobile station includes a receiver which receives the common channel. | 03-08-2012 |