Abstract: A communication apparatus comprises a processing information acquiring unit to acquire a processing delay time, a transmission information acquiring unit to acquire each transmission delay time, a collecting unit to collect each arrival time from nodes onward from each of the subordinated nodes, a calculating unit to calculate the time after distribution data is received by the self-node until it arrives at each of the terminals as the arrival time from the home node onward for each of the nodes through which the distribution data is routed based on the processing delay time, the transmission delay times, and each the arrival time from the node onward, and a transmission control unit to control the transmission timing of the distribution data to at least one of the nodes based on the arrival times from the home node onward for each of the nodes.

Abstract: A method of mobile communication at a base station includes transmitting to a mobile station, identifying information for multicast data to be transmitted to the mobile station and transmitting the multicast data on a shared channel to the mobile station, wherein the data is identified by the information.

Abstract: An information distribution apparatus which is connected to each of a plurality of communication systems for performing radio communication with a mobile terminal through a network by using each of a plurality of communication methods having a range in which available frequencies overlap and manages information on communication environments of the communication systems.

Abstract: A mobile terminal includes a reception unit to receive, from at least one of a plurality of communication systems, an initial beacon containing information for establishing communication according to each of the plurality of communication methods, a request unit to generate a request by use of the initial beacon to transmit the request to the at least one of the plurality of communication systems, and a determination unit to determine, based on information as a response to the request, the communication method and the frequency band, which are to be used in a time zone by the mobile terminal.

Abstract: A controller which is assigned with the wireless resources for a plurality of wireless zones and a plurality of wireless base stations communicably connected to the controller, wherein the controller is operable to assign a part of the assigned wireless resources to the wireless zone formed by any of the wireless base stations. According to this, it is possible to introduce and run a great number of wireless base stations at a low cost without increasing or modifying the number of the superordinate devices such as RNC.

Abstract: It administers a plurality of wireless base stations grouped into a plurality of groups, and performs the processing about the management, control and maintenance of the wireless base stations selectively for each of the groups. This enables the efficient management, control and maintenance processing of the wireless base stations.

Abstract: A base station accommodation method and mobile communication system which allows the installation of many micro-miniature BTS devices are provided. The mobile communication system includes a plurality of base stations which accommodate a plurality of mobile terminals respectively; a plurality of first base station control devices, each of which accommodates a predetermined number of base stations out of the plurality of base stations; and a second base station control device which accommodates the plurality of first base station control devices, wherein each of the plurality of first base station control devices comprises, for supporting information identifying a mobile terminal, a mobile terminal data base to store identification information which identifies a base station to which the mobile terminal is subordinate, and a station data base to store an address of the base station.

Abstract: A data-cache apparatus for providing a data-cache function to a radio communications system is disclosed. The data-cache apparatus includes a data distinguishing unit (310) to distinguish an attribute of data requested by a mobile station, a cache memory (340) that temporarily stores data provided to a mobile station, and a data request processing unit (320 and 330) to acquire requested data from the cache memory or an external server based on a result of distinction carried out by the data distinguishing unit. The data request processing unit performs operations of searching for the requested data in the cache memory, and storing the acquired data in the cache memory.

Abstract: A mobile station used in a mobile communication system having a base station, the mobile station comprises a receiver which receives first identification information and second identification information, and receives first information using the first identification information and second information using the second identification information, wherein the first information includes identification information same as the first identification and the second information includes identification information same as the second identification information.

Abstract: A mobile communication system includes a mobile communication network connected to a core network (CN) and a plurality of radio network nodes included in the mobile communication network (RAN). Network resources for a data flow between a data transmission node and a data reception node that passes through the CN and RAN are reserved on the basis of RSVP. A region for refreshing a reservation state of network resources concerning the flow is divided into a CN side and an RAN side by taking a predetermined radio network node through which the flow passes as a boundary. Refreshment on the RAN side is conducted with a frequency higher than that of refreshment on the CN side.

Abstract: A mobile communication system includes a radio network control apparatus having inside a function block for processing a downlink shared channel and table means for storing various setting information related to the downlink shared channel communication and the downlink shared channel multi-cast communication. According to the information, a multi-cast communication (including uni-cast communication) is realized by using the downlink shared channel for one or more mobile apparatuses. Moreover, a base station has a function to transmit the downlink shared channel data and signaling data received from a radio network control apparatus, to a mobile apparatus via a radio line. Furthermore, it is possible to multi-cast data selectively to a particular mobile apparatus being call-connected.

Abstract: A base station comprises a transmitter configured to transmit first data to a mobile station and to transmit second data to a plurality of base stations via a shared channel, wherein the first data includes unicast data and identification information assigned to the mobile station and the second data includes multicast data and identification information of multicast which is identical to identification information of multicast assigned to the plurality of mobile stations.

Abstract: A mobile terminal UE accesses a CN and utilizes the Internet via a base station Node-B. When riding an electric train, the mobile terminal UE receives a disembarkation notification and an embarkation notification from a RFID tag writer equipped on a train, and notifies the base station Node-B that the terminal is on-board the train. While on-board the train, the terminal accesses an in-vehicle AP by employing a WLAN, Bluetooth, or similar system, and the in-vehicle AP communicates with the base station Node-B. This configuration enables the in-vehicle AP to handle all of the mobile devices existing on a train in a centralized manner, thereby eliminating the need for each of the mobile devices to individually access the base station Node-B.

Abstract: An algorithm in a multi-core processor having a plurality of cores for deciding processing allocation to each core to distribute the processing load thereof, and an efficient processing allocation algorithm simplified for software engineers are established. In order to achieve the above processing load distribution, the multi-core processor includes a plurality of basic modules divided into minimum configuration units, each having a uniform input/output format interface, so as to perform required processing contents in the overall processor. As an initial allocation, the above plurality of basic modules are allocated in distribution to the above plurality of cores, and subsequently, based on functional information of each core, the above plurality of initially allocated basic modules are relocated either periodically or at appropriate timing.

Abstract: A data center includes an individual storage unit having storage areas for respective user apparatuses, a shared storage unit having a storage area for sharing by the user apparatuses, a unit configured to store data received from an external node in one of the individual storage unit and the shared storage unit that is selected according to predetermined criteria, a unit configured to generate a data arrangement list according to statistics of the received data and predetermined cache data arrangement conditions, and a unit configured to transmit an instruction signal to at least one of the shared storage unit and the individual storage unit according to the data arrangement list to cause data stored in the at least one of the shared storage unit and the individual storage unit to be transferred to a cache server provided on a core network or on a radio access network.

Abstract: A mobile equipment makes a connection setting by setting a connection to a base station apparatus, and after a communication with the base station apparatus is disconnected, makes a re-connect request to a base station apparatus that is capable of continuing the communication. The mobile equipment is allocated with a mobile equipment identifier for identifying the mobile equipment when making the connection setting, and is notified of the mobile equipment identifier and an address of a network layer of the base station apparatus to which the connection setting is made. The mobile equipment includes a connection re-establishment message processor to generate a re-connect request that includes the address and the mobile equipment identifier, and to send the re-connect request to the base station apparatus that is capable of continuing the communication, and a connection control unit to re-establish the connection to the base station apparatus that is capable of continuing the communication.

Abstract: A packet transferring/transmitting method is provided for use in a mobile communication system 50. In this packet transferring/transmitting method, an upper node 1 determines the implementation of handover (determination step), and a handover addressing node 2 transfers, of a plurality of packets, a non-transmitted residual packet to a handover addressed node 3, and the upper node 1 transmits a new packet to the handover addressed node 3 (transfer/transmission step). This enables maintaining the number of users to be accommodated while securing a wide bandwidth, sharing a line with high efficiency at soft handover, avoiding data residual in the case of the employment of variable communication rate, and preventing an increase in retransmission.

Abstract: A mobile communication system includes a radio network control apparatus having inside a function block for processing a downlink shared channel and table means for storing various setting information related to the downlink shared channel communication and the downlink shared channel multi-cast communication. According to the information, a multi-cast communication (including uni-cast communication) is realized by using the downlink shared channel for one or more mobile apparatuses. Moreover, a base station has a function to transmit the downlink shared channel data and signaling data received from a radio network control apparatus, to a mobile apparatus via a radio line. Furthermore, it is possible to multi-cast data selectively to a particular mobile apparatus being call-connected.

Abstract: A base station for mobile communication including a transmitter operable to transmit data to a mobile station includes a first transmitting unit operable to transmit to a mobile station, identifying information for multicast data to be transmitted on a shared channel to the mobile station and a second transmitting unit operable to transmit the data on the shared channel to the mobile station, wherein the data is identified by the information transmitted.

Abstract: To provide a technique of making it possible to shorten a time taken by channel switching. Further, to provide a technique of enabling simplification of a channel switching procedure. A radio network controller for assigning, to each wireless terminal connected to a wireless network, one of an individual channel exclusively used by the wireless terminal and a common channel shared with at least one wireless terminal different from the wireless terminal as a communication channel, includes: a determination portion for determining that an individual channel is to be assigned to a wireless terminal; and an assignment portion for, when the assignment of the individual channel has been determined, assigning an individual channel resource secured and held before the determination to the wireless terminal.