Abstract: A communication path switching system including a wireless base station having a function of wireless communication with a mobile station and a function of relaying data transmitted from the mobile station over a wireless communication path; and plural transmission apparatuses having a function of wired communication with the wireless base station and capable of establishing respectively a wired communication path to be used to relay the data transmitted from a mobile station toward another mobile station. One wired communication path from the wireless base station to one transmission apparatus is switched to another wired communication path from the wireless base station to another transmission apparatus without re-establishing a wireless communication path between the mobile station and the wireless base station.

Abstract: The object of the present invention is to provide a radio access network system which can adapt to an environment in each network domain, and can carry out the priority transmission control of the IP packets in consideration of traffic requirements. The control apparatus 3 has a priority information setter configured to set priority information for determining a priority of the packet to be transferred in a transfer path set in the network, and a packet processor configured to determine the priority of the received packet in accordance with the priority information, and to add the priority to the received packet.

Abstract: A mobile communication system includes an extension transmission/reception server configured to transmit/receive user data transmitted/received between mobile stations to/from a base station by using an extension transmission/reception transmitting/receiving the data within a radio access network, and the base station configured to transmit/receive the user data to/from the extension transmission/reception server.

Abstract: A mobile communication system includes a first base station configured to be controlled by a first radio network controller, and provide an address of an extension transmission/reception device to user data received from a first mobile station, and the extension transmission/reception device configured to be controlled by the first radio network controller or a different second radio network controller, and provide an address of a second base station, which is controlled by the second radio network controller, to user data received from the first base station.

Abstract: A communication path switching system comprises a wireless base station (21) having a function of wireless communication with a mobile station (11) and a function of relaying data transmitted from the mobile station over a wireless communication path; and plural transmission apparatuses (41, 841) having a function of wired communication with the wireless base station and capable of establishing respectively a wired communication path to be used to relay the data transmitted from a mobile station toward another mobile station. One wired communication path from the wireless base station (21) to one transmission apparatus (841) is switched to another wired communication path from the wireless base station (21) to another transmission apparatus (41) without re-establishing a wireless communication path between the mobile station and the wireless base station.

Abstract: An apparatus and method prevent an out-of-sync state of clocks from occurring in an IP network or an IP-based radio access network in which network fluctuation delays occur. A synchronous server includes a clock generator configured to periodically generate a clock and a synchronous message transmitter configured to generate a synchronous message for notifying information regarding the generated clock, and to transmit the generated synchronous message to the node using an IP packet. The node includes a time calculator configured to obtain a time of receiving the synchronous message and a clock correction processor configured to calculate a clock correction value in accordance with the time of receiving the synchronous message and the information regarding the clock notified by the synchronous message, and to correct a generated timing of a clock in the node in accordance with the clock correction value.

Abstract: The present invention includes a RAN connection receiving section, an IP packet processing section, and a local content server. The RAN connection receiving section receives content request information from a mobile terminal. When a RAN identifier and an IP address included in the content request information are identified in a set table based on the content request information received by the RAN connection receiving section, the IP packet processing section transfers the content request information to the identified IP address. The local content server delivers content information corresponding with to the content request information to the mobile terminal.

Abstract: The object of the present invention is to provide a radio access network system for properly distributing loads and functions of the control plane function and a user plane function of a control apparatus, thus enabling the addition of only a necessary function when a radio access network is expanded. The radio access network system comprises a control server 1 configured to manage a configuration of a radio access network including a base station 3, and to set a transfer path for a packet in accordance with the configuration, and a data server 2 configured to manage a resource of a base station 3 located in the transfer path set by the control server 1.

Abstract: An object of the present invention is to provide a resource allocation control device, resource allocation control method and a mobile communication system, which can sufficiently decrease the control load and the delay when a RAN and IP network are connected. The mobile communication system is comprised of the RAN and the IP network which are connected via the resource allocation control device. The RAN is comprised of a plurality of BTSs and BSCs where MS can be connected, and the IP network has an IP transfer device. The resource allocation control device which intervenes between the RAN and the IP network, comprises a request acceptance section, correspondence processing section, allocation data base and allocation/assignment processing section, which are sequentially connected, and each of the BSC and the IP transfer device is connected to the request acceptance section and to the allocation/assignment processing section.

Abstract: A mobile communication system includes a first base station configured to be controlled by a first radio network controller, and provide an address of an extension transmission/reception device to user data received from a first mobile station, and the extension transmission/reception device configured to be controlled by the first radio network controller or a different second radio network controller, and provide an address of a second base station, which is controlled by the second radio network controller, to user data received from the first base station.

Abstract: A mobile communication system includes an extension transmission/reception server configured to transmit/receive user data transmitted/received between mobile stations to/from a base station by using an extension transmission/reception transmitting/receiving the data within a radio access network, and the base station configured to transmit/receive the user data to/from the extension transmission/reception server.

Abstract: The object of the present invention is to provide a radio access network system for properly distributing loads and functions of the control plane function and a user plane function of a control apparatus, thus enabling the addition of only a necessary function when a radio access network is expanded. The radio access network system comprises a control server 1 configured to manage a configuration of a radio access network including a base station 3, and to set a transfer path for a packet in accordance with the configuration, and a data server 2 configured to manage a resource of a base station 3 located in the transfer path set by the control server 1.

Abstract: The present invention includes a RAN connection receiving section, an IP packet processing section, and a local content server. The RAN connection receiving section receives content request information from a mobile terminal. When a RAN identifier and an IP address included in the content request information are identified in a set table based on the content request information received by the RAN connection receiving section, the IP packet processing section transfers the content request information to the identified IP address. The local content server delivers content information corresponding with to the content request information to the mobile terminal.

Abstract: The object of the present invention is to prevent an out-of-sync state of clocks from occurring in an IP network or an IP-based radio access network in which network fluctuation delays occur. The synchronous server includes a clock generator 11 configured to periodically generate a clock and a synchronous message transmitter 14 and 15 configured to generate a synchronous message for notifying information regarding the generated clock, and to transmit the generated synchronous message to the node using an IP packet. The node includes a time calculator 18 configured to obtain a time of receiving the synchronous message and a clock correction processor 20 configured to calculate a clock correction value in accordance with the time of receiving the synchronous message and the information regarding the clock notified by the synchronous message, and to correct a generated timing of a clock in the node in accordance with the clock correction value.

Abstract: An object of the present invention is to provide a resource allocation control device, resource allocation control method and a mobile communication system, which can sufficiently decrease the control load and the delay when a RAN and IP network are connected. The mobile communication system is comprised of the RAN and the IP network which are connected via the resource allocation control device. The RAN is comprised of a plurality of BTSs and BSCs where MS can be connected, and the IP network has an IP transfer device. The resource allocation control device which intervenes between the RAN and the IP network, comprises a request acceptance section, correspondence processing section, allocation data base and allocation/assignment processing section, which are sequentially connected, and each of the BSC and the IP transfer device is connected to the request acceptance section and to the allocation/assignment processing section.

Abstract: The object of the present invention is to provide a radio access network system which can adapt to an environment in each network domain, and can carry out the priority transmission control of the IP packets in consideration of traffic requirements. The control apparatus 3 has a priority information setter configured to set priority information for determining a priority of the packet to be transferred in a transfer path set in the network, and a packet processor configured to determine the priority of the received packet in accordance with the priority information, and to add the priority to the received packet.

Abstract: The object of the present invention is to provide a radio communication system which can reduce the load on the radio network controller 50 during multicast communication, and a mobile station 11 and the radio network controller 50 which can be used in the above radio communication system. The radio network controller 50 comprises a control signal transmitter 50b configured to divide a multicast group into subgroups, to divide a control signal for the multicast group into control signals for the subgroups, and to transmit the control signals for the subgroups to the base station 10. The mobile station 11 comprises a response signal creator 11c configured to create a response signal to the control signals for the subgroups, a transmission timing detector 11d configured to detect a transmission timing from the control signals for the subgroups, and a response signal transmitter 11b configured to transmit the response signal to the base station 10 with the transmission timing.

Abstract: The contents distribution station includes channel allocation unit which judges whether the number of contents reception stations receiving a certain contents is large or small. When the number is large, a broadcast channel is allocated to a reception station newly making a request for distribution of contents. When the number is small, an occupied channel is allocated to the reception station newly making a request for distribution of contents.

Abstract: A mobile communications apparatus includes a receiving processor for intermittently receiving a radio signal, and for extracting from the radio signal location information about a reference point in a visited cell; a distance calculator for obtaining a distance from the mobile communications apparatus to the reference point; a distance comparator for comparing two different distances obtained by the distance calculator; and an intermittent ratio controller for controlling an intermittent ratio of the receiving processor in response to an output of the distance comparator. This makes it possible for the mobile communications apparatus to control the intermittent ratio on the basis of the moving direction relative to the cell.