Abstract: Provided are a mobile communication system, a base station, a communication method and a program whereby respective cells can be changed to an energy saving cell or a Compensation Cell, while minimizing the occurrence of interference. The mobile communication system according to the present invention has a base station (11) having a cell (1), and a base station (20) having a cell (2). Furthermore, the base station (20) according to the present invention sends first information indicating that preparations for change of the cell (1) to an energy saving state have been completed, to the base station (20).

Abstract: A mobile communication system of the present invention is a mobile communication system including a mobile station, base stations each of which forms a cell and transmits MBMS data to the mobile station existing in the cell, control stations each of which controls a base station connected thereto, and further including a core network node that instructs each of the control stations connected thereto with respect to the frequency and timing for transmitting MBMS data in the cell, wherein each of the control stations establishes time synchronization with another control station and instructs the connected base station to set the cell to the frequency designated by the core network node and transmits, to the connected base station, the MBMS data in accordance with the transmission timing designated by the core network node and the mobile station then receives the MBMS data.

Abstract: A processing apparatus operates aiming to realize handover to each mobile station while reducing a failure rate of the handover even when PSC Confusion is generated. More specifically, when a connection of the mobile station is switched from a first base station to a second base station, the processing apparatus determines the second base station by selecting from a plurality of base stations according to connection history information indicating a success or a failure of past switching of the connection from the first base station to at least one of the plurality of base stations.

Abstract: A processing apparatus operates aiming to realize handover to each mobile station while reducing a failure rate of the handover even when PSC Confusion is generated. More specifically, when a connection of the mobile station is switched from a first base station to a second base station, the processing apparatus determines the second base station by selecting from a plurality of base stations according to connection history information indicating a success or a failure of past switching of the connection from the first base station to at least one of the plurality of base stations.

Abstract: A mobile communication system includes a radio base stations and further includes a determination unit for determining, on the basis of attribute information of the radio base stations, whether to establish a logical interface between the radio base stations. Since it is arranged that the determination unit determines, on the basis of attribute information of the radio base stations, whether to establish a logical interface between the radio base stations, the establishment of unnecessary logical interface (i.e., logical interface for which the necessity of maintenance is low) can be suppressed.

Abstract: A mobile communication system includes terminals and a plurality of base stations that use scrambling codes to perform radio communication with the terminals. Each of the plurality of base stations transmits to neighboring base stations information of the range of scrambling codes for uplink that is reserved in its own station, and when determining the range of scrambling codes for uplink to be reserved in its own station, receives from neighboring base stations information of the ranges of scrambling codes for uplink reserved in the neighboring base stations.

Abstract: A processing apparatus operates aiming to realize handover to each mobile station while reducing a failure rate of the handover even when PSC Confusion is generated. More specifically, when a connection of the mobile station is switched from a first base station to a second base station, the processing, apparatus determines the second base station by selecting from a plurality of base stations according to connection history information indicating a success or a failure of past switching of the connection from the first base station to at least one of the plurality of base stations.

Abstract: A processing apparatus operates aiming to realize handover to each mobile station while reducing a failure rate of the handover even when PSC Confusion is generated. More specifically, when a connection of the mobile station is switched from a first base station to a second base station, the processing apparatus determines the second base station by selecting from a plurality of base stations according to connection history information indicating a success or a failure of past switching of the connection from the first base station to at least one of the plurality of base stations.

Abstract: Each of a plurality of wireless base stations includes: a storage unit that stores flag that indicates whether or not its own station is master base station; a determination unit that determines a wireless parameter set that is set in channels used for transmission of MBMS data; a notification unit that, when its own station is master base station, reports the wireless parameter set determined in the determination unit to other wireless base stations; an acquisition unit that, when its own station is not master base station, acquires a wireless parameter set reported from master base station; and a setting unit that, when its own station is master base station, sets the wireless parameter set determined in the determination unit in the channels; and when its own station is not master base station, sets the wireless parameter set acquired in the acquisition unit to the channels.

Abstract: Provided is an HNB gateway device capable of, while in an operation in a sleep mode, deactivating function units other than functions units associated with a mode check message and a sleep mode release request message from another HNB-GW, and thereby enabling a power saving operation. An HNB gateway device (2) includes a function to obtain a usage rate of the HNB gateway device, relays signals between a switching center and an HNB, and transits to a sleep mode when the usage rate reaches or falls below a predetermined value. The HNB gateway device includes means (HNB-GW list management unit 23) for changing, upon transition to the sleep mode, an HNB gateway list in the HNB performing HNB registration on the HNB gateway device using RPC:SetParameterValues from an HMS.

Abstract: In order to change control over a user equipment within a femtocell in accordance with a change in camping of the user equipment, a communication system includes a femto base station (10) that provides a femtocell includes notification destination setting means (20) for setting, in the femto base station (10), a notification destination to be notified of a change in camping of a user equipment (30) on the femtocell. The femto base station (10) notifies the set notification destination of the change in camping of the user equipment (30), upon detection of the change in camping.

Abstract: A processing apparatus operates aiming to realize handover to each mobile station while reducing a failure rate of the handover even when PSC Confusion is generated. More specifically, when a connection of the mobile station is switched from a first base station to a second base station, the processing apparatus determines the second base station by selecting from a plurality of base stations according to connection history information indicating a success or a failure of past switching of the connection from the first base station to at least one of the plurality of base stations.

Abstract: A mobile communication system includes terminals and a plurality of base stations that use scrambling codes to perform radio communication with the terminals. Each of the plurality of base stations transmits to neighboring base stations information of the range of scrambling codes for uplink that is reserved in its own station, and when determining the range of scrambling codes for uplink to be reserved in its own station, receives from neighboring base stations information of the ranges of scrambling codes for uplink reserved in the neighboring base stations.

Abstract: Each of a plurality of wireless base stations includes: a storage unit that stores flag that indicates whether or not its own station is master base station; a determination unit that determines a wireless parameter set that is set in channels used for transmission of MBMS data; a notification unit that, when its own station is master base station, reports the wireless parameter set determined in the determination unit to other wireless base stations; an acquisition unit that, when its own station is not master base station, acquires a wireless parameter set reported from master base station; and a setting unit that, when its own station is master base station, sets the wireless parameter set determined in the determination unit in the channels; and when its own station is not master base station, sets the wireless parameter set acquired in the acquisition unit to the channels.

Abstract: A mobile communication system according to the present invention is a mobile communication system including base stations each of which forms a cell and transmits MBMS data to a mobile station existing in the cell, and control stations each of which controls the base station connected thereto, wherein the control stations include at least a control station and a second control station that determines a frequency and timing for transmitting the MBMS data in the cell and instructs the first control station of the determined frequency and timing, and wherein each of the first and second control stations establishes time synchronization with another control station and instructs the connected base station to set the cell to the frequency determined by the second control station and transmits the MBMS data to the connected base station in accordance with the transmission timing determined by the second control station.

Abstract: A mobile communication system of the present invention is a mobile communication system including a mobile station, base stations each of which forms a cell and transmits MBMS data to the mobile station existing in the cell, control stations each of which controls a base station connected thereto, and further including a core network node that instructs each of the control stations connected thereto with respect to the frequency and timing for transmitting MBMS data in the cell, wherein each of the control stations establishes time synchronization with another control station and instructs the connected base station to set the cell to the frequency designated by the core network node and transmits, to the connected base station, the MBMS data in accordance with the transmission timing designated by the core network node and the mobile station then receives the MBMS data.

Abstract: A radio communication system includes a user apparatus, a base transceiver station and a radio network controller. The base transceiver station requests the user apparatus to resend data when the base transceiver station does not receive the data, and counts the number of sending of the data sent from the user apparatus. The radio network controller receives, from the base transceiver station, the number of sending of the data sent from the user apparatus, and determines a target Signal to Interference Ratio (SIR) based on the number of sending of the data sent from the user apparatus.