Abstract: In Inter-eNB handover with “full configuration”, UL-PDCP-PDUs are handled appropriately. A mobile communication method according to the present invention includes, in Inter-eNB handover of a mobile station UE from a radio base station eNB#1 to a radio base station eNB#2, the step of causing the radio base station eNB#1 to discard all the UL-PDCP-PDUs having been successfully received, if the radio base station eNB#2 instructs the mobile station UE to once delete all the configuration set between the mobile station UE and the radio base station eNB#1.

Abstract: In Inter-eNB handover with “full configuration”, UL-PDCP-PDUs are handled appropriately. A mobile communication method according to the present invention includes, in Inter-eNB handover of a mobile station UE from a radio base station eNB#1 to a radio base station eNB#2, the step of causing the radio base station eNB#1 to discard all the UL-PDCP-PDUs having been successfully received, if the radio base station eNB#2 instructs the mobile station UE to once delete all the configuration set between the mobile station UE and the radio base station eNB#1.

Abstract: In operation control for a femto base station apparatus, file updating is performed only for an apparatus needing updating only when needed to prevent the bandwidth of the network from being narrowed. Version information of a file necessary for the operation control for a femto base station apparatus is obtained before performing the operation control. Then, it is confirmed whether or not the obtained version information matches the version information of the file stored in the storage unit. The operation control is performed when matching is confirmed. Contrarily, a version of the file necessary for the operation control is obtained and the file updating is performed when a version confirming unit confirms mismatching of the version information.

Abstract: A mobile communication system includes a first radio control device that manages a first cell, a second radio control device that manages a second cell, and a third radio control device. The second cell is set as a handover destination cell of the first cell. The third radio control device manages the second cell as a redundant configuration of the second radio control device. The third radio control device notifies the first radio control device of the third radio control device managing the second cell as the redundant configuration of the second radio control device. The first radio control device sets so that the third radio control device manages the second cell as the redundant configuration of the second radio control device.

Abstract: A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; and transmitting, from the second radio access apparatus to a mobile station (UE), transfer downlink data which is transferred from the first radio access apparatus and to which the specific information is added, before new downlink data transmitted from the gateway apparatus (S-GW).

Abstract: Provided is a network device capable of achieving low power consumption of a call control card and suppressing a failure of the call control card. A network device 20 includes a selection unit 23 that selects a call control card, for which a power supply is to be disconnected, from a plurality of call control cards, and a power saving control unit 24 that disconnects the power supply of the call control card selected by the selection unit 23. The power saving control unit 24 reduces a margin set in a call control cards not selected by the selection unit 23 in response to the disconnection of the power supply of the call control card selected by the selection unit 23 to thereby increase the number of operational connection calls set in the call control card not selected by the selection unit 23.

Abstract: A mobile communication system includes a first radio control device that manages a first cell, a second radio control device that manages a second cell, and a third radio control device. The second cell is set as a handover destination cell of the first cell. The third radio control device manages the second cell as a redundant configuration of the second radio control device. The third radio control device notifies the first radio control device of the third radio control device managing the second cell as the redundant configuration of the second radio control device. The first radio control device sets so that the third radio control device manages the second cell as the redundant configuration of the second radio control device.

Abstract: A second communication system starts transmission of direct data received from a core network apparatus without waiting to receive an end marker when the end marker indicating the last forwarding data forwarded from the first communication system is not received within an end marker waiting period.

Abstract: A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; and transmitting, from the second radio access apparatus to a mobile station (UE), transfer downlink data which is transferred from the first radio access apparatus and to which the specific information is added, before new downlink data transmitted from the gateway apparatus (S-GW).

Abstract: A mobile communication system having a first communication system and a second communication system forwards forwarding data from the first communication system to the second communication system when switching from the first communication system to the second communication system is determined, the forwarding data being a data that the first communication system has already received from a core network device. A network device transmitting direct data to a mobile communication terminal via the second communication system is configured to count the number of switching times that the switching from the first communication system to the second communication system has been determined, for every user. The network device is configured to count the number of successful reception times that information identifying a user has been received via a forwarding path of the forwarding data, for every user.

Abstract: A radio network controller activates a signal transmission suppression timer to suppress transmission of a congestion signal, when a new radio base station is added as a radio base station with which the radio terminal is to communicate, and suspends the transmission of the congestion signal to the radio base stations until the signal transmission suppression timer expires.

Abstract: A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; and transmitting, from the second radio access apparatus to a mobile station (UE), transfer downlink data which is transferred from the first radio access apparatus and to which the specific information is added, before new downlink data transmitted from the gateway apparatus (S-GW).

Abstract: A second communication system starts transmission of direct data received from a core network apparatus without waiting to receive an end marker when the end marker indicating the last forwarding data forwarded from the first communication system is not received within an end marker waiting period.

Abstract: A mobile communication system having a first communication system and a second communication system forwards forwarding data from the first communication system to the second communication system when switching from the first communication system to the second communication system is determined, the forwarding data being a data that the first communication system has already received from a core network device. A network device transmitting direct data to a mobile communication terminal via the second communication system is configured to count the number of switching times that the switching from the first communication system to the second communication system has been determined, for every user. The network device is configured to count the number of successful reception times that information identifying a user has been received via a forwarding path of the forwarding data, for every user.

Abstract: A network apparatus having a plurality of call control cards, comprising: a selection unit configured to select at least one call control card from among the plurality of call control cards, when the number of connected calls controlled by the whole of the plurality of call control cards is less than a first threshold value; and a power saving control unit configured to cause the call control card selected by the selection unit to shift to a cutoff ready state in which allocation of a new call is restricted.

Abstract: A radio network controller 300 includes an RLC reset detection unit configured to detect a transmission disabling event during which transmission of data units to the mobile station via the radio link control layer is disabled, a list acquisition unit 309 configured to acquire a reception status list L1 allowing identification of a reception unconfirmed data unit which is a data having no confirmation of reception by a mobile station and a transmission control unit 311 configured to select the reception unconfirmed data unit on the basis of the reception status list L1 and to transmit the reception unconfirmed data unit thus selected and a data unit not yet transmitted to the mobile station, to the mobile station after the transmission disabling event is completed.

Abstract: A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; and transmitting, from the second radio access apparatus to a mobile station (UE), transfer downlink data which is transferred from the first radio access apparatus and to which the specific information is added, before new downlink data transmitted from the gateway apparatus (S-GW).

Abstract: A radio network controller activates a signal transmission suppression timer to suppress transmission of a congestion signal, when a new radio base station is added as a radio base station with which the radio terminal is to communicate, and suspends the transmission of the congestion signal to the radio base stations until the signal transmission suppression timer expires.