Abstract: This mobile communication system has a portable terminal, a base station that wirelessly communicates with the portable terminal, a gateway device that connects the base station to a core network, and a core network device that is installed in the core network and that performs mobility management of the portable terminal. The core network device sends to the gateway device information for determining whether Selected Internet Protocol Traffic Offload (SIPTO) has been activated. The gateway device receives the information from the core network device.

Abstract: A wireless communication system includes a first NodeB that forms a cell; and a relay apparatus to which the first NodeB connects and which relays data transmitted and received between the first NodeB and a core network. The first NodeB broadcasts identification information on the relay apparatus to which the first NodeB connects.

Abstract: A mobile communication system includes a first Home Node B (HNB); a second HNB; and a HNB gateway (HNB-GW) that is connected to a core network, wherein the first HNB is configured to communicate with a user equipment (UE) before a relocation of intra HNB-GW in which the UE is relocated from the first HNB to the second HNB, wherein the second HNB is configured to communicate with a user equipment (LTE) after the relocation and send Iu-UP Initialization comprising an RFCI information to the HNB-GW during the relocation, and wherein the HNB-GW is configured to receive the Iu-UP Initialization.

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 core network node includes: a paging candidate storage unit that holds a candidate(s) of a base station(s) as a paging message transmission destination(s); a base station information storage unit that holds information about a communication function(s) of the candidate(s) of the base station(s); a paging destination selection unit that selects, when a certain mobile station is paged, a paging range from the candidate(s) of the base station(s), based on the communication function(s) of the candidate(s) of the base station(s); and a paging instruction unit that instructs a base station(s) corresponding to the selected range to perform paging.

Abstract: A base station apparatus (1) is configured to send a first information element to an inter-base-station gateway (3). The first information element explicitly or implicitly indicates whether a relay operation is necessary. The relay operation is an operation in which the inter-base-station gateway (3) relays a data packet destined for or sent from a radio terminal between the base station apparatus (1) and another base station (2). It is thus, for example, possible to contribute to enabling a base station or an inter-base-station gateway to select whether a relay operation by the inter-base-station gateway should be performed at the time of an inter-base-station handover.

Abstract: A wireless communication system includes a first NodeB that forms a cell; and a relay apparatus to which the first NodeB connects and which relays data transmitted and received between the first NodeB and a core network. The first NodeB broadcasts identification information on the relay apparatus to which the first NodeB connects.

Abstract: A wireless communication system includes a first NodeB that forms a cell; and a relay apparatus to which the first NodeB connects and which relays data transmitted and received between the first NodeB and a core network. The first NodeB broadcasts identification information on the relay apparatus to which the first NodeB connects.

Abstract: A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

Abstract: A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

Abstract: A wireless base station includes: a communication unit 101 configured to communicate with a mobile station which measures radio quality of a signal transmitted in each of a plurality of cells; an acquisition unit 102 configured to acquire load information related to a load of a network including a wireless base station forming the cell; and a control unit 103. The control unit 103 receives information indicating a measurement result of the radio quality of the signal transmitted in each of the plurality of cells and a state of a battery of the mobile station, from the mobile station via the communication unit, determines a signal, radio quality of which is to be measured by the mobile station, based on the measurement results of the radio qualities and the state of the battery of the mobile station, indicated in the information received, and the load information acquired by the acquisition unit, and notifies the signal determined to be measured to the mobile station via the communication unit.

Abstract: A radio communication system includes a relay apparatus (30) connected between a base station (40) and a base control station (20) and a location information control station (10), in which: the location information control station (10) includes: a request generation unit (11) for generating a location information request including regional information of a region for which the location information is requested; and a request transmission unit (12) for transmitting the location information request that has been generated to the base control station (20), and the base control station (20) includes: a request reception unit (21) for receiving the location information request transmitted from the location information control station (10); and a request transmission unit (22) for transmitting the location information request including the regional information in the location information request that has been received to the relay apparatus (30).

Abstract: A base station (103), which is connected to a gateway device (105), comprising: a transmission unit (202) that transmits an Old Transport Info to the gateway device, and the Old Transport Info is an information which is not used by the gateway device when a handover occurs.

Abstract: A gateway device (10) according to the present invention includes a memory (11) that stores information regarding an environment around a radio base station; a controller (12) that generates a message for paging a mobile station which camps on the radio base station to execute processing for determining information of a radio base station to which the message is transmitted based on the stored information; and a transmission unit (13) that transmits the message. Paging optimization is thus achieved by reducing the number of paging messages.

Abstract: A communication system is disclosed comprising a gateway connecting a source base station and a target base station. The gateway receives a message from the source base station initiating a handover of a mobile device from the source to the target base station. The received message comprises a security context (an NCC-KeNB pair and/or a KeNB*) for securing communications with the mobile device, and for deriving a further key for securing subsequent communications with the mobile device. The gateway generates and sends, to the target base station, a message requesting the target base station to carry out a handover, the message comprising the security context.

Abstract: A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

Abstract: A communication control method includes: transmitting, by a second radio base station (103) adjacent to a first radio base station (100), an attribute value relating to a second cell (102) under control of the second radio base station (103) to the first radio base station; receiving, by the first radio base station, the attribute value relating to the second cell; comparing, by the first radio base station, the attribute value relating to the second cell with an attribute value relating to a first cell under control of the first radio base station; and executing, by the first radio base station, processing for matching the attribute value relating to the second cell with the attribute value relating to the first cell in accordance with a predetermined criterion when the received attribute value relating to the second cell is different from the attribute value relating to the first cell.

Abstract: A mobile communication system includes a first Home Node B (HNB); a second HNB; and a HNB gateway (HNB-GW) that is connected to a core network, wherein the first HNB is configured to communicate with a user equipment (UE) before a relocation of intra HNB-GW in which the UE is relocated from the first HNB to the second HNB, wherein the second HNB is configured to communicate with a user equipment (UE) after the relocation and send Iu-UP Initialization comprising an RFCI information to the HNB-GW during the relocation, and wherein the HNB-GW is configured to receive the Iu-UP Initialization.

Abstract: A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

Abstract: A base station includes a storage unit stores a neighbour relation table and a processing unit. The processing unit receives service information of a neighbour cell to its own cell, the service information being transmitted by another base station forming the neighbour cell to the own cell, the service information including at least one of an information element indicating whether the another base station has a function of a wireless LAN (Local Area Network) base station and an information element indicating whether the neighbour cell is a cell for dynamically adding a communication capacity. The processing unit registers the service information of the neighbour cell with the neighbour relation table.