Abstract: A network apparatus according to an embodiment comprises: a storage unit configured to store apparatus information in which information on a model identifier of a terminal apparatus and use authentication information indicating that the terminal apparatus is granted a use authentication by a predetermined network operator are associated; a receiver configured to receive, from another network apparatus, information on a model identifier of a user terminal accessing a network managed by the predetermined network operator; and a controller configured to notify, based on the information on the model identifier of the user terminal and the apparatus information, the other network apparatus of information for determining whether or not to provide a communication service to the user terminal.

Abstract: A network apparatus according to an embodiment comprises: a storage unit configured to store apparatus information in which information on a model identifier of a terminal apparatus and use authentication information indicating that the terminal apparatus is granted a use authentication by a predetermined network operator are associated; a receiver configured to receive, from another network apparatus, information on a model identifier of a user terminal accessing a network managed by the predetermined network operator; and a controller configured to notify, based on the information on the model identifier of the user terminal and the apparatus information, the other network apparatus of information for determining whether or not to provide a communication service to the user terminal.

Abstract: A communication control method is a method in which a neighboring cell #1 supplements a coverage of an OFF target cell #2 by increasing transmission power of the neighboring cell #1, when setting the OFF target cell #2 to an OFF state. The communication control method comprises: a step A of informing, by a UE 100 connected to the OFF target cell #2, the OFF target cell #2 of neighboring cell received power that is received power of a radio signal from the neighboring cell #1; and a step B of deciding, by a server 400 that acquires the neighboring cell received power via the OFF target cell #2, on the basis of the acquired neighboring cell received power, an amount of increase in transmission power of the neighboring cell #1.

Abstract: A user terminal includes a controller containing at least one processor and at least one memory, and configured to attempt to connect to a wireless local area network (WLAN) while the user terminal has a radio resource control (RRC) connection with a cellular base station. The controller is configured to: receive an identifier of a WLAN access point and information used to an authentication processing of the WLAN, from the cellular base station; in response to detecting the WLAN access point corresponding to the received identifier, perform a WLAN connection procedure with the detected WLAN access point, the WLAN connection procedure including the authentication processing; and in response to failing in the WLAN connection procedure, notify the cellular base station of report information related to the detected WLAN access point.

Abstract: A communication control method is a method in which a neighboring cell #1 supplements a coverage of an OFF target cell #2 by increasing transmission power of the neighboring cell #1, when setting the OFF target cell #2 to an OFF state. The communication control method comprises: a step A of informing, by a UE 100 connected to the OFF target cell #2, the OFF target cell #2 of neighboring cell received power that is received power of a radio signal from the neighboring cell #1; and a step B of deciding, by a server 400 that acquires the neighboring cell received power via the OFF target cell #2, on the basis of the acquired neighboring cell received power, an amount of increase in transmission power of the neighboring cell #1.

Abstract: A communication control method that is applied to a mobile communication system including an X2 interface established between a first base station and a second base station, comprises: a step A of transmitting, by the first base station, a first X2 message to the second base station through the X2 interface. In the step A, the first base station adds first measurement information for measuring communication delay between the first base station and the second base station to the first X2 message, and transmits the first X2 message.

Abstract: The eNB 1 and the UE 2 establish the first bearer 11 between the eNB 1 and the UE 2 at the RRC layer, and the eNB 1 and the MME 3 establish the second bearer 12 between the eNB 1 and the MME 3 at the S1-AP layer. The OAM 4 measures the time length (TTL) of packet transfer between the eNB 1 and the UE 2, based on the transmission state of packets transmitted on the first bearer 11, and also measures the time length of packet transfer between the eNB 1 and the MME 3, based on the transmission state of packets transmitted on the second bearer 12.

Abstract: A radio communication system comprises: a radio base station, a terminal device, and a plurality of relay devices that relay radio communication between the radio base station and the terminal device. The plurality of relay devices create communication quality information in radio communication between the relay devices and the radio base station. The terminal device preferentially connects to the relay device having the best communication quality based on each of the communication quality information.

Abstract: A communication control method that is applied to a mobile communication system including an X2 interface established between a first base station and a second base station, comprises: a step A of transmitting, by the first base station, a first X2 message to the second base station through the X2 interface. In the step A, the first base station adds first measurement information for measuring communication delay between the first base station and the second base station to the first X2 message, and transmits the first X2 message.

Abstract: A radio communication system comprises: a radio base station, a terminal device, and a plurality of relay devices that relay radio communication between the radio base station and the terminal device. The plurality of relay devices create communication quality information in radio communication between the relay devices and the radio base station. The terminal device preferentially connects to the relay device having the best communication quality based on each of the communication quality information.

Abstract: The eNB 1 and the UE 2 establish the first bearer 11 between the eNB 1 and the UE 2 at the RRC layer, and the eNB 1 and the MME 3 establish the second bearer 12 between the eNB 1 and the MME 3 at the S1-AP layer. The OAM 4 measures the time length (TTL) of packet transfer between the eNB 1 and the UE 2, based on the transmission state of packets transmitted on the first bearer 11, and also measures the time length of packet transfer between the eNB 1 and the MME 3, based on the transmission state of packets transmitted on the second bearer 12.

Abstract: A BS 11 recognizes states of a first session and a second session and instructs an MS 12 to change a state of the first session via the second session when the BS 11 receives data for the first session from a network while the first session is in the sleep state and the second session is in the active state. When the MS 12 changes the first session to be in the active state before a lapse of predetermined time interval when receiving the instruction from the BS 11, the BS 11 transmits the data for the first session to the MS 12 via the first session changed to be in the active state.

Abstract: Disclosed is a radio terminal including: a message transmitter-receiver configured to transmit and receive an IEEE 802.21 message using a protocol of a layer lower than an IP layer to and from a target radio base station for handover before an IP address acquisition unit acquires a new IP address; and a quality measurement unit configured to measure a radio communication quality including at least one of transmission delay and jitter in a radio communication path between the radio terminal and the target radio base station by using the IEEE 802.21 message transmitted and received by the message transmitter-receiver.

Abstract: An authentication server according to the present invention performs authentication of a first access to the Internet via a base station, and stores a usable base station identifier identifying a radio base station usable by the radio terminal to access the Internet. When a base station identifier of a different base station being a handover candidate of the radio terminal matches the usable base station identifier stored in advance, the authentication server transmits an authentication request to an authentication server managing the different base station, the authentication request requesting authentication of a second access to the Internet via the different base station.

Abstract: A radio base station according the present invention communicates with a radio communication terminal which has established a connection. The radio base station includes: a task manager 131 configured to acquire communication capability information indicating processing capability of CPU; a load judging unit 132 configured to judge whether or not the communication capability information falls below a threshold; and a packet generator 134 and a communication processor 135 configured to transmit MOB_BSHO_REQ message requesting switching of a connection destination to a different radio base station to at least one of the radio communication terminals if judged that the communication capability information falls below the threshold.

Abstract: An authentication server according to the present invention performs authentication of a first access to the Internet via a base station, and stores a usable base station identifier identifying a radio base station usable by the radio terminal to access the Internet. When a base station identifier of a different base station being a handover candidate of the radio terminal matches the usable base station identifier stored in advance, the authentication server transmits an authentication request to an authentication server managing the different base station, the authentication request requesting authentication of a second access to the Internet via the different base station.

Abstract: A BS 11 recognizes states of a first session and a second session and instructs an MS 12 to change a state of the first session via the second session when the BS 11 receives data for the first session from a network while the first session is in the sleep state and the second session is in the active state. When the MS 12 changes the first session to be in the active state before a lapse of predetermined time interval when receiving the instruction from the BS 11, the BS 11 transmits the data for the first session to the MS 12 via the first session changed to be in the active state.

Abstract: Disclosed is a radio terminal including: a message transmitter-receiver configured to transmit and receive an IEEE 802.21 message using a protocol of a layer lower than an IP layer to and from a target radio base station for handover before an IP address acquisition unit acquires a new IP address; and a quality measurement unit configured to measure a radio communication quality including at least one of transmission delay and jitter in a radio communication path between the radio terminal and the target radio base station by using the IEEE 802.21 message transmitted and received by the message transmitter-receiver.

Abstract: A NHRP/MPOA (Next Hop Resolution Protocol/Multi-Protocol Over ATM (Asynchronous Transfer Mode)) system for automatically collecting, by using NHRP Extensions, the IP addresses of MPOA servers via which a Resolution Request is sequentially transferred is disclosed. The system includes an input unit or data inputting means and an output unit implemented by a display or a printer. A route search commanding unit analyzes a command received from the input unit or produces an address from a received packet. A receipt unit receives a Resolution Request from another MPS server or another MPC client. A packet handling unit analyzes the content of a received packet and executes necessary processing. A transmission unit sends a Resolution Request to another MPS server or another MPC client. A memory stores a routing table on a computer (router), network interface information and information relating to a computer (router) on which the MPS is mounted. A route displaying method is also disclosed.