Ntt Docomo, Inc.

Fujitsu Corporation

Yasuhiro Kawabe

Kenichiro Aoyagi

Masafumi Masuda

Yuichiro Nakamura

Hideyuki Matsutani

Takaaki Sato

Hiroyuki Hosono

Katsuhiko Yamagata

Wuri Andarmawanti Hapsari

Yasuyuki Watanabe

Akira Ishii

Takefumi Yamada

Yusuke Sasaki

Hidehiko Oyane

Takeshi Kunugi

Tadashi Yamada

Reiko Hattori

Masayuki Matsubara

Takeshi Masubuchi

Ryoji Yamamoto

Masaaki Ohtake

Tsutomu Sugaya

Teruaki Hiraga

Atsuo Horibe

Masahiko Ogai

A base station includes a transceiver and a processor. The processor is configured to: in response to receiving a connection request from user equipment, causes a transceiver to transmit a message to a first management apparatus; and in response to receiving a reroute message to indicate a reroute from a first management apparatus to a second management apparatus, causes the transceiver to transmit Non Access Stratum (NAS) information in the reroute message to the second management apparatus. The message includes an identifier of the user equipment assigned by the base station. The base station is configured to perform a connection operation on the user equipment. The identifier of the user equipment assigned by the base station is configured in the reroute message without provision of an identifier of the user equipment assigned by the first management apparatus.

Base station, management apparatus and connection method

A controller in a mobile communication system includes a management unit () configured to manage a resource usage condition in the mobile communication system and a determination unit () configured to determine to which an idle state or a power saving state different from the idle state a user equipment () is to transition after completion of communication of a data signal depending on the resource usage condition, and the state determined by the determination unit () is indicated to the user equipment ().

Mobile communication system, controller and method

In a mobile communication method according to the present invention, in a communication start procedure of a mobile station camps on a femtocell, acquiring, by an exchange, a frequency of the femtocell and a femtocell ID for uniquely identifying the femtocell which are held in a controller, storing, by the exchangeand a home location register, the acquired frequency of the femtocell and the acquired femtocell ID in association with subscriber information of the mobile station UE, performing, by the exchangeand the home location register, location registration to register the mobile station UE for a location registration area to which the femtocell geographically overlaid with the macrocell belongs, in response to the received location registration request signal, in a release procedure of the radio connection after completion of the location registration, notifying, by the controller, the mobile station UE of the notified frequency of the femtocell notified by the exchange

Mobile communication method, control device, and exchange

A base station in a mobile communication system transmits and receives wireless signals with a user apparatus in a cell; in the case where the base station is connected to a communication network through a router, obtains an address of the router; periodically receives time information from a time information server through the communication network; stores in a memory unit the router's address and a current time indicated by the time information; and () in the case where a current-time-storing-is-stopped period is equal to or greater than a threshold value, or () in the case where the current-time-storing-is-stopped period is less than the threshold value and is equal to or greater than another threshold value, and an address just received from the router is different from the address stored in the memory unit, transmits a control signal for stopping the transmission of the wireless signal.

Base station in mobile communication system and wave stopping method

A mobile communication systemincludes a specific cell configured to allow a specific user to be provided with a service and to allow a non-specific user other than the specific user to be provided with a limited service. The mobile communication systemincludes a management unitconfigured to manage a presence state of the non-specific user in the specific cell in addition to a presence state of the specific user in the specific cell.

Mobile communication system, network device, and mobile communication method

The first communication system is configured to determine whether or not to provide information that instructs the UEto connect to the second communication system, based on a subscriber identifier allocated to the UE. The subscriber identifier is configured to identify whether or not the UEis allowed to utilize the second communication system.

Mobile communication system, radio control apparatus, core network apparatus, mobile communication terminal and mobile communication method

A controller in a mobile communication system includes a management unit () configured to manage a resource usage condition in the mobile communication system and a determination unit () configured to determine a timer value for determining a frequency of transmitting a state transition request signal for causing a user equipment to transition to a power saving state after completion of communication of a data signal depending on the resource usage condition, and the timer value determined by the determination unit () is broadcast to the user equipment.

A mobile communication method according to the present invention includes the steps of: after a mobile station UE having RRC connection with the radio network controller RNC gets out of the coverage of the mobile communication system of WCDMA scheme, performing location registration to the mobile communication system of LTE scheme, issuing a notification to the radio network controller RNC by the exchange apparatus SGSN upon reception of predetermined signal, the notification implying that the mobile station UE performs the location registration to the mobile communication system of LTE scheme; and the radio network controller RNC releasing the resources for RRC connection without transmitting a signal to release the resources to the mobile station UE in response to the notification from the exchange apparatus SGSN.

Mobile communication method and radio access network apparatus

A radio controllerof the present invention includes a threshold value holding unitconfigured to associate a traffic channel configuration with at least one threshold value and hold these associated traffic channel configuration and threshold value, a threshold value extraction unitconfigured to extract at least one threshold value associated with a traffic channel configuration of a mobile station and a threshold value determination unitconfigured to determine whether or not to change the traffic channel configuration of the mobile station by comparing the extracted threshold value with a communication state at a predetermined timing.

Radio controller and mobile communication method

A mobile communication method comprises a step of setting a restriction type by the femtocell radio base station #A in response to input of predetermined information to the femtocell radio base station #A, the restriction type indicating restricted processes to be applied to a mobile station UE belonging to the CSG #1 in the femtocell #1; a step B of notifying a mobile station UE in the femtocell #1 of the set restriction type by the femtocell radio base station #1; and a step of detecting processes restricted in the femtocell #1 on the basis of the notified restriction type, in a case where the mobile station UE belongs to the CSG #1.

Mobile communication method and radio base station

When receiving an extension connection request from a first mobile terminal, a first route selection device selects a first extension connection route from among a plurality of extension connection routes and transmits the type of the first extension connection route and calling-side address information used on the first extension connection route to a second route selection device. The second route selection device selects a second extension connection route from among the plurality of extension connection routes and transmits the type of the second extension connection route and called-side address information used on the second extension connection route to the first route selection device. If the second extension connection route coincides with the first extension connection route, an extension connection is established between the first mobile terminal and the second mobile terminal via the first extension connection route.

Extension connection method and route selection device

A mobile communication method includes: a step which establishes a second radio access link between a mobile station and a radio communication data combining device for 'an area limit service' via a radio base station for 'a public area service' when a first radio access link is established between the mobile station and the radio communication data combining device for &#x201c;the area limit service&#x201d; via the radio base station for &#x201c;the area limit service&#x201d;; and a step in which the radio communication data combining device for &#x201c;the area limit service&#x201d; combines the data for &#x201c;the area limit service&#x201d; transferred from the radio base station for &#x201c;the area limit service&#x201d; and the data for &#x201c;the area limit service&#x201d; transferred from the radio base station for &#x201c;the public area service.&#x201d;

A mobile communication method according to the present invention includes a step A of causing a mobile station in a standby mode in a first cell to transmit a communication start request signal, a step B of judging whether or not to measure communication quality of a second cell on the basis of judgment as to whether or not the particular service is provided in each of the cells and judgment as to whether or not communication quality of the second cell is included in the communication start request signal, the second cell overlaid by the first cell in a different frequency band and a step C of starting communication of the mobile station in either one of the first cell and the second cell on the basis of the measured communication quality of the second cell.

Mobile communication method, radio control station, and radio base station

A mobile communication method according to the present invention includes step of causing a mobile stationstanding by in a cell under a control of a radio base stationto send identification information of the mobile station and special identification information; step of, upon receipt of the special identification information, determining whether or not the mobile stationhas access permission to a radio base stationbased on the received identification information of the mobile stationand identification information of a second radio base station; and step of, when it is determined that the mobile stationhas access authorization to the radio base station, instructing the mobile stationto change a radio communication parameter used by the mobile station

Mobile communication method and exchange station

A radio network controller connected to multiple exchanges in a mobile communication system includes an exchange side interface configured to communicate with the multiple exchanges, a mobile station side interface configured to receive a call connection signal from a mobile station via a radio base station, a management unit configured to manage congestion levels indicative of congestion states of the respective exchanges and a control unit. The exchange side interface acquires the congestion levels from the respective exchanges, and the control unit determines to transfer a predefined ratio of call connection signals destined for an exchange having a higher congestion level to an exchange having a lower congestion level, the ratio being predefined corresponding to the congestion level.

Growing community of inventors

Yokosuka, Japan

Yasuhiro Kawabe