Ntt Docomo, Inc.

Ntt Mobile Communications Network, Inc.

Matsushita Electric Industrial Co., Ltd.

Mitsubishi Heavy Industries Limited

Riken Corporation

Nihon Hyomen Kagaku Kabushiki Kaisha

Ntt Mobile Communications Newtork, Inc.

Takaaki Sato

Motoshi Tamura

Katsuhiko Yamagata

Yasuyuki Watanabe

Yoshiyuki Yasuda

Takuya Hamajima

Junichiro Hagiwara

Masafumi Masuda

Kazufumi Yunoki

Mutsumaru Miki

Masafumi Hata

Nobutaka Ishikawa

Nobuhide Uchiyama

Akiko Okamoto

Kenya Kusunose

Akihiro Uchikoshi

Daisuke Igarashi

Tomoyuki Ohtani

Takehiro Nakamura

Kenichiro Aoyagi

Kazunori Obata

Yoshihiro Ishikawa

Yasuhiro Kawabe

Seizo Onoe

Hiroyuki Hosono

Takeshi Terayama

Takayuki Tsuneda

Ryoji Yamamoto

Mikio Iwamura

Hiroshi Kawakami

Takahiro Hayashi

Takeshi Okamoto

Yuichiro Nakamura

Etsuhiro Nakano

Hidehiro Ando

Koji Ohno

Hidetaka Hattori

Hideki Horizono

Kota Fujimura

Takanori Utano

Hironari Kobayashi

Tadashi Yazaki

Yoshitaka Hiramoto

Misa Suzuki

Makoto Shoji

Shinji Irie

Toyohiro Abe

Akiko Green Gables C-101 12-14 Okamoto

Nobutaka 202 Bell Light Nokendai Ishikawa

A method for manufacturing a resin-based composite material includes: a stage in which prepregs are stacked on a jig; a stage in which the stacked prepregs and the jig are covered and pressurized heat treatment is applied thereto to form a first semi-molded article and a second semi-molded article; a stage in which board thicknesses of the first semi-molded article and the second semi-molded article are measured, a stage in which the number of additional plies is determined based on the measured board thicknesses, a desired board thickness of the resin-based composite material, and physical properties of the additional plies; and a stage in which a layered product is formed by stacking the predetermined number of additional plies between the first semi-molded article and the second semi-molded article, the layered product and the jig are covered with a bagging material, and pressurized heat treatment is applied thereto.

Method for manufacturing resin-based composite material

A mobile communication systemincludes a selection unitconfigured to select a transition target frequency from the plurality of frequencies when a condition under which a mobile communication terminal not utilize a transition source frequency being any of the plurality of frequencies is fulfilled, and an instruction unitconfigured to instruct the mobile communication terminal to perform a transition to the transition target frequency selected by the selection unit. The selection unitexcludes the transition source frequency from a frequency candidate to be utilized by the mobile communication terminal until an elapsed time after the instruction of the transition to the transition target frequency exceeds a predetermined time.

Mobile communication system, network apparatus, and mobile communication method

An acidic chromium-free solution for treating a metal surface containing: a vanadium cation source and/or a vanadyl cation source; an organic acid as an anion source; and at least one oxoacid as another anion source is provided. The oxoacid is selected from oxoacids of nitrogen, sulfur, phosphorus, boron, and chlorine. A metal component composed of, for example, aluminum or magnesium is brought into contact with the chromium-free solution to form a vanadium coating film of a surface of the metal component. A surface treating process using this chromium-free solution is useful for formation of a coating film having low corrosion resistance and low electric resistance.

Chromium-free solution for treating metal surfaces

In a mobile communication system according to the present invention, the mobile communication system is configured to manage a specific mobile station which is allowed to communicate through a CSG cell under the control of a home base station (Home-eNB); and a general mobile station (UE) other than the specific mobile station is configured to be capable of using the CSG cell as a camped cell, only when broadcast information indicating an allowance of a camping in the specific cell is received.

Mobile communication system, home base station, and mobile station

A mobile communication system in which a home cell limits access from a first mobile station, and when the first mobile station communicating via a macro cell using the same frequency as the home cell enters a predetermined area near the home cell, the first mobile station is caused to perform handover to a different-frequency macro cell selected from among macro cells covering the predetermined area and using frequencies different from that used in the home cell.

Mobile communication system and network device

A base station outputs annunciation information which corresponds to a plurality of radio cells established by a 3G public base station and an LTE public base station and which is different from annunciation information output from the 3G public base station and the LTE public base station into a target region X and forms a radio cell. A mobile station that enters the radio cell receives the annunciation information of the radio cell and executes a position registration process. An information administration device can thereby find the mobile station based on the position registration process even in the environment where a plurality of radio cells to which different frequencies are assigned are established geographically overlapping with one another.

User information administration system and user information administration method

Disclosed is a communication method for switching between a first connection state, in which a data unit is transmitted in a first size, and a second connection state, in which a data unit is transmitted in a second size which is larger than the first size. The communication method comprises a step of maintaining the size of a data unit at the first size in a case where there is a transition from the first connection state to the second connection state after there had been a transition from the second connection state to the first connection state.

Communication method, communication system, and control apparatus

A mobile communication method according to the present invention includes a step A of offering a particular service through a second radio data link established between a mobile station and a cell in the second area in a state in which a first radio data link is not established between the mobile station and a cell in the first area and a step B of suspending the offer of the particular service through the second radio data link when the state in which the first radio data link is not established continues for a predetermined time period.

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

In a communication system of a subscriber extension line system, there is provided a communication controller whereby the load of an unnecessary process to be applied on a communication controller relating to a destination of a mobile telephone is eliminated and the processing efficiency for communication control is enhanced. In a D-RNC which controls the communication of the mobile telephone and which is commonly connected with an S-RNC, the mobile telephone moves while maintaining the communication with the S-RNC. When the mobile telephone enters a cell relating to the D-RNC, the control data is transmitted or received between the S-RNC and the node for managing the mobile telephone. There are also provided: an IP address/UDP port number for RNSAP, reading/setting sectionfor acquiring an IP address identifying the S-RNC and an IP address identifying the node; an IP address/UDP port number for NBAP, reading/setting section; and an IP address/UDP port number exchange sectionfor notifying the other side of the S-RNC and the node of the acquired IP addresses, respectively. This allows a direct communication between the S-RNC and the node.

Communication control device and communication control method

When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

Method and system for mobile communications

A UEincludes a storage unitconfigured to store a specific cell accessible by the mobile communication unit and a neighboring cell element for identifying a neighboring cell provided around the specific cell, while associating the specific cell and the neighboring cell element with each other, a search unitconfigured to search for the specific cell accessible, and a registration unitconfigured to register a element for identifying a transition source cell as the neighboring cell element, when the UEis transitioned from the transition source cell to the specific cell stored in the storage unit

Mobile communication terminal, mobile communication system, and mobile communication method

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;

Mobile communication method and radio base station

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.

A mobile communication according to the present invention includes a step A of causing the mobile station to judge whether or not the mobile station is allowed to go into a standby mode in a cell corresponding to a predetermined pilot channel when the mobile station detects a predetermined operation made by a user and a step B of causing the mobile station to enter the standby in the cell when the mobile station judges that the mobile station is allowed to be in the standby mode in the cell.

Mobile communication method and mobile station

Growing community of inventors

Yokosuka, Japan

Takaaki Sato