Patents by Inventor Kota Fujimura

Kota Fujimura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9560578
    Abstract: To transmit a “CELL UPDATE message” in a radio access network not supporting “Additional Dynamic Transport Format Information for CCCH,” a mobile station UE according to the present invention includes a transmitting unit 13 configured to transmit a “CELL UPDATE message” to a radio access network in a “CELL UPDATE procedure,” and the transmitting unit 13 includes a predetermined information element in the “CELL UPDATE message” only when the radio access network supports the “Additional Dynamic Transport Format Information for CCCH.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: January 31, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Kenichiro Aoyagi, Sadayuki Abeta, Tetsuto Shimomura, Atsushi Ueki, Kota Fujimura
  • Publication number: 20150351150
    Abstract: The present invention shortens an out-of-service duration while suppressing an increase of power consumption. A mobile communication terminal UE of the present invention includes a control unit 11 configured to, when the mobile communication terminal UE fails, consecutively a predetermined number of times, to transmit a. “RRC Connection Request” for a camping-on cell #A, add the cell #A to a rejection cell list and perform cell search. In the cell search, the control unit 11 excludes the cell #A included in the rejection cell list from cells of selection targets.
    Type: Application
    Filed: January 17, 2014
    Publication date: December 3, 2015
    Applicant: NTT DOCOMO, INC.
    Inventors: Sung Uk Moon, Atsushi Ueki, Kota Fujimura, Hiroaki Tanikawa
  • Publication number: 20150163727
    Abstract: To transmit a “CELL UPDATE message” in a radio access network not supporting “Additional Dynamic Transport Format Information for CCCH,” a mobile station UE according to the present invention includes a transmitting unit 13 configured to transmit a “CELL UPDATE message” to a radio access network in a “CELL UPDATE procedure,” and the transmitting unit 13 includes a predetermined information element in the “CELL UPDATE message” only when the radio access network supports the “Additional Dynamic Transport Format Information for CCCH.
    Type: Application
    Filed: July 10, 2013
    Publication date: June 11, 2015
    Inventors: Kenichiro Aoyagi, Sadayuki Abeta, Tetsuto Shimomura, Atsushi Ueki, Kota Fujimura
  • Patent number: 8428628
    Abstract: A communication method according to the present invention includes: transmitting, at a radio base station device (b), broadcast information for notifying a first area and a second area; transmitting, from a first mobile terminal to a radio control device (c), a first location registration request signal for the first area included in the broadcast information, when the first area is not identical to a first area stored as a current location registration area; and transmitting, from a second mobile terminal to the radio control device (c), a second location registration request signal for the second area included in the broadcast information, when the second area is not included in a second area group stored as a current location registration area.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: April 23, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Itsuma Tanaka, Keisuke Suzuki, Masashi Kanauchi, Kota Fujimura
  • Patent number: 8422423
    Abstract: A packet communication method of the present invention includes a step of: receiving, at a mobile station (UE), restriction information for accepting an incoming call and restricting an outgoing call; establishing, at the mobile station (UE), a control path with a packet exchange (SGSN) in response to incoming of paging for the mobile station (UE); sending, the packet exchange (SGSN), a message instructing to establish the data path via the control path; and establishing, at the mobile station (UE), the data path by calling to the packet exchange (SGSN), when the mobile station (UE) receives the message after the mobile station (UE) has received the restriction information.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: April 16, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Masashi Kanauchi, Kota Fujimura, Shinpei Kawakatsu
  • Patent number: 8254873
    Abstract: In a mobile communication system, the radio device RNC, Node B includes: a creation unit 11 configured to create, on the basis of the notification information received from the distribution server, simplified information indicating content of the notification information, and detailed information indicating content of the notification information with a greater amount of information than that of the simplified information; a simplified information transmitter unit 12, 34 configured to transmit the simplified information to the mobile station by use of a control channel for starting the broadcast communication; and a detailed information transmitter unit 15, 35 configured to transmit the detailed information to the mobile station by use of a traffic channel for broadcast communication, and the mobile station UE includes: a display unit 55, 58 configured to display the received detailed information, after displaying the received simplified information.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: August 28, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Ryo Kitahara, Minami Ishii, Katsuhiro Noguchi, Kota Fujimura
  • Patent number: 8175663
    Abstract: Provided is a mobile station UE equipped with a broadcast information generation unit (11) which generates broadcast information containing tag information formed by a plurality of bits. The tag information has a value defined only by a plurality of first bit values or by a plurality of first bit values and second bit values. The first bits contain a flag indicating whether the tag information contains the second bits. The broadcast information generation unit (11) updates the tag information value each time the content of the broadcast information is updated.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: May 8, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Mikio Iwamura, Hiroaki Yamagishi, Kota Fujimura, Hideyuki Sakuramoto, Kazunori Obata, Takuya Takimoto
  • Publication number: 20110201380
    Abstract: Provided is a mobile station UE equipped with a broadcast information generation unit (11) which generates broadcast information containing tag information formed by a plurality of bits. The tag information has a value defined only by a plurality of first bit values or by a plurality of first bit values and second bit values. The first bits contain a flag indicating whether the tag information contains the second bits. The broadcast information generation unit (11) updates the tag information value each time the content of the broadcast information is updated.
    Type: Application
    Filed: August 11, 2009
    Publication date: August 18, 2011
    Applicant: NTT DOCOMO, INC.
    Inventors: Mikio Iwamura, Hiroaki Yamagishi, Kota Fujimura, Hideyuki Sakuramoto, Kazunori Obata, Takuya Takimoto
  • Publication number: 20110124355
    Abstract: A communication method according to the present invention includes: transmitting, at a radio base station device (b), broadcast information for notifying a first area and a second area; transmitting, from a first mobile terminal to a radio control device (c), a first location registration request signal for the first area included in the broadcast information, when the first area is not identical to a first area stored as a current location registration area; and transmitting, from a second mobile terminal to the radio control device (c), a second location registration request signal for the second area included in the broadcast information, when the second area is not included in a second area group stored as a current location registration area.
    Type: Application
    Filed: August 20, 2008
    Publication date: May 26, 2011
    Applicant: NTT DOCOMO, INC.
    Inventors: Itsuma Tanaka, Keisuke Suzuki, Masashi Kanauchi, Kota Fujimura
  • Patent number: 7925262
    Abstract: A mobile station performs location registration to one of exchanges managing a location registration area where the mobile station is located, in a mobile communication system in which a plurality of exchanges manage one location registration area and a radio network controller is connected to the plurality of exchanges. The mobile station includes a communication controller configured to stop transmission of signals to the radio network controller, when an identifier of an exchange notified by an access restriction signal from the radio network controller matches an identifier of an exchange which has performed the location registration of the mobile station.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: April 12, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Kazuyuki Kozu, Kota Fujimura, Takashi Suzuki
  • Publication number: 20100233990
    Abstract: In a mobile communication system, the radio device RNC, Node B includes: a creation unit 11 configured to create, on the basis of the notification information received from the distribution server, simplified information indicating content of the notification information, and detailed information indicating content of the notification information with a greater amount of information than that of the simplified information; a simplified information transmitter unit 12, 34 configured to transmit the simplified information to the mobile station by use of a control channel for starting the broadcast communication; and a detailed information transmitter unit 15, 35 configured to transmit the detailed information to the mobile station by use of a traffic channel for broadcast communication, and the mobile station UE includes: a display unit 55, 58 configured to display the received detailed information, after displaying the received simplified information.
    Type: Application
    Filed: June 19, 2007
    Publication date: September 16, 2010
    Applicant: NTT DoCoMo, Inc.
    Inventors: Ryo Kitahara, Minami Ishii, Katsuhiro Noguchi, Kota Fujimura
  • Publication number: 20100074171
    Abstract: A packet communication method of the present invention includes a step of: receiving, at a mobile station (UE), restriction information for accepting an incoming call and restricting an outgoing call; establishing, at the mobile station (UE), a control path with a packet exchange (SGSN) in response to incoming of paging for the mobile station (UE); sending, the packet exchange (SGSN), a message instructing to establish the data path via the control path; and establishing, at the mobile station (UE), the data path by calling to the packet exchange (SGSN), when the mobile station (UE) receives the message after the mobile station (UE) has received the restriction information.
    Type: Application
    Filed: October 11, 2007
    Publication date: March 25, 2010
    Applicant: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Masashi Kanauchi, Kota Fujimura, Shinpei Kawakatsu
  • Patent number: 7373147
    Abstract: A mobile station is configured to transmit a first location registration related signal addressed to a first exchange to a radio network controller, so as to perform location registration to both the first exchange and a second exchange, when operating in first network operation mode. The mobile station includes a controller configured to transmit a second location registration related signal addressed to the second exchange to the radio network controller, so as to perform the location registration to the second exchange without passing thorough the first exchange, when the mobile station operates in the first network operation mode and when the mobile station receives an access restriction signal for the first exchange from the radio network controller.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 13, 2008
    Assignee: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Kazuyuki Kozu, Kota Fujimura, Takashi Suzuki
  • Patent number: 7263384
    Abstract: The object of the invention is to allow two systems residing in the same area and same frequency band to be coexistent compatibly with each other while reducing the mutual interference. A radio network controller 20 for controlling the broadcast timing when various kinds of broadcast information is broadcast with respect to each of two systems, which reside in the same frequency band of the same area and have common specification for physical layer in a state where all or a part of upper layer protocols have no compatibility, broadcasts various kinds of broadcast information about system 1 at a predetermined timing. With respect to various kinds of broadcast information about system 2, broadcast timing information, which is scheduled to be staggered from the broadcast timing of the system 1, is notified using a part of region of the broadcast information, and the broadcast information of the system 2 is broadcast at the notified broadcast timing.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: August 28, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventors: Takaaki Sato, Kota Fujimura
  • Patent number: 7224971
    Abstract: A radio network controller connected to a first exchange and a second exchange which manage a same location registration area. The radio network controller includes a manager configured to manage a mobile station under control of the radio network controller, in association with the first exchange or the second exchange; a transfer configured to transfer a signal transmitted from the mobile station to the first exchange or the second exchange which is associated with the mobile station; and a monitor configured to monitor state of the first exchange and the second exchange. The transfer is configured to transfer a signal from the mobile station associated with the first exchange, to the second exchange, when the monitor detects inaccessibility to the first exchange.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 29, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Kazuyuki Kozu, Kota Fujimura, Takashi Suzuki
  • Patent number: 7092711
    Abstract: There is provided a neighbor cell notifying apparatus capable of implementing more efficient notification to a mobile station within a range that can be notified of and monitored, when the mobile station in communication using a plurality of cells is notified of neighbor cell information. This neighbor cell notifying apparatus includes a cell information extracting part for extracting neighbor cell information items for specifying respective neighbor cells corresponding to each of the cells; a cell rank determining part for, based on the neighbor cell information items extracted, determining ranks of neighbor cell information items that the mobile station is to be notified of, in favor of neighbor cell information items about neighbor cells common to the cells; and a cell information notifying part for notifying the mobile station of a predetermined number of neighbor cell information items among the neighbor cell information items on the basis of the ranks determined.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: August 15, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masafumi Masuda, Kota Fujimura, Yutaka Ohto
  • Patent number: 7006952
    Abstract: For an apparatus effectively providing a real three-dimensional model to a customer, three-dimensional shape data of a target is obtained at a data input section (10). The data is managed by a server which is connected to a network. A suitable formation section (14) is selected to form a real three-dimensional model based on the data. In addition, the formation completion is automatically notified to the customer via a completion display panel (260), a cellular phone (61), or the like.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: February 28, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yukinori Matsumoto, Kota Fujimura, Kazuhide Sugimoto, Yasuhiro Oue, Toru Kitamura, Osamu Ota
  • Patent number: 6977651
    Abstract: A three-dimensional model providing apparatus in which a customer can easily modify the input three-dimensional data. The apparatus comprises an input section (10) for inputting three-dimensional data, a server section (12) for managing the processes on the three-dimensional data from input to output, a providing section (14) for providing three-dimensional data, a communicating section for communicating the three-dimensional data between the input section, server section, and providing section, a receiving section (11) for receiving instruction contents from the customer, and a converting section (13) for modifying, processing, or converting the three-dimensional data according to the instruction contents.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: December 20, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yukinori Matsumoto, Kota Fujimura, Kazuhide Sugimoto, Yasuhiro Oue, Toru Kitamura, Osamu Ota
  • Publication number: 20050233745
    Abstract: A mobile station performs location registration to one of exchanges managing a location registration area where the mobile station is located, in a mobile communication system in which a plurality of exchanges manage one location registration area and a radio network controller is connected to the plurality of exchanges. The mobile station includes a communication controller configured to stop transmission of signals to the radio network controller, when an identifier of an exchange notified by an access restriction signal from the radio network controller matches an identifier of an exchange which has performed the location registration of the mobile station.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 20, 2005
    Applicant: NTT DoCoMo, Inc.
    Inventors: Katsuhiro Noguchi, Kazuyuki Kozu, Kota Fujimura, Takashi Suzuki
  • Publication number: 20050227690
    Abstract: A radio network controller connected to a first exchange and a second exchange which manage a same location registration area. The radio network controller includes a manager configured to manage a mobile station under control of the radio network controller, in association with the first exchange or the second exchange; a transfer configured to transfer a signal transmitted from the mobile station to the first exchange or the second exchange which is associated with the mobile station; and a monitor configured to monitor state of the first exchange and the second exchange. The transfer is configured to transfer a signal from the mobile station associated with the first exchange, to the second exchange, when the monitor detects inaccessibility to the first exchange.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 13, 2005
    Applicant: NTT DoCoMo, Inc
    Inventors: Katsuhiro Noguchi, Kazuyuki Kozu, Kota Fujimura, Takashi Suzuki