Patents by Inventor Hiroshi Katsuragawa

Hiroshi Katsuragawa 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: 10462798
    Abstract: To optimize transmission periods corresponding to kinds of feedback information, and minimize a reduction in system throughput caused by disagreement of the transmission period with the optimal period, by setting transmission frequencies individually with flexibility corresponding to the kinds of feedback information for a mobile station apparatus to transmit to a base station apparatus, in a wireless communication system in which a mobile station apparatus B measures reception quality of a signal received from a base station apparatus A, and transmits feedback information generated based on the reception quality to the base station apparatus A, the base station apparatus A allocates resources of transmission timing corresponding to the kinds of feedback information, and the mobile station apparatus B transmits a plurality of kinds of feedback information to the base station apparatus using the allocated resources.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: October 29, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yosuke Akimoto, Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Publication number: 20190239107
    Abstract: A MS transmits, to a BS, uplink data (UD) on a PUSCH, PUSCH being assigned by using a PDCCH. The MS receives on PDCCH, an indication instructing the MS to transmit reception quality information (RQI) without UD on PUSCH, and transmits on PUSCH, to the BS, RQI without UD based on the indication which is received on PDCCH. The indication is specified based on values to which a plurality of fields of information transmitted on PDCCH are set. One of the plurality of fields is a field used for instructing the MS to transmit RQI and another is a field used for indicating a redundancy version. For instructing the MS to transmit RQI without UD on PUSCH, the field used for instructing the MS to transmit RQI is set to a first single predetermined value (SPV) and the field used for indicating the redundancy version is set to a second SPV.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi KATSURAGAWA
  • Patent number: 10299153
    Abstract: A MS transmits, to a BS, uplink data (UD) on a PUSCH, PUSCH being assigned by using a PDCCH. The MS receives on PDCCH, an indication instructing the MS to transmit reception quality information (RQI) without UD on PUSCH, and transmits on PUSCH, to the BS, RQI without UD based on the indication which is received on PDCCH. The indication is specified based on values to which a plurality of fields of information transmitted on PDCCH are set. One of the plurality of fields is a field used for instructing the MS to transmit RQI and another is a field used for indicating a redundancy version. For instructing the MS to transmit RQI without UD on PUSCH, the field used for instructing the MS to transmit RQI is set to a first single predetermined value (SPV) and the field used for indicating the redundancy version is set to a second SPV.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: May 21, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Publication number: 20180152859
    Abstract: A MS transmits, to a BS, uplink data (UD) on a PUSCH, PUSCH being assigned by using a PDCCH. The MS receives on PDCCH, an indication instructing the MS to transmit reception quality information (RQI) without UD on PUSCH, and transmits on PUSCH, to the BS, RQI without UD based on the indication which is received on PDCCH. The indication is specified based on values to which a plurality of fields of information transmitted on PDCCH are set. One of the plurality of fields is a field used for instructing the MS to transmit RQI and another is a field used for indicating a redundancy version. For instructing the MS to transmit RQI without UD on PUSCH, the field used for instructing the MS to transmit RQI is set to a first single predetermined value (SPV) and the field used for indicating the redundancy version is set to a second SPV.
    Type: Application
    Filed: January 25, 2018
    Publication date: May 31, 2018
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi Katsuragawa
  • Patent number: 9913160
    Abstract: A MS transmits, to a BS, uplink data (UD) on a PUSCH, PUSCH being assigned by using a PDCCH. The MS receives on PDCCH, an indication instructing the MS to transmit reception quality information (RQI) without UD on PUSCH, and transmits on PUSCH, to the BS, RQI without UD based on the indication which is received on PDCCH. The indication is specified based on values to which a plurality of fields of information transmitted on PDCCH are set. One of the plurality of fields is a field used for instructing the MS to transmit RQI and another is a field used for indicating a redundancy version. For instructing the MS to transmit RQI without UD on PUSCH, the field used for instructing the MS to transmit RQI is set to a first single predetermined value (SPV) and the field used for indicating the redundancy version is set to a second SPV.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: March 6, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Publication number: 20170223545
    Abstract: Provided are a communication terminal device with which a user can easily recognize restriction contents when access is restricted, and a control method therefor. A communication terminal device configured to control access restriction according to access restriction information received includes: a restriction determination unit configured to determine whether or not access restriction is valid; and a control unit configured to, in a case that it is determined that the access restriction is valid, emphasize only a display of a service permitted to be used under the access restriction. This enables the user to easily recognize restriction contents when access is restricted.
    Type: Application
    Filed: August 1, 2014
    Publication date: August 3, 2017
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshitaka SUZUKI, Masafumi ARAMOTO, Hiroshi KATSURAGAWA, Natsuki YUASA, Hiroyuki KATATA
  • Patent number: 9681460
    Abstract: An apparatus for signal processing includes a scheduling unit and a transmitting unit. The scheduling unit is configured to assign one physical uplink control channel resource for transmissions of first group feedback information and second group feedback information. A first periodicity corresponds to the first group feedback information and a second periodicity corresponds to the second group feedback information. The transmitting unit is configured to transmit a transmission parameter of the first periodicity and the second periodicity and information of the assigned physical uplink control channel resource. The first group feedback information includes a transmission of reception quality information and transmission signal precoding information and the second group feedback information includes a transmission of transmission signal sequence information.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: June 13, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yosuke Akimoto, Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Patent number: 9414302
    Abstract: In a mobile communication system including a plurality of RATs (Radio Access Technologies), the necessity of a control channel for notifying RAT information is eliminated, and the lack of capacity of the control channel can be avoided. In a mobile station 30 communicating with base stations employing the different RATs by employing the respective RATs, when the mobile station executes procedures for registration to an LTE (Long-term evolution) base station 10-2 which allows access to only registered mobile stations that are registered in advance, the mobile station obtains, from a HSS (Home Subscriber Server) 40 tied to the LTE base station 10-2, information of another base station that performs communication by employing the RAT different from that used by the LTE base station 10-2.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: August 9, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiroshi Katsuragawa
  • Patent number: 9408091
    Abstract: Without introducing a complicated ad hoc network system, a transmission/reception signal of a mobile station apparatus is relayed using a communication protocol and a wireless access method defined in a current LTE standard. In a wireless relay communication system including a base station apparatus (12a), a mobile station apparatus (10a), and a wireless station apparatus (11a), the wireless station apparatus (11a) receives a mode switching control signal to switching a mode either to a mobile station apparatus mode in which the wireless station apparatus communicates as one mobile station apparatus (10a) with the base station apparatus (12a) or to a relay station apparatus mode in which the wireless station apparatus relays communication between the base station apparatus (12a) and the mobile station apparatus (10a).
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: August 2, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Wahoh Oh, Hiroshi Katsuragawa
  • Publication number: 20160157121
    Abstract: A MS transmits, to a BS, uplink data (UD) on a PUSCH, PUSCH being assigned by using a PDCCH. The MS receives on PDCCH, an indication instructing the MS to transmit reception quality information (RQI) without UD on PUSCH, and transmits on PUSCH, to the BS, RQI without UD based on the indication which is received on PDCCH. The indication is specified based on values to which a plurality of fields of information transmitted on PDCCH are set. One of the plurality of fields is a field used for instructing the MS to transmit RQI and another is a field used for indicating a redundancy version. For instructing the MS to transmit RQI without UD on PUSCH, the field used for instructing the MS to transmit RQI is set to a first single predetermined value (SPV) and the field used for indicating the redundancy version is set to a second SPV.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi KATSURAGAWA
  • Patent number: 9288030
    Abstract: A mobile communication system in which a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without the uplink data according to the information for instructing transmission of reception quality information without uplink data.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: March 15, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Patent number: 9264202
    Abstract: A mobile communication system in which a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without uplink data according to the information for instructing transmission of reception quality information without uplink data.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: February 16, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Patent number: 9237500
    Abstract: A user registers a desired mobile station at a desired HNB (Home Node B) in a simple operation. A CSG (Closed Subscriber Group) type base station restricts an access from a mobile station that has not been registered yet.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: January 12, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hiroshi Katsuragawa
  • Patent number: 9173125
    Abstract: A mobile station (MS) that transmits uplink data on a PUSCH, the PUSCH being assigned by using a PDCCH. The MS receives a radio resource control signal including first information instructing the MS apparatus to periodically transmit first reception quality information (RQI) and receives, on the PDCCH, second information instructing the MS to transmit second RQI on the PUSCH. The MS transmits only the second RQI on the PUSCH in a case that the transmission of the first RQI which is instructed by using the first information and the transmission of the second RQI which is instructed by using the second information would occur at the same time, where the second RQI is transmitted together with the uplink data on the PUSCH and an amount of resources for the second RQI is determined based on a size of the PUSCH assigned by using the PDCCH.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 27, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Patent number: 9106390
    Abstract: A base station apparatus in a mobile communication system in which a mobile station apparatus transmits, to the base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal. The base station apparatus includes a transmitting unit which is configured to transmit, to the mobile station apparatus, the uplink data transmission permission signal including first information for permitting the mobile station apparatus to transmit reception quality information together with the uplink data, wherein the transmitting unit which is configured to transmit, to the mobile station apparatus, the uplink data transmission permission signal including second information for permitting the mobile station apparatus to transmit the reception quality information without the uplink data.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 11, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Publication number: 20150063264
    Abstract: A mobile station (MS) that transmits uplink data on a PUSCH, the PUSCH being assigned by using a PDCCH. The MS receives a radio resource control signal including first information instructing the MS apparatus to periodically transmit first reception quality information (RQI) and receives, on the PDCCH, second information instructing the MS to transmit second RQI on the PUSCH. The MS transmits only the second RQI on the PUSCH in a case that the transmission of the first RQI which is instructed by using the first information and the transmission of the second RQI which is instructed by using the second information would occur at the same time, where the second RQI is transmitted together with the uplink data on the PUSCH and an amount of resources for the second RQI is determined based on a size of the PUSCH assigned by using the PDCCH.
    Type: Application
    Filed: October 29, 2014
    Publication date: March 5, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi KATSURAGAWA
  • Patent number: 8923238
    Abstract: A mobile station (MS) transmits, to a base station (BS), uplink data on a PUSCH, the PUSCH is assigned by using a PDCCH. The MS receives, from the BS, a radio resource control signal including first information instructing the MS to periodically transmit first reception quality information (RQI), the radio resource control signal including second information for determining an amount of resources for second RQI transmitted on the PUSCH, and third information instructing the MS to transmit the second RQI on the PUSCH; and transmits, to the BS, only the second RQI on the PUSCH in a case that the transmission of the first RQI which is instructed by using the first information and the transmission of the second RQI which is instructed by using the third information would occur at the same time, wherein the amount of resources for the second RQI is determined based on the second information.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: December 30, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Publication number: 20140213244
    Abstract: Without introducing a complicated ad hoc network system, a transmission/reception signal of a mobile station apparatus is relayed using a communication protocol and a wireless access method defined in a current LTE standard. In a wireless relay communication system including a base station apparatus (12a), a mobile station apparatus (10a), and a wireless station apparatus (11a), the wireless station apparatus (11a) receives a mode switching control signal to switching a mode either to a mobile station apparatus mode in which the wireless station apparatus communicates as one mobile station apparatus (10a) with the base station apparatus (12a) or to a relay station apparatus mode in which the wireless station apparatus relays communication between the base station apparatus (12a) and the mobile station apparatus (10a).
    Type: Application
    Filed: June 5, 2012
    Publication date: July 31, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Wahoh Oh, Hiroshi Katsuragawa
  • Publication number: 20140198759
    Abstract: A mobile station (MS) transmits, to a base station (BS), uplink data on a PUSCH, the PUSCH is assigned by using a PDCCH. The MS receives, from the BS, a radio resource control signal including first information instructing the MS to periodically transmit first reception quality information (RQI), the radio resource control signal including second information for determining an amount of resources for second RQI transmitted on the PUSCH, and third information instructing the MS to transmit the second RQI on the PUSCH; and transmits, to the BS, only the second RQI on the PUSCH in a case that the transmission of the first RQI which is instructed by using the first information and the transmission of the second RQI which is instructed by using the third information would occur at the same time, wherein the amount of resources for the second RQI is determined based on the second information.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi KATSURAGAWA
  • Publication number: 20140148161
    Abstract: A user registers a desired mobile station at a desired HNB (Home Node B) in a simple operation. A CSG (Closed Subscriber Group) type base station restricts an access from a mobile station that has not been registered yet.
    Type: Application
    Filed: June 26, 2012
    Publication date: May 29, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Hiroshi Katsuragawa