Patents by Inventor Akihiko Nishio

Akihiko Nishio 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).

  • Publication number: 20220150013
    Abstract: A terminal includes a receiver, which in operation, receives one or more discovery reference signal (DRS) transmitted by a base station within a channel occupancy time (COT) starting at a possible starting position that is not aligned with half a slot boundary. The terminal includes circuitry, which in operation, determines frame timing in response to receiving the one or more DRS.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 12, 2022
    Inventors: Lei Huang, Akihiko NISHIO, Tien Ming, Benjamin KOH
  • Patent number: 11330618
    Abstract: Communication apparatuses and methods reduce the amount of signaling while maintaining a high scheduling gain. A determination unit stores a correspondence between the number of code words and the number of clusters to reduce the maximum value for the number of clusters allocated to each terminal as the number of code words increases, and thus determines the maximum value for the number of clusters based on the number of code words acquired. Based on the number of code words for a transmission signal from a terminal, an estimated value for the reception quality that is output by an estimation unit, and the maximum value for the number of clusters that is output by the determination unit, a scheduling unit schedules the allocation of the transmission signal transmitted by each terminal to a transmission band frequency (frequency resource) so as not to exceed the maximum value for the number of clusters.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: May 10, 2022
    Assignee: Sun Patent Trust
    Inventors: Yoshihiko Ogawa, Akihiko Nishio, Daichi Imamura, Seigo Nakao, Masayuki Hoshino, Takashi Iwai, Sadaki Futagi
  • Publication number: 20220132504
    Abstract: In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Katsuhiko Hiramatsu
  • Publication number: 20220132476
    Abstract: This terminal improves the efficiency of random access processes. In a terminal (200), a control unit (209) determines, on the basis of parameters respectively set for each of a plurality of terminals, the resource to use to transmit a response signal to a downlink signal for the plurality of terminals, and a transmission unit (218) transmits the response signal using the resource.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 28, 2022
    Inventors: Tetsuya YAMAMOTO, Akihiko NISHIO, Hidetoshi SUZUKI, Yihui LI
  • Patent number: 11304183
    Abstract: Provided are a communication device and an SRS transmission method capable of reducing the possibility of a difference in recognition between the presence or absence of an SRS transmission between a base station and a terminal or of an SRS resource so as to prevent degradation of system throughput. At a terminal (200), a reception processing unit (203) detects control information indicating whether or not to request transmission of a sounding reference signal (SRS), whereupon a transmission signal forming unit (207) transmits an A-SRS by way of control by a transmission control unit (206) on the basis of control information. The transmission control unit (206) determines whether or not to execute SRS transmission on the basis of an “SRS Transmission Execution Rule” and the reception status of trigger information.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: April 12, 2022
    Assignee: Sun Patent Trust
    Inventors: Akihiko Nishio, Daichi Imamura
  • Publication number: 20220110127
    Abstract: A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus, a scheduling section allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section adjusts the set frequency allocation units set in the scheduling section based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Inventors: Takashi Iwai, Sadaki Futagi, Daichi Imamura, Akihiko Nishio, Seigo Nakao, Yoshihiko Ogawa
  • Publication number: 20220104279
    Abstract: A terminal, with which it is possible to improve the efficiency of a random access process. In a terminal (200), a control unit (209) dynamically determines a parameter pertaining to the transmission of a data part out of a random access signal that includes a preamble part and the data part. A transmission unit (217) notifies the determined parameter to a base station (100) using the random access signal.
    Type: Application
    Filed: December 4, 2019
    Publication date: March 31, 2022
    Inventors: Tetsuya YAMAMOTO, Hidetoshi SUZUKI, Rikin SHAH, Akihiko NISHIO, Ming-Hung TAO
  • Publication number: 20220104186
    Abstract: This invention concerns concepts for signaling resource allocation information to a terminal that indicates to the terminal assigned resources for the terminal. The terminal can receives downlink control information (DCI), which comprises a field for indicating the resource allocation information of the terminal. This resource assignment field within the DCI has a predetermined number of bits. The terminal can determines its assigned resource allocation information from the content of the received DCI, even though the bit size of the resource allocation field in the received DCI is insufficient to represent all allowed resource allocations. According to an embodiment, the received bits that are signaled to the terminal in the DCI represent predetermined bits of the resource allocation information. All remaining one or more bits of the resource allocation information that are not included in the field of the received DCI are set to predetermined value.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventors: Alexander Golitschek Edler von Elbwart, Akihiko Nishio
  • Publication number: 20220094489
    Abstract: Disclosed are a wireless base station, wireless terminal, and channel signal formation method that can prevent the quality of downstream assignment control data from degrading, while preventing the number of blind determinations from increasing on the wireless terminal on the receiving side of the downstream control channel signal. In a base station (100), a control unit (101) and a data size regulation unit (103) control the data size of downstream assignment control data and upstream assignment control data contained in the PDCCH signal based on the communication format used between the base station (100) and a terminal (200), the number of antennas (M) (nonnegative number) on the base station (100), the number of antennas (N) (nonnegative number) on the terminal (200), the bandwidth of the downstream band, and the bandwidth of the upstream band.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 24, 2022
    Inventors: Seigo NAKAO, Akihiko NISHIO, Daichi IMAMURA
  • Publication number: 20220078783
    Abstract: Disclosed is a base station which transmits and retransmits to a terminal first and second downlink data in first and second component carriers, respectively, wherein a first configuration pattern of UL (uplink) and DL (downlink) subframes is set for the first component carrier and a second configuration pattern of UL and DL subframes is set for the second component carrier. The base station receives from the terminal in the first component carrier an ACK/NACK for the first and second downlink data received by the terminal, which stores retransmission data of the first and second downlink data in a soft buffer, wherein the soft buffer for the second downlink data is sized according to a maximum number of downlink HARQ retransmission processes executable in a reference configuration pattern of UL and DL subframes, and the reference configuration pattern is determined according to the first and second configuration patterns.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Inventors: Toru Oizumi, Akihiko Nishio
  • Publication number: 20220070852
    Abstract: Provided are a radio transmission apparatus and a radio transmission method whereby the increase of number of signaling bits can be suppressed and further the flexibility of frequency scheduling can be improved. A notified RBG calculating unit (203) that adds a predetermined offset value of “1” or “?1” to one of the start RBG number and the end RBG number of allocated RBG number information (b?i) output by a scheduling unit (201), thereby calculating notified RBG number information (bi). An RBG total number setting unit (204) calculates the total number of RBGs, which is to be notified, by adding “1” to the total number of allocated RBGs. A notified information generating unit (205) applies the notified RBG number information (bi) and the notified total number of RBGs (Nrb?) to a predetermined formula, thereby generating and transmitting, to terminals, notified information (r).
    Type: Application
    Filed: November 9, 2021
    Publication date: March 3, 2022
    Applicant: Apple Inc.
    Inventors: Takashi Iwai, Daichi Imamura, Akihiko Nishio, Yoshihiko Ogawa, Shinsuke Takaoka
  • Patent number: 11265120
    Abstract: The invention provides a base station that does not cause the number of blind decodings to be increased and further can prevent the flexibility of resource allocation from degrading. A search space setting unit sets search spaces each of which is constituted by one or more control channel elements (CCEs) and each of which is to be decoded in the terminals and each of which is defined by a plurality of to-be-decoded candidates. An allocating unit places, in one of the plurality of to-be-decoded candidates included in the search space, a control channel. The number of connections of CCEs constituting the to-be-decoded candidate is associated with the number of to-be-decoded candidates. The search space setting unit causes, in accordance with the control channel to be transmitted, the association of the number of connections of CCEs constituting the to-be-decoded candidate with the number of to-be-decoded candidates to differ.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: March 1, 2022
    Assignee: Sun Patent Trust
    Inventors: Seigo Nakao, Akihiko Nishio, Ayako Horiuchi, Daichi Imamura
  • Patent number: 11257942
    Abstract: A resistive element that includes: a substrate; a first nitride semiconductor layer; a second nitride semiconductor layer; a two-dimensional electron gas layer on the first nitride semiconductor layer side at an interface between the first nitride semiconductor layer and the second nitride semiconductor layer; a first electrode ohmically connected to the two-dimensional electron gas layer; a second electrode ohmically connected to the two-dimensional electron gas layer; and an insulating layer between the first electrode and the second electrode in plan view. The two-dimensional electron gas layer functions as an electric resistance element. A conductive layer is not provided above the insulating layer between the first electrode and the second electrode in the plan view. The resistive element has a resistance-value stabilization structure that functions to keep a resistance value of the electric resistance element constant.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: February 22, 2022
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Kenichi Miyajima, Yoshiaki Katou, Akihiko Nishio, Kaname Motoyoshi
  • Patent number: 11258225
    Abstract: Provided is a laser oscillator including: one or more heat generating parts disposed in a housing; a piping system through which cooling water flows to the one or more heat generating parts; a water cooling type dehumidifier that dehumidifies air inside the housing using the cooling water; and an air cooling type dehumidifier that includes a Peltier element attached with a cooling fin and a radiating fin and includes a cooling water plate configured to cool the radiating fin with the cooling water, wherein the air cooling type dehumidifier starts to dehumidify the air inside the housing using the cooling fin while the cooling water is not flowing and dehumidifies the air inside the housing by cooling the radiating fin using the cooling water plate when the cooling water is flowing.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: February 22, 2022
    Assignee: Fanuc Corporation
    Inventors: Yoshiki Mihara, Akihiko Nishio
  • Patent number: 11252729
    Abstract: In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: February 15, 2022
    Assignee: Panasonic Corporation
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Katsuhiko Hiramatsu
  • Patent number: 11240806
    Abstract: A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus, a scheduling section allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section adjusts the set frequency allocation units set in the scheduling section based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: February 1, 2022
    Assignee: Sun Patent Trust
    Inventors: Takashi Iwai, Sadaki Futagi, Daichi Imamura, Akihiko Nishio, Seigo Nakao, Yoshihiko Ogawa
  • Publication number: 20220029760
    Abstract: A base station communicates with a terminal, for which an uplink component carrier and downlink component carriers are configured. The base station adjusts a payload size of control information, transmitted in a downlink control channel, based on a basic payload size, and maps the control information onto a search space in at least one of the downlink component carriers. The basic payload size of the control information mapped onto a search space in a primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the primary downlink component carrier, and on a number of information bits obtained from a bandwidth of the uplink component carrier. The basic payload size of the control information mapped onto a search space in a non-primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the non-primary downlink component carrier.
    Type: Application
    Filed: October 6, 2021
    Publication date: January 27, 2022
    Inventors: Seigo Nakao, Akihiko Nishio, Daichi Imamura
  • Patent number: 11234231
    Abstract: This invention concerns concepts for signaling resource allocation information to a terminal that indicates to the terminal assigned resources for the terminal. The terminal can receives downlink control information (DCI), which comprises a field for indicating the resource allocation information of the terminal. This resource assignment field within the DCI has a predetermined number of bits. The terminal can determines its assigned resource allocation information from the content of the received DCI, even though the bit size of the resource allocation field in the received DCI is insufficient to represent all allowed resource allocations. According to an embodiment, the received bits that are signaled to the terminal in the DCI represent predetermined bits of the resource allocation information. All remaining one or more bits of the resource allocation information that are not included in the field of the received DCI are set to predetermined value.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: January 25, 2022
    Assignee: Sun Patent Trust
    Inventors: Alexander Golitschek Edler von Elbwart, Akihiko Nishio
  • Publication number: 20220022181
    Abstract: A base station can prevent deterioration of data channel application control accuracy due to influence of transmission power control to a control channel. In the base station, each encoding section performs encoding processing to an SCCH (Shared Control Channel) of each mobile station, each modulating section performs modulation processing to the encoded SCCH, an arranging section arranges the SCCH to each mobile station to one of a plurality of subcarriers which configure an OFDM symbol, and transmission power control section controls transmission power of the SCCH based on reception quality information reported from each mobile station. The arranging section arranges a plurality of the SCCH to be under transmission power control to one of the subcarriers so that combinations at resource blocks are the same.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 20, 2022
    Inventors: Akihiko NISHIO, Masaru FUKUOKA
  • Patent number: 11223454
    Abstract: Disclosed are a wireless base station, wireless terminal, and channel signal formation method that can prevent the quality of downstream assignment control data from degrading, while preventing the number of blind determinations from increasing on the wireless terminal on the receiving side of the downstream control channel signal. In a base station (100), a control unit (101) and a data size regulation unit (103) control the data size of downstream assignment control data and upstream assignment control data contained in the PDCCH signal based on the communication format used between the base station (100) and a terminal (200), the number of antennas (M) (nonnegative number) on the base station (100), the number of antennas (N) (nonnegative number) on the terminal (200), the bandwidth of the downstream band, and the bandwidth of the upstream band.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: January 11, 2022
    Assignee: Sun Patent Trust
    Inventors: Seigo Nakao, Akihiko Nishio, Daichi Imamura