Patents by Inventor Yasuaki Yuda
Yasuaki Yuda 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).
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Publication number: 20240114377Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.Type: ApplicationFiled: December 13, 2023Publication date: April 4, 2024Inventors: Yasuaki YUDA, Seigo NAKAO, Ayako HORIUCHI, Daichi IMAMURA, Masayuki HOSHINO, Atsushi SUMASU
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Publication number: 20240107548Abstract: Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station maps a downstream allocation control information unit, which is addressed to a terminal, to a first resource region, which can be used for any of a downstream control channel region and a downstream data channel region, or to a second resource region, which can be used only for the downstream control channel, so as to transmit the downstream allocation control information unit. In the base station, a control unit establishes a scale of the PDCCH region, and a transmission region establishing unit establishes, on the basis of a scale value established by the control unit, a mapping region to which the DCI is mapped within the R-PDCCH region and the PDCCH region.Type: ApplicationFiled: November 29, 2023Publication date: March 28, 2024Inventors: Akihiko NISHIO, Seigo NAKAO, Ayako HORIUCHI, Yasuaki YUDA, Sujuan FENG, Michael EINHAUS
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Patent number: 11889340Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.Type: GrantFiled: January 9, 2023Date of Patent: January 30, 2024Assignee: Sun Patent TrustInventors: Yasuaki Yuda, Seigo Nakao, Ayako Horiuchi, Daichi Imamura, Masayuki Hoshino, Atsushi Sumasu
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Patent number: 11871432Abstract: Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station maps a downstream allocation control information unit, which is addressed to a terminal, to a first resource region, which can be used for any of a downstream control channel region and a downstream data channel region, or to a second resource region, which can be used only for the downstream control channel, so as to transmit the downstream allocation control information unit. In the base station, a control unit establishes a scale of the PDCCH region, and a transmission region establishing unit establishes, on the basis of a scale value established by the control unit, a mapping region to which the DCI is mapped within the R-PDCCH region and the PDCCH region.Type: GrantFiled: September 27, 2022Date of Patent: January 9, 2024Assignee: Sun Patent TrustInventors: Akihiko Nishio, Seigo Nakao, Ayako Horiuchi, Yasuaki Yuda, Sujuan Feng, Michael Einhaus
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Publication number: 20230422268Abstract: A base station is disclosed that enables an efficient use of resources even when a TTI length is shortened. In this base station, a PDCCH section (103) generates one piece of downlink control information (DCI) containing control information for a plurality of first transmission time intervals (TTIs) each having a TTI length shorter than a second TTI, and a transmission section (107) transmits the DCI. Control information on retransmission processing for a data signal is configured for each of the plurality of first TTIs while control information other than the control information on the retransmission processing is configured in common among the plurality of first TTIs in the DCI.Type: ApplicationFiled: September 13, 2023Publication date: December 28, 2023Inventors: Ayako Horiuchi, Lilei Wang, Alexander Golitschek Edler von Elbwart, Masayuki Hoshino, Yasuaki Yuda
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Patent number: 11818735Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.Type: GrantFiled: July 1, 2022Date of Patent: November 14, 2023Assignee: Sun Patent TrustInventors: Yasuaki Yuda, Seigo Nakao, Ayako Horiuchi, Akihiko Nishio, Daichi Imamura, Kenichi Miyoshi
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Publication number: 20230362036Abstract: A reception apparatus according to the present disclosure includes a receiver which, in operation, receives a downlink signal including a first data signal for the reception apparatus and first Reference Signals for Phase Tracking (PT-RS). The first data signal is mapped on a first set of subcarriers and the first PT-RS is mapped to the downlink signal based on a first Modulation and Coding Scheme (MCS) configured for the first data signal. The reception apparatus according also includes a circuit which, in operation, estimates a phase noise using the first PT-RS included in the downlink signal.Type: ApplicationFiled: July 18, 2023Publication date: November 9, 2023Inventors: Yutaka MURAKAMI, Yasuaki YUDA
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Patent number: 11792817Abstract: A base station is disclosed that enables an efficient use of resources even when a TTI length is shortened. In this base station, a PDCCH section (103) generates one piece of downlink control information (DCI) containing control information for a plurality of first transmission time intervals (TTIs) each having a TTI length shorter than a second TTI, and a transmission section (107) transmits the DCI. Control information on retransmission processing for a data signal is configured for each of the plurality of first TTIs while control information other than the control information on the retransmission processing is configured in common among the plurality of first TTIs in the DCI.Type: GrantFiled: October 28, 2021Date of Patent: October 17, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Ayako Horiuchi, Lilei Wang, Alexander Golitschek Edler von Elbwart, Masayuki Hoshino, Yasuaki Yuda
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Publication number: 20230309187Abstract: A communication apparatus includes: control circuitry which, in operation, in accordance with a condition, makes a setting of enabling or disabling of first communication using a first radio frequency band and makes a setting of enabling or disabling of second communication using a second radio frequency band lower than the first radio frequency band; and communication circuitry which, in operation, performs the first communication or the second communication in accordance with the setting of the enabling or disabling of the first communication and the setting of the enabling or disabling of the second communication.Type: ApplicationFiled: March 21, 2023Publication date: September 28, 2023Inventors: Shotaro MAKI, Akihiko NISHIO, Yasuaki YUDA, Toshiaki SAKURAI
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Publication number: 20230308329Abstract: A communication apparatus includes: control circuitry which, in operation, makes a setting of a radio waveform of a signal according to a radio frequency band used for transmission or reception of the signal; and communication circuitry which, in operation, transmits or receives the signal based on the setting of the radio waveform.Type: ApplicationFiled: March 21, 2023Publication date: September 28, 2023Inventors: Akihiko NISHIO, Yasuaki YUDA, Shotaro MAKI, Toshiaki SAKURAI
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Publication number: 20230300760Abstract: A terminal is provided with a reception circuit for receiving information from a second node that pertains to the determination of the parameter used for open-loop control for a first node, and a control circuit for exercising open-loop control on the basis of the information.Type: ApplicationFiled: February 18, 2021Publication date: September 21, 2023Inventors: Tetsuya YAMAMOTO, Hidetoshi SUZUKI, Takashi IWAI, Akihiko NISHIO, Ayako HORIUCHI, Yasuaki YUDA
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Patent number: 11757679Abstract: A reception apparatus according to the present disclosure includes a receiver which, in operation, receives a downlink signal including a first data signal for the reception apparatus and first Reference Signals for Phase Tracking (PT-RS). The first data signal is mapped on a first set of subcarriers and the first PT-RS is mapped to the downlink signal based on a first Modulation and Coding Scheme (MCS) configured for the first data signal. The reception apparatus according also includes a circuit which, in operation, estimates a phase noise using the first PT-RS included in the downlink signal.Type: GrantFiled: May 24, 2021Date of Patent: September 12, 2023Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Yutaka Murakami, Yasuaki Yuda
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Publication number: 20230189043Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.Type: ApplicationFiled: January 9, 2023Publication date: June 15, 2023Inventors: Yasuaki YUDA, Seigo NAKAO, Ayako HORIUCHI, Daichi IMAMURA, Masayuki HOSHINO, Atsushi SUMASU
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Publication number: 20230052173Abstract: According to the present invention, a base station is provided with: a control circuit that, through non-orthogonal multiplexing, allocates a first transmission power to a first signal corresponding to a first terminal type and allocates a second transmission power to a second signal corresponding to a second terminal type; and a transmission circuit that transmits the first signal and second signal having been non-orthogonally multiplexed.Type: ApplicationFiled: October 28, 2020Publication date: February 16, 2023Inventors: Akihiko NISHIO, Yasuaki YUDA, Tetsuya YAMAMOTO
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Patent number: 11582630Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.Type: GrantFiled: March 16, 2021Date of Patent: February 14, 2023Assignee: Sun Patent TrustInventors: Yasuaki Yuda, Seigo Nakao, Ayako Horiuchi, Daichi Imamura, Masayuki Hoshino, Atsushi Sumasu
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Publication number: 20230024162Abstract: Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station maps a downstream allocation control information unit, which is addressed to a terminal, to a first resource region, which can be used for any of a downstream control channel region and a downstream data channel region, or to a second resource region, which can be used only for the downstream control channel, so as to transmit the downstream allocation control information unit. In the base station, a control unit establishes a scale of the PDCCH region, and a transmission region establishing unit establishes, on the basis of a scale value established by the control unit, a mapping region to which the DCI is mapped within the R-PDCCH region and the PDCCH region.Type: ApplicationFiled: September 27, 2022Publication date: January 26, 2023Inventors: Akihiko NISHIO, Seigo NAKAO, Ayako HORIUCHI, Yasuaki YUDA, Sujuan FENG, Michael EINHAUS
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Publication number: 20230013540Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.Type: ApplicationFiled: September 28, 2022Publication date: January 19, 2023Inventors: Masayuki HOSHINO, Akihiko NISHIO, Seigo NAKAO, Daichi IMAMURA, Yasuaki YUDA
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Patent number: 11523337Abstract: The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.Type: GrantFiled: April 28, 2020Date of Patent: December 6, 2022Assignee: SUN PATENT TRUSTInventors: Atsushi Sumasu, Daichi Imamura, Ayako Horiuchi, Yasuaki Yuda
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Patent number: 11490368Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.Type: GrantFiled: February 7, 2020Date of Patent: November 1, 2022Assignee: SUN PATENT TRUSTInventors: Masayuki Hoshino, Akihiko Nishio, Seigo Nakao, Daichi Imamura, Yasuaki Yuda
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Patent number: 11490377Abstract: Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station maps a downstream allocation control information unit, which is addressed to a terminal, to a first resource region, which can be used for any of a downstream control channel region and a downstream data channel region, or to a second resource region, which can be used only for the downstream control channel, so as to transmit the downstream allocation control information unit. In the base station, a control unit establishes a scale of the PDCCH region, and a transmission region establishing unit establishes, on the basis of a scale value established by the control unit, a mapping region to which the DCI is mapped within the R-PDCCH region and the PDCCH region.Type: GrantFiled: July 2, 2020Date of Patent: November 1, 2022Assignee: Sun Patent TrustInventors: Akihiko Nishio, Seigo Nakao, Ayako Horiuchi, Yasuaki Yuda, Sujuan Feng, Michael Einhaus