Patents by Inventor Yuki MATSUMURA
Yuki MATSUMURA 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: 20250151052Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives first downlink control information for scheduling a first UL channel and second downlink control information for scheduling a second UL channel; and a control section that controls at least one of application of first UE operation related to transmission of the first channel and transmission of the second channel in a time domain and application of second UE operation related to order of transmission of each of the downlink control information and each of the UL channels, based on whether or not respective panels or transmission/reception points (TRPs) corresponding to the first downlink control information and the second downlink control information are same.Type: ApplicationFiled: February 10, 2022Publication date: May 8, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Publication number: 20250150865Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that, when a first reference signal set for beam failure detection and a second reference signal set for a candidate beam, or a third reference signal set for the beam failure detection and a fourth reference signal set for the candidate beam instead of the first reference signal set and the second reference signal set are supported, receives one of information related to the second reference signal set and information related to the fourth reference signal set; and a control section that, when information related to the first reference signal set and information related to the third reference signal set are not provided, determines a reference signal set to be used for the beam failure detection, based on one of the information related to the second reference signal set and the information related to the fourth reference signal set.Type: ApplicationFiled: February 14, 2022Publication date: May 8, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Publication number: 20250150979Abstract: A terminal according to one aspect of the present disclosure includes a control section that determines a plurality of groups including a plurality of resources for a physical random access channel, determines one or more pathloss reference signals for the plurality of groups, and determines a plurality of pieces of transmission power corresponding to the plurality of respective resources, based on the one or more pathloss reference signals; and a transmitting section that transmits a plurality of repetitions of the physical random access channel in the plurality of resources. According to one aspect of the present disclosure, a coverage of a random access procedure can be improved.Type: ApplicationFiled: May 20, 2022Publication date: May 8, 2025Applicant: NTT DOCOMO, INC.Inventors: Naoya SHIBAIKE, Yuki MATSUMURA, Satoshi NAGATA, Qiping PI, Jing WANG, Lan CHEN, Yiyi LU, Yong LI
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Patent number: 12295016Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives downlink control information (DCI) for scheduling a downlink shared channel of a multicast; and a control section that controls transmission of Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) with respect to the downlink shared channel based on the DCI, wherein the DCI is common to a plurality of terminals. According to one aspect of the present disclosure, a PDSCH using the multicast can be appropriately received.Type: GrantFiled: March 27, 2020Date of Patent: May 6, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20250141529Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information for enabling two default beam pathlosses for uplink (UL) transmission and information for indicating the UL transmission, and a control section that determines, based on whether the UL transmission is transmission over a plurality of slots, at least one of a default spatial relation and a default pathloss reference signal (PL-RS) to be applied to the UL transmission. According to one aspect of the present disclosure, it is possible to appropriately control operation related to a default TCI state/spatial relation/pathloss reference signal.Type: ApplicationFiled: September 10, 2021Publication date: May 1, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang
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Patent number: 12289721Abstract: A terminal according to one aspect of the present disclosure includes a control section that determines spatial relation information for a physical uplink shared channel (PUSCH) for a plurality of transmission/reception points by using at least one of radio resource control (RRC) signaling, medium access control (MAC) signaling, and downlink control information (DCI), and a transmitting section that repeatedly transmits the PUSCH by using a spatial domain transmission filter based on the spatial relation information. According to one aspect of the present disclosure, PUSCH repetition transmission can be appropriately controlled.Type: GrantFiled: February 28, 2020Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
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Patent number: 12289726Abstract: A terminal includes a reception unit configured to receive resource information of an uplink transmission, the resource information including spatial relation information, and a setting unit configured to perform configuration related to the uplink transmission, in accordance with the resource information of the uplink transmission, the resource information including the spatial relation information. The spatial relation information of the resource information of the uplink transmission is activated or deactivated.Type: GrantFiled: August 14, 2019Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Hideaki Takahashi, Yuki Matsumura
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Publication number: 20250133568Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives information related to at least one of a search space set and a control resource set for repetition transmission of a downlink control channel; and a control section that controls reception of a downlink control channel applied with the repetition transmission, based on at least one of a plurality of associated search space sets and a plurality of associated control resource sets obtained based on the information.Type: ApplicationFiled: September 10, 2021Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
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Publication number: 20250133598Abstract: To properly perform communication even in a case where communication is performed using a plurality of transmission points. A terminal according to an aspect of the present disclosure includes: a receiving section that receives a downlink control channel indicating transmission of a random access channel to at least one of a serving cell and a non-serving cell; and a control section that controls transmission of the random access channel on the basis of at least one of a random access channel configuration corresponding to a given cell and power information regarding a synchronization signal block corresponding to the given cell when the random access channel is transmitted on the basis of the downlink control channel.Type: ApplicationFiled: August 16, 2022Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun
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Publication number: 20250125933Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives an indication of a transmission configuration indication (TCI) state to be applied to a plurality of types of channels, and at least one of first configuration information related to a control resource set (CORESET) and second configuration information related to a search space, and a control section that judges, based on at least one of the first configuration information and the second configuration information, the TCI state to be applied to a specific CORESET related to terminal-specific and non-terminal-specific reception. The specific CORESET is a CORESET other than a CORESET configured by using a system information block or a master information block. According to one aspect of the present disclosure, it is possible to appropriately recognize a TCI state.Type: ApplicationFiled: February 3, 2022Publication date: April 17, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang
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Patent number: 12278785Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that performs channel state information (CSI) measurement regarding a plurality of panels; and a control section that determines which results of the CSI measurement related to which panel are to be included in a CSI report. According to one aspect of the present disclosure, a panel specific CSI report can be appropriately used.Type: GrantFiled: February 4, 2020Date of Patent: April 15, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Shaozhen Guo, Jing Wang, Xiaolin Hou
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Publication number: 20250119927Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information related to a single frequency network (SFN) physical downlink shared channel (PDSCH), and a control section that determines, based on a condition related to offset from reception of downlink control information (DCI) for scheduling the SFN PDSCH until reception of the SFN PDSCH, whether the DCI includes a transmission configuration indication (TCI) field, and the configuration information, a TCI state to be applied to the SEN PDSCH. According to one aspect of the present disclosure, it is possible to appropriately control operation related to a TCI state/default TCI state.Type: ApplicationFiled: January 21, 2022Publication date: April 10, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20250119256Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives downlink control information including a resource assignment of a physical uplink shared channel and a value of an antenna port indication, and a control section that controls transmission of a demodulation reference signal (DMRS), based on an association between the value, the number of code division multiplexing (CDM) groups, and a DMRS port. The number of the CDM groups for DMRS configuration type 1 is larger than 2, and the number of the CDM groups for DMRS configuration type 2 is larger than 3. According to one aspect of the present disclosure, an appropriate number of DMRS ports can be used.Type: ApplicationFiled: February 10, 2022Publication date: April 10, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Patent number: 12273158Abstract: A terminal according to one aspect of the present disclosure includes: a control section that determines a quasi-co-located (QCL) parameter for downlink, when spatial relation information and path-loss reference signal information for uplink transmission are not provided and default spatial relation and path-loss reference signal enabling information for the uplink transmission is provided, in a case where a plurality of different TCI states mapped to a transmission configuration indication (TCI) code point are not provided; and a transmitting section that transmits the uplink transmission by using the QCL parameter. According to one aspect of the present disclosure, a spatial relation can be appropriately determined.Type: GrantFiled: April 15, 2020Date of Patent: April 8, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Patent number: 12273160Abstract: A terminal for performing Channel State Information (CSI) reporting for type II port selection codebook includes a receiver that receives beamformed CSI reference signal (RS) ports comprising spatial domain (SD) beams and frequency domain (FD) base. In addition, the terminal includes a processor that, using higher layer signaling, configures a number of SD beam selection and a number of FD base selection, and selects a first value from a first set of values for the number of SD beam selection and a second value from a second set of values for the number of FD base section. The terminal further includes a transmitter that transmits the first value and the second values.Type: GrantFiled: December 16, 2021Date of Patent: April 8, 2025Assignee: NTT DOCOMO, INC.Inventors: Nadisanka Rupasinghe, Yuki Matsumura
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Publication number: 20250112747Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a reference signal (RS); and a control section that, when a single frequency network (SFN) scheme is configured and at least one of a radio link failure (radio link monitoring (RLM))-RS and a beam failure detection (BFD)-RS is not configured, selects the RS corresponding to a control resource set (CORESET) determined based on a specific rule as at least one of the RLM-RS and the BFD-RS. According to one aspect of the present disclosure, at least one of RLM and BFD can be appropriately performed.Type: ApplicationFiled: February 10, 2022Publication date: April 3, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Patent number: 12267694Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a plurality of pieces of configuration information indicating a plurality of control resource sets, and a control section that, when the plurality of pieces of configuration information do not include a control resource set pool index for one or more control resource sets of the plurality of control resource sets, determines a value of the control resource set pool index for the one or more control resource sets. According to one aspect of the present disclosure, it is possible to appropriately determine an operation for multiple panels/TRPs.Type: GrantFiled: November 15, 2019Date of Patent: April 1, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo
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Patent number: 12267134Abstract: A terminal, as disclosed, includes: a processor that, for a plurality of physical downlink shared channels (PDSCHs) transmitted from a plurality of transmission reception points (TRPs), respectively, controls transmission of capability information for indicating a first maximum number regarding a number of layers per PDSCH and a second maximum number regarding a total number of layers of the plurality of PDSCHS; and a receiver that receives the plurality of PDSCHs. The processor controls reporting of a single channel state information (CSI) for the plurality of TRPs, the single CSI indicating a first rank and a second rank that are determined according to a set of ranks based on higher layer signaling. In other aspects, a radio communication method, a base station, and a system are also disclosed.Type: GrantFiled: June 14, 2024Date of Patent: April 1, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Shaozhen Guo, Xiaolin Hou
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Patent number: 12267156Abstract: A terminal is disclosed including a processor that determines, when retransmission of a side channel in a communication between a plurality of terminals is performed, a modulation order for the retransmission of the side channel by using a MCS table based on side control information; a transmitter that transmits the side channel based on the determined modulation order, and a receiver that receives downlink control information including at least a UL-SCH indicator field, wherein the processor, if retransmission of an uplink shared channel is performed, determines a time density of a phase tracking reference signal (PTRS) based on whether a modulation and coding scheme (MCS) index is larger than a certain value, and wherein the transmitter transmits the PTRS. In other aspects, a radio communication method, and a system are also disclosed.Type: GrantFiled: February 16, 2023Date of Patent: April 1, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Shohei Yoshioka, Satoshi Nagata
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Publication number: 20250106667Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a configuration indicating X channel measurement resources for X transmission/reception points (TRPs) for coherent joint transmission; and a control section that controls channel state information (CSI) reporting including X pieces of CSI corresponding to the X respective channel measurement resources, based on the configuration. According to one aspect of the present disclosure, it is possible to appropriately perform CSI reporting for CJT.Type: ApplicationFiled: January 28, 2022Publication date: March 27, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen