Patents by Inventor Satoshi Nagata
Satoshi Nagata 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: 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
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Publication number: 20250105957Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a first parameter for transmission to a first transmission/reception point (TRP) and a second parameter for transmission to a second TRP; and a control section that controls transmission of one transport block over N slots and applies N parameters to the N respective slots, the N parameters including at least one of the first parameter and the second parameter, N being an integer equal to or greater than two. According to one aspect of the present disclosure, it is possible to appropriately carry out transmission of data over a plurality of slots in a case where multi-TRP is configured/indicated.Type: ApplicationFiled: January 14, 2022Publication date: March 27, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Haruhi Echigo, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
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Publication number: 20250105989Abstract: This terminal comprises a control unit that determines a cell to transmit control information on the basis of a timing pattern indicating the order of cells to transmit the control information, and a transmitting unit that transmits the control information in the determined cell. If the timing pattern includes Scell to be de-activated, the timing pattern is changed before Scell is de-activated.Type: ApplicationFiled: July 26, 2021Publication date: March 27, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Takahashi, Satoshi Nagata, Qiping Pi, Jing Wang, Lan chen
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Publication number: 20250106080Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a reference signal associated with a second physical cell ID (PCI) different from a first physical cell ID (PCI) corresponding to a serving cell; and a control section that controls, by using the reference signal, at least one of radio link monitoring (RLM), beam failure detection (BFD), and beam failure recovery (BFR). According to one aspect of the present disclosure, an RS to be used for at least one of the RLM, BFD, and BFR can be appropriately determined.Type: ApplicationFiled: July 29, 2021Publication date: March 27, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Patent number: 12261688Abstract: A terminal receives a radio frame having a second slot pattern to be used in a case in which a modulation system (FTN) different from a modulation system in a case of using a first slot pattern is applied. The terminal applies for the second slot pattern a configuration of an uplink and a downlink according to a time division duplex in the radio frame by using a reference subcarrier spacing same as that for the first slot pattern.Type: GrantFiled: August 8, 2019Date of Patent: March 25, 2025Assignee: NTT DOCOMO, INC.Inventors: Hiroki Harada, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
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Publication number: 20250097719Abstract: A terminal includes: a communication unit configured to perform transmission and reception in a first RAT (Radio Access Technology) and to perform sensing in a second RAT; and a control unit configured to control communications in the first RAT. The communication unit receives information related to a first resource reservation by another terminal in the first RAT, the communication unit detects information related to a second resource reservation by another terminal in the second RAT, the control unit determines a set of resources based on a result of performing, based on information related to the first resource reservation, resource exclusion from available resource candidates in the first RAT in a physical layer, and selects a resource from the set of resources based on the information related to the second resource reservation in a MAC (Medium Access Control) layer, and the communication unit performs transmission to another terminal by using the selected resource.Type: ApplicationFiled: January 19, 2022Publication date: March 20, 2025Applicant: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Naoya Shibaike, Satoshi Nagata
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Publication number: 20250097909Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives configuration information including one or more of time resource configurations and/or frequency resource configurations; and a control section that determines, based on the configuration information and an ID related to a Public Land Mobile Network (PLMN), at least one of a time resource and a frequency resource to be used for at least one of a downlink signal and an uplink signal. An aspect of the present disclosure allows operation of communication to be flexibly performed between operators.Type: ApplicationFiled: January 17, 2022Publication date: March 20, 2025Applicant: NTT DOCOMO, INC.Inventors: Shinya Kumagai, Mayuko Okano, Hiroki Harada, Satoshi Nagata
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Publication number: 20250097981Abstract: A terminal according to one aspect of the present disclosure includes: a transmitting section that transmits a message in a random access procedure in a physical uplink shared channel; and a control section that controls a plurality of repetitions of at least one of reception of a downlink channel for scheduling the physical uplink shared channel and transmission of a channel the physical uplink shared channel. According to one aspect of the present disclosure, coverage can be improved by taking account of overhead.Type: ApplicationFiled: July 30, 2021Publication date: March 20, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Haruhi Echigo, Hiroki Harada, Naoya Shibaike, Satoshi Nagata
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Patent number: 12256336Abstract: A terminal according to an aspect of the present disclosure includes a receiving section that receives a pathloss reference signal, and a control section that calculates a pathloss for transmission power control on the basis of layer 1 (L1)-reference signal received power (RSRP) for the pathloss reference signal when the pathloss reference signal is updated by a media access control-control element (MAC CE), and a measurement condition is met. According to an aspect of the present disclosure, the pathloss can be appropriately calculated.Type: GrantFiled: November 8, 2019Date of Patent: March 18, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Yuichi Kakishima, Satoshi Nagata
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Patent number: 12255746Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives downlink control information for releasing a plurality of semi-persistent schedulings (SPSs); and a control section that performs control of including a valid Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) corresponding to the downlink control information at at least one of a plurality of positions of HARQ-ACKs corresponding to downlink shared channel (Physical Downlink Shared Channel (PDSCH)) reception of the plurality of SPSs in a semi-static HARQ-ACK codebook. According to an aspect of the present disclosure, the HARQ-ACK codebook can be appropriately determined even when joint SPS release is used.Type: GrantFiled: September 17, 2019Date of Patent: March 18, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Takahashi, Satoshi Nagata, Xiaohong Zhang, Shaozhen Guo, Lihui Wang, Xiaolin Hou
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Patent number: 12255707Abstract: A terminal includes a reception unit configured to receive information associated with a signal transmitted to an apparatus other than the terminal, in MU-MIMO (MultiUser-Multiple Input Multiple Output) and a reference signal from a base station, a control unit configured to estimate interference from the signal transmitted to the apparatus other than the terminal to a signal transmitted to the terminal, based on the information associated with the signal transmitted to the apparatus other than the terminal and the reference signal, and a communication unit configured to suppress the interference and receive a data signal from the base station.Type: GrantFiled: August 15, 2019Date of Patent: March 18, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuichi Kakishima, Yuki Matsumura, Satoshi Nagata
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Publication number: 20250089061Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a Medium Access Control control element (MAC Control Element (CE)) including a field indicating a time period from a given timing until activation of a transmission configuration indication state (TCI state), and a control section that controls the activation of the TCI state based on the MAC CE. According to one aspect of the present disclosure, it is possible to implement suitable maintenance of communication quality.Type: ApplicationFiled: August 5, 2021Publication date: March 13, 2025Applicant: NTT DOCOMO, INC.Inventors: Haruhi Echigo, Hiroki Harada, Yuki Matsumura, Naoya Shibaike, Satoshi Nagata
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Publication number: 20250089065Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a configuration indicating that disabling or enabling of a transform precoder for a physical downlink shared channel (PUSCH) is dynamically switched by at least one of downlink control information (DCI) and a Medium Access Control Control Element (MAC CE), and a control section that uses, as a period from reception of the DCI until transmission of the PUSCH, a second period longer than a first period in a case where the waveform is not switched. According to one aspect of the present disclosure, it is possible to easily perform switching of a waveform.Type: ApplicationFiled: August 4, 2021Publication date: March 13, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Akihito Hanaki, Tianyang Min, Keisuke Saito, Hidekazu Shimodaira, Satoshi Nagata
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Publication number: 20250089068Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives control information for mapping one or more TCI states to a codepoint of one transmission configuration indication (TCI) field and that receives one or more pieces of downlink control information (DCI) for indicating a first TCI state applicable to a plurality of types of first signals and a second TCI state applicable to a plurality of types of second signals, and a control section that applies the first TCI state to the first signals and that applies the second TCI state to the second signals, based on the control information and the codepoint of the TCI field included in the DCI.Type: ApplicationFiled: January 7, 2022Publication date: March 13, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun
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Patent number: 12250692Abstract: The included are a control unit that determines a configuration for a transmission of a scheduling request based on whether the scheduling request is for a communication between a base station apparatus and the user equipment or the scheduling request is for a communication between the user equipment and another user equipment; a transmitting unit that transmits the scheduling request by using the configuration for the transmission of the determined scheduling request; and a receiving unit that receives a scheduling grant based on the scheduling request.Type: GrantFiled: December 27, 2018Date of Patent: March 11, 2025Assignee: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Satoshi Nagata, Huan Wang
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Patent number: 12250649Abstract: A terminal includes a reception unit that receives a synchronization signal block in an unlicensed band of a high frequency band higher than or equal to a frequency band of a frequency range 2 (FR2), the FR2 being in a range including a frequency range 1 (FR1) that is a low frequency band and the FR2 that is a high frequency band in a new radio (NR) system; and a control unit that identifies, based on the received synchronization signal block, an index of a candidate position for a transmission corresponding to the received synchronization signal block, from among candidate positions for transmitting a synchronization signal block, the number of the candidate positions being greater than a predetermined number.Type: GrantFiled: January 31, 2020Date of Patent: March 11, 2025Assignee: NTT DOCOMO, INC.Inventors: Hiroki Harada, Satoshi Nagata, Jing Wang
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Patent number: 12250673Abstract: In order to appropriately control reception of downlink control information, a user terminal according to one aspect of the present disclosure includes: a receiving section that receives first downlink control information and second downlink control information to which at least one of different Radio Network Temporary Identifiers (RNTIs), different modulations and coding tables, and different transmission parameters are applied; and a control section that stores the first downlink control information and the second downlink control information thus received so that the number of pieces of the first downlink control information and the second downlink control information to store do not exceed a given number.Type: GrantFiled: September 21, 2018Date of Patent: March 11, 2025Assignee: NTT DOCOMO, INC.Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
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Patent number: 12250681Abstract: A terminal includes a control unit that calculates a size of a transport block (TBS) to be transmitted on a Physical Sidelink Shared Channel (PSSCH) by applying a TBS determination method in a case where a Physical Sidelink Control Channel (PSCCH) and the PSSCH are to be frequency division multiplexed in a portion of a time resource of the PSSCH; and a transmitting unit that transmits the PSCCH and the PSSCH.Type: GrantFiled: October 9, 2019Date of Patent: March 11, 2025Assignee: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Satoshi Nagata
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Publication number: 20250081013Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that computes one or more radio link qualities corresponding to one or more reference signals; and a control section that performs control, based on the one or more radio link qualities, to include information related to a radio link quality corresponding to which one of the one or more reference signals, in a channel state information (CSI) report. According to one aspect of the present disclosure, preferable channel estimation/resource use is enabled.Type: ApplicationFiled: August 5, 2021Publication date: March 6, 2025Applicant: NTT DOCOMO, INC.Inventors: Haruhi Echigo, Hiroki Harada, Yuki Matsumura, Naoya Shibaike, Satoshi Nagata
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Publication number: 20250081116Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives first information including a plurality of sets of a plurality of transmission power control parameters and second information related to a transmission configuration indication (TCI) state corresponding to one of the sets, and a control section that performs, on the basis of the first information and the second information, transmission power control per TCI state to be applied to at least one of a specific uplink channel and a specific uplink signal. According to one aspect of the present disclosure, it is possible to appropriately perform transmission power control for a UL channel/signal even when a TCI state applicable to a plurality of channels/signals is used.Type: ApplicationFiled: August 5, 2021Publication date: March 6, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang