Patents Assigned to NTT DoCoMo, Inc.
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Publication number: 20240196250Abstract: A terminal according to one aspect of the present disclosure includes: a control section that determines whether an event to be a trigger of a CSI report occurs, based on a measurement result related to channel state information (CSI) of at least one of a serving cell, a neighbour cell, a primary cell, a primary secondary cell, and a secondary cell; and a transmitting section that transmits an aperiodic CSI report when the event occurs. According to one aspect of the present disclosure, an aperiodic CSI report can be appropriately performed.Type: ApplicationFiled: March 29, 2022Publication date: June 13, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Publication number: 20240196432Abstract: The terminal includes a reception unit that performs LBT (listen before talk), a transmission unit that performs transmission within COT (channel occupancy time) acquired based on a result of the LBT, and a control unit that determines a spatial filter to be applied to a sensing beam used for the LBT, based on a spatial filter to be applied to the transmission.Type: ApplicationFiled: March 23, 2022Publication date: June 13, 2024Applicant: NTT DOCOMO, INC.Inventors: Naoya Shibaike, Hiroki Harada, Satoshi Nagata
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Publication number: 20240195560Abstract: A wireless communication method for a terminal includes: receiving, via downlink control information (DCI) or higher layer signaling, configuration information including a parameter, configuring Aperiodic Sounding Reference Signal (A-SRS) transmission based on the parameter; and reporting, based on a usage setting, capability information including a minimum timing requirement between A-SRS triggering Physical Downlink Control Channel (PDCCH) and SRS resources in a resource set.Type: ApplicationFiled: March 15, 2022Publication date: June 13, 2024Applicant: NTT DOCOMO, INC.Inventors: Nadisanka Rupasinghe, Yuki Matsumura
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Publication number: 20240195566Abstract: A terminal includes: a reception unit configured to receive, from a base station, an indication of activation or deactivation of a secondary cell and a trigger indication of a temporary RS (Reference Signal) via a single MAC-CE (Medium Access Control-Control Element); a control unit configured to perform synchronization and measurement in the secondary cell by using the temporary RS, based on the trigger indication in a case where the indication is for activating the secondary cell; and a transmission unit configured to transmit, to the base station, a CSI (Channel State Information) report based on a measurement result of the temporary RS.Type: ApplicationFiled: May 10, 2021Publication date: June 13, 2024Applicant: NTT DOCOMO, INC.Inventor: Tomoya Ohara
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Publication number: 20240195577Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a configuration for two physical downlink control channel (PDCCH) candidates linked with each other; and a control section that uses, when downlink control information transmitted by using the two PDCCH candidates corresponds to a reference PDCCH candidate of the two PDCCH candidates, the downlink control information for uplink control channel resource determination. According to one aspect of the present disclosure, it is possible to support PDCCH repetition transmission appropriately.Type: ApplicationFiled: March 31, 2021Publication date: June 13, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
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Patent number: 12010680Abstract: A user terminal includes a transmitting section that performs first signal transmission during a first period within a periodic time interval, and a control section that determines, based on priority of the first signal transmission, whether to perform second signal transmission during a second period after the first period within the time interval. According to an aspect of the present disclosure, resource utilization efficiency can be increased.Type: GrantFiled: March 28, 2019Date of Patent: June 11, 2024Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Shohei Yoshioka, Daisuke Murayama, Satoshi Nagata
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Patent number: 12010656Abstract: Provided is a user equipment including a transmitting unit that transmits a packet for terminal-to-terminal direct communication and a control unit that selects a transmission resource for transmitting the packet from candidate resources in a resource selection window having a predetermined range.Type: GrantFiled: February 15, 2019Date of Patent: June 11, 2024Assignee: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Satoshi Nagata, Huan Wang, Xiaolin Hou
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Patent number: 12010700Abstract: A terminal is disclosed that includes: a control section that determines, in a case where conditions (1) and (2) below are both satisfied, a quasi-co-location (QCL) assumption of an aperiodic channel state information-reference signal (AP CSI-RS), based on a control resource set (CORESET) having a specific CORESET-ID in a latest slot in which one or more CORESETs are monitored, (1) a scheduling offset between reception of a downlink control channel for communicating downlink control information scheduling the AP-CSI-RS and reception of the AP CSI-RS being less than a value of a period for a reported beam switch, and (2) in a symbol identical to a symbol of the AP-CSI-RS, there being no other downlink signals with indicated transmission configuration indication state (TCI state) or there being other downlink signals without the indicated TCI state; and a receiving section that receives the AP-CSI-RS by using the QCL assumption.Type: GrantFiled: February 22, 2019Date of Patent: June 11, 2024Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Patent number: 12010534Abstract: The present invention is designed so that DL controls channels are monitored adequately even when the unit of scheduling in the time direction is subject to control. According to the present invention, a user terminal monitors a downlink (DL) control channel and receives downlink control information (DCI), and this user terminal has a receiving section that receives time interval information, which shows a time interval for monitoring the DL control channel, and a control section that controls monitoring of the DL control channel based on the time interval information.Type: GrantFiled: September 29, 2017Date of Patent: June 11, 2024Assignee: NTT DOCOMO, INC.Inventors: Hiroki Harada, Kazuki Takeda, Satoshi Nagata
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Patent number: 12010064Abstract: A user terminal according to one aspect of the present disclosure has a transmission section that transmits uplink control information by using an uplink shared channel, and a control section that selects resource elements, which are provided at given frequency intervals, and which are for mapping the uplink control information, in a symbol adjacent to a symbol for a demodulation reference signal for the uplink shared channel.Type: GrantFiled: October 9, 2018Date of Patent: June 11, 2024Assignee: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Kazuki Takeda, Satoshi Nagata
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Patent number: 12010542Abstract: A user terminal includes a control section that measures a plurality of Signal to Interference plus Noise Ratios (SINRs), based on one or more signal measurement resources and a plurality of interference measurement resources, and a transmitting section that reports one or more SINRs among the plurality of the SINRs and one or more indices associated with the resources used for the one or more SINRs. According to one aspect of the present disclosure, appropriate beam reporting can be performed.Type: GrantFiled: March 29, 2019Date of Patent: June 11, 2024Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Xiaolin Hou
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Patent number: 12009929Abstract: According to one aspect of the present disclosure, a user terminal includes a control section that determines, when an uplink control channel (PUCCH) repetition and a dynamic hybrid automatic repeat reQuest acknowledgement (HARQ-ACK) codebook are configured, a codebook for PUCCH transmission per slot based on at least one of a total downlink assignment index (T-DAI), a counter downlink assignment index (C-DAI), a timing from reception of a physical downlink shared channel (PDSCH) to transmission of the HARQ-ACK corresponding to the PDSCH and repetition factor, and a transmitting section that transmits HARQ-ACK based on the codebook by applying PUCCH repetition to the HARQ-ACK. According to one aspect of the present disclosure, it is possible to appropriately transmit the UCI even when the PUCCH repetition is used.Type: GrantFiled: July 30, 2018Date of Patent: June 11, 2024Assignee: NTT DOCOMO, INC.Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Shaozhen Guo, Xiaolin Hou
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Publication number: 20240188016Abstract: A terminal according to an aspect of the present disclosure includes: a control section that controls one or more random access procedures; a receiving section that acquires, on the basis of the one or more random access procedures, a plurality of information related to a plurality of timing advances, each of the plurality of timing advances corresponding to a respective one of a plurality of base stations or transmission/reception points; and a transmitting section that performs a UL transmission on the basis of at least one of the plurality of information related to the plurality of timing advances.Type: ApplicationFiled: April 2, 2021Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Tomoya Ohara, Masaya Okamura, Hiroki Harada, Daisuke Kurita, Mayuko Okano
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Publication number: 20240187179Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives information related to a time window over a plurality of slots; and a control section that controls transmission of a plurality of demodulation reference signals in the plurality of slots. Amplitudes and phases of the plurality of demodulation reference signals have continuity. The time window includes a first time resource being not for uplink. According to one aspect of the present disclosure, channel estimation accuracy can be improved.Type: ApplicationFiled: March 31, 2021Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Daisuke Kurita, Shinya Kumagai, Hiroki Harada, Satoshi Nagata, Tomoya Ohara, Takuma Nakamura
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Publication number: 20240187984Abstract: A terminal according to one aspect of the present disclosure includes a control section that controls, in either state of an idle state or an inactive state, operation for at least one of reception of downlink data and transmission of uplink data, and a transmitting/receiving section that performs the operation without transmitting, before the operation, a random access preamble in the state. According to one aspect of the present disclosure, it is possible to reduce power consumption/latency.Type: ApplicationFiled: April 2, 2021Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Tomoya Ohara, Masaya Okamura, Hiroki Harada, Daisuke Kurita, Mayuko Okano
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Publication number: 20240188098Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives information indicating a plurality of transmission configuration indication (TCI) states, and receives downlink control information (DCI) indicating one or more TCI states out of the plurality of TCI states, and a control section that determines whether the DCI is DCI not indicating scheduling of a physical downlink shared channel nor a physical uplink shared channel, based on values of a plurality of specific fields included in the DCI, and applies the one or more TCI states to a plurality of types of signals. According to one aspect of the present disclosure, TCI state indication can be appropriately performed.Type: ApplicationFiled: March 31, 2021Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20240187161Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives a downlink signal with at least a part of parameters of the downlink signal being limited, in an initial access procedure; and a control section that controls transmission of an uplink signal with at least a part of parameters of the uplink signal being limited, in the initial access procedure. According to an aspect of the present disclosure, the payload size for configuration of the initial access can be reduced.Type: ApplicationFiled: March 31, 2021Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Daisuke Kurita, Hiroki Harada, Mayuko Okano, Satoshi Nagata, Tomoya Ohara, Masaya Okamura
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Publication number: 20240187178Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a list of a plurality of serving cells or a plurality of bandwidth parts and receives configuration information of a plurality of transmission configuration indication (TCI) states applicable to a plurality of types of channels; and a control section that determines a reference signal of a first quasi-co-location (QCL) type and a reference signal of a second QCL type to be applied to the plurality of serving cells or the plurality of bandwidth parts, based on a restriction related to the reference signal of the first QCL type and the reference signal of the second QCL type for a demodulation reference signal (DMRS) and the configuration information. According to one aspect of the present disclosure, it is possible to appropriately perform TCI state indication.Type: ApplicationFiled: February 19, 2021Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20240187186Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a channel state information reference signal (CSI-RS), and a control section that performs, by using a machine learning model trained based on first configuration of the CSI-RS, control of performing prediction based on second configuration of the CSI-RS. According to one aspect of the present disclosure, high-accuracy channel estimation, high-efficiency use of resources, and the like can be implemented.Type: ApplicationFiled: March 30, 2021Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Haruhi Echigo, Hiroki Harada, Daisuke Kurita, Yuki Matsumura, Naoya Shibaike, Satoshi Nagata
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Publication number: 20240185163Abstract: The present invention includes: a first data acquirer configured to, based on conversation data in a chat system, acquire a number of mentions provided by an evaluation target member of one team to each team within a first period; a first calculator configured to, based on the number of mentions provided by the evaluation target member to each team calculate a first proportion that is a proportion of the number of mentions provided by the evaluation target member to each team; and an estimator configured to, based on a relationship between a second proportion and a second indicator value, estimate a first indicator value corresponding to the first proportion, the second proportion being a proportion of a number of mentions provided by one member among a plurality of members of the organization to each team within a second period previous to the first period, the second indicator value being indicative of work engagement of the one member, the first indicator value being indicative of work engagement of the evType: ApplicationFiled: March 18, 2022Publication date: June 6, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki KATSUMATA, Hiroaki TANAKA, Kousuke KUBOTA