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: 20240015753Abstract: A terminal according to one aspect of the present disclosure includes: a control section that determines two values of a power control parameter when physical uplink control channel (PUCCH) spatial relation information is not provided; and a transmitting section that transmits a PUCCH by using at least one of the two values of the power control parameter and one or more transmission occasions. The two values are associated with two respective indices. The two indices are either two index values of a control resource set (CORESET) pool index or two index values of a transmission configuration indication (TCI) state associated with one codepoint of a field in downlink control information. According to one aspect of the present disclosure, a power control parameter can be appropriately determined.Type: ApplicationFiled: December 3, 2020Publication date: January 11, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
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Publication number: 20240014972Abstract: A terminal according to an aspect of the present disclosure includes: a reception section that receives a configuration indicating an uplink period and a downlink period and receives a slot offset for aperiodic sounding reference signal (SRS) transmission; and a control section that determines whether or not to receive at least one of a first piece of downlink control information that triggers the SRS transmission and a second piece of downlink control information indicating a slot format. According to an aspect of the present disclosure, SRS transmission is flexibly controlled.Type: ApplicationFiled: August 17, 2021Publication date: January 11, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Patent number: 11870536Abstract: A terminal (200) configures PCell and SCell simultaneously. The terminal (200) includes a receiving unit (220) that receives a reference signal for use in a detection of a beam failure in the SCell, and a controller (270) that performs at least one of the detection of the beam failure and a beam failure recovery request based on a reception quality of the reference signal. The controller (270) performs at least one of the detection of the beam failure and the beam failure recovery request when a predetermined condition is satisfied.Type: GrantFiled: June 21, 2019Date of Patent: January 9, 2024Assignee: NTT DOCOMO, INC.Inventors: Tooru Uchino, Yuki Matsumura, Hideaki Takahashi
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Patent number: 11871290Abstract: A user terminal includes a control section that, in a case where a maximum number of secondary cells to which a beam failure recovery is applied is 1 and where a specific secondary cell for an uplink control channel is configured, applies the beam failure recovery to the specific secondary cell, and a transmitting section that transmits, in the beam failure recovery, a beam failure recovery request to one of a plurality of cells. According to one aspect of the present disclosure, a BFR procedure can be appropriately executed.Type: GrantFiled: December 21, 2018Date of Patent: January 9, 2024Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20240008052Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a medium access control-control element (MAC CE) to activate two transmission configuration indication (TCI) states for one codepoint of a field in downlink control information, and a control section that determines one or more reference signals in a case where a reference signal for beam failure detection (BFD) is not configured, the one or more reference signals being used for BFD. According to one aspect of the present disclosure, it is possible to appropriately determine a BFD RS.Type: ApplicationFiled: November 2, 2021Publication date: January 4, 2024Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Patent number: 11864191Abstract: A user terminal according to one aspect of the present disclosure includes: a transmitting/receiving section that receives or transmits a shared channel based on fallback Downlink Control Information (DCI); and a control section that makes a given assumption on a density of a Phase Tracking Reference Signal (PTRS) of the shared channel scheduled by the fallback DCI. According to one aspect of the present disclosure, it is possible to appropriately determine a PTRS density.Type: GrantFiled: August 17, 2018Date of Patent: January 2, 2024Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Shohei Yoshioka, Kazuki Takeda, Satoshi Nagata
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Publication number: 20230413080Abstract: A terminal according to one aspect of the present disclosure includes a transmitting section that transmits information related to beam failure detected for each of plurality of transmission/reception points by using a media access control control element (MAC CE), and a control section that, when a DL signal corresponding to the information related to the beam failure is received, controls at least one of an update on a condition applied to UL transmission and an update on a condition applied to DL reception for each transmission/reception point.Type: ApplicationFiled: October 13, 2020Publication date: December 21, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Publication number: 20230413283Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives TCI state information indicating a plurality of transmission configuration indication (TCI) states applicable to multiple types of channels and that receives first downlink control information indicating one TCI state of the plurality of TCI states, and a control section that applies the one TCI state to a first signal after timing at which specific time passes from any one of the first downlink control information and a first uplink channel based on the first downlink control information. According to one aspect of the present disclosure, it is possible to appropriately determine information related to QCL.Type: ApplicationFiled: October 2, 2020Publication date: December 21, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20230413287Abstract: To appropriately perform communication even when transmission with repetition is applied to DL channels transmitted from one or more TRPs. A terminal according to an aspect of the present disclosure includes a receiving section that receives multiple downlink control information transmitted using respective downlink control channels to which transmission with repetition is applied; and a control section that controls, when a downlink shared channel overlaps a resource in a control resource set including a downlink control channel to which the transmission with repetition is applied, not to use resources corresponding to a downlink control channel scheduling the downlink shared channel and a demodulation reference signal resource for an associated downlink control channel, for the downlink shared channel.Type: ApplicationFiled: November 2, 2021Publication date: December 21, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagato, Weiqi Sun, Jing Wang, Lan Chen
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Patent number: 11848891Abstract: A user terminal according to the present invention includes: a transmission section that transmits Uplink Control Information (UCI) by using an uplink control channel; and a control section that, when one or more resource sets each including one or more resources for the uplink control channel are configured, determines a resource used for transmission of the UCI based on a given field value in Downlink Control Information (DCI) and implicit indication information from a resource set selected based on a number of bits of the UCI.Type: GrantFiled: January 19, 2018Date of Patent: December 19, 2023Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
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Patent number: 11848734Abstract: To appropriately control a plurality of CSI reports of different types, a user terminal according to one aspect of the present disclosure includes: a transmitting section that transmits channel state information (CSI) reports of different types; and a control section that, when transmission durations of a plurality of the CSI reports overlap, drops a given CSI report according to priority or multiplexes a given CSI report on a given uplink channel, based on a type of each of the plurality of the CSI reports and a type of an uplink channel used for transmission of each of the plurality of the CSI reports.Type: GrantFiled: August 10, 2018Date of Patent: December 19, 2023Assignee: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Yuki Matsumura, Satoshi Nagata
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Publication number: 20230397226Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives DCI based on a specific assumption regarding a size of a sounding reference signal resource indicator (SRI) field of the DCI scheduling a physical uplink shared channel (PUSCH) when a control resource set (CORESET) pool index is configured to at least one CORESET, and a control section that determines spatial relation information for the PUSCH based on at least one of the SRI field and a CORESET pool index of a CORESET in which the DCI is detected. According to one aspect of the present disclosure, UL transmission can be appropriately controlled even in a case where multi-TRPs are used.Type: ApplicationFiled: October 22, 2020Publication date: December 7, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang
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Publication number: 20230397121Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives information of a plurality of power control parameters corresponding to one code point of a sounding reference signal resource indicator (SRI) field; and a control section that determines transmit power for an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) by using one of the plurality of power control parameters selected based on a value of the SRI field of downlink control information (DCI) for scheduling the PUSCH. According to one aspect of the present disclosure, UL transmission can be appropriately controlled even in a case where multi-TRPs are used.Type: ApplicationFiled: October 23, 2020Publication date: December 7, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
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Publication number: 20230388820Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives one or more beam failure detection reference signals (BFD-RSs) corresponding to a plurality of transmission/reception points, and a control section that, when radio link quality of at least part of configured BFD-RSs is less than a threshold value, controls beam failure recovery procedure in units of one transmission/reception point or in units of a transmission/reception point set including a plurality of transmission/reception points.Type: ApplicationFiled: October 13, 2020Publication date: November 30, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
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Publication number: 20230389038Abstract: A terminal according to an aspect of the present disclosure includes a receiving section that receives TCI state information indicating a plurality of transmission configuration indication (TCI) states applicable to a plurality of kinds of channels and receives downlink control information indicating resources of one or more channels, and a control section that determines a first TCI state applied to a signal after the one or more channels and determines a second TCI state applied to the one or more channels, on the basis of the TCI state information and the downlink control information. According to an aspect of the present disclosure, the information related to QCL can be appropriately determined.Type: ApplicationFiled: September 30, 2020Publication date: November 30, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun
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Publication number: 20230379936Abstract: A terminal according to an aspect of the present disclosure includes a receiving section that receives TCI state information indicating a plurality of transmission configuration indication (TCI) states applicable to a plurality of kinds of channels and receives downlink control information, and a control section that determines one of the plurality of TCI states on the basis of the downlink control information and does not use the downlink control information for scheduling a channel. According to an aspect of the present disclosure, the information related to QCL can be appropriately determined.Type: ApplicationFiled: September 30, 2020Publication date: November 23, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun
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Publication number: 20230379900Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives a plurality of configured grant configurations; and a control section that uses one or more spatial relations for transmission based on each of the plurality of configured grant configurations. According to an aspect of the present disclosure, it is possible to appropriately determine a QCL parameter used for a configured grant transmission.Type: ApplicationFiled: October 9, 2020Publication date: November 23, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
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Publication number: 20230379902Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a TCI list indicating a plurality of transmission configuration indication (TCI) states applicable to multiple types of channels, that receives an update list indicating a plurality of serving cells, and that receives indication information to indicate one or more TCI states out of the plurality of TCI states in one of the plurality of serving cells, and a control section that applies the one or more TCI states to the multiple types of channels in the plurality of serving cells. According to one aspect of the present disclosure, it is possible to appropriately determine information related to QCL.Type: ApplicationFiled: October 16, 2020Publication date: November 23, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20230379835Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information indicating a plurality of transmission configuration indication (TCI) states applicable to multiple types of channels and that receives indication information indicating one TCI state out of the plurality of TCI states, and a control section that applies the one TCI state to the multiple types of channels and that applies, to an uplink channel out of the multiple types of channels, one power control parameter corresponding to the one TCI state out of a plurality of power control parameters, the plurality of power control parameters being associated with the plurality of respective TCI states. According to one aspect of the present disclosure, it is possible to appropriately determine information related to QCL.Type: ApplicationFiled: October 16, 2020Publication date: November 23, 2023Applicant: NTT DOCOMO, INCInventors: Yuki Matsumura, Satoshi Nagata
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Publication number: 20230379932Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives first downlink control information indicating a transmission configuration indication (TCI) state applicable to multiple types of channels, and a control section that applies the TCI state to the multiple types of channels after timing at which specific time passes from an end of operation for any one of transmission of an uplink channel based on the first downlink control information and reception of second downlink control information after the first downlink control information. According to one aspect of the present disclosure, it is possible to appropriately determine information related to QCL.Type: ApplicationFiled: October 15, 2020Publication date: November 23, 2023Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun