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公开(公告)号：US20210126742A1
公开(公告)日：2021-04-29
申请号：US17047612
申请日：2019-04-15
Applicant: NTT DOCOMO, INC.
Inventor： Shohei Yoshioka , Yuki Matsumura , Kazuki Takeda , Satoshi Nagata
Abstract: A user terminal includes: a transmitting section that transmits an uplink signal before connection establishment; and a control section that controls a repeated transmission of the uplink signal based on configuration information reported implicitly. According to an aspect of the present disclosure, repeated transmission before connection establishment is appropriately controlled.
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公开(公告)号：US10980050B2
公开(公告)日：2021-04-13
申请号：US15524774
申请日：2015-10-09
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Kazuki Takeda , Satoshi Nagata
Abstract: The present invention is designed so that it is possible to reduce the measurement-induced increase of load and power consumption in user terminals even when the number of component carriers that can be configured per user terminal is expanded. A user terminal communicates with a radio base station that configures groups (TAGs) comprised of one or more cells, and has a receiving section that receives information related to component carriers (CCs) included in the groups, and a measurement section that makes measurements on a per group basis based on the information related to the component carriers.
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公开(公告)号：US10980014B2
公开(公告)日：2021-04-13
申请号：US16337297
申请日：2017-09-29
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang , Na Li , Yong Li , Wenbo Wang
Abstract: The present invention is designed so that, when special subframes are allowed to transmit a PUSCH, the transmission of the PUSCH can be controlled adequately. According to the present invention, a user terminal has a receiving section that receives downlink control information (DCI) that schedules an uplink (UL) shared channel, and a control section that controls transmission of the UL shared channel by using a table that associates a subframe, in which the DCI is received, and a timing, at which the UL shared channel is transmitted, per UL/downlink (DL) configuration. The transmission timing in the table is determined based on a special subframe, which is allowed to transmit the UL shared channel, and a predetermined reference value, which is lower than 4 ms.
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公开(公告)号：US20210092756A1
公开(公告)日：2021-03-25
申请号：US16635366
申请日：2017-08-01
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
Abstract: In order to suppress deterioration of the communication quality also in the case of transmitting uplink data and uplink control information using an uplink shared channel in the future radio communication system, one aspect of a user terminal of the present invention has a transmitting section that transmits uplink data and uplink control information, and a control section that controls so as to select one of puncturing processing and rate matching processing to apply to the uplink data, based on an indication from a base station and/or a predetermined condition, in the case of multiplexing the uplink data and the uplink control information into an uplink shared channel to transmit.
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公开(公告)号：US10959186B2
公开(公告)日：2021-03-23
申请号：US16609144
申请日：2017-05-02
Applicant: NTT DOCOMO, INC.
Inventor： Shinpei Yasukawa , Kazuki Takeda , Satoshi Nagata , Shaozhen Guo
Abstract: A user equipment for performing radio communication with a base station in accordance with dynamic TDD (Time Division Duplex) is disclosed. An aspect of the present invention relates to a user equipment including a transmission and reception unit that transmits a radio signal to and receives a radio signal from a base station in accordance with dynamic TDD; and a transmission power configuration unit that configures uplink transmission power toward the base station, wherein the transmission power configuration unit configures the uplink transmission power in accordance with a dedicated scheme, a group common scheme or a combined scheme of the dedicated scheme and the group common scheme.
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Patent Agency Ranking
公开(公告)号：US10952195B2
公开(公告)日：2021-03-16
申请号：US16099596
申请日：2017-05-09
Applicant: NTT DOCOMO, INC.
Inventor： Yousuke Sano , Kazuaki Takeda , Kazuki Takeda , Satoshi Nagata
Abstract: Provided is a technique that transmits data, which is transmitted without obtaining transmission permission, with low delay and high reliability.
An aspect of the invention relates to a transmitter including a resource determination unit that determines whether a first type of resource has been allocated in response to the generation of a transmission event for a predetermined type of information and a transmitting unit that transmits the predetermined type of information to a receiver, using the first type of resource, without obtaining transmission permission, when the first type of resource has been allocated.-
公开(公告)号：US20210076442A1
公开(公告)日：2021-03-11
申请号：US17048241
申请日：2019-04-15
Applicant: NTT DOCOMO, INC.
Inventor： Yuki Matsumura , Kazuki Takeda , Satoshi Nagata , Min Liu , Jing Wang , Xiaolin Hou
Abstract: A terminal is disclosed including a processor that starts a timer based on a beam failure instance counter; a receiver that receives a reference signal for identifying a candidate beam; and a transmitter that, if the reference signal has layer 1 reference signal received power (L1-RSRP) exceeding a threshold value before the timer expires, and if there is at least one of contention-free random access (CFRA) resources corresponding to the reference signal, transmits a random access preamble using the at least one of CFRA resources. In other aspects, a radio communication method and a base station are also disclosed.
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公开(公告)号：US20210067275A1
公开(公告)日：2021-03-04
申请号：US16958478
申请日：2017-12-27
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
Abstract: To prevent deterioration in communication throughput and so on also in a case that multiplexing of uplink control information on an uplink data channel is supported, one aspect of a base station according to the present disclosure includes a transmitting section that transmits downlink control information indicating UL transmission, and DL data, and a control section that controls scheduling such that the number of bits of a acknowledgement signal for the DL data, the acknowledgement signal being to be multiplexed on a first uplink shared channel that is transmitted based on the downlink control information and/or a second uplink shared channel that is transmitted independently of the downlink control information, is up to a given value.
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公开(公告)号：US20210067274A1
公开(公告)日：2021-03-04
申请号：US16958417
申请日：2017-12-27
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
Abstract: To prevent deterioration in communication throughput and so on also in a case that multiplexing of uplink control information on an uplink data channel is supported, one aspect of a user terminal according to the present disclosure includes: a transmitting section that transmits an acknowledgement signal by multiplexing the acknowledgement signal on a first uplink shared channel used to perform transmission based on downlink control information for indicating UL transmission from a radio base station and/or a second uplink shared channel used to perform transmission regardless of downlink control information for indicating UL transmission; and a control section that determines a number of bits of the acknowledgement signal to be multiplexed on the first uplink shared channel and a number of bits of the acknowledgement signal to be multiplexed on the second uplink shared channel, based on different pieces of information.
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公开(公告)号：US20210067194A1
公开(公告)日：2021-03-04
申请号：US16644778
申请日：2017-09-07
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Xiaolin Hou
Abstract: A terminal is disclosed including a processor that determines an offset for a second frequency hop in a frequency hopping on an uplink shared channel based on an uplink Bandwidth Part (UL BWP) configuration; and a transmitter that transmits the uplink shared channel, wherein the UL BWP configuration includes information indicating a number of physical resource blocks (PRBs) in the UL BWP. In other aspects, a base station and a radio communication method for a terminal are also disclosed.
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