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公开(公告)号：US12108476B2
公开(公告)日：2024-10-01
申请号：US17615727
申请日：2019-06-07
申请人： NTT DOCOMO, INC.
发明人： Hideaki Takahashi , Kazuaki Takeda , Tianyang Min
摘要： A terminal includes a reception unit for receiving, from a base station that is a master node, a first message to configure communications with a master cell group and a secondary cell group, a communication unit for performing the communications with the master cell group and the secondary cell group configured that are based on the first message, a control unit for detecting an occurrence of a failure in communications with the secondary cell group, and a transmission unit for transmitting, when the control unit detects the occurrence of the failure in the communications with the secondary cell group, a second message including information indicating the occurrence of the failure in the secondary cell group, wherein the control unit includes location information in the second message when the first message is configured to have information indicating that the location information is to be included in the second message.
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公开(公告)号：US12047822B2
公开(公告)日：2024-07-23
申请号：US17431649
申请日：2019-03-06
申请人： NTT DOCOMO, INC.
CPC分类号： H04W36/0069 , H04W36/08 , H04W76/16 , H04W76/30
摘要： A base station includes: a processor that sets a value in a second field when a CG-ConfigInfo message includes the second field other than a first field for a configuration of a terminal, the CG-ConfigInfo message being a request for configuring, modifying, or releasing a cell group of a secondary base station; and a transmitter that transmits the message to another base station. Upon addition and change of the cell group of the secondary base station, the CG-ConfigInfo message mandatorily includes ue-CapabilityInfo, and the ue-CapabilityInfo includes Multi Radio Access Technology dual connectivity (MRDC) capability and New Radio (NR) capability.
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公开(公告)号：US11991619B2
公开(公告)日：2024-05-21
申请号：US17054074
申请日：2018-05-10
申请人： NTT DOCOMO, INC.
发明人： Hiroki Harada , Daiki Takeda , Tomoya Ohara , Hideaki Takahashi , Kazuki Takeda
摘要： A terminal is disclosed including a receiver that receives configuration information regarding a physical downlink control channel (PDCCH) to configure a common search space; and a processor that monitors downlink control information in the common search space based on the configuration information, wherein the configuration information includes information regarding a search space that is able to be specified by bits in an index of a master information block (MIB) and information regarding a search space index associated with a given search space. In other aspects, a radio communication method, a base station, and a system are also disclosed.
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公开(公告)号：US20230239856A1
公开(公告)日：2023-07-27
申请号：US18001663
申请日：2021-07-08
申请人： NTT DOCOMO, INC.
发明人： Hideaki Takahashi , Tianyang Min
IPC分类号： H04W72/12
摘要： A terminal includes a receiver configured to receive first system information from a base station; and a controller configured to acquire, from the first system information, a first list, a second list, and a third list for scheduling second system information other than the first system information, and to determine a start position of a window for acquiring the second system information, based on the first list, the second list, and the third list, wherein the receiver receives the second system information from the base station in the window.
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公开(公告)号：US20230232212A1
公开(公告)日：2023-07-20
申请号：US17998218
申请日：2020-10-07
申请人： NTT DOCOMO, INC.
发明人： Hideaki Takahashi , Akihito Hanaki
IPC分类号： H04W8/22
CPC分类号： H04W8/22
摘要： A terminal includes a receiving unit that receives, from a base station, a message that requests a report on terminal capability; a control unit that includes information for reporting a parameter for a codebook per band and information for reporting a parameter for a codebook per band combination in a message for reporting the terminal capability, the information for reporting the parameter for the codebook per band and the information for reporting the parameter for the codebook per band combination being included based on information for specifying a type of a codebook included in the message that requests the report on the terminal capability; and a transmitting unit that transmits the message for reporting the terminal capability to the base station.
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公开(公告)号：US11678352B2
公开(公告)日：2023-06-13
申请号：US17048221
申请日：2019-04-15
申请人： NTT DOCOMO, INC.
发明人： Hiroki Harada , Hideaki Takahashi
IPC分类号： H04W72/04 , H04W72/12 , H04W72/53 , H04W72/0446 , H04W72/0453 , H04W72/1263 , H04W72/23
CPC分类号： H04W72/53 , H04W72/0446 , H04W72/0453 , H04W72/1263 , H04W72/23
摘要： A decrease of a communication throughput is suppressed even when a plurality of radio access technologies (RATS) coexist. A user terminal according to an aspect of the present disclosure includes: a receiving section that receives information on a UL/DL configuration in a second carrier; and a control section that determines start timing of the UL/DL configuration in the second carrier based on an offset between a frame boundary in a first carrier and a frame boundary in the second carrier.
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公开(公告)号：US20230113031A1
公开(公告)日：2023-04-13
申请号：US17913727
申请日：2020-04-09
申请人： NTT DOCOMO, INC.
发明人： Kouhei Harada , Akihito Hanaki , Hideaki Takahashi
摘要： A terminal includes a transmitting unit that transmits a signaling message including information indicating a context to be established with a base station when there is one device corresponding to a transmission source address of the context to be established with the base station, the one device being connected to the terminal; and a control unit that attaches, to data, a compressed header corresponding to the context, when the data received from the one device is to be transmitted after transmitting the signaling message, wherein the transmitting unit transmits, to the base station, the data to which the compressed header is attached, the data not including a context identifier for identifying the context.
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公开(公告)号：US20230048322A1
公开(公告)日：2023-02-16
申请号：US17759068
申请日：2020-02-07
申请人： NTT DOCOMO, INC.
发明人： Hideaki Takahashi , Yuki Matsumura
摘要： A terminal includes a receiving unit configured to receive, from a base station, a message for requesting a report of a terminal capability, a control unit configured to include, into a message for reporting the terminal capability, a terminal capability related to measurement using a reference signal for obtaining information about a channel state, for each band or for each band combination, based on the message for requesting the report of the terminal capability, and a transmitting unit configured to transmit the message for reporting the terminal capability to the base station, wherein a range of a target time domain is specified in the terminal capability related to the measurement.
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公开(公告)号：US20230035994A1
公开(公告)日：2023-02-02
申请号：US17791715
申请日：2020-02-13
申请人： NTT DOCOMO, INC.
发明人： Takuma Takada , Hideaki Takahashi
摘要： A terminal includes, a reception unit configured to receive a configuration regarding measurement from a base station, a control unit configurated to execute measurement based on the configuration regarding the measurement, and a transmission unit configured to transmit a result of the executed measurement to the base station, wherein the control unit is configured to identify a measurement execution interval based on the configuration regarding the measurement, and to configure a communication interruption period, at a head and a tail of the measurement execution interval, in accordance with a capability of the terminal.
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公开(公告)号：US20230007521A1
公开(公告)日：2023-01-05
申请号：US17756870
申请日：2019-12-06
申请人： NTT DOCOMO, INC.
发明人： Hideaki Takahashi , Tianyang Min
摘要： A terminal includes: a transmitting unit configured to transmit, to a radio access network, a measurement report including reception qualities regarding cells including a serving cell and neighboring cells; and a control unit configured to determine whether a trigger condition used for determining whether to perform a procedure of transmitting the measurement report is satisfied. The trigger condition includes at least a condition regarding individual beams from the neighboring cells.
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