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公开(公告)号：US12022570B2
公开(公告)日：2024-06-25
申请号：US17441563
申请日：2019-03-28
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Kazuaki Takeda , Hiroki Harada , Takayuki Isogawa
Abstract: A base station apparatus including: a transmission unit that transmits a first activation signal, which is an activation signal that becomes a trigger for monitoring a paging occasion, for each group of grouped user equipments and transmits a second activation signal, which is a activation signal common to multiple groups, wherein the transmission unit transmits, to the user equipment, information instructing whether to perform monitoring of the second activation signal or information indirectly instructing whether to perform monitoring of the second activation signal.
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公开(公告)号：US20230345430A1
公开(公告)日：2023-10-26
申请号：US17907744
申请日：2020-03-31
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Shinya Kumagai , Hiroki Harada
IPC: H04W72/0446 , H04W72/02
CPC classification number: H04W72/0446 , H04W72/02
Abstract: A terminal according to one aspect of the present disclosure includes a control section that determines a periodicity different from a second periodicity of at least one of a synchronization signal block, a control resource set (CORESET) 0, a physical downlink shared channel for carrying a system information block 1, an update of a physical broadcast channel in the synchronization signal block, and an update of the system information block 1, for a second terminal, the second terminal having at least one of a second bandwidth wider than a bandwidth of the terminal and a second number of antennas greater than the number of antennas of the terminal, and a receiving section that performs reception based on the periodicity. According to one aspect of the present disclosure, initial access can be appropriately performed.
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公开(公告)号：US11799603B2
公开(公告)日：2023-10-24
申请号：US16609157
申请日：2017-05-02
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Hiroki Harada , Satoshi Nagata
CPC classification number: H04L5/0048 , H04L27/0008 , H04L27/2613 , H04L27/26025 , H04L27/2666 , H04W56/001
Abstract: A user apparatus that uses a plurality of subcarrier spacings is disclosed. The user apparatus includes a receiver that receives a synchronization signal and system information. The user apparatus further includes a processor that determines, on a basis of the subcarrier spacings, positions of symbols to which periodic blocks including the synchronization signal and the system information are mapped. In other aspects, a base station apparatus and a communication method are also disclosed.
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64.发明授权公开(公告)号：US11757580B2
公开(公告)日：2023-09-12
申请号：US17280172
申请日：2018-09-28
Applicant: NTT DOCOMO, INC.
Inventor： Runxin Wang , Wenjia Liu , Xiaolin Hou , Daiki Takeda
CPC classification number: H04L5/0016 , H04J13/0022 , H04J13/0062 , H04L5/0051 , H04L27/2607 , H04L27/2614
Abstract: Provided by an embodiment of the present invention are a user equipment and base station that may be used in a wireless communication system, or a method performed by the user equipment and the base station. The user equipment according to the embodiment of the present invention includes: a receiving unit that is configured to receive multiple access signature information for the user equipment from a base station, wherein the multiple access signature information includes correction information indicating a reference signal sequence sent with respect to the user equipment; and a control unit that is configured to determine the reference signal sequence of the user equipment according to the received correction information.
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公开(公告)号：US20230142231A1
公开(公告)日：2023-05-11
申请号：US17996900
申请日：2021-04-23
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Masashi Anzawa , Hiroki Ishizuka
IPC: H04W76/14
CPC classification number: H04W76/14
Abstract: A terminal includes: a reception unit configured to obtain information for starting a service that performs priority control related to communications, the service being applied to a group to which one or more terminals belong; and a control unit configured to start the service for the terminals that belong to the group, by using the information and by a trigger via direct communication between terminals or via a network.
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Patent Agency Ranking
公开(公告)号：US20230129299A1
公开(公告)日：2023-04-27
申请号：US17798226
申请日：2020-02-13
Applicant: NTT DOCOMO, INC.
Inventor： Tomoya Ohara , Daiki Takeda , Shinya Kumagai
IPC: H04W74/08
Abstract: A terminal includes a control unit that selects a transmission occasion to transmit a random access preamble and that configures a frequency bandwidth used for transmission or reception by the terminal by using a start position of a frequency bandwidth of the selected transmission occasion or a center position of the frequency bandwidth of the selected transmission occasion as a reference, so that the random access preamble is to be transmitted in the frequency bandwidth of the transmission occasion; and a transmission unit that transmits the random access preamble based on the frequency bandwidth configured by the control unit.
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公开(公告)号：US20220346057A1
公开(公告)日：2022-10-27
申请号：US17762598
申请日：2019-09-25
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Hiroki Harada
Abstract: A terminal includes a receiver that receives, from a base station, configuration information for at least one of a first activation signal or a second activation signal associated with a paging occasion; a controller that determines, based on the configuration information, a time/frequency domain position of resources on which the first activation signal or the second activation signal is allocated; and a communication unit that receives the first activation signal or the second activation signal on the resources and receives, from the base station, paging associated with the received first activation signal or second activation signal, wherein the controller determines the time/frequency domain position of the resources on which the first activation signal and the second activation signal is allocated, by associating the positions of the resources.
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公开(公告)号：US20220346043A1
公开(公告)日：2022-10-27
申请号：US17765231
申请日：2019-10-03
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Hiroki Harada , Takuma Takada
Abstract: A terminal includes a controller configured to determine a candidate resource location where a resynchronization signal of a neighbor cell is possibly transmitted based on information on the neighbor cell; and a receiver configured to receive the resynchronization signal of the neighbor cell based on the candidate resource location.
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公开(公告)号：US20220217677A1
公开(公告)日：2022-07-07
申请号：US17606290
申请日：2019-05-02
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Hiroki Harada , Tomoya Ohara
IPC: H04W72/02
Abstract: A user equipment includes a transmitting unit that transmits data to base station apparatus using a preconfigured uplink resource and a receiving unit that, when a search space for receiving information relevant to the uplink resource and a predetermined resource overlap each other in a time domain, monitors only one of the search space and the predetermined resource or monitors both the search space and the predetermined resource.
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公开(公告)号：US20220182815A1
公开(公告)日：2022-06-09
申请号：US17441563
申请日：2019-03-28
Applicant: NTT DOCOMO, INC.
Inventor： Daiki Takeda , Kazuaki Takeda , Hiroki Harada , Takayuki Isogawa
Abstract: A base station apparatus including: a transmission unit that transmits a first activation signal, which is an activation signal that becomes a trigger for monitoring a paging occasion, for each group of grouped user equipments and transmits a second activation signal, which is a activation signal common to multiple groups, wherein the transmission unit transmits, to the user equipment, information instructing whether to perform monitoring of the second activation signal or information indirectly instructing whether to perform monitoring of the second activation signal.
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