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公开(公告)号：US20200100220A1
公开(公告)日：2020-03-26
申请号：US16495512
申请日：2018-03-20
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Huiling Jiang
Abstract: A base station is disclosed including a processor that maps one or more control channel elements (CCEs) in a downlink control channel to one or more resource units that are obtained by an interleaver for interleaving indexes of a plurality of resource units in a control resource set, and a transmitter transmits the downlink control channel. Each of the one or more resource units are being defined as a plurality of resource element groups (REGs). A transmitter transmits the downlink control channel. In other aspects, a terminal and a radio communication method are disclosed.
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公开(公告)号：US20200053738A1
公开(公告)日：2020-02-13
申请号：US16496211
申请日：2017-03-23
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Satoshi Nagata , Jing Wang , Liu Liu
Abstract: The present invention is designed to configure RRM measurement properly. A user terminal according to one aspect of the present invention has a receiving section that receives information about a parameter that is common among a plurality of resources for a reference signal, and a control section that controls, based on information about the parameter, reporting of results of measurement using the reference signal in part of the plurality of resources, and information about measured resources.
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公开(公告)号：US20200052846A1
公开(公告)日：2020-02-13
申请号：US16606178
申请日：2017-04-20
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Xu Zhang
IPC: H04L5/00
Abstract: For the purpose of reducing the deterioration of the quality of communication and/or the drop in the efficiency of the use of resources even when communication is carried out based on different configurations from those of existing LTE systems, according to one aspect of the present invention, a user terminal has a receiving section that receives a downlink control channel, which is transmitted by using a downlink control channel element comprised of a plurality of resource element groups (REGs) and/or one or more REG groups, and a reference signal, which is used to demodulate the downlink control channel, and a control section that controls receipt of the downlink control channel in a certain field, and an allocation pattern of the reference signal is configured in association with at least one of the REG group, the downlink control channel element and the certain field.
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公开(公告)号：US20200029307A1
公开(公告)日：2020-01-23
申请号：US16334867
申请日：2017-09-21
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Kazuaki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Lihui Wang , Huiling Jiang
Abstract: The present invention is designed to allow communication based on appropriate numerologies even when multiple numerologies are used. According to one aspect of the present invention, a user terminal has a receiving section that monitors downlink control information by assuming a plurality of communication parameters that relate to a frequency domain and/or a time domain, and a control section that judges that at least part of parameters that relate to a search space for monitoring the downlink control information is different, for each of the communication parameters.
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公开(公告)号：US20190215818A1
公开(公告)日：2019-07-11
申请号：US16328838
申请日：2017-08-30
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Shaozhen Guo , Lihui Wang , Liu Liu , Xiaolin Hou , Huiling Jiang
CPC classification number: H04W72/0406 , H04W28/04 , H04W72/04 , H04W72/12 , H04W72/1289 , Y02D70/00 , Y02D70/10 , Y02D70/12 , Y02D70/126
Abstract: The present invention is designed so that the transmission of PUSCH can be controlled properly when the reference value for the timing for transmitting signals is controlled in radio base stations and/or user terminals. A user terminal, according to the present invention, has a receiving section that receives downlink control information (DCI), and a control section that controls transmission of an uplink (UL) shared channel that is scheduled by the DCI, and the control section controls the transmission of the UL shared channel based on a reference value that is configured for the timing for transmitting the UL shared channel.
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Patent Agency Ranking
公开(公告)号：US20190190763A1
公开(公告)日：2019-06-20
申请号：US16322581
申请日：2017-08-03
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang , Can Li , Yong Li , Wenbo Wang
CPC classification number: H04L27/2662 , H04L5/0053 , H04L27/2676 , H04W28/06 , H04W72/04 , H04W72/0413
Abstract: The present invention is designed to properly transmit demodulation reference signals for UL data channels in short TTIs. A user terminal according to one aspect of the present invention has a transmission section that transmits a demodulation reference signal for an uplink (UL) data channel, and a control section that controls the transmission of the demodulation reference signal, and, when the UL data channel is transmitted in a second transmission time interval (TTI), which is comprised of a smaller number of symbols than a first TTI, the control section maps the demodulation reference signal to a symbol that is selected based on the arrangement pattern of the second TTI.
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公开(公告)号：US20190182822A1
公开(公告)日：2019-06-13
申请号：US16301520
申请日：2017-08-10
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Naoto Ookubo , Jiahui Liu , Qin Mu , Liu Liu , Huiling Jiang
Abstract: The present invention provides a method for allowing user terminal to acquire information about paging physical resource blocks (PRBs), a method of allowing a base station to indicate information about paging PRBs to UE, a method of allowing UE to determine allocation of paging PRBs, a method of allowing a base station to allocate paging PRBs, a base station and UE. The above method of allowing user terminal to acquire information about paging physical resource blocks (PRBs) includes detecting an anchor PRB, reading information carried by the anchor PRB, and acquiring information about the non-anchor paging PRBs associated with the anchor PRB based on the information carried by the anchor PRB. By this method, non-anchor paging PRBs can be specified to the UE.
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公开(公告)号：US20190116547A1
公开(公告)日：2019-04-18
申请号：US16088740
申请日：2017-03-29
Applicant: NTT DOCOMO, INC.
Inventor： Yousuke Sano , Kazuaki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Huiling Jiang
Abstract: A user equipment in a mobile communication system including a base station and the user equipment, including: a mode determining unit that receives instruction information indicating a transmission mode of broadcast information from the base station and determines the transmission mode based on the instruction information; and a receiving unit that performs a reception operation of the broadcast information according to the transmission mode determined by the mode determining unit.
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公开(公告)号：US20190090251A1
公开(公告)日：2019-03-21
申请号：US15762962
申请日：2016-09-23
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Satoshi Nagata , Jing Wang , Liu Liu , Huiling Jiang
Abstract: A radio base station that communicates with a user terminal by using a plurality of component carriers (CCs) in which listening is configured, includes a transmitter that transmits downlink (DL) signals in each CC; and a processor that controls transmission of the DL signals in each CC based on a result of the listening in the plurality of CCs. The processor controls allocation of power based on a total number of CCs that make transmission in each subframe after the listening.
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公开(公告)号：US20180279283A1
公开(公告)日：2018-09-27
申请号：US15761929
申请日：2016-09-08
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
CPC classification number: H04W72/044 , H04L5/0055 , H04W24/10 , H04W72/04 , H04W72/0413
Abstract: The present invention is designed so that UL transmission can be made adequately even when channel state information of a plurality of CCs is transmitted. A user terminal can communicate with a radio base station by using a plurality of component carriers (CCs), and has a transmission section that transmits delivery acknowledgment signals for one or more CCs and/or channel state information of a plurality of CCs, in a predetermined subframe, in an uplink control channel, and a control section that performs control so that part or all of the channel state information of the plurality of CCs is dropped when transmission power configured for UL transmission in the predetermined subframe exceeds a predetermined value.
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