-
公开(公告)号：US11601870B2
公开(公告)日：2023-03-07
申请号：US16469245
申请日：2017-12-14
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu
IPC: H04W48/12 , H04L5/00 , H04W72/04 , H04W72/0453
Abstract: The present invention is designed so that communication is performed appropriately in radio communication systems that support different numerologies than existing LTE systems. A receiving section that receives a downlink control channel, and a control section that controls the detection of search spaces that serve as candidates for allocating the downlink control channel are provided, and the control section controls the detection of a common search space and a user-specific search space, in which different subcarrier spacings and/or different transmission cycles are configured.
-
公开(公告)号：US11516787B2
公开(公告)日：2022-11-29
申请号：US16634324
申请日：2017-07-28
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu
Abstract: To appropriately communicate a control channel even when communication is performed by applying a configuration of the control channel different from those of legacy LTE systems, a user terminal according to the present invention includes: a reception section that receives a downlink control channel transmitted by each of a plurality of control resource sets; and a control section that controls monitoring of a downlink control channel candidate, and the control section controls allocation of a number of downlink control channel candidates to each of the control resource sets assuming that the number of downlink control channel candidates configured to a combination of the control resource sets in a given time unit does not exceed terminal capability.
-
公开(公告)号：US11284401B2
公开(公告)日：2022-03-22
申请号：US16483303
申请日：2018-02-02
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu , Xu Zhang , Liu Liu , Huiling Jiang
IPC: H04W72/04 , H04B7/0456 , H04L5/00 , H04L5/10 , H04W72/12
Abstract: The present invention is designed to reduce the deterioration of communication quality and so on even when communication is performed by applying different configurations than in existing LTE systems. A receiving section that receives a downlink control channel, and a control section that controls receipt of the down link control channel, are provided, the downlink control channel is transmitted using downlink control channel elements including a plurality of resource element groups (REGs), and the control section controls receiving processes per REG group comprised of a plurality of REGs.
-
公开(公告)号：US20210144714A1
公开(公告)日：2021-05-13
申请号：US16622678
申请日：2017-06-15
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu
Abstract: According to the present invention, when communication is carried out using different formats from those of existing LTE systems, control channels can be communicated properly. A user terminal, according to one aspect of the present invention, includes a receiving section that receives a DL control channel, and a control section that controls monitoring of DL control channel candidates, and the control section determines the aggregation level to monitor and/or the number of DL control channel candidates based on the DCI format and/or the DCI payload size.
-
公开(公告)号：US10912043B2
公开(公告)日：2021-02-02
申请号：US16334879
申请日：2017-09-21
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Kazuaki Takeda , Satoshi Nagata , Lihui Wang , Qin Mu , Liu Liu
Abstract: The present invention is designed to properly control the transmission of UL signals transmitted in response to DL transmission, in future radio communication systems. A receiving section that receives downlink control information and downlink data, and a control section that controls the transmission of an acknowledgment signal in response to the downlink data, are provided, and the control section controls the timing for transmitting the delivery acknowledgment signal based on timing information included in the downlink control information.
-
Patent Agency Ranking
公开(公告)号：US20200305187A1
公开(公告)日：2020-09-24
申请号：US16088780
申请日：2017-03-30
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Yousuke Sano , Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu
Abstract: A user equipment is disclosed including a processor that selects a parameter set from a parameter set group generated by grouping radio parameters used for transmission of an uplink signal or reception of a downlink signal, and selects a radio parameter to be applied to the uplink signal or the downlink signal from the selected parameter set, and a transceiver that performs the transmission of the uplink signal or the reception of the downlink signal using the selected radio parameter.
-
公开(公告)号：US20200236697A1
公开(公告)日：2020-07-23
申请号：US16334404
申请日：2017-09-21
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Kazuaki Takeda , Satoshi Nagata , Lihui Wang , Qin Mu
Abstract: The present invention is designed so as to allow efficient use of radio resources between DL control channels and DL data channels. According to the present invention, a user terminal has a receiving section that monitors a plurality of candidate resources in a downlink (DL) control channel, and receives downlink control information (DCI) mapped to at least one of the plurality of candidate resources, and a control section that controls receipt of the DL data channel based on the DCI, wherein the control section selects the plurality of candidate resources based on a higher layer parameter.
-
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.
-
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.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
130
records
(took 0.027 seconds)
