-
11.发明申请公开(公告)号：US20200304193A1
公开(公告)日：2020-09-24
申请号：US16651003
申请日：2018-09-28
Applicant: NTT DOCOMO, INC. , DOCOMO INNOVATIONS, INC.
Inventor： Yuichi Kakishima , Chongning Na , Min Liu , Satoshi Nagata
Abstract: A method of transmitting Channel State Information (CSI)-Reference Signals (RSs) in a wireless communication system that includes a base station (BS) and a user equipment (UE) includes transmitting, from the BS to the UE, first multiple CSI-RSs in a CSI-RS resource set that consists of CSI-RS resources. The first multiple CSI-RSs are transmitted using the CSI-RS resources, respectively. The CSI-RS resource set is repeated in a time domain or a frequency domain. The transmitting transmits second multiple CSI-RSs in the repeated CSI-RS resource set.
-
公开(公告)号：US20190356378A1
公开(公告)日：2019-11-21
申请号：US16475780
申请日：2018-01-05
Applicant: NTT DOCOMO, INC.
Inventor： Kazuaki Takeda , Satoshi Nagata , Chongning Na , Min Liu , Huiling Jiang , Yuichi Kakishima
Abstract: The invention is designed to switch beams quickly. A user terminal, according to the present invention, has a receiving section that receives a downlink (DL) signal, and a control section that controls a beam to use to transmit and/or receive the DL signal. When the DL signal is transmitted and/or received using one or more candidate beams, the control section selects the beam based on the measurement results of the demodulation reference signals of one or more antenna ports that respectively correspond to the one or more candidate beams.
-
公开(公告)号：US11758558B2
公开(公告)日：2023-09-12
申请号：US17533756
申请日：2021-11-23
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Chongning Na , Xin Wang , Jing Wang , Lihui Wang , Min Liu , Huiling Jiang
IPC: H04W72/23 , H04W72/0446 , H04W72/53
CPC classification number: H04W72/23 , H04W72/0446 , H04W72/53
Abstract: An apparatus is disclosed including a receiver that receives a downlink control information and a downlink shared channel that is scheduled by the downlink control information; a processor that determines an allocation of the downlink shared channel in a time domain based on a first timing indicated by a first time unit and a second timing indicated by a second time unit that are obtained from information notified by the downlink control information; and an output apparatus that outputs information based on the downlink shared channel, wherein the first timing is defined based on a numerology of the downlink shared channel. In other aspects, a system is also disclosed.
-
公开(公告)号：US11665767B2
公开(公告)日：2023-05-30
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
CPC classification number: H04W76/19 , H04L5/0048 , H04W74/0833
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.
-
公开(公告)号：US11510213B2
公开(公告)日：2022-11-22
申请号：US17047934
申请日：2018-05-29
Applicant: NTT DOCOMO, INC.
Inventor： Xin Wang , Min Liu , Jing Wang , Xiaolin Hou
IPC: H04W72/08 , H04B7/0452 , H04L5/00
Abstract: Provided by the present disclosure are a method used for signal transmission, and corresponding user terminals and base stations. The method performed by a user terminal includes: receiving indication information for a spatial-domain reception parameter transmitted by a base station; determining a first spatial-domain reception parameter according to the indication information for a spatial-domain reception parameter, so that the user terminal receives downlink data signals through the first spatial domain reception parameter. The method performed by a base station includes: generating indication information for a spatial-domain reception parameter; and transmitting the indication information for a spatial-domain reception parameter to a user terminal, so that the user terminal determines a first spatial-domain reception parameter according to the indication information for a spatial-domain reception parameter.
-
Patent Agency Ranking
公开(公告)号：US11438965B2
公开(公告)日：2022-09-06
申请号：US16962623
申请日：2019-01-18
Applicant: NTT DOCOMO, INC.
Inventor： Yuichi Kakishima , Satoshi Nagata , Toru Uchino , Min Liu , Chongning Na
Abstract: A user equipment (UE) includes a receiver that receives, from a base station (BS), one or more Transmission Configuration Indication (TCI) states for Physical Downlink Control Channel (PDCCH) reception via Radio Resource Control (RRC) signaling and a Medium Access Control Control Element (MAC CE) activation command for one of the TCI states via a Physical Downlink Shared Channel (PDSCH). The UE further includes a transmitter that transmits, to the BS, a Hybrid Automatic Repeat reQuest (HARQ) for the MAC CE activation command in a slot and a processor that activates the one of the TCI states k slots after the slot where the transmitter transmits the HARQ. A value of the k indicates a number of slots.
-
公开(公告)号：US11218202B2
公开(公告)日：2022-01-04
申请号：US16496295
申请日：2018-03-07
Applicant: NTT DOCOMO, INC.
Inventor： Min Liu , Liu Liu , Huiling Jiang , Xin Wang , Qin Mu , Chongning Na , Jing Wang , Yuichi Kakishima , Kazuaki Takeda , Satoshi Nagata
IPC: H04B7/06 , H04B7/0408 , H04W16/28
Abstract: Provided are a beam configuration method, a mobile station and a base station. The beam configuration method performed by a base station according to embodiments of the present invention includes: determining a beam transmission scheme for a mobile station according to performance of the mobile station; and transmitting information to the mobile station according to the beam transmission scheme.
-
公开(公告)号：US20200267804A1
公开(公告)日：2020-08-20
申请号：US16651516
申请日：2018-09-28
Applicant: NTT DOCOMO, INC.
Inventor： Yuichi Kakishima , Min Liu , Chongning Na , Satoshi Nagata
Abstract: A user equipment (UE) includes a receiver that receives, from a base station (B S), multiple reference signals transmitted using first beams, a processor, and a transmitter. The first beams comprise at least one second beam used for Physical Downlink Control Channel (PDCCH) transmission between the BS and the UE and third beams that are not used for the PDCCH transmission. The processor measures quality of the first beams. The transmitter reports, to the BS, the quality of the at least one second beam and part of the third beams.
-
公开(公告)号：US20200162134A1
公开(公告)日：2020-05-21
申请号：US16610848
申请日：2018-05-04
Applicant: NTT DOCOMO, INC.
Inventor： Yuichi Kakishima , Chongning Na , Min Liu , Xin Wang , Satoshi Nagata
IPC: H04B7/0417 , H04L5/00 , H04W72/04
Abstract: A user equipment (UE) includes a receiver that receives, from a Transmission and Reception Point (TRP), multiple Demodulation Reference Signals (DMRSs) in adjacent resource blocks (RBs) of which a number is greater than a first predetermined value, a processor that measures Channel State Information (CSI) using the received DMRSs, and a transmitter that performs CSI reporting based on the CSI.
-
公开(公告)号：US11838933B2
公开(公告)日：2023-12-05
申请号：US16494440
申请日：2017-03-17
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Qin Mu , Liu Liu , Chongning Na , Xin Wang , Jing Wang , Lihui Wang , Min Liu , Huiling Jiang
IPC: H04W72/04 , H04W72/12 , H04W72/53 , H04L1/1812 , H04L5/00 , H04W24/08 , H04W72/0446 , H04W72/0453 , H04W72/23
CPC classification number: H04W72/53 , H04L1/1819 , H04L5/0055 , H04W24/08 , H04W72/0446 , H04W72/0453 , H04W72/23
Abstract: The present invention is designed to appropriately select PUCCH resources used to transmit HARQ-ACK. According to one aspect of the present invention, a user terminal has a control section that monitors candidate resources of one or more downlink (DL) control channels (DL) transmitted in multiple different time and/or frequency resources, and detects one or more downlink control information (DCI), and a transmission section that transmits delivery acknowledgment information in response to a downlink (DL) data channel by using an uplink (UL) control channel, and the control section selects resources for the UL control channel based on the DCI.
-
-
-
-
-
-
-
-
-
Search Results
30
records
(took 0.017 seconds)
