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公开(公告)号：US20190208509A1
公开(公告)日：2019-07-04
申请号：US16328756
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: H04W72/042 , H04L1/1829 , H04W28/04
Abstract: The present invention is designed so that the transmission of A/Ns 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 a downlink (DL) shared channel, and a control section that controls transmission of retransmission control information in response to the DL shared channel. The control section controls the transmission of the retransmission control information based on a reference value that is configured for timing for transmitting the retransmission control information.
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公开(公告)号：US20190174462A1
公开(公告)日：2019-06-06
申请号：US16324188
申请日：2017-08-08
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Kazuki Takeda , Satoshi Nagata , Jiahui Liu , Qin Mu , Lihui Wang , Liu Liu , Huiling Jiang
Abstract: The present invention is designed to transmit and/or receive system information properly in a radio communication system where multiple numerologies are configured. A user terminal communicates in a radio communication system where multiple numerologies are configured, and this user terminal has a receiving section that receives system information of each of the numerologies via at least one broadcast channel, and a control section that controls reception of the broadcast channel, and the control section controls reception of the broadcast channel that is transmitted in each of the numerologies or that is transmitted selectively in a given numerology.
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公开(公告)号：US20190140878A1
公开(公告)日：2019-05-09
申请号：US16300392
申请日：2017-05-11
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
Abstract: The present invention is designed to suitably support transmission of uplink control information even when shortened TTIs are used. According to one aspect of the present invention, a user terminal that communicates using a shortened transmission time interval (TTI), in which the TTI duration is shorter than one ms, has a control section that controls transmission of uplink control information, and a transmission section that transmits the uplink control information in a predetermined shortened TTI, using an uplink control channel format, which is for shortened TTIs and which is compatible with multiple TTI durations.
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公开(公告)号：US20190124678A1
公开(公告)日：2019-04-25
申请号：US16089152
申请日：2017-03-30
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
Abstract: The present invention is designed to realize appropriate reporting of information about the allocation of UL signals. A user terminal has a receiving section that receives downlink control information including uplink resource allocation information, a control section that determines, based on the uplink resource allocation information, a resource block (RB) allocation pattern that is repeated every given-number of resource blocks, and a transmitting section that transmits a UL signal by using a plurality of resource blocks that are determined based on the RB allocation pattern.
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公开(公告)号：US20190116615A1
公开(公告)日：2019-04-18
申请号：US16087831
申请日：2017-03-29
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
Abstract: The present invention is designed to perform random access procedures adequately in a carrier in which LBT (Listen Before Talk) is configured. A user terminal, according to one aspect of the present invention, has a control section that controls random access procedures for a carrier where listening is performed before uplink transmission, a receiving section that receives downlink control information including information about a period that is formed with a plurality of transmission time intervals (TTIs) in which a random access preamble can be transmitted, and a transmission section that transmits the random access preamble in the period, in the carrier, in response to receipt of the downlink control information.
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Patent Agency Ranking
公开(公告)号：US20190116489A1
公开(公告)日：2019-04-18
申请号：US16088302
申请日：2017-03-30
Applicant: NTT DOCOMO, INC.
Inventor： Hiroki Harada , Satoshi Nagata , Liu Liu , Lihui Wang , Huiling Jiang
Abstract: The present invention is designed to suitably realize UCI (Uplink Control Information) transmission at a desired timing in a carrier where LBT (Listen Before Talk) is configured. A user terminal, according to one embodiment of the present invention, has a transmission section that transmits signals in carriers where listening is performed before uplink transmission, a receiving section that receives PUCCH cell configuration information as to whether or not at least one of the carriers is a cell where a PUCCH (Physical Uplink Control Channel) is transmitted, and a control section that controls the transmission of uplink control information (UCI) in the carriers based on the PUCCH cell configuration information.
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公开(公告)号：US20180323907A1
公开(公告)日：2018-11-08
申请号：US15773287
申请日：2016-11-04
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
CPC classification number: H04L1/1812 , H04L1/1861 , H04L1/1864 , H04L1/1887 , H04L5/0055 , H04L5/14 , H04W28/04 , H04W28/06 , H04W72/04 , H04W72/12
Abstract: A user terminal includes: a transmitter that transmits delivery acknowledgement signals (HARQ-ACKs); a receiver that receives downlink control information including: in one or more predetermined subframes of the downlink control information, first information that indicates a total number of cells to be subjected to downlink (DL) transmission scheduling, and second information that indicates a cumulative number of cells; and a processor that performs control so that the HARQ-ACKs are transmitted in predetermined uplink (UL) subframes based on the first information and the second information. The HARQ-ACKs are transmitted in response to DL signals transmitted from a plurality of cells. The plurality of cells include cells that use Time Division Duplex (TDD). A value of the first information is the same in each of the one or more predetermined subframes, and the processor updates the first information on a per subframe basis.
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公开(公告)号：US20180212718A1
公开(公告)日：2018-07-26
申请号：US15934038
申请日：2018-03-23
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
CPC classification number: H04L1/1816 , H04L1/1854 , H04L1/1861 , H04L5/0057 , H04W24/10 , H04W28/06 , H04W72/04 , H04W72/0413
Abstract: A user terminal is disclosed. The user terminal has a transmitter that transmits uplink control information (UCI) and a processor executes control to transmit at least a part of the UCI by using a specific Physical Uplink Control Channel (PUCCH) format (PF). When the UCI includes multiple periodic channel state information (P-CSI) and multiple Hybrid Automatic Repeat reQuest Acknowledgments (HARQ-ACKs), the processor controls to transmit the UCI by using a resource designated by downlink control information and a second PF having a greater capacity than PF.
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公开(公告)号：US20170086149A1
公开(公告)日：2017-03-23
申请号：US15309231
申请日：2015-05-08
Applicant: NTT DOCOMO, INC.
Inventor： Kazuki Takeda , Liu Liu , Lihui Wang , Huiling Jiang
CPC classification number: H04W52/365 , H04W8/24 , H04W52/146 , H04W52/34 , H04W72/04 , H04W88/06
Abstract: The present invention is designed to reduce the decrease of uplink throughput in the event a user terminal connects with a plurality of radio base stations. A user terminal (20) according to an example of the present invention provides a user terminal that connects with a plurality of radio base stations (10) including a first radio base station and a second radio base station, and this user terminal has a transmission section (203) that transmits uplink signals of a plurality of types to each radio base station, and a control section (401) that controls the transmission power of the uplink signals based on the priorities of the uplink signals for each radio base station, and, every time there are uplink signals of the same type, the control section configures the priority for the first radio base station higher than the priority for the second radio base station.
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公开(公告)号：US20160205602A1
公开(公告)日：2016-07-14
申请号：US14913042
申请日：2014-08-15
Applicant: NTT DOCOMO, INC.
Inventor： Tooru Uchino , Yoshihisa Kishiyama , Lan Chen , Liu Liu , Lihui Wang , Yong Li , Wenbo Wang
CPC classification number: H04W16/32 , H04W24/10 , H04W36/02 , H04W36/04 , H04W36/08 , H04W36/28 , H04W74/0833 , H04W76/15 , H04W84/047
Abstract: In switching a radio base station (SeNB) from a radio base station (SeNB#1) to a radio base station (SeNB#2) in an “Inter-node UP aggregation”, forwarding of new downlink data destined for a mobile station (UE) from a radio base station (MeNB) to the radio base station (SeNB#2) is quickly started. A mobile communication method according to the present invention includes: sending, by the mobile station UE, the radio base station (MeNB) a “New data delivery request” that requests forwarding of new downlink data destined for the mobile station (UE) to the radio base station (SeNB#2) , in response to an “SeNB change command”; and forwarding, by the radio base station MeNB, the new downlink data destined for the mobile station (UE) to the radio base station (SeNB#2) , in response to the “New data delivery request”.
Abstract translation: 在“节点间UP聚合”中，从无线基站（SeNB＃1）向无线基站（SeNB＃2）切换无线基站（SeNB）时，转发去往移动台的新的下行链路数据 UE）从无线基站（MeNB）到无线基站（SeNB＃2）。 根据本发明的移动通信方法包括：由移动台UE向无线基站（MeNB）发送请求向目的地为移动台（UE）发送的新的下行链路数据的转发的“新的数据发送请求” 无线基站（SeNB＃2），响应“SeNB变更指令”; 以及响应于“新数据传送请求”，由无线基站MeNB向目的地为移动台（UE）的新的下行链路数据转发给无线基站（SeNB＃2）。
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