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    RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD
    41.
    发明申请
    RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD 审中-公开
    无线基站，用户终端和无线电通信方法

    公开(公告)号：US20160242207A1

    公开(公告)日：2016-08-18

    申请号：US15024861

    申请日：2014-09-10

    Applicant: NTT DOCOMO, INC.

    Inventor： Shimpei Yasukawa ,  Qin Mu ,  Liu Liu ,  Lan Chen ,  Huiling Jiang

    IPC: H04W74/00 ,  H04W72/04

    CPC classification number: H04W74/002 ,  H04W28/06 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1289 ,  H04W88/02 ,  H04W88/08

    Abstract: The present invention is designed so that communication overhead pertaining to control signals is reduced in a communication system in which the bandwidth of a physical downlink shared channel is narrower than the system bandwidth. The radio base station of the present invention has a resource allocation section that allocates a physical downlink shared channel to a predetermined narrow band in a downlink system bandwidth, for a user terminal, and a downlink control information generating section that generates downlink control information to report to the user terminal, and the downlink control information generating section determines the size of a field pertaining to resource allocation information, included in downlink control information related to the physical downlink shared channel, based on the narrow band where the physical downlink shared channel is allocated.

    Abstract translation: 本发明被设计成使得在物理下行链路共享信道的带宽比系统带宽窄的通信系统中减少与控制信号有关的通信开销。 本发明的无线基站具有向下行系统带宽内的用户终端分配物理下行链路共享信道至规定的窄带的资源分配部，以及生成用于报告的下行控制信息的下行链路控制信息生成部 并且下行链路控制信息生成部基于物理下行链路共享信道被配置的窄带来决定包含在与物理下行链路共享信道有关的下行链路控制信息中的与资源分配信息有关的字段的大小 。

    USER TERMINAL, RADIO BASE STATION AND COMMUNICATION CONTROL METHOD
    42.
    发明申请
    USER TERMINAL, RADIO BASE STATION AND COMMUNICATION CONTROL METHOD 有权
    用户终端，无线基站和通信控制方法

    公开(公告)号：US20160183325A1

    公开(公告)日：2016-06-23

    申请号：US14909316

    申请日：2014-07-08

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroki Harada ,  Liu Liu ,  Lan Chen

    IPC: H04W76/04

    CPC classification number: H04W76/28 ,  H04W16/16 ,  H04W16/32 ,  H04W36/00 ,  H04W48/16 ,  H04W52/0216 ,  H04W52/0219 ,  H04W92/20 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/24

    Abstract: The present invention is designed to allow more reliable small cell detection while preventing the increase of power consumption in user terminals. The communication control method of the present invention includes the steps in which a radio base station that forms a macro cell and/or a small cell notifies a user terminal of transmission configuration information of a detection/measurement signal that is transmitted from the small cell, and discontinuous reception information including a discontinuous reception cycle in the user terminal, and the user terminal configures a detection duration for detecting the detection/measurement signal to overlap at least one transmission duration of the detection/measurement signal, based on the transmission configuration information and the discontinuous reception information.

    Abstract translation: 本发明被设计为允许更可靠的小电池检测，同时防止用户终端中的功率消耗的增加。 本发明的通信控制方法包括以下步骤：形成宏小区的无线基站和/或小小区向用户终端通知从小小区发送的检测/测量信号的发送配置信息， 以及包括用户终端中的不连续接收周期的不连续接收信息，并且所述用户终端基于所述传输配置信息，将检测/测量信号的检测持续时间配置为与所述检测/测量信号的至少一个传输持续时间重叠;以及 不连续接收信息。

    RADIO COMMUNICATION METHOD, RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION SYSTEM
    43.
    发明申请
    RADIO COMMUNICATION METHOD, RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION SYSTEM 有权
    无线电通信方法，无线基站，用户终端和无线电通信系统

    公开(公告)号：US20150229454A1

    公开(公告)日：2015-08-13

    申请号：US14416186

    申请日：2013-07-22

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Satoshi Nagata ,  Yoshihisa Kishiyama ,  Qin Mu ,  Liu Liu ,  Lan Chen

    IPC: H04L5/00 ,  H04B7/04

    CPC classification number: H04L5/0055 ,  H04B7/0452 ,  H04L1/00 ,  H04W28/06 ,  H04W72/042

    Abstract: A system and method for allocating adequate uplink radio resources for delivery acknowledgment information of a downlink shared data channel when downlink control information is transmitted using an enhanced downlink control channel is disclosed. A radio base station configures a plurality of enhanced PDCCH sets, which are each formed to include a plurality of enhanced control channel elements (eCCEs) allocated to the enhanced downlink control channel, for a user terminal, the radio base station transmits, to the user terminal, the downlink control information, to which resource identifiers (ARIs) are added, the resource identifiers being different between the plurality of enhanced PDCCH sets, and the user terminal determines radio resources for an uplink control channel that are used to transmit delivery acknowledgment information of the downlink shared data channel, based on offset values that are associated with the resource identifiers (ARIs).

    Abstract translation: 公开了一种用于在使用增强型下行链路控制信道发送下行链路控制信息时为下行链路共享数据信道的传送确认信息分配足够的上行链路无线电资源的系统和方法。 无线基站配置多个增强型PDCCH集合，每个增强型PDCCH集合形成为包括分配给增强型下行链路控制信道的多个增强控制信道单元（eCCE），用于用户终端，无线基站向用户发送 终端，添加了资源标识符（ARI）的下行链路控制信息，多个增强型PDCCH集合之间的资源标识符不同，并且用户终端确定用于发送递送确认信息的上行链路控制信道的无线电资源 基于与资源标识符（ARI）相关联的偏移值来确定下行链路共享数据信道。

    USER TERMINAL, RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM
    44.
    发明申请
    USER TERMINAL, RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM 有权
    用户终端，无线电通信方法和无线电通信系统

    公开(公告)号：US20150208403A1

    公开(公告)日：2015-07-23

    申请号：US14420667

    申请日：2013-08-08

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Yang Lu ,  Liu Liu ,  Lan Chen

    IPC: H04W72/04

    CPC classification number: H04W72/0413 ,  H04L1/00 ,  H04W72/042

    Abstract: A user terminal carries out the steps of receiving downlink control information for a first cell and a second cell allocated to the PDCCH of the first cell, generating retransmission control signals for each downlink data signal in predetermined PUCCH formats, allocating the generated retransmission control signals to a PUCCH resource of the first cell, and sending feedback, and, when the ratio of DL subframes is higher in the second cell than in the first cell, applies PUCCH format 3 to a retransmission control signal for a downlink data signal of the second cell demodulated by using downlink control information in which the CCE number is equal to or lower than a predetermined value, and applies PUCCH format 1b to a retransmission control signal for a downlink data signal of the second cell demodulated by using downlink control information in which the CCE number is greater than the predetermined value.

    Abstract translation: 用户终端执行接收分配给第一小区的PDCCH的第一小区和第二小区的下行链路控制信息的步骤，以预定的PUCCH格式生成每个下行链路数据信号的重发控制信号，将生成的重发控制信号分配给 第一小区的PUCCH资源，并发送反馈，并且当第二小区中的DL子帧的比率比在第一小区中高时，将PUCCH格式3应用于第二小区的下行链路数据信号的重发控制信号 通过使用CCE数等于或低于预定值的下行链路控制信息进行解调，并且将PUCCH格式1b应用于通过使用其中CCE的下行链路控制信息解调的第二小区的下行链路数据信号的重发控制信号 数大于预定值。

    USER TERMINAL, RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM
    45.
    发明申请
    USER TERMINAL, RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM 有权
    用户终端，无线电通信方法和无线电通信系统

    公开(公告)号：US20150146586A1

    公开(公告)日：2015-05-28

    申请号：US14399974

    申请日：2013-05-09

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Yang Lu ,  Qin Mu ,  Liu Liu ,  Lan Chen

    IPC: H04W72/04 ,  H04L5/14

    CPC classification number: H04W72/0413 ,  H04L1/18 ,  H04L5/1469 ,  H04W72/042

    Abstract: The present invention is designed to allow effective allocation of PUCCH resources, even when the ratio between uplink subframes and downlink subframes is changed in each cell, in CA by TDD. A user terminal communicates with a radio base station by means of TDD, in a communication band that is broadbanded by CA between a first cell and a second cell, and has a receiving section that receives downlink control information for the first cell and downlink control information for the second cell, allocated to a downlink control channel of the first cell, a retransmission control determining section that determines retransmission control for downlink signals transmitted from each cell, a transmitting section that feeds back retransmission control signals to the radio base station using the PUCCH of the first cell, and a resource selection section that selects the PUCCH resources to feed back the retransmission control signals, and, when the ratio of DL subframes is higher in the second cell than in the first cell, the resource selection section determines the PUCCH resources to allocate the retransmission control signals that correspond to the first cell and the second cell to, by different methods.

    Abstract translation: 本发明被设计为即使当在每个小区中在TDD中，CA在每个小区中改变上行链路子帧和下行链路子帧之间的比率时，也能够有效地分配PUCCH资源。 用户终端在由第一小区和第二小区之间由CA宽带的通信频带中通过TDD与无线基站进行通信，并且具有：接收部，其接收第一小区的下行链路控制信息和下行链路控制信息 对于分配给第一小区的下行控制信道的第二小区，确定从各小区发送的下行链路信号的重发控制的重传控制决定部，使用PUCCH向无线基站反馈重发控制信号的发送部 以及资源选择部，其选择所述PUCCH资源来反馈所述重发控制信号，并且当所述第二小区中的所述DL子帧的比例高于所述第一小区时，所述资源选择部确定所述PUCCH 用于分配与第一小区和第二小区相对应的重发控制信号的资源， 通过不同的方法。

    RADIO COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS, USER TERMINAL, AND RADIO COMMUNICATION METHOD
    46.
    发明申请
    RADIO COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS, USER TERMINAL, AND RADIO COMMUNICATION METHOD 有权
    无线电通信系统，无线基站设备，用户终端和无线电通信方法

    公开(公告)号：US20140241223A1

    公开(公告)日：2014-08-28

    申请号：US14355645

    申请日：2012-11-08

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Liu Liu ,  Lan Chen ,  Qin Mu ,  Wenbo Wang

    IPC: H04W72/04 ,  H04J3/00

    CPC classification number: H04W72/042 ,  H04J3/00 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/1469 ,  H04W72/1289

    Abstract: According to the present invention, even when the ratio between uplink subframes and downlink subframes is changed in each component carrier in TDD carrier aggregation, it is still possible to prevent a decrease in capacity. With the radio communication method according to the present invention, a radio base station apparatus generates a downlink control channel signal containing downlink control information including carrier indicator field information, and transmits the downlink control channel signal to a user terminal, and the user terminal receives the downlink control channel signal, and executes signal processing with respect to the downlink signal in accordance with the downlink control information. In this case, the carrier indicator field information is information which associates a carrier index and the index of a secondary cell subframe to be scheduled.

    Abstract translation: 根据本发明，即使在TDD载波聚合中每个分量载波中上行子帧与下行子帧之间的比例发生变化的情况下，仍然可以防止容量的降低。 根据本发明的无线通信方法，无线基站装置生成包含载波指示符字段信息的下行链路控制信息的下行控制信道信号，向用户终端发送下​​行控制信道信号，用户终端接收 下行链路控制信道信号，并且根据下行链路控制信息执行关于下行链路信号的信号处理。 在这种情况下，载波指示符字段信息是将载波索引与要调度的二次小区子帧的索引相关联的信息。

    Terminal, radio communication method, base station, and system
    48.
    发明授权
    Terminal, radio communication method, base station, and system 有权

    公开(公告)号：US11638168B2

    公开(公告)日：2023-04-25

    申请号：US17343902

    申请日：2021-06-10

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroki Harada ,  Satoshi Nagata ,  Jing Wang ,  Liu Liu ,  Huiling Jiang

    IPC: H04W24/10 ,  H04W16/28 ,  H04W88/02

    Abstract: A terminal is disclosed that includes a receiver that receives a measurement configuration including an information on a number of reports. The terminal also includes a processor that, when reporting of a cell-level measurement result is triggered, controls reporting of a beam-level measurement result based on the information on the number of reports, where the measurement configuration includes a maximum number of beam-level measurement result reports. In other aspects, a radio communication method, a base station, and a system are also disclosed.

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