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    Method for creating a virtual user-plane cell, computer system, apparatus for a wireless communication system, control plane base station, and wireless communication system
    1.
    发明公开
    Method for creating a virtual user-plane cell, computer system, apparatus for a wireless communication system, control plane base station, and wireless communication system 审中-公开
    生成虚拟用户平面单元计算机系统中，用于无线通信系统中的装置，控制平面基站和无线通信系统的方法

    公开(公告)号：EP2804413A1

    公开(公告)日：2014-11-19

    申请号：EP13168087.8

    申请日：2013-05-16

    申请人： NTT DoCoMo, Inc.

    发明人： Agyapong, Patrick ,  Ternon, Emmanuel ,  Hu, Liang ,  Taoka, Hidekazu

    IPC分类号： H04W16/32 ,  H04W24/02 ,  H04W84/04

    CPC分类号： H04W16/32 ,  H04W16/10

    摘要： A method for creating in a wireless communication system a virtual user-plane cell including a user-plane base station is described. The wireless communication system comprises a control-plane base station having a coverage area including a plurality of user-plane base stations. The method comprises identifying (206) an anchor user from a user set in the coverage area of the control-plane base station, selecting (208) from the plurality of user-plane base stations in the coverage area of the control-plane base station a user-plane base station allowing to serve the anchor user, associating (214) the mobile stations from the user set that can be served with a power spectral density lower than the anchor user by the selected user-plane base station with the selected user-plane base station, and creating a virtual user-plane cell including the selected user-plane base station and the users associated with the selected user-plane base station.

    摘要翻译： 描述了一种用于在无线通信系统中创建虚拟用户平面电池，包括用户平面基站的方法。 该无线通信系统包括具有覆盖区域的控制平面基站，包括用户平面基地台的多个。 所述方法包括鉴定（206），以从在所述控制平面的基站的覆盖区域内设置一个用户锚定用户，在控制平面基站的覆盖区域从用户平面的基站的多元选择（208） 的用户平面的基站允许从用户组服务锚用户，关联（214）的移动站也可以与所选择的用户的功率谱密度比所述锚用户下由所选择的用户平面基站服务 - 平面基站，和创建一个虚拟用户平面电池，其包括所选择的用户面的基站，并与所选择的用户面基站相关联的用户。

    Transmitter and transmission method
    2.
    发明公开
    Transmitter and transmission method 审中-公开
    发件人和Sendeverfahren

    公开(公告)号：EP2584713A2

    公开(公告)日：2013-04-24

    申请号：EP13151826.8

    申请日：2008-06-17

    申请人： NTT DoCoMo, Inc.

    发明人： Taoka, Hidekazu ,  Abe, Tetsushi

    IPC分类号： H04B7/06 ,  H04B7/04

    CPC分类号： H04B7/0456 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0689

    摘要： A transmitter includes multiple transmit antennas, a conversion unit configured to generate multiple signal sequences corresponding to a predefined frequency bandwidth from one or more transmission streams associated with any of the transmit antennas, a precoding unit configured to weight the signal sequences with a precoding matrix selected from a codebook including multiple predefined precoding matrices, and a transmitting unit configured to convert an output signal from the precoding unit into a number of signals corresponding to the number of transmit antennas and transmit the converted signals from the transmit antennas. The precoding unit applies distinct precoding matrices to different signal sequences, and an association between the distinct precoding matrices and the different signal sequences is determined through open-loop control being independent of a feedback from a receiver.

    摘要翻译： 发射机包括多个发射天线，转换单元，被配置为从与所述发射天线中的任一发射天线相关联的一个或多个传输流产生对应于预定义频率带宽的多个信号序列;预编码单元，被配置为用所选择的预编码矩阵对所述信号序列进行加权 从包括多个预定义预编码矩阵的码本，以及发送单元，被配置为将来自预编码单元的输出信号转换成与发送天线数量相对应的信号数，并从发送天线发送转换后的信号。 预编码单元将不同的预编码矩阵应用于不同的信号序列，并且不同的预编码矩阵和不同的信号序列之间的关联通过开环控制来确定，独立于来自接收机的反馈。

    Method for transmitting MIMO related information
    3.
    发明公开
    Method for transmitting MIMO related information 有权
    Verfahren zurÜbertragungvon MIMO-bezogenen Informationen

    公开(公告)号：EP2385645A3

    公开(公告)日：2017-04-05

    申请号：EP11164598.2

    申请日：2011-05-03

    申请人： NTT DOCOMO, INC.

    发明人： Zhu, Jianchi ,  She, Xiaoming ,  Chen, Lan ,  Taoka, Hidekazu ,  Suda, Hirohito

    IPC分类号： H04L1/00

    CPC分类号： H04L1/0031 ,  H04B7/0413 ,  H04L1/1896 ,  H04L5/0023 ,  H04L5/0091 ,  H04L25/03866 ,  H04W72/042

    摘要： The present invention provides a method for transmitting MIMO related information. The method includes: encoding MIMO related information of a user equipment (UE) by a base station, and transmitting downlink control signaling including a result of the encoding; receiving by the UE the downlink control signaling transmitted by the base station, obtaining the result of the encoding, and obtaining the MIMO related information of the UE by decoding the result of the encoding. By adopting the method, the base station is enabled to transmit MIMO related information required by the UE to the UE with small signaling overhead.

    摘要翻译： 本发明提供了一种用于发送MIMO相关信息的方法。 该方法包括：由基站对用户设备（UE）的MIMO相关信息进行编码，发送包含编码结果的下行控制信令; 由UE接收由基站发送的下行链路控制信令，获得编码的结果，并通过解码编码的结果来获得UE的MIMO相关信息。 通过采用该方法，基站能够以小的信令开销向UE发送UE所需的MIMO相关信息。

    Method for resource allocation in a wireless communication network
    4.
    发明公开
    Method for resource allocation in a wireless communication network 审中-公开
    在einem drahtlosen Kommunikationsnetzwerk的Verfahren zur Ressourcenzuweisung

    公开(公告)号：EP2458767A1

    公开(公告)日：2012-05-30

    申请号：EP10192598.0

    申请日：2010-11-25

    申请人： NTT DoCoMo, Inc.

    发明人： Weitkemper, Petra ,  Taoka, Hidekazu

    IPC分类号： H04L1/18 ,  H04L1/00

    CPC分类号： H04L1/1819 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/1825 ,  H04L2001/0097

    摘要： An approach for resource allocation in a wireless communication network including a sender (100), a relay station (104) and a receiver (102) in case of a retransmission of information from the relay station (104) to the receiver (102) is described, wherein a resource necessary for retransmission is determined on the basis of the relayed channel and the relay function.

    摘要翻译： 在从中继站（104）向接收机（102）重发信息的情况下，在包括发送方（100），中继站（104）和接收方（102）的无线通信网络中进行资源分配的方法是 其中，基于中继信道和中继功能来确定重传所需的资源。

    Signaling and interference estimation for dynamic fractional reuse
    7.
    发明公开
    Signaling and interference estimation for dynamic fractional reuse 审中-公开
    Wiederverwendung的信号和干扰

    公开(公告)号：EP2852238A1

    公开(公告)日：2015-03-25

    申请号：EP13185135.4

    申请日：2013-09-19

    申请人： NTT DoCoMo, Inc.

    发明人： Dotzler, Andreas ,  Utschick, Wolfgang ,  Taoka, Hidekazu ,  Kusume, Katsutoshi

    IPC分类号： H04W72/08 ,  H04W72/04

    CPC分类号： H04W72/082 ,  H04W72/0413

    摘要： A method for determining at a user equipment (200) of a wireless communication system an interference estimate for at least one of a plurality of reuse patterns of a fractional reuse scheme used by the wireless communication system, comprises (a) receiving, at the user equipment (200), information about a reuse pattern currently used by the wireless communication system for a communication with the user equipment (200), and information about at least one further reuse pattern of the fractional reuse scheme; (b) determining, by the user equipment (200), a current interference estimate for the currently used reuse pattern; and (c) determining, by the user equipment (200), an interference estimate for the at least one further reuse pattern based on the determined current interference estimate.

    摘要翻译： 一种用于在无线通信系统的用户设备（200）处确定由无线通信系统使用的分数重用方案的多个重用模式中的至少一个的干扰估计的方法，包括：（a）在所述用户 设备（200），关于无线通信系统当前用于与用户设备（200）的通信的再利用模式的信息，以及关于小数重用方案的至少一个其他重用模式的信息; （b）由用户设备（200）确定当前使用的重用模式的当前干扰估计; 以及（c）基于所确定的当前干扰估计，由用户设备（200）确定所述至少一个另外的再利用模式的干扰估计。

    Radio base station apparatus, mobile station apparatus and radio communication method
    10.
    发明公开
    Radio base station apparatus, mobile station apparatus and radio communication method 审中-公开
    Funkbasisstationsvorrichtung，Mobilstationsvorrichtung und Funkkommunikationsverfahren

    公开(公告)号：EP2860896A2

    公开(公告)日：2015-04-15

    申请号：EP14193220.2

    申请日：2010-03-16

    申请人： NTT DOCOMO, INC.

    发明人： Kishiyama, Yoshihisa ,  Taoka, Hidekazu ,  Sawahashi, Mamoru

    IPC分类号： H04L1/00 ,  H04L5/00 ,  H04L25/02

    摘要： To provide a radio base station apparatus and radio communication method capable of performing radio communications using downlink reference signal structures suitable for antenna virtualization, a radio base station apparatus (200) has a plurality of transmission antennas, generates CRSs used in demodulation of at least downlink control information, CQI-RSs generated for each of the transmission antennas used in measurement of channel quality, and DM-RSs generated for each stream used in demodulation of downlink transmission data, and multiplexes the CRSs, CQI-RSs and DM-RSs into a same transmission time unit to transmit from each of the antennas.

    摘要翻译： 为了提供能够使用适合于天线虚拟化的下行链路参考信号结构进行无线通信的无线基站装置和无线通信方法，无线基站装置（200）具有多个发送天线，生成用于至少下行链路的解调的CRS 控制信息，针对在信道质量的测量中使用的每个发送天线生成的CQI-RS以及对下行链路发送数据的解调中使用的每个流生成的DM-RS，并将CRS，CQI-RS和DM-RS复用为 相同的传输时间单元从每个天线发送。