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31. 发明申请

US20160381583A1 RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD 审中-公开
标题翻译：无线基站，用户终端和无线电通信方法
公开(公告)号：US20160381583A1
公开(公告)日：2016-12-29
申请号：US15121693
申请日：2015-02-27
申请人： NTT DOCOMO, INC.
发明人： Mamoru Sawahashi , Teruo Kawamura , Yoshihisa Kishiyama
IPC分类号： H04W24/08 , H04B7/04 , H04W72/04 , H04L5/14
CPC分类号： H04W24/08 , H04B7/0413 , H04B7/0456 , H04B7/0617 , H04L5/14 , H04W72/0446
摘要： The present invention is designed to reduce the overhead of reference signals for measuring CSI in high-order MIMO multiplexing technique. A radio base station is used in a radio communications system of a frequency division duplexing (FDD) scheme, and has a receiving section that receives reference signals for measuring time division duplex (TDD) channel state information, transmitted from a plurality of antennas provided in a user terminal, a measurement section that measures the channel state information, in a plurality of receiving antennas, by using the reference signals, a generation/selection section that generates an optimal precoding vector from the channel state information measured in each receiving antenna, or selects the optimal precoding vector from a set of precoding vectors that is defined in advance, and a transmission section that transmits a physical downlink shared channel, in MIMO multiplexing transmission, by using the precoding vector selected in the generation/selection section.
摘要翻译：本发明旨在降低用于在高阶MIMO复用技术中测量CSI的参考信号的开销。无线电基站用于频分双工（FDD）方案的无线电通信系统中，并具有一个接收部分，该接收部分接收用于测量时分双工（TDD）信道状态信息的参考信号，用户终端，通过使用参考信号测量多个接收天线中的信道状态信息的测量部分;生成/选择部分，其从在每个接收天线中测量的信道状态信息生成最佳预编码矢量，或者从MIMO生成/选择部中选择的预编码向量，在MIMO复用传输中，从预先定义的一组预编码矢量中选择最优预编码矢量，以及发送物理下行链路共享信道的发送部。

32. 发明授权

US09313787B2 Base station and transmission method 有权
标题翻译：基站和传输方式
公开(公告)号：US09313787B2
公开(公告)日：2016-04-12
申请号：US13940049
申请日：2013-07-11
申请人： NTT DOCOMO, INC.
发明人： Nobuhiko Miki , Kenichi Higuchi , Mamoru Sawahashi
IPC分类号： H04W72/12 , H04W72/04 , H04B7/26 , H04L1/08 , H04L1/00 , H04L1/18 , H04L5/00 , H04W88/08
CPC分类号： H04W72/0453 , H04B7/2621 , H04L1/0003 , H04L1/0013 , H04L1/0026 , H04L1/0027 , H04L1/003 , H04L1/08 , H04L1/1812 , H04L5/0037 , H04L5/0048 , H04L5/006 , H04L5/0094 , H04W72/12 , H04W88/08
摘要： A communication terminal in a multi-carrier system using a frequency bandwidth including a plurality of resource blocks, each of the resource blocks including one or more sub-carriers. The communication terminal includes a receiving unit configured to receive a signal in which a control channel is multiplexed into a single radio frame based on a number of control channels allocated into the single radio frame to use a lower coding rate by repeating transmitting without changing encoding method in which a channel other than the control channel is multiplexed in accordance with scheduling information for allocating one or more of the plurality of resource blocks to the communication terminal and a processing unit configured to perform a process on the signal received by the receiving unit.
摘要翻译：使用包括多个资源块的频率带宽的多载波系统中的通信终端，每个资源块包括一个或多个子载波。通信终端包括：接收单元，被配置为基于分配给单个无线电帧的控制信道的数量来将控制信道复用到单个无线电帧中的信号，以通过重复发送而不改变编码方法来使用较低的编码率其中除控制信道之外的信道根据用于将多个资源块中的一个或多个分配给通信终端的调度信息被复用，以及处理单元，被配置为对接收单元接收的信号执行处理。

33. 发明授权

US08737283B2 Transmission device and transmission method 有权
标题翻译：传输装置及传输方式
公开(公告)号：US08737283B2
公开(公告)日：2014-05-27
申请号：US13763299
申请日：2013-02-08
申请人： NTT DoCoMo, Inc.
发明人： Kenichi Higuchi , Yoshihisa Kishiyama , Mamoru Sawahashi
IPC分类号： H04H20/71 , H04W4/00 , H04B7/216 , H04J3/00 , H04L12/28
CPC分类号： H04L27/2607 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L5/0007 , H04L5/0044 , H04L27/2605 , H04L27/2626 , H04W72/005
摘要： A disclosed OFDM-based transmission device includes a unicast channel generating unit configured to generate a unicast channel; an MBMS channel generating unit configured to generate an MBMS channel; a multiplexing unit configured to time-division-multiplex the unicast channel and the MBMS channel in the same frequency band; and a transmitting unit configured to transmit time-division-multiplexed transmission symbols. In the disclosed transmission device, the guard interval length for the MBMS channel is set longer than the guard interval length for the unicast channel.
摘要翻译：所公开的基于OFDM的传输设备包括被配置为生成单播信道的单播信道生成单元; MBMS信道生成部，生成MBMS信道; 复用单元，被配置为在同一频带中对单播信道和MBMS信道进行时分复用; 以及发送单元，被配置为发送时分复用的发送符号。在所公开的发送装置中，MBMS信道的保护间隔长度被设定为比单播信道的保护间隔长度长。

34. 发明申请

US20140056264A1 TRANSMISSION AND RECEPTION BANDWIDTH SETTING METHOD, MOBILE TERMINAL AND BASE STATION IN RADIO COMMUNICATION SYSTEM THAT DEFINES A PLURALITY OF SIGNAL BANDWIDTHS 有权
标题翻译：传输和接收带宽设置方法，无线电通信系统中的移动终端和基站定义了信号带宽的多项式
公开(公告)号：US20140056264A1
公开(公告)日：2014-02-27
申请号：US14069123
申请日：2013-10-31
申请人： NTT DOCOMO, INC.
发明人： Kenichi Higuchi , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04W72/04 , H04W74/08
CPC分类号： H04W72/04 , H04B1/707 , H04L5/003 , H04L5/0058 , H04W74/0816
摘要： In a radio communication system defining a plurality of bandwidths, mobile terminals of kinds respectively corresponding to the plurality of bandwidths are accommodated in the system, and a minimum transmission bandwidth of the plurality of bandwidths is set as a transmission bandwidth of a downlink common channel. Or, every mobile terminal accommodated in the radio communication system is provided with a capability for processing a bandwidth equal to or greater than a predetermined value, and equal to or more than two transmission bandwidths that are equal to or less than a predetermined value are set as a transmission bandwidth of a downlink common channel. In the latter case, the mobile terminal identifies a bandwidth of a received downlink common channel.
摘要翻译：在定义多个带宽的无线通信系统中，分别对应于多个带宽的类型的移动终端被容纳在系统中，并且将多个带宽的最小传输带宽设置为下行链路公共信道的传输带宽。或者，容纳在无线通信系统中的每个移动终端被提供有处理等于或大于预定值的带宽的能力，并且等于或大于等于或小于预定值的两个传输带宽被设置作为下行链路公共信道的传输带宽。在后一种情况下，移动终端识别所接收的下行链路公共信道的带宽。

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