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1. 发明申请

US20170012687A1 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：US20170012687A1
公开(公告)日：2017-01-12
申请号：US15122003
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： H04B7/06 , H04B7/04
CPC分类号： H04B7/068 , H04B7/0456 , H04B7/0617 , H04B7/0667 , H04L25/03006
摘要： A radio base station with a transmission processing section that converts a symbol allocated at a higher symbol rate than a Nyquist rate in a given time domain and/or frequency domain into a symbol allocated at a symbol rate of the Nyquist rate or less in the given time domain and/or frequency domain to generate an OFDMA (Orthogonal Frequency Division Multiple Access) signal for each of a plurality of antennas. The radio base station also includes a transmission section that transmits the 01-DMA signal of each of the plurality of antennas to a user terminal, where the transmission processing section applies transmit diversity with the plurality of antennas to the symbol allocated at the higher symbol rate to improve throughput in a radio communication system using transmit diversity.
摘要翻译：一种具有传输处理部分的无线电基站，其将在给定时域和/或频域中以比奈奎斯特速率更高的符号速率分配的符号转换为在给定的奈奎斯特率或更低的符号率下分配的符号时域和/或频域以产生用于多个天线中的每一个的OFDMA（正交频分多址）信号。无线基站还包括发送部，其将多个天线中的每一个的01-DMA信号发送到用户终端，其中发送处理部分将具有多个天线的发射分集应用于以较高符号率分配的符号以提高使用发射分集的无线电通信系统中的吞吐量。

2. 发明授权

US09370014B2 Radio communication apparatus and method 有权
公开(公告)号：US09370014B2
公开(公告)日：2016-06-14
申请号：US13890886
申请日：2013-05-09
申请人： NTT DOCOMO, INC.
发明人： Motohiro Tanno , Hiroyuki Atarashi , Kenichi Higuchi , Mamoru Sawahashi
IPC分类号： H04B17/00 , H04W72/08 , H04L12/28 , H04W72/04
CPC分类号： H04W72/085 , H04L12/2854 , H04W72/0413
摘要： In a radio communication system, a downlink frequency band includes a plurality of frequency blocks including one or more carrier frequencies, and one or more frequency blocks are used for data transmission to a single user. A radio communication apparatus for use in the communication system has an evaluation unit evaluating the quality of a received signal for each frequency block and storing plurality of stored quality evaluations of the received signal, a comparison unit comparing the plural quality evaluations of the received signal, and a transmission unit transmitting a predetermined number of the quality evaluations of the received signal over an uplink control channel.

3. 发明授权

US09185687B2 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：发送和接收带宽设置方法，定义多个信号带宽的无线电通信系统中的移动终端和基站
公开(公告)号：US09185687B2
公开(公告)日：2015-11-10
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： H04B7/00 , H04B15/00 , H04W72/04 , H04B1/707 , H04L5/00 , 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。

4. 发明授权

US08948159B2 Transmitter, receiver, mobile communication system and synchronization channel 有权
标题翻译：发射机，接收机，移动通信系统和同步信道
公开(公告)号：US08948159B2
公开(公告)日：2015-02-03
申请号：US13742105
申请日：2013-01-15
申请人： NTT DOCOMO, INC.
发明人： Motohiro Tanno , Kenichi Higuchi , Mamoru Sawahashi , Yoshihisa Kishiyama
IPC分类号： H04J3/06 , H04L7/04
CPC分类号： H04L27/2656 , H04B1/7075 , H04L5/0026 , H04L5/0048 , H04L7/08 , H04L25/0204 , H04L25/0226 , H04L25/0228 , H04L25/03866 , H04L27/2613 , H04L27/2627 , H04L27/2662
摘要： A transmitter includes an amplitude adjustment unit multiplying an amplitude adjustment sequence value for adjusting amplitude with a synchronization channel transmitted from a base station for establishing synchronization with a mobile station.
摘要翻译：发射机包括：幅度调整单元，将用于调整振幅的幅度调整序列值与从基站发送的用于建立与移动台的同步的同步信道相乘。

5. 发明授权

US08873499B2 User apparatus, base station apparatus, and method 有权
标题翻译：用户装置，基站装置和方法
公开(公告)号：US08873499B2
公开(公告)日：2014-10-28
申请号：US14015712
申请日：2013-08-30
申请人： NTT DoCoMo, Inc.
发明人： Teruo Kawamura , Kenichi Higuchi , Mamoru Sawahashi
IPC分类号： H04W4/00 , H04J11/00 , G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , H04L5/00 , H04W72/08 , H04J13/00 , H04L1/16
CPC分类号： H04W72/08 , H04J13/0059 , H04L1/0026 , H04L1/0081 , H04L1/1671 , H04L5/0007 , H04L5/0053 , H04L5/006 , H04L5/0064 , H04L5/0091
摘要： A user apparatus generates an uplink control channel including at least one of acknowledgement information and channel condition information on an downlink, and transmits the uplink control channel in a predefined dedicated band if no resource is assigned to transmit an uplink data channel. The uplink control channel includes multiple unit block sequences resulting from multiplication of the same factor with all chips of a CAZAC code sequence for the user apparatus.
摘要翻译：用户装置生成包括下行链路中的确认信息和信道条件信息中的至少一个的上行链路控制信道，如果没有分配资源来发送上行链路数据信道，则将上行链路控制信道发送到规定的专用频带。上行链路控制信道包括由相同因子与用户装置的CAZAC码序列的所有码片相乘而产生的多个单位块序列。

6. 发明申请

US20140226515A1 RADIO COMMUNICATIONS SYSTEM, BASE STATION, USER APPARATUS, AND METHOD 审中-公开
标题翻译：无线电通信系统，基站，用户装置和方法
公开(公告)号：US20140226515A1
公开(公告)日：2014-08-14
申请号：US14256088
申请日：2014-04-18
申请人： NTT DOCOMO, INC.
发明人： Yoshihisa Kishiyama , Motohiro Tanno , Mamoru Sawahashi
IPC分类号： H04W24/08
CPC分类号： H04W24/08 , H04W36/08 , H04W36/30
摘要： A mobile communications system having a first base station and one or more second base stations is disclosed, wherein the first base station includes a first generator which generates a first known signal for use in common between the first base station and the second base station and a second known signal use specific to each of the first base station and the second base station, and a radio transmitter which wirelessly transmits, to a subordinate terminal apparatus, the first known signal and the second known signal which are generated by the first generator.
摘要翻译：公开了具有第一基站和一个或多个第二基站的移动通信系统，其中所述第一基站包括第一生成器，其生成用于在所述第一基站和所述第二基站之间共同使用的第一已知信号，以及对第一基站和第二基站中的每一个特定的第二已知信号使用，以及无线发射机，其向下属终端装置无线地发送由第一发生器产生的第一已知信号和第二已知信号。

7. 发明申请

US20140086170A1 MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, USER EQUIPMENT, AND METHOD 审中-公开
标题翻译：移动通信系统，基站设备，用户设备和方法
公开(公告)号：US20140086170A1
公开(公告)日：2014-03-27
申请号：US14031960
申请日：2013-09-19
申请人： NTT DOCOMO, INC.
发明人： Nobuhiko Miki , Mamoru Sawahashi , Kenichi Higuchi
IPC分类号： H04L5/00
CPC分类号： H04L5/0055 , H04L1/1607 , H04L1/1861 , H04L5/0053 , H04L27/3405
摘要： A base station apparatus is used in a mobile communication system in which at least a shared data channel is transmitted by an orthogonal modulation scheme using an I-channel and a Q-channel. The base station apparatus includes a providing unit providing Acknowledgement/Non-Acknowledgement information indicating whether retransmission of a signal received in uplink is required; a mapping unit mapping a number of multiplexed users of the Acknowledgement/Non-Acknowledgement information to the I-channel or the Q-channel based on a predetermined mapping table; and a reporting unit reporting the Acknowledgement/Non-Acknowledgement information to the respective users. The mapping table indicates that, when the number of the multiplexed users is equal to or less than a predetermined number, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel or the Q-channel, and otherwise, the Acknowledgement/Non-Acknowledgement information is associated with the I-channel and the Q-channel.
摘要翻译：在移动通信系统中使用基站装置，其中通过使用I信道和Q信道的正交调制方案来发送至少共享数据信道。基站装置包括：提供单元，其提供表示是否需要在上行链路中接收到的信号的重传的确认/不确认信息; 映射单元，基于预定的映射表，将所述确认/非确认信息的复用用户数映射到所述I信道或所述Q信道; 以及向相应用户报告确认/不确认信息的报告单元。映射表指示当多路复用用户的数量等于或小于预定数量时，确认/不确认信息与I信道或Q信道相关联，否则，确认/非确认信息 - 确认信息与I通道和Q通道相关联。

8. 发明申请

US20140003398A1 USER APPARATUS, BASE STATION APPARATUS, AND METHOD 有权
标题翻译：用户装置，基站装置和方法
公开(公告)号：US20140003398A1
公开(公告)日：2014-01-02
申请号：US14015712
申请日：2013-08-30
申请人： NTT DOCOMO, INC.
发明人： Teruo Kawamura , Kenichi Higuchi , Mamoru Sawahashi
IPC分类号： H04W72/08
CPC分类号： H04W72/08 , H04J13/0059 , H04L1/0026 , H04L1/0081 , H04L1/1671 , H04L5/0007 , H04L5/0053 , H04L5/006 , H04L5/0064 , H04L5/0091
摘要： A user apparatus generates an uplink control channel including at least one of acknowledgement information and channel condition information on an downlink, and transmits the uplink control channel in a predefined dedicated band if no resource is assigned to transmit an uplink data channel. The uplink control channel includes multiple unit block sequences resulting from multiplication of the same factor with all chips of a CAZAC code sequence for the user apparatus.
摘要翻译：用户装置生成包括下行链路中的确认信息和信道条件信息中的至少一个的上行链路控制信道，如果没有分配资源来发送上行链路数据信道，则将上行链路控制信道发送到规定的专用频带。上行链路控制信道包括由相同因子与用户装置的CAZAC码序列的所有码片相乘而产生的多个单位块序列。

9. 发明申请

US20130301576A1 BASE STATION AND TRANSMISSION METHOD 审中-公开
标题翻译：基站和传输方法
公开(公告)号：US20130301576A1
公开(公告)日：2013-11-14
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： H04W72/04
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。

10. 发明授权

US11171819B2 Base station, synchronization signal transmission method, and user equipment terminal, and cell search method 有权
公开(公告)号：US11171819B2
公开(公告)日：2021-11-09
申请号：US16466216
申请日：2017-12-14
申请人： NTT DOCOMO, INC.
发明人： Yoshihisa Kishiyama , Satoshi Nagata , Keisuke Saito , Mamoru Sawahashi
IPC分类号： H04W72/04 , H04L27/26 , H04L5/00
摘要： A base station for transmitting a synchronization signal from N transmission antennas (N>=2) in orthogonal frequency division multiple access includes a signal sequence generation unit configured to generate a synchronization signal sequence to be used for the synchronization signal in a frequency domain; a subcarrier mapping unit configured to divide a transmission band of the synchronization signal into K frequency blocks (K>=2) and map the synchronization signal sequence into one or more subcarriers in the K frequency blocks; a precoding unit configured to generate N precoding vectors to be multiplied by the synchronization signal sequence in the frequency domain and multiply the synchronization signal sequence to be transmitted from an n-th antenna (1

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