公开(公告)号：US08780850B2

公开(公告)日：2014-07-15

申请号：US13656373

申请日：2012-10-19

Applicant: NTT Docomo, Inc.

Inventor： Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

IPC: H04W4/00

CPC classification number: H04L5/0053 ,  H04J13/0059 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/16 ,  H04L1/1607 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0092

Abstract: A user equipment terminal for transmitting an uplink control channel to a base station according to a single carrier scheme includes a reception determining unit configured to determine reception of data, which are transmitted from the base station according to scheduling, and generate a reception determination result as first control information; and a control information multiplexing unit configured to assign the first control information to a first radio resource positioned at an end of a system band and assign second control information, which is transmitted with a radio resource dedicated to the user equipment terminal, to a predetermined position in a second radio resource adjacent to the first radio resource, to multiplex the first control information and the second control information into the uplink control channel. The present invention also relates to a base station and an uplink control channel configuration method.

Abstract translation: 根据单载波方式向基站发送上行链路控制信道的用户终端包括：接收判定部，其根据调度确定从基站发送的数据的接收，生成接收判定结果为 第一控制信息; 以及控制信息复用单元，被配置为将第一控制信息分配给位于系统频带的末端的第一无线电资源，并且将用用户设备终端专用的无线电资源发送的第二控制信息分配给预定位置 在与第一无线电资源相邻的第二无线电资源中，将第一控制信息和第二控制信息复用到上行链路控制信道中。 本发明还涉及基站和上行链路控制信道配置方法。

公开(公告)号：US20130329655A1

公开(公告)日：2013-12-12

申请号：US13890886

申请日：2013-05-09

Applicant: NTT DOCOMO, INC.

Inventor： Motohiro Tanno ,  Hiroyuki Atarashi ,  Kenichi Higuchi ,  Mamoru Sawahashi

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04L12/2854 ,  H04W72/0413

Abstract: 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.

公开(公告)号：US10256960B2

公开(公告)日：2019-04-09

申请号：US14031960

申请日：2013-09-19

Applicant: NTT DOCOMO, INC.

Inventor： Nobuhiko Miki ,  Mamoru Sawahashi ,  Kenichi Higuchi

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04L27/34

CPC classification number: H04L5/0055 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/0053 ,  H04L27/3405

Abstract: 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.

公开(公告)号：US09313787B2

公开(公告)日：2016-04-12

申请号：US13940049

申请日：2013-07-11

Applicant: NTT DOCOMO, INC.

Inventor： Nobuhiko Miki ,  Kenichi Higuchi ,  Mamoru Sawahashi

IPC: H04W72/12 ,  H04W72/04 ,  H04B7/26 ,  H04L1/08 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04W88/08

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20160029350A1

公开(公告)日：2016-01-28

申请号：US14765965

申请日：2014-01-22

Applicant: NTT DOCOMO, INC.

Inventor： Yoshihisa Kishiyama ,  Anass Benjebbour ,  Yuuya Saitou ,  Kenichi Higuchi

IPC: H04W72/04 ,  H04L5/00 ,  H04W16/28 ,  H04B7/04 ,  H04W72/08

CPC classification number: H04W72/042 ,  H04B7/0452 ,  H04B7/0689 ,  H04L5/0048 ,  H04W16/28 ,  H04W72/0453 ,  H04W72/082

Abstract: The present invention is designed to improve spectral efficiency in a radio communication system which can use non-orthogonal multiple access (NOMA). Steps are provided in which a radio base station configures one of a plurality of transmission mode including a first transmission mode, which groups a plurality of transmission methods including a transmission method to employ non-orthogonal multiple access (NOMA) and multiple-user multiple-input and multiple-output (MU-MIMO), and a second transmission mode, which groups a plurality of transmission methods including a transmission method to employ this NOMA and open-loop transmit diversity, and transmits a downlink signal for this user terminal based on the configured transmission mode.

Abstract translation: 本发明旨在提高可以使用非正交多址（NOMA）的无线电通信系统中的频谱效率。 提供了一种步骤，其中无线电基站配置包括第一传输模式的多个传输模式中的一个，其中分组多个传输方法，包括采用非正交多址接入（NOMA）和多用户多播 输入和多输出（MU-MIMO）以及第二传输模式，其对包括使用该NOMA和开环发射分集的传输方法的多个传输方法进行分组，并且基于 配置的传输模式。

公开(公告)号：US08737283B2

公开(公告)日：2014-05-27

申请号：US13763299

申请日：2013-02-08

Applicant: NTT DoCoMo, Inc.

Inventor： Kenichi Higuchi ,  Yoshihisa Kishiyama ,  Mamoru Sawahashi

IPC: H04H20/71 ,  H04W4/00 ,  H04B7/216 ,  H04J3/00 ,  H04L12/28

CPC classification number: H04L27/2607 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2605 ,  H04L27/2626 ,  H04W72/005

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140056264A1

公开(公告)日：2014-02-27

申请号：US14069123

申请日：2013-10-31

Applicant: NTT DOCOMO, INC.

Inventor： Kenichi Higuchi ,  Hiroyuki Atarashi ,  Mamoru Sawahashi

IPC: H04W72/04 ,  H04W74/08

CPC classification number: H04W72/04 ,  H04B1/707 ,  H04L5/003 ,  H04L5/0058 ,  H04W74/0816

Abstract: 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.

Abstract translation: 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。