公开(公告)号：US20140307576A1

公开(公告)日：2014-10-16

申请号：US14355320

申请日：2012-07-31

申请人： Satoshi Nagata ,  Yoshihisa Kishiyama ,  Anass Benjebbour ,  Wei Xi

发明人： Satoshi Nagata ,  Yoshihisa Kishiyama ,  Anass Benjebbour ,  Wei Xi

IPC分类号： H04W24/02 ,  H04W72/04

CPC分类号： H04W24/02 ,  H04B17/345 ,  H04J1/00 ,  H04J11/00 ,  H04L1/0001 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/20 ,  H04L5/0051 ,  H04L5/0094 ,  H04W72/0473

摘要： To increase the number of CSI-RSs for interference measurement to improve interference measurement accuracy, a first reference signal for channel state measurement and a second reference signal for interference measurement are assigned to reference signal resources defined for transmission of the first reference signal, and a mobile terminal apparatus that supports both the first reference signal and the second reference signal is notified of pattern information to identify an assignment pattern of the first reference signal and the second reference signal. A second mobile terminal apparatus that supports the first reference signal and that does not support the second reference signal is notified of pattern information to identify an assignment pattern of the first reference signal, and of assignment information indicating that resources assigned the second reference signal are assigned a third reference signal of zero power for channel state measurement.

摘要翻译： 为了增加用于干扰测量的CSI-RS的数量以改善干扰测量精度，将用于信道状态测量的第一参考信号和用于干扰测量的第二参考信号分配给用于传输第一参考信号的参考信号资源，以及 通知支持第一参考信号和第二参考信号的移动终端装置，以识别图形信息，以识别第一参考信号和第二参考信号的分配模式。 通知支持第一参考信号并且不支持第二参考信号的第二移动终端设备，用于识别第一参考信号的分配模式的模式信息，以及指示分配给第二参考信号的资源的分配信息被分配 用于通道状态测量的零功率的第三参考信号。

公开(公告)号：US20140133419A1

公开(公告)日：2014-05-15

申请号：US14117686

申请日：2012-05-10

申请人： Satoshi Nagata ,  Yu Jiang ,  Jing Wang ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Yu Jiang ,  Jing Wang ,  Xiaoming She ,  Lan Chen

IPC分类号： H04L5/00

CPC分类号： H04L5/0073 ,  H04W52/244 ,  H04W72/1257

摘要： Provided are a method for coordinating inter-cell interference in a radio network, a transmission point and the radio network. The method includes: a step A of a normal base station performing scheduling based on feedback information of users of the normal base station and obtain a user scheduling result of the normal base station including a parameter about actual transmission characteristics of the normal base station; a step B of the normal base station obtaining a performance estimating parameter including a parameter about actual transmission characteristics of each of the one or plurality of low-power base stations for both cases of normal base station without transmission and normal base station with transmission; a step C of the normal base station using the performance estimating parameter and the user scheduling result of the normal base station as a basis to determine weighting throughputs of all transmission points for the case of normal base station without transmission and weighting throughputs of all the transmission points for the case of normal base station with transmission; and a step D of the normal base station comparing the weighting throughputs of all the transmission points, obtaining a transmission determination result and performing data transmission based on the transmission determination result.

摘要翻译： 提供了一种用于协调无线电网络，传输点和无线电网络中的小区间干扰的方法。 该方法包括：正常基站的步骤A，基于正常基站的用户的反馈信息进行调度，获取正常基站的用户调度结果，该结果包括关于正常基站的实际传输特性的参数; 正常基站的步骤B获得包括一个或多个低功率基站中的每个低功率基站的实际传输特性的参数的性能估计参数，用于无传输的普通基站和正常基站的传输; 使用性能估计参数和正常基站的用户调度结果的正常基站的步骤C作为基础来确定在没有传输的情况下的所有发送点的所有发送点的加权吞吐量，以及所有传输的加权吞吐量 正常基站传输点数; 以及正常基站的步骤D，比较所有传输点的加权吞吐量，获得传输确定结果并根据传输确定结果执行数据传输。

公开(公告)号：US08693417B2

公开(公告)日：2014-04-08

申请号：US13126692

申请日：2009-10-29

申请人： Nobuhiko Miki ,  Satoshi Nagata ,  Yoshihisa Kishiyama ,  Mamoru Sawahashi

发明人： Nobuhiko Miki ,  Satoshi Nagata ,  Yoshihisa Kishiyama ,  Mamoru Sawahashi

IPC分类号： H04W72/08

CPC分类号： H04L1/06 ,  H04L1/0067 ,  H04L1/1893

摘要： To suppress deterioration of retransmission efficiency and retransmit a transmission signal efficiently, provided are a base station apparatus which divides, in a retransmission block dividing section, a transmission signal into retransmission blocks according to a retransmission block table with which are registered the numbers of the retransmission blocks, each of the transmission blocks is a retransmission unit of a transmission signal, the numbers of the retransmission blocks are required numbers corresponding to the number of transmission antennas and the system bandwidth in case that the maximum value of the size of the retransmission block is fixed to a certain value, and retransmits in downlink transmission signals associated with the divided retransmission blocks, and a mobile terminal apparatus which receives the transmission signals associated with the retransmission blocks from the base station apparatus, and combines the retransmission blocks to restore the transmission signal prior to division.

摘要翻译： 为了抑制重传效率的恶化并有效地重发传输信号，基站装置根据重传块表将重传块划分部分将发送信号划分为重发块，并根据重传块表登记重发次数 块，每个发送块是发送信号的重发单元，重发块的数量是与重发块的大小的最大值相对应的发送天线数和系统带宽的数量 固定为一定值，并重新发送与划分的重发块相关联的下行链路传输信号;以及移动终端装置，其从基站装置接收与重传块相关联的传输信号，并组合重传块以恢复传输si 在分裂之前。

公开(公告)号：US20140086201A1

公开(公告)日：2014-03-27

申请号：US14114606

申请日：2012-04-24

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama ,  Kazuaki Takeda

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama ,  Kazuaki Takeda

IPC分类号： H04J1/02

CPC分类号： H04J1/02 ,  H04L5/0053 ,  H04L5/006 ,  H04L25/0224 ,  H04W72/1289

摘要： The present invention is designed such that it is possible to optimize the effect of improving the efficiency of use of radio resources even when the number of user terminals to be multiplexed over the same radio resources is further increased. A user terminal performs downlink communication with a radio base station using a PDCCH resource region and a PDSCH resource region. The user terminal detects the starting position of the radio resources where the PDSCH and the PDCCH are frequency-division-multiplexed in the PDSCH resource region in the time direction, and receives the PDCCH that is frequency-division-multiplexed over the radio resources starting from the detected starting position.

摘要翻译： 本发明被设计成即使当在相同的无线电资源上被复用的用户终端的数量进一步增加时，也可以优化提高无线资源的使用效率的效果。 用户终端使用PDCCH资源区域和PDSCH资源区域与无线基站进行下行链路通信。 用户终端检测在PDSCH资源区域中的PDSCH和PDCCH在时间方向上被频分复用的无线电资源的起始位置，并且从无线电资源中开始频分复用的PDCCH 检测到的起始位置。

公开(公告)号：US20140073341A1

公开(公告)日：2014-03-13

申请号：US14116375

申请日：2012-05-10

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama ,  Jianchi Zhu ,  Xiang Yun

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama ,  Jianchi Zhu ,  Xiang Yun

IPC分类号： H04W52/38 ,  H04L5/00

CPC分类号： H04W52/38 ,  H04B7/024 ,  H04L5/0035 ,  H04W48/20 ,  H04W52/143 ,  H04W52/40 ,  H04W52/46 ,  H04W52/54

摘要： The present invention is designated to improve received quality in a mobile terminal apparatus when coordinated multiple-point transmission (CoMP)—in particular, DCS-CoMP—is adopted. With the radio communication method of the present invention, when dynamic cell selection-type coordinated multiple-point transmission is adopted, a radio base station apparatus increases transmission power in radio resources to transmit to a mobile terminal apparatus, transmits the increased transmission power to the mobile terminal apparatus as transmission power information and performs dynamic cell selection-type coordinated multiple-point transmission at the increased transmission power.

摘要翻译： 当采用协调的多点传输（CoMP） - 特别是DCS-CoMP时，本发明被指定为提高移动终端装置中的接收质量。 利用本发明的无线通信方法，当采用动态小区选择型协同多点发送时，无线基站装置增加无线资源的发送功率，向移动终端装置发送增加的发送功率， 移动终端装置作为发送功率信息，以增加的发送功率进行动态小区选择型协调的多点发送。

公开(公告)号：US20140064244A1

公开(公告)日：2014-03-06

申请号：US14114442

申请日：2012-02-09

申请人： Yoshihisa Kishiyama ,  Kazuaki Takeda ,  Satoshi Nagata ,  Tetsushi Abe

发明人： Yoshihisa Kishiyama ,  Kazuaki Takeda ,  Satoshi Nagata ,  Tetsushi Abe

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0053

摘要： The present invention is designed to provide a base station apparatus, a mobile terminal apparatus, a communication system and a communication method that cope with the shortage of downlink control channel capacity. For a mobile terminal apparatus that receives downlink signals using a resource region for downlink control signals and a resource region for downlink data signals, a base station apparatus is configured to set a plurality of virtual to resources for downlink control signals in a plurality of physical resources that are arranged in a frequency direction in the resource region for downlink data signals, and allocate the downlink control signals, in a distributed manner, between virtual resources of a relatively low frequency band side and virtual resources of a relatively high frequency band side in a plurality of virtual resources.

摘要翻译： 本发明旨在提供一种应对下行链路控制信道容量不足的基站装置，移动终端装置，通信系统和通信方法。 对于使用用于下行链路控制信号的资源区域和下行链路数据信号的资源区域来接收下行链路信号的移动终端装置，基站装置被配置为在多个物理资源中设置用于下行链路控制信号的多个虚拟资源 在下行链路数据信号的资源区域中沿频率方向排列，并且以相对低频带侧的虚拟资源和相对高频带侧的虚拟资源之间的分散方式分配下行链路控制信号 多个虚拟资源。

公开(公告)号：US08639999B2

公开(公告)日：2014-01-28

申请号：US13126706

申请日：2009-10-29

申请人： Nobuhiko Miki ,  Satoshi Nagata ,  Yoshihisa Kishiyama ,  Mamoru Sawahashi

发明人： Nobuhiko Miki ,  Satoshi Nagata ,  Yoshihisa Kishiyama ,  Mamoru Sawahashi

IPC分类号： H03M13/00

CPC分类号： H04L1/06 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/003

摘要： To suppress deterioration of retransmission efficiency and retransmit a transmission signal efficiently even when the system bandwidth is extended, provided are a base station apparatus (20) which divides, in a retransmission block dividing section (21), a transmission signal into retransmission blocks according to a retransmission block table in which the number of the retransmission blocks each of which is a retransmission unit of a transmission signal is increased corresponding to the number of transmission antennas and registered, and retransmits in downlink transmission signals associated with the divided retransmission blocks, and a mobile terminal apparatus (10) which receives the transmission signals associated with the retransmission blocks from the base station apparatus (20), and combines the retransmission blocks to restore the transmission signal prior to division.

摘要翻译： 为了抑制重发效率的恶化，即使在系统带宽扩展时也有效地重传发送信号，在基站装置（20）中，根据重发块分割部（21）将发送信号分割为重发块， 其中发送信号的重传单元的重传块的数量根据发送天线的数量而增加并被登记，并且重发与分割的重发块相关联的下行链路发送信号， 移动终端装置（10），其从所述基站装置（20）接收与所述重发块相关联的发送信号，并且组合所述重传块以在分割之前恢复所述发送信号。

公开(公告)号：US20140016533A1

公开(公告)日：2014-01-16

申请号：US14006764

申请日：2012-03-22

申请人： Satoshi Nagata ,  Xiang Yun ,  Lan Chen ,  Xiaoming She ,  Juejia Zhou ,  Hirohito Suda

发明人： Satoshi Nagata ,  Xiang Yun ,  Lan Chen ,  Xiaoming She ,  Juejia Zhou ,  Hirohito Suda

IPC分类号： H04L12/18

CPC分类号： H04L12/1881 ,  H04B7/04 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0035 ,  H04W16/28 ,  H04W24/10 ,  H04W72/046 ,  H04W72/12

摘要： A base station receives channel state information corresponding to each of spare coordinated groups from each of user devices. A first group includes a plurality of coordinated groups arranged in advance. The spare coordinated groups corresponding to each user device are such as selected from the first group and include at least a service sector of best channel quality obtained measurement by the user device. The base station specifies a user device group corresponding to each of coordinated groups contained in each of coordinated group patterns. The user device group corresponding to the coordinated group is formed of user devices having the coordinated group in their spare coordinated groups. The base station uses channel state information reported from the user devices of the user device group corresponding to the coordinated group as a basis to perform user scheduling on the coordinated group.

摘要翻译： 基站从每个用户设备接收对应于每个备用协调组的信道状态信息。 第一组包括预先排列的多个协调组。 与每个用户设备相对应的备用协作组例如从第一组中选择，并且至少包括由用户设备获得的测量获得的最佳信道质量的服务扇区。 基站指定与每个协调组模式中包含的每个协调组对应的用户设备组。 对应于协调组的用户设备组由其备用协调组中具有协调组的用户设备组成。 基站使用从与协作组对应的用户装置组的用户装置报告的信道状态信息作为对协调组进行用户调度的依据。

公开(公告)号：US20130336150A1

公开(公告)日：2013-12-19

申请号：US13985355

申请日：2012-02-13

申请人： Tetsushi Abe ,  Satoshi Nagata ,  Mikio Iwamura

发明人： Tetsushi Abe ,  Satoshi Nagata ,  Mikio Iwamura

IPC分类号： H04W72/08

CPC分类号： H04W72/085 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0062 ,  H04L5/0073 ,  H04L5/0091 ,  H04L5/0098 ,  H04L25/0204 ,  H04W24/10

摘要： The present invention makes it possible to transmit and receive CSI-RSs adequately even when the number of CSI-RSs increase following the increase of antennas. The present invention provides a base station apparatus (20) that transmits CSI-RSs to a mobile terminal apparatus (10A) which is capable of receiving CSI-RSs for channel state measurement from a plurality of antennas, and to a mobile terminal apparatus (10B) which is capable of receiving CSI-RSs from a smaller number of antennas than the mobile terminal apparatus, and this base station apparatus has a CSI-RS allocation section (211) which allocates CSI-RSs for the number of antennas which the mobile terminal apparatus (10A) supports, to radio resources, and a transmitting/receiving section which reports, to the mobile terminal apparatus (10A), the resources where the CSI-RSs are allocated, and which, upon reporting the resources where CSI-RSs are allocated, to the mobile terminal apparatus (10B), reports part of the resources as resources to be muted.

摘要翻译： 即使CSI-RS的数量随着天线的增加而增加，本发明也可以适当地发送和接收CSI-RS。 本发明提供一种向能够从多个天线接收用于信道状态测量的CSI-RS的移动终端装置（10A）向移动终端装置（10B）发送CSI-RS的基站装置（20） ），其能够从比移动终端装置更少数量的天线接收CSI-RS，并且该基站装置具有CSI-RS分配部（211），CSI-RS分配部（211）为移动终端 对无线电资源支持装置（10A）以及向移动终端装置（10A）报告分配了CSI-RS的资源的发送/接收部分，并且在报告CSI-RS的资源 分配给移动终端装置（10B），将部分资源报告为要静音的资源。

公开(公告)号：US20130294279A1

公开(公告)日：2013-11-07

申请号：US13978330

申请日：2011-12-09

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yoshihisa Kishiyama

IPC分类号： H04B7/04

CPC分类号： H04B7/0456 ,  H04B7/024 ,  H04L25/0226 ,  H04L25/03904 ,  H04L25/03955

摘要： Provided are a mobile terminal apparatus, a radio base station apparatus and a radio communication method capable of making the most of the effects of the MIMO technique and the CoMP technique, when employing both of the techniques. According to the radio communication method of the present invention, a mobile terminal apparatus estimates downlink channel states using respective reference signals included in downlink signals from plural cells; selects PMIs using a codebook based on the channel states; estimates a phase difference between the cells based on the selected PMIs or the channel states; and transmits information of the phase difference and the selected PMIs to radio base station apparatuses of the respective cells. A radio base station apparatus receives an uplink signal including a PMI and the information of the phase difference between the cells; multiplies a transmission signal by a precoding weight corresponding to the PMI; adjusts the phase difference between the cells with use of the information of the phase difference between the cells; and transmits the transmission signal to a radio base station apparatus of another cell by coordinated multi-point transmission.

摘要翻译： 提供了当采用这两种技术时能够充分发挥MIMO技术和CoMP技术的效果的移动终端装置，无线电基站装置和无线电通信方法。 根据本发明的无线通信方法，移动终端装置使用来自多个小区的下行链路信号中包含的各个参考信号来估计下行链路信道状态; 基于信道状态选择使用码本的PMI; 基于所选择的PMI或信道状态来估计小区之间的相位差; 并将相位差信息和所选择的PMI发送到各小区的无线基站装置。 无线基站装置接收包括PMI的上行链路信号和小区之间的相位差的信息; 将发送信号乘以对应于PMI的预编码权重; 使用细胞之间的相位差的信息来调整细胞之间的相位差; 并通过协调的多点发送将发送信号发送到另一小区的无线基站装置。