公开(公告)号：US08711682B2

公开(公告)日：2014-04-29

申请号：US13303420

申请日：2011-11-23

申请人： Petra Weitkemper ,  Hidekazu Taoka

发明人： Petra Weitkemper ,  Hidekazu Taoka

IPC分类号： H04L12/26

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, a relay station and a receiver in case of a retransmission of information from the relay station to the receiver 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： 描述了在从中继站向接收机重传信息的情况下在包括发送方，中继站和接收方的无线通信网络中的资源分配的方法，其中，基于所述中继站确定重传所需的资源 中继通道和继电器功能。

公开(公告)号：US20130279364A1

公开(公告)日：2013-10-24

申请号：US13992825

申请日：2011-12-09

申请人： Satoshi Nagata ,  Hidekazu Taoka ,  Katsutoshi Kusume ,  Petra Weitkemper

发明人： Satoshi Nagata ,  Hidekazu Taoka ,  Katsutoshi Kusume ,  Petra Weitkemper

IPC分类号： H04B17/02

CPC分类号： H04B17/40 ,  H04B7/155 ,  H04W24/10 ,  H04W72/04 ,  H04W84/047

摘要： Provided are a radio relay station apparatus, a radio base station apparatus and a radio communication method capable of improving user throughput and increasing the capacity in type II relay. The radio communication method of the present invention is characterized by, in a radio relay station apparatus, measuring channel quality of relay links with use of sounding reference signals from mobile terminal apparatuses; and transmitting feedback information including measurement results of channel quality of the relay links to a radio base station apparatus via a backhaul link; in the radio base station apparatus, measuring channel quality of direct links with use of sounding reference signals from the mobile terminal apparatuses, subtracting a correction value from the measurement results of the radio relay station apparatus; and allocating radio resources to a mobile terminal apparatus based on measurement results of the channel quality of the direct links and subtraction results.

摘要翻译： 提供能够提高用户吞吐量并增加II型继电器的容量的无线电中继站装置，无线电基站装置和无线电通信方法。 本发明的无线通信方法的特征在于，在无线中继站装置中，使用来自移动终端装置的探测参考信号测量中继链路的信道质量; 以及经由回程链路向所述无线基站装置发送包括所述中继链路的信道质量的测量结果的反馈信息; 在无线基站装置中，使用来自移动终端装置的探测参考信号测量直接链路的信道质量，从无线中继站装置的测量结果中减去校正值; 并且基于直接链路的信道质量和减法结果的测量结果向移动终端装置分配无线电资源。

公开(公告)号：US20130195035A1

公开(公告)日：2013-08-01

申请号：US13643566

申请日：2011-04-28

申请人： Hidekazu Taoka ,  Yuichi Kakishima ,  Katsutoshi Kusume ,  Guido Dietl

发明人： Hidekazu Taoka ,  Yuichi Kakishima ,  Katsutoshi Kusume ,  Guido Dietl

IPC分类号： H04W72/04

CPC分类号： H04W72/0466 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0482 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/065 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/03898 ,  H04L25/03942 ,  H04L25/03949

摘要： Disclosed is a mobile terminal device and a radio base station apparatus capable of effectively feeding back PMIs by selecting a precoder using double codebooks W1 and W2 in downlink MIMO transmission. The mobile terminal device includes a feedback control signal generating section that individually performs channel coding for the first PMI selected from the first codebook for wideband/long-period and the second PMI selected from the second codebook for subband/short-period and a transmit section that transmits the individually channel-coded first and second PMIs to the radio base station apparatus on a physical uplink shared channel (PUSCH).

摘要翻译： 公开了一种移动终端装置和无线基站装置，其能够通过在下行链路MIMO传输中使用双码本W1和W2选择预编码器来有效地反馈PMI。 移动终端装置包括：反馈控制信号生成部，对从宽带/长周期的第一码本中选择出的第一PMI进行信道编码，对从子带/短周期的第二码本中选择的第二PMI，以及发送部 其在物理上行链路共享信道（PUSCH）上将单独的信道编码的第一和第二PMI发送到无线电基站装置。

公开(公告)号：US20130034187A1

公开(公告)日：2013-02-07

申请号：US13579444

申请日：2011-02-09

申请人： Hidekazu Taoka ,  Kenichi Higuchi

发明人： Hidekazu Taoka ,  Kenichi Higuchi

IPC分类号： H04L25/49

CPC分类号： H04B7/0626 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0697

摘要： To reduce interference among mobile station apparatuses even when the CSI is not transmitted from all mobile station apparatuses as feedback in an environment where Joint Transmission is performed, a channel matrix is generated which is comprised of the CSI from a plurality of mobile station apparatuses (UEs) undergoing spatial multiplexing for each of coordinated cells, and based on the channel matrix, precoding weights are generated successively starting from a cell having the highest number of mobile station apparatuses (UEs) that transmit the CSI as feedback. When data transmission is targeted for a mobile station apparatus (UE#1) that transmits the CSI as feedback as well as a weight generation target cell that is a target for generation of precoding weights, precoding weights are generated so as not to suppress interference on a mobile station apparatus (UE#2) that transmits the CSI as feedback as well as the weight generation target cell, while suppressing interference on mobile station apparatuses (UE#3, UE#4) that do not transmit the CSI as feedback except the weight generation target cell.

摘要翻译： 为了减少移动台装置之间的干扰，即使作为在执行联合发送的环境中的反馈而从所有移动台装置发送CSI，也生成包括来自多个移动台装置（UE）的CSI的信道矩阵 ）对于每个协作小区进行空间复用，并且基于信道矩阵，从具有发送CSI作为反馈的具有最多数量的移动站装置（UE）的小区连续生成预编码权重。 当将发送CSI作为反馈的移动站装置（UE＃1）和作为生成预编码权重的目标的权重生成目标小区的数据发送目标时，生成预编码权重，以便不抑制对 在不发送CSI的移动台装置（UE＃3，UE＃4）的干扰的情况下，作为反馈而发送CSI的移动站装置（UE＃2）以及加权生成目标小区，除了 体重产生靶细胞。

公开(公告)号：US20130034066A1

公开(公告)日：2013-02-07

申请号：US13578871

申请日：2011-02-09

申请人： Yuichi Kakishima ,  Hidekazu Taoka ,  Teruo Kawamura ,  Yoshihisa Kishiyama

发明人： Yuichi Kakishima ,  Hidekazu Taoka ,  Teruo Kawamura ,  Yoshihisa Kishiyama

IPC分类号： H04B1/707 ,  H04W72/04

CPC分类号： H04W16/28 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2647 ,  H04W52/028 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/1264

摘要： To provide a radio base station apparatus, mobile terminal device and wireless communication method for enabling the SRS to be used efficiently in an LTE-A system, a wireless communication method of the invention is characterized in that a radio base station apparatus performs OFDM modulation on a transmission signal including transmission information on sounding reference signals for each transmission antenna, and transmits the OFDM-modulated transmission signal, and that a mobile terminal device receives the signal including the transmission information, controls a transmission aspect of the sounding reference signals for each transmission antenna based on the transmission information, and transmits the sounding reference signals in the transmission aspect for each transmission antenna.

摘要翻译： 为了提供一种无线基站装置，能够在LTE-A系统中有效使用SRS的移动终端装置和无线通信方法，本发明的无线通信方法的特征在于，无线基站装置对 发送信号，包括各发送天线的探测参考信号的发送信息，发送OFDM调制后的发送信号，移动终端装置接收包含发送信息的信号，控制各发送的发声参考信号的发送方面 基于发送信息的天线，并且在每个发送天线的发送方面发送探测参考信号。

公开(公告)号：US08249613B2

公开(公告)日：2012-08-21

申请号：US12187087

申请日：2008-08-06

申请人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

发明人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

IPC分类号： H04W72/00

CPC分类号： H04L25/03343 ,  H04B7/0417 ,  H04B7/0671 ,  H04L5/0023 ,  H04L2025/03426

摘要： A method of data processing includes the steps of: dividing user terminals into groups based on channel attributes and service requirements of the user terminals and setting a precoding code word and a cyclic delay for each of the groups; and determining which group a user terminal corresponding to the data to be processed belongs to and processing the data to be processed by the Cyclic Delay Diversity (CDD) precoding based on the precoding code word and the cyclic delay of the group. A data processing apparatus includes a grouping module and a CDD preceding module. By the method and apparatus above, the signal quality in the MIMO system can be improved.

摘要翻译： 数据处理方法包括以下步骤：根据用户终端的信道属性和业务需求将用户终端划分成组，并为每个组设置预编码码字和循环延迟; 并且确定与要处理的数据相对应的用户终端属于哪个组，并且基于预编码码字和该组的循环延迟来处理由循环延迟分集（CDD）预编码处理的数据。 数据处理装置包括分组模块和CDD在前模块。 通过上述方法和装置，可以提高MIMO系统中的信号质量。

公开(公告)号：US20110182337A1

公开(公告)日：2011-07-28

申请号：US12994214

申请日：2009-05-20

申请人： Hidekazu Taoka ,  Tetsushi Abe

发明人： Hidekazu Taoka ,  Tetsushi Abe

IPC分类号： H04B17/00

CPC分类号： H04L1/20 ,  H04J11/004 ,  H04J11/0043 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0036 ,  H04W24/00 ,  H04W48/18 ,  H04W72/02

摘要： The communication apparatus includes: a processing unit 52 configured to determine a data modulation scheme for each stream based on first signal quality q1 for each stream determined by the MMSE method; a processing unit 54 configured to determine second signal quality q2 corresponding to the first signal quality q1; a processing unit configured to determine third signal quality q3(1) of a stream by adding first signal quality q1(1) of the stream and a correction value Δq(1) derived from second signal quality q2(2) of equal to or more than 1 stream other than the stream; and a processing unit 58 configured to determine channel coding rate Rk corresponding to third signal quality q3(1) for each stream. The determined data modulation scheme and channel coding scheme are used for transmission of a following stream.

摘要翻译： 通信装置包括：处理单元52，被配置为基于由MMSE方法确定的每个流的第一信号质量q1确定每个流的数据调制方案; 处理单元54，被配置为确定与第一信号质量q1对应的第二信号质量q2; 处理单元，被配置为通过添加流的第一信号质量q1（1）和从第二信号质量q2（2）导出的校正值Dgr; q（1）来确定流的第三信号质量q3（1） 或多于1个流以外的流; 以及处理单元58，被配置为确定对于每个流对应于第三信号质量q3（1）的信道编码率R k。 确定的数据调制方案和信道编码方案用于传输后续流。

公开(公告)号：US20100189191A1

公开(公告)日：2010-07-29

申请号：US12664830

申请日：2008-06-17

申请人： Hidekazu Taoka ,  Tetsushi Abe

发明人： Hidekazu Taoka ,  Tetsushi Abe

IPC分类号： H04L27/00

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中生成对应于预定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 以及发送单元，被配置为将来自所述预编码单元的输出信号转换为与所述发送天线的数量对应的多个信号，并且从所述发送天线发送所述转换的信号。 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。

公开(公告)号：US09306679B2

公开(公告)日：2016-04-05

申请号：US13992825

申请日：2011-12-09

申请人： Satoshi Nagata ,  Hidekazu Taoka ,  Katsutoshi Kusume ,  Petra Weitkemper

发明人： Satoshi Nagata ,  Hidekazu Taoka ,  Katsutoshi Kusume ,  Petra Weitkemper

IPC分类号： H04W84/04 ,  H04B17/02 ,  H04B7/155 ,  H04W24/10 ,  H04B17/40 ,  H04W72/04

CPC分类号： H04B17/40 ,  H04B7/155 ,  H04W24/10 ,  H04W72/04 ,  H04W84/047

摘要： In a radio relay station, the channel quality of relay links is measured with the use of sounding reference signals from mobile terminals. Feedback information including the measurement results of the channel quality of the relay links is transmitted to a radio base station via a backhaul link. In the radio base station, the channel quality of the direct links is measured with the use of sounding reference signals from the mobile terminals. A correction value from the measurement results of the channel quality from the radio relay station is subtracted. Radio resources are allocated to a mobile terminal based on the measurement results of the channel quality of the direct links and the subtraction results.

摘要翻译： 在无线电中继站中，使用来自移动终端的探测参考信号测量中继链路的信道质量。 包括中继链路的信道质量的测量结果的反馈信息通过回程链路被发送到无线基站。 在无线基站中，使用来自移动终端的探测参考信号来测量直接链路的信道质量。 来自无线电中继站的信道质量的测量结果的校正值被减去。 基于直接链路的信道质量和减法结果的测量结果，将无线资源分配给移动终端。

公开(公告)号：US09136922B2

公开(公告)日：2015-09-15

申请号：US13877573

申请日：2011-10-03

申请人： Satoshi Nagata ,  Yuichi Kakishima ,  Hidekazu Taoka ,  Katsutoshi Kusume

发明人： Satoshi Nagata ,  Yuichi Kakishima ,  Hidekazu Taoka ,  Katsutoshi Kusume

IPC分类号： H04B17/00 ,  H04W60/00 ,  H04B7/04 ,  H04L1/00 ,  H04L25/03 ,  H04B7/06 ,  H04L25/02 ,  H04W16/28 ,  H04W24/10

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0636 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0031 ,  H04L25/0204 ,  H04L25/03343 ,  H04L25/03898 ,  H04W16/28 ,  H04W24/10

摘要： The present invention makes it possible to feed back PMIs that are required to generate precoding weights, while securing improvement of throughput performance, in downlink MIMO transmission using a plurality of transmitting antennas. With the present invention, in a mode to include a PTI (Precoder Type Indicator) in a PUCCH and feedback the PTI to a radio base station apparatus for downlink MIMO transmission using a plurality of transmitting antennas, the transmission cycle of feedback information corresponding to report 2 and report 3 when the value of the PTI is 0 are made different from the transmission cycle of feedback information corresponding to report 2 and report 3 when PTI=1 and the former feedback information and the latter feedback information are multiplexed, and the multiplexed signal is transmitted to the radio base station apparatus by the PUCCH.

摘要翻译： 本发明使得能够在使用多个发送天线的下行MIMO传输中反馈产生预编码权重所需的PMI，同时确保吞吐量性能的改善。 通过本发明，在PUCCH中包含PTI（预编码器类型指示符）的模式中，使用多个发送天线将PTI反馈给无线基站装置进行下行MIMO发送，对应于报告的反馈信息的发送周期 2和报告3，当PTI的值为0时，与PTI = 1对应的反馈信息的传输周期不同，并且前一个反馈信息和后面的反馈信息被复用，并且复用信号 通过PUCCH向无线基站装置发送。