公开(公告)号：US08345562B2

公开(公告)日：2013-01-01

申请号：US11915847

申请日：2006-06-01

申请人： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu

发明人： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu

IPC分类号： H04J1/16

CPC分类号： H04L1/0061 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0697 ,  H04L1/0002 ,  H04L1/0021 ,  H04L1/203

摘要： A spatial multiplex number controlling method and others wherein streams can be separated for each of receivers and the transmission efficiency can be improved. In a receiving apparatus, a PER is calculated from a history of CRC test results per stream multiplex number. A reception quality and an offset corresponding to the calculated PER are fed back to a transmitting apparatus. The transmitting apparatus assigns, based on the fed-back reception quality and offset, the streams, thereby controlling the stream multiplex number.

摘要翻译： 空间多路复用数控制方法等，其中可以为每个接收机分离流，并且可以提高传输效率。 在接收装置中，根据每个流多路复用数的CRC测试结果的历史来计算PER。 将与计算出的PER对应的接收质量和偏移反馈到发送装置。 发送装置基于反馈接收质量和偏移分配流，从而控制流多路复用数。

公开(公告)号：US08320828B2

公开(公告)日：2012-11-27

申请号：US12523280

申请日：2008-01-25

申请人： Tomohiro Imai ,  Masayuki Hoshino ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu

发明人： Tomohiro Imai ,  Masayuki Hoshino ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu

IPC分类号： H04B7/15

CPC分类号： H04B7/0417 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/06 ,  H04L1/1835 ,  H04L2001/0093 ,  H04W72/085

摘要： In a multiuser MIMO system, entire system throughput achieved during retransmission is significantly enhanced. When an interference signal addressed to another user equipment (UE2) 200b has been demodulated successfully, a user equipment (UE1) 200a holds the demodulated data pertaining to the interference signal, and feeds back ACK information about the UE2 and CQI information achieved after elimination of the interference signal to a radio base station (BS) 100. When the UE2 performs retransmission after ended in a receiving failure and when the UE1 has demodulated the interference signal addressed to the UE2 successfully, the BS changes the distribution of communication resources in such a way that communication resources for the UE2 become larger than those for the UE1. At the time of retransmission, the UE1 eliminates the interference signal from a newly-received signal by use of previously-held demodulated data pertaining to the interference signal, and the UE2 combines data pertaining to the desired signal held during previous receiving failure with data pertaining to the retransmitted signal by means of soft combining.

摘要翻译： 在多用户MIMO系统中，在重传期间实现的整个系统吞吐量显着增强。 当寻址到另一用户设备（UE2）200b的干扰信号已被成功解调时，用户设备（UE1）200a保存与干扰信号相关的解调数据，并且反馈关于UE2的ACK信息和消除后的CQI信息 对无线基站（BS）100的干扰信号。当UE2在接收到故障结束后进行重发时，并且当UE1成功地解调了寻址到UE2的干扰信号时，BS改变这样的通信资源的分配 UE2的通信资源变得大于UE1的通信资源的方式。 在重发时，UE1通过使用与干扰信号有关的先前保持的解调数据来消除来自新接收信号的干扰信号，并且UE2将与先前接收失败期间保持的期望信号有关的数据与属于 通过软组合到重发信号。

公开(公告)号：US20120294229A1

公开(公告)日：2012-11-22

申请号：US13574980

申请日：2011-01-28

申请人： Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

发明人： Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

IPC分类号： H04B7/14

CPC分类号： H04W72/082 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0009 ,  H04W84/047

摘要： When a terminal (200) is capable of connecting to two relay devices that are adjacent to the terminal, from among a plurality of relay devices, a receiving unit (208) receives signals in a first period and a second period for communication among the plurality of relay stations, which are transmitted from the higher order device to the lower order device toward other terminal devices. An interference removal unit (209) obtains a signal transmitted toward the terminal (200) from the higher order relay device by employing the signals toward the other terminal devices that are received in the first period and the second period and removing a signal toward other terminal devices that is transmitted in a third period for communication between the plurality of relay devices and the terminal device from the lower order device from a signal that is received in the third period.

摘要翻译： 当终端（200）能够连接到与终端相邻的两个中继设备时，从多个中继设备中，接收单元（208）在第一周期和第二周期中接收多个中继设备之间的通信信号 的中继站，其从高阶设备向低阶设备发送到其他终端设备。 干扰去除单元（209）通过在第一周期和第二周期中接收到的其他终端设备的信号获得从高阶中继设备向终端（200）发送的信号，并且去除朝向其他终端的信号 在第三时段中从在第三时段接收到的信号中在多个中继设备和来自低级设备的终端设备之间进行通信的设备。

公开(公告)号：US08189649B2

公开(公告)日：2012-05-29

申请号：US12687453

申请日：2010-01-14

申请人： Yasuaki Yuda ,  Takaaki Kishigami ,  Takashi Fukagawa ,  Yoichi Nakagawa ,  Shinichiro Takabayashi

发明人： Yasuaki Yuda ,  Takaaki Kishigami ,  Takashi Fukagawa ,  Yoichi Nakagawa ,  Shinichiro Takabayashi

IPC分类号： H04B1/38

CPC分类号： H04B7/0619 ,  H04B7/0617 ,  H04B7/086 ,  H04B17/11 ,  H04B17/21

摘要： In a wireless communication apparatus adopting a time division duplex system for executing transmission and reception using a plurality of antennas, deviation of amplitude and phase occurring between transmission and reception circuits is detected and corrected using a communication signal. Channel estimation means 105 detects channel information based on reception output of reception circuits 104-1 to 104-N provided in a one-to-one correspondence with a plurality of antennas 101-1 to 101-N. Correction value detection means 110 finds a correction value for correcting deviation occurring between each of transmission circuits 103-1 to 103-N and each of the reception circuits 104-1 to 104-N based on the channel information. A wireless communication apparatus 100 transmits an already known signal (training signal) to a base station with which the wireless communication apparatus conducts communications. The base station executes channel estimation based on the already known signal and generates and transmits a correction signal (probe signal). The correction value detection means 110 of the wireless communication apparatus 100 detects the correction value using the correction signal (probe signal).

摘要翻译： 在采用使用多个天线执行发送和接收的时分双工系统的无线通信装置中，使用通信信号来检测和校正发送和接收电路之间发生的振幅和相位的偏差。 信道估计装置105基于与多个天线101-1至101-N一一对应地提供的接收电路104-1至104-N的接收输出来检测信道信息。 修正值检测单元110基于通道信息，求出用于校正发送电路103-1〜103-N和各接收电路104-1〜104-N的偏差的校正值。 无线通信装置100向无线通信装置进行通信的基站发送已知的信号（训练信号）。 基站根据已知的信号进行信道估计，生成并发送校正信号（探测信号）。 无线通信装置100的校正值检测装置110使用校正信号（探测信号）来检测校正值。

公开(公告)号：US08086927B2

公开(公告)日：2011-12-27

申请号：US11909415

申请日：2006-03-27

申请人： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

发明人： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

IPC分类号： G08C25/02 ,  G06F11/10

CPC分类号： H04L1/0009 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1812

摘要： A MIMO transmitting apparatus that achieves a flexible control in accordance with variation of a propagation environment to reduce the number of retransmissions is disclosed. An intra-code-word interleaver performs an interleave process on bits included in symbols to be simultaneously transmitted from a plurality of transmitting antennas. When performing the intra-code-word interleave process, the intra-code-word interleaver performs the interleave process in accordance with an interleave pattern notified from an interleave pattern table. A counter counts a number of retransmission requests, and outputs the number of retransmission requests to the interleave pattern table. The interleave pattern table stores interleave patterns to be used for the intra-code-word interleave process for the respective numbers of retransmission requests, and notifies the intra-code-word interleaver of an interleave pattern in accordance with the number of retransmission requests.

摘要翻译： 公开了一种根据传播环境的变化实现灵活控制以减少重发次数的MIMO发送装置。 码内字交错器对从多个发送天线同时发送的符号中包含的比特执行交织处理。 当执行码内字交错处理时，帧内码交织器根据从交织模式表通知的交织模式进行交织处理。 计数器对多个重传请求进行计数，并将重传请求的次数输出到交织模式表。 交织模式表存储用于各个重发请求次数的码内字交织处理的交织模式，并根据重发请求次数通知码内字交织器交织模式。

公开(公告)号：US08081702B2

公开(公告)日：2011-12-20

申请号：US12280677

申请日：2007-02-28

申请人： Masayuki Hoshino ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu ,  Ryohei Kimura

发明人： Masayuki Hoshino ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu ,  Ryohei Kimura

IPC分类号： H04B7/02

CPC分类号： H04B7/0626 ,  H04B7/0417 ,  H04B7/0434 ,  H04B7/063 ,  H04B7/0689

摘要： It is possible to prevent lowering of a throughput of a radio communication system even when propagation path environments of an uplink line and downlink line are asymmetric. A maximum proper value calculation unit (115) calculates a maximum proper value from a channel matrix. A maximum proper value comparison unit (116) compares the maximum proper value with a maximum proper value of the downlink line reported separately from a base station. According to the comparison result obtained by the maximum proper value comparison unit (116), a proper mode initiative instruction unit (117) decides to pass the proper mode initiative to a communication partner or to the local device. When the initiative is to be passed to the local device, this fact is reported to a proper bam correction unit (118). When the proper beam correction unit (118) gets the proper mode initiative, the proper beam correction unit (118) corrects the correlation matrix by using the proper values of both of the downlink line and the uplink line and instructs a directivity forming unit (103) to form a proper beam according to the correlation matrix after the correction.

摘要翻译： 即使上行链路和下行链路的传播路径环境不对称，也可以防止无线通信系统的吞吐量的降低。 最大适当值计算单元（115）从信道矩阵计算最大适当值。 最大适当值比较单元（116）将最大适当值与从基站分开报告的下行线路的最大适当值进行比较。 根据由最大适当值比较单元（116）获得的比较结果，正确的模式主动指示单元（117）决定将适当的模式主动通过通信对方或本地设备。 当该举措传递给本地设备时，这一事实报告给适当的巴姆纠正单位（118）。 当正确的光束校正单元（118）获得适当的模式主动时，适当的光束校正单元（118）通过使用下行链路线路和上行线路两者的适当值来校正相关矩阵，并且指示方向性形成单元（103 ）根据校正后的相关矩阵形成适当的波束。

公开(公告)号：US07920889B2

公开(公告)日：2011-04-05

申请号：US11915724

申请日：2006-05-30

申请人： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

发明人： Masayuki Hoshino ,  Ryohei Kimura ,  Yasuaki Yuda ,  Tomohiro Imai ,  Kenichi Miyoshi

IPC分类号： H04B7/00 ,  H04B1/04

CPC分类号： H04W52/247 ,  H04W52/262

摘要： A transmitting apparatus, a receiving apparatus and a transmission power control method wherein even in a case of performing a transmission power control of multi-valued modulated symbols, the degradation of reception characteristic and that of network usage efficiency can be avoided. A power control instructing part (204) adjusts, based on an encoding rate and a modulation scheme in a case of applying a power control value, which maximizes the MIMO channel capacity, to each stream, the power control value of a stream, which is the most likely to be affected by a power estimation error, into a reference value, and then applies the adjustment value used for that adjustment to the other streams, that is, the streams that are not likely to be affected by the power estimation error. A power control part (205) performs a transmission power control in accordance with the power control value as adjusted by the power control instructing part (204).

摘要翻译： 一种发送装置，接收装置和发送功率控制方法，其中即使在执行多值调制符号的发送功率控制的情况下，也可以避免接收特性的劣化和网络使用效率的劣化。 功率控制指示部（204）根据编码率和调制方式，对每个流施加使MIMO信道容量最大化的功率控制值，将流的功率控制值，即 最可能受功率估计误差影响的参考值，然后将用于该调整的调整值应用于其他流，即不太可能受功率估计误差影响的流。 功率控制部（205）根据由功率控制指示部（204）调节的功率控制值进行发送功率控制。

公开(公告)号：US20100229065A1

公开(公告)日：2010-09-09

申请号：US12739123

申请日：2008-10-24

申请人： Yasuaki Yuda ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu

发明人： Yasuaki Yuda ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu

IPC分类号： H04L1/14 ,  G06F11/16

CPC分类号： H04B7/0417 ,  H04B7/0623 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/1671 ,  H04L1/1812

摘要： It is possible to provide a radio transmission device, a radio reception device, and a radio communication method which can suppress increase of the feedback overhead and improve the throughput characteristic. In ST 304, an UE performs an error judgment for each of CW. In ST 305, a comparison is made on quality between streams in the CW containing the error. ST 306 transmits Nack and quality difference information to a BS. In ST 307, it is reported to the BS that an error has occurred in the CW in the preceding transmission and that one of the streams is a high-quality stream. Moreover, ST 307 selects data which has been transmitted as CW retransmission data in a low-quality stream in the preceding transmission and decides to transmit the selected data from two streams. ST 308 generates a retransmission CW. ST 309 arranges the retransmission CW in the two streams and transmits the retransmission CW to the UE. ST 310 reproduces the CW which has been retransmitted from the BS and performs a symbol synthesis or a bit synthesis so as to reproduce the data which has been transmitted in a low-quality stream in the preceding transmission.

摘要翻译： 可以提供能够抑制反馈开销的增加和提高吞吐量特性的无线发送装置，无线接收装置和无线通信方法。 在ST304中，UE对CW中的每一个执行错误判断。 在ST305中，对包含误差的CW中的流之间的质量进行比较。 ST 306向BS发送Nack和质量差异信息。 在ST 307中，向BS报告在前面的传输中CW发生了错误，并且该流中的一个是高质量流。 此外，ST 307选择在先前传输中的低质量流中作为CW重传数据发送的数据，并决定从两个流中发送所选择的数据。 ST308生成重传CW。 ST 309在两个流中排列重传CW，并向UE发送重发CW。 ST 310再现从BS重发的CW，并执行符号合成或比特合成，以再现在先前传输中以低质量流传输的数据。

公开(公告)号：US20100075703A1

公开(公告)日：2010-03-25

申请号：US12523280

申请日：2008-01-25

申请人： Tomohiro Imai ,  Masayuki Hoshino ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu

发明人： Tomohiro Imai ,  Masayuki Hoshino ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu

IPC分类号： H04B15/00 ,  H04B1/04 ,  H04L1/08 ,  G06F11/14 ,  H04B1/10

CPC分类号： H04B7/0417 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/06 ,  H04L1/1835 ,  H04L2001/0093 ,  H04W72/085

摘要： In a multiuser MIMO system, entire system throughput achieved during retransmission is significantly enhanced. When an interference signal addressed to another user equipment (UE2) 200b has been demodulated successfully, a user equipment (UE1) 200a holds the demodulated data pertaining to the interference signal, and feeds back ACK information about the UE2 and CQI information achieved after elimination of the interference signal to a radio base station (BS) 100. When the UE2 performs retransmission after ended in a receiving failure and when the UE1 has demodulated the interference signal addressed to the UE2 successfully, the BS changes the distribution of communication resources in such a way that communication resources for the UE2 become larger than those for the UE1. At the time of retransmission, the UE1 eliminates the interference signal from a newly-received signal by use of previously-held demodulated data pertaining to the interference signal, and the UE2 combines data pertaining to the desired signal held during previous receiving failure with data pertaining to the retransmitted signal by means of soft combining.

摘要翻译： 在多用户MIMO系统中，在重传期间实现的整个系统吞吐量显着增强。 当寻址到另一用户设备（UE2）200b的干扰信号已被成功解调时，用户设备（UE1）200a保存与干扰信号相关的解调数据，并且反馈关于UE2的ACK信息和消除后的CQI信息 对无线基站（BS）100的干扰信号。当UE2在接收到故障结束后进行重发时，并且当UE1成功地解调了寻址到UE2的干扰信号时，BS改变这样的通信资源的分配 UE2的通信资源变得大于UE1的通信资源的方式。 在重发时，UE1通过使用与干扰信号有关的先前保持的解调数据来消除来自新接收信号的干扰信号，并且UE2将与先前接收失败期间保持的期望信号有关的数据与属于 通过软组合到重发信号。

公开(公告)号：US20090305690A1

公开(公告)日：2009-12-10

申请号：US12281140

申请日：2007-02-28

申请人： Yasuaki Yuda ,  Masayuki Hoshino ,  Tomohiro Imai ,  Ryohei Kimura ,  Daichi Imamura

发明人： Yasuaki Yuda ,  Masayuki Hoshino ,  Tomohiro Imai ,  Ryohei Kimura ,  Daichi Imamura

IPC分类号： H04W28/16

CPC分类号： H04L1/08 ,  H04B7/0417 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026

摘要： Disclosed is a radio transmission device capable of improving a transmission stream error resistance and preventing lowering of a throughput of a communication system. In this device, according to the feedback information from the radio reception device, a repetition control unit (110) decides ranking of each stream, sets a higher repletion rate for a higher stream. This is instructed to repetition units (103-1 to 103-N). According to the repletion rate decided by a repletion control unit (110), the repletion units (103-1 to 103-N) subjects the stream outputted from modulation units (102-1 to 102-N) to a repetition process, and outputs it to transmission RF units (104-1 to 104-N).

摘要翻译： 公开了能够提高传输流误差阻抗并防止通信系统的吞吐量降低的无线电传输装置。 在该装置中，根据来自无线接收装置的反馈信息，重复控制部（110）对每个流的排序进行判定，对较高的流设定较高的补充率。 这被指示给重复单元（103-1至103-N）。 根据由补充控制单元（110）决定的补偿率，补充单元（103-1至103-N）对从调制单元（102-1至102-N）输出的流进行重复处理，并输出 它发送到RF单元（104-1至104-N）。