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公开(公告)号：US20050002358A1
公开(公告)日：2005-01-06
申请号：US10902580
申请日：2004-07-30
CPC分类号： H04L1/0015 , H04L1/0003 , H04L1/0025
摘要： PL demodulation section 203 demodulates pilot signals of a received signal. SIR detection section 205 detects the reception quality of the demodulated pilot signals. fd detection section 206 detects a Doppler frequency using the demodulated pilot signals. Requested modulation method deciding section 207 decides a modulation method to be requested to the base station using the reception quality of pilot signals and the detected Doppler frequency. Command generation section 208 generates a command corresponding to the decided modulation method. Adaptive demodulation section 204 performs demodulation processing on the received signal using the demodulation method corresponding to the modulation method decided by requested modulation method deciding section 207. This makes it possible to maintain good reception quality even in a fading environment.
摘要翻译： PL解调单元203对接收信号的导频信号进行解调。 SIR检测部件205检测解调的导频信号的接收质量。 fd检测部206使用解调的导频信号来检测多普勒频率。 请求调制方式决定部207使用导频信号的接收质量和检测到的多普勒频率来决定向基站请求的调制方式。 命令生成部208生成与决定的调制方式对应的命令。 自适应解调部204使用与由请求调制方式决定部207决定的调制方式相对应的解调方式，对接收信号进行解调处理。即使在衰落环境中也能够保持良好的接收质量。
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公开(公告)号：US06477213B1
公开(公告)日：2002-11-05
申请号：US09317614
申请日：1999-05-25
IPC分类号： H04B710
CPC分类号： H04B7/0874 , H04B7/0848
摘要： Antenna received signals 101-1 to 101-n are input to weighting coefficient calculation section 103. Weighting coefficient calculation section 103 determines weighting coefficients so as to eliminate interference using antenna received signals 101-1 to 101-n and known signal and combines them into weighted/combined signal 107. Envelope variation detection section 116 detects variations in the envelope of the weighted/combined signal. Interference mixing time detection section 108 detects the interference mixing time from the output of envelope variation detection section 116. Envelope variation detection sections 117 to 119 detect envelope variations of the received signals. Combination system control section 113 switches switch section 114 so that the received signal with the least envelope variation may be output at the interference mixing time.
摘要翻译： 天线接收信号101-1至101-n被输入到加权系数计算部分103.加权系数计算部分103确定加权系数以消除使用天线接收信号101-1至101-n的干扰和已知信号，并将它们组合成 加权/组合信号107.包络变化检测部分116检测加权/合成信号的包络线的变化。 干扰混合时间检测部分108从包络变化检测部分116的输出检测干扰混合时间。包络变化检测部分117至119检测接收信号的包络变化。 组合系统控制部分113切换开关部分114，使得可以在干扰混合时间输出具有最小包络线变化的接收信号。
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43.发明授权公开(公告)号：US08588321B2
公开(公告)日：2013-11-19
申请号：US12809701
申请日：2008-10-23
IPC分类号： H04K1/10
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0426 , H04B7/0632 , H04L1/0025 , H04L1/0026 , H04L1/0036 , H04W72/08
摘要： When power scaling is applied to multi-user MIMO, a reduction in transmission rate is suppressed and transmission efficiency is improved. When signals are transmitted through spatial multiplexing from a wireless base station 11 to a plurality of pieces of user equipment 12 and 13, notification of a transmission parameter (MCS) of the distant user equipment (UE-B) 13 is provided as control information to the adjacent user equipment (UE-A) 12. The user equipment 12 calculates, based on the received control information, a reception quality (CQI) after cancellation of a signal serving as an interference signal and destined for the other user equipment 13, and feeds back the calculated result to the wireless base station 11. Based on this feedback, the wireless base station 11 sets a transmission parameter (MCS) of each piece of the user equipment 12 and 13 using the CQI after the cancellation, and transmits signals intended for respective users through spatial multiplexing after performing power distribution between the users by power scaling.
摘要翻译： 当对多用户MIMO进行功率缩放时，传输速率的降低被抑制并且传输效率提高。 当通过空中复用将信号从无线基站11发送到多个用户设备12和13时，提供远程用户设备（UE-B）13的传输参数（MCS）的通知作为控制信息 相邻用户设备（UE-A）12。用户设备12基于接收到的控制信息计算在用作干扰信号并发往另一用户设备13的信号的消除之后的接收质量（CQI），以及 将计算结果反馈给无线基站11.基于该反馈，无线基站11在消除之后使用CQI来设置用户设备12和13的每一段的传输参数（MCS），并发送预期的信号 通过功率缩放在用户进行功率分配之后通过空间复用对各个用户进行。
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44.发明授权Transmitting apparatus, receiving apparatus and multiplex number controlling method 有权发送装置，接收装置和多路复用数控制方法公开(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。
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45.发明申请WIRELESS COMMUNICATION BASE STATION DEVICE AND DIVISION NUMBER DETERMINATION METHOD 有权无线通信基站设备和部门号码确定方法公开(公告)号：US20120026948A1
公开(公告)日：2012-02-02
申请号：US13124811
申请日：2009-10-15
申请人： Yoshihiko Ogawa , Selgo Nakao , Daichl Imamura , Akihiko Nishio , Masayuki Hoshino , Katsuhiko Hiramatsu , Kenichi Miyoshi , Yasuaki Yuda , Megumi Ichikawa , Sadaki Futagi , Takashi Iwai
发明人： Yoshihiko Ogawa , Selgo Nakao , Daichl Imamura , Akihiko Nishio , Masayuki Hoshino , Katsuhiko Hiramatsu , Kenichi Miyoshi , Yasuaki Yuda , Megumi Ichikawa , Sadaki Futagi , Takashi Iwai
IPC分类号： H04W72/04
CPC分类号： H04W72/0453 , H04L1/0042 , H04L1/0061 , H04L5/0023 , H04L5/0039 , H04L5/0048 , H04L25/0226 , H04L25/03159 , H04L27/2602
摘要： Disclosed are a wireless communication base station device and a division number determination method that improves the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit (117) determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit (117) increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit (118) schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit (117).
摘要翻译： 公开了一种无线通信基站装置和分割数确定方法，无论来自无线通信终端装置的发送信号的频域中的分割数如何，都能够在保持信道估计精度的同时提高频率分集效应。 确定单元（117）确定来自无线通信终端设备的发送信号的频域中的分割数。 这里，随着发送信号中包含的导频块的数量的增加，决定单元117增加来自无线通信终端装置的发送信号的频域的分割数。 此外，调度单元（118）根据由确定单元（117）确定的分割数来调度分配的发送信号的频率资源。
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46.发明授权Radio communication system, radio communication device, and channel correlation matrix decision method 有权无线电通信系统，无线电通信设备和信道相关矩阵决策方法公开(公告)号：US08081702B2
公开(公告)日：2011-12-20
申请号：US12280677
申请日：2007-02-28
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。
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公开(公告)号：US20110096877A1
公开(公告)日：2011-04-28
申请号：US12920030
申请日：2009-03-05
IPC分类号： H04L1/02
CPC分类号： H04L1/003 , H04L1/0026 , H04L1/0029 , H04L1/06 , H04L25/0204 , H04L25/0224 , H04L25/0248 , H04W72/0413 , H04W72/085
摘要： Disclosed is a wireless receiver and feedback method for reducing the amount of CQI feedback in a MIMO channel. A channel estimation unit (103) uses a received pilot signal to estimate the channel matrix for each RB between respective transceiver antennas, and then performs eigenvalue decomposition of the estimated channel matrix to find eigenvalues and eigenvectors. A feedback data generator (104) is provided with a feedback bit table that correlates the number of quantized bits for the averaged CQI to be transmitted for each eigenvalue and the number of quantized bits for the CQI in each RB, and then reduces the number of quantized bits for the averaged CQI Xk commensurate with the magnitude of the eigenvalue number k. The feedback data generator (104) averages eigenvalues found by the channel estimator (103) for each RB, converts the averaged eigenvalue to a CQI for each eigenvalue number, and generates feedback data from the CQI for each eigenvalue with the number of quantized bits according to the feedback table.
摘要翻译： 公开了一种用于减少MIMO信道中的CQI反馈量的无线接收机和反馈方法。 信道估计单元（103）使用接收到的导频信号来估计各个收发天线之间的每个RB的信道矩阵，然后执行所估计的信道矩阵的特征值分解以找到特征值和特征向量。 反馈数据生成器（104）具有将每个特征值要发送的平均CQI的量化比特数与每个RB中的CQI的量化比特数相关联的反馈比特表，然后减少 用于与特征值k的大小相称的平均CQI Xk的量化比特。 反馈数据生成器（104）对于每个RB对由信道估计器（103）找到的特征值进行平均，将每个特征值数的平均特征值转换为CQI，并且针对每个具有量化比特数的特征值的CQI生成反馈数据， 到反馈表。
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公开(公告)号：US07573838B2
公开(公告)日：2009-08-11
申请号：US11049728
申请日：2005-02-04
CPC分类号： H04W28/22 , H04W24/00 , H04W52/0229 , H04W52/0245 , H04W52/0258 , H04W52/24 , H04W52/26 , H04W72/12 , H04W72/1284 , Y02D70/00
摘要： A mobile communication system which is capable of, when carrying out mobile communication using a shared channel, increasing in efficiency of transmission timing of the data transmission rate request value to prevent wasteful power consumption and hence reduce power consumption. The mobile station apparatus of the mobile communication system measures CIR of the received signal from the base station apparatus at the CIR measuring section, and decides the data transmission rate request value corresponding to the measured CIR value at the rate request value deciding section. Also, it detects an error of the received signal at the CRC section, and, when no error is found, calculates a difference between the average data transmission rate from the base station apparatus and the data transmission request value at the rate request value transmission controlling section. Then, it transmits the data transmission rate request value to the base station apparatus only when the obtained difference is larger than a threshold value.
摘要翻译： 能够在使用共享信道进行移动通信时能够提高数据传输速率请求值的发送定时的效率的移动通信系统，以防止浪费的功率消耗并因此降低功耗。 移动通信系统的移动站装置在CIR测量部分测量来自基站装置的接收信号的CIR，并且确定与速率请求值确定部分所测量的CIR值对应的数据传输速率请求值。 此外，它检测在CRC部分的接收信号的错误，并且当没有发现错误时，计算来自基站装置的平均数据传输速率与速率请求值传输控制的数据传输请求值之间的差异 部分。 然后，只有当获得的差值大于阈值时，才向基站装置发送数据传输速率请求值。
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公开(公告)号：US07266096B2
公开(公告)日：2007-09-04
申请号：US10169902
申请日：2001-11-27
摘要： Error detection section 109 carries out error detection using demodulated data and outputs an error rate to SIR versus error rate estimation section 110. SIR versus error rate estimation section 110 estimates an SIR versus error rate and outputs the result of decision as to whether the correction of the target SIR value is necessary or not to target SIR correction section 111. Target SIR correction section 111 corrects the target SIR value based on the decision result. The information on the demodulation capability of a BTS is output to G parameter control section 112 and G parameter control section 112 determines an optimal gain factor. A G parameter indicating the determined gain factor is output to multiplexing section 107 of the BTS. The G parameter is output to SIR versus error rate estimation section 110. This makes it possible to perform communications with an optimal gain factor and target SIR during diversity handover between base stations with and without an interference canceller or between base stations with interference cancellers of different capabilities.
摘要翻译： 错误检测部件109使用解调数据进行错误检测，并向SIR与误差率估计部件110输出错误率。 SIR对误差率估计部110估计SIR与误差率，并且输出关于目标SIR值的校正是否需要的目标SIR校正部111的判定结果。 目标SIR校正部111基于判定结果来校正目标SIR值。 关于BTS的解调能力的信息被输出到G参数控制部分112，并且G参数控制部分112确定最佳增益因子。 指示确定的增益因子的G参数被输出到BTS的多路复用部分107。 G参数输出到SIR与误码率估计部分110。 这使得可以在具有和不具有干扰消除器的基站之间或者具有不同能力的干扰消除器的基站之间的分集切换期间执行具有最佳增益因子和目标SIR的通信。
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公开(公告)号：US20060121930A1
公开(公告)日：2006-06-08
申请号：US11341430
申请日：2006-01-30
申请人： Kenichi Miyoshi , Takahisa Aoyama , Toyoki Ue , Osamu Kato , Katsuhiko Hiramatsu , Atsushi Sumasu
发明人： Kenichi Miyoshi , Takahisa Aoyama , Toyoki Ue , Osamu Kato , Katsuhiko Hiramatsu , Atsushi Sumasu
IPC分类号： H04B7/00
CPC分类号： H04W52/265 , H04W52/24 , H04W52/241 , H04W52/246 , H04W52/262 , H04W52/267 , H04W52/367
摘要： An allocation section 101 in a base station apparatus of the present invention sets the transmission rate of a transmit signal for a communication terminal apparatus based on a DRC signal transmitted from that communication terminal apparatus. A power margin information detector 117 detects power margin information from a demodulated signal generated by a demodulator 115, and, using that power margin information, a power setting section 118 makes a setting so as to give the minimum transmission power value at which received signal characteristics in each communication terminal apparatus meet the desired quality. Using the set transmission power value, the base station apparatus transmits a transmit signal of the set transmission rate to a communication terminal apparatus. By this means it is possible to suppress interference to a communication terminal apparatus that performs adaptive modulation communication with another base station apparatus and a communication terminal apparatus that performs adaptive modulation communication with the local base station apparatus at the same time.
摘要翻译： 本发明的基站装置中的分配部101基于从该通信终端装置发送的DRC信号来设定通信终端装置的发送信号的发送速度。 功率余量信息检测器117从解调器115产生的解调信号中检测功率余量信息，并且使用该功率余量信息，功率设定部118进行设定，以便给出接收信号特性 在每个通信终端设备中满足期望的质量。 使用设定的发送功率值，基站装置向通信终端装置发送所设定的发送速率的发送信号。 通过这种方式，可以抑制对与本地基站装置同时执行自适应调制通信的另一基站装置和通信终端装置进行自适应调制通信的通信终端装置的干扰。
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