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1.发明公开Methods and systems for conveying scheduling information of overlapping co-scheduled users in an ofdma-mu-mimo system 有权的方法和系统用于重叠同时调度的用户的信息协调的传输的OFDMA-MU-MIMO SYSTE
公开(公告)号：EP2439999A3
公开(公告)日：2012-08-08
申请号：EP11192407.2
申请日：2009-12-18
发明人： Prasad, Narayan , Khojastepour, Mohammad Ali , Jiang, Meilong , Wang, Xiaodong , Rangarajan, Sampath
CPC分类号： H04W72/04 , H04B7/0452 , H04B7/0639 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/20 , H04L5/0007 , H04L25/0208 , H04W8/26 , H04W28/04 , H04W52/346 , H04W72/0446 , H04W72/12 , H04W72/1231 , H04W72/1289
摘要： Methods and systems for conveying or transmitting to any given user in an OFDMA-MU-MIMO system scheduling information of other co-scheduled users to permit the user to perform error-correction on received data and/or interference reduction on its received signals. The scheduling information can include resource block assignment, modulation constellations employed, coding rates employed, power levels utilized and precoder matrix indices used. Further, the scheduling information can be conveyed in part through dedicated reference symbol layers or pilot streams.
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2.发明授权MU-MIMO OFDMA systems and methods for servicing overlapping co-scheduled users 有权MU-MIMO OFDMA的系统和用于重叠同时调度的用户的供给方法
公开(公告)号：EP2440000B1
公开(公告)日：2015-12-02
申请号：EP11192430.4
申请日：2009-12-18
发明人： Prasad, Narayan , Khojastepour, Mohammad Ali , Jiang, Meilong , Wang, Xiaodong , Rangarajan, Sampath
IPC分类号： H04L25/02 , H04B7/04 , H04W28/04 , H04W72/12 , H04L1/20 , H04L27/00 , H04L1/00 , H04L5/00 , H04W72/04 , H04B7/06 , H04W8/26
CPC分类号： H04W72/04 , H04B7/0452 , H04B7/0639 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/20 , H04L5/0007 , H04L25/0208 , H04W8/26 , H04W28/04 , H04W52/346 , H04W72/0446 , H04W72/12 , H04W72/1231 , H04W72/1289
摘要： Methods and systems for conveying or transmitting to any given user in an OFDMA-MU-MIMO system scheduling information of other co-scheduled users to permit the user to perform error-correction on received data and/or interference reduction on its received signals. The scheduling information can include resource block assignment, modulation constellations employed, coding rates employed, power levels utilized and precoder matrix indices used. Further, the scheduling information can be conveyed in part through dedicated reference symbol layers or pilot streams. Moreover, a base station may transmit a preliminary estimate of the total number of users the base station expects to schedule, or an upper-bound on the total number of users, to the MU-MIMO users to permit the MU-MIMO users to determine preferred precoder matrix indices and indications of channel quality indices.
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3.发明公开Methods and systems for conveying scheduling information of overlapping co-scheduled users in an ofdma-mu-mimo system 有权的方法和系统用于在OFDMA MU-MIMO系统中调度用户的重叠的信息的传输
公开(公告)号：EP2439999A2
公开(公告)日：2012-04-11
申请号：EP11192407.2
申请日：2009-12-18
发明人： Prasad, Narayan , Khojastepour, Mohammad Ali , Jiang, Meilong , Wang, Xiaodong , Rangarajan, Sampath
CPC分类号： H04W72/04 , H04B7/0452 , H04B7/0639 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/20 , H04L5/0007 , H04L25/0208 , H04W8/26 , H04W28/04 , H04W52/346 , H04W72/0446 , H04W72/12 , H04W72/1231 , H04W72/1289
摘要： Methods and systems for conveying or transmitting to any given user in an OFDMA-MU-MIMO system scheduling information of other co-scheduled users to permit the user to perform error-correction on received data and/or interference reduction on its received signals. The scheduling information can include resource block assignment, modulation constellations employed, coding rates employed, power levels utilized and precoder matrix indices used. Further, the scheduling information can be conveyed in part through dedicated reference symbol layers or pilot streams.
摘要翻译： 的方法和系统用于输送或传送到任何给定的用户到的其他共同调度的用户OFDMA-MU-MIMO系统中的调度信息，以允许用户在其接收到的信号上接收到的数据和/或干扰减少执行纠错。 该调度信息可以包括资源块的分配，所使用的调制星座，所采用的编码率，功率水平和使用可利用的预编码器矩阵的索引。 此外，调度信息可以在通过专用的参考符号的层或导频流的一部分来传达。
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4.发明公开Mu-mimo-ofdma systems and methods for servicing overlapping co-scheduled users 有权MU-MIMO-OFDM系统和重叠的同时调度用户的供电方法
公开(公告)号：EP2440000A3
公开(公告)日：2012-09-05
申请号：EP11192430.4
申请日：2009-12-18
发明人： Prasad, Narayan , Khojastepour, Mohammad Ali , Jiang, Meilong , Wang, Xiaodong , Rangarajan, Sampath
CPC分类号： H04W72/04 , H04B7/0452 , H04B7/0639 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/20 , H04L5/0007 , H04L25/0208 , H04W8/26 , H04W28/04 , H04W52/346 , H04W72/0446 , H04W72/12 , H04W72/1231 , H04W72/1289
摘要： Methods and systems for conveying or transmitting to any given user in an OFDMA-MU-MIMO system scheduling information of other co-scheduled users to permit the user to perform error-correction on received data and/or interference reduction on its received signals. The scheduling information can include resource block assignment, modulation constellations employed, coding rates employed, power levels utilized and precoder matrix indices used. Further, the scheduling information can be conveyed in part through dedicated reference symbol layers or pilot streams. Moreover, a base station may transmit a preliminary estimate of the total number of users the base station expects to schedule, or an upper-bound on the total number of users, to the MU-MIMO users to permit the MU-MIMO users to determine preferred precoder matrix indices and indications of channel quality indices.
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5.发明公开Mu-mimo-ofdma systems and methods for servicing overlapping co-scheduled users 有权MU-MIMO OFDMA的系统和用于重叠同时调度的用户的供给方法
公开(公告)号：EP2440000A2
公开(公告)日：2012-04-11
申请号：EP11192430.4
申请日：2009-12-18
发明人： Prasad, Narayan , Khojastepour, Mohammad Ali , Jiang, Meilong , Wang, Xiaodong , Rangarajan, Sampath
CPC分类号： H04W72/04 , H04B7/0452 , H04B7/0639 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/20 , H04L5/0007 , H04L25/0208 , H04W8/26 , H04W28/04 , H04W52/346 , H04W72/0446 , H04W72/12 , H04W72/1231 , H04W72/1289
摘要： Methods and systems for conveying or transmitting to any given user in an OFDMA-MU-MIMO system scheduling information of other co-scheduled users to permit the user to perform error-correction on received data and/or interference reduction on its received signals. The scheduling information can include resource block assignment, modulation constellations employed, coding rates employed, power levels utilized and precoder matrix indices used. Further, the scheduling information can be conveyed in part through dedicated reference symbol layers or pilot streams. Moreover, a base station may transmit a preliminary estimate of the total number of users the base station expects to schedule, or an upper-bound on the total number of users, to the MU-MIMO users to permit the MU-MIMO users to determine preferred precoder matrix indices and indications of channel quality indices.
摘要翻译： 的方法和系统用于输送或传送到任何给定的用户到的其他共同调度的用户OFDMA-MU-MIMO系统中的调度信息，以允许用户在其接收到的信号上接收到的数据和/或干扰减少执行纠错。 该调度信息可以包括资源块的分配，所使用的调制星座，所采用的编码率，功率水平和使用可利用的预编码器矩阵的索引。 此外，调度信息可以在通过专用的参考符号的层或导频流的一部分来传达。 更过来，基站可以发送用户的总数量的基站正在期待调度，或到的初步估计上限上的用户的总数量，对MU-MIMO用户，以允许MU-MIMO用户确定性矿 优选的预编码器矩阵的索引和信道质量指数的指示。
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6.发明公开
公开(公告)号：EP1758258A2
公开(公告)日：2007-02-28
申请号：EP06118099.8
申请日：2006-07-28
发明人： Wang, Xiaodong , Madihian, Mohammad
IPC分类号： H04B1/707
CPC分类号： H04B1/7103 , H04B2201/709709 , H04J13/00
摘要： A method for preprocessing a spread-spectrum transmission, comprising the steps of:
receiving channel state information for multipath channels to K receivers, K ≥ 2;
precoding incoming K × 1 symbol vectors prior to transmission by
applying a first feedback filter to a previously-precoded vector, and subtracting from the incoming K × 1 symbol vector to cancel intersymbol interference, the first feedback filter generated using the channel state information; and
applying a second feedback filter and a feedforward filter, the second feedback filter and the feedforward filter arranged so as to use the channel state information to cancel multiuser interference along the multipath channels to the K receivers.摘要翻译： 一种用于预处理扩频传输的方法，包括以下步骤：接收K个接收机的多路信道的信道状态信息，K≥2; 通过将第一反馈滤波器应用于先前预编码的矢量并从输入的K×1符号矢量中减去以消除符号间干扰来对传入之前的K×1个符号矢量进行预编码，所述第一反馈滤波器使用信道状态信息产生; 并且应用第二反馈滤波器和前馈滤波器，第二反馈滤波器和前馈滤波器被安排为使用信道状态信息来消除沿多径信道到K个接收机的多用户干扰。
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7.发明公开Nonlinear precoding in code-division multiple access communication system 审中-公开在Kodeverteilvielfachzugriffsnachrichtenübertragungssystem非线性预
公开(公告)号：EP1758258A3
公开(公告)日：2012-01-04
申请号：EP06118099.8
申请日：2006-07-28
发明人： Wang, Xiaodong , Madihian, Mohammad
CPC分类号： H04B1/7103 , H04B2201/709709 , H04J13/00
摘要： A method for preprocessing a spread-spectrum transmission, comprising the steps of:
receiving channel state information for multipath channels to K receivers, K ≥ 2;
precoding incoming K × 1 symbol vectors prior to transmission by
applying a first feedback filter to a previously-precoded vector, and subtracting from the incoming K × 1 symbol vector to cancel intersymbol interference, the first feedback filter generated using the channel state information; and
applying a second feedback filter and a feedforward filter, the second feedback filter and the feedforward filter arranged so as to use the channel state information to cancel multiuser interference along the multipath channels to the K receivers.
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