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21. 发明申请

US20120069757A1 Low Complexity Link Adaptatation for LTE/LTE-A Uplink with a Turbo Receiver 有权
标题翻译：具有Turbo接收器的LTE / LTE-A上行链路的低复杂度链路自适应
公开(公告)号：US20120069757A1
公开(公告)日：2012-03-22
申请号：US13234885
申请日：2011-09-16
申请人： Meilong Jiang , Narayan Prasad , Guosen Yue , Sampath Rangarajan
发明人： Meilong Jiang , Narayan Prasad , Guosen Yue , Sampath Rangarajan
IPC分类号： H04B15/00 , H04W24/00 , H04L12/26
CPC分类号： H04B7/0417 , H04B7/0404 , H04B7/0486 , H04B7/0626 , H04B7/063 , H04B7/0639 , H04J11/0033 , H04L1/0031 , H04L5/0023
摘要： An inventive method for link adaptation for an LTE/LTE-A uplink with a turbo SIC receiver includes the steps of determining a precoding matrix index PMI and rank index RI selection for an LTE/LTE-A uplink when precoding of the uplink is enabled, responsive to channel state information of a subcarrier in the uplink; determining a decoding order for codewords in the uplink i) when the precoding of the uplink is not enabled and ii) if needed when the precoding of the uplink is enabled; performing modulation and coding scheme MCS assignment for the uplink based on a hard decision successive interference cancellation SIC rule (without intra-CW cancellation) or a partial hard decision successive interference cancellation SIC rule (with intra-CW cancellation), responsive to the determined PMI and RI selection; and influencing data transmission in the uplink responsive to the MCS assignment for detection by a turbo SIC receiver.
摘要翻译：用于具有turbo SIC接收机的LTE / LTE-A上行链路的链路适配的创新方法包括以下步骤：当启用上行链路的预编码时，确定LTE / LTE-A上行链路的预编码矩阵索引PMI和秩索引RI选择，响应于所述上行链路中的子载波的信道状态信息; 确定所述上行链路中的码字的解码顺序i）当所述上行链路的预编码不被使能时，以及ii）如果在启用所述上行链路的预编码时需要; 基于硬判决连续干扰消除SIC规则（无内部CW消除）或部分硬判决连续干扰消除SIC规则（具有CW内取消），执行针对上行链路的调制和编码方案MCS分配，响应于所确定的PMI 和RI选择; 并且响应于用于由turbo SIC接收机检测的MCS分配来影响上行链路中的数据传输。

22. 发明申请

US20110255632A1 SIGNALING OF MIXTURE COMBINATION SETS 有权
标题翻译：混合组合设置信号
公开(公告)号：US20110255632A1
公开(公告)日：2011-10-20
申请号：US13088928
申请日：2011-04-18
申请人： MOHAMMAD A. KHOJASTEPOUR , Narayan Prasad , Sampath Rangarajan
发明人： MOHAMMAD A. KHOJASTEPOUR , Narayan Prasad , Sampath Rangarajan
IPC分类号： H04L27/00
CPC分类号： H04B7/0452 , H04J11/0046 , H04L5/0023 , H04L25/03331 , H04L27/0008 , H04L27/0012 , H04L27/34 , H04W72/042 , H04W72/12
摘要： Systems and methods for conveying and determining modulations schemes employed by co-scheduled users are disclosed. In addition, methods and systems for designing signaling schemes that convey such information are also disclosed. In accordance with one method, an index is received and a table of indices in which the received index denotes a plurality of different sets of modulation schemes is referenced. Further, one or more modulation schemes of at least one co-scheduled user is determined based on the referencing. In addition, data signals are received and are processed by utilizing the one or more modulation schemes.
摘要翻译：公开了用于传送和确定共同调度用户采用的调制方案的系统和方法。此外，还公开了用于设计传达这种信息的信令方案的方法和系统。根据一种方法，接收索引，并且参考其中接收到的索引表示多个不同的调制方案组的索引表。此外，基于参考来确定至少一个共同调度用户的一个或多个调制方案。此外，接收数据信号并通过利用一个或多个调制方案来处理数据信号。

23. 发明授权

US08599951B2 Feed-forward control signaling and decoding schemes 有权
公开(公告)号：US08599951B2
公开(公告)日：2013-12-03
申请号：US13115162
申请日：2011-05-25
申请人： Mohammad A. Khojastepour , Narayan Prasad , Sampath Rangarajan
发明人： Mohammad A. Khojastepour , Narayan Prasad , Sampath Rangarajan
IPC分类号： H04B7/02 , H04L1/02
摘要： Systems and methods for conveying wireless transmission allocation information are disclosed. In accordance with one method, an index indicating selected data stream parameters is received. In addition, an indication of a number of transmit antennas at a transmitter from which the data stream is transmitted is also received. Further, the selected parameters are determined from the index based on the number of transmit antennas at the transmitter. Moreover, data signals are received and processed with a processor in accordance with the selected data stream parameters.

24. 发明授权

US08660202B2 Robust precoder and receiver filter design for Gaussian interference channel 有权
标题翻译：用于高斯干扰信道的鲁棒预编码器和接收机滤波器设计
公开(公告)号：US08660202B2
公开(公告)日：2014-02-25
申请号：US13234945
申请日：2011-09-16
申请人： Jubin Jose , Narayan Prasad , Mohammad A. Khojastepour , Sampath Rangarajan
发明人： Jubin Jose , Narayan Prasad , Mohammad A. Khojastepour , Sampath Rangarajan
IPC分类号： H04L1/02
CPC分类号： H04L25/03343 , H04B7/0456 , H04B7/0465 , H04L2025/03426 , H04L2025/03611
摘要： A system and method for providing at least one transmit precoder includes transforming at least one of a weighted sum-rate and max-min rate objective into two or more sub-problems by introducing at least one slack variable. The two or more sub-problems are iterated on a computer readable storage medium to provide at least one transmit precoder for each transmitter.
摘要翻译：用于提供至少一个发送预编码器的系统和方法包括通过引入至少一个松弛变量将加权和速率和最大速率目标中的至少一个变换成两个或更多个子问题。在计算机可读存储介质上重复两个或更多个子问题，以为每个发射器提供至少一个发射预编码器。

25. 发明授权

US08625695B2 Feed-forward control signaling and decoding schemes 有权
标题翻译：前馈控制信令和解码方案
公开(公告)号：US08625695B2
公开(公告)日：2014-01-07
申请号：US13115162
申请日：2011-05-25
申请人： Mohammad A. Khojastepour , Narayan Prasad , Sampath Rangarajan
发明人： Mohammad A. Khojastepour , Narayan Prasad , Sampath Rangarajan
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0452 , H04B7/0632 , H04B7/0639 , H04B7/0665 , H04L5/0023 , H04L5/0094
摘要： Systems and methods for conveying wireless transmission allocation information are disclosed. In accordance with one method, an index indicating selected data stream parameters is received. In addition, an indication of a number of transmit antennas at a transmitter from which the data stream is transmitted is also received. Further, the selected parameters are determined from the index based on the number of transmit antennas at the transmitter. Moreover, data signals are received and processed with a processor in accordance with the selected data stream parameters.
摘要翻译：公开了传送无线传输分配信息的系统和方法。根据一种方法，接收指示所选数据流参数的索引。此外，还接收在发送数据流的发送器处的多个发送天线的指示。此外，基于发射机处的发射天线的数量，从索引确定所选择的参数。此外，根据所选择的数据流参数，处理器接收并处理数据信号。

26. 发明授权

US08472554B2 Signaling of mixture combination sets 有权
标题翻译：混合组合组合信号
公开(公告)号：US08472554B2
公开(公告)日：2013-06-25
申请号：US13088928
申请日：2011-04-18
申请人： Mohammad A. Khojastepour , Narayan Prasad , Sampath Rangarajan
发明人： Mohammad A. Khojastepour , Narayan Prasad , Sampath Rangarajan
IPC分类号： H04L27/00
CPC分类号： H04B7/0452 , H04J11/0046 , H04L5/0023 , H04L25/03331 , H04L27/0008 , H04L27/0012 , H04L27/34 , H04W72/042 , H04W72/12
摘要： Systems and methods for conveying and determining modulations schemes employed by co-scheduled users are disclosed. In addition, methods and systems for designing signaling schemes that convey such information are also disclosed. In accordance with one method, an index is received and a table of indices in which the received index denotes a plurality of different sets of modulation schemes is referenced. Further, one or more modulation schemes of at least one co-scheduled user is determined based on the referencing. In addition, data signals are received and are processed by utilizing the one or more modulation schemes.
摘要翻译：公开了用于传送和确定共同调度用户采用的调制方案的系统和方法。此外，还公开了用于设计传达这种信息的信令方案的方法和系统。根据一种方法，接收索引，并且参考其中接收到的索引表示多个不同的调制方案组的索引表。此外，基于参考来确定至少一个共同调度用户的一个或多个调制方案。此外，接收数据信号并通过利用一个或多个调制方案来处理数据信号。

27. 发明申请

US20120069928A1 ROBUST PRECODER AND RECEIVER FILTER DESIGN FOR GAUSSIAN INTERFERENCE CHANNEL 有权
标题翻译：高斯干扰通道的稳定的预编码器和接收器滤波器设计
公开(公告)号：US20120069928A1
公开(公告)日：2012-03-22
申请号：US13234945
申请日：2011-09-16
申请人： Jubin Jose , Narayan Prasad , Mohammad A. Khojastepour , Sampath Rangarajan
发明人： Jubin Jose , Narayan Prasad , Mohammad A. Khojastepour , Sampath Rangarajan
IPC分类号： H04L25/03 , H04B15/00
CPC分类号： H04L25/03343 , H04B7/0456 , H04B7/0465 , H04L2025/03426 , H04L2025/03611
摘要： A system and method for providing at least one transmit precoder includes transforming at least one of a weighted sum-rate and max-min rate objective into two or more sub-problems by introducing at least one slack variable. The two or more sub-problems are iterated on a computer readable storage medium to provide at least one transmit precoder for each transmitter.
摘要翻译：用于提供至少一个发送预编码器的系统和方法包括通过引入至少一个松弛变量将加权和速率和最大速率目标中的至少一个变换成两个或更多个子问题。在计算机可读存储介质上重复两个或更多个子问题，以为每个发射器提供至少一个发射预编码器。

28. 发明授权

US09144076B2 User pairing and resource allocation for downlink multiuser multi-input-multi-output in long term evolution advanced systems 有权
标题翻译：用户配对和资源分配用于下行多用户多输入多输出的长期演进高级系统
公开(公告)号：US09144076B2
公开(公告)日：2015-09-22
申请号：US13622012
申请日：2012-09-18
申请人： Guosen Yue , Narayan Prasad , Sampath Rangarajan
发明人： Guosen Yue , Narayan Prasad , Sampath Rangarajan
IPC分类号： H04W4/00 , H04W72/06 , H04L5/00 , H04L27/26
CPC分类号： H04W72/06 , H04L5/0037 , H04L27/2601
摘要： A method for user pairing and resource allocation, includes performing a multiuser multi-input-multi-output (MU-MIMO) user pairing process to maximize an objective metric without common rank restriction; performing a rank balancing process to determine a uniform transmission user rank along all allocated resource blocks for each user; and with the uniform transmission user rank fixed for all the users, determining optimal user pairing and allocation for each of the resource blocks for each user.
摘要翻译：一种用于用户配对和资源分配的方法，包括执行多用户多输入多输出（MU-MIMO）用户配对过程以最大化不具有共同秩限制的客观量度; 执行秩平衡处理以确定针对每个用户的所有分配的资源块的均匀传输用户等级; 并且针对所有用户固定均匀传输用户等级，为每个用户确定每个资源块的最佳用户配对和分配。

29. 发明授权

US09100946B2 Scheduling information of overlapping co-scheduled users in an OFDMA-MU-MIMO system 有权
标题翻译：在OFDMA-MU-MIMO系统中调度重叠的共同调度用户的信息
公开(公告)号：US09100946B2
公开(公告)日：2015-08-04
申请号：US13550099
申请日：2012-07-16
申请人： Narayan Prasad , Mohammad Ali Khojastepour , Meilong Jiang , Xiaodong Wang , Sampath Rangarajan
发明人： Narayan Prasad , Mohammad Ali Khojastepour , Meilong Jiang , Xiaodong Wang , Sampath Rangarajan
IPC分类号： H04W72/08 , H04W72/04 , H04L1/20 , H04W28/04 , H04W72/12 , H04L5/00 , H04B7/04 , H04L25/02 , H04L1/00 , H04W8/26 , H04B7/06
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： A user equipment (UE) used in a multi-user (MU)-multiple input multiple output (MIMO) orthogonal frequency division multiple access (OFDMA) system is disclosed. The UE includes a receiving unit to receive from a base station an indication of an estimate of or an upper-bound on the total number of MU-MIMO user equipments (|S|) that are scheduled on a sub-band by the base station, wherein the sub-band includes one or more resource units, a calculation unit to calculate channel quality based on the indication of the estimate of or the upper-bound on the total number of MU-MIMO user equipments, and a transmission unit to transmit to the base station an indication of the channel quality. Other methods and apparatuses also are disclosed.
摘要翻译：公开了在多用户（MU） - 多输入多输出（MIMO）正交频分多址（OFDMA）系统中使用的用户设备（UE）。 UE包括：接收单元，用于从基站接收由基站在子带上调度的MU-MIMO用户设备（| S |）的总数的估计或上限的指示; 其特征在于，所述子带包括一个以上的资源单元，基于MU-MIMO用户设备的总数的估计或上限的指示来计算信道质量的计算单元，以及发送单元向基站提供信道质量的指示。还公开了其它方法和装置。

30. 发明申请

US20120057557A1 Method and Systems for Conveying Scheduling Information of Overlapping Co-Scheduled Users in an OFDMA-MU-MIMO System 有权
公开(公告)号：US20120057557A1
公开(公告)日：2012-03-08
申请号：US13296387
申请日：2011-11-15
申请人： Narayan Prasad , Mohammad Ali Khojastepour , Meilong Jiang , Xiaodong Wang , Sampath Rangarajan
发明人： Narayan Prasad , Mohammad Ali Khojastepour , Meilong Jiang , Xiaodong Wang , Sampath Rangarajan
IPC分类号： H04W74/02
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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