公开(公告)号：US20110276675A1

公开(公告)日：2011-11-10

申请号：US13102753

申请日：2011-05-06

Applicant: Atul Singh ,  Guofei Jiang ,  Akhilesh Saxena

Inventor： Atul Singh ,  Guofei Jiang ,  Akhilesh Saxena

IPC: G06F15/16

CPC classification number: G06F9/4856

Abstract: Systems and methods for determining whether networked system migrations are successful are disclosed. In accordance with one method, a first set of properties of the networked system on a source platform in a first administrative domain is determined. Further, the method includes transferring the networked system to a destination platform in a second administrative domain. In addition, a second set of properties of the transferred system on the destination platform is determined, where the first and second sets of properties include functional properties and at least one of: performance properties, security properties or reliability properties. The method also includes outputting an indication that the transfer of the system to the destination platform is successful in response to determining that one or more of the properties of the second set are equivalent to corresponding properties of the first set.

Abstract translation: 公开了确定联网系统迁移是否成功的系统和方法。 根据一种方法，确定在第一管理域中的源平台上的联网系统的第一组属性。 此外，该方法包括将网络系统传送到第二管理域中的目的地平台。 此外，确定目的地平台上的传送系统的第二组属性，其中第一和第二属性集合包括功能属性和性能属性，安全属性或可靠性属性中的至少一个。 该方法还包括响应于确定第二组的一个或多个属性等同于第一组的对应属性而输出系统到目的地平台的传送成功的指示。

公开(公告)号：US20110274209A1

公开(公告)日：2011-11-10

申请号：US13112629

申请日：2011-05-20

Applicant: Mohammad A. Khojastepour

Inventor： Mohammad A. Khojastepour

IPC: H04L25/49

CPC classification number: H04B7/0632 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0639

Abstract: Methods and apparatus are disclosed for applying successive multi-rank beamforming strategies (e.g., successive precoding strategies) for the design of precoders over a set of parallel channels. Successive beamforming is applied to a narrow band channel model and is also applied for finer quantization of a single beamforming vector (e.g., recursive beamforming). A first embodiment provides the optimal approach with high complexity. An alternative embodiment provides successive beamforming for near optimal precoding selection with medium complexity. A low complexity method for precoder selection is also provided wherein a channel representative matrix for the set of parallel channels is determined and successive beamforming on the calculated channel representative is applied.

Abstract translation: 公开了用于在一组并行通道上设计预编码器的连续多级波束形成策略（例如，连续预编码策略）的方法和装置。 连续波束成形被应用于窄带信道模型，并且还被应用于单个波束成形向量（例如，递归波束成形）的更精细量化。 第一实施例提供了高复杂度的最佳方法。 替代实施例提供连续的波束成形用于具有中等复杂度的近最优预编码选择。 还提供了一种用于预编码器选择的低复杂度方法，其中确定用于该组并行信道的信道代表性矩阵，并且应用所计算的信道代表上的连续波束成形。

公开(公告)号：US20110274207A1

公开(公告)日：2011-11-10

申请号：US13111521

申请日：2011-05-19

Applicant: Mohammad A. Khojastepour ,  Narayan Prasad

Inventor： Mohammad A. Khojastepour ,  Narayan Prasad

IPC: H04L25/49

CPC classification number: H04B7/0617 ,  H04B7/0456 ,  H04B7/0632 ,  H04B7/0639

Abstract: A multi-rank beamforming (MRBF) scheme in which the downlink channel is estimated and an optimal precoding matrix to be used by the MRBF transmitter is determined accordingly. The optimal precoding matrix is selected from a codebook of matrices having a recursive structure which allows for efficient computation of the optimal precoding matrix and corresponding Signal to Interference and Noise Ratio (SINR). The codebook also enjoys a small storage footprint. Due to the computational efficiency and modest memory requirements, the optimal precoding determination can be made at user equipment (UE) and communicated to a transmitting base station over a limited uplink channel for implementation over the downlink channel.

Abstract translation: 相应地确定其中估计下行链路信道并由MRBF发射机使用的最佳预编码矩阵的多级波束成形（MRBF）方案。 从具有递归结构的矩阵码本中选择最佳预编码矩阵，其允许有效计算最佳预编码矩阵和对应的信号与干扰和噪声比（SINR）。 该码本还具有小的存储空间。 由于计算效率和适度的存储器要求，可以在用户设备（UE）进行最佳预编码确定，并通过有限的上行链路信道传送到发射基站，以通过下行链路信道实现。

公开(公告)号：US20110274203A1

公开(公告)日：2011-11-10

申请号：US13111594

申请日：2011-05-19

Applicant: Mohammad A. Khojastepour ,  Narayan Prasad

Inventor： Mohammad A. Khojastepour ,  Narayan Prasad

IPC: H04L27/00

CPC classification number: H04B7/0617 ,  H04B7/0456 ,  H04B7/0632 ,  H04B7/0639

Abstract: A multi-rank beamforming (MRBF) scheme in which the downlink channel is estimated and an optimal precoding matrix to be used by the MRBF transmitter is determined accordingly. The optimal precoding matrix is selected from a codebook of matrices having a recursive structure which allows for efficient computation of the optimal precoding matrix and corresponding Signal to Interference and Noise Ratio (SINR). The codebook also enjoys a small storage footprint. Due to the computational efficiency and modest memory requirements, the optimal precoding determination can be made at user equipment (UE) and communicated to a transmitting base station over a limited uplink channel for implementation over the downlink channel.

Abstract translation: 相应地确定其中估计下行链路信道并由MRBF发射机使用的最佳预编码矩阵的多级波束成形（MRBF）方案。 从具有递归结构的矩阵码本中选择最佳预编码矩阵，其允许有效计算最佳预编码矩阵和对应的信号与干扰和噪声比（SINR）。 该码本还具有小的存储空间。 由于计算效率和适度的存储器要求，可以在用户设备（UE）进行最佳预编码确定，并通过有限的上行链路信道传送到发射基站，以通过下行链路信道实现。

公开(公告)号：US20110270604A1

公开(公告)日：2011-11-03

申请号：US13078985

申请日：2011-04-03

Applicant: Yanjun Qi ,  Xia Ning ,  Pavel Kuksa ,  Bing Bai

Inventor： Yanjun Qi ,  Xia Ning ,  Pavel Kuksa ,  Bing Bai

IPC: G06F17/27

CPC classification number: G06F17/2785 ,  G06F17/271 ,  G06F17/30684

Abstract: Systems and methods are disclosed to perform relation extraction in text by applying a convolution strategy to determine a kernel between sentences; applying one or more semi-supervised strategies to the kernel to encode syntactic and semantic information to recover a relational pattern of interest; and applying a classifier to the kernel to identify the relational pattern of interest in the text in response to a query.

Abstract translation: 公开了系统和方法，通过应用卷积策略来确定句子之间的内核来执行文本中的关系提取; 对内核应用一个或多个半监督策略来编码句法和语义信息以恢复关注模式; 以及将分类器应用于内核以在响应于查询的情况下识别文本中感兴趣的关系模式。

公开(公告)号：US20110268222A1

公开(公告)日：2011-11-03

申请号：US13112765

申请日：2011-05-20

Applicant: Mohammad A. Khojastepour

Inventor： Mohammad A. Khojastepour

IPC: H04B1/02

CPC classification number: H04B7/0632 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0639

Abstract: Methods and apparatus are disclosed for applying successive multi-rank beamforming strategies (e.g., successive precoding strategies) for the design of precoders over a set of parallel channels. Successive beamforming is applied to a narrow band channel model and is also applied for finer quantization of a single beamforming vector (e.g., recursive beamforming). A first embodiment provides the optimal approach with high complexity. An alternative embodiment provides successive beamforming for near optimal precoding selection with medium complexity. A low complexity method for precoder selection is also provided wherein a channel representative matrix for the set of parallel channels is determined and successive beamforming on the calculated channel representative is applied.

Abstract translation: 公开了用于在一组并行通道上设计预编码器的连续多级波束形成策略（例如，连续预编码策略）的方法和装置。 连续波束成形被应用于窄带信道模型，并且还被应用于单个波束成形向量（例如，递归波束成形）的更精细量化。 第一实施例提供了高复杂度的最佳方法。 替代实施例提供连续的波束成形用于具有中等复杂度的近最优预编码选择。 还提供了一种用于预编码器选择的低复杂度方法，其中确定用于该组并行信道的信道代表性矩阵，并且应用所计算的信道代表上的连续波束成形。

公开(公告)号：US20110268210A1

公开(公告)日：2011-11-03

申请号：US13155700

申请日：2011-06-08

Applicant: Mohammad A. Khojastepour

Inventor： Mohammad A. Khojastepour

IPC: H04B7/02

CPC classification number: H04B7/0617 ,  H04B7/04 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/046 ,  H04B7/0486 ,  H04W52/42 ,  H04W88/02 ,  H04W88/08

Abstract: A quantized multi-rank beamforming scheme for multiple-antenna systems such as a multiple-input-multiple-output (MIMO) wireless downlink User equipment (UE) estimates downlink channel and transmit power and determines rank and power allocations. A quantized beamforming matrix is then determined by the UE using successive beamforming. The UE also determines channel quality indices (CQI) which it feeds-back to the wireless downlink base station along with the index of the quantized beamforming matrix. The base station uses the CQI information to select a UE for scheduling of downlink transmission and the quantized beamforming matrix index received from the selected UE to beamform the downlink transmission to the UE. Base station overhead and is minimized while providing near-optimal performance given the constraints of a limited feed-back channel and computational complexity of the UE.

Abstract translation: 用于诸如多输入多输出（MIMO）无线下行链路用户设备（UE）的多天线系统的量化多级波束成形方案估计下行链路信道和发射功率并且确定等级和功率分配。 然后由UE使用连续的波束形成来确定量化的波束形成矩阵。 UE还确定其反馈到无线下行链路基站的信道质量指数（CQI）以及量化波束形成矩阵的索引。 基站使用CQI信息来选择用于下行链路传输的调度的UE和从所选择的UE接收的量化的波束成形矩阵索引来波束形成到UE的下行链路传输。 给定了有限的反馈信道和UE的计算复杂度的限制，基站开销被最小化，同时提供接近最佳的性能。

公开(公告)号：US20110255632A1

公开(公告)日：2011-10-20

申请号：US13088928

申请日：2011-04-18

Applicant: MOHAMMAD A. KHOJASTEPOUR ,  Narayan Prasad ,  Sampath Rangarajan

Inventor： MOHAMMAD A. KHOJASTEPOUR ,  Narayan Prasad ,  Sampath Rangarajan

IPC: H04L27/00

CPC classification number: H04B7/0452 ,  H04J11/0046 ,  H04L5/0023 ,  H04L25/03331 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/34 ,  H04W72/042 ,  H04W72/12

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110246848A1

公开(公告)日：2011-10-06

申请号：US13023667

申请日：2011-02-09

Applicant: Guosen Yue ,  Momin A. Uppal ,  Xiaodong Wang

Inventor： Guosen Yue ,  Momin A. Uppal ,  Xiaodong Wang

IPC: H04L1/08 ,  H03M13/05 ,  G06F11/10 ,  G06F11/14

CPC classification number: H04L1/0045 ,  H03M13/3723 ,  H03M13/3761 ,  H03M13/6306 ,  H04L1/1819

Abstract: Methods and systems for doped rateless retransmission include receiving ratelessly coded symbols. An attempt is made to decode the coded symbols using a processor by creating an associated code graph that represents the structure of the rateless code used by the symbols. If the decoding attempt fails, an input node is selected from the code graph using a metric that gauges the number and degree of connections to the input node based on the code graph structure. The selected input node is then requested for retransmission of the selected input node by a feedback channel.

Abstract translation: 用于掺杂无错重传的方法和系统包括接收无编码符号。 尝试使用处理器来解码编码符号，通过创建代表由符号使用的无码代码的结构的相关联的代码图。 如果解码尝试失败，则使用使用基于代码图结构来衡量与输入节点的连接的数量和程度的度量从代码图中选择输入节点。 然后通过反馈信道请求所选择的输入节点来重传所选择的输入节点。

公开(公告)号：US08023581B2

公开(公告)日：2011-09-20

申请号：US11857269

申请日：2007-09-18

Applicant: Narayan Prasad ,  Xiaodong Wang ,  Mohammad Madihian

Inventor： Narayan Prasad ,  Xiaodong Wang ,  Mohammad Madihian

IPC: H04L23/02 ,  H04L27/06

CPC classification number: H04L1/0054 ,  H04L25/03203 ,  H04L25/03286 ,  H04L25/03305

Abstract: A method includes the steps of i) listing out all possibilities for a first symbol of a two stream signal; ii) determining a second symbol of the two stream signal for each of the first symbol listed out, iii) evaluating a metric for each of the first symbol and second symbol pair, iv) listing out all possibilities for second symbol, v) determining a first symbol for each choice of the second symbol listed out, vi) evaluating a metric for each of the second symbol and first symbol pair, vii) determining an exact maximum log likelihood ratio for all bits using the metrics, and viii) decoding codeword(s) in the two stream signal using the determined exact maximum log likelihood ratio for all bits.

Abstract translation: 一种方法包括以下步骤：i）列出两个流信号的第一符号的所有可能性; ii）确定所列出的第一符号中的每一个的两个流信号的第二符号，iii）评估第一符号和第二符号对中的每一个的度量，iv）列出第二符号的所有可能性，v）确定 vi）对所述第二符号和第一符号对中的每个符号对的每一个的度量进行评估，vii）使用所述度量确定所有比特的精确最大对数似然比，以及viii）解码码字（ s）在两个流信号中，使用所确定的所有比特的精确最大对数似然比。