公开(公告)号：US20130223501A1

公开(公告)日：2013-08-29

申请号：US13488965

申请日：2012-06-05

申请人： Suresh Kalyanasundaram ,  Shirish Nagaraj ,  Raghavendra M. Ramakrishna

发明人： Suresh Kalyanasundaram ,  Shirish Nagaraj ,  Raghavendra M. Ramakrishna

IPC分类号： H04B17/00 ,  H04B1/16

CPC分类号： H04L1/1829

摘要： Apparatus, methods, and programs products are disclosed that perform the following techniques: in a receiver comprising first and second stages, each stage at least decoding information corresponding to a user equipment, wherein the second stage performs decoding only if the first stage completes decoding with a fail, predicting whether decoding performed by the second stage for the user equipment will complete with a pass or fail; and prior to completion of the second stage, sending an indication of the predicted pass or fail to the user equipment.

摘要翻译： 公开了执行以下技术的装置，方法和程序产品：在包括第一和第二级的接收机中，每个级至少解码对应于用户设备的信息，其中第二级仅在第一级完成解码时执行解码， 一个失败，预测用户设备的第二阶段执行的解码是否完成通过或失败; 并且在第二阶段完成之前，向用户设备发送预测通过或失败的指示。

公开(公告)号：US08493941B2

公开(公告)日：2013-07-23

申请号：US11409161

申请日：2006-04-21

申请人： Shirish Nagaraj ,  Subramanian Vasudevan

发明人： Shirish Nagaraj ,  Subramanian Vasudevan

IPC分类号： H04B1/707

CPC分类号： H04W52/48 ,  H04W36/24 ,  H04W52/28 ,  H04W52/286 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/40 ,  H04W52/56

摘要： A mobile terminal is controlled via over-the-air feedback so as to enable its data transmissions to be independently and successfully decoded at each of the base stations in its active set absent a transmit power limitation or data retransmission limit. Using the decoded data, the channel is re-estimated and the waveform received from the mobile terminal is reconstructed and subtracted from the total interference at each base station in the active set where decoding has been successful. As a result, transmissions from other mobile terminals, which have yet to be successfully decoded at such a base station, will experience a higher signal-to-noise ratio and thus an increased likelihood of being successfully decoded.

摘要翻译： 通过空中反馈来控制移动终端，以便在没有发射功率限制或数据重传限制的情况下，使得其数据传输能够在其活动集合中的每个基站上独立且成功地解码。 使用解码的数据，重新估计信道，并从移动终端接收到的波形被重构，并从解码成功的有效集中的每个基站的总干扰中减去。 因此，在这种基站尚未成功解码的其他移动终端的传输将会经历更高的信噪比，从而增加成功解码的可能性。

公开(公告)号：US20080160951A1

公开(公告)日：2008-07-03

申请号：US11645589

申请日：2006-12-27

申请人： Francis Dominique ,  Shirish Nagaraj ,  Hongwei Kong ,  Walid Elias Nabhane

发明人： Francis Dominique ,  Shirish Nagaraj ,  Hongwei Kong ,  Walid Elias Nabhane

IPC分类号： G08C17/00 ,  H04B1/04 ,  H04B1/16

CPC分类号： H04L1/1887 ,  H04W52/0216 ,  Y02D70/1242 ,  Y02D70/25

摘要： Whether to process a control channel corresponding to a data channel carrying transmitted data based on a re-transmission indicator and a threshold value is determined at the receiver. The re-transmission indicator indicates a number of times the transmitted data has been transmitted. Control information received on the control channel is then selectively processed based on the determining step.

摘要翻译： 在接收机处确定是否根据重传指示符和阈值来处理对应于承载传送数据的数据信道的控制信道。 重传指示符表示发送数据的次数。 然后基于确定步骤选择性地处理在控制信道上接收的控制信息。

公开(公告)号：US20070293171A1

公开(公告)日：2007-12-20

申请号：US11424352

申请日：2006-06-15

申请人： Shupeng Li ,  Shirish Nagaraj ,  Sudhir Ramakrishna ,  Ashok N. Rudrapatna

发明人： Shupeng Li ,  Shirish Nagaraj ,  Sudhir Ramakrishna ,  Ashok N. Rudrapatna

IPC分类号： H04B1/18

CPC分类号： H04W72/0413

摘要： A method and an apparatus for wireless communication between a receiver and a transmitter in a cellular system are provided. The method comprises associating a channel of known structure at the transmitter with the transmission of a first control channel to indicate a variable structure of the first control channel to the receiver.

摘要翻译： 提供了一种在蜂窝系统中的接收机与发射机之间进行无线通信的方法和装置。 该方法包括将发射机处的已知结构的信道与第一控制信道的传输相关联，以指示到接收机的第一控制信道的可变结构。

公开(公告)号：US20070248045A1

公开(公告)日：2007-10-25

申请号：US11408019

申请日：2006-04-21

申请人： Shirish Nagaraj

发明人： Shirish Nagaraj

IPC分类号： H04Q7/00

CPC分类号： H04L5/023 ,  H04L27/261

摘要： In an example method of scheduling mobile users, mobile users are assigned to one of at least a first layer and a second layer, where each of the first and second layers are associated with a same frequency band. The mobile users are further assigned, in the first layer, to different frequency sub-bands in the frequency band such that the users in the first layer have non-overlapping first sub-band assignments. The mobile users are further assigned, in the second layer, to different frequency sub-bands in the frequency band such that the users in the second layer have non-overlapping second sub-band assignments. The mobile users are then scheduled for transmission based on the first and second layer and the first and second sub-band assignments. In a further example decoding method, layer transmissions are decoded in succession with interference cancellation performed between each layer decoding step. In a second example decoding method, mobile users in multiple layers and within assigned channels are jointly decoded.

摘要翻译： 在调度移动用户的示例性方法中，移动用户被分配到至少第一层和第二层中的一个，其中第一层和第二层中的每一层与相同的频带相关联。 移动用户在第一层中被进一步分配到频带中的不同频率子带，使得第一层中的用户具有不重叠的第一子带分配。 移动用户在第二层中被进一步分配到频带中的不同频率子带，使得第二层中的用户具有非重叠的第二子带分配。 然后，基于第一和第二层以及第一和第二子带分配来调度移动用户的传输。 在另一示例性解码方法中，层间传输被连续地解码，每个层解码步骤之间执行干扰消除。 在第二示例解码方法中，多层和分配频道内的移动用户被联合解码。

公开(公告)号：US20070197251A1

公开(公告)日：2007-08-23

申请号：US11355977

申请日：2006-02-17

申请人： Suman Das ,  Shirish Nagaraj ,  Harish Viswanathan

发明人： Suman Das ,  Shirish Nagaraj ,  Harish Viswanathan

IPC分类号： H04Q7/20

CPC分类号： H04W52/243 ,  H04W52/146 ,  H04W52/241 ,  H04W52/247

摘要： Methods of reverse link power control are provided. In a first example reverse link power control process, a signal-to-interference+noise (SINR) is measured for a plurality of mobile stations. A power control adjustment is determined for each of the mobile stations based on the measured SINR for the mobile station and a fixed target SINR, the fixed target SINR being used in the determining step for each mobile station and sending the power control adjustments to the mobile stations. In a second example reverse link power control process, one or more signals are transmitted to a base station. A power control adjustment indicator indicating an adjustment to a transmission power level is received. The received power control adjustment is determined based on a measured signal-to-interference+noise ratio (SINR) for the one or more transmitted signals and a fixed target SINR threshold, the fixed target SINR threshold being used for power control adjustment of a plurality of mobile stations.

摘要翻译： 提供了反向链路功率控制的方法。 在第一示例性的反向链路功率控制过程中，针对多个移动站测量信号与干扰+噪声（SINR）。 基于移动站的测量SINR和固定目标SINR确定每个移动站的功率控制调整，在每个移动台的确定步骤中使用固定目标SINR，并将功率控制调整发送到移动台 车站。 在第二示例性的反向链路功率控制过程中，一个或多个信号被发送到基站。 接收指示发送功率电平的调整的功率控制调整指示符。 所接收的功率控制调整基于用于一个或多个发送信号的测量信号与干扰+噪声比（SINR）和固定目标SINR阈值来确定，固定目标SINR阈值用于多个功率控制调整 的移动台。

公开(公告)号：US20070183516A1

公开(公告)日：2007-08-09

申请号：US11332643

申请日：2006-01-13

申请人： Pantelis Monogioudis ,  Shirish Nagaraj ,  Harish Viswanathan

发明人： Pantelis Monogioudis ,  Shirish Nagaraj ,  Harish Viswanathan

IPC分类号： H04K1/10

CPC分类号： H04L27/2615 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0048 ,  H04L27/2607

摘要： Disclosed is an Orthogonal Frequency Division Multiple Access (OFDMA) based wireless communications system operable to communicate OFDMA type signals over a set of dynamically assigned orthogonal sub-carriers and Code Division Multiple Access (CDMA) type signals over a set of pre-allocated orthogonal sub-carriers. The OFDMA system utilizes pre-allocated orthogonal sub-carriers for CDMA type signal transmission in order to reduce the number of dynamic assignments of orthogonal sub-carriers in a typical OFDMA system. The OFDMA type signals may be signals processed in accordance with well-known OFDMA techniques, whereas the CDMA type signals may be signals processed in accordance with well-known CDMA and OFDMA techniques. The CDMA type signals may also be processed using a pre-coder incorporating a Discrete Fourier Transformer (DFT) matrix or Identity matrix to reduce the Peak-to-Average Power Ratio across the OFDMA system.

摘要翻译： 公开了一种基于正交频分多址接入（OFDMA）的无线通信系统，其可操作以通过一组预先分配的正交子信道在一组动态分配的正交子载波和码分多址（CDMA）类型信号上传送OFDMA类型信号 载体。 OFDMA系统利用用于CDMA类型信号传输的预分配的正交子载波，以便减少典型OFDMA系统中的正交子载波的动态分配的数量。 OFDMA类型信号可以是根据公知的OFDMA技术处理的信号，而CDMA型信号可以是根据公知的CDMA和OFDMA技术处理的信号。 也可以使用包含离散傅里叶变换器（DFT）矩阵或标识矩阵的预编码器来处理CDMA型信号，以减少OFDMA系统上的峰均功率比。

公开(公告)号：US07054664B2

公开(公告)日：2006-05-30

申请号：US10696930

申请日：2003-10-30

申请人： Shirish Nagaraj

发明人： Shirish Nagaraj

IPC分类号： H04Q7/20

CPC分类号： H04W16/28 ,  H01Q1/246 ,  H01Q25/00

摘要： The disclosed embodiments relate to a system and method for providing user specific beams in a fixed beam network, the fixed beam network comprising a plurality of fixed beams, each of the plurality of fixed beams being defined by a plurality of fixed beam correlation coefficients. The system may comprise a device that computes reception correlation data for a received signal, and a beamformer that is adapted to determine transmission weighting coefficients to be applied to a return signal based on the difference between the reception correlation data and the fixed beam weighting coefficients associated with at least one of the plurality of fixed beams.

摘要翻译： 所公开的实施例涉及用于在固定波束网络中提供用户特定波束的系统和方法，固定波束网络包括多个固定波束，多个固定波束中的每一个由多个固定波束相关系数定义。 该系统可以包括：计算接收信号的接收相关数据的装置;以及波束形成器，其适于基于所述接收相关数据和所述固定波束加权系数之间的差来确定要应用于返回信号的传输加权系数 与多个固定光束中的至少一个固定。

公开(公告)号：US20050096090A1

公开(公告)日：2005-05-05

申请号：US10696930

申请日：2003-10-30

申请人： Shirish Nagaraj

发明人： Shirish Nagaraj

IPC分类号： H01Q1/24 ,  H01Q25/00 ,  H04W16/28 ,  H04Q7/20

CPC分类号： H04W16/28 ,  H01Q1/246 ,  H01Q25/00

摘要： The disclosed embodiments relate to a system and method for providing user specific beams in a fixed beam network, the fixed beam network comprising a plurality of fixed beams, each of the plurality of fixed beams being defined by a plurality of fixed beam correlation coefficients. The system may comprise a device that computes reception correlation data for a received signal, and a beamformer that is adapted to determine transmission weighting coefficients to be applied to a return signal based on the difference between the reception correlation data and the fixed beam weighting coefficients associated with at least one of the plurality of fixed beams.

摘要翻译： 所公开的实施例涉及用于在固定波束网络中提供用户特定波束的系统和方法，固定波束网络包括多个固定波束，多个固定波束中的每一个由多个固定波束相关系数定义。 该系统可以包括：计算接收信号的接收相关数据的装置;以及波束形成器，其适于基于所述接收相关数据和所述固定波束加权系数之间的差来确定要应用于返回信号的传输加权系数 与多个固定光束中的至少一个固定。

公开(公告)号：US09042941B2

公开(公告)日：2015-05-26

申请号：US13524108

申请日：2012-06-15

申请人： Phil Fleming ,  Shirish Nagaraj ,  Alan Rottinghaus ,  Roy Yang ,  Yuda Luz ,  David Baietto ,  Gerald Gutowski

发明人： Phil Fleming ,  Shirish Nagaraj ,  Alan Rottinghaus ,  Roy Yang ,  Yuda Luz ,  David Baietto ,  Gerald Gutowski

IPC分类号： H04M1/00 ,  H04B7/02 ,  H04B7/08 ,  H04B7/06 ,  H04B7/04

CPC分类号： H04B7/024 ,  H04B7/0413 ,  H04B7/0691 ,  H04B7/0874

摘要： A method includes selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment, and processing the transmission from the user equipment at least by using baseband information from the k antennas. An apparatus includes one or more processors and one or more memories including computer program code. The one or more memories and the computer program code are configured to, with the one or more processors, cause the apparatus to perform at least the following: selecting a subset k of N accessible antennas to use to process a transmission received at the N antennas and sent by a user equipment; and processing the transmission from the user equipment at least by using baseband information from the k antennas. Additional apparatus, computer programs, and computer program products are disclosed.

摘要翻译： 一种方法包括：选择N个可访问天线的子集k以用于处理在N个天线处接收并由用户设备发送的传输，以及至少通过使用来自k个天线的基带信息来处理来自用户设备的传输。 一种装置包括一个或多个处理器和包括计算机程序代码的一个或多个存储器。 所述一个或多个存储器和所述计算机程序代码被配置为与所述一个或多个处理器一起使所述装置至少执行以下操作：选择N个可访问天线的子集k以用于处理在N个天线处接收到的传输 并由用户设备发送; 以及至少通过使用来自k个天线的基带信息来处理来自用户设备的传输。 公开了附加装置，计算机程序和计算机程序产品。