公开(公告)号：US09781724B2

公开(公告)日：2017-10-03

申请号：US13983880

申请日：2012-02-03

申请人： Dong Wang ,  Monisha Ghosh ,  Delroy Smith ,  Hongqiang Zhai ,  Maulin Dahyabhai Patel

发明人： Dong Wang ,  Monisha Ghosh ,  Delroy Smith ,  Hongqiang Zhai ,  Maulin Dahyabhai Patel

IPC分类号： H04W72/04 ,  H04W48/06 ,  H04W84/18 ,  A61B5/00

CPC分类号： H04W72/048 ,  A61B5/0024 ,  A61B2560/0209 ,  H04W48/06 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

摘要： A medical system includes one or more MBAN devices that acquire and communicate patient data. The medical system further including one or more medical body area network (MBAN) systems, each MBAN system including the one or more MBAN devices that communicate the patient data with a hub device via short-range wireless communication, the communication of the patient data via the short-range wireless communication being within a predefined spectrum. The hub device receives patient data communicated from the one or more MBAN devices and communicates with a central monitoring station via a longer range communication. The one or more MBAN devices transmit an association request to the hub device on one or more auxiliary channels to associate each MBAN device with the MBAN system, the auxiliary channels being outside the predefined spectrum.

公开(公告)号：US09603024B2

公开(公告)日：2017-03-21

申请号：US13637377

申请日：2011-03-28

申请人： Dong Wang ,  Monisha Ghosh ,  Delroy Smith

发明人： Dong Wang ,  Monisha Ghosh ,  Delroy Smith

IPC分类号： H04W16/14 ,  H04W84/18 ,  H04W72/04

CPC分类号： H04W16/14 ,  H04W4/80 ,  H04W72/0433 ,  H04W72/0453 ,  H04W84/18

摘要： A medical body area network (MBAN) system (10) comprises network nodes (12, 14) intercommunicating via short range wireless communication. A primary user database (46) contains information pertaining to usage of a restricted spectrum by primary users wherein the MBAN systems are secondary users of the restricted spectrum. An electronic key generation engine (44) comprises a digital processing device configured to generate an electronic key (E-key) (50) indicative of whether the MBAN system is allowed to use the restricted spectrum based on content of the primary users database. An MBAN application server (40) is configured to distribute the E-key to the MBAN system. The MBAN system includes a spectrum control sub-module (52) comprising a digital processor configured to select an operating channel or frequency for the short range wireless communication based at least in part on whether the E-key authorizes the MBAN system to use the restricted spectrum.

公开(公告)号：US09178659B2

公开(公告)日：2015-11-03

申请号：US13254464

申请日：2010-02-25

申请人： Vasanth Gaddam ,  Monisha Ghosh

发明人： Vasanth Gaddam ,  Monisha Ghosh

IPC分类号： H04J3/24 ,  H04L1/00 ,  H04L27/26

CPC分类号： H04L27/2607 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/0072

摘要： A method (400) and apparatus for encoding a block-based communication system header. A physical (PHY) layer header and a medium access control (MAC) header of the block-based communication system header are encoded to generate parity bits, wherein the PHY layer header includes at least cyclic prefix (CP) mode bits (S410). Parity bits are appended to the PHY layer header and the MAC layer header to generate a bit vector (S420). The bit vector is divided into at least two data blocks, wherein a first data block includes at least the CP mode bits (S430). A predefined number of tail bits are appended to each data block (S440). The two data blocks are mapped into at least two symbols, wherein the first data block is mapped to a first symbol, such that the first symbol is a first header symbol being transmitted (S450).

摘要翻译： 一种用于编码基于块的通信系统报头的方法（400）和装置。 对基于块的通信系统头部的物理（PHY）层头部和介质访问控制（MAC）头部进行编码以产生奇偶校验位，其中，PHY层头部至少包括循环前缀（CP）模式比特（S410）。 奇偶校验位附加到PHY层报头和MAC层报头以产生位向量（S420）。 比特向量被划分为至少两个数据块，其中第一数据块至少包括CP模式比特（S430）。 每个数据块附加预定数量的尾比特（S440）。 两个数据块被映射到至少两个符号，其中第一数据块被映射到第一符号，使得第一符号是正被发送的第一标题符号（S450）。

公开(公告)号：US09014638B2

公开(公告)日：2015-04-21

申请号：US12280223

申请日：2007-02-20

申请人： Carlos M. Cordeiro ,  Dagnachew Birru ,  Monisha Ghosh

发明人： Carlos M. Cordeiro ,  Dagnachew Birru ,  Monisha Ghosh

IPC分类号： H04B1/00 ,  H04W88/08 ,  H04W16/28 ,  H04W80/00

CPC分类号： H04W72/0453 ,  H04W16/28 ,  H04W80/00 ,  H04W88/08

摘要： A Communications base-station configured to operate as a hub in a wireless network and provide communication services to a set of remote customer devices using a wireless protocol is disclosed. The communications base-station includes an antenna array having a plurality of antennae arranged in a fashion as to enable the antenna array to transmit and receive wireless signals in both a substantially omnidirectional and non-omnidirectional pattern, a physical layer (PHY) device coupled to the antenna array and configured to transmit and receive wireless signals and a media access control (MAC) device coupled to the PHY device and configured to direct the antenna array to concurrently provide beamformed wireless signals to a first customer device and omnidirectional wireless signals to second customer device.

摘要翻译： 公开了一种通信基站，被配置为作为无线网络中的集线器并且使用无线协议向一组远程客户设备提供通信服务。 通信基站包括具有多个天线的天线阵列，天线阵列以能够使天线阵列在基本上全向和非全向模式中发射和接收无线信号的方式布置，物理层（PHY）设备耦合到 所述天线阵列并且被配置为发送和接收无线信号，以及媒体访问控制（MAC）设备，其耦合到所述PHY设备并被配置为引导所述天线阵列同时向第一客户设备提供波束形成的无线信号以及向所述第二客户提供全向无线信号 设备。

公开(公告)号：US08942336B2

公开(公告)日：2015-01-27

申请号：US13319808

申请日：2010-04-23

申请人： Monisha Ghosh ,  Vasanth Gaddam

发明人： Monisha Ghosh ,  Vasanth Gaddam

IPC分类号： H04L7/00 ,  H04N5/44 ,  H04L27/00 ,  H04N21/438 ,  H04N21/61 ,  H04L5/00

CPC分类号： H04N5/4401 ,  H04L5/0007 ,  H04L27/0006 ,  H04N21/438 ,  H04N21/6112

摘要： A method and system is provided for detecting the presence of a DVB (digital video broadcasting) transmission. The method includes receiving an RF (radio frequency) signal in a selected channel (1101); creating signal samples from the received RF signal (1102); creating averaged samples from the signal samples, each averaged sample being an average of a predetermined number of signal samples that are separated by a minimum pilot pattern repetition period from one to the next signal sample (1103); correlating the averaged samples with a reference sequence (1104); and comparing a correlation result with a threshold correlation value (1105).

摘要翻译： 提供了一种用于检测DVB（数字视频广播）传输的存在的方法和系统。 该方法包括在所选择的信道（1101）中接收RF（射频）信号; 从所接收的RF信号（1102）创建信号样本; 从所述信号样本创建平均样本，每个平均样本是由一个到下一个信号样本（1103）的最小导频模式重复周期分隔开的预定数量的信号样本的平均值; 将平均样本与参考序列相关（1104）; 以及将相关结果与阈值相关值（1105）进行比较。

公开(公告)号：US08451768B2

公开(公告)日：2013-05-28

申请号：US11993632

申请日：2006-06-27

申请人： Zinan Lin ,  Monisha Ghosh ,  Elza Erkip

发明人： Zinan Lin ,  Monisha Ghosh ,  Elza Erkip

IPC分类号： H04B7/14

CPC分类号： H04L27/0008 ,  H04B7/15592 ,  H04L1/0003 ,  H04L1/18 ,  H04L2001/0097 ,  Y02D50/10

摘要： A system, method, and apparatus are provided for a source to choose a partner/relay from at least one candidate to transmit at least part of a message from the source to destination. The choice depends on the channel conditions of the source and when the source is experiencing poor channel quality to the destination, the source selects the candidate and the modulation modes of the source and partner/relay such that the frame error rate (FER) of the source is lowered. Otherwise, a modulation mode is selected for each of the source and the partner/relay that most improves the gain in throughput of the source. The present invention applies to modes consisting of binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), and 16-state quadrature amplitude modulation (16-QAM).

公开(公告)号：US08125886B2

公开(公告)日：2012-02-28

申请号：US12096435

申请日：2006-12-05

申请人： Jun Yang ,  Monisha Ghosh

发明人： Jun Yang ,  Monisha Ghosh

IPC分类号： H04J11/00

CPC分类号： H04B7/0671 ,  H04B7/04 ,  H04B7/0697 ,  H04B7/0854 ,  H04L1/0054

摘要： The present invention provides a system (400), device (200, 300), and method (200) for a spatial multiplexing (SMX) transmission scheme combined with symbol spreading and rotation using a pre-determined matrix R, which can greatly improve system performance without requiring additional bandwidth or power consumption under fast Rayleigh flat fading channels or high frequency-selective channels in UWB systems. Because of the lattice-based structure, sphere decoding is employed to reduce the complexity of ML decoding while maintaining the near ML performance. On the other hand, ZF and MMSE receivers can also be used due to the systematic structure at the transmitter.

摘要翻译： 本发明提供了一种用于使用预定矩阵R与符号扩展和旋转组合的空间复用（SMX）传输方案的系统（400），装置（200,300）和方法（200），其可以极大地改善系统 性能，而不需要UWB系统中快速瑞利平坦衰落信道或高频选择性信道的附加带宽或功耗。 由于基于晶格的结构，采用球体解码来降低ML解码的复杂度，同时保持近ML性能。 另一方面，由于发射机的系统结构，也可以使用ZF和MMSE接收机。

公开(公告)号：US20120039321A1

公开(公告)日：2012-02-16

申请号：US13263136

申请日：2010-03-24

申请人： Monisha Ghosh ,  Vasanth R. Gaddam

发明人： Monisha Ghosh ,  Vasanth R. Gaddam

IPC分类号： H04W4/00 ,  H04W56/00

CPC分类号： H04L1/0025 ,  H04B7/0613 ,  H04L7/042

摘要： A method (200) for signaling a transmission mode in a wireless communication networks comprises selecting a signature sequence corresponding to the transmission mode of a transmitting device (S210); forming, for each antenna in the transmitting device, a synchronization field based on the selected signature sequence, wherein the synchronization field is included in a preamble (S220); and transmitting, from each antenna in the transmitting device, the data frame that comprises the preamble.

摘要翻译： 一种用于在无线通信网络中发送传输模式的信令的方法（200）包括：选择与传输设备的传输模式对应的签名序列（S210）; 针对所述发送装置中的每个天线形成基于所选择的签名序列的同步字段，其中所述同步字段包括在前导码中（S220）; 并且从发送装置中的每个天线发送包括前导码的数据帧。

公开(公告)号：US20120013508A1

公开(公告)日：2012-01-19

申请号：US13132340

申请日：2009-11-16

申请人： Xingkai Bao ,  Sushanta Das ,  Monisha Ghosh

发明人： Xingkai Bao ,  Sushanta Das ,  Monisha Ghosh

IPC分类号： G01S5/02

CPC分类号： G01S5/0263 ,  H05B37/0272

摘要： The invention relates to a system and method for localization positioning in lighting systems. At least two of a Time Difference of Arrival (TDOA), Angle of Arrival (AOA), Received Signal Strength Index (RSSI) and a Position Estimation Algorithm with unified TDOA and RSSI are used to obtain localization positioning. The schemes introduce a maximum-likelihood estimation strategy incorporating a partial derivative matrix for each lighting unit using at least two reference nodes in order to achieve higher accuracy.

摘要翻译： 本发明涉及一种用于照明系统中定位定位的系统和方法。 使用统一TDOA和RSSI的到达时差（TDOA），到达角（AOA），接收信号强度指数（RSSI）和位置估计算法中至少有两个获得定位。 这些方案引入了使用至少两个参考节点并入每个照明单元的偏导数矩阵的最大似然估计策略，以便实现更高的精度。

公开(公告)号：US08050349B2

公开(公告)日：2011-11-01

申请号：US11913662

申请日：2006-05-03

申请人： Monisha Ghosh ,  Pen Li

发明人： Monisha Ghosh ,  Pen Li

IPC分类号： H04L1/02 ,  H04L27/28

CPC分类号： H04L1/0668 ,  H04L1/0071 ,  H04L1/0625 ,  H04L27/2602

摘要： The present invention, generally speaking, provides interleavers and methods of interleaving that satisfy the need for backward compatibility while effectively addressing competing design objectives. In accordance with one aspect of the invention, data is transmitted using a number of transmit antennas greater than an expected number of receive antennas. At least one pair of transmit antennas (ant′—1, ant′_N) is formed, and multiple second data streams (610a, 610u) are formed from a first data stream, successive bits in said first data stream being assigned to different ones of said second data streams. Block interleaving of multiple respective ones of said second data streams is individually performed (611a, 611u). During successive transmission intervals (617), the pair of transmit antennas is used to transmit a pair of data symbols taken from different ones of said second data streams, followed by an equivalent transformed pair of data symbols.

摘要翻译： 本发明一般地提供交织器和交织方法，其满足对向兼容性的需要，同时有效地解决竞争设计目标。 根据本发明的一个方面，使用大于预期数量的接收天线的多个发射天线来发送数据。 形成至少一对发射天线（ant'-1，ant'_N），并且从第一数据流形成多个第二数据流（610a，610u），所述第一数据流中的连续比特被分配给不同的 的所述第二数据流。 单独执行多个相应的所述第二数据流的块交织（611a，611u）。 在连续发送间隔（617）期间，使用一对发射天线来发送从不同的所述第二数据流中取出的一对数据符号，随后是等效的变换数据符号对。