专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08391387B2 Multiple transmit antenna interleaver design 有权
标题翻译：多发射天线交织器设计
公开(公告)号：US08391387B2
公开(公告)日：2013-03-05
申请号：US13372703
申请日：2012-02-14
申请人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
发明人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
IPC分类号： H04L27/28
CPC分类号： H04B7/0613 , H04L1/0059 , H04L1/0071 , H04L27/2608
摘要： An arrangement of interleavers allocates bits from an input symbol across sub-symbols transmitted via sub-carriers of multiple orthogonal frequency division multiplex (OFDM) carriers. The input bits are allocated in a fashion to provide separation across subcarriers, and rotation of sub-symbols across the OFDM carriers provides additional robustness in the present of signal path impairments.
摘要翻译：交织器的布置分配来自多个正交频分复用（OFDM）载波的子载波发送的子符号之间的输入符号的比特。以一种方式分配输入比特以提供跨子载波的分离，并且跨OFDM载波的子符号的旋转在信号路径损伤的当前提供额外的鲁棒性。

2. 发明申请

US20130142280A1 MULTIPLE TRANSMIT ANTENNA INTERLEAVER DESIGN 有权
标题翻译：多功能天线交互设计
公开(公告)号：US20130142280A1
公开(公告)日：2013-06-06
申请号：US13754850
申请日：2013-01-30
申请人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
发明人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
IPC分类号： H04B7/06
CPC分类号： H04B7/0613 , H04L1/0059 , H04L1/0071 , H04L27/2608
摘要： An arrangement of interleavers allocates bits from an input symbol across sub-symbols transmitted via sub-carriers of multiple orthogonal frequency division multiplex (OFDM) carriers. The input bits are allocated in a fashion to provide separation across subcarriers, and rotation of sub-symbols across the OFDM carriers provides additional robustness in the present of signal path impairments.
摘要翻译：交织器的布置分配来自多个正交频分复用（OFDM）载波的子载波发送的子符号之间的输入符号的比特。以一种方式分配输入比特以提供跨子载波的分离，并且跨OFDM载波的子符号的旋转在信号路径损伤的当前提供额外的鲁棒性。

3. 发明申请

US20120140613A1 MULTIPLE TRANSMIT ANTENNA INTERLEAVER DESIGN 有权
标题翻译：多功能天线交互设计
公开(公告)号：US20120140613A1
公开(公告)日：2012-06-07
申请号：US13372703
申请日：2012-02-14
申请人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
发明人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
IPC分类号： H04J11/00 , H04B1/69 , H04W84/02
CPC分类号： H04B7/0613 , H04L1/0059 , H04L1/0071 , H04L27/2608
摘要： An arrangement of interleavers allocates bits from an input symbol across sub-symbols transmitted via sub-carriers of multiple orthogonal frequency division multiplex (OFDM) carriers. The input bits are allocated in a fashion to provide separation across subcarriers, and rotation of sub-symbols across the OFDM carriers provides additional robustness in the present of signal path impairments.
摘要翻译：交织器的布置分配来自多个正交频分复用（OFDM）载波的子载波发送的子符号之间的输入符号的比特。以一种方式分配输入比特以提供跨子载波的分离，并且跨OFDM载波的子符号的旋转在信号路径损伤的当前提供额外的鲁棒性。

4. 发明授权

US08139659B2 Multiple transmit antenna interleaver design 有权
标题翻译：多发射天线交织器设计
公开(公告)号：US08139659B2
公开(公告)日：2012-03-20
申请号：US11137259
申请日：2005-05-25
申请人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
发明人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
IPC分类号： H04K1/10
CPC分类号： H04B7/0613 , H04L1/0059 , H04L1/0071 , H04L27/2608
摘要： An arrangement of interleavers allocates bits from an input symbol across sub-symbols transmitted via sub-carriers of multiple orthogonal frequency division multiplex (OFDM) carriers. The input bits are allocated in a fashion to provide separation across subcarriers, and rotation of sub-symbols across the OFDM carriers provides additional robustness in the present of signal path impairments.
摘要翻译：交织器的布置分配来自多个正交频分复用（OFDM）载波的子载波发送的子符号之间的输入符号的比特。以一种方式分配输入比特以提供跨子载波的分离，并且跨OFDM载波的子符号的旋转在信号路径损伤的当前提供额外的鲁棒性。

5. 发明授权

US08654892B2 Multiple transmit antenna interleaver design 有权
标题翻译：多发射天线交织器设计
公开(公告)号：US08654892B2
公开(公告)日：2014-02-18
申请号：US13754850
申请日：2013-01-30
申请人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
发明人： Carlos H. Aldana , Amit G. Bagchi , Min Chuin Hoo
IPC分类号： H04L27/00
CPC分类号： H04B7/0613 , H04L1/0059 , H04L1/0071 , H04L27/2608
摘要： An arrangement of interleavers allocates bits from an input symbol across sub-symbols transmitted via sub-carriers of multiple orthogonal frequency division multiplex (OFDM) carriers. The input bits are allocated in a fashion to provide separation across subcarriers, and rotation of sub-symbols across the OFDM carriers provides additional robustness in the present of signal path impairments.
摘要翻译：交织器的布置分配来自多个正交频分复用（OFDM）载波的子载波发送的子符号之间的输入符号的比特。以一种方式分配输入比特以提供跨子载波的分离，并且跨OFDM载波的子符号的旋转在信号路径损伤的当前提供额外的鲁棒性。

6. 发明授权

US07454183B2 Method and system for antenna selection diversity with dynamic gain control 有权
标题翻译：采用动态增益控制的天线选择分集方法与系统
公开(公告)号：US07454183B2
公开(公告)日：2008-11-18
申请号：US10810462
申请日：2004-03-26
申请人： Rajendra Tushar Moorti , Min Chuin Hoo
发明人： Rajendra Tushar Moorti , Min Chuin Hoo
IPC分类号： H04B7/00
CPC分类号： H01Q21/29 , H04B1/1027
摘要： A method and system for antenna selection diversity with dynamic gain control. A receiver selects a starting antenna and dwells on it until an incoming signal is detected. An AGC is applied on the received signal and an estimate of the received power is determined for the starting antenna. The receiver may dwell on other antennas if the signal in the first antenna is not strong enough for signal processing. The gain of an antenna may be set by the gain and power levels of the previously dwelled-on antennas and/or by a power coupling factor that exists between the antennas in an antenna switch. The receiver switches through the remaining antennas as long as necessary to select at least one of the antennas for signal processing. Dynamically adjusting the gain of antennas in a diversity system provides a more accurate and efficient antenna selection scheme.
摘要翻译：一种采用动态增益控制的天线选择分集方法和系统。接收机选择起始天线并驻留在其上，直到检测到输入信号。对接收的信号应用AGC，并且为起始天线确定接收功率的估计。如果第一天线中的信号不足以用于信号处理，则接收机可以驻留在其他天线上。天线的增益可以由先前驻留的天线的增益和功率电平和/或由天线开关中的天线之间存在的功率耦合因子来设定。只要需要选择至少一个天线进行信号处理，接收机就切换剩余的天线。在分集系统中动态地调整天线的增益提供了更精确和更有效的天线选择方案。

7. 发明申请

US20060146950A1 Reduced complexity detector for multiple-antenna systems 失效
标题翻译：降低多天线系统的复杂度检测器
公开(公告)号：US20060146950A1
公开(公告)日：2006-07-06
申请号：US11027106
申请日：2004-12-31
申请人： Min Chuin Hoo
发明人： Min Chuin Hoo
IPC分类号： H04L1/02
CPC分类号： H04B7/0669
摘要： A reduced-complexity maximum-likelihood detector that provides a high degree of signal detection accuracy while maintaining high processing speeds. A communication system implementing the present invention comprises a plurality of transmit sources operable to transmit a plurality of symbols over a plurality of channels, wherein the detector is operable to receive symbols corresponding to the transmitted symbols. The detector processes the received symbols to obtain initial estimates of the transmitted symbols and then uses the initial estimates to generate a plurality of reduced search sets. The reduced search sets are then used to generate decisions for detecting the transmitted symbols. In various embodiments of the invention, the decisions for detecting the symbols can be hard decisions or soft decisions. Furthermore, in various embodiments of the invention, the initial estimates can be obtained using a plurality of linear equalization techniques, including zero-forcing equalization, minimum-mean-squared-error equalization. The initial estimate can also be obtained by nulling and canceling techniques. In various embodiments of the invention, the data output corresponding to the transmitted symbols can be obtained using a log-likelihood probability ratio. The method and apparatus of the present invention can be applied to any communication system with multiple transmit streams.
摘要翻译：降低复杂度的最大似然检测器，在保持高处理速度的同时提供高度的信号检测精度。实现本发明的通信系统包括多个发射源，其可操作以在多个信道上发送多个符号，其中该检测器可操作以接收对应于所发送符号的符号。检测器处理接收到的符号以获得发送符号的初始估计，然后使用初始估计来生成多个缩减搜索集合。然后，缩小的搜索集合用于产生用于检测所发送的符号的决定。在本发明的各种实施例中，用于检测符号的决定可以是硬判决或软判决。此外，在本发明的各种实施例中，可以使用多种线性均衡技术来获得初始估计，包括强制均衡，最小均方误差均衡。初始估计也可以通过归零和取消技术获得。在本发明的各种实施例中，可以使用对数似然概率比来获得对应于所发送符号的数据输出。本发明的方法和装置可以应用于具有多个发送流的任何通信系统。

8. 发明授权

US08428541B2 Method and system for antenna selection diversity with biasing 有权
标题翻译：用偏置天线选择多样性的方法和系统
公开(公告)号：US08428541B2
公开(公告)日：2013-04-23
申请号：US12725060
申请日：2010-03-16
申请人： Rajendra Tushar Moorti , Min Chuin Hoo , Jason Alexander Trachewsky
发明人： Rajendra Tushar Moorti , Min Chuin Hoo , Jason Alexander Trachewsky
IPC分类号： H04B1/10
CPC分类号： H04B17/0042 , H01Q1/1257 , H04B1/1027 , H04B7/0805 , H04B17/309
摘要： A method for choosing at least one signal path is disclosed and may include determining a power level characteristic for each of a plurality of signal paths. The determined power level characteristic for each of the plurality of signal paths may be modified. At least one of the plurality of signal paths may be selected for receiving a signal. The selecting may be based on at least one of the modified power level characteristics. The method may also include cycling through at least one of the signal paths. The power level characteristic for each of the plurality of signal paths may be biased. The power level characteristic for each of the plurality of signal paths may be increased by a fixed amount.
摘要翻译：公开了用于选择至少一个信号路径的方法，并且可以包括确定多个信号路径中的每一个的功率电平特性。可以修改多个信号路径中的每一个的所确定的功率电平特性。可以选择多个信号路径中的至少一个用于接收信号。该选择可以基于修改的功率电平特性中的至少一个。该方法还可以包括循环通过至少一个信号路径。可以偏置多个信号路径中的每一个的功率电平特性。可以将多个信号路径中的每一个的功率电平特性增加固定量。

9. 发明授权

US07643578B2 Angle estimation for modulated signal 失效
标题翻译：调制信号的角度估计
公开(公告)号：US07643578B2
公开(公告)日：2010-01-05
申请号：US11364637
申请日：2006-02-28
申请人： Min Chuin Hoo , Rajendra Tushar Moorti
发明人： Min Chuin Hoo , Rajendra Tushar Moorti
IPC分类号： H03D3/00
CPC分类号： H04L27/2657 , H04L1/0618 , H04L27/2679 , H04L27/2695
摘要： Angle estimation for modulated signal. A novel compensation technique is presented by which angle estimation may be performed for a modulated signal. More specifically, the angle between a constellation corresponding to a received signal and a constellation corresponding to a received signal may be very efficiently estimated using any one of the possible embodiments corresponding to various aspects of the invention. After this angle has been estimated, the received signal or the expected constellation may be rotated (or de-rotated) to compensate for this angular difference. In doing so, better estimates of the information bits that are demodulated and decoded from the received signal may be made. This approach may be implemented and adapted to any of a wide variety of communication systems including, but not limited to, single-input-multiple-output (SISO), single-input-multiple-output (SIMO), multiple-input-single-output (MISO), multiple-input-multiple-output (MIMO), and even space-time block code (STBC) communication systems or other communication systems.
摘要翻译：调制信号的角度估计。提出了一种新颖的补偿技术，可以对调制信号进行角度估计。更具体地，可以使用对应于本发明的各个方面的任何一个可能的实施例来非常有效地估计对应于接收信号的星座与对应于接收信号的星座之间的角度。在估计该角度之后，接收信号或预期星座可以被旋转（或去旋转）以补偿该角度差。在这样做时，可以对从接收信号进行解调和解码的信息比特的更好估计。这种方法可以被实现和适用于各种通信系统中的任何一种，包括但不限于单输入多输出（SISO），单输入多输出（SIMO），多输入单输出（MISO），多输入多输出（MIMO），甚至空时块码（STBC）通信系统或其他通信系统。

10. 发明授权

US07433432B2 Adaptive detector for multiple-data-path systems 失效
标题翻译：多数据路径系统的自适应检测器
公开(公告)号：US07433432B2
公开(公告)日：2008-10-07
申请号：US11027102
申请日：2004-12-31
申请人： Min Chuin Hoo
发明人： Min Chuin Hoo
IPC分类号： H04L1/02
CPC分类号： H04B7/0891 , H04B7/0413 , H04B7/0848 , H04L1/206 , H04L25/03216 , H04L2025/03426 , H04L2025/03535
摘要： An adaptive, reduced-complexity soft-output maximum-likelihood detector that is operable to process data by adaptively selecting a processing scheme based on a determination of signal quality. The signal quality is derived as a function of the noise, the modulation format, the channel (the communication environment), the transmit signal power and the receive signal power. If the signal quality is low, the signal is processed using a maximum likelihood detector. If, however, the signal quality is high, a simpler sub-optimal detector is used. By estimating the signal quality and choosing an appropriate detection method, the present invention ensures accurate detection of incoming data signals in a MIMO communication system while maintaining the highest possible processing speed.
摘要翻译：一种自适应，低复杂度的软输出最大似然检测器，其可操作以通过基于信号质量的确定自适应地选择处理方案来处理数据。信号质量作为噪声，调制格式，信道（通信环境），发射信号功率和接收信号功率的函数导出。如果信号质量低，则使用最大似然检测器处理信号。然而，如果信号质量高，则使用更简单的次优检测器。通过估计信号质量并选择适当的检测方法，本发明在保持尽可能高的处理速度的同时确保在MIMO通信系统中准确检测输入数据信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式