专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US07302233B2 Multiuser detection for wireless communications systems in the presence of interference 有权
标题翻译：在存在干扰的情况下对无线通信系统进行多用户检测
公开(公告)号：US07302233B2
公开(公告)日：2007-11-27
申请号：US10732978
申请日：2003-12-11
申请人： Eko N. Onggosanusi , Timothy M. Schmidl , Anand G. Dabak
发明人： Eko N. Onggosanusi , Timothy M. Schmidl , Anand G. Dabak
IPC分类号： H04B17/00
CPC分类号： H04L25/0204 , H04L25/0228 , H04L25/0244
摘要： System and method for detecting transmissions from multiple users in a digital wireless communications system in the presence of interference. A preferred embodiment comprises derotating a received signal by a specified amount, determining channel estimates, which can include the determination of the number of users (interferers plus a desired user), and extracting information transmitted by the desired user from the received signal. Successive and parallel multiuser detection schemes are provided for extracting the information from the received signal.
摘要翻译：用于在存在干扰的情况下在数字无线通信系统中检测来自多个用户的传输的系统和方法。优选实施例包括将接收到的信号扭曲指定量，确定信道估计，其可以包括确定用户数量（干扰源加上期望的用户），以及从接收到的信号中提取期望用户发送的信息。提供了连续和并行的多用户检测方案，用于从接收信号中提取信息。

12. 发明授权

US07295636B2 Linear single-antenna interference cancellation receiver 有权
标题翻译：线性单天线干扰消除接收机
公开(公告)号：US07295636B2
公开(公告)日：2007-11-13
申请号：US10747461
申请日：2003-12-29
申请人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl
发明人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl
IPC分类号： H03D1/04
CPC分类号： H04L25/0202
摘要： System and method for interference cancellation in a digital wireless communications system. A preferred embodiment comprises sampling a received signal wherein the received signal is real-valued, rotating the sampled received signal by a specified amount, extracting in-phase and quadrature phase streams from the rotated, sampled received signal, applying an interference suppression filter and combining the filtered streams. The output of the combining operation can be de-correlated (by whitening) if there is excessive correlation.
摘要翻译：数字无线通信系统中干扰消除的系统和方法。优选实施例包括对接收信号进行采样，其中接收到的信号是实值的，将采样的接收信号旋转指定量，从旋转的采样的接收信号中提取同相和正交相位流，应用干扰抑制滤波器和组合过滤的流。如果存在过度的相关性，组合操作的输出可以被去相关（通过白化）。

13. 发明申请

US20110064029A1 DOWNLINK SIGNALING FOR A MULTI-CARRIER COMMUNICATIONS SYSTEM 有权
标题翻译：多载波通信系统的下行信令
公开(公告)号：US20110064029A1
公开(公告)日：2011-03-17
申请号：US12949442
申请日：2010-11-18
申请人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak , Aris Papasakellariou , Jaiganesh Balakrishnan , Yan Hui
发明人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak , Aris Papasakellariou , Jaiganesh Balakrishnan , Yan Hui
IPC分类号： H04W88/02
CPC分类号： H04L1/1845 , H04L1/0026 , H04L1/1671
摘要： System and method for signaling control information in a multi-carrier communications system to transmit data. A preferred embodiment comprises demodulating a first carrier that is used for transmitting a control channel transmission, determining a second carrier that is used for transmitting a data channel transmission based upon the demodulated control channel transmission, and demodulating the second carrier to obtain the data channel transmission. Additionally, designs for multi-carrier receivers are provided.
摘要翻译：用于在多载波通信系统中用于信令控制信息的数据传输的系统和方法。优选实施例包括解调用于发送控制信道传输的第一载波，基于解调的控制信道传输确定用于发送数据信道传输的第二载波，以及解调第二载波以获得数据信道传输。另外，提供了多载波接收机的设计。

14. 发明申请

US20100040172A1 HIGH DATA RATE CLOSED LOOP MIMO SCHEME COMBINING TRANSMIT DIVERSITY AND DATA MULTIPLEXING 有权
标题翻译：高数据速率封闭环路MIMO方案组合传输多样性和数据多路复用
公开(公告)号：US20100040172A1
公开(公告)日：2010-02-18
申请号：US12603127
申请日：2009-10-21
申请人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl
发明人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl
IPC分类号： H04L27/00
CPC分类号： H04B7/0632 , H04B7/0854 , H04B7/0857
摘要： Closed loop multiple-antenna wireless communications system with antenna weights determined by maximizing a composite channel signal-to-interference-plus-noise ratio minimum. Multiplexed symbol streams over subsets of antennas enhance throughout.
摘要翻译：具有天线权重的闭环多天线无线通信系统，其通过最大化复合信道信噪比加噪声比最小来确定。在天线子集上的多路复用符号流增强。

15. 发明授权

US07218894B2 Interferer detection and channel estimation for wireless communications networks 有权
标题翻译：无线通信网络的干扰检测和信道估计
公开(公告)号：US07218894B2
公开(公告)日：2007-05-15
申请号：US10738508
申请日：2003-12-17
申请人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak
发明人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak
IPC分类号： H04B17/00
CPC分类号： H04L25/03006 , H04L25/0228 , H04L25/0244
摘要： System and method for improving performance of digital wireless communications systems in the presence of interferers. A preferred embodiment comprises generating a list of hypotheses from a list of known interferers and timing offsets, receiving a signal transmitted over-the-air, computing an error variance for each hypothesis, and selecting the hypothesis with the lowest error variance. The hypothesis can then be used to extract data from the received signal.
摘要翻译：在存在干扰源的情况下提高数字无线通信系统的性能的系统和方法。优选实施例包括从已知干扰源和定时偏移的列表生成假设列表，接收通过空中传输的信号，计算每个假设的误差方差，以及选择具有最低误差方差的假设。然后可以使用该假设从接收信号中提取数据。

16. 发明授权

US09893851B2 Turbo HSDPA system 有权
公开(公告)号：US09893851B2
公开(公告)日：2018-02-13
申请号：US12410058
申请日：2009-03-24
申请人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak , Aris Papasakellariou
发明人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak , Aris Papasakellariou
IPC分类号： H04L12/16 , H04L5/00 , H04B1/16 , H04W52/02 , H04B7/26 , H04B7/0413
CPC分类号： H04L5/0044 , H04B1/1615 , H04B7/0413 , H04B7/2656 , H04L5/0007 , H04L5/0048 , H04W52/0229 , Y02D70/1244 , Y02D70/1262 , Y02D70/23 , Y02D70/26 , Y02D70/40 , Y02D70/444 , Y02D70/449
摘要： A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from in the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6, UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.

17. 发明授权

US08135057B2 Reconfigurable chip level equalizer architecture 有权
标题翻译：可重构芯片级均衡器架构
公开(公告)号：US08135057B2
公开(公告)日：2012-03-13
申请号：US10699707
申请日：2003-11-03
申请人： Antonio F. Mondragon-Torres , Steven P. Pekarich , Timothy M. Schmidl , Gibong Jeong , Aris Papasakellariou , Anand G. Dabak , Eko N. Onggosanusi
发明人： Antonio F. Mondragon-Torres , Steven P. Pekarich , Timothy M. Schmidl , Gibong Jeong , Aris Papasakellariou , Anand G. Dabak , Eko N. Onggosanusi
IPC分类号： H03H7/30
CPC分类号： H04L25/03006 , H04B1/7103 , H04B1/7117 , H04B2201/7071 , H04L25/03987 , H04L2025/03401 , H04L2025/0342 , H04L2025/03509 , H04L2025/03535
摘要： A reconfigurable chip level equalizer having circuitry that restores signal orthogonality and eliminates channel interference for a wireless transmitted signal. In at least some embodiments, the reconfigurable chip level equalizer comprises two or more adaptive equalizers, a plurality of operational blocks that interconnect the two or more adaptive equalizers, and a control mechanism that configures the two or more adaptive equalizers and operational blocks according to different signal delay profiles.
摘要翻译：具有恢复信号正交性并消除无线发射信号的信道干扰的电路的可重新配置的芯片级均衡器。在至少一些实施例中，可重新配置的芯片级均衡器包括两个或多个自适应均衡器，互连两个或多个自适应均衡器的多个操作块，以及根据不同的配置两个或多个自适应均衡器和操作块的控制机制信号延迟分布。

18. 发明授权

US08054810B2 Interleaver for transmit diversity 有权
标题翻译：交织器用于发射分集
公开(公告)号：US08054810B2
公开(公告)日：2011-11-08
申请号：US10179592
申请日：2002-06-25
申请人： Timothy M. Schmidl , Anand G. Dabak , Eko N. Onggosanusi
发明人： Timothy M. Schmidl , Anand G. Dabak , Eko N. Onggosanusi
IPC分类号： H04J13/00
CPC分类号： H04L1/0071 , H04B7/0604 , H04B7/0669 , H04J13/0048
摘要： The present invention exploits the benefits obtainable from using transmit diversity by designing the size of the interleaver matrix to avoid the case where most or all of the bits in a row are transmitted on a single antenna (110 or 112). This can be accomplished, for example, by specifying the interleaver matrix based on the type of modulation (308) used. A symbol scrambler can also be used to exploit the benefits obtainable from using transmit diversity.
摘要翻译：本发明通过设计交织器矩阵的大小来利用通过使用发射分集获得的优点，以避免在单个天线（110或112）上传输一行中的大多数或全部比特的情况。这可以例如通过基于所使用的调制类型（308）指定交织器矩阵来实现。符号扰频器也可用于利用使用发射分集获得的好处。

19. 发明申请

US20090180563A1 Turbo HSDPA System 审中-公开
标题翻译： Turbo HSDPA系统
公开(公告)号：US20090180563A1
公开(公告)日：2009-07-16
申请号：US12410058
申请日：2009-03-24
申请人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak , Aris Papasakellariou
发明人： Timothy M. Schmidl , Eko N. Onggosanusi , Anand G. Dabak , Aris Papasakellariou
IPC分类号： H04L27/28
CPC分类号： H04L5/0044 , H04B1/1615 , H04B7/0413 , H04B7/2656 , H04L5/0007 , H04L5/0048 , H04W52/0229 , Y02D70/1244 , Y02D70/1262 , Y02D70/23 , Y02D70/26 , Y02D70/40 , Y02D70/444 , Y02D70/449
摘要： A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from in the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6, UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.
摘要翻译：公开了一种用于无线收发机（图1和图2）的省电方法。收发器具有有功功率模式（504）和降低功率模式（510）。收发器以降低功率模式（510）运行，并且在降低功率模式下监视来自远程无线发射机的传输。收发器通过包含在传输中的收发信机标识符来识别来自远程无线发射机的传输（图6，UE标识）。响应于识别传输，收发器转换到有功功率模式（512）。

20. 发明申请

US20080285691A1 Wireless System With Hybrid Automatic Retransmission Request In Interference-Limited Communications 有权
标题翻译：无线系统与干扰有限通信中的混合自动重传请求
公开(公告)号：US20080285691A1
公开(公告)日：2008-11-20
申请号：US11931311
申请日：2007-10-31
申请人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl
发明人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl
IPC分类号： H04B1/10
CPC分类号： H04L25/03038 , H04L1/06 , H04L1/16 , H04L1/1812 , H04L25/0228 , H04L25/067 , H04L2025/0342 , H04L2025/03624 , Y10S370/913
摘要： A wireless receiver (30x) for receiving signals from an interference-limited transmitter in an interference-limited system comprising at least one transmit antenna, wherein the signals comprise a plurality of symbols. The receiver comprises at least one receive antenna (RATx) and collection circuitry (38). The collection circuitry is coupled to the at least one receive antenna and is for collecting a plurality of signal samples from the at least one receive antenna. The plurality of signal samples comprise at least one symbol and interference effects between different symbols communicated from the transmitter to the receiver. The receiver also comprises suppression circuitry (44 or 60), coupled to the collection circuitry, for suppressing the interference effects. The receiver also comprises circuitry (46, 48, 50) for receiving signals from the suppression circuitry and for providing estimates of a group of bits and detection circuitry (52) for detecting an error in a packet that comprises the group of bits. Lastly, the receiver also comprises circuitry (52) for requesting the transmitter to transmit a retransmission of a packet in response to the detection circuitry detecting the error.
摘要翻译：一种用于在包括至少一个发射天线的干扰受限系统中从干扰受限发射机接收信号的无线接收机（30XX），其中信号包括多个符号。接收机包括至少一个接收天线（RAT＆amp; X＆gt;）和收集电路（38）。收集电路耦合到所述至少一个接收天线，并用于从所述至少一个接收天线收集多个信号样本。多个信号样本包括从发射机到接收机之间传送的不同符号之间的至少一个符号和干扰效应。接收机还包括耦合到收集电路的用于抑制干扰效应的抑制电路（44或60）。该接收机还包括用于从抑制电路接收信号并用于提供一组比特的估计和用于检测包括该比特组的分组中的错误的检测电路（52）的电路（46,48,50）。最后，接收机还包括电路（52），用于响应于检测电路检测错误，请求发送器发送分组的重传。

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