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1. 发明授权

US07184457B2 Spread spectrum path estimation 有权
标题翻译：扩展频谱路径估计
公开(公告)号：US07184457B2
公开(公告)日：2007-02-27
申请号：US09792123
申请日：2001-02-23
申请人： Timothy M. Schmidl , Srinath Hosur , Anand Dabak , Aris Papasakellariou
发明人： Timothy M. Schmidl , Srinath Hosur , Anand Dabak , Aris Papasakellariou
IPC分类号： H04B1/00
CPC分类号： H04B1/7075 , H04B1/70757 , H04B1/709 , H04B1/7117 , H04B2001/70706
摘要： Spread spectrum rake receiver estimates number of paths within a chip interval and assigns corresponding fingers. Cross-correlation matrix eigenvalues or direct BER estimates for differing numbers of fingers determine whether one or two fingers assigned to the group of paths within a chip.
摘要翻译：扩展频谱耙式接收机估计码片间隔内的路径数，并分配相应的手指。用于不同数量手指的互相关矩阵特征值或直接BER估计确定分配给芯片内的一组路径的一个或两个手指。

2. 发明申请

US20100124297A1 Receiving a Pilot Design and Channel Estimation 有权
标题翻译：接收导频设计和信道估计
公开(公告)号：US20100124297A1
公开(公告)日：2010-05-20
申请号：US12639422
申请日：2009-12-16
申请人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
发明人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
IPC分类号： H04L27/28 , H04L27/00
CPC分类号： H04L1/06 , H04B7/0452 , H04B7/12 , H04L5/0007 , H04L5/0048 , H04L25/0226
摘要： Embodiments of the invention provide a receiver in an OFDM based communication system adapted to perform channel estimation using a received reference signal transmitted from at least one antenna, said reference signal being substantially located into two OFDM symbols of a transmission time interval comprising of more than two OFDM symbols. A method of generating pilot structure, the pilot structure provides information to an apparatus for channel estimation in the OFDM system with a transmission time interval of seven OFDM symbols. The pilot structure comprising pilot signals from at least one transmitting antenna located in various OFDM symbols of the transmission time interval.
摘要翻译：本发明的实施例提供了一种基于OFDM的通信系统中的接收机，其适于使用从至少一个天线发送的接收到的参考信号来执行信道估计，所述参考信号基本上位于包含两个以上的传输时间间隔的两个OFDM符号中 OFDM符号。一种生成导频结构的方法，导频结构向具有7个OFDM符号的传输时间间隔的OFDM系统中的信道估计装置提供信息。所述导频结构包括来自位于所述传输时间间隔的各种OFDM符号中的至少一个发射天线的导频信号。

3. 发明授权

US09147193B2 Method for transmission of unicast control in broadcast/multicast transmission time intervals 有权
标题翻译：在广播/组播传输时间间隔内传输单播控制的方法
公开(公告)号：US09147193B2
公开(公告)日：2015-09-29
申请号：US13446492
申请日：2012-04-13
申请人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
发明人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
IPC分类号： H04J3/00 , G06Q30/00 , H04W72/00 , G06Q20/10 , G06Q40/00 , H04N21/6405 , H04L29/06 , H04W72/04 , H04N21/236 , H04N21/6408 , H04N21/61
CPC分类号： H04W72/1289 , G06Q20/10 , G06Q30/00 , G06Q40/00 , H04L5/0048 , H04L5/0053 , H04L12/18 , H04L27/2601 , H04L27/2602 , H04N21/437 , H04N21/44209 , H04W52/322 , H04W72/005 , H04W72/1205 , H04W72/14
摘要： Embodiments of the invention provide methods for maximizing the bandwidth utilization in the uplink of a communication system supporting time division multiplexing between unicast and multicast/broadcast communication modes during transmission time intervals in the downlink of a communication system. This is accomplished by multiplexing at least unicast control signaling for UL scheduling assignments in TTIs supporting the multicast/broadcast communication mode. Moreover, multiplexing of unicast control signaling can also be accomplished by splitting a symbol of the multicast/broadcast TTI into two shorter symbols with the first of these two shorter symbols carrying at least unicast control signaling and the second of these shorter symbols carrying multicast/broadcast signaling.
摘要翻译：本发明的实施例提供了一种用于在通信系统的下行链路中的传输时间间隔期间最大化在单播和多播/广播通信模式之间支持时分复用的通信系统的上行链路中的带宽利用率的方法。这通过在支持多播/广播通信模式的TTI中多路复用至少用于UL调度分配的单播控制信令来实现。此外，单播控制信令的复用也可以通过将多播/广播TTI的符号分成两个较短的符号来实现，其中这两个较短的符号中的第一个携带至少单播控制信令，并且这些较短的符号中的第二个携带多播/广播信令。

4. 发明授权

US07929416B2 Receiving a pilot design and channel estimation 有权
标题翻译：接收试点设计和信道估计
公开(公告)号：US07929416B2
公开(公告)日：2011-04-19
申请号：US12639422
申请日：2009-12-16
申请人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
发明人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
IPC分类号： H04J11/00
CPC分类号： H04L1/06 , H04B7/0452 , H04B7/12 , H04L5/0007 , H04L5/0048 , H04L25/0226
摘要： A receiver in an OFDM based communication system is adapted to perform channel estimation using a received reference signal transmitted from at least one antenna The reference signal is substantially located into at least two OFDM symbols of a transmission time interval comprising of more than two OFDM symbols. A power level of said reference signal is divided into said non-consecutive OFDM symbols in said transmission time interval and adapted to use the reference signal located in a first OFDM symbol in succeeding transmission time intervals in addition to the reference symbols in a current transmission time interval and a preceding transmission time interval.
摘要翻译：基于OFDM的通信系统中的接收机适于使用从至少一个天线发射的接收的参考信号来执行信道估计。参考信号基本上位于包括多于两个OFDM符号的传输时间间隔的至少两个OFDM符号中。所述参考信号的功率电平在所述传输时间间隔中被划分为所述非连续OFDM符号，并且适于在当前传输时间中除了参考符号之外，使用位于后续传输时间间隔中的第一OFDM符号中的参考信号间隔和之前的传输时间间隔。

5. 发明申请

US20120195246A1 Method for Transmission of Unicast Control in Broadcast/Multicast Transmission Time Intervals 有权
标题翻译：在广播/组播传输时间间隔内传输单播控制的方法
公开(公告)号：US20120195246A1
公开(公告)日：2012-08-02
申请号：US13446492
申请日：2012-04-13
申请人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
发明人： Aris Papasakellariou , Timothy M. Schmidl , Eko N. Onggosanusi , Anand Dabak
IPC分类号： H04W4/06 , H04W52/02
CPC分类号： H04W72/1289 , G06Q20/10 , G06Q30/00 , G06Q40/00 , H04L5/0048 , H04L5/0053 , H04L12/18 , H04L27/2601 , H04L27/2602 , H04N21/437 , H04N21/44209 , H04W52/322 , H04W72/005 , H04W72/1205 , H04W72/14
摘要： Embodiments of the invention provide methods for maximizing the bandwidth utilization in the uplink of a communication system supporting time division multiplexing between unicast and multicast/broadcast communication modes during transmission time intervals in the downlink of a communication system. This is accomplished by multiplexing at least unicast control signaling for UL scheduling assignments in TTIs supporting the multicast/broadcast communication mode. Moreover, multiplexing of unicast control signaling can also be accomplished by splitting a symbol of the multicast/broadcast TTI into two shorter symbols with the first of these two shorter symbols carrying at least unicast control signaling and the second of these shorter symbols carrying multicast/broadcast signaling.
摘要翻译：本发明的实施例提供了一种用于在通信系统的下行链路中的传输时间间隔期间最大化在单播和多播/广播通信模式之间支持时分复用的通信系统的上行链路中的带宽利用率的方法。这通过在支持多播/广播通信模式的TTI中多路复用至少用于UL调度分配的单播控制信令来实现。此外，单播控制信令的复用也可以通过将多播/广播TTI的符号分成两个较短的符号来实现，其中这两个较短的符号中的第一个携带至少单播控制信令，并且这些较短的符号中的第二个携带多播/广播信令。

6. 发明申请

US20090180416A1 Turbo HSDPA System 审中-公开
标题翻译： Turbo HSDPA系统
公开(公告)号：US20090180416A1
公开(公告)日：2009-07-16
申请号：US12410025
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： G08C17/02
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 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的UE标识）。响应于识别传输，收发器转换到有功功率模式（512）。

7. 发明授权

US07561618B2 Reconfigurable chip level equalizer architecture for multiple antenna systems 有权
标题翻译：用于多天线系统的可重构芯片级均衡器架构
公开(公告)号：US07561618B2
公开(公告)日：2009-07-14
申请号：US11105755
申请日：2005-04-14
申请人： Antonio F. Mondragon-Torres , Steven P. Pekarich , Timothy M. Schmidl , Aris Papasakellariou , Anand G. Dabak , Eko N. Onggosanusi , Manish Goel
发明人： Antonio F. Mondragon-Torres , Steven P. Pekarich , Timothy M. Schmidl , Aris Papasakellariou , Anand G. Dabak , Eko N. Onggosanusi , Manish Goel
IPC分类号： H03H7/30
CPC分类号： H04L25/03019 , H04B1/7105 , H04B1/7117 , H04B7/0837 , H04L2025/03509 , H04L2025/03566 , H04L2025/03617
摘要： A system comprising a plurality of adaptive equalizers adapted to couple to a plurality of receive antennas, each of the antennas capable of receiving a multipath delay profile estimate (MDPE), control logic interconnecting at least some of the adaptive equalizers, and a control mechanism that, according to different MDPEs, configures at least some of the adaptive equalizers and control logic.
摘要翻译：一种系统，包括适于耦合到多个接收天线的多个自适应均衡器，所述天线中的每一个能够接收多径延迟分布估计（MDPE），互连所述自适应均衡器中的至少一些的控制逻辑，以及控制机制，根据不同的MDPE，配置至少一些自适应均衡器和控制逻辑。

8. 发明授权

US07859985B2 Control on at least one frequency selecting data carrier frequencies 有权
标题翻译：控制至少一个频率选择数据载波频率
公开(公告)号：US07859985B2
公开(公告)日：2010-12-28
申请号：US11085305
申请日：2005-03-21
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： H04J11/00 , H04B7/216 , H04B1/00 , H04L27/00
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。

9. 发明授权

US08553730B2 Short and long training fields 有权
标题翻译：短期和长期的培训领域
公开(公告)号：US08553730B2
公开(公告)日：2013-10-08
申请号：US12868397
申请日：2010-08-25
申请人： Timothy M. Schmidl , Anuj Batra , Srinath Hosur
发明人： Timothy M. Schmidl , Anuj Batra , Srinath Hosur
IPC分类号： H04J3/06
CPC分类号： H04W56/001 , H04L27/2613 , H04L27/2634 , H04W4/80
摘要： A method includes receiving a first plurality of symbols comprising complex portions. The method further includes applying conjugate symmetry to the first plurality of symbols, producing a second plurality of symbols comprising no complex portions. The method further includes transforming the second plurality of symbols using an inverse fast Fourier transform, producing a third plurality of symbols. The method further includes interpolating the third plurality of symbols, generating a short training field comprising at least one real portion of the third plurality of symbols, generating a long training field comprising at least one real portion of the third plurality of symbols, and transmitting the short training field and long training field in a WPAN.
摘要翻译：一种方法包括接收包括复数部分的第一多个符号。该方法还包括将共轭对称性应用于第一多个符号，产生不包含复杂部分的第二多个符号。该方法还包括使用快速傅里叶反变换来变换第二多个符号，产生第三个多个符号。该方法还包括内插第三多个符号，产生包括第三多个符号的至少一个实部的短训练场，产生包括第三多个符号的至少一个实部的长训练场，并发送短期培训领域和长期培训领域的WPAN。

10. 发明授权

US08391228B2 PHY layer PPDU construction for body area network (BAN) devices 有权
标题翻译：物理层PPDU构建体区域网（BAN）设备
公开(公告)号：US08391228B2
公开(公告)日：2013-03-05
申请号：US12760513
申请日：2010-04-14
申请人： Anuj Batra , Timothy M. Schmidl , Srinath Hosur , June Chul Roh
发明人： Anuj Batra , Timothy M. Schmidl , Srinath Hosur , June Chul Roh
IPC分类号： H04W4/00 , H04W72/04
CPC分类号： H04W4/80 , H04L27/18 , H04L27/20 , H04L27/2675 , H04L69/22 , H04W52/36 , H04W52/367 , H04W72/0453 , H04W74/0816
摘要： In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment based on a constant symbol rate for BAN packet transmissions and based on M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK modulation. The PHY layer is configured to construct a physical-layer service data unit (PSDU) based on a concatenate block, an insert shortened bits block, a Bose, Ray-Chaudhuri, Hocquenghem (BCH) encoder, a remove shortened bits block, an add pad bits block, a spreader, a bit interleaver, a scrambler, and a symbol mapper.
摘要翻译：在至少一些实施例中，通信设备包括具有物理（PHY）层的收发器。基于用于BAN分组传输的恒定符号速率并且基于M-ary PSK，差分M-ary PSK或旋转差分M-ary PSK调制，PHY层被配置用于在有限多径环境中的体区域网络（BAN）操作。 PHY层被配置为基于级联块，插入缩短的比特块，Bose，Ray-Chaudhuri，Hocquenghem（BCH）编码器，移除缩短的比特块，加法来构造物理层服务数据单元（PSDU）填充比特块，扩展器，比特交织器，加扰器和符号映射器。

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