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1. 发明申请

US20050111597A1 Space time block coded transmit antenna diversity for WCDMA 有权
标题翻译：用于WCDMA的时空块编码发射天线分集
公开(公告)号：US20050111597A1
公开(公告)日：2005-05-26
申请号：US10659906
申请日：2003-09-11
申请人： Anand Dabak , Rohit Negi
发明人： Anand Dabak , Rohit Negi
IPC分类号： H04J13/00 , H04B7/02 , H04B7/06 , H04B7/26 , H04L1/00 , H04L1/02 , H04L1/06
CPC分类号： H04B7/0669 , H04L1/0065 , H04L1/0071 , H04L1/0618 , H04L1/0631
摘要： A mobile communication system is designed with an input circuit coupled to receive a first plurality of signals (rj(i+τj), i=0−N−1) during a first time (T0-T1) from an external source and coupled to receive a second plurality of signals (rj(i+τj), i=N−2N−1) during a second time (T1-T2) from the external source. The input circuit receives each of the first and second plurality of signals along respective first and second paths (j). The input circuit produces a first input signal (Rj1) and a second input signal (Rj2) from the respective first and second plurality of signals. A correction circuit is coupled to receive a first estimate signal (αj1), a second estimate signal (αj2) and the first and second input signals. The correction circuit produces a first symbol estimate ({overscore (S)}1) in response to the first and second estimate signals and the first and second input signals. The correction circuit produces a second symbol estimate ({overscore (S)}2) in response to the first and second estimate signals and the first and second input signals.
摘要翻译：移动通信系统被设计成具有耦合以接收第一多个信号（i = 0-N-1）的第一多个信号的输入电路，在来自外部源的第一时间（T 0 -T 1）期间，并且被耦合以接收第二多个信号（r 1，j 2，...，i = N-2N-1）在来自外部源的第二时间（T 1 -T 2）期间。输入电路沿着相应的第一和第二路径（j）接收第一和第二多个信号中的每一个。输入电路产生第一输入信号（R SUB），第二输入信号（R SUB）和第二输入信号）从相应的第一和第二多个信号。耦合校正电路以接收第一估计信号（第一估计信号），第二估计信号（α2，j 2， / SUP>）和第一和第二输入信号。所述校正电路响应于所述第一和第二估计信号以及所述第一和第二输入信号产生第一符号估计（{overcore（S SUB> 1）），所述校正电路产生第二符号估计（{overscore （S SUB2）响应于第一和第二估计信号以及第一和第二输入信号。

2. 发明授权

US08175021B2 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：US08175021B2
公开(公告)日：2012-05-08
申请号：US11554959
申请日：2006-10-31
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： H04H20/71
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，单播控制信令的多路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组播/广播信令。

3. 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。

4. 发明申请

US20070104151A1 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：US20070104151A1
公开(公告)日：2007-05-10
申请号：US11554959
申请日：2006-10-31
申请人： Aris Papasakellariou , Timothy Schmidl , Eko Onggosanusi , Anand Dabak
发明人： Aris Papasakellariou , Timothy Schmidl , Eko Onggosanusi , Anand Dabak
IPC分类号： H04B7/216
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。

5. 发明申请

US20060286995A1 Slow Uplink Power Control 有权
标题翻译：缓慢上行电源控制
公开(公告)号：US20060286995A1
公开(公告)日：2006-12-21
申请号：US11425202
申请日：2006-06-20
申请人： Eko Onggosanusi , Timothy Schmidl , Aris Papasakellariou , Anand Dabak
发明人： Eko Onggosanusi , Timothy Schmidl , Aris Papasakellariou , Anand Dabak
IPC分类号： H04B7/00 , H04Q7/20
CPC分类号： H04W52/146 , H04W52/225 , H04W52/241 , H04W52/242
摘要： Embodiments of the invention provide embodiments of the invention provide and method, network entity and user equipment for slow uplink power control of user equipment in a wireless communication system by responding to a long term control metric that is derived from an uplink channel metric over a plurality of transmission instances and a set of performance criteria. A method for slow uplink power control in accordance with and embodiment of the invention measures at least one uplink channel metric for user equipment and then determines an appropriate transmit power for the user equipment by using a control metric derived from the uplink channel metric corresponding to a plurality of transmission instances for the user equipment.
摘要翻译：本发明的实施例提供和方法，网络实体和用户设备，用于通过响应从多个上行链路信道度量导出的长期控制度量，在无线通信系统中对用户设备进行慢速上行链路功率控制的传输实例和一组性能标准。根据本发明的实施例的用于慢速上行链路功率控制的方法测量用户设备的至少一个上行链路信道度量，然后通过使用从与对应于上行链路信道度量的上行链路信道度量导出的控制度量来确定用户设备的适当发射功率用户设备的多个传输实例。

6. 发明授权

US07133435B2 Interference cancellation system and method 有权
公开(公告)号：US07133435B2
公开(公告)日：2006-11-07
申请号：US10176156
申请日：2002-06-20
申请人： Aris Papasakellariou , Anand Dabak , Timothy Schmidl , Eko Onggosanusi
发明人： Aris Papasakellariou , Anand Dabak , Timothy Schmidl , Eko Onggosanusi
IPC分类号： H04B1/69 , H04B1/713
CPC分类号： H04B1/71072 , H04B1/71075
摘要： A method for reducing multiple access interference (MAI) in a code division multiple access (CDMA) spread spectrum receiver assigned a number of codes which also despreads the received signal with the remaining codes of the same spreading factor. For forward link transmission with orthogonal codes, as in 3GPP and 3GPP2, interferers using larger spreading factors than the one used by the referenced mobile will have codes that are formed from the orthogonal codes of the same spreading factor as the multicodes corresponding to the referenced mobile. As a consequence, in a multipath environment, the output of a despreader using any of these remaining orthogonal codes will provide an estimate of the composite interference attributed to signals, if any, using codes that partly comprise the corresponding orthogonal code. No decisions are made for the previous despreader's output because it corresponds to a sum of interferers with unknown powers. However, this soft output can be re-spread and subtracted from the received signal prior to despreading, thereby removing the corresponding composite interference. This can significantly improve the performance of a receiver performing interference cancellation of both assigned and interfering signals, especially when the interfering signals have a substantial total power.

7. 发明申请

US20060222099A1 Channel length estimation and accurate FFT window placement for high-mobility OFDM receivers in single frequency networks 有权
标题翻译：信道长度估计和单频网络中高移动性OFDM接收机的精确FFT窗口布局
公开(公告)号：US20060222099A1
公开(公告)日：2006-10-05
申请号：US11389354
申请日：2006-03-23
申请人： Badri Varadarajan , Anand Dabak , Charles Sestok , Srinath Hosur
发明人： Badri Varadarajan , Anand Dabak , Charles Sestok , Srinath Hosur
IPC分类号： H04L27/06 , H04K1/10
CPC分类号： H04L25/0216 , H04L27/2662 , H04L2025/03414
摘要： A method of estimating a channel length (304) in a wireless receiver is disclosed. The receiver receives a signal (122) from a remote transmitter. The receiver selects a plurality (K) of different candidate channel lengths and determines a respective criterion value (402) of the signal for each of the plurality of different candidate channel lengths. The receiver selects a channel length (410) from the plurality of different candidate channel lengths in response to the respective criterion value (404).
摘要翻译：公开了一种在无线接收机中估计信道长度（304）的方法。接收机从远程发射机接收信号（122）。接收机选择不同候选信道长度的多个（K），并且为多个不同候选信道长度中的每一个确定信号的相应标准值（402）。接收机响应于各自的标准值（404）从多个不同候选信道长度中选择一个信道长度（410）。

8. 发明申请

US20060029144A1 Frequency domain equalization 有权
标题翻译：频域均衡
公开(公告)号：US20060029144A1
公开(公告)日：2006-02-09
申请号：US11184680
申请日：2005-07-19
申请人： Anand Dabak , Eko Onggosanusi
发明人： Anand Dabak , Eko Onggosanusi
IPC分类号： H04L1/02 , H04B1/10
CPC分类号： H04L25/03159 , H04L2025/03375 , H04L2025/03426 , H04L2025/03522
摘要： A radio receiver 102 is provided. The radio receiver 102 comprises one or more data Fast Fourier Transformers, each data Fast Fourier Transformer operable to perform a Fast Fourier Transform on an input data block, one or more impulse response Fast Fourier Transformers, each impulse response Fast Fourier Transformer operable to perform a Fast Fourier Transform on a channel impulse response, one or more multiplier components operable to multiply a term of the output of one of the data Fast Fourier Transformers by a term of the output of one of the impulse response Fast Fourier Transformers, and one or more Inverse Fast Fourier Transformers, each Inverse Fast Fourier Transformer operable to perform an Inverse Fast Fourier Transform based on an output of one or more of the multipliers.
摘要翻译：提供无线电接收机102。无线电接收器102包括一个或多个数据快速傅立叶变换器，每个数据快速傅立叶变换器可操作以对输入数据块执行快速傅里叶变换，一个或多个脉冲响应快速傅立叶变换器，每个脉冲响应快速傅立叶变换器可操作以执行对信道脉冲响应的快速傅立叶变换，一个或多个乘法器组件，可操作以将数据快速傅里叶变换器之一的输出的项乘以脉冲响应快速傅立叶变换器之一的输出项，以及一个或多个快速傅里叶逆变换器，每个快速傅里叶逆变换器可操作以基于一个或多个乘法器的输出执行快速傅立叶逆变换。

9. 发明申请

US20050245199A1 Scalable, cooperative, wireless networking for mobile connectivity 审中-公开
标题翻译：可扩展的，协作的，无线网络的移动连接
公开(公告)号：US20050245199A1
公开(公告)日：2005-11-03
申请号：US11062729
申请日：2005-02-22
申请人： Anuj Batra , Nathan Belk , Anand Dabak , Michael DiRenzo , Manish Goel , Jin-Meng Ho , Srinath Hosur , Xiaolin Lu , David Magee , Donald Shaver , Hirohisa Yamaguchi
发明人： Anuj Batra , Nathan Belk , Anand Dabak , Michael DiRenzo , Manish Goel , Jin-Meng Ho , Srinath Hosur , Xiaolin Lu , David Magee , Donald Shaver , Hirohisa Yamaguchi
IPC分类号： H04B1/38
摘要： A wireless transceiver 10 is provided that includes a configurable analog component 14 and a controller portion 18. The configurable analog component 14 is operable to receive an input radio frequency signal and to transmit the output radio frequency signal. The controller portion 18 is operable to promote adjustment of a bandwidth of the configurable analog component 14 from at least a first bandwidth to a second bandwidth.
摘要翻译：提供了一种无线收发机10，其包括可配置的模拟组件14和控制器部分18。可配置模拟组件14可操作以接收输入射频信号并传输输出射频信号。控制器部分18可操作以促进将可配置模拟组件14的带宽从至少第一带宽调整到第二带宽。

10. 发明申请

US20050207367A1 Method for channel quality indicator computation and feedback in a multi-carrier communications system 审中-公开
标题翻译：多载波通信系统中信道质量指标计算和反馈的方法
公开(公告)号：US20050207367A1
公开(公告)日：2005-09-22
申请号：US11085590
申请日：2005-03-21
申请人： Eko Onggosanusi , Anand Dabak , Timothy Schmidl , Aris Papasakellariou , Yan Hui
发明人： Eko Onggosanusi , Anand Dabak , Timothy Schmidl , Aris Papasakellariou , Yan Hui
IPC分类号： H04J1/16 , H04J3/14 , H04L5/02 , H04L27/26
CPC分类号： H04L1/0003 , H04L1/0009 , H04L5/023 , H04L27/2608 , H04W24/10 , H04W72/1231
摘要： Method for computing and transmitting channel quality information in a multi-carrier communications system. A preferred embodiment comprises receiving a transmission from a transmitter, wherein the transmission occurs over a plurality of carriers, measuring a channel condition for each carrier in a plurality of carriers, computing a channel quality indicator based upon the measured channel condition, and providing the channel quality indicator to the transmitter. The channel quality indicator can be used at the transmitter to schedule transmissions to various users in the multi-carrier communications system to maximize utilization of the carriers as well as overall network performance.
摘要翻译：用于在多载波通信系统中计算和发送信道质量信息的方法。优选实施例包括从发射机接收传输，其中所述传输发生在多个载波上，测量多个载波中的每个载波的信道状况，基于测量的信道状况计算信道质量指示符，以及提供信道质量指示器到发射机。可以在发射机处使用信道质量指示符来调度对多载波通信系统中的各种用户的传输，以最大限度地利用载波以及整体网络性能。

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