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

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。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 发明授权

US08811273B2 Turbo HSDPA system 有权
标题翻译： Turbo HSDPA系统
公开(公告)号：US08811273B2
公开(公告)日：2014-08-19
申请号：US11360654
申请日：2006-02-22
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： H04W4/00
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，UE标识）。响应于识别传输，收发器转换到有功功率模式（512）。

9. 发明授权

US08570946B2 RF and baseband means buffering data until after demodulating control 有权
标题翻译： RF和基带意味着缓冲数据直到解调控制
公开(公告)号：US08570946B2
公开(公告)日：2013-10-29
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： H04W4/00
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。

10. 发明授权

US07218692B2 Multi-path interference cancellation for transmit diversity 有权
标题翻译：用于发射分集的多径干扰消除
公开(公告)号：US07218692B2
公开(公告)日：2007-05-15
申请号：US10172843
申请日：2002-06-17
申请人： Anand G. Dabak , Eko N. Onggosanusi , Timothy M. Schmidl , Aris Papasakellariou
发明人： Anand G. Dabak , Eko N. Onggosanusi , Timothy M. Schmidl , Aris Papasakellariou
IPC分类号： H03D1/04
CPC分类号： H04L1/0668 , H04B7/0669
摘要： The present invention provides an apparatus, system and method for removal of interference due to multi-path for multiple transmit antennas (hereinafter referred to as MTA-MPIC) for High Speed Downlink Packet Access (HSDPA) encoded for transmit diversity, such as Space-Time Transmit Diversity (STTD). For a single receive antenna, the signal is received (25) and each multi-path delayed signal is demodulated (21). The demodulation can include long code removal and despreading. Subsequently, each demodulated signal is received by the RAKE receiver (22) for determining the channel estimate and channel normalization for the total HSDPA signal, and for computing space-time decoding for the HSDPA signal. Following the space-time decoding, a data decision is made (23). Next, reconstructed interference signals are generated (24) and combined with the received signal (25). For other user signals, an interference estimate is made from the despreader (322) outputs without applying the RAKE/space-time coding operations.
摘要翻译：本发明提供一种用于消除针对用于发射分集编码的高速下行链路分组接入（HSDPA）的多个发射天线（以下称为MTA-MPIC）的多路径干扰的装置，系统和方法，时间发射分集（STTD）。对于单个接收天线，接收信号（25），并且每个多径延迟信号被解调（21）。解调可以包括长码去除和解扩。随后，RAKE接收机（22）接收每个解调信号，用于确定总HSDPA信号的信道估计和信道标准化，并用于计算HSDPA信号的时空解码。在空时解码之后，进行数据判定（23）。接下来，生成重构的干扰信号（24）并与接收信号（25）组合。对于其他用户信号，在不应用RAKE /空时编码操作的情况下，从解扩器（322）输出进行干扰估计。

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