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31. 发明申请

US20070226287A1 MIMO RECEIVER AND METHOD FOR BEAMFORMING USING CORDIC OPERATIONS 有权
标题翻译： MIMO接收机和使用CORDIC操作进行波束成形的方法
公开(公告)号：US20070226287A1
公开(公告)日：2007-09-27
申请号：US11618122
申请日：2006-12-29
申请人： Xintian E. Lin , Qinghua Li , Tein Yow Yu
发明人： Xintian E. Lin , Qinghua Li , Tein Yow Yu
IPC分类号： G06F7/38
CPC分类号： G06F7/4818 , G06F17/16 , H04B7/0478 , H04B7/0663 , H04L25/0248
摘要： Embodiments of a MIMO receiver and method for beamforming using CORDIC operations are generally described herein. Other embodiments may be described and claimed. In some embodiments, complex singular value decomposition (SVD) operations are performed on a channel matrix using CORDIC operations to generate vector elements of a beamforming matrix. An inner product of a first of the vector elements and each of a plurality of stored codewords is computed using CORDIC operations. A recursive dimensional reduction on the beamforming matrix is performed based on the quantized first vector element is performed using CORDIC operations. In some embodiments, the MIMO receiver includes reprogrammable CORDIC circuitry.
摘要翻译： MIMO接收机的实施例和使用CORDIC操作的波束成形的方法在这里通常被描述。可以描述和要求保护其他实施例。在一些实施例中，使用CORDIC操作在信道矩阵上执行复数奇异值分解（SVD）操作，以生成波束形成矩阵的矢量元素。使用CORDIC操作来计算第一矢量元素和多个存储码字中的每一个的内积。基于使用CORDIC操作执行量化的第一向量元素，执行波束成形矩阵的递归尺寸减小。在一些实施例中，MIMO接收机包括可编程CORDIC电路。

32. 发明授权

US07263147B2 Low bit error rate antenna switch for wireless communications 失效
标题翻译：用于无线通信的低误码率天线开关
公开(公告)号：US07263147B2
公开(公告)日：2007-08-28
申请号：US10684850
申请日：2003-10-14
申请人： Qinghua Li , Xintian E. Lin , Minnie Ho
发明人： Qinghua Li , Xintian E. Lin , Minnie Ho
IPC分类号： H04B7/10
CPC分类号： H04B7/0805 , H04B7/0608 , H04B7/0811
摘要： A switched antenna system selects an antenna based on symbol error rate.
摘要翻译：交换天线系统基于符号错误率选择天线。

33. 发明授权

US07154313B2 Wideband spread spectrum clock 有权
标题翻译：宽带扩频时钟
公开(公告)号：US07154313B2
公开(公告)日：2006-12-26
申请号：US10957121
申请日：2004-09-30
申请人： Xintian E. Lin , Qinghua Li
发明人： Xintian E. Lin , Qinghua Li
IPC分类号： H03K3/84
CPC分类号： H04B15/04 , H04B2201/70715 , H04B2215/064 , H04B2215/067
摘要： A method and apparatus are described. The method comprises generating a clock signal comprising regularly spaced clock-timing transitions between a signal high and a signal low to provide timing for a circuit coupled to the clock signal, and periodicity-disrupting transitions between the signal high and signal low, randomly inserted between the clock-timing transitions to disrupt a periodicity of the regularly spaced clock-timing transitions; and transmitting the clock signal to the circuit.
摘要翻译：描述了一种方法和装置。该方法包括产生时钟信号，该时钟信号包括在信号高和信号低之间的规则间隔的时钟定时转换，以提供与时钟信号耦合的电路的定时，以及随机插入在时钟信号之间的信号高与信号低之间的周期性中断转换时钟定时转变以破坏规则间隔的时钟定时转换的周期; 并将时钟信号发送到电路。

34. 发明授权

US08874046B2 Techniques utilizing step size adaptation for differential beamforming in wireless networks 有权
标题翻译：在无线网络中利用步长适应差分波束成形技术
公开(公告)号：US08874046B2
公开(公告)日：2014-10-28
申请号：US12655258
申请日：2009-12-28
申请人： Qinghua Li , Xintian E. Lin , Yuan Zhu , Jiacheng Wang , Shanshan Zheng , Xiaofeng Liu , Guangjie Li , Feng Zhou
发明人： Qinghua Li , Xintian E. Lin , Yuan Zhu , Jiacheng Wang , Shanshan Zheng , Xiaofeng Liu , Guangjie Li , Feng Zhou
IPC分类号： H04B1/00 , H04B7/06
CPC分类号： H04B7/0641 , H04B7/0478 , H04B7/0482 , H04B7/0617 , H04B7/0636 , H04B7/0639
摘要： An embodiment of the present invention provides a method used in transmit beam forming, comprising, providing differential feedback by using variable differential codebooks across a plurality of feedbacks wherein the differential codebooks may have different shapes, and/or spans, and/or the numbers of codewords across feedbacks.
摘要翻译：本发明的一个实施例提供了一种用于发射波束形成的方法，包括：通过使用多个反馈中的可变差分码本来提供差分反馈，其中差分码本可以具有不同的形状和/或跨度，和/或反馈码字。

35. 发明授权

US08861423B2 Interference mitigation by overhearing 有权
标题翻译：干扰减轻干扰
公开(公告)号：US08861423B2
公开(公告)日：2014-10-14
申请号：US12016609
申请日：2008-01-18
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H04B7/14 , H04L1/00 , H04B1/7107 , H04J11/00 , H04L1/18
CPC分类号： H04L1/0045 , H04B1/7107 , H04J11/004 , H04L1/1812 , H04L2001/0093 , H04L2001/0097
摘要： Briefly, in accordance with one or more embodiments in a wireless network, a station may overhear one or more packets that are not necessarily destined for those stations. The overhearing station may decode the data of the packet, and may utilizes the decoded packet to remove a retransmission of that packet in a subsequent time slot and occurring at the same time as the transmission of a packet destined for that station in the same time slot. Such a retransmission of packets may occur for example in relay systems and/or in hybrid automatic repeat request (HARQ) systems. The retransmitted packet may be treated as an interference signal in the total received signal, so that the previously received and decoded packet may be subtracted from the total signal, allowing the desired packet to be decoded from the intended signal.
摘要翻译：简而言之，根据无线网络中的一个或多个实施例，站可以窃听一个或多个不一定发往这些站的分组。监听站可以对分组的数据进行解码，并且可以利用解码的分组在随后的时隙中去除该分组的重传，并且与在同一时隙中发往该站的分组的发送同时发生。分组的这种重传可以例如在中继系统和/或混合自动重传请求（HARQ）系统中发生。重传的分组可以被视为总接收信号中的干扰信号，从而可以从总信号中减去先前接收和解码的分组，从而从期望的信号中解码所需分组。

36. 发明授权

US08737199B2 Techniques using differential precoding for highly correlated channels in wireless networks 有权
标题翻译：使用差分预编码技术在无线网络中高度相关的信道
公开(公告)号：US08737199B2
公开(公告)日：2014-05-27
申请号：US12757109
申请日：2010-04-09
申请人： Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
发明人： Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
IPC分类号： G01R31/08
CPC分类号： H04B7/0478 , H04B7/0465 , H04B7/0617 , H04B7/0639 , H04B7/0641
摘要： An embodiment of the present invention provides a method of using differential precoding for highly correlated channels in a wireless network, comprising, using a differential codebook optimized for highly correlated antennas.
摘要翻译：本发明的实施例提供了一种在无线网络中对高度相关的信道使用差分预编码的方法，包括：使用针对高度相关的天线优化的差分码本。

37. 发明授权

US08665981B2 Multiple input, multiple output wireless communication system, associated methods and data structures 有权
标题翻译：多输入，多输出无线通信系统，相关方法和数据结构
公开(公告)号：US08665981B2
公开(公告)日：2014-03-04
申请号：US13292528
申请日：2011-11-09
申请人： Xintian E. Lin , Qinghua Li , Keith A. Holt , Raymond Blackham , Minnie Ho
发明人： Xintian E. Lin , Qinghua Li , Keith A. Holt , Raymond Blackham , Minnie Ho
IPC分类号： H04B7/02
CPC分类号： H04B7/0478 , H04B7/0417 , H04B7/0482 , H04B7/0634 , H04B7/0639 , H04B7/0641 , H04B7/065 , H04B7/0663
摘要： Briefly, in accordance with one or more embodiments, in response to receiving a wireless communication signal, a non-uniform codebook is generated based at least in part on one or more characteristics of the received wireless communication signal for quantization and communication back to a source of the received signal. The non-uniform codebook may be generated by selecting a suitable uniform codebook based at least in part on the one or more characteristics of the received wireless communication signal, and supplementing the uniform codebook with additional codewords to generate the non-uniform codebook.
摘要翻译：简而言之，根据一个或多个实施例，响应于接收到无线通信信号，至少部分地基于所接收的无线通信信号的一个或多个特性来产生非均匀码本，用于量化和返回到源的接收信号。可以通过至少部分地基于所接收的无线通信信号的一个或多个特性选择合适的统一码本来生成非均匀码本，并且用附加码字来补充统一码本以生成非均匀码本。

38. 发明申请

US20130251009A1 TECHNIQUES TO MANAGE CHANNEL PREDICTION 审中-公开
公开(公告)号：US20130251009A1
公开(公告)日：2013-09-26
申请号：US13893236
申请日：2013-05-13
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H04B7/04
CPC分类号： H04B17/373 , H04B7/0408 , H04B7/0413 , H04B7/0617 , H04B7/0626 , H04B7/0854 , H04B17/14 , H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L1/0026 , H04L1/0032 , H04L1/0034 , H04L1/06 , H04L25/0206 , H04L25/0224 , H04L25/023
摘要： A system, apparatus, method and article to manage channel prediction for a wireless communication system are described. The apparatus may include a media access control processor to perform channel prediction, and a transceiver to communicate information using the channel prediction. Other embodiments are described and claimed.

39. 发明授权

US08515359B2 Method and apparatus to provide low cost transmit beamforming for network devices 有权
标题翻译：为网络设备提供低成本发射波束成形的方法和装置
公开(公告)号：US08515359B2
公开(公告)日：2013-08-20
申请号：US11076195
申请日：2005-03-09
申请人： Xintian E. Lin , Qinghua Li
发明人： Xintian E. Lin , Qinghua Li
IPC分类号： H04B1/00
CPC分类号： H04B7/0617 , H04B7/0421 , H04B7/0619
摘要： Techniques and structures for use in generating an approximated beamforming matrix in a MIMO based system are disclosed. The techniques and structures may be used to allow closed loop MIMO beamforming to be performed within a device that does not include singular value decomposition (SVD) circuitry.
摘要翻译：公开了用于在基于MIMO的系统中生成近似波束形成矩阵的技术和结构。技术和结构可用于允许在不包括奇异值分解（SVD）电路的设备内执行闭环MIMO波束成形。

40. 发明申请

US20130208820A1 COMMUNICATION OVERHEAD REDUCTION APPARATUS, SYSTEMS, AND METHODS 有权
公开(公告)号：US20130208820A1
公开(公告)日：2013-08-15
申请号：US13758823
申请日：2013-02-04
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H04B7/04
CPC分类号： H04B7/0684 , H04B7/0417 , H04B7/0697 , H04L5/0046 , H04W52/42 , H04W56/001 , H04W84/12 , H04W84/18
摘要： An apparatus and a system, as well as a method and article, may operate to transmit a first number of training symbols corresponding to a first number of communication chains to solicit a response including a second number of training symbols corresponding to a second number of communication chains. The first and second number of communication chains may form a portion of a multiple-input, multiple-output (MIMO) system.

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