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41. 发明申请

US20070238480A1 Wireless network feedback techniques to improve power control and co-channel interference 有权
标题翻译：无线网络反馈技术，提高功率控制和同频干扰
公开(公告)号：US20070238480A1
公开(公告)日：2007-10-11
申请号：US11391054
申请日：2006-03-28
申请人： Xintian Lin , Qinghua Li
发明人： Xintian Lin , Qinghua Li
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04W52/241
摘要： Techniques are provided that allow power control and/or hand off operations to be performed in a wireless network in a manner that can enhance overall network throughput.
摘要翻译：提供了能够以能够提高整体网络吞吐量的方式在无线网络中执行功率控制和/或切换操作的技术。

42. 发明申请

US20060165191A1 MIMO channel feedback protocols 失效
公开(公告)号：US20060165191A1
公开(公告)日：2006-07-27
申请号：US11040700
申请日：2005-01-21
申请人： Xintian Lin , Qinghua Li
发明人： Xintian Lin , Qinghua Li
IPC分类号： H04L1/02
CPC分类号： H04B7/0417 , H04B7/0636 , H04L25/0228 , H04W24/00 , H04W28/22 , H04W28/26 , H04W48/08
摘要： Handshaking protocols, techniques, and structures are presented for use in implementing closed loop MIMO using explicit feedback in a wireless network.

43. 发明申请

US20060165008A1 Techniques to manage channel prediction 有权
公开(公告)号：US20060165008A1
公开(公告)日：2006-07-27
申请号：US11040955
申请日：2005-01-21
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04J1/16
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.

44. 发明申请

US20060156087A1 Bit distributor for multicarrier communication systems employing adaptive bit loading for multiple spatial streams and methods 失效
标题翻译：采用多空间流自适应位加载的多载波通信系统的位分配器和方法
公开(公告)号：US20060156087A1
公开(公告)日：2006-07-13
申请号：US11034204
申请日：2005-01-12
申请人： Xintian Lin , Qinghua Li , Alexei Davydov , Alexander Maltsev , Sumeet Sandhu , Ada Shuk Yan Poon
发明人： Xintian Lin , Qinghua Li , Alexei Davydov , Alexander Maltsev , Sumeet Sandhu , Ada Shuk Yan Poon
IPC分类号： G01R31/28
CPC分类号： H04L27/2608
摘要： In a multicarrier transmitter that transmits two or more spatial data streams, a bit distributor assigns encoded bits to the spatial data streams based on bit-loading capabilities of the streams and in a manner to intermix the bits among the spatial streams.
摘要翻译：在发送两个或多个空间数据流的多载波发射机中，位分配器基于流的比特加载能力并且以混合空间流之间的比特的方式将编码比特分配给空间数据流。

45. 发明申请

US20060098580A1 Apparatus and method capable of beam forming adjustments 审中-公开
标题翻译：能够进行波束形成调整的装置和方法
公开(公告)号：US20060098580A1
公开(公告)日：2006-05-11
申请号：US10984587
申请日：2004-11-08
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04Q7/24 , H04J3/14
CPC分类号： H04W16/28 , H04B7/0408 , H04L1/1671 , H04L1/1829 , H04W28/22
摘要： An embodiment of the present invention provides a wireless communication system capable of beamforming adjustments, comprising a transmitter capable of transmitting beamformed data packets and a receiver capable of receiving the beamformed packets and detecting any failed beamforming packets addressed to the receiver and determining a reason for the failure, and wherein the receiver is capable of indicating to the transmitter a reason the failure. The receiver may further determine the reason for failure by checking crosstalk of beamed data streams and if the crosstalk is low and the lost data packet is sent by a beamforming mode, the receiver may send back a channel sounding packet in order to track the channel. Also, the receiver may further check the channel quality and select an appropriate data rate for the transmitter for feedback and may send a control packet back to the transmitter.
摘要翻译：本发明的一个实施例提供一种能够进行波束成形调整的无线通信系统，包括能够发送波束形成的数据分组的发射机和能够接收波束形成的分组并且检测寻址到接收机的任何失败的波束成形分组的接收机，并且确定故障，并且其中接收机能够向发射机指示故障的原因。接收机可以通过检查波束数据流的串扰来进一步确定故障原因，并且如果串扰低并且通过波束成形模式发送丢失的数据分组，则接收机可以发送回信道探测分组以便跟踪信道。此外，接收机还可以检查信道质量并为发送机选择合适的数据速率以进行反馈，并且可以将控制分组发送回发射机。

46. 发明申请

US20060056532A1 Calibration in MIMO systems 有权
标题翻译： MIMO系统中的校准
公开(公告)号：US20060056532A1
公开(公告)日：2006-03-16
申请号：US10939162
申请日：2004-09-10
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04L1/02
CPC分类号： H04L25/03343
摘要： Aggregate channel reciprocity in a wireless system is supported by calibrating transmitter/receiver pairs.
摘要翻译：通过校准发射机/接收机对来支持无线系统中的总体信道互易。

47. 发明申请

US20050243773A1 Method and apparatus for diversity switching control 失效
标题翻译：用于分集切换控制的方法和装置
公开(公告)号：US20050243773A1
公开(公告)日：2005-11-03
申请号：US10835296
申请日：2004-04-28
申请人： Xintian Lin , Qinghua Li , Allen Bettner
发明人： Xintian Lin , Qinghua Li , Allen Bettner
IPC分类号： H04B7/06 , H04B7/08 , H04L1/00
CPC分类号： H04B7/0686 , H04B7/0817 , H04B7/0831 , H04B7/0868
摘要： A method and apparatus for diversity switching control are generally described herein.
摘要翻译：本文一般地描述用于分集切换控制的方法和装置。

48. 发明申请

US20050144307A1 Back-end alignment to avoid SDMA ACK time-out 审中-公开
标题翻译：后端对齐以避免SDMA ACK超时
公开(公告)号：US20050144307A1
公开(公告)日：2005-06-30
申请号：US10737142
申请日：2003-12-15
申请人： Qinghua Li , Xintian Lin , Minnie Ho , Adrian Stephens
发明人： Qinghua Li , Xintian Lin , Minnie Ho , Adrian Stephens
IPC分类号： H04L1/16 , H04L1/18 , G06F15/16
CPC分类号： H04L1/16 , H04L1/1854 , H04L1/188
摘要： In a base station using spatial division multiple access communications, different length transmissions directed from a base station to different multiple mobile devices substantially simultaneously may have their start times adjusted so that the transmissions end at approximately the same time. The mobile devices may then respond during a response period with acknowledgments at approximately the same time. Thus all the acknowledgments may be received within the same time period from the end of the transmissions, reducing the likelihood of missed acknowledgments in responses to the shorter transmissions.
摘要翻译：在使用空分多址通信的基站中，基本上同时从基站到不同的多个移动设备的不同长度的传输可以调整其起始时间，使得传输在大致相同的时间结束。然后，移动设备可以在响应周期期间在大约相同的时间进行确认。因此，所有的确认可以在从传输结束的相同的时间段内被接收，从而减少对较短的传输的响应中错过的确认的可能性。

49. 发明申请

US20050143014A1 Antenna subsystem calibration apparatus and methods in spatial-division multiple-access systems 有权
标题翻译：天线子系统校准装置和空分多址系统的方法
公开(公告)号：US20050143014A1
公开(公告)日：2005-06-30
申请号：US10749904
申请日：2003-12-29
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04B7/06 , H04B1/00 , H04B1/38 , H04B7/00
CPC分类号： H04B7/0619 , H04B7/0617
摘要： A wireless local area network (WLAN) includes an access point (AP), which provides communications channels to a plurality of stations. The AP supports spatial-division, multiple-access (SDMA) and accordingly includes a plurality of antenna subsystems. In order to achieve zero-forcing downlink beamforming, internal calibration procedures are occasionally performed within the AP. An internal calibration procedure includes an antenna subsystem transmitting a calibration signal. Received signals are measured at other antenna subsystems, and from these measurements, the transmit and receive chain gains are calculated for each antenna subsystem. One or more of these gains are adjusted to satisfy a primary condition, which is that the ratio of the transmit chain gain and the receive chain gain for all of the antenna subsystems are approximately equal (i.e., all of these ratios are equal to a calibration constant).
摘要翻译：无线局域网（WLAN）包括向多个站提供通信信道的接入点（AP）。 AP支持空分多址（SDMA），相应地包括多个天线子系统。为了实现迫零下行链路波束形成，AP内部偶尔执行内部校准过程。内部校准程序包括发送校准信号的天线子系统。在其他天线子系统中测量接收信号，并从这些测量中计算每个天线子系统的发射和接收链增益。调整这些增益中的一个或多个以满足主要条件，即，所有天线子系统的发射链增益和接收链增益的比率近似相等（即，所有这些比率都等于校准不变）。

50. 发明申请

US20050141495A1 Filling the space-time channels in SDMA 审中-公开
标题翻译：填写SDMA中的空时通道
公开(公告)号：US20050141495A1
公开(公告)日：2005-06-30
申请号：US10749293
申请日：2003-12-30
申请人： Xintian Lin , Qinghua Li
发明人： Xintian Lin , Qinghua Li
IPC分类号： H04B7/06 , H04L1/00 , H04L1/06 , H04L12/28 , H04L12/56
CPC分类号： H04W72/1263 , H04B7/0617 , H04B7/0697 , H04J3/00 , H04W28/065 , H04W72/0453 , H04W72/1273 , H04W84/12 , H04W88/08
摘要： A Medium Access Control (MAC) protocol enhances the efficiency of SDMA systems and includes features for fragmentation, data traffic scheduling, adjusting error rate control bits and retrieving antenna resources to form spatial channels developed on the fly.
摘要翻译：媒体访问控制（MAC）协议增强了SDMA系统的效率，并且包括分段，数据业务调度，调整差错率控制位和检索天线资源以形成飞行中开发的空间信道的特征。

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