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61. 发明申请

US20110158218A1 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：US20110158218A1
公开(公告)日：2011-06-30
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： H04B7/216
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。

62. 发明授权

US07961802B2 Interpolation in channel state feedback 有权
标题翻译：通道状态反馈插值
公开(公告)号：US07961802B2
公开(公告)日：2011-06-14
申请号：US12424259
申请日：2009-04-15
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04B7/0663 , H04B7/0417 , H04B7/0634 , H04B7/0639 , H04B7/066 , H04L5/023 , H04L27/2602
摘要： Feedback bandwidth may be reduced in a closed loop MIMO system by Householder transformations, vector quantization using codebooks, and down-sampling in the frequency domain. A column of a beamforming matrix is quantized using a codebook, a Householder reflection is performed on the beamforming matrix to reduce the dimensionality of the beamforming matrix, and the quantizing and performing of Householder reflection on the previously dimensionality reduced beamforming matrix is recursively repeated to obtain a further reduction of dimensionality of the beamforming matrix. These actions are performed for a subset of orthogonal frequency divisional multiplexing (OFDM) carriers, and quantized column vectors for the subset of OFDM carriers are transmitted.
摘要翻译：在闭环MIMO系统中，通过Householder变换，使用码本的矢量量化和频域中的下采样可以减少反馈带宽。使用码本对波束成形矩阵的列进行量化，对波束成形矩阵执行Householder反射以减小波束成形矩阵的维数，并且递归地重复量化并执行先前维数减小的波束形成矩阵中的Householder反射以获得波束形成矩阵的维度的进一步降低。对于正交频分复用（OFDM）载波的子集执行这些动作，并且发送用于OFDM载波子集的量化列向量。

63. 发明授权

US07907540B2 Relays in wireless communication networks 有权
标题翻译：无线通信网络中的继电器
公开(公告)号：US07907540B2
公开(公告)日：2011-03-15
申请号：US11959351
申请日：2007-12-18
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H04J1/16
CPC分类号： H04W72/085 , H04B7/2606 , H04L1/0026 , H04L2001/0097 , H04W84/047 , H04W88/04
摘要： Methods and apparatus for transmitting packets in wireless communication networks are disclosed. The methods include a relay mobile station measuring channel quality between the relay mobile station and a destination mobile station in response to a request for relay mobile stations from a base station The relay mobile station reports a channel quality indicator to the base station if the channel quality for a link between the base station and the destination mobile station via the relay mobile station is greater than a predetermined channel quality. The base station determines the relay mobile station that provides an optimal route for transmitting the packets from the base station to the destination mobile station.
摘要翻译：公开了在无线通信网络中传送分组的方法和装置。所述方法包括响应于从基站对中继移动台的请求，测量中继移动台和目的地移动台之间的信道质量的中继移动台。如果信道质量，中继移动台向基站报告信道质量指示符用于基站和目的地移动台之间经由中继移动站的链路大于预定信道质量。基站确定提供用于从基站向目的地移动台发送分组的最佳路由的中继移动台。

64. 发明授权

US07801235B2 Method and apparatus for achieving multiple antenna diversity with two antenna per packet diversity in a wireless network 有权
标题翻译：用于在无线网络中实现具有两个天线每个分组分集的多天线分集的方法和装置
公开(公告)号：US07801235B2
公开(公告)日：2010-09-21
申请号：US10929664
申请日：2004-08-30
申请人： Ashim Biswas , Xintian E. Lin
发明人： Ashim Biswas , Xintian E. Lin
IPC分类号： H04B7/02
CPC分类号： H04B7/0874
摘要： A wireless communication device that includes more than two antennas considers only two of those antennas for use in receiving any particular wireless packet. During reception of an initial portion of a wireless packet, a quality metric may be measured for each of the two antennas being considered. One of the two antennas may then be selected to receive a payload portion of the wireless packet based on the measured metrics. In at least one embodiment, a different pair of antennas is considered for each successive received packet.
摘要翻译：包括多于两个天线的无线通信设备仅考虑这些天线中的两个用于接收任何特定的无线分组。在接收无线分组的初始部分期间，可以针对所考虑的两个天线中的每个天线测量质量度量。然后可以选择两个天线中的一个，以基于测量的度量来接收无线分组的有效载荷部分。在至少一个实施例中，对于每个连续接收的分组考虑不同的天线对。

65. 发明申请

US20100226357A1 Differential codebook for a wireless network, MIMO beamforming system using same, and method of reducing a quantization error in a MIMO beamforming system for a wireless network using same 审中-公开
标题翻译：用于无线网络的差分码本，使用该无线网络的MIMO波束成形系统以及使用该无线网络的用于使用无线网络的MIMO波束形成系统中的量化误差的方法
公开(公告)号：US20100226357A1
公开(公告)日：2010-09-09
申请号：US12658105
申请日：2010-02-02
申请人： Qinghua Li , Xintian E. Lin , Yuan Zhu
发明人： Qinghua Li , Xintian E. Lin , Yuan Zhu
IPC分类号： H04B7/216 , H04K1/10
CPC分类号： H04W68/08 , H04B7/0478 , H04W68/02 , H04W84/045
摘要： A differential codebook for a wireless network includes a plurality of codewords and [e1 . . . eNs] G as a center location of the plurality of codewords, where ek represents a column vector comprising a plurality of rows including a k-th row and in which an entry on the k-th row is one and entries on each of the plurality of rows except for the k-th row are zero, where G is any Ns by Ns unitary matrix including the identity matrix, and where Ns, represents a number of spatial streams in the wireless network. At least two of the plurality of codewords are symmetric about the center location.
摘要翻译：无线网络的差分码本包括多个码字，[e1。。。 eNs] G作为多个码字的中心位置，其中ek表示包括包括第k行的多行的列向量，并且其中第k行中的条目是1，并且多个行中的每一个上的条目除了第k行以外的行是零，其中G是包括单位矩阵的任何Ns乘Ns酉矩阵，并且其中Ns表示无线网络中的空间流的数量。多个码字中的至少两个码字关于中心位置是对称的。

66. 发明申请

US20100189068A1 DOWNLINK TRANSMIT BEAMFORMING 有权
标题翻译：下行发射波束形成
公开(公告)号：US20100189068A1
公开(公告)日：2010-07-29
申请号：US12752517
申请日：2010-04-01
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H04W72/04
CPC分类号： H04B7/0413 , H04B7/0617 , H04B7/0643 , H04L1/0681
摘要： A wireless network access point can operate as a closed loop MIMO device when communicating with a station that is operating as an open loop MIMO device. Transmit/receive chains in the access point are calibrated to support aggregate channel reciprocity.
摘要翻译：当与作为开环MIMO设备操作的站通信时，无线网络接入点可以作为闭环MIMO设备操作。校准接入点中的发送/接收链以支持聚合信道互易。

67. 发明授权

US07676197B2 Signal spectrum steering method, apparatus, and system 有权
标题翻译：信号频谱转向方法，装置和系统
公开(公告)号：US07676197B2
公开(公告)日：2010-03-09
申请号：US11173879
申请日：2005-06-30
申请人： Xintian E. Lin , Qinghua Li , Lei Shao , Allen W. Bettner
发明人： Xintian E. Lin , Qinghua Li , Lei Shao , Allen W. Bettner
IPC分类号： H04B1/00 , H04B15/00
CPC分类号： H04W16/14 , H04B15/02 , H04B2215/064 , H04B2215/065
摘要： A computing platform includes a wireless interface and other devices that may cause interference to the wireless interface. The other devices may change frequencies of operation or data rates to steer signal spectrum away from current wireless channels and reduce interference to the wireless interface.
摘要翻译：计算平台包括无线接口和可能对无线接口造成干扰的其他设备。其他设备可以改变操作频率或数据速率，以将信号频谱从当前无线信道转移出来，并减少对无线接口的干扰。

68. 发明授权

US07672387B2 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：US07672387B2
公开(公告)日：2010-03-02
申请号：US11313532
申请日：2005-12-20
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： H04L23/02
CPC分类号： H04B7/0478 , H04B7/0417 , H04B7/0482 , H04B7/0634 , H04B7/0639 , H04B7/0641 , H04B7/065 , H04B7/0663
摘要： Embodiments of multiple input multiple output wireless communication systems, associated methods and data structures are generally described herein.
摘要翻译：多输入多输出无线通信系统，相关联的方法和数据结构的实施例在此通常被描述。

69. 发明申请

US20100002677A1 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：US20100002677A1
公开(公告)日：2010-01-07
申请号：US12584780
申请日：2009-09-10
申请人： Xintian E. Lin , Qinghua Li
发明人： Xintian E. Lin , Qinghua Li
IPC分类号： H04J3/00
CPC分类号： H04W72/1263 , H04B7/0617 , H04B7/0697 , H04J3/00 , H04W28/065 , H04W72/0453 , H04W72/1273 , H04W84/12 , H04W88/08
摘要： Embodiments of the present invention provide an apparatus capable of filling space-time channels in Spatial-Division Multiple-Access (SDMA) in a Medium Access Control (MAC) protocol, comprising, a base station operable in a wireless network and adapted for uplink and downlink multi-user and multi antenna operation, the base station including a MAC scheduler to schedule transmissions using packet scheduling in the wireless network, and wherein the MAC scheduler schedules variable length packets for transmission using packet scheduling in the wireless network based on transmission times to transmit on each of M spatial channels to mobile stations operable in the wireless network by filling the M spatial channels using data packets buffered for the mobile stations operable to communicate with the base station.
摘要翻译：本发明的实施例提供一种能够在介质访问控制（MAC）协议中填充空分多址（SDMA）中的时空信道的装置，包括：可在无线网络中操作并适用于上行链路和下行链路多用户和多天线操作，所述基站包括MAC调度器，以在所述无线网络中使用分组调度来调度传输，并且其中所述MAC调度器基于传输时间在所述无线网络中调度可变长度分组以进行传输，通过使用为可操作以与基站进行通信的移动站缓冲的数据分组来填充M个空间信道，将M个空间信道中的每一个发送到在无线网络中可操作的移动站。

70. 发明申请

US20090323627A1 Filling the space-time channels in SDMA 有权
标题翻译：填写SDMA中的空时通道
公开(公告)号：US20090323627A1
公开(公告)日：2009-12-31
申请号：US12584144
申请日：2009-09-01
申请人： Xintian E. Lin , Qinghua Li
发明人： Xintian E. Lin , Qinghua Li
IPC分类号： H04W72/12
CPC分类号： H04W72/1263 , H04B7/0617 , H04B7/0697 , H04J3/00 , H04W28/065 , H04W72/0453 , H04W72/1273 , H04W84/12 , H04W88/08
摘要： Embodiments of the present invention provide an apparatus, comprising a base station operable in a wireless network, the base station including a scheduler, and wherein the scheduler schedules variable length packets for transmission based on transmission times to transmit on each of M spatial channels to mobile stations operable in the wireless network by filling the M spatial channels using data packets buffered for the mobile stations.
摘要翻译：本发明的实施例提供一种装置，包括可在无线网络中操作的基站，所述基站包括调度器，并且其中所述调度器基于传输时间调度可变长度分组以进行传输，以便在每个M个空间信道上传输到移动台通过使用为移动站缓冲的数据分组来填充M个空间信道，可在无线网络中操作的站。

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