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51. 发明授权

US08320273B2 Link adaptation for retransmission schemes 有权
标题翻译：重传方案的链路适配
公开(公告)号：US08320273B2
公开(公告)日：2012-11-27
申请号：US12749920
申请日：2010-03-30
申请人： Hang Jin , Li Guo , Hanqing Lou
发明人： Hang Jin , Li Guo , Hanqing Lou
IPC分类号： H04L12/28 , H04B7/216
CPC分类号： H04L1/0034 , H04L1/0035
摘要： Link adaptive retransmission techniques are provided for use in connection with wireless communications between a first wireless communication device and a second wireless communication device. The first wireless communication device generates M packet error information values for the transmit session of a packet based on whether an acknowledgment message or a non-acknowledgment message is received from the second wireless communication device for a transmission and for previously sent transmissions even if less than M transmissions are sent by the first wireless communication device to the second wireless communication device upon completion of the transmit session. The first wireless communication device computes a retransmission fading margin based on the M packet error information values, from which an effective carrier-to-interference-plus-noise ratio is derived for selection of a modulation scheme.
摘要翻译：链路自适应重传技术被提供用于结合第一无线通信设备和第二无线通信设备之间的无线通信。第一无线通信设备基于是否从第二无线通信设备接收到用于传输的确认消息或非确认消息，以及对于先前发送的传输，即使小于等于，也产生用于分组的发送会话的M个分组错误信息值在发送会话完成时，M个传输由第一无线通信设备发送到第二无线通信设备。第一无线通信设备基于M个分组误差信息值来计算重发衰落余量，从而从其导出用于选择调制方案的有效载波干扰加噪声比。

52. 发明申请

US20120264388A1 Adaptive Interference Nulling for MIMO Receiver Based on Interference Characteristics 有权
标题翻译：基于干扰特性的MIMO接收机的自适应干扰消除
公开(公告)号：US20120264388A1
公开(公告)日：2012-10-18
申请号：US13086643
申请日：2011-04-14
申请人： Li Guo , Hang Jin , Paul J. Stager , Neil R. Diener , Matthew A. Silverman , Chandra Vaidyanathan
发明人： Li Guo , Hang Jin , Paul J. Stager , Neil R. Diener , Matthew A. Silverman , Chandra Vaidyanathan
IPC分类号： H04B1/10
CPC分类号： H04B7/0865 , H04B17/345
摘要： Interference in an unlicensed frequency band is spatially filtered out from received signals at a wireless device operating in the unlicensed frequency band. Energy received at a plurality of antennas of the wireless is device is analyzed to detect interference in the unlicensed frequency band. The detected interference is classified by type. Parameters for a nulling filter are generated or selected based on the type of interference detected in the received energy. During a time interval when it is expected to receive desired signals, the nulling filter is applied using the parameters to signals obtained from energy received at the plurality of antennas during the time interval.
摘要翻译：未经授权的频带中的干扰在从未接收的频带中工作的无线设备的接收信号中被空间滤除。对在无线的多个天线处接收的能量进行分析，以检测未许可频带中的干扰。检测到的干扰按类型分类。基于在接收能量中检测到的干扰类型来生成或选择归零滤波器的参数。在预期接收期望信号的时间间隔期间，使用参数将归零滤波器应用于在时间间隔期间从在多个天线接收的能量获得的信号。

53. 发明授权

US08249538B2 Offset direct conversion receiver 有权
标题翻译：偏移直接转换接收器
公开(公告)号：US08249538B2
公开(公告)日：2012-08-21
申请号：US12276449
申请日：2008-11-24
申请人： Hang Jin , John Grabner
发明人： Hang Jin , John Grabner
IPC分类号： H04B1/10
CPC分类号： H04B1/30
摘要： An offset direct conversion receiver apparatus and corresponding receiving method are provided. A received wireless signal is directly downconverted and demodulated to a baseband offset frequency that is offset from zero frequency to produce an in-phase (I) baseband offset signal centered at the baseband offset frequency and a quadrature-phase (Q) baseband offset signal centered at the baseband offset frequency. The I baseband offset signal and Q baseband offset signal are bandpass filtered to produce an I bandpass signal and a Q bandpass signal, respectively. The I bandpass signal and the Q bandpass signal are downconverted from the baseband offset frequency to zero frequency to produce an I baseband receive signal and a Q baseband receive signal. A technique and logic are also provided to select the best baseband offset frequency used in an offset direct conversion receiver.
摘要翻译：提供一种偏移直接变换接收装置及相应的接收方法。接收到的无线信号被直接下变频并被解调为从零频率偏移的基带偏移频率，以产生以基带偏移频率为中心的同相（I）基带偏移信号，并以正交相位（Q）基带偏移信号为中心在基带偏移频率。 I基带偏移信号和Q基带偏移信号被带通滤波，分别产生I带通信号和Q带通信号。 I带通信号和Q带通信号从基带偏移频率下变频到零频率，以产生I基带接收信号和Q基带接收信号。还提供了一种技术和逻辑来选择在偏移直接转换接收机中使用的最佳基带偏移频率。

54. 发明申请

US20120196594A1 Multicast Optimization and Aggregation in an Enterprise Controller 有权
标题翻译：企业控制器中的组播优化和聚合
公开(公告)号：US20120196594A1
公开(公告)日：2012-08-02
申请号：US13016920
申请日：2011-01-28
申请人： Allaukik Abhishek , Rajesh Pazhyannur , Mark Grayson , Daniel Wee , Santhalingam Balasekar , Hang Jin , Malcolm Smith
发明人： Allaukik Abhishek , Rajesh Pazhyannur , Mark Grayson , Daniel Wee , Santhalingam Balasekar , Hang Jin , Malcolm Smith
IPC分类号： H04W60/00 , H04W4/06 , H04W36/00
CPC分类号： H04W24/02 , H04L12/1836 , H04L12/189 , H04W4/06 , H04W84/045
摘要： A method and apparatus are provided for managing radio access point (RAP) devices and enterprise controller devices in a wireless communication network. An enterprise controller device registers with a gateway device, and the enterprise controller device receives a registration request from multiple RAP devices that are serviced by the enterprise controller device. As the RAP devices register with the enterprise controller device, the enterprise controller device generates a list of the RAP devices registered with the enterprise controller. As the enterprise controller receives additional registration requests from additional RAP devices, the enterprise controller updates the list. The enterprise controller sends the list to the gateway device with which it registers so that the gateway device is aware of RAP devices serviced by the enterprise controller device. In this way, aggregated messages may be sent from the gateway device to the enterprise controller.
摘要翻译：提供了一种在无线通信网络中管理无线接入点（RAP）设备和企业控制器设备的方法和装置。企业控制器设备向网关设备注册，并且企业控制器设备从由企业控制器设备服务的多个RAP设备接收注册请求。当RAP设备向企业控制器设备注册时，企业控制器设备生成注册到企业控制器的RAP设备的列表。随着企业控制器从其他RAP设备接收附加注册请求，企业控制器更新列表。企业控制器将列表发送到与其注册的网关设备，使网关设备了解企业控制器设备所服务的RAP设备。以这种方式，聚合消息可以从网关设备发送到企业控制器。

55. 发明授权

US08116818B2 Method and system for transmitter beamforming 有权
标题翻译：发射机波束成形的方法和系统
公开(公告)号：US08116818B2
公开(公告)日：2012-02-14
申请号：US11397214
申请日：2006-04-04
申请人： Hang Jin , John Grabner
发明人： Hang Jin , John Grabner
IPC分类号： H04M1/00
CPC分类号： H04B7/0617 , H04B7/0626 , H04B17/373
摘要： A system and method are provided for improving the performance of a beamforming antenna array in a wireless communications system. A predetermined number of spatial signatures are observed for a communications channel between a base station and a mobile terminal during a predetermined time period. One or more test spatial signatures are generated based on statistical analysis of the observed predetermined number of spatial signatures. A beamforming weight is derived based on the generated test spatial signatures for beamforming by an antenna subsystem of the base station.
摘要翻译：提供了一种用于改善无线通信系统中波束成形天线阵列的性能的系统和方法。在预定时间段期间，在基站和移动终端之间的通信信道上观察到预定数量的空间签名。基于观察到的预定数量的空间签名的统计分析来生成一个或多个测试空间签名。基于由基站的天线子系统产生的用于波束成形的所产生的测试空间特征导出波束成形权重。

56. 发明授权

US08059744B2 Frequency band extrapolation beamforming weight computation for wireless communications 有权
标题翻译：无线通信频带外推波束成形权重计算
公开(公告)号：US08059744B2
公开(公告)日：2011-11-15
申请号：US12109394
申请日：2008-04-25
申请人： Hang Jin , Yanxin Na
发明人： Hang Jin , Yanxin Na
IPC分类号： H04B7/02
CPC分类号： H04B7/0617 , H04L27/2602
摘要： Techniques are provided to facilitate the computation of beamforming weights used by a first communication device when sending a transmission via a plurality of antennas to a second communication device where knowledge of the behavior of the channel between the first communication device and the second communication device is limited to a portion of a wide frequency band. A frequency extrapolation beamforming weight computation process is provided to derive knowledge in other frequency subbands based on information contained in the received transmission from the second communication device.
摘要翻译：提供技术以便于当通过多个天线向多个天线发送传输时由第一通信设备使用的波束成形加权的计算，其中第一通信设备和第二通信设备之间的信道的行为的知识受到限制到宽频带的一部分。提供频率外推波束形成权重计算处理，以基于来自第二通信设备的接收到的传输中包含的信息来导出其他频率子带中的知识。

57. 发明授权

US08040831B2 Method and system for control channel beamforming 有权
标题翻译：控制通道波束成形的方法和系统
公开(公告)号：US08040831B2
公开(公告)日：2011-10-18
申请号：US11364689
申请日：2006-02-27
申请人： Brian L. Kurtz , Hang Jin , Weidong Yang , Daniel Wee , Philip B. Davis , John Grabner
发明人： Brian L. Kurtz , Hang Jin , Weidong Yang , Daniel Wee , Philip B. Davis , John Grabner
IPC分类号： H04B7/185
CPC分类号： H04W48/12 , H04L5/0026 , H04L5/0053 , H04W48/14 , H04W48/20
摘要： A system and method for managing control information in a wireless communications system. The method comprises broadcasting a predetermined number of preambles through beamforming from a base station, detecting, by a subscriber station, a predetermined frame associated with one selected preamble that has the highest power level, and identifying one or more subcarriers for carrying control information through the selected preamble.
摘要翻译：一种用于在无线通信系统中管理控制信息的系统和方法。该方法包括通过波束成形从基站广播预定数量的前同步码，由用户台检测与具有最高功率电平的一个所选择的前导码相关联的预定帧，以及识别用于携带控制信息的一个或多个子载波所选序言。

58. 发明授权

US07965783B2 Method and system for transmitting data streams via a beamformed MIMO channel 有权
标题翻译：用于经由波束形成的MIMO信道发送数据流的方法和系统
公开(公告)号：US07965783B2
公开(公告)日：2011-06-21
申请号：US11957433
申请日：2007-12-15
申请人： Li Guo , Hang Jin
发明人： Li Guo , Hang Jin
IPC分类号： H04L23/02
CPC分类号： H04B7/043 , H04B7/0617 , H04B7/086 , Y02D70/444
摘要： A method and apparatus are provided for transmitting data streams in a wireless multiple-input-multiple-output (MIMO) communications system. The method comprises receiving a plurality of signals by a first mobile station, the plurality of signals being transmitted from antennas on a second mobile station, computing a plurality of beamforming weighting vectors from the received plurality of signals, calculating a pre-coding parameter matrix for a beamformed MIMO channel between the first and second mobile stations using the plurality of beamforming weighting vectors and the plurality of signals, determining a normalized transmitting power distribution for data streams transmitted via the beamformed MIMO channel, allocating transmitting power to the beamformed MIMO channel, wherein the data streams are transmitted via the beamformed MIMO channel having an optimized transmitting power distribution.
摘要翻译：提供了一种用于在无线多输入多输出（MIMO）通信系统中传输数据流的方法和装置。该方法包括由第一移动台接收多个信号，该多个信号是从第二移动台上的天线发送的，从接收到的多个信号中计算多个波束成形加权向量，计算一个预编码参数矩阵，使用多个波束形成加权向量和多个信号在第一和第二移动站之间的波束形成的MIMO信道，确定经由波束形成的MIMO信道发送的数据流的归一化的发射功率分布，为波束形成的MIMO信道分配发射功率，其中通过具有优化的发射功率分布的波束形成的MIMO信道传输数据流。

59. 发明申请

US20110090974A1 Scheduling Collaborative Uplink Transmissions in OFDMA Systems Using Multipath Direction of Arrival Analysis 有权
标题翻译：使用多径方向到达分析在OFDMA系统中调度协作上行链路传输
公开(公告)号：US20110090974A1
公开(公告)日：2011-04-21
申请号：US12582764
申请日：2009-10-21
申请人： Ahmadreza Hedayat , Hang Jin
发明人： Ahmadreza Hedayat , Hang Jin
IPC分类号： H04L27/28
CPC分类号： H04B7/0697 , H04B7/0452 , H04B7/086
摘要： Techniques are provided for receiving uplink transmissions at a plurality of antennas at a base station from a plurality of client stations. Uplink spatial transmissions are analyzed to produce a plurality of direction of arrival (DOA) components associated with the plurality of client stations. The DOA components associated with the plurality of client stations are compared and two or more client stations are selected to participate in an uplink collaborative spatial multiplexing transmission session based on dissimilarities of their DOA components.
摘要翻译：提供技术用于在多个客户站的基站处的多个天线处接收上行链路传输。分析上行链路空间传输以产生与多个客户站相关联的多个到达方向（DOA）分量。与多个客户站相关联的DOA组件进行比较，并且基于它们的DOA组件的不相似性，选择两个或多个客户站参与上行协作空间复用传输会话。

60. 发明申请

US20110045792A1 Beamforming Weight Generation Using Adaptive Trigonometric Waveform Interpolation Techniques 有权
标题翻译：使用自适应三角波形插值技术的波束成形重量生成
公开(公告)号：US20110045792A1
公开(公告)日：2011-02-24
申请号：US12543593
申请日：2009-08-19
申请人： Yanxin Na , Hang Jin
发明人： Yanxin Na , Hang Jin
IPC分类号： H04B1/06
CPC分类号： H04B7/0626
摘要： Techniques are provided herein to generate beamforming weight vectors for transmissions to be made from a first wireless communication device, e.g., a base station, to a second wireless communication device, e.g., a client device. The first device has a plurality of antennas and receives uplink transmissions from the second device, each uplink transmission comprising a group of frequency subcarriers. The first device computes channel information from the received uplink transmission and computes one or more trigonometric waveforms determined to approximate the channel information. One or more downlink beamforming weight vectors are computed at any given frequency subcarrier (thus in any frequency subband) by interpolation using the one or more trigonometric waveforms.
摘要翻译：本文提供技术来生成用于从第一无线通信设备（例如，基站）到第二无线通信设备（例如，客户端设备）的传输的波束成形权重向量。第一设备具有多个天线并且从第二设备接收上行链路传输，每个上行链路传输包括一组频率副载波。第一设备从接收的上行链路传输中计算信道信息，并且计算确定为近似信道信息的一个或多个三角波形。通过使用一个或多个三角波形进行内插，在任何给定的频率子载波（因此在任何频率子带中）计算一个或多个下行链路波束成形加权矢量。

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