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31. 发明授权

US07697485B2 Method for improving the performance of a wireless communications network by using beamformed virtual antennas 有权
标题翻译：通过使用波束形成的虚拟天线来改善无线通信网络的性能的方法
公开(公告)号：US07697485B2
公开(公告)日：2010-04-13
申请号：US11743510
申请日：2007-05-02
申请人： Qingwen Liu , Hang Jin
发明人： Qingwen Liu , Hang Jin
IPC分类号： H04Q7/00
CPC分类号： H04W16/28 , H04B7/024 , H04B7/0617 , H04L1/0077 , H04L1/0618 , H04W36/18
摘要： The present invention discloses a method for wireless communications network performance in transmitting a message. The method comprises creating a first beamformed virtual antenna for the serving BTS and one or more second beamformed virtual antennas for the one or more target BTSs when one or more predetermined conditions are met, establishing a first beamformed channel by using the first beamformed virtual antenna, establishing one or more second beamformed channels by using the one or more second beamformed virtual antennas, and transmitting a plurality of signals comprising the message via the first and the one or more second beamformed channels.
摘要翻译：本发明公开了一种无线通信网络在发送消息中的性能的方法。该方法包括：当满足一个或多个预定条件时，为服务BTS创建第一波束形成的虚拟天线和用于一个或多个目标BTS的一个或多个第二波束形成的虚拟天线，通过使用第一波束形成的虚拟天线建立第一波束形成的信道，通过使用所述一个或多个第二波束形成的虚拟天线来建立一个或多个第二波束形成的信道，以及经由所述第一和所述一个或多个第二波束形成的信道来发送包括所述消息的多个信号。

32. 发明授权

US07496386B2 Rechargeable battery facilitated customer-premises equipment 有权
标题翻译：可充电电池方便客户端设备
公开(公告)号：US07496386B2
公开(公告)日：2009-02-24
申请号：US11703371
申请日：2007-02-07
申请人： Qingwen Liu , John Grabner , Hang Jin
发明人： Qingwen Liu , John Grabner , Hang Jin
IPC分类号： H04B1/38
CPC分类号： H04W52/0296 , H02J7/34 , H04M19/08 , H04W52/146 , H04W52/36 , H04W52/52 , H04W88/02 , H04W92/10 , Y02D70/142 , Y02D70/144
摘要： A Customer-Premises Equipment (CPE) device includes a power supply for generating a first power at a first voltage level; a rechargeable battery for generating a second power at a second voltage level; and a power amplifier coupled to the power supply and the rechargeable battery for receiving the first power and the second power to output a third power at a third voltage level higher than either the first voltage level or the second voltage level, wherein the third power is utilized to transmit signals from the CPE device to a BTS.
摘要翻译：客户驻地设备（CPE）设备包括用于在第一电压电平产生第一电力的电源; 用于在第二电压电平产生第二功率的可再充电电池; 以及耦合到所述电源和所述可再充电电池的功率放大器，用于接收所述第一功率和所述第二功率以在高于所述第一电压电平或所述第二电压电平的第三电压电平输出第三功率，其中所述第三功率为用于将信号从CPE设备发送到BTS。

33. 发明申请

US20080089274A1 Method for Improving the Performance of a Wireless Communications Network by Using Beamformed Virtual Antennas 有权
标题翻译：通过使用波束形虚拟天线提高无线通信网络性能的方法
公开(公告)号：US20080089274A1
公开(公告)日：2008-04-17
申请号：US11743510
申请日：2007-05-02
申请人： Qingwen Liu , Hang Jin
发明人： Qingwen Liu , Hang Jin
IPC分类号： H04Q7/00
CPC分类号： H04W16/28 , H04B7/024 , H04B7/0617 , H04L1/0077 , H04L1/0618 , H04W36/18
摘要： The present invention discloses a method for wireless communications network performance in transmitting a message. The method comprises creating a first beamformed virtual antenna for the serving BTS and one or more second beamformed virtual antennas for the one or more target BTSs when one or more predetermined conditions are met, establishing a first beamformed channel by using the first beamformed virtual antenna, establishing one or more second beamformed channels by using the one or more second beamformed virtual antennas, and transmitting a plurality of signals comprising the message via the first and the one or more second beamformed channels.
摘要翻译：本发明公开了一种无线通信网络在发送消息中的性能的方法。该方法包括：当满足一个或多个预定条件时，为服务BTS创建第一波束形成的虚拟天线和用于一个或多个目标BTS的一个或多个第二波束形成的虚拟天线，通过使用第一波束形成的虚拟天线建立第一波束形成的信道，通过使用所述一个或多个第二波束形成的虚拟天线来建立一个或多个第二波束形成的信道，以及经由所述第一和所述一个或多个第二波束形成的信道来发送包括所述消息的多个信号。

34. 发明授权

US08725084B2 MIMO mode switch management for beamformed MIMO systems 有权
标题翻译：用于波束形成MIMO系统的MIMO模式切换管理
公开(公告)号：US08725084B2
公开(公告)日：2014-05-13
申请号：US12623932
申请日：2009-11-23
申请人： Hanqing Lou , Li Guo , Genyuan Wang , Hang Jin , Yanxin Na
发明人： Hanqing Lou , Li Guo , Genyuan Wang , Hang Jin , Yanxin Na
IPC分类号： H04B7/00
CPC分类号： H04B7/0689
摘要： Techniques are provided herein for improving multiple-input multiple-output (MIMO) wireless communications, and in particular to dynamically determining when to switch MIMO transmission modes on a communication link between two devices that are capable of supporting multiple MIMO transmission modes. A base station receives from a client device one or more signals containing information representing a first signal-to-noise ratio (SNR) measurement and a second SNR measurement made by the client device. The first SNR measurement is associated with a first MIMO transmission mode and the second SNR measurement is associated with a second MIMO transmission mode. The base station computes a MIMO channel quality indicator from the first SNR measurement and the second SNR measurement, and evaluates the MIMO channel quality indicator to determine whether to switch MIMO transmission modes for transmissions to the client device.
摘要翻译：本文提供了用于改进多输入多输出（MIMO）无线通信的技术，特别是动态地确定何时在能够支持多个MIMO传输模式的两个设备之间的通信链路上切换MIMO传输模式。基站从客户端设备接收包含表示第一信噪比（SNR）测量的信息的一个或多个信号和由客户端设备进行的第二SNR测量。第一SNR测量与第一MIMO传输模式相关联，并且第二SNR测量与第二MIMO传输模式相关联。基站从第一SNR测量和第二SNR测量计算MIMO信道质量指示符，并且评估MIMO信道质量指示符，以确定是否将用于传输的MIMO传输模式切换到客户端设备。

35. 发明授权

US08121211B2 Adaptive switching techniques for hybrid automatic repeat request systems 有权
标题翻译：用于混合自动重传请求系统的自适应交换技术
公开(公告)号：US08121211B2
公开(公告)日：2012-02-21
申请号：US12054502
申请日：2008-03-25
申请人： Hanqing Lou , Ahmadreza Hedayat , Genyuan Wang , Hang Jin
发明人： Hanqing Lou , Ahmadreza Hedayat , Genyuan Wang , Hang Jin
IPC分类号： H04B7/02
CPC分类号： H04L1/1825 , H04B7/0671 , H04L1/06 , H04L1/1812 , H04L5/0007
摘要： An adaptive transmission selection technique is provided. A retransmission scheme is selected for a multiple-input-multiple-output wireless system. A plurality of communication techniques is provided for when a first device needs to retransmit a signal to a second device. The first device determines when the original signal, transmitted to the second device using beamforming techniques, needs to be retransmitted to the second device. If a retransmission is needed, the first device determines channel conditions with respect to the second device. The first device selects a retransmission scheme from a plurality of transmission schemes based on the channel conditions for retransmitting the signal. A first retransmission technique is selected when the channel conditions are static. A second retransmission technique is selected when the channel conditions are relatively slowly changing, and a third retransmission technique is selected when the channel conditions are relatively quickly changing.
摘要翻译：提供了自适应传输选择技术。为多输入多输出无线系统选择重传方案。当第一设备需要向第二设备重发信号时，提供多种通信技术。第一设备确定何时需要将发送到使用波束成形技术的第二设备的原始信号重传到第二设备。如果需要重传，则第一设备确定相对于第二设备的信道条件。第一设备基于用于重传信号的信道条件从多个传输方案中选择重发方案。当信道条件是静态时，选择第一种重传技术。当信道条件相对缓慢地改变时，选择第二重传技术，并且当信道条件相对快速变化时选择第三重传技术。

36. 发明申请

US20110170521A1 Dynamic Downlink Beamforming Weight Estimation for Beamforming-Space Time Code Transmissions 有权
标题翻译：波束形成 - 时空码传输的动态下行波束成形重量估计
公开(公告)号：US20110170521A1
公开(公告)日：2011-07-14
申请号：US12687181
申请日：2010-01-14
申请人： Genyuan Wang , Li Guo , Hanqing Lou , Hang Jin
发明人： Genyuan Wang , Li Guo , Hanqing Lou , Hang Jin
IPC分类号： H04J3/00
CPC分类号： H04B7/0617 , H04B7/063 , H04W72/046
摘要： Techniques are provided to improve wireless beamformed communication between first and second wireless communication devices. At a plurality of antennas of the first wireless communication device (e.g., a base station) uplink transmissions sent from the second wireless communication device (e.g., a client or mobile device or station) are received. The first wireless communication device generates a downlink beamforming weight vector from received uplink transmissions, and computes a covariance matrix for received uplink transmissions. The first wireless communication device stores history information based on the covariance matrices for received uplink transmissions. The first wireless communication device computes first and second beamforming-space time code weight vectors based on the covariance matrix for an uplink transmission received in a current frame and the history information. The first wireless communication device uses the first and second beamforming-space time code weight vectors for a beamforming-space time code transmission technique to send a downlink transmission to the second wireless communication device.
摘要翻译：提供技术来改善第一和第二无线通信设备之间的无线波束形成的通信。在第一无线通信设备（例如，基站）的多个天线处，从第二无线通信设备（例如，客户机或移动设备或站）发送的上行链路传输被接收。第一无线通信设备从接收到的上行链路传输生成下行链路波束成形加权向量，并且计算用于接收的上行链路传输的协方差矩阵。第一无线通信设备基于接收到的上行链路传输的协方差矩阵存储历史信息。第一无线通信设备基于用于当前帧中接收的上行链路传输的协方差矩阵和历史信息来计算第一和第二波束形成空间时间码权重向量。第一无线通信设备使用波束形成空间时间码传输技术的第一和第二波束形成空间时间码权重向量来向第二无线通信设备发送下行链路传输。

37. 发明申请

US20110013711A1 Beamforming Weight Estimation Using Wideband Multipath Direction of Arrival Analysis 有权
标题翻译：使用宽带多径方向到达分析的波束成形重量估计
公开(公告)号：US20110013711A1
公开(公告)日：2011-01-20
申请号：US12502607
申请日：2009-07-14
申请人： Genyuan Wang , Li Guo , Ahmadreza Hedayat , Hang Jin
发明人： Genyuan Wang , Li Guo , Ahmadreza Hedayat , Hang Jin
IPC分类号： H04L1/02 , H04M1/00
CPC分类号： H04B7/0617 , H04B7/0439 , H04B7/086
摘要： Techniques are provided for computing downlink beamforming weights based on the received data at a base station from a mobile station in a MIMO communication system. An uplink transmission is received at a plurality of antennas at a first communication device from a second communication device, where the uplink transmission comprises a plurality of uplink subbands. The uplink spatial signature is estimated for each of the plurality of uplink subbands. The uplink spatial signature is decomposed into a plurality of direction of arrival (DOA) components for each uplink subband using a transform. Data representing multiple propagation paths between the first communication device and the second communication device is computed for each DOA component. A plurality of direction of departure (DOD) components for each of a plurality of downlink subbands is computed based on the data representing the multiple propagation paths. A downlink spatial signature for each downlink subband from the plurality of DOD components is computed using an inverse of the transform. Downlink beamforming weights are computed for each of the plurality of downlink subbands based on the downlink spatial signature, where the downlink beamforming weights are for use by the first communication device when beamforming a downlink transmission via the plurality of antennas of the first communication device to the second communication device.
摘要翻译：提供了用于基于MIMO通信系统中的移动台在基站处接收到的数据来计算下行链路波束成形权重的技术。在来自第二通信设备的第一通信设备的多个天线处接收上行链路传输，其中上行链路传输包括多个上行链路子带。针对多个上行链路子带中的每一个估计上行链路空间特征。使用变换将上行链路空间特征分解为每个上行链路子带的多个到达方向（DOA）分量。针对每个DOA分量计算代表第一通信设备和第二通信设备之间的多个传播路径的数据。基于表示多个传播路径的数据来计算多个下行链路子带中的每一个的多个出发方向（DOD）分量。使用变换的倒数来计算来自多个DOD分量的每个下行链路子带的下行链路空间特征。基于下行链路空间特征，针对多个下行链路子带中的每一个计算下行链路波束形成权重，其中下行链路波束赋形权重由第一通信设备使用时，当波束成形通过第一通信设备的多个天线的下行链路传输到第二通信设备。

38. 发明申请

US20100321237A1 Beamforming Techniques to Improve Ranging Signal Detection 有权
标题翻译：波束成形技术提高测距信号检测
公开(公告)号：US20100321237A1
公开(公告)日：2010-12-23
申请号：US12489848
申请日：2009-06-23
申请人： Yanxin Na , Genyuan Wang , Hang Jin
发明人： Yanxin Na , Genyuan Wang , Hang Jin
IPC分类号： H01Q3/00
CPC分类号： H04B7/086
摘要： Techniques are provided herein to detect ranging codes in energy received at a plurality of antennas of a wireless communication device. Energy is received at a plurality of antennas of a first wireless communication device and received signals are generated from the received energy. The received energy comprises a ranging transmission from one or more second wireless communication devices, wherein each ranging transmission comprises a ranging code selected from a set of possible ranging codes. A ranging code specific receive beamforming weight vector is generated for a ranging code in the set of possible ranging codes from the received signals. The ranging code specific receive beamforming weight vector is applied to corresponding ranging code specific signals derived from the received signals to produce ranging code specific beamformed signals. The ranging code specific beamformed signals are correlated to produce correlation results. A determination is made as to whether the ranging code is present in the received energy based on the correlation results.
摘要翻译：本文提供技术来检测在无线通信设备的多个天线处接收的能量中的测距码。在第一无线通信设备的多个天线处接收能量，并且从接收的能量产生接收的信号。所接收的能量包括来自一个或多个第二无线通信设备的测距传输，其中每个测距传输包括从一组可能测距码中选择的测距码。针对来自接收信号的可能测距码集合中的测距码产生测距码特定接收波束成形加权向量。测距码特定接收波束成形加权向量被应用于从接收信号导出的对应测距码特定信号，以产生测距码特定波束形成信号。测距码特定波束形成信号相关，产生相关结果。基于相关结果确定接收到的能量中是否存在测距码。

39. 发明授权

US07839817B2 Apparatus for detecting uplink ranging codes in a wireless communication system 有权
标题翻译：一种用于在无线通信系统中检测上行链路测距码的装置
公开(公告)号：US07839817B2
公开(公告)日：2010-11-23
申请号：US11711201
申请日：2007-02-26
申请人： Genyuan Wang , Hang Jin , Mansoor Ahmed , Daniel Wee
发明人： Genyuan Wang , Hang Jin , Mansoor Ahmed , Daniel Wee
IPC分类号： H04W4/00 , H04B7/216
CPC分类号： H04L27/2655 , H04L27/2657 , H04L27/2662 , H04L27/2675 , H04L27/2684
摘要： An apparatus for detecting uplink ranging codes includes a first transform unit for transforming data received from a mobile station to generate first outputs; a cross-correlation unit for comparing the first outputs with possible ranging codes to generate second outputs; a screening unit for selectively passing the second outputs representing parts of the received data that match the possible ranging codes; a second transform unit for transforming the second outputs from the screening unit to generate third outputs; and a detection unit for detecting the ranging codes for the received data based on the third outputs.
摘要翻译：一种用于检测上行链路测距码的装置，包括：第一变换单元，用于变换从移动站接收到的数据，以产生第一输出; 互相关单元，用于将第一输出与可能的测距码进行比较以产生第二输出; 筛选单元，用于选择性地传递表示与可能测距码匹配的接收数据的部分的第二输出; 第二变换单元，用于变换来自所述筛选单元的所述第二输出以产生第三输出; 以及检测单元，用于基于第三输出来检测所接收数据的测距码。

40. 发明申请

US20100246720A1 Channel Variation Detection of Wireless Channel for Adaptive Transmission Schemes 有权
标题翻译：用于自适应传输方案的无线信道的信道变化检测
公开(公告)号：US20100246720A1
公开(公告)日：2010-09-30
申请号：US12410659
申请日：2009-03-25
申请人： Genyuan Wang , Hang Jin
发明人： Genyuan Wang , Hang Jin
IPC分类号： H04L27/00
CPC分类号： H04L25/0202 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/20 , H04L25/0222
摘要： Techniques are provided to determine channel variation of a wireless channel between a first wireless communication device and a second wireless communication device. The first wireless communication device receives a wireless transmission sent by the second wireless communication device. Received data is recovered from the wireless transmission received at the first wireless communication device. The received data is processed with each of multiple channel variation compensations to produce corresponding processed received data subjected to respective ones of the multiple channel variation compensations. For symbols in the received data and in each of the processed received data, distances are computed to their closest symbols in a symbol constellation set used by the second wireless communication device in the wireless transmission. A corresponding distance metric is computed from the distances for symbols in the received data and from the distances for symbols in each of the processed received data. Thus, there is distance metric for the received data, and a distance metric for each of the processed received data. Channel variation of a wireless channel between the first wireless communication device and the second wireless communication device is estimated based on the distance metrics.
摘要翻译：提供技术来确定第一无线通信设备和第二无线通信设备之间的无线信道的信道变化。第一无线通信设备接收由第二无线通信设备发送的无线传输。从在第一无线通信设备处接收的无线传输中恢复接收的数据。接收的数据用多个信道变化补偿中的每一个进行处理，以产生经受多个信道变化补偿中的相应的一个的对应的经处理的接收数据。对于接收到的数据中的每个处理的接收数据中的符号，在无线传输中由第二无线通信设备使用的符号星座集中计算距离到其最近的符号。从接收到的数据中的符号的距离和每个处理的接收数据中的符号的距离计算相应的距离度量。因此，存在接收数据的距离度量，以及每个处理的接收数据的距离度量。基于距离度量来估计第一无线通信设备和第二无线通信设备之间的无线信道的信道变化。

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