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1. 发明申请

US20080069281A1 STATISTICAL FEEDBACK FOR MIMO TRANSMIT BEAMFORMING 审中-公开
标题翻译：用于MIMO发射波束的统计反馈
公开(公告)号：US20080069281A1
公开(公告)日：2008-03-20
申请号：US11834984
申请日：2007-08-07
申请人： Robert Olesen , Yingxue Li
发明人： Robert Olesen , Yingxue Li
IPC分类号： H04L1/02
CPC分类号： H04B7/065 , H04B7/0417 , H04B7/0634
摘要： The present invention comprises a method of statistical feedback for Multiple In-Multiple Out (MIMO) transmit beamforming comprising combining a short term channel state information and long term statistics in deriving a precoding matrix. At least one measurable parameter is observed, and a forgetting factor is determined based upon the observed parameter.
摘要翻译：本发明包括一种用于多输入多输出（MIMO）发射波束成形的统计反馈的方法，其包括在导出预编码矩阵时组合短期信道状态信息和长期统计。观察到至少一个可测量的参数，并且基于观察到的参数确定遗忘因子。

2. 发明申请

US20070189151A1 METHOD AND APPARATUS FOR PERFORMING UPLINK TRANSMISSION IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
标题翻译：用于在多输入多输出单载波频分多址接入系统中执行上行链路传输的方法和装置
公开(公告)号：US20070189151A1
公开(公告)日：2007-08-16
申请号：US11627706
申请日：2007-01-26
申请人： Jung-Lin Pan , Donald Grieco , Robert Olesen , Yingxue Li
发明人： Jung-Lin Pan , Donald Grieco , Robert Olesen , Yingxue Li
IPC分类号： H04J11/00
CPC分类号： H04L1/0009 , H04L1/0067 , H04L1/0071 , H04L1/04 , H04L1/0643 , H04L1/0668 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04W72/1268
摘要： A method and apparatus for performing uplink transmission in a multiple-input multiple-output (MIMO) single carrier frequency division multiple access (SC-FDMA) system are disclosed. At a wireless transmit/receive unit (WTRU), input data is encoded and parsed into a plurality of data streams. After modulation and Fourier transform, one of transmit beamforming, space time coding (STC) and spatial multiplexing is selectively performed based on channel state information. Symbols are then mapped to subcarriers and transmitted via antennas. The STC may be space frequency block coding (SFBC) or space time block coding (STBC). Per antenna rate control may be performed on each data stream based on the channel state information. At a Node-B, MIMO decoding may be performed based on one of minimum mean square error (MMSE) decoding, MMSE-successive interference cancellation (SIC) decoding and maximum likelihood (ML) decoding. Space time decoding may be performed if STC is performed at the WTRU.
摘要翻译：公开了一种用于在多输入多输出（MIMO）单载波频分多址（SC-FDMA）系统中执行上行链路传输的方法和装置。在无线发射/接收单元（WTRU）处，输入数据被编码并解析成多个数据流。在调制和傅里叶变换之后，基于信道状态信息选择性地执行发射波束形成，空间时间编码（STC）和空间复用之一。然后将符号映射到子载波并经天线发送。 STC可以是空间频率块编码（SFBC）或空间时间块编码（STBC）。可以基于信道状态信息对每个数据流执行每个天线速率控制。在节点B处，可以基于最小均方误差（MMSE）解码，MMSE连续干扰消除（SIC）解码和最大似然（ML）解码）之一进行MIMO解码。如果在WTRU处执行STC，则可以执行空时解码。

3. 发明授权

US07917092B2 Beam selection apparatus and method in voice over internet protocol over switched beam wireless local area network 失效
标题翻译：光束选择装置和方法在语音互联网协议交换束无线局域网上
公开(公告)号：US07917092B2
公开(公告)日：2011-03-29
申请号：US11302299
申请日：2005-12-13
申请人： Ana Lucia Iacono , Arty Chandra , Inhyok Cha , John S. Chen , Yingxue Li , James C. Otto
发明人： Ana Lucia Iacono , Arty Chandra , Inhyok Cha , John S. Chen , Yingxue Li , James C. Otto
IPC分类号： H04B1/00 , H04B15/00 , H04B17/00 , H04M1/00 , H04W4/00
CPC分类号： H04B7/0608 , H04W16/28 , H04W72/046
摘要： An apparatus and a method for improving packet transmission and reducing latency in VoIP over WLAN using switched beam antennas having multiple directional antenna beams are disclosed. In an access point having a switched beam antenna, or other smart antenna system, the present invention extends the coverage area of an access point for authentication and association of a new WTRU, extends the access points coverage area during in session transmissions with a WTRU, and adjusts data rates. The method also controls Contention Period (CP)/Contention Free Period (CFP) timing amongst beams emanating from an access point having a switched beam antenna, or other smart antenna system. Fast diversity switching, frame level switching, lowered data rates, and scanning multiple directional antenna beams for the optimum transmission beam are disclosed to improve beam selection and packet transmission.
摘要翻译：公开了一种使用具有多个定向天线波束的切换波束天线来改善分组传输并减少VoIP中的VoIP延迟的装置和方法。在具有切换波束天线或其它智能天线系统的接入点中，本发明扩展用于新WTRU的认证和关联的接入点的覆盖区域，在与WTRU的会话传输期间扩展接入点覆盖区域，并调整数据速率。该方法还控制从具有切换波束天线或其他智能天线系统的接入点发出的波束之间的竞争周期（CP）/无竞争周期（CFP）定时。公开了快速分集切换，帧级切换，降低数据速率和扫描用于最佳传输波束的多方向天线波束，以改善波束选择和分组传输。

4. 发明授权

US07792207B2 Communication device with smart antenna using a quality-indication signal 有权
标题翻译：使用智能天线的通信设备使用质量指示信号
公开(公告)号：US07792207B2
公开(公告)日：2010-09-07
申请号：US12010655
申请日：2008-01-28
申请人： Haim Harel , Yingxue Li , Alexander Segalovitz
发明人： Haim Harel , Yingxue Li , Alexander Segalovitz
IPC分类号： H04B7/02 , H04B7/00
CPC分类号： H04W52/221 , H04B7/0623 , H04B7/0632 , H04W52/16 , H04W52/34 , H04W52/42
摘要： A mobile communication device may transmit a signal using a plurality of antenna elements, the signals differing by a transmit diversity parameter, e.g., a phase difference. The mobile communication device may receive a quality-indication signal from a basestation, e.g., a power control bit or signal. A sequence of the power control bits or signals may be used to provide feedback to the mobile communication device to determine a change in a transmit diversity parameter.
摘要翻译：移动通信设备可以使用多个天线元件发送信号，所述信号由发射分集参数（例如，相位差）区分开。移动通信设备可以从基站（例如，功率控制位或信号）接收质量指示信号。可以使用功率控制位或信号的序列来向移动通信设备提供反馈以确定发射分集参数的变化。

5. 发明授权

US07505741B2 Processing diversity signals using a delay 有权
标题翻译：使用延迟处理分集信号
公开(公告)号：US07505741B2
公开(公告)日：2009-03-17
申请号：US10696988
申请日：2003-10-30
申请人： Yingxue Li , Haim Harel
发明人： Yingxue Li , Haim Harel
IPC分类号： H04B1/02
CPC分类号： H04B7/0894 , H04B1/7115 , H04B1/7117 , H04B7/0671
摘要： Processing a downlink signal includes receiving a downlink signal at the antennas of a mobile device, where each antenna generates a diversity signal associated with the downlink signal, and where the downlink signal includes information. Diversity signals are generated and a delay of less than one chip duration is applied to at least one of the diversity signals. The diversity signals are then processed to obtain the information. Processing a transmit signal includes receiving a transmit signal at a splitter, where the transmit signal includes information. The transmit signal is split into split signals. At least one delay is applied to at least one of the split signals to yield transmit diversity signals, and the transmit diversity signals are transmitted.
摘要翻译：处理下行链路信号包括在移动设备的天线处接收下行链路信号，其中每个天线产生与下行链路信号相关联的分集信号，并且其中下行链路信号包括信息。产生分集信号，并且对至少一个分集信号应用小于一个码片持续时间的延迟。然后处理分集信号以获得信息。处理发射信号包括在分路器处接收发射信号，其中发射信号包括信息。发射信号被分成分裂信号。对至少一个分割信号施加至少一个延迟以产生发射分集信号，并且发射发射分集信号。

6. 发明申请

US20080181328A1 Communication device with smart antenna using a quality-indication signal 有权
公开(公告)号：US20080181328A1
公开(公告)日：2008-07-31
申请号：US12010655
申请日：2008-01-28
申请人： Haim Harel , Yingxue Li , Alexander Segalovitz
发明人： Haim Harel , Yingxue Li , Alexander Segalovitz
IPC分类号： H04B7/02 , H04L27/00 , H04B7/185 , H04B7/00
CPC分类号： H04W52/221 , H04B7/0623 , H04B7/0632 , H04W52/16 , H04W52/34 , H04W52/42
摘要： Communication is performed for a first communication device having a set of antenna elements. A quality-indication signal is received from a second communication device (e.g., a basestation). A complex weighting is calculated based on the quality-indication signal. A pre-transmission signal is modified based on the complex weighting to produce a set of modified-pre-transmission signals. Each modified pre-transmission signal from the set of modified-pre-transmission signals is uniquely associated with an antenna element from the set of antenna elements. The set of modified-pre-transmission signals is sent from the set of antenna elements to produce a transmitted signal. The complex weighting is associated with a total power of the transmitted power and at least one from a phase rotation and a power ratio associated with each antenna element from the set of antenna elements. For example, in CDMA based systems, a fast feedback from the basestation—the power control indication—can be used by a subscriber communication device for this transmission diversity method in such a way that provides the desired signal quality at the basestation, without necessarily responding to fading nulls by mobile unit power output increase, but rather, by manipulating the weights of the mobile transmitter antenna array. Thus, a significant reduction in average and peak mobile power level is achieved, enhancing network capacity, battery life, and radiation hazards.

7. 发明授权

US07333421B2 OFDM-MIMO communication system using smart spatial symbol mapping and associated methods 失效
标题翻译： OFDM-MIMO通信系统采用智能空间符号映射及相关方法
公开(公告)号：US07333421B2
公开(公告)日：2008-02-19
申请号：US11358618
申请日：2006-02-21
申请人： Yingxue Li
发明人： Yingxue Li
IPC分类号： H04B7/02 , H04J11/00
CPC分类号： H04B7/02 , H04L1/0618 , H04L5/0025 , H04L5/0046 , H04L27/2626 , H04L27/2647
摘要： A transmitter in an OFDM-MIMO wireless communication system uses multiple antennas to transmit each data stream. Before the coded binary bits are mapped into channel symbols, they are divided into two groups. One group is mapped to a channel symbol as in a conventional system. Another group of binary bits is used to generate a spatial mapping index. The spatial mapping index determines which antenna is to be used to transmit the channel symbol for each subcarrier. Effectively, information bits are jointly represented by a combination of a channel symbol and an antenna that transmits the channel symbol. Therefore, to achieve the same data rate, a smaller signal constellation is required. In addition, spatial diversity can be achieved which is similar to traditional switching diversity. The number of non-zero subcarriers is reduced by half on average, which results in a lower peak to average ratio than conventional OFDM systems.
摘要翻译： OFDM-MIMO无线通信系统中的发射机使用多个天线来传送每个数据流。在将编码的二进制位映射到通道符号之前，将它们分成两组。一个组被映射到一个通道符号，就像传统的系统一样。另一组二进制位用于生成空间映射索引。空间映射索引确定哪个天线将用于发送每个子载波的信道符号。实际上，信息位由发送信道符号的信道符号和天线的组合共同表示。因此，为了达到相同的数据速率，需要较小的信号星座。此外，可以实现类似于传统交换分集的空间分集。非零子载波的数量平均减少一半，这导致比传统OFDM系统更低的峰均比。

8. 发明授权

US07321636B2 Communication device with smart antenna using a quality-indication signal 有权
标题翻译：使用智能天线的通信设备使用质量指示信号
公开(公告)号：US07321636B2
公开(公告)日：2008-01-22
申请号：US10141342
申请日：2002-05-09
申请人： Haim Harel , Yingxue Li , Alexander Segalovitz
发明人： Haim Harel , Yingxue Li , Alexander Segalovitz
IPC分类号： H04L27/00 , H04L1/02 , H04B1/02 , H04B7/00
CPC分类号： H04W52/221 , H04B7/0623 , H04B7/0632 , H04W52/16 , H04W52/34 , H04W52/42
摘要： Communication is performed for a first communication device having a set of antenna elements. A quality-indication signal is received from a second communication device. A complex weighting is calculated based on the quality-indication signal. A pre-transmission signal is modified based on the complex weighting to produce a set of modified-pre-transmission signals. Each modified pre-transmission signal from the set of modified-pre-transmission signals is uniquely associated with an antenna element from the set of antenna elements. The set of modified-pre-transmission signals is sent from the set of antenna elements to produce a transmitted signal.
摘要翻译：对具有一组天线元件的第一通信设备执行通信。从第二通信设备接收质量指示信号。基于质量指示信号计算复数加权。基于复加权来修改预传输信号以产生一组经修改的预传输信号。来自修改后的预传输信号的每个经修改的预发射信号与天线元件集合中的天线元件唯一地相关联。经修改的预传输信号的集合从天线元件组发送以产生发射信号。

9. 发明申请

US20060203789A1 Beam selection apparatus and method in voice over internet protocol over switched beam wireless local area network 失效
标题翻译：光束选择装置和方法在语音互联网协议交换束无线局域网上
公开(公告)号：US20060203789A1
公开(公告)日：2006-09-14
申请号：US11302299
申请日：2005-12-13
申请人： Ana Iacono , Arty Chandra , Inhyok Cha , John Chen , Yingxue Li , James Otto
发明人： Ana Iacono , Arty Chandra , Inhyok Cha , John Chen , Yingxue Li , James Otto
IPC分类号： H04Q7/24 , H04L12/66
CPC分类号： H04B7/0608 , H04W16/28 , H04W72/046
摘要： An apparatus and a method for improving packet transmission and reducing latency in VoIP over WLAN using switched beam antennas having multiple directional antenna beams are disclosed. In an access point having a switched beam antenna, or other smart antenna system, the present invention extends the coverage area of an access point for authentication and association of a new WTRU, extends the access points coverage area during in session transmissions with a WTRU, and adjusts data rates. The method also controls Contention Period (CP)/Contention Free Period (CFP) timing amongst beams emanating from an access point having a switched beam antenna, or other smart antenna system. Fast diversity switching, frame level switching, lowered data rates, and scanning multiple directional antenna beams for the optimum transmission beam are disclosed to improve beam selection and packet transmission.
摘要翻译：公开了一种使用具有多个定向天线波束的切换波束天线来改善分组传输并减少VoIP中的VoIP延迟的装置和方法。在具有切换波束天线或其它智能天线系统的接入点中，本发明扩展用于新WTRU的认证和关联的接入点的覆盖区域，在与WTRU的会话传输期间扩展接入点覆盖区域，并调整数据速率。该方法还控制从具有切换波束天线或其他智能天线系统的接入点发出的波束之间的竞争周期（CP）/无竞争周期（CFP）定时。公开了快速分集切换，帧级切换，降低数据速率和扫描用于最佳传输波束的多方向天线波束，以改善波束选择和分组传输。

10. 发明申请

US20060094418A1 Communicating signals according to a quality indicator and a time boundary indicator 有权
公开(公告)号：US20060094418A1
公开(公告)日：2006-05-04
申请号：US10983292
申请日：2004-11-04
申请人： Phil Chen , Yingxue Li
发明人： Phil Chen , Yingxue Li
IPC分类号： H04B1/00 , H04B15/00 , H04Q7/20
CPC分类号： H04L1/0001 , H04B7/0613 , H04L1/0026 , H04W52/54
摘要： One or more quality indicators are established at a first communication device having antenna elements. The quality indicators indicate a quality of one or more communication links between the first communication device and one or more second communication devices. A modification is determined according to the quality indicators, where the modification describes at least one adjustment of one or more modulation features. A time boundary indicator indicating a boundary of a time period is received. At least some of a set of signals are modulated in accordance with the modification and in response to the time boundary indicator, where a signal is associated with an antenna element. The set of signals is sent from the antenna elements to yield a transmitted signal.

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