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1. 发明申请

US20050101353A1 Method and system for enhancing reception of wireless communication signals 失效
标题翻译：用于增强无线通信信号接收的方法和系统
公开(公告)号：US20050101353A1
公开(公告)日：2005-05-12
申请号：US10948963
申请日：2004-09-23
申请人： Eldad Zeira , Donald Grieco , Robert Olesen , Ariela Zeira , Jung-Lin Pan , Aykut Bultan
发明人： Eldad Zeira , Donald Grieco , Robert Olesen , Ariela Zeira , Jung-Lin Pan , Aykut Bultan
IPC分类号： H01Q1/24 , H01Q3/26 , H01Q25/00 , H04B1/02 , H04B1/38 , H04B7/02 , H04B7/08 , H04B15/00 , H04B17/00 , H04L20060101 , H04M1/00 , H04M7/14 , H04Q7/20
CPC分类号： H01Q1/246 , H01Q3/2605 , H01Q25/00 , H04B7/088
摘要： A method and system is disclosed for enhancing reception of wireless communication signals. A beam pattern including at least one set of beams is generated. Where the beam pattern includes at least two sets of beams, the beam sets may be offset with respect to each other and alternated to enhance reception. Beams may be selected for data processing based on a signal-to-noise ratio (SNR) and may be maximal-ratio combined where signals from a single WTRU are detected within more than one beam and are used for data processing.
摘要翻译：公开了一种用于增强无线通信信号的接收的方法和系统。产生包括至少一组光束的光束图案。在波束图案包括至少两组波束的情况下，波束组可以相对于彼此偏移并交替以增强接收。可以基于信噪比（SNR）来选择光束进行数据处理，并且可以在多个波束内检测来自单个WTRU的信号并将其用于数据处理的情况下进行最大比组合。

2. 发明申请

US20060072677A1 Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system 有权
公开(公告)号：US20060072677A1
公开(公告)日：2006-04-06
申请号：US11201695
申请日：2005-08-11
申请人： Jaeyoung Kwak , Robert Olesen , Aykut Bultan , Eldad Zeira , Chang-Soo Koo , Fatih Ozluturk , Yuejin Huang , Kalpendu Pasad
发明人： Jaeyoung Kwak , Robert Olesen , Aykut Bultan , Eldad Zeira , Chang-Soo Koo , Fatih Ozluturk , Yuejin Huang , Kalpendu Pasad
IPC分类号： H04K1/10
CPC分类号： H04L1/0606 , H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/066 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0007 , H04L5/0023 , H04L5/006 , H04L27/156 , H04L27/2626 , H04L2027/0046 , Y02B70/30 , Y02D50/10
摘要： The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

3. 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。

4. 发明申请

US20070211815A1 METHOD AND APPARATUS FOR SCALING SOFT BITS FOR DECODING 审中-公开
标题翻译：用于解码软件位置的方法和装置
公开(公告)号：US20070211815A1
公开(公告)日：2007-09-13
申请号：US11683806
申请日：2007-03-08
申请人： Jung-Lin Pan , Donald Grieco , Nirav Shah , Robert Olesen
发明人： Jung-Lin Pan , Donald Grieco , Nirav Shah , Robert Olesen
IPC分类号： H04L1/02
CPC分类号： H04L25/067 , H04B7/0689 , H04L1/0003 , H04L1/0009 , H04L1/0606 , H04L1/0625 , H04L1/0631 , H04L1/0643 , H04L1/065 , H04L1/0668 , H04L5/023 , H04L25/03318 , H04L27/2647
摘要： A method and apparatus for scaling a soft bit for decoding in a wireless communication system are described. A scaling factor is calculated for a received symbol based on an estimated signal-to-noise ratio (SNR) of the received symbol and the scaling factor is applied to a soft bit of the received symbol. A multiple-input multiple-output (MIMO) scheme may be implemented to transmit multiple data streams. In such case, a soft bit of a received symbol on each data stream is scaled by a scaling factor for the received symbol on each data stream.
摘要翻译：描述用于在无线通信系统中缩放用于解码的软比特的方法和装置。基于接收到的符号的估计信噪比（SNR）来计算接收符号的缩放因子，并且将缩放因子应用于接收符号的软比特。可以实现多输入多输出（MIMO）方案来传输多个数据流。在这种情况下，在每个数据流上的接收符号的软比特被缩放为每个数据流上的接收符号的缩放因子。

5. 发明申请

US20060133530A1 Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a MIMO-OFDM system 有权
标题翻译：用于在MIMO-OFDM系统中组合空间频率块编码，空间复用和波束成形的方法和装置
公开(公告)号：US20060133530A1
公开(公告)日：2006-06-22
申请号：US11254358
申请日：2005-10-20
申请人： Jaeyoung Kwak , Chang-Soo Koo , Robert Olesen , Aykut Bultan , Fatih Ozluturk
发明人： Jaeyoung Kwak , Chang-Soo Koo , Robert Olesen , Aykut Bultan , Fatih Ozluturk
IPC分类号： H04L1/02
CPC分类号： H04L1/0606 , H04B7/0408 , H04B7/0413 , H04B7/0697 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/04 , H04L5/0007 , H04L25/0248 , H04L27/2601 , H04L27/2626 , H04L27/2647
摘要： A method and apparatus for combining space-frequency block coding (SFBC), spatial multiplexing (SM) and beamforming in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. The system includes a transmitter with a plurality of transmit antennas and a receiver with a plurality of receive antennas. The transmitter generates at least one data stream and a plurality of spatial streams. The number of generated spatial streams is based on the number of the transmit antennas and the number of the receive antennas. The transmitter determines a transmission scheme in accordance with at least one of SFBC, SM and beam forming. The transmitter transmits data in the data stream to the receiver based on the selected transmission scheme.
摘要翻译：一种用于在多输入多输出（MIMO）正交频分复用（OFDM）系统中组合空间频率块编码（SFBC），空间复用（SM）和波束形成的方法和装置。该系统包括具有多个发射天线的发射机和具有多个接收天线的接收机。发射机产生至少一个数据流和多个空间流。所生成的空间流的数量基于发射天线的数量和接收天线的数量。发射机根据SFBC，SM和波束形成中的至少一个确定传输方案。发射机根据所选择的传输方案向接收机发送数据流中的数据。

6. 发明申请

US20070211822A1 METHOD AND APPARATUS FOR IMPLEMENTING SPACE TIME PROCESSING WITH UNEQUAL MODULATION AND CODING SCHEMES 有权
标题翻译：用不平等调制和编码方案实现空间时间处理的方法和装置
公开(公告)号：US20070211822A1
公开(公告)日：2007-09-13
申请号：US11621755
申请日：2007-01-10
申请人： Robert Olesen , Eldad Zeira , Peter Voltz , Yongwen Yang , Qingyuan Dai , Chang-Soo Koo , I-Tai Lu , KunJu Tsai
发明人： Robert Olesen , Eldad Zeira , Peter Voltz , Yongwen Yang , Qingyuan Dai , Chang-Soo Koo , I-Tai Lu , KunJu Tsai
IPC分类号： H04L27/00 , H04L1/02
CPC分类号： H04L1/0643 , H04B7/0456 , H04B7/0619 , H04B7/0626 , H04B7/0669 , H04B7/0697 , H04B7/0837 , H04B7/0891 , H04B17/336 , H04L1/0003 , H04L1/0009 , H04L1/0606 , H04L1/0625 , H04L1/0631 , H04L27/2626 , H04L27/2647 , H04W84/12
摘要： A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.
摘要翻译：公开了一种用于实现具有不等调制和编码方案（MCS）或流依赖MCS的空间处理的方法和装置。输入数据可以被解析成多个数据流，并且对数据流执行空间处理以产生多个空间流。独立地选择每个数据流的MCS。空间流通过多个发射天线发射。可以对空间时间块编码（STBC），空间频率块编码（SFBC），准正交Alamouti编码，时间反转空间时间块编码，线性空间处理和循环延迟分集（CDD）的技术中的至少一种进行数据/空间流。然后可以将天线映射矩阵应用于空间流。空间流通过多个发射天线发射。可以基于与数据流相关联的每个空间流的信噪比来确定每个数据流的MCS。

7. 发明申请

US20070206689A1 METHOD AND APPARATUS FOR CHANNEL ESTIMATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM 审中-公开
标题翻译：正交频分复用系统中信道估计的方法与装置
公开(公告)号：US20070206689A1
公开(公告)日：2007-09-06
申请号：US11680959
申请日：2007-03-01
申请人： Chang-Soo Koo , Eldad Zeira , I-Tai Lu , Robert Olesen , Kun-Ju Tsai
发明人： Chang-Soo Koo , Eldad Zeira , I-Tai Lu , Robert Olesen , Kun-Ju Tsai
IPC分类号： H04K1/10
CPC分类号： H04L25/0216 , H04L25/0208 , H04L25/0212 , H04L25/0214 , H04L25/022 , H04L25/0232 , H04L27/2647
摘要： In an orthogonal frequency division multiplexing (OFDM) system, a frequency domain channel estimate for non-nullified subcarriers is converted to a time domain channel estimate. The number of taps L of a channel model is determined based on the time domain channel estimate. An improved time domain channel estimate is obtained by computing L tap coefficients of the channel model from the frequency domain channel estimate. An improved frequency domain channel estimate is obtained by performing a Fourier transform on the improved time domain channel estimate. Alternatively, a time domain truncation method may be performed selectively only if the signal-to-noise ratio (SNR) is below a threshold. Alternatively, a frequency domain channel estimate for pilot subcarriers are converted to a time domain channel estimate and an improved frequency domain channel estimate is obtained based on the number of pilot subcarriers and a delay spread.
摘要翻译：在正交频分复用（OFDM）系统中，对于非无效子载波的频域信道估计被转换为时域信道估计。基于时域信道估计来确定信道模型的抽头数L。通过从频域信道估计计算信道模型的L抽头系数来获得改进的时域信道估计。通过对改进的时域信道估计执行傅里叶变换来获得改进的频域信道估计。或者，只有当信噪比（SNR）低于阈值时，才可以选择性地执行时域截断方法。或者，将导频子载波的频域信道估计转换为时域信道估计，并且基于导频子载波的数量和延迟扩展获得改进的频域信道估计。

8. 发明申请

US20110142107A1 Rank Adaptive Cyclic Shift for Demodulation Reference Signal 审中-公开
标题翻译：用于解调参考信号的自适应循环移位
公开(公告)号：US20110142107A1
公开(公告)日：2011-06-16
申请号：US12813594
申请日：2010-06-11
申请人： Kyle Jung-Lin Pan , Allan Tsai , Robert Olesen , Sung-Hyuk Shin
发明人： Kyle Jung-Lin Pan , Allan Tsai , Robert Olesen , Sung-Hyuk Shin
IPC分类号： H04B17/00 , H04B1/38
CPC分类号： H04B7/0671 , H04B7/0894 , H04L25/0226
摘要： Systems and methods for generating a demodulation reference signal for use by user equipment configured with multiple antennas based on a rank of an antenna or an antenna port are disclosed. A rank for a user equipment device is determined indicating the number of spatial layers or antenna ports in use, and the value of the rank is used to generate a cyclic shift offset and a cyclic shift, that can then be used to generate a demodulation reference signal to be used in timeslots within each spatial layer of an uplink transmission. Orthogonal cover codes may be used in conjunction with a determined cyclic shift to generate a demodulation reference signal.
摘要翻译：公开了一种用于生成基于天线或天线端口的等级配置有多个天线的用户设备使用的解调参考信号的系统和方法。确定用户设备设备的等级，指示正在使用的空间层或天线端口的数量，并且使用该等级的值来产生循环移位偏移和循环移位，然后可以用于产生解调参考信号用于上行链路传输的每个空间层内的时隙。正交覆盖码可以与确定的循环移位结合使用，以产生解调参考信号。

9. 发明申请

US20060281422A1 Method and system for transmit power control in a multiple-input multiple-output wireless communication system 失效
标题翻译：多输入多输出无线通信系统中发射功率控制的方法和系统
公开(公告)号：US20060281422A1
公开(公告)日：2006-12-14
申请号：US11152511
申请日：2005-06-14
申请人： Jung-Lin Pan , Robert Olesen , Yingming Tsai
发明人： Jung-Lin Pan , Robert Olesen , Yingming Tsai
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H01Q1/2216 , H01Q21/28 , H04B7/0417 , H04B7/0623 , H04B7/063 , H04W52/248 , H04W52/42
摘要： The present invention is related to a method and system for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission and reception. The transmitter comprises a power allocation unit for controlling transmit power based on a feedback received from the receiver. The receiver comprises a channel estimator and a singular value decomposition (SVD) unit. The channel estimator generates a channel matrix from a signal received from the transmitter and the SVD unit decomposes the channel matrix into D, U and V matrices. The receiver sends a feedback generated based on output from the SVD unit to the transmitter for controlling the transmit power. The feedback may be one of an eigenvalue, a transmit power level or a power control bit or command. A hybrid scheme for selecting one of them based on channel condition may be implemented.
摘要翻译：本发明涉及一种用于多输入多输出（MIMO）无线通信系统中的发射功率控制的方法和系统。发射机和接收机都包括用于传输和接收的多个天线。发射机包括功率分配单元，用于基于从接收机接收的反馈来控制发射功率。接收机包括信道估计器和奇异值分解（SVD）单元。信道估计器从从发射机接收的信号中生成信道矩阵，并且SVD单元将信道矩阵分解为D，U和V矩阵。接收机将基于SVD单元的输出产生的反馈发送到发射机以控制发射功率。反馈可以是特征值，发射功率电平或功率控制位或命令之一。可以实现用于基于信道条件选择其中的一个的混合方案。

10. 发明申请

US20060281421A1 Method and apparatus for generating feedback information for transmit power control in a multiple-input multiple-output wireless communication system 失效
公开(公告)号：US20060281421A1
公开(公告)日：2006-12-14
申请号：US11152435
申请日：2005-06-14
申请人： Jung-Lin Pan , Robert Olesen , Yingming Tsai
发明人： Jung-Lin Pan , Robert Olesen , Yingming Tsai
IPC分类号： H01Q11/12
CPC分类号： H01Q3/2605
摘要： The present invention is related to a method and apparatus for generating feedback information for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission and reception. The transmitter comprises a power allocation unit for controlling transmit power based on a feedback received from the receiver. The receiver comprises a channel estimator and a singular value decomposition (SVD) unit. The channel estimator generates a channel matrix from a signal received from the transmitter and the SVD unit decomposes the channel matrix into D, U and V matrices. The receiver sends a feedback generated based on output from the SVD unit to the transmitter. The feedback may be one of an eigenvalue, a transmit power level or a power control bit or command. A hybrid scheme for selecting one of them based on channel condition may be implemented.

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