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1. 发明授权

US09735844B2 Channel feedback for coordinated multi-point transmissions 有权
公开(公告)号：US09735844B2
公开(公告)日：2017-08-15
申请号：US13467596
申请日：2012-05-09
申请人： Runhua Chen , Vikram Chandrasekhar , Eko Onggosanusi
发明人： Runhua Chen , Vikram Chandrasekhar , Eko Onggosanusi
IPC分类号： H04L12/26 , H04B7/024 , H04B7/06 , H04L5/00
CPC分类号： H04B7/024 , H04B7/0626 , H04B7/063 , H04B7/0636 , H04B7/0639 , H04B7/0647 , H04L5/006
摘要： A method of Coordinated Multipoint (CoMP) communication between a base station having a plurality of points with at least one user equipment (UE). At least one UE receives at least one transmission from the base station having the plurality of points. This UE measures downlink channel state information for each of the plurality of points including a rank indicator (RI), a precoding matrix indicator (PMI) and a channel quality indicator (CQI). This UE transmits the downlink channel state information in an uplink feedback channel to the base station.

2. 发明申请

US20120269278A1 DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT ENHANCEMENTS FOR SINGLE-CELL WITH REMOTE RADIO HEADS 有权
标题翻译：下行多路输入多路输出增强型单电源与远程无线电头
公开(公告)号：US20120269278A1
公开(公告)日：2012-10-25
申请号：US13451718
申请日：2012-04-20
申请人： Eko Onggosanusi , Vikram Chandrasekhar , Runhua Chen
发明人： Eko Onggosanusi , Vikram Chandrasekhar , Runhua Chen
IPC分类号： H04B7/02
CPC分类号： H04B7/0469 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04B7/0665 , H04B7/0691 , H04B7/10 , H04W72/1294
摘要： A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the NT-by-N precoding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment.
摘要翻译：基站为多个用户设备中的每一个选择至少一个地理上分离的天线的子集。基站至少形成包括调制符号的数据流层，通过与NT-by-N预编码矩阵相乘对数据流进行预编码，其中N是所述层的数量，NT是发射天线单元的数量，并且传输预编码经由选择的地理上分离的天线到用户设备的数据流层。基站通过较高层无线电资源控制或经由下行链路授权机制向多个地理上分离的天线的子集发出信号。基站可选地不向相应的移动用户设备发送多个地理上分离的天线的子集。

3. 发明授权

US07698616B2 MIMO Hybrid-ARQ using basis hopping 有权
标题翻译： MIMO混合ARQ使用基跳频
公开(公告)号：US07698616B2
公开(公告)日：2010-04-13
申请号：US12244665
申请日：2008-10-02
申请人： Eko Onggosanusi , Yan Hui , Anand Dabak , Gibong Jeong
发明人： Eko Onggosanusi , Yan Hui , Anand Dabak , Gibong Jeong
IPC分类号： G08C25/02 , H04L1/08 , H03M13/00
CPC分类号： H04L1/0675 , H04L1/0001 , H04L1/0003 , H04L1/06 , H04L1/1607 , H04L1/1816 , H04L1/1819
摘要： A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device (100) includes a receiver section (114) for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (110). The new basis that is selected is then used by a linear transformation unit (106) in the retransmission of the information.
摘要翻译：为多输入多输出（MIMO）系统提供混合自动重传请求（H-ARQ）技术。该技术在重发时改变基础（V），这有助于减少重传时的错误概率。该基础跳频技术提供了改进的性能增益，而不会显着提高设计复杂度。在一个实施例中，通信设备（100）包括用于响应于由通信设备的发射机部分发送的信息而接收确认（ACK）或非确认（NACK）信号的接收机部分（114）。如果接收到NACK，则从存储在基本设置单元（110）中的一组基础中选择新的基础。所选择的新基准然后由线性变换单元（106）在信息的重传中使用。

4. 发明申请

US20070183386A1 Reference Signal Sequences and Multi-User Reference Signal Sequence Allocation 审中-公开
标题翻译：参考信号序列和多用户参考信号序列分配
公开(公告)号：US20070183386A1
公开(公告)日：2007-08-09
申请号：US11461982
申请日：2006-08-02
申请人： Tarik Muharemovic , Eko Onggosanusi , Aris Papasakellariou
发明人： Tarik Muharemovic , Eko Onggosanusi , Aris Papasakellariou
IPC分类号： H04B1/00 , H04B7/208
CPC分类号： H04L5/023 , H04L27/2613 , H04W72/04 , H04W74/00
摘要： Embodiments of the invention provide method for allocating CAZAC pilot (reference signal) sequences in multiple access OFDMA systems, or alternatively, in multiple access DFT-spread OFDM(A) systems (or SC-FDMA). Reference signal transmissions from different mobiles can either be distinguished by use of disjoint sub-carriers (frequency division orthogonality), or alternatively by use of distinct cyclic shifts of one base CAZAC sequence. In a wireless cellular network, neighboring cells should utilize different CAZAC sequences, in order to mitigate out-of-cell interference.
摘要翻译：本发明的实施例提供了用于在多接入OFDMA系统中分配CAZAC导频（参考信号）序列的方法，或者在多址DFT扩展OFDM（A）系统（或SC-FDMA）中分配CAZAC导频（参考信号）序列。可以通过使用不相交的子载波（频分复用性）来区分来自不同移动台的参考信号传输，或者通过使用一个基本CAZAC序列的不同的循环移位来区分来自不同移动台的参考信号传输。在无线蜂窝网络中，相邻小区应该利用不同的CAZAC序列，以便减轻小区外的干扰。

5. 发明申请

US20060285484A1 Pilot Design and Channel Estimation 有权
标题翻译：导频设计和信道估计
公开(公告)号：US20060285484A1
公开(公告)日：2006-12-21
申请号：US11424939
申请日：2006-06-19
申请人： Aris Papasakellariou , Timothy Schmidl , Eko Onggosanusi , Anand Dabak
发明人： Aris Papasakellariou , Timothy Schmidl , Eko Onggosanusi , Anand Dabak
IPC分类号： H04J11/00
CPC分类号： H04L1/06 , H04B7/0452 , H04B7/12 , H04L5/0007 , H04L5/0048 , H04L25/0226
摘要： Embodiments of the invention provide method and apparatus for generating a structure in an orthogonal frequency division multiplexing communication system having a transmitter with a least one transmitting antenna, said method comprising; composing a frame with a time domain and a frequency domain, wherein the frame has a transmission time interval in the time domain and locating a pilot signal, having pilot power level, from a first at least one antenna into two orthogonal frequency division multiplexing symbols of said frame.
摘要翻译：本发明的实施例提供了一种用于在具有至少一个发射天线的发射机的正交频分复用通信系统中生成结构的方法和装置，所述方法包括：构成具有时域和频域的帧，其中所述帧具有时域中的传输时间间隔，并且将具有导频功率电平的导频信号从第一至少一个天线定位到两个正交频分复用符号说框架

6. 发明申请

US20050232174A1 Linear interference cancellation receiver for edge systems 审中-公开
标题翻译：用于边缘系统的线性干扰消除接收器
公开(公告)号：US20050232174A1
公开(公告)日：2005-10-20
申请号：US11108412
申请日：2005-04-18
申请人： Eko Onggosanusi , Timothy Schmidl , Anand Dabak
发明人： Eko Onggosanusi , Timothy Schmidl , Anand Dabak
IPC分类号： H04B1/707 , H04B3/20
CPC分类号： H04L27/0012 , H04B1/7105 , H04L25/0224 , H04L25/0328 , H04L25/03337 , H04L27/2338
摘要： A method for providing interference suppression in a communication device includes receiving a signal, determining if the received signal comprises a Gaussian Minimum Shift Keying (GMSK) or an 8 phase shift keying (8PSK) signal. Over sampling and inphase and quadrature phase separation with real-valued signal processing on the received signal is performed whenever the received signal is determined to be a GMSK signal. Oversampling with complex-valued signal processing on the received signal is performed whenever the received signal is determined to be an 8PSK signal. A receiver is also disclosed that provides for interference suppression.
摘要翻译：一种用于在通信设备中提供干扰抑制的方法包括接收信号，确定所接收的信号是否包括高斯最小移频键控（GMSK）或8相移键控（8PSK）信号。每当接收到的信号被确定为GMSK信号时，执行对接收信号的实数信号处理的过采样和同相和正交相位分离。每当接收信号被确定为8PSK信号时，对接收信号进行复值信号处理的过采样。还公开了提供干扰抑制的接收机。

7. 发明授权

US07933342B2 Multipath equalization for MIMO multiuser systems 有权
标题翻译： MIMO多用户系统的多路径均衡
公开(公告)号：US07933342B2
公开(公告)日：2011-04-26
申请号：US10173282
申请日：2002-06-17
申请人： Tarik Muharemovic , Eko Onggosanusi , Anand Dabak
发明人： Tarik Muharemovic , Eko Onggosanusi , Anand Dabak
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L25/03178 , H04B1/71072 , H04L1/06 , H04L2025/03624
摘要： Interference rejection (85) can be applied to a wireless communication signal with reduced computational complexity by producing from a sample vector (y) a plurality of vectors (w) that are smaller than the sample vector. The interference rejection operation can then be applied to each of the smaller vectors individually to decide communication symbols represented by the sample vector.
摘要翻译：通过从样本矢量（y）产生小于样本矢量的多个矢量（w），干扰抑制（85）可以应用于具有降低的计算复杂度的无线通信信号。然后可以将干扰抑制操作单独地应用于每个较小的矢量，以决定由样本矢量表示的通信符号。

8. 发明申请

US20070165699A1 Code Division Multiple Access Wireless System With Closed Loop Mode Using Ninety Degree Phase Rotation and Beamformer Verification 有权
标题翻译：使用九十度相位旋转和波束成形器验证的闭环模式的码分多址无线系统
公开(公告)号：US20070165699A1
公开(公告)日：2007-07-19
申请号：US11681088
申请日：2007-03-01
申请人： Anand Dabak , Eko Onggosanusi
发明人： Anand Dabak , Eko Onggosanusi
IPC分类号： H04B1/00
CPC分类号： H04B7/0615 , H04B7/0617 , H04B7/0634 , H04B7/0645 , H04B7/0654 , H04B7/0857 , H04B17/104 , H04B17/24
摘要： A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (a2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.
摘要翻译：一种无线通信系统（10）。该系统包括用户站（12）。用户站包括解扩电路（22），用于接收和解扩从至少第一发射天线（A 12 1 1）和第二发射天线（A 12＆lt; 2＆gt; 1＆ / SUB>）。多个时隙中的每一个包括包括第一组导频符号的第一信道（DPCH）和包括第二组导频符号的第二信道（PCCPCH）。用户站还包括电路（50），用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量（α1，n N），并且响应于第一组导频符号在给定的时隙。用户站还包括电路（50），用于测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量（α2，n N），并且响应于第一组导频符号在给定的时隙。用户站还包括用于响应于第一信道测量和第二信道测量而针对多个时隙中的每个给定时隙测量相位差值（phi <2> 2（n））的电路（52）对于给定的时隙，并且响应于给定时隙相对于由紧接在给定时隙之前的解扩电路接收的时隙的九十度旋转。

9. 发明申请

US20060291581A1 High Data Rate Closed Loop MIMO Scheme Combining Transmit Diversity and Data Multiplexing 有权
标题翻译：高数据速率闭环MIMO方案组合发射分集和数据复用
公开(公告)号：US20060291581A1
公开(公告)日：2006-12-28
申请号：US11468394
申请日：2006-08-30
申请人： Eko Onggosanusi , Anand Dabak , Timothy Schmidl
发明人： Eko Onggosanusi , Anand Dabak , Timothy Schmidl
IPC分类号： H04L1/02
CPC分类号： H04B7/0632 , H04B7/0854 , H04B7/0857
摘要： Closed loop multiple-antenna wireless communications system with antenna weights determined by maximizing a composite channel signal-to-interference-plus-noise ratio minimum. Multiplexed symbol streams over subsets of antennas enhance throughput.
摘要翻译：具有天线权重的闭环多天线无线通信系统，其通过最大化复合信道信噪比加噪声比最小来确定。天线子集上的多路复用符号流增加吞吐量。

10. 发明申请

US20060039489A1 Method and apparatus for providing closed-loop transmit precoding 审中-公开
标题翻译：用于提供闭环发射预编码的方法和装置
公开(公告)号：US20060039489A1
公开(公告)日：2006-02-23
申请号：US11182083
申请日：2005-07-15
申请人： Muhammad Ikram , Eko Onggosanusi , Vasanthan Raghavan , Anand Dabak , Srinath Hosur , Badrinarayanan Varadarajan
发明人： Muhammad Ikram , Eko Onggosanusi , Vasanthan Raghavan , Anand Dabak , Srinath Hosur , Badrinarayanan Varadarajan
IPC分类号： H04K1/10 , H04L27/04 , H04L1/02
CPC分类号： H04B7/0663 , H04B7/0634 , H04B7/0639 , H04L5/0023 , H04L5/0046 , H04L5/006 , H04L25/0204 , H04L25/0248 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： A method for providing closed-loop transmit precoding between a transmitter and a receiver, includes defining a codebook that includes a set of unitary rotation matrices. The receiver determines which preceding rotation matrix from the codebook should be used for each sub-carrier that has been received. The receiver sends an index to the transmitter, where the transmitter reconstructs the precoding rotation matrix using the index, and precodes the symbols to be transmitted using the preceding rotation matrix. An apparatus that employs this closed-loop technique is also described.
摘要翻译：一种用于在发射机和接收机之间提供闭环发射预编码的方法，包括定义包括一组单位旋转矩阵的码本。接收机确定来自码本的哪个先前的旋转矩阵应该被用于已经被接收的每个子载波。接收机向发射机发送索引，其中发射机使用索引重构预编码旋转矩阵，并且使用前一个旋转矩阵对要发送的符号进行预编码。还描述了采用该闭环技术的装置。

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