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31. 发明授权

US08509319B2 Uplink precoding for retransmission without explicit precoding instruction 有权
标题翻译：用于重传的上行链路预编码，无需明确的预编码指令
公开(公告)号：US08509319B2
公开(公告)日：2013-08-13
申请号：US13251763
申请日：2011-10-03
申请人： Tyler A. Brown , Krishna Kamal Sayana , Xiangyang Zhuang
发明人： Tyler A. Brown , Krishna Kamal Sayana , Xiangyang Zhuang
IPC分类号： H04B7/02
CPC分类号： H04L1/06 , H04L1/1887
摘要： A method in a wireless communication device includes receiving precoding matrix information including first and second precoding submatrices, transmitting a first transport block from a first set of at least two antennas according to the first precoding submatrix and a second transport block from a second set of at least two antennas according to the second precoding submatrix, receiving a retransmission request for the second transport block, and retransmitting the second transport block according to a retransmission precoding matrix from at least one of the first set of antennas and at least one of the second set of antennas.
摘要翻译：一种无线通信设备中的方法包括：接收包括第一和第二预编码子矩阵的预编码矩阵信息，根据第一预编码子矩阵从第一组至少两个天线发送第一传输块;以及第二传输块，根据所述第二预编码子矩阵的至少两个天线，接收对所述第二传输块的重传请求，并且根据来自所述第一组天线中的至少一个和所述第二组中的至少一个的重传预编码矩阵重传所述第二传输块的天线。

32. 发明申请

US20120281556A1 MULTI-CELL COORDINATED TRANSMISSIONS IN WIRELESS COMMUNICATION NETWORK 有权
标题翻译：无线通信网络中的多小区协调传输
公开(公告)号：US20120281556A1
公开(公告)日：2012-11-08
申请号：US13099177
申请日：2011-05-02
申请人： Krishna Kamal Sayana , Xiangyang Zhuang
发明人： Krishna Kamal Sayana , Xiangyang Zhuang
IPC分类号： H04W24/00
CPC分类号： H04B7/024 , H04L5/0023 , H04L5/0035 , H04L5/0057 , H04L5/006 , H04L5/0091
摘要： A method is described for fast coordinated transmissions in a multi-point system, which involves a UE receiving known pilot signals sent from a set of transmission antennas and determining, based on the known pilot signals from the set of transmission antennas, a recommended first subset of transmission antennas from which transmissions are not intended for the wireless communication device, and a recommended second subset of transmission antennas from which transmissions are intended for the wireless communication device. The UE also determines a recommended transmission power setting of each of the first subset of transmission antennas; sending information to the base station, wherein the information pertains to the recommended first and second subsets of transmission antennas and the recommended transmission power setting of each of the first subset of transmission antennas.
摘要翻译：描述了一种用于多点系统中的快速协调传输的方法，其涉及UE接收从一组发射天线发送的已知导频信号，并且基于来自该组发射天线的已知导频信号，确定推荐的第一子集传输不用于无线通信设备的传输天线以及传输用于无线通信设备的推荐的发射天线子集。 UE还确定发射天线的第一子集中的每一个的推荐发射功率设置; 向所述基站发送信息，其中所述信息涉及所述推荐的发送天线的第一和第二子集以及所述第一发射天线子集的所推荐的发射功率设置。

33. 发明申请

US20120213261A1 METHOD AND APPARATUS FOR REFERENCE SIGNAL PROCESSING IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM 失效
标题翻译：在正交频分复用通信系统中参考信号处理的方法和装置
公开(公告)号：US20120213261A1
公开(公告)日：2012-08-23
申请号：US13031390
申请日：2011-02-21
申请人： Krishna Kamal Sayana , Xiangyang Zhuang
发明人： Krishna Kamal Sayana , Xiangyang Zhuang
IPC分类号： H04W24/00 , H04W4/00
CPC分类号： H04L5/0048 , H04L5/0023 , H04L5/0035 , H04L5/0094 , H04L25/0226
摘要： A wireless communication includes a base station that configures a set of non-zero power reference signals corresponding to multiple potential transmission points to one or more users equipment UEs and configures at least one zero-power reference signal, with zero transmission power from one or more of the multiple transmission points. The base station transmits configuration information to at least one UE of the one more UEs, wherein the configuration information corresponds to a set of resource elements that are associated with a set of channel state information reference signals and wherein the set of channel state information reference signals include the set of nonzero-power reference signals and the at least one zero-power reference signal. The UE then performs a channel measurement based on one or more non-zero-power reference signals of the set of non-zero-power reference signals and performs an interference measurement based on the at least one zero-power reference signal.
摘要翻译：无线通信包括：基站，其将与多个潜在传输点相对应的一组非零功率参考信号配置到一个或多个用户设备UE，并且配置至少一个零功率参考信号，其中零个发射功率来自一个或多个的多个传输点。基站向多个UE的至少一个UE发送配置信息，其中配置信息对应于与一组信道状态信息参考信号相关联的一组资源元素，并且其中信道状态信息参考信号包括一组非零功率参考信号和至少一个零功率参考信号。然后，UE基于一组非零功率参考信号的一个或多个非零功率参考信号执行信道测量，并且基于至少一个零功率参考信号执行干扰测量。

34. 发明申请

US20120087424A1 Uplink Precoding For Retransmission Without Explicit Precoding Instruction 有权
标题翻译：无显式预编码指令的上行预编码重传
公开(公告)号：US20120087424A1
公开(公告)日：2012-04-12
申请号：US13251763
申请日：2011-10-03
申请人： Tyler A. Brown , Krishna Kamal Sayana , Xiangyang Zhuang
发明人： Tyler A. Brown , Krishna Kamal Sayana , Xiangyang Zhuang
IPC分类号： H04L27/28
CPC分类号： H04L1/06 , H04L1/1887
摘要： A method in a wireless communication device includes receiving precoding matrix information including first and second precoding submatrices, transmitting a first transport block from a first set of at least two antennas according to the first precoding submatrix and a second transport block from a second set of at least two antennas according to the second precoding submatrix, receiving a retransmission request for the second transport block, and retransmitting the second transport block according to a retransmission precoding matrix from at least one of the first set of antennas and at least one of the second set of antennas.
摘要翻译：一种无线通信设备中的方法包括：接收包括第一和第二预编码子矩阵的预编码矩阵信息，根据第一预编码子矩阵从第一组至少两个天线发送第一传输块;以及第二传输块，根据所述第二预编码子矩阵的至少两个天线，接收对所述第二传输块的重传请求，并且根据来自所述第一组天线中的至少一个和所述第二组中的至少一个的重传预编码矩阵重发所述第二传输块的天线。

35. 发明申请

US20120057585A1 Method and System for Link Adaptation Using Metric Feedback 有权
标题翻译：使用公制反馈的链路适配方法和系统
公开(公告)号：US20120057585A1
公开(公告)日：2012-03-08
申请号：US13295754
申请日：2011-11-14
申请人： Krishna Kamal Sayana , Xiangyang Zhuang
发明人： Krishna Kamal Sayana , Xiangyang Zhuang
IPC分类号： H04W92/00 , H04B7/24 , H04L27/00
CPC分类号： H04W72/0413 , H04B7/0417 , H04B7/0617 , H04L1/0003 , H04L1/0025 , H04L1/0028 , H04L1/0035 , H04L1/06 , H04L1/1812 , H04W88/02 , H04W88/08
摘要： A method for link adaptation at a base station using metric feedback is disclosed. The method can include the steps of communicating with a mobile station over a communication link having one or more sub-channels and during the communication, receiving from the mobile station a plurality of mutual information per coded bit metrics for a plurality of candidate modulation types per coding layer. The mutual information per coded bit metrics can be based on channel state knowledge of the sub-channels. Also, based on the received information, the operational performance of the mobile station can be predicted in view of one or more transmission parameters and performance factors and one or more of the transmission parameters, including a modulation type selected from one of the plurality of candidate modulation types per coding layer, can be selected based on a transmission condition of the communication link.
摘要翻译：公开了一种使用度量反馈在基站上进行链路自适应的方法。该方法可以包括以下步骤：通过具有一个或多个子信道的通信链路与移动站进行通信，并且在通信期间，从移动站接收针对多个候选调制类型的每个编码比特度量的多个互信息编码层。每个编码比特度量的互信息可以基于子信道的信道状态知识。另外，基于接收到的信息，可以考虑到一个或多个传输参数和性能因素以及一个或多个传输参数来预测移动站的操作性能，所述传输参数包括从多个候选中的一个中选择的调制类型可以基于通信链路的发送条件来选择每个编码层的调制类型。

36. 发明授权

US08130847B2 Closed-loop transmission feedback in wireless communication systems 有权
标题翻译：无线通信系统中的闭环传输反馈
公开(公告)号：US08130847B2
公开(公告)日：2012-03-06
申请号：US11937501
申请日：2007-11-09
申请人： Frederick W. Vook , Thomas P. Krauss , Krishna Kamal Sayana , Fan Wang , Xiangyang Zhuang
发明人： Frederick W. Vook , Thomas P. Krauss , Krishna Kamal Sayana , Fan Wang , Xiangyang Zhuang
IPC分类号： H04L27/28
CPC分类号： H04L5/0053 , H04B7/0689 , H04L1/0026 , H04L5/0023
摘要： An orthogonal frequency division multiplexing wireless communication terminal, that communicates with a base unit, obtains a set of analog coefficients by transforming a transmit spatial covariance matrix, modulates the set of analog coefficients onto multiple channels to form a feedback waveform, and transmits the feedback waveform to the base unit.
摘要翻译：与基本单元进行通信的正交频分复用无线通信终端通过变换发送空间协方差矩阵来获得一组模拟系数，将该组模拟系数调制到多个通道上以形成反馈波形，并且发送反馈波形到基地单位。

37. 发明申请

US20120039251A1 METHOD OF CODEBOOK DESIGN AND PRECODER FEEDBACK IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：无线通信系统中的代码设计方法和预编译器反馈
公开(公告)号：US20120039251A1
公开(公告)日：2012-02-16
申请号：US13188419
申请日：2011-07-21
申请人： Krishna Kamal Sayana , Xiangyang Zhuang
发明人： Krishna Kamal Sayana , Xiangyang Zhuang
IPC分类号： H04W4/00
CPC分类号： H04B7/0639 , H04B7/0663
摘要： A method for two component feedback in wireless communication systems wherein a wireless communication device sends a first representation of a first matrix chosen from a first codebook, the first matrix is a N-by-N diagonal matrix with the k-th diagonal elements being σ1*exp(jπ(k−1)m/N), for k from 1 to N/2 and being σ2*exp(jπ(k−N/2−1)m/N) for k from N/2+1 to N, N is a number of antennas, m is an integer between 0 and N−1, and σ1, σ2 are complex valued scalars. The device also sends a second representation of a second N-by-R matrix chosen from a second codebook, with R being a number of spatial layers wherein the first and second representations together convey a precoder matrix as the matrix product of the first and second matrices.
摘要翻译：一种用于无线通信系统中的双分量反馈的方法，其中无线通信设备发送从第一码本选择的第一矩阵的第一表示，第一矩阵是N×N对角矩阵，其中第k个对角元素为＆sgr ;对于k，从1到N / 2，并且为＆sgr; 2 * exp（j＆pgr;（k-N / 2-1）m / N），对于k，1 * exp（j＆pgr;（k-1）m / 从N / 2 + 1到N，N是天线的数量，m是0和N-1之间的整数，＆sgr; 1，＆sgr; 2是复值标量。该设备还发送从第二码本中选择的第二N乘R矩阵的第二表示，其中R是多个空间层，其中第一和第二表示一起传送预编码矩阵作为第一和第二码本的矩阵乘积矩阵。

38. 发明申请

US20100034299A1 MAPPING AND SIGNALING OF COMMON REFERENCE SYMBOLS FOR MULTIPLE ANTENNAS 有权
标题翻译：多个天线的共同参考符号的映射和信号
公开(公告)号：US20100034299A1
公开(公告)日：2010-02-11
申请号：US12188664
申请日：2008-08-08
申请人： Robert Love , Tyler Brown , Colin Frank , Jialing Liu , Ravi Nory , Krishna Kamal Sayana , Kenneth Stewart , Pallav Sudarshan , Xiangyang Zhuang
发明人： Robert Love , Tyler Brown , Colin Frank , Jialing Liu , Ravi Nory , Krishna Kamal Sayana , Kenneth Stewart , Pallav Sudarshan , Xiangyang Zhuang
IPC分类号： H04L27/28
CPC分类号： H04L5/0048
摘要： A method, a network base station, and a user communication device for transmitting data on an orthogonal frequency-division multiplexing carrier are disclosed. An antenna array may transmit a signal decodable by a legacy user communication device designed for compatibility with a legacy set of transmission antennas. A processor 210 may encode a subframe of the signal with a legacy set of common reference symbols and a supplemental set of common reference symbols referring to the antenna array.
摘要翻译：公开了一种用于在正交频分复用载波上传输数据的方法，网络基站和用户通信设备。天线阵列可以传输由传统用户通信设备解码的信号，该传统用户通信设备旨在与传统的传输天线组兼容。处理器210可以用参考天线阵列的公共参考符号的遗留集合和公共参考符号的补充集来编码信号的子帧。

39. 发明申请

US20090092178A1 Techniques for Estimating Received Signal Strength and Carrier to Interference and Noise Ratio in OFDM Systems 有权
标题翻译： OFDM系统中估计接收信号强度和载波干扰和噪声比的技术
公开(公告)号：US20090092178A1
公开(公告)日：2009-04-09
申请号：US11867802
申请日：2007-10-05
申请人： Krishna Kamal Sayana , Xiangyang Zhuang , Kenneth A. Stewart , Pallav Sudarshan
发明人： Krishna Kamal Sayana , Xiangyang Zhuang , Kenneth A. Stewart , Pallav Sudarshan
IPC分类号： H04B17/00
CPC分类号： H04B17/336 , H04B17/318
摘要： A technique for determining a received signal strength indicator of a target base station at a subscriber station includes performing a discrete Fourier transform on a received signal to provide a transformed signal. In this case, the transformed signal occupies one or more segments of a channel and the one or more segments each include multiple subcarriers. A shift-n cross-correlation is calculated based on the transformed signal and a preamble sequence of the target base station to provide a coarse received signal strength indicator for the target base station.
摘要翻译：用于确定用户站处的目标基站的接收信号强度指示符的技术包括对接收到的信号执行离散付里叶变换以提供经变换的信号。在这种情况下，变换的信号占用信道的一个或多个段，并且一个或多个段各自包括多个子载波。基于变换的信号和目标基站的前导序列来计算移位n互相关，以为目标基站提供粗略的接收信号强度指示符。

40. 发明授权

US09509377B2 Method and apparatus for rank adaptation in an orthogonal frequency division multiplexing communication system 有权
标题翻译：正交频分复用通信系统中的秩自适应的方法和装置
公开(公告)号：US09509377B2
公开(公告)日：2016-11-29
申请号：US13290401
申请日：2011-11-07
申请人： Krishna Kamal Sayana , Tyler A. Brown , Robert T. Love , Vijay Nangia
发明人： Krishna Kamal Sayana , Tyler A. Brown , Robert T. Love , Vijay Nangia
IPC分类号： H04B7/02 , H04B7/04 , H04B7/06
CPC分类号： H04B7/024 , H04B7/0413 , H04B7/0465 , H04B7/0626 , H04B7/063
摘要： A communication system provides for adaptive rank determination, for example, a rank 2 transmission in instances where a rank 1 transmission may be indicated under supported feedback modes in current standards where no explicit power adaptation can be assumed, for example, where a user equipment (UE) is limited to reporting a rank 1 channel due to a large dynamic range of a signal or due to a signal received by the UE from one base station (BS) antenna port drowning out a signal received by the UE from another BS antenna port. The communication system provides for the UE to implement rank 2 transmission in such instances by using per-antenna port power control at a BS serving the UE. In one embodiment, the BS controls the rank determination at the UE by signaling transmit power or power offset related parameters to use for rank and transmission parameters determination and feedback.
摘要翻译：通信系统提供自适应秩确定，例如，在可以在当前标准中的支持的反馈模式下指示秩1传输的情况下的等级2传输，其中不能假设明确的功率适配，例如，其中用户设备 UE）由于信号的大动态范围或由于UE从一个基站（BS）天线端口接收的信号而被限制为报告秩1信道，该信号淹没了UE从另一个BS天线端口接收到的信号。通信系统通过在服务于UE的BS的每个天线端口功率控制来提供UE在这种情况下实现2级传输。在一个实施例中，BS通过信令发送功率或功率偏移相关参数来控制UE处的秩确定，以用于秩和传输参数确定和反馈。

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