公开(公告)号：US20070242773A1

公开(公告)日：2007-10-18

申请号：US11736847

申请日：2007-04-18

申请人： Yingxue Li ,  Sung-Hyuk Shin ,  Guodong Zhang ,  Donald M. Grieco

发明人： Yingxue Li ,  Sung-Hyuk Shin ,  Guodong Zhang ,  Donald M. Grieco

IPC分类号： H04L27/00 ,  H04L1/02

CPC分类号： H04L1/1816 ,  H04L1/0002 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0662 ,  H04L1/0668 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845 ,  H04L25/0204

摘要： A method and apparatus for implementing hybrid automatic repeat request (H-ARQ) in a multiple-input multiple-output (MIMO) wireless communication system are disclosed. A transmitter transmits at least two data packets via two or more antennas. If at least one of the data packets is not successfully transmitted, the transmitter retransmits the data packets while rearranging the data packets in an orthogonal spreading manner. Alternatively, the transmitter may retransmit only the unsuccessfully transmitted data packet along with a new data packet which replaces a successfully transmitted data packet. The unsuccessfully transmitted data packet may simply be repeated without changing its format. When only the unsuccessfully transmitted data packet is retransmitted along with the new data packet, the transmissions may be combined to recover the retransmitted data packet and the new data packet simultaneously.

摘要翻译： 公开了一种用于在多输入多输出（MIMO）无线通信系统中实现混合自动重传请求（H-ARQ）的方法和装置。 发射机经由两个或更多个天线发送至少两个数据分组。 如果数据分组中的至少一个没有成功发送，则在以正交扩频方式重排数据分组的同时，发射机重发数据分组。 或者，发射机可以仅重新发送未成功发送的数据分组以及替换成功发送的数据分组的新数据分组。 可以简单地重复未成功发送的数据分组而不改变其格式。 当只有未成功发送的数据分组与新的数据分组一起重传时，可以组合传输以同时恢复重传的数据分组和新的数据分组。

公开(公告)号：US08059610B2

公开(公告)日：2011-11-15

申请号：US11736847

申请日：2007-04-18

申请人： Yingxue Li ,  Sung-Hyuk Shin ,  Guodong Zhang ,  Donald M. Grieco

发明人： Yingxue Li ,  Sung-Hyuk Shin ,  Guodong Zhang ,  Donald M. Grieco

IPC分类号： H04W4/00

CPC分类号： H04L1/1816 ,  H04L1/0002 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0662 ,  H04L1/0668 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845 ,  H04L25/0204

摘要： A method and apparatus for implementing hybrid automatic repeat request (H-ARQ) in a multiple-input multiple-output (MIMO) wireless communication system are disclosed. A transmitter transmits at least two data packets via two or more antennas. If at least one of the data packets is not successfully transmitted, the transmitter retransmits the data packets while rearranging the data packets in an orthogonal spreading manner. Alternatively, the transmitter may retransmit only the unsuccessfully transmitted data packet along with a new data packet which replaces a successfully transmitted data packet. The unsuccessfully transmitted data packet may simply be repeated without changing its format. When only the unsuccessfully transmitted data packet is retransmitted along with the new data packet, the transmissions may be combined to recover the retransmitted data packet and the new data packet simultaneously.

摘要翻译： 公开了一种用于在多输入多输出（MIMO）无线通信系统中实现混合自动重传请求（H-ARQ）的方法和装置。 发射机经由两个或更多个天线发送至少两个数据分组。 如果数据分组中的至少一个没有成功发送，则在以正交扩频方式重排数据分组的同时，发射机重发数据分组。 或者，发射机可以仅重新发送未成功发送的数据分组以及替换成功发送的数据分组的新数据分组。 可以简单地重复未成功发送的数据分组而不改变其格式。 当只有未成功发送的数据分组与新的数据分组一起重传时，可以组合传输以同时恢复重传的数据分组和新的数据分组。

公开(公告)号：US20090122857A1

公开(公告)日：2009-05-14

申请号：US12261412

申请日：2008-10-30

申请人： Yingxue Li ,  Donald M. Grieco ,  Robert L. Olesen

发明人： Yingxue Li ,  Donald M. Grieco ,  Robert L. Olesen

IPC分类号： H03K7/04 ,  H04L1/02 ,  H03K7/06

CPC分类号： H04L25/03343 ,  H04B7/0413 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/063 ,  H04L2025/03802

摘要： Apparatus and method of generating a long term evolution (LTE) codebook and performing rank overriding are disclosed. Reordering rules are presented, whereby a second column vector of each rank-4 precoding matrix will not appear in column vectors of a rank-3 precoding matrix, and the first column vector of each rank-4 precodingmatrix is identical to the first column vector of the corresponding rank-3 precodingmatrix. Furthermore, precoder hopping between two precoding matrices corresponding to a particular precoding matrix index (PMI) is implemented, whereby a first one of the two precoding matrices comprises a first subset of column vectors of an original precoding matrix that corresponds to the particular PMI, and a second one of the two precoding matrices comprises a second subset of column vectors of the original precoding matrix. The precoder hopping is performed in time and/or frequency domain.

摘要翻译： 公开了生成长期演进（LTE）码本并执行秩超越的装置和方法。 提出了排序规则，由此每个秩-4预编码矩阵的第二列向量不会出现在秩-3预编码矩阵的列向量中，并且每个等级4预编码矩阵的第一列向量与 相应的3级预编码矩阵。 此外，实现对应于特定预编码矩阵索引（PMI）的两个预编码矩阵之间的预编码器跳变，由此两个预编码矩阵中的第一个预编码矩阵包括对应于特定PMI的原始预编码矩阵的列向量的第一子集，以及 两个预编码矩阵中的第二个包括原始预编码矩阵的列向量的第二子集。 预编码器跳频在时域和/或频域中进行。

公开(公告)号：US20090046801A1

公开(公告)日：2009-02-19

申请号：US12190296

申请日：2008-08-12

申请人： Kyle Jung-Lin Pan ,  Erdem Bala ,  Yingxue Li ,  Donald M. Grieco ,  Robert L. Olesen

发明人： Kyle Jung-Lin Pan ,  Erdem Bala ,  Yingxue Li ,  Donald M. Grieco ,  Robert L. Olesen

IPC分类号： H04L27/28

CPC分类号： H04B7/0452 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0645 ,  H04B7/0697

摘要： A wireless communication method and apparatus for creating a codebook in a multiple input/multiple output (MIMO) wireless communication system are disclosed. The method includes adapting a single user codebook, wherein the single user codebook comprises a plurality single user beamforming vectors, into a multi-user codebook, wherein the multi-user codebook comprises a plurality of multi-user beamforming vectors. The method further includes grouping the codebook into a plurality of unitary matrices, selecting a plurality of beamforming vectors from the plurality of unitary matrices, forming a rank specific code-book from the beamforming vectors and the unitary matrices, and selecting a subset of a total number of pairs to form the plurality of unitary matrices.

摘要翻译： 公开了一种用于在多输入/多输出（MIMO）无线通信系统中创建码本的无线通信方法和装置。 该方法包括使单用户码本将单用户码本包括多个单用户波束形成向量，并将其转换成多用户码本，其中该多用户码本包括多个多用户波束形成向量。 该方法还包括将码本分组为多个酉矩阵，从多个单一矩阵中选择多个波束成形向量，从波束形成向量和酉矩阵形成等级特定码本，并选择总数的子集 成对数以形成多个单一矩阵。

公开(公告)号：US09319197B2

公开(公告)日：2016-04-19

申请号：US13884586

申请日：2011-11-10

申请人： Onur Sahin ,  Jialing Li ,  Yingxue Li ,  Philip Pietraski

发明人： Onur Sahin ,  Jialing Li ,  Yingxue Li ,  Philip Pietraski

IPC分类号： H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

CPC分类号： H04L5/0055 ,  H04L1/0025 ,  H04L1/1607 ,  H04L1/18 ,  H04L2001/0097

摘要： Techniques for inter-cell interference cancellation are disclosed. At each transmitter, the data (message) may split into two or more layers, (e.g., common and private parts), and may be encoded in different rates, allocated with different powers, possibly beamformed using different precoders, and transmitted through the same physical channels. The common part is to be decoded at both the intended and unintended users, while the private part is to be decoded at the intended user.

摘要翻译： 公开了用于小区间干扰消除的技术。 在每个发射机处，数据（消息）可以分成两个或更多个层（例如，公共和私有部分），并且可以以不同的速率被编码，分配不同的功率，可能使用不同的预编码器波束形成，并且通过相同的传输 物理频道。 公共部分将在预期用户和非预期用户两者解码，而私有部分将在预期用户处解码。

公开(公告)号：US08208574B2

公开(公告)日：2012-06-26

申请号：US12117373

申请日：2008-05-08

申请人： Afshin Haghighat ,  Yingxue Li

发明人： Afshin Haghighat ,  Yingxue Li

IPC分类号： H04B7/02

CPC分类号： H04L27/28 ,  H04B1/38 ,  H04L1/0606 ,  H04L5/0023

摘要： A method and apparatus of reducing interference in space frequency block coding (SFBC) communication are disclosed. SFBC encoding is performed on at least one pair of symbols. The symbols are assigned to subcarriers in accordance with a frequency assignment pattern assigned to a cell. Different frequency assignment patterns are assigned to neighboring cells. Cells in the network may be divided into a plurality of groups and a different frequency assignment pattern may be assigned to each group of cells. The frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are interlaced to subcarriers mapped to a pair of symbols in a neighbor cell. Alternatively, the frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are shifted in a neighbor cell.

摘要翻译： 公开了减少空间频率块编码（SFBC）通信中的干扰的方法和装置。 对至少一对符号执行SFBC编码。 根据分配给单元的频率分配模式，将符号分配给子载波。 不同的频率分配模式被分配给相邻小区。 网络中的小区可以被划分成多个组，并且可以将不同的频率分配模式分配给每组小区。 可以定义频率分配模式，使得映射到一个小区中的一对符号的副载波被隔行扫描到映射到相邻小区中的一对符号的副载波。 或者，可以定义频率分配模式，使得映射到一个小区中的一对符号的副载波在相邻小区中移位。

公开(公告)号：US07515877B2

公开(公告)日：2009-04-07

申请号：US10983292

申请日：2004-11-04

申请人： Phil F. Chen ,  Yingxue Li

发明人： Phil F. Chen ,  Yingxue Li

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B17/00 ,  H04B7/00 ,  H04B3/46 ,  H04Q7/00 ,  H04Q1/20

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.

摘要翻译： 在具有天线元件的第一通信设备上建立一个或多个质量指示符。 质量指示符指示第一通信设备和一个或多个第二通信设备之间的一个或多个通信链路的质量。 根据质量指标确定修改，其中修改描述了一个或多个调制特征的至少一个调整。 接收表示时间段边界的时间边界指示符。 根据修改并响应于时间边界指示符调制一组信号中的至少一些信号，其中信号与天线元件相关联。 从天线元件发送信号集合以产生发射信号。

公开(公告)号：US07327801B2

公开(公告)日：2008-02-05

申请号：US11711630

申请日：2007-02-28

申请人： Haim Harel ,  Yingxue Li ,  Alexander Segalovitz

发明人： Haim Harel ,  Yingxue Li ,  Alexander Segalovitz

IPC分类号： H04B7/02 ,  H04B7/185 ,  H04B7/00 ,  H04L27/00

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.

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（例如，基站）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。 复加权与发射功率的总功率以及与来自该组天线元件的每个天线元件相关联的相位旋转和功率比中的至少一个相关联。 例如，在基于CDMA的系统中，来自基站的快速反馈（功率控制指示）可以由用户通信设备用于该传输分集方法，以便在基站提供期望的信号质量，而不必响应 通过移动单元功率输出增加而衰落零点，而是通过操纵移动发射机天线阵列的权重。 因此，实现平均和峰值移动功率水平的显着降低，增强网络容量，电池寿命和辐射危害。

公开(公告)号：US07184500B2

公开(公告)日：2007-02-27

申请号：US10334205

申请日：2002-12-30

申请人： Yingxue Li ,  Haim Harel

发明人： Yingxue Li ,  Haim Harel

IPC分类号： H04B7/10 ,  H04L1/02

CPC分类号： H04B7/0857 ,  H04B1/707

摘要： Combining signals includes receiving a plurality of groups of signals at a plurality of antennas at a mobile device, where each group of signals includes a plurality of signals, and each signal includes a time slot. The following is repeated for each group of signals of the plurality of groups of signals. An adjustment associated with a time slot of each signal is set. Each signal of the group of signals is adjusted at the time slot in accordance with the adjustment associated with the time slot. A signal quality associated with each time slot of each signal of the group of signals is established, and an optimal adjustment in accordance with the signal qualities is determined. The signals are adjusted in accordance with the optimal adjustment.

摘要翻译： 组合信号包括在移动设备处在多个天线处接收多组信号，其中每组信号包括多个信号，并且每个信号包括时隙。 对于多组信号的每组信号重复以下。 设置与每个信号的时隙相关联的调整。 根据与时隙相关联的调整，在时隙处调整信号组中的每个信号。 确定与该组信号的每个信号的每个时隙相关联的信号质量，并且确定根据信号质量的最佳调整。 信号根据最佳调整进行调整。

公开(公告)号：US20060193396A1

公开(公告)日：2006-08-31

申请号：US11345732

申请日：2006-02-02

申请人： Yingxue Li

发明人： Yingxue Li

IPC分类号： H04L1/02 ,  H04L27/04

CPC分类号： H04L1/02 ,  H04B7/061

摘要： A wireless communication system includes a transmitter comprising a serial-to-parallel converter for converting serial data bits to a parallel bit stream, a signal mapper coupled to the serial-to-parallel converter and an antenna selector coupled to the serial-to-parallel converter. The signal mapper receives as input a first group of bits from the parallel bit stream, and maps the first group of bits to a channel symbol. The antenna selector receives as input a second group of bits from the parallel bit stream. A transmit antenna array is coupled to the antenna selector and to the signal mapper. The transmit antenna array generates a plurality of transmit antenna patterns with one of the transmit antenna patterns being selected for transmitting the channel symbol based upon the second group of bits from the antenna selector.