公开(公告)号：US08179990B2

公开(公告)日：2012-05-15

申请号：US12212609

申请日：2008-09-17

申请人： Philip V. Orlik ,  Wataru Matsumoto ,  Andreas F. Molisch ,  Zhifeng Tao ,  Jinyun Zhang

发明人： Philip V. Orlik ,  Wataru Matsumoto ,  Andreas F. Molisch ,  Zhifeng Tao ,  Jinyun Zhang

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L1/1816 ,  H04L1/0606 ,  H04L1/0631 ,  H04L1/0662 ,  H04L1/1819 ,  H04L1/1845

摘要： A method transmits a sequence of symbols in a multiple-input multiple-output (MIMO) network including a transmitter having a set of transmit antennas and a receiver having a set of receive antennas. The sequence of symbols is represented by a vector S=[S1 S2 S3 S4]T of individual symbols, where T is a transpose operator. The individual symbols are transmitted as a transmit matrix S = [ S 1 - S 2 * S 1 - S 2 * S 2 S 1 * S 2 S 1 * S 3 - S 4 * - S 3 S 4 * S 4 S 3 * - S 4 - S 3 * ] , where * is a complex conjugate, and wherein each column of the matrix S represents the symbols transmitted at each transmission interval, and subscripts index the set of transmit antennas.

摘要翻译： 一种方法在包括具有一组发射天线的发射机和具有一组接收天线的接收机的多输入多输出（MIMO）网络中发送符号序列。 符号序列由单个符号的矢量S = [S1 S2 S3 S4] T表示，其中T是转置运算符。 各个符号作为发送矩阵发送S = [S 1 -S 2 * S 1 -S 2 * S 2 S 1 * S 2 S 1 * S 3 -S 4 * -S 3 S 4 * S 4 S 3 * - S 4 -S 3 *]，其中*是复共轭，并且其中矩阵S的每列表示在每个传输间隔处发送的符号，下标索引发射天线集合。

公开(公告)号：US08111767B2

公开(公告)日：2012-02-07

申请号：US11755890

申请日：2007-05-31

申请人： Sinan Gezici ,  Chunjie Duan ,  Jinyun Zhang ,  Rajesh Garg

发明人： Sinan Gezici ,  Chunjie Duan ,  Jinyun Zhang ,  Rajesh Garg

IPC分类号： H04L

CPC分类号： H03M13/41

摘要： An adaptive sliding block Viterbi decoder (ASBVD) includes forward and backward Viterbi processors, a state estimator and a control unit. The processors generate metrics of states and of transitions between the states associated with an encoder, based on encoded input information symbols received via a communications channel. Each processor includes a plurality of buffers for storing information symbols so that a number of the encoded input information symbols can be concurrently decoded. The state estimator estimates a current state of a code trellis based on the generated metrics, and the processors decode the stored information symbols based on the estimated current state. The control unit adapts the number of encoded input information symbols to be concurrently decoded based on a condition of the communications channel, and selectively controls the number of buffers that are enabled in accordance with the number of encoded input information symbols to be concurrently decoded.

摘要翻译： 自适应滑块维特比解码器（ASBVD）包括前向和后向维特比处理器，状态估计器和控制单元。 处理器基于经由通信信道接收的经编码的输入信息符号，产生状态和与编码器相关联的状态之间的转变的度量。 每个处理器包括用于存储信息符号的多个缓冲器，使得可以同时解码多个编码的输入信息符号。 状态估计器基于所生成的度量来估计代码网格的当前状态，并且处理器基于估计的当前状态解码所存储的信息符号。 控制单元基于通信信道的条件来适应要同时解码的编码输入信息符号的数量，并且根据要编码的输入信息符号的数量来选择性地控制能够被同时解码的缓冲器的数量。

公开(公告)号：US08014263B2

公开(公告)日：2011-09-06

申请号：US12543671

申请日：2009-08-19

申请人： Zhifeng Tao ,  Philip V. Orlik ,  Jun Ma ,  Ye Li ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Philip V. Orlik ,  Jun Ma ,  Ye Li ,  Jinyun Zhang

IPC分类号： H04J1/12 ,  H04B7/14

CPC分类号： H04B7/15592 ,  H04B7/15564 ,  H04L27/2601

摘要： Cross-talk is canceled in a cooperative wireless relay network that includes a base station (BS), a relay station (RS), and a mobile station (MS). A coupling channel between a transmit antenna and a receive antenna colocated at the RS is estimated. Cross-talk interference determination is based on a previous transmitted signal by the transmit antenna, and the coupling channel. The cross-talk interference is subtracted from a currently received signal by the receive antenna to obtain a residual signal. The residual signal is then transmitted as a next transmitted signal by the transmit antenna.

摘要翻译： 在包括基站（BS），中继站（RS）和移动站（MS）的协作无线中继网络中，串扰被取消。 估计发射天线与在RS共同定位的接收天线之间的耦合信道。 串扰干扰确定基于发射天线的先前发射信号和耦合信道。 由接收天线从当前接收到的信号中减去串扰干扰，以获得残留信号。 然后由发射天线作为下一个发射信号发送残余信号。

公开(公告)号：US07907508B2

公开(公告)日：2011-03-15

申请号：US12112400

申请日：2008-04-30

申请人： Zhifeng Tao ,  Yu-Jung Chang ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Yu-Jung Chang ,  Jinyun Zhang

IPC分类号： H04J11/00 ,  H04J1/00 ,  H04W40/00 ,  H04W72/00 ,  H04K1/10 ,  H04K1/02 ,  H03D1/04

CPC分类号： H04L5/0032 ,  H04L5/0037 ,  H04L5/0058

摘要： A method allocates radio channel resource in an orthogonal frequency-division multiple access network including a set of base stations (BS) and a set of mobile stations (MS). For each BS, a diversity set is maintained for the sets of MS. Each BS determines possible interference at the MS based on the diversity set. A graph is constructed, in which nodes represent the sets of MS, and each edge between a pair of nodes represents channel interference between the MS represented by the pair of nodes. A weight is assigned to each edge, which reflects interference and signal strength on the subchannel between the two MSs connected by the edge. Channel resources are allocated to the MS based on the graph.

摘要翻译： 一种方法在包括一组基站（BS）和一组移动站（MS）的正交频分多址网络中分配无线电信道资源。 对于每个BS，为MS集合保持分集集合。 每个BS基于分集集确定MS处的可能干扰。 构建图，其中节点表示MS集合，并且一对节点之间的每个边缘表示由该对节点表示的MS之间的信道干扰。 权重分配给每个边缘，其反映由边缘连接的两个MS之间的子信道上的干扰和信号强度。 信道资源根据图表分配给MS。

公开(公告)号：US20100327064A1

公开(公告)日：2010-12-30

申请号：US12640949

申请日：2009-12-17

申请人： Raymond Yim ,  Samuel David Perli ,  Fatih Porikli ,  Jinyun Zhang

发明人： Raymond Yim ,  Samuel David Perli ,  Fatih Porikli ,  Jinyun Zhang

IPC分类号： G06K19/06 ,  G06K7/10

CPC分类号： G06K7/14 ,  G06K7/1417 ,  G06K7/1473

摘要： Symbols in information are encoded as a codeword using a differential orthogonal code. The codeword is stored in a substrate. A moving sensor acquires an image of the codeword in the substrate and decodes the codeword using a balanced differential decoder. The codeword can be painted as lane markings on a road surface.

摘要翻译： 使用差分正交码将信息中的符号编码为码字。 码字被存储在基板中。 移动传感器获取衬底中的码字的图像，并使用平衡差分解码器解码码字。 码字可以作为道路表面上的车道标记来绘制。

公开(公告)号：US20100246703A1

公开(公告)日：2010-09-30

申请号：US12503465

申请日：2009-07-15

申请人： Philip V. Orlik ,  Lu Zhang ,  Raymond Yim ,  Jinyun Zhang

发明人： Philip V. Orlik ,  Lu Zhang ,  Raymond Yim ,  Jinyun Zhang

IPC分类号： H04L23/02

CPC分类号： H04L1/065 ,  H04L1/0003 ,  H04L25/0212 ,  H04L25/0226

摘要： A transmitter encodes an input bitstream using space-time trellis coding (STTC). The encoder includes a serial to parallel convertor to produce a first and second output bitstreams. First and second three bit shift registers are connected to produce first and second output bitstreams. A multiplier applies a code generating weight to each bit of the shift registers to encode the bitstreams. A first switch is connected between a last bit of the first shift register and a first bit of the second shift register. A second switch is connected between the second output and the first bit of the second shift register. The first set of encoded bit streams and the second set of encoded bitstreams are combined and mapped to a frequency domain.

摘要翻译： 发射机使用空时网格编码（STTC）对输入比特流进行编码。 编码器包括串行到并行转换器以产生第一和第二输出比特流。 连接第一和第二三位移位寄存器以产生第一和第二输出比特流。 乘法器将代码生成权重应用于移位寄存器的每个位以对比特流进行编码。 第一开关连接在第一移位寄存器的最后位和第二移位寄存器的第一位之间。 第二开关连接在第二输出端和第二移位寄存器的第一位之间。 第一组编码比特流和第二组编码比特流被组合并映射到频域。

公开(公告)号：US20100226415A1

公开(公告)日：2010-09-09

申请号：US12279914

申请日：2006-02-28

申请人： Neelesh B. Mehta ,  Dong Wang ,  Hongyuan Zhang ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Neelesh B. Mehta ,  Dong Wang ,  Hongyuan Zhang ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04L27/00 ,  H04B1/38

CPC分类号： H04L1/0625 ,  H04B7/0413 ,  H04L27/2626

摘要： A method, MIMO communication device and electronic storage medium for mapping symbols during a duration of each plural consecutive frames of each of a plurality of first data streams (10, 12, 14, 16, 18, 20, 22, 24, 26) to frames of a plurality of second data streams (spaced-time coded streams or antenna streams); and varying the mapping during the duration of each of the plural consecutive frames of each of the plurality of first data streams (10, 12, 14, 16, 18, 20, 22, 24, 26).

摘要翻译： 一种用于在多个第一数据流（10,12,14,16,18,20,22,24,26）中的每一个的每个多个连续帧的持续时间内映射符号的方法，MIMO通信设备和电子存储介质， 多个第二数据流（间隔时间编码的流或天线流）的帧; 以及在多个第一数据流（10,12,14,16,18,18,20,22,24,26）中的每一个的多个连续帧中的每一个的持续时间期间改变映射。

公开(公告)号：US20100214997A1

公开(公告)日：2010-08-26

申请号：US12393820

申请日：2009-02-26

申请人： Zhifeng Tao ,  Weihuang Fu ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Weihuang Fu ,  Jinyun Zhang

IPC分类号： H04W72/04 ,  H04W16/02

CPC分类号： H04W16/12 ,  H04W72/082 ,  H04W72/085

摘要： A method allocates resource in an Orthogonal Frequency-Division Multiple Access (OFDMA) network, including a set of Base Stations (BSs) and a set of Mobile Stations (MSs) for each BS. OFDMA frame are constructed as multiple resource blocks, and each resource block contains symbols transmitted on different subcarriers. A cluster is formed from adjacent sectors of different neighboring cells to jointly optimize the resource allocation in multiple frames, and three non-overlap zones are sequentially identified in cluster: cell center zone, cell edge zone, and cluster corner zone. Resource allocation includes intra-cluster proportional fair scheduling and inter-cluster interference mitigation. Intra-cluster scheduling further includes resource allocation for cell center zone and resource allocation for cell edge zone.

摘要翻译： 一种方法在正交频分多址（OFDMA）网络中分配资源，包括一组基站（BS）和一组用于每个BS的移动站（MS）。 OFDMA帧被构造为多个资源块，每个资源块包含在不同子载波上发送的符号。 从不同相邻小区的相邻扇区形成一个簇，共同优化多个帧中的资源分配，并在簇：小区中心区域，小区边缘区域和群集角区域中顺序识别出三个非重叠区域。 资源分配包括群内比例公平调度和集群间干扰减轻。 集群内调度还包括用于小区中心区的资源分配和小区边缘区域的资源分配。

公开(公告)号：US20100002649A1

公开(公告)日：2010-01-07

申请号：US12495334

申请日：2009-06-30

申请人： Koon Hoo Teo ,  Neelesh B. Mehta ,  Jinyun Zhang

发明人： Koon Hoo Teo ,  Neelesh B. Mehta ,  Jinyun Zhang

IPC分类号： H04W72/04 ,  H04J3/00 ,  H04L27/28

CPC分类号： H04B7/061 ,  H04B7/0691 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0228

摘要： Embodiments of the invention describe a method for antenna selection (AS) in a wireless communication network, the network comprising user equipment (UE), wherein the UE comprises a plurality of subsets of antennas including a first subset of antennas and a second subset of antennas, and wherein the UE is configured to transmit a sounding reference signal (SRS) from a subset of antennas at a time. The method transmits a first SRS from the first subset of antennas, transmits a second SRS from the second subset of antennas, receives, in response to the transmitting the first SRS and the second SRS, information identifying an optimal subset of antennas from the first subset of antennas and the second subset of antennas, and transmits user data from the optimal subset of antennas.

摘要翻译： 本发明的实施例描述了一种用于无线通信网络中的天线选择（AS）的方法，所述网络包括用户设备（UE），其中所述UE包括多个天线子集，所述天线包括天线的第一子集和第二天线子集 ，并且其中所述UE被配置为一次从所述天线子集发射探测参考信号（SRS）。 该方法从第一天线子集发送第一SRS，从第二天线子集发送第二SRS，响应于发送第一SRS和第二SRS，接收从第一子集识别天线的最佳子集的信息 的天线和第二天线子集，并且从最佳天线子集发送用户数据。

公开(公告)号：US07623081B2

公开(公告)日：2009-11-24

申请号：US12019737

申请日：2008-01-25

申请人： Masashi Saito ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Masashi Saito ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H01Q3/00

CPC分类号： H01Q3/04

摘要： A movable portion of an array of antenna elements receives RF signals. A movable ultra-wideband (UWB) transmitter is connected to each antenna element, via a RF to UWB converter. A fixed portion of the antenna array is separated from the movable portion by an air gap. The fixed portion includes one fixed UWB receiver for each movable UWB transmitter. An application system is connected to the fixed UWB receivers. The UWB signals from the movable transmitter are sent across the air gap to the fixed UWB receivers to be processed by the application system as the movable portion rotates.

摘要翻译： 天线元件阵列的可移动部分接收RF信号。 可移动超宽带（UWB）发射机通过RF至UWB转换器连接到每个天线元件。 天线阵列的固定部分通过气隙与可动部分分离。 固定部分包括用于每个可移动UWB发射机的一个固定UWB接收机。 应用系统连接到固定的UWB接收机。 来自可移动发射机的UWB信号通过气隙被发送到固定的UWB接收机，由可移动部分旋转时由应用系统处理。