公开(公告)号：US20130223334A1

公开(公告)日：2013-08-29

申请号：US13404354

申请日：2012-02-24

申请人： Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang ,  Ghulam M. Bhatti

发明人： Jianlin Guo ,  Philip Orlik ,  Jinyun Zhang ,  Ghulam M. Bhatti

IPC分类号： H04W8/00

CPC分类号： H04W84/18 ,  H04W48/16

摘要： An operation channel in a multi-hop network is determined. The network uses a set of channels, and one of the nodes is a network management node. The operation channel is selected in the network management node. Then, the network management node broadcasts a channel information packet including the operation channel using all channels. The channel information packet is received in each of other nodes, either directly from the network management node or from an intermediate node that received and rebroadcasted the channel information packet. Lastly, the operation channel in each node is set according to the channel information packet until the network is formed.

摘要翻译： 确定多跳网络中的操作信道。 网络使用一组信道，其中一个节点是网络管理节点。 在网络管理节点中选择操作通道。 然后，网络管理节点使用所有信道广播包括操作信道的信道信息分组。 信道信息分组在每个其他节点中直接从网络管理节点或从接收和重播广播信息分组的中间节点接收。 最后，根据信道信息包设置每个节点的操作信道，直到形成网络。

公开(公告)号：US08483186B2

公开(公告)日：2013-07-09

申请号：US12495275

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

CPC分类号： H04B7/061 ,  H04B7/0691 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0092 ,  H04L25/0204 ,  H04L25/0226

摘要： Embodiments of the invention describe a method for antenna selection (AS) in a wireless communication network, the network comprising user equipment (UE), configured to transmit a sounding reference signal (SRS) from a subset of antennas at a time without transmitting user data. The method transmits a first SRS from a first subset of antennas in a first subframe, wherein the first subframe does not include the user data, and transmits a second SRS from a second subset of antennas in a second subframe, wherein the second subframe does not include the user data. After receiving, 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, the method selects the optimal set of antennas such that the optimal subset of antennas is selected without transmitting the user data.

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），被配置为一次从天线子集发送探测参考信号（SRS），而不发送用户数据 。 该方法在第一子帧中从第一子天线发射第一SRS，其中第一子帧不包括用户数据，并且在第二子帧中从第二天线子集发送第二SRS，其中第二子帧不 包括用户数据。 在接收到响应于从第一天线子集和第二天线子集发送第一SRS和第二SRS之后识别天线的最佳子集的信息时，该方法选择最佳天线组，使得最佳子集 在不发送用户数据的情况下选择天线。

公开(公告)号：US08284686B2

公开(公告)日：2012-10-09

申请号：US12293458

申请日：2006-03-30

申请人： Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

发明人： Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

IPC分类号： H04W4/00

CPC分类号： H04B7/0691 ,  H04B7/0608 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0636 ,  H04B7/0695 ,  H04B7/0874 ,  H04B7/088 ,  H04W84/12

摘要： A method selects antennas in a multiple-input, multiple-output (MIMO) wireless local area network (WLAN) that includes a plurality of stations, and each station includes a set of antennas. Plural consecutive packets, received at a station, include plural consecutive sounding packets. Each sounding packet corresponds to a different subset of the set of antennas, and at least one of the plural consecutive packets includes a high throughput (HT) control field including a signal to initiate antenna selection and a number N indicative of a number of sounding packets which follow the at least one packet including the HT control field and which are to be used for antenna selection. A channel matrix is estimated based on a characteristic of the channel as indicated by the received N sounding packets, and a subset of antennas is selected according to the channel matrix. Station and computer program product embodiments include similar features.

摘要翻译： 一种方法选择包括多个站的多输入多输出（MIMO）无线局域网（WLAN）中的天线，并且每个站包括一组天线。 在站处接收的多个连续分组包括多个连续的探测分组。 每个探测分组对应于该组天线的不同子集，并且多个连续分组中的至少一个分组包括高吞吐量（HT）控制字段，包括用于发起天线选择的信号和指示多个探测分组的数量N 其遵循至少一个包括HT控制字段并将用于天线选择的分组。 基于由接收的N个探测分组指示的信道的特性来估计信道矩阵，并且根据信道矩阵选择天线的子集。 站和计算机程序产品实施例包括类似的特征。

公开(公告)号：US08218523B2

公开(公告)日：2012-07-10

申请号：US12419874

申请日：2009-04-07

申请人： Zhifeng Tao ,  Philip V. Orlik ,  Zafer Sahinoglu ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Philip V. Orlik ,  Zafer Sahinoglu ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04J3/16

CPC分类号： H04L1/1621 ,  H04L27/26 ,  H04L2001/0093 ,  H04L2001/0097

摘要： A network includes a master node (master) and a set of slave nodes (slaves). The network uses orthogonal frequency-division multiplexing (OFDM) and time division multiple access (TDMA) symbols on sub-carriers. During a first downlink transmission from the master to the set of slaves using downlinks and all of the sub-carriers, a broadcast polling packet including data packets for each slave and sub-carrier assignments for the slaves is broadcast. Each slave transmits simultaneously to the master using uplinks and the assigned sub-carriers, a first response packet after receiving the broadcast polling packet. The master then broadcasts using the downlinks and all of the sub-carriers, a group acknowledgement packet, wherein the broadcast polling packet, the response packet, and the group acknowledgement packet include one superframe in one communication cycle, and wherein the broadcasting on the downlinks and the transmitting on the uplinks are disjoint in time.

摘要翻译： 网络包括主节点（主节点）和一组从节点（从节点）。 该网络在子载波上使用正交频分复用（OFDM）和时分多址（TDMA）符号。 在使用下行链路和所有子载波从主机到从机组的第一次下行链路传输期间，广播包括用于每个从机的数据分组的广播轮询分组和用于从机的子载波分配。 每个从设备使用上行链路和分配的子载波同时发送到主设备，第一响应分组在接收到广播轮询分组之后。 然后主机使用下行链路和所有子载波，一组确认分组广播，其中广播轮询分组，响应分组和组确认分组在一个通信周期中包括一个超帧，并且其中在下行链路上进行广播 并且在上行链路上的发送在时间上是不相交的。

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：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。