Wireless UWB Connection for Rotating RF Antenna Array
    41.
    发明申请
    Wireless UWB Connection for Rotating RF Antenna Array 失效
    用于旋转RF天线阵列的无线UWB连接

    公开(公告)号:US20090189820A1

    公开(公告)日:2009-07-30

    申请号:US12019737

    申请日:2008-01-25

    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。

    OFDMA Frame Structures for Uplinks in MIMO Networks
    42.
    发明申请
    OFDMA Frame Structures for Uplinks in MIMO Networks 审中-公开
    OFDMA帧结构在MIMO网络中的上行链路

    公开(公告)号:US20090180459A1

    公开(公告)日:2009-07-16

    申请号:US12240164

    申请日:2008-09-29

    IPC分类号: H04B7/208 H04L27/28

    摘要: A method communicates symbols in a cell of a multiple-input multiple-output (MIMO) network that includes a set of mobile station and a base station. The symbols are communicated using orthogonal frequency division multiplexing (OFDM) and time division duplex (TDM). A frame for communicating the symbols between the base station and the mobile station is constructed. The frame is partitioned into a downlink subframe and an uplink subframe. The uplink subframe is partitioned into a first zone and a second zone, wherein the first zone uses orthogonal frequency division multiple access (OFDMA) and the second zone uses single carrier frequency division multiple access (SC-FDMA).

    摘要翻译: 一种方法在包括一组移动台和基站的多输入多输出(MIMO)网络的小区中传送符号。 使用正交频分复用(OFDM)和时分双工(TDM)来传送符号。 构建用于在基站和移动站之间传送符号的帧。 帧被划分为下行链路子帧和上行链路子帧。 上行链路子帧被划分为第一区域和第二区域,其中第一区域使用正交频分多址(OFDMA),第二区域使用单载波频分多址(SC-FDMA)。

    Cooperative Base Stations in Wireless Networks
    43.
    发明申请
    Cooperative Base Stations in Wireless Networks 有权
    无线网络中的合作基站

    公开(公告)号:US20090117911A1

    公开(公告)日:2009-05-07

    申请号:US11934131

    申请日:2007-11-02

    IPC分类号: H04Q7/20

    摘要: The embodiments of the invention provide an adaptive method for base station cooperation in a wireless network. In a multi-user communications network that includes base stations, and in which each base station is associated with a cell, and in which each cell includes one or more mobile stations, each base station determines pre-coding matrices for full-cooperation, semi-cooperation and non-cooperation. Each base stations also determines a sum rate SRfull for full-cooperation, a sum rate SRsemi semi-cooperation, and a sum rate SRnon for non-cooperation. Then, each base station selects the pre-coding for full-cooperation, the pre-coding matrices for semi cooperation, or the pre-coding matrices for non cooperation. Each base station transmits signals according to the selected per-coding matrices.

    摘要翻译: 本发明的实施例提供了一种用于无线网络中的基站协作的自适应方法。 在包括基站并且其中每个基站与小区相关联并且每个小区包括一个或多个移动站的多用户通信网络中,每个基站确定用于全协作的预编码矩阵,半 合作不合作。 每个基站还确定全面合作的总和速率,SRsemi半合作率和非合作的总和速率SRnon。 然后,每个基站选择用于全协作的预编码,用于半合作的预编码矩阵,或者用于非合作的预编码矩阵。 每个基站根据所选择的每个编码矩阵发送信号。

    Training signals for selecting antennas and beams in MIMO wireless LANs
    44.
    发明授权
    Training signals for selecting antennas and beams in MIMO wireless LANs 有权
    训练信号用于在MIMO无线局域网中选择天线和波束

    公开(公告)号:US08514815B2

    公开(公告)日:2013-08-20

    申请号:US12088285

    申请日:2005-09-30

    IPC分类号: H04W4/00

    摘要: A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets, and a subset of antennas is selected according to the channel matrix.

    摘要翻译: 计算机实现的方法选择包括多个站的多输入多输出无线局域网中的天线,并且每个站包括一组天线。 在站中接收到多个连续发送的探测包。 每个探测包对应于该组天线的不同子集。 从多个连续发送的探测分组估计信道矩阵,并根据信道矩阵选择天线子集。

    Method for selecting antennas and beams in MIMO wireless LANs
    45.
    发明授权
    Method for selecting antennas and beams in MIMO wireless LANs 有权
    MIMO无线局域网中选择天线和波束的方法

    公开(公告)号:US08374096B2

    公开(公告)日:2013-02-12

    申请号:US12094441

    申请日:2005-11-21

    IPC分类号: H04W4/00

    摘要: A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets. A frame including a high throughput (HT) control field is sent to initiate a selecting of antennas, and a subset of antennas is selected according to the channel matrix.

    摘要翻译: 计算机实现的方法选择包括多个站的多输入多输出无线局域网中的天线,并且每个站包括一组天线。 在站中接收到多个连续发送的探测包。 每个探测包对应于该组天线的不同子集。 从多个连续发送的探测包估计信道矩阵。 发送包括高吞吐量(HT)控制字段的帧以发起天线的选择,并且根据信道矩阵选择天线子集。

    Method for transmitting packets in relay networks
    47.
    发明授权
    Method for transmitting packets in relay networks 有权
    在中继网络中传输数据包的方法

    公开(公告)号:US08243649B2

    公开(公告)日:2012-08-14

    申请号:US12324604

    申请日:2008-11-26

    IPC分类号: H04B7/14

    CPC分类号: H04B7/15592

    摘要: A method transmits an L bit packet in a relay network including a source node, a relay node and a destination node. The source node partitions the packet into first fragment of βL bits and a second fragment of (1−β) bits. The first fragment is transmitted from the source node to the relay node at a first data rate during a first phase. The second fragment is transmitted from the source node to the destination node at a second data rate during a second phase while the first fragment is retransmitted from the relay node to the destination node at a third data rate.

    摘要翻译: 一种方法在包括源节点,中继节点和目的节点的中继网络中发送L比特分组。 源节点将数据包分成第一个片段(bgr; L位)和第二个片段(1-&bgr))。 在第一阶段期间,第一片段以第一数据速率从源节点传送到中继节点。 第二片段在第二阶段期间以第二数据速率从源节点传送到目的地节点,而第一片段以第三数据速率从中继节点重传到目的地节点。

    Antenna selection with RF imbalance
    48.
    发明授权
    Antenna selection with RF imbalance 有权
    天线选择与RF不平衡

    公开(公告)号:US07917107B2

    公开(公告)日:2011-03-29

    申请号:US11387252

    申请日:2006-03-23

    IPC分类号: H04B7/08

    摘要: A method for selecting antennas in a multiple-input, multiple-output wireless communications network that includes multiple stations is presented. Each station includes a set of transmit RF chains and a set of receive RF chains, and each RF chain is connectable to a set of antennas. A first station transmits a training frame for each possible subset of the set of antennas, and the set of transmit RF chains are connected to the subset of antennas according to a connection mapping rule while transmitting each training frame. A subchannel matrix is estimated in a second station for each frame. The subchannel matrices are combined to obtain a complete channel matrix. A particular subset of the antennas is selected according to the complete channel matrix. The set of transmit RF chains is connected to the selected particular subset of antennas to transmit data from the first station to the second station.

    摘要翻译: 提出了一种在包含多个站的多输入,多输出无线通信网络中选择天线的方法。 每个站包括一组发射RF链和一组接收RF链,并且每个RF链可连接到一组天线。 第一台站发送针对该组天线的每个可能子集的训练帧,并且该组发射RF链根据连接映射规则连接到天线子集,同时传输每个训练帧。 在每个帧的第二站中估计子信道矩阵。 子信道矩阵被组合以获得完整的信道矩阵。 根据完整的信道矩阵来选择天线的特定子集。 发射RF链的集合被连接到所选择的特定天线子集,以将数据从第一站传送到第二站。

    Method for Transmitting Packets in Relay Networks
    49.
    发明申请
    Method for Transmitting Packets in Relay Networks 有权
    在中继网络中传输数据包的方法

    公开(公告)号:US20100128651A1

    公开(公告)日:2010-05-27

    申请号:US12324604

    申请日:2008-11-26

    IPC分类号: H04B7/14

    CPC分类号: H04B7/15592

    摘要: A method transmits an L bit packet in a relay network including a source node, a relay node and a destination node. The source node partitions the packet into first fragment of βL bits and a second fragment of (1−β) bits. The first fragment is transmitted from the source node to the relay node at a first data rate during a first phase. The second fragment is transmitted from the source node to the destination node at a second data rate during a second phase while the first fragment is retransmitted from the relay node to the destination node at a third data rate.

    摘要翻译: 一种方法在包括源节点,中继节点和目的节点的中继网络中发送L比特分组。 源节点将数据包分成第一个片段(bgr; L位)和第二个片段(1-&bgr))。 在第一阶段期间,第一片段以第一数据速率从源节点传送到中继节点。 第二片段在第二阶段期间以第二数据速率从源节点传送到目的地节点,而第一片段以第三数据速率从中继节点重传到目的地节点。

    Analogue Beamforming
    50.
    发明申请
    Analogue Beamforming 审中-公开
    模拟波束成形

    公开(公告)号:US20090225728A1

    公开(公告)日:2009-09-10

    申请号:US12358467

    申请日:2009-01-23

    IPC分类号: H04B7/212 H04W4/00

    摘要: An orthogonal frequency division multiple access (OFDMA) network including a base station (BS) associated with a set of mobile stations (MS) in a cell. The set of MS are grouped into sets of active MS, wherein each set of active MS corresponds to a beam formed at the BS. The BS transmits a down link (DL) subframe using analog beam forming (ABF), wherein the DL subframe has one ABF zone for each set of active MS and each corresponding beam.

    摘要翻译: 一种正交频分多址(OFDMA)网络,包括与小区中的一组移动站(MS)相关联的基站(BS)。 该组MS被分组成活动MS集合,其中每组有效MS对应于在BS处形成的一个波束。 BS使用模拟波束形成(ABF)发送下行链路(DL)子帧,其中DL子帧对于每组有效MS和每个对应的波束具有一个ABF区。