Antenna/beam selection training in MIMO wireless LANS with different sounding frames
    41.
    发明授权
    Antenna/beam selection training in MIMO wireless LANS with different sounding frames 有权
    天线/波束选择训练在具有不同声音帧的MIMO无线LAN中

    公开(公告)号:US08284686B2

    公开(公告)日:2012-10-09

    申请号:US12293458

    申请日:2006-03-30

    IPC分类号: H04W4/00

    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。

    Multiple power-multiple access in wireless networks for interference cancellation
    42.
    发明授权
    Multiple power-multiple access in wireless networks for interference cancellation 有权
    无线网络中的多功率多重接入用于干扰消除

    公开(公告)号:US08054776B2

    公开(公告)日:2011-11-08

    申请号:US11941170

    申请日:2007-11-16

    IPC分类号: H04B7/204 H04W4/00 H04L12/43

    摘要: A method and network communicate packets by assigning, in each one of a set of multiple transmitters, a power level to a packet to be transmitted during a time interval. The power level is selected from a set of power levels available for the set of multiple transmitters. The power levels in the set range from highest to lowest. There is one packet for each transmitter such that there is a set of packets to be transmitted during the time interval. The set of packets is transmitted concurrently during the time interval to enable decoding of at least one of the packets in the set of packets during the time interval.

    摘要翻译: 一种方法和网络通过在一组多个发射机中的每一个中分配功率电平到在时间间隔内要发送的分组来传送分组。 功率电平是从一组可用于多个发射器的功率电平中选择的。 设定范围内的功率级别从最高到最低。 每个发射机有一个数据包,使得在时间间隔内有一组要发送的数据包。 在时间间隔期间并发传送数据包集合,以便能够在时间间隔期间对该组数据包中的至少一个数据包进行解码。

    Method for routing packets in wireless ad-hoc networks with probabilistic delay guarantees
    43.
    发明授权
    Method for routing packets in wireless ad-hoc networks with probabilistic delay guarantees 有权
    在具有概率延迟保证的无线自组织网络中路由数据包的方法

    公开(公告)号:US08040810B2

    公开(公告)日:2011-10-18

    申请号:US12324673

    申请日:2008-11-26

    IPC分类号: G01R31/08

    CPC分类号: H04W40/02 H04L45/121

    摘要: A method determines an optimal route to deliver a packet from a source node via relay nodes to a destination node in a network. A graph of nodes connected by edges represents possible routes in the network. A probability that the packet arrives at the destination before a deadline time is assigned to each edge. A minimal delay route is selected from the possible routes, and an arrival time for delivering the packet using the minimal delay route is determined. The arrival time is comparing to a deadline time, and the probabilities are scaled accordingly until the minimal delay route is an optimal route.

    摘要翻译: 一种方法确定了将来自源节点的分组经由中继节点传递到网络中的目的地节点的最佳路由。 通过边缘连接的节点图表示网络中的可能路由。 分组在最后期限之前到达目的地的概率被分配给每个边缘。 从可能的路由中选择最小延迟路由,并且确定使用最小延迟路由传递分组的到达时间。 到达时间与截止时间相比较,概率相应地缩放,直到最小延迟路由为最佳路由。

    Mapping for MIMO Communication Apparatus
    44.
    发明申请
    Mapping for MIMO Communication Apparatus 审中-公开
    MIMO通信设备映射

    公开(公告)号:US20100226415A1

    公开(公告)日:2010-09-09

    申请号:US12279914

    申请日:2006-02-28

    IPC分类号: H04L27/00 H04B1/38

    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。

    Method for Routing Packets in Wireless Ad-Hoc Networks with Probabilistic Delay Guarantees
    45.
    发明申请
    Method for Routing Packets in Wireless Ad-Hoc Networks with Probabilistic Delay Guarantees 有权
    用于具有概率延迟保证的无线Ad Hoc网络中路由分组的方法

    公开(公告)号:US20100128703A1

    公开(公告)日:2010-05-27

    申请号:US12324673

    申请日:2008-11-26

    IPC分类号: H04W40/02

    CPC分类号: H04W40/02 H04L45/121

    摘要: A method determines an optimal route to deliver a packet from a source node via relay nodes to a destination node in a network. A graph of nodes connected by edges represents possible routes in the network. A probability that the packet arrives at the destination before a deadline time is assigned to each edge. A minimal delay route is selected from the possible routes, and an arrival time for delivering the packet using the minimal delay route is determined. The arrival time is comparing to a deadline time, and the probabilities are scaled accordingly until the minimal delay route is an optimal route.

    摘要翻译: 一种方法确定了将来自源节点的分组经由中继节点传递到网络中的目的地节点的最佳路由。 通过边缘连接的节点图表示网络中的可能路由。 分组在最后期限之前到达目的地的概率被分配给每个边缘。 从可能的路由中选择最小延迟路由,并且确定使用最小延迟路由传递分组的到达时间。 到达时间与截止时间相比较,概率相应地缩放,直到最小延迟路由为最佳路由。

    Wireless UWB connection for rotating RF antenna array
    46.
    发明授权
    Wireless UWB connection for rotating RF antenna array 失效
    用于旋转射频天线阵列的无线UWB连接

    公开(公告)号:US07623081B2

    公开(公告)日:2009-11-24

    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。

    Wireless UWB Connection for Rotating RF Antenna Array
    47.
    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。

    Multiple Power-Multiple Access in Wireless Networks for Interference Cancellation
    48.
    发明申请
    Multiple Power-Multiple Access in Wireless Networks for Interference Cancellation 有权
    无线网络中的多重功率多重接入用于干扰消除

    公开(公告)号:US20090129366A1

    公开(公告)日:2009-05-21

    申请号:US11941170

    申请日:2007-11-16

    IPC分类号: H04B7/212

    摘要: A method and network communicate packets by assigning, in each one of a set of multiple transmitters, a power level to a packet to be transmitted during a time interval. The power level is selected from a set of power levels available for the set of multiple transmitters. The power levels in the set range from highest to lowest. There is one packet for each transmitter such that there is a set of packets to be transmitted during the time interval. The set of packets is transmitted concurrently during the time interval to enable decoding of at least one of the packets in the set of packets during the time interval.

    摘要翻译: 一种方法和网络通过在一组多个发射机中的每一个中分配功率电平到在时间间隔内要发送的分组来传送分组。 功率电平是从一组可用于多个发射器的功率电平中选择的。 设定范围内的功率级别从最高到最低。 每个发射机有一个数据包,使得在时间间隔内有一组要发送的数据包。 在时间间隔期间并发传送数据包集合,以便能够在时间间隔期间对该组数据包中的至少一个数据包进行解码。

    Training frames for MIMO stations
    49.
    发明授权
    Training frames for MIMO stations 失效
    MIMO站的训练帧

    公开(公告)号:US07486720B2

    公开(公告)日:2009-02-03

    申请号:US11127006

    申请日:2005-05-11

    IPC分类号: H04B1/38 H04B7/02 H04L27/00

    摘要: A method transmits training frames in a MIMO system. A long sequence of training frames is transmitted from a station B to a station A via a channel of the MIMO system, in which the station A includes NA antennas and NA—SS RF chains and the station B includes NB antennas and NB—SS RF chains, and a number of frames in the long sequence of training frames is at least equal to where is a lower bound operator. A short sequence of training frames is transmitted from the station A to the station B via the channel in response to receiving the long sequence of training frames. A number of frames in the short training sequence is at least equal to

    摘要翻译: 一种方法在MIMO系统中发送训练帧。 训练帧的长序列经由MIMO系统的信道从站B发送到站A,其中站A包括NA天线和NA SS-射频链,并且站B包括 NB天线和NB SS RF链,并且训练帧的长序列中的多个帧至少等于下界运算符的位置。 响应于接收到长的训练帧序列,经由信道将短序列的训练帧从站A发送到站B. 短训练序列中的多个帧至少等于

    Training signals for selecting antennas and beams in MIMO wireless LANs
    50.
    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。