Training signals for selecting antennas and beams in MIMO wireless LANs
    41.
    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
    42.
    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
    44.
    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
    45.
    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。

    Multiple access by varying received power in wireless networks
    46.
    发明授权
    Multiple access by varying received power in wireless networks 有权
    通过改变无线网络中的接收功率进行多重接入

    公开(公告)号:US07778659B2

    公开(公告)日:2010-08-17

    申请号:US11780578

    申请日:2007-07-20

    IPC分类号: H04B7/00

    CPC分类号: H04W52/286

    摘要: The invention describes a method for transmitting a packet in a wireless network of nodes. At a beginning of a scheduled time slot a metric in the node is set, in which the metric indicates a need to transmit a packet to a receiver in the wireless network. The metric is mapped to a received power level and the packet is transmitted at a transmit power level so that the received power level is achieved at the receiver.

    摘要翻译: 本发明描述了一种在节点的无线网络中发送分组的方法。 在调度时隙的开始,设置节点中的度量,其中度量指示需要向无线网络中的接收机发送分组。 度量被映射到接收的功率电平,并且以发射功率电平发送分组,使得在接收机处实现接收功率电平。

    Method for Transmitting Packets in Relay Networks
    47.
    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
    49.
    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。

    Method and system for antenna selection in wireless networks
    50.
    发明授权
    Method and system for antenna selection in wireless networks 有权
    无线网络天线选择方法与系统

    公开(公告)号:US07583939B2

    公开(公告)日:2009-09-01

    申请号:US11620105

    申请日:2007-01-05

    IPC分类号: H03C7/02 H04B7/02

    摘要: A method and system selects a subset of antennas from a set of antennas to transmit user data in a wireless communication system. The user data is transmitted during a first transmission time intervals (TTI) using a first subset of antennas. Pilot tones are transmitted during a second TTI using a second subset of antennas. Corresponding channel qualities are estimated for the first subset of antennas and the second subset of antennas from the user data and the pilot tones. Then, based on the estimating, a best subset of antenna is selected from the first subset of antennas and the second subset of antennas to transmit the user data during a subsequent TTI.

    摘要翻译: 一种方法和系统从一组天线中选择天线的子集以在无线通信系统中传送用户数据。 使用第一天线子集在第一传输时间间隔(TTI)期间发送用户数据。 在第二TTI期间使用第二天线子集来传送导频音调。 对于天线的第一子集和来自用户数据和导频音的第二子天线子集估计相应的信道质量。 然后,基于估计,从天线的第一子集和第二天线子集中选择天线的最佳子集,以在随后的TTI期间发送用户数据。