OPEN LOOP SPATIAL PROCESSING
    21.
    发明申请
    OPEN LOOP SPATIAL PROCESSING 有权
    开环空间处理

    公开(公告)号:US20120275530A1

    公开(公告)日:2012-11-01

    申请号:US13457145

    申请日:2012-04-26

    IPC分类号: H04L1/02

    摘要: Methods and apparatus for multiple-input multiple-output (MIMO) transmissions are disclosed. A base station may precode wireless transmit/receive unit (WTRU)-specific reference signals and data that are transmitted to a WTRU using a randomly selected precoder. The precoder may be selected based on a predefined precoder selection sequence or by the base station. A different precoder may be applied to different resource blocks (RBs). In addition, a large delay cyclic delay diversity (CDD) or discrete Fourier transform (DFT) spreading may be applied on the WTRU-specific reference signals and the data. For heterogeneous deployed antennas, spatial diversity gain is achieved by dynamically scheduling resources between transmission points. A hopping scheme may be applied across the transmission points as the resources are dynamically partitioned between the transmission points. A different randomly selected precoder may be applied to each RB transmitted from a different transmission point.

    摘要翻译: 公开了用于多输入多输出(MIMO)传输的方法和装置。 基站可以使用随机选择的预编码器对无线发射/接收单元(WTRU)特定的参考信号和数据进行预编码,所述参考信号和数据被发送到WTRU。 可以基于预定义的预编码器选择序列或基站来选择预编码器。 不同的预编码器可以应用于不同的资源块(RB)。 此外,可以对WTRU特定的参考信号和数据应用大的延迟循环延迟分集(CDD)或离散傅立叶变换(DFT)扩展。 对于异构部署的天线,通过在传输点之间动态调度资源来实现空间分集增益。 当资源在传输点之间动态分配时,可以跨传输点应用跳频方案。 可以将不同的随机选择的预编码器应用于从不同传输点发送的每个RB。

    Open loop spatial processing
    22.
    发明授权
    Open loop spatial processing 有权
    开环空间处理

    公开(公告)号:US09331757B2

    公开(公告)日:2016-05-03

    申请号:US13457145

    申请日:2012-04-26

    摘要: Methods and apparatus for multiple-input multiple-output (MIMO) transmissions are disclosed. A base station may precode wireless transmit/receive unit (WTRU)-specific reference signals and data that are transmitted to a WTRU using a randomly selected precoder. The precoder may be selected based on a predefined precoder selection sequence or by the base station. A different precoder may be applied to different resource blocks (RBs). In addition, a large delay cyclic delay diversity (CDD) or discrete Fourier transform (DFT) spreading may be applied on the WTRU-specific reference signals and the data. For heterogeneous deployed antennas, spatial diversity gain is achieved by dynamically scheduling resources between transmission points. A hopping scheme may be applied across the transmission points as the resources are dynamically partitioned between the transmission points. A different randomly selected precoder may be applied to each RB transmitted from a different transmission point.

    摘要翻译: 公开了用于多输入多输出(MIMO)传输的方法和装置。 基站可以使用随机选择的预编码器对无线发射/接收单元(WTRU)特定的参考信号和数据进行预编码,所述参考信号和数据被发送到WTRU。 可以基于预定义的预编码器选择序列或基站来选择预编码器。 不同的预编码器可以应用于不同的资源块(RB)。 此外,可以对WTRU特定的参考信号和数据应用大的延迟循环延迟分集(CDD)或离散傅立叶变换(DFT)扩展。 对于异构部署的天线,通过在传输点之间动态调度资源来实现空间分集增益。 当资源在传输点之间动态分配时,可以跨传输点应用跳频方案。 可以将不同的随机选择的预编码器应用于从不同传输点发送的每个RB。

    Wireless communication method and apparatus for encoding and decoding beamforming vectors
    24.
    发明授权
    Wireless communication method and apparatus for encoding and decoding beamforming vectors 有权
    用于编码和解码波束成形向量的无线通信方法和装置

    公开(公告)号:US08064386B2

    公开(公告)日:2011-11-22

    申请号:US12174681

    申请日:2008-07-17

    IPC分类号: H04W4/00

    CPC分类号: H04B7/0452 H04B7/0665

    摘要: A wireless communication method and apparatus for encoding and decoding beamforming vectors are disclosed. A base station sends explicit signaling for a beamforming vector of a wireless transmit/receive unit (WTRU) and implicit signaling for beamforming vectors of interfering WTRUs. Each WTRU uses its own beam forming vector to estimate the beamforming vectors of each of the other WTRUs.

    摘要翻译: 公开了一种用于编码和解码波束形成向量的无线通信方法和装置。 基站发送用于无线发射/接收单元(WTRU)的波束成形向量的显式信令和用于干扰WTRU的波束形成向量的隐式信令。 每个WTRU使用其自己的波束形成向量来估计每个其他WTRU的波束成形向量。

    WIRELESS COMMUNICATION METHOD AND APPARATUS FOR ENCODING AND DECODING BEAMFORMING VECTORS
    26.
    发明申请
    WIRELESS COMMUNICATION METHOD AND APPARATUS FOR ENCODING AND DECODING BEAMFORMING VECTORS 有权
    无线通信方法和编码和解码波束形成矢量的装置

    公开(公告)号:US20090023451A1

    公开(公告)日:2009-01-22

    申请号:US12174681

    申请日:2008-07-17

    IPC分类号: H04Q7/20 H04M1/00

    CPC分类号: H04B7/0452 H04B7/0665

    摘要: A wireless communication method and apparatus for encoding and decoding beamforming vectors are disclosed. A base station sends explicit signaling for a beamforming vector of a wireless transmit/receive unit (WTRU) and implicit signaling for beamforming vectors of interfering WTRUs. Each WTRU uses its own beam forming vector to estimate the beamforming vectors of each of the other WTRUs.

    摘要翻译: 公开了一种用于编码和解码波束形成向量的无线通信方法和装置。 基站发送用于无线发射/接收单元(WTRU)的波束成形向量的显式信令和用于干扰WTRU的波束形成向量的隐式信令。 每个WTRU使用其自己的波束形成向量来估计每个其他WTRU的波束成形向量。

    METHOD AND APPARATUS FOR MEASURING AND REPORTING A RANK AND A PRECODING MATRIX FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION
    27.
    发明申请
    METHOD AND APPARATUS FOR MEASURING AND REPORTING A RANK AND A PRECODING MATRIX FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COMMUNICATION 有权
    用于测量和报告多输入多输出通信的RANK和预编码矩阵的方法和装置

    公开(公告)号:US20120076182A1

    公开(公告)日:2012-03-29

    申请号:US13311110

    申请日:2011-12-05

    IPC分类号: H04B1/38

    摘要: A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple-input multiple-output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank.

    摘要翻译: 公开了一种用于测量和报告用于多输入多输出(MIMO)通信的秩和/或预编码矩阵的方法和装置。 测量指示信道条件的度量,并且基于度量来选择秩。 该度量可以是信号与干扰和噪声比(SINR),吞吐量,块错误率(BLER),系统容量,和速率等。 计算每个等级的每个无线电块组(RBG)的SINR。 基于每个等级的SINR计算每个RBG的数据速率。 对每个等级计算所有RBG的总体利率。 基于总体速率选择至少一个等级。 至少一个预编码矩阵可以与至少一个等级联合或分开选择。

    Method and apparatus for measuring and reporting a rank and a precoding matrix for multiple-input multiple-output communication
    28.
    发明授权
    Method and apparatus for measuring and reporting a rank and a precoding matrix for multiple-input multiple-output communication 有权
    用于测量和报告用于多输入多输出通信的秩和预编码矩阵的方法和装置

    公开(公告)号:US08072899B2

    公开(公告)日:2011-12-06

    申请号:US12496129

    申请日:2009-07-01

    IPC分类号: H04L12/26 H04L17/28 H04B7/00

    摘要: A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple-input multiple-output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank.

    摘要翻译: 公开了一种用于测量和报告用于多输入多输出(MIMO)通信的秩和/或预编码矩阵的方法和装置。 测量指示信道条件的度量,并且基于度量来选择秩。 该度量可以是信号与干扰和噪声比(SINR),吞吐量,块错误率(BLER),系统容量,和速率等。 计算每个等级的每个无线电块组(RBG)的SINR。 基于每个等级的SINR计算每个RBG的数据速率。 对每个等级计算所有RBG的总体利率。 基于总体速率选择至少一个等级。 至少一个预编码矩阵可以与至少一个等级联合或分开选择。