Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system
    1.
    发明申请
    Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system 有权
    多天线正交频分复用通信系统中自适应比特加载的系统和方法

    公开(公告)号:US20050147076A1

    公开(公告)日:2005-07-07

    申请号:US10750587

    申请日:2003-12-29

    摘要: In an orthogonal frequency division multiplexed (OFDM) system, a transmitter and/or receiver communicate separate data streams on non-orthogonal spatial channels. Each spatial channel may use the same set of OFDM subcarriers and may take advantage of the multipath characteristics of the spatial channel allowing the communication of additional data without an increase in frequency bandwidth. Space-frequency subcarrier modulation assignments may be dynamically assigned on a per subcarrier basis as well as a per spatial channel basis to help maximize the data-carrying capacity of the channel. In some embodiments, each of the spatial channels may be associated with one of a plurality of spatially diverse antennas. In other embodiments, beamforming may be performed to allow the transmission and/or reception of signals within the spatial channels.

    摘要翻译: 在正交频分复用(OFDM)系统中,发射机和/或接收机在非正交空间信道上传送单独的数据流。 每个空间信道可以使用相同的OFDM子载波集合,并且可以利用空间信道的多径特性,允许附加数据的通信而不增加频带宽度。 可以在每个子载波基础上以及每个空间信道基础上动态分配空频子载波调制分配,以帮助最大化信道的数据承载能力。 在一些实施例中,每个空间信道可以与多个空间多样的天线中的一个相关联。 在其他实施例中,可以执行波束成形以允许空间信道内的信号的发送和/或接收。

    System and method for compensation of non-linear transmitter distortion
    4.
    发明授权
    System and method for compensation of non-linear transmitter distortion 有权
    用于补偿非线性变送器的系统和方法

    公开(公告)号:US07924956B2

    公开(公告)日:2011-04-12

    申请号:US11910138

    申请日:2005-03-31

    IPC分类号: H03D1/04

    摘要: A system, apparatus, method and article to provide compensation of non-linear transmitter distortion are described. The apparatus may include a receiver node (130) to receive information from a transmitter node (120). The receiver node (130) may include a clipping ratio estimation module (142) to determine parameters of non-linearity of a transmitter at the receiver node (130), a training signal predistortion block (150) to generate predistorted training symbols at the receiver node (130) using the parameters of non-linearity, and a channel equalization block (146) to performing linear equalization at the receiver node (130) using the predistorted training symbols. Other embodiments are described and claimed.

    摘要翻译: 描述了提供非线性发射机失真补偿的系统,装置,方法和制品。 该装置可以包括从发射机节点(120)接收信息的接收机节点(130)。 接收机节点(130)可以包括限幅比估计模块(142),用于确定接收机节点(130)处的发射机的非线性参数;训练信号预失真块(150),用于在接收机处产生预失真的训练符号 使用非线性参数的节点(130)和使用预失真训练符号在接收机节点(130)处执行线性均衡的信道均衡块(146)。 描述和要求保护其他实施例。

    SYSTEM AND METHOD FOR COMPENSATION OF NON-LINEAR TRANSMITTER DISTORTION
    6.
    发明申请
    SYSTEM AND METHOD FOR COMPENSATION OF NON-LINEAR TRANSMITTER DISTORTION 有权
    用于补偿非线性发射机失真的系统和方法

    公开(公告)号:US20090129257A1

    公开(公告)日:2009-05-21

    申请号:US11910138

    申请日:2005-03-31

    IPC分类号: H04J11/00

    摘要: A system, apparatus, method and article to provide compensation of non-linear transmitter distortion are described. The apparatus may include a receiver node (130) to receive information from a transmitter node (120). The receiver node (130) may include a clipping ratio estimation module (142) to determine parameters of non-linearity of a transmitter at the receiver node (130), a training signal predistortion block (150) to generate predistorted training symbols at the receiver node (130) using the parameters of non-linearity, and a channel equalization block (146) to performing linear equalization at the receiver node (130) using the predistorted training symbols. Other embodiments are described and claimed.

    摘要翻译: 描述了提供非线性发射机失真补偿的系统,装置,方法和制品。 该装置可以包括从发射机节点(120)接收信息的接收机节点(130)。 接收机节点(130)可以包括限幅比估计模块(142),用于确定接收机节点(130)处的发射机的非线性参数;训练信号预失真块(150),用于在接收机处产生预失真的训练符号 使用非线性参数的节点(130)和使用预失真训练符号在接收机节点(130)处执行线性均衡的信道均衡块(146)。 描述和要求保护其他实施例。

    Method and apparatus to provide data packet
    10.
    发明申请
    Method and apparatus to provide data packet 审中-公开
    提供数据包的方法和装置

    公开(公告)号:US20060007898A1

    公开(公告)日:2006-01-12

    申请号:US10743309

    申请日:2003-12-23

    IPC分类号: H04Q7/24

    摘要: Briefly, a wireless communication system that may transmit and/or receive a data packet that may be generated by at least one of the wireless communication devices operated within the wireless communication system. The data packet may include at least one of a compatibility preamble field, a prefix training field, a physical layer convergence protocol header, a data field, a bit power load field and a postfix training field. At least some of the data packet fields may be encoded with a predetermined code and may be modulated by a predetermined modulation scheme.

    摘要翻译: 简而言之,可以发送和/或接收可由无线通信系统内操作的至少一个无线通信设备生成的数据分组的无线通信系统。 数据分组可以包括兼容性前导字段,前缀训练字段,物理层收敛协议报头,数据字段,位功率负载字段和后缀训练字段中的至少一个。 至少一些数据分组字段可以用预定的代码编码,并且可以通过预定的调制方案进行调制。