Channel mapping for OFDM
    32.
    发明授权
    Channel mapping for OFDM 有权
    OFDM的信道映射

    公开(公告)号:US07317680B2

    公开(公告)日:2008-01-08

    申请号:US10261739

    申请日:2002-10-01

    IPC分类号: H04J11/00

    摘要: The present invention provides a technique for supporting variable bitrate services in an OFDM environment while minimizing the impact of the variations of fading channels and interference. In general, a basic access channel (BACH) is defined by a set number of sub-carriers over multiple OFDM symbols. While the number of sub-carriers remains fixed for the BACH, the sub-carriers for any given BACH will hop from one symbol to another. Thus, the BACH is defined by a hopping pattern for a select number of sub-carriers over a sequence of symbols.

    摘要翻译: 本发明提供了一种用于在OFDM环境中支持可变比特率服务的技术,同时最小化衰落信道的变化和干扰的影响。 通常,基本接入信道(BACH)由多个OFDM符号上的设定数量的子载波定义。 虽然子载波的数量对于BACH保持固定,但是对于任何给定的BACH的子载波将从一个符号跳到另一个符号。 因此,BACH由符号序列上的选择数量的子载波的跳频模式定义。

    Multi-antenna scheduling system and method
    39.
    发明授权
    Multi-antenna scheduling system and method 有权
    多天线调度系统及方法

    公开(公告)号:US08351967B2

    公开(公告)日:2013-01-08

    申请号:US13252636

    申请日:2011-10-04

    IPC分类号: H04B7/00

    摘要: A wireless communication method and system using virtual MIMO (“V-MIMO”) are provided. Post processing signal to interference and noise ratios (“SINR”) for a plurality of signals corresponding to a plurality of mobile terminals arranged as a V-MIMO group are estimated. The one of the plurality of mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected mobile terminal is scheduled. The signal corresponding to the selected mobile terminal is cancelled. Post processing signal to interference and noise ratios (“SINR”) for the signals corresponding to the remaining mobile terminals is re-estimated. The one of the remaining mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected remaining mobile terminal is scheduled.

    摘要翻译: 提供了一种使用虚拟MIMO(V-MIMO)的无线通信方法和系统。 估计对应于排列为V-MIMO组的多个移动终端的多个信号的后处理信号与干扰和噪声比(SINR)。 选择具有最高后处理SINR的多个移动终端中的一个。 安排所选移动终端的无线通信。 对应于所选移动终端的信号被取消。 对与剩余的移动终端相对应的信号的后处理信号与干扰和噪声比(SINR)进行重新估计。 选择具有最高后处理SINR的剩余移动终端中的一个。 调度所选择的剩余移动终端的无线通信。

    Multi-antenna scheduling system and method
    40.
    发明授权
    Multi-antenna scheduling system and method 有权
    多天线调度系统及方法

    公开(公告)号:US08050697B2

    公开(公告)日:2011-11-01

    申请号:US11843098

    申请日:2007-08-22

    IPC分类号: H04B7/00

    摘要: A wireless communication method and system using virtual MIMO (“V-MIMO”) are provided. Post processing signal to interference and noise ratios (“SINR”) for a plurality of signals corresponding to a plurality of mobile terminals arranged as a V-MIMO group are estimated. The one of the plurality of mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected mobile terminal is scheduled. The signal corresponding to the selected mobile terminal is cancelled. Post processing signal to interference and noise ratios (“SINR”) for the signals corresponding to the remaining mobile terminals is re-estimated. The one of the remaining mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected remaining mobile terminal is scheduled.

    摘要翻译: 提供了一种使用虚拟MIMO(“V-MIMO”)的无线通信方法和系统。 估计与排列为V-MIMO组的多个移动终端对应的多个信号的后处理信号与干扰和噪声比(“SINR”)。 选择具有最高后处理SINR的多个移动终端中的一个。 安排所选移动终端的无线通信。 对应于所选移动终端的信号被取消。 重新估计对应于其余移动终端的信号的后处理信号与干扰和噪声比(“SINR”)。 选择具有最高后处理SINR的剩余移动终端中的一个。 调度所选择的剩余移动终端的无线通信。