SDMA communications with non-immediate block acknowledgment
    37.
    发明申请
    SDMA communications with non-immediate block acknowledgment 审中-公开
    SDMA通信与非即时块确认

    公开(公告)号:US20050129101A1

    公开(公告)日:2005-06-16

    申请号:US10737639

    申请日:2003-12-15

    CPC分类号: H04L1/16 H04L1/1854 H04L1/188

    摘要: In Spatial Division Multiple Access (SDMA) communications, mobile devices that are transmitting to a base station substantially simultaneously during a predetermined communications phase may wait until after an end of the predetermined communications phase to receive acknowledgments to their transmissions, so that a mobile device making a relatively short transmission does not experience an acknowledgment timeout while another mobile device is still completing a relatively long transmission. In some embodiments, the mobile devices may transmit a non-immediate block acknowledgment request during the communications phase.

    摘要翻译: 在空分多址(SDMA)通信中,在预定通信阶段基本上同时向基站发送的移动设备可以等待直到预定通信阶段结束,以接收对其传输的确认,从而使移动设备 相对短的传输在另一个移动设备仍然完成相对较长的传输时不经历确认超时。 在一些实施例中,移动设备可以在通信阶段期间发送非即时块确认请求。

    Techniques to time vary pilot locations in wireless networks
    38.
    发明申请
    Techniques to time vary pilot locations in wireless networks 有权
    时间不同的技术使无线网络中的导频位置变化

    公开(公告)号:US20090202011A1

    公开(公告)日:2009-08-13

    申请号:US12384688

    申请日:2009-04-07

    IPC分类号: H04L27/28 H04B1/10 H04B7/00

    摘要: An embodiment of the present invention provides an apparatus, comprising a receiver capable of selecting optimal pilot locations and providing feedback of the pilot locations to a transmitter in communication with the receiver. The optimal pilot locations may be selected by locations that avoid strong interference or platform noise at the receiver, by locations that avoid deep fading, by locations that maximize the spacing between pilot tones at the two ends of a wireless frequency band or by locations that equalize the interspacing between any two adjacent pilots.

    摘要翻译: 本发明的一个实施例提供了一种装置,包括能够选择最佳导频位置并且向与接收机通信的发射机提供导频位置的反馈的接收机。 最佳导频位置可以由避免接收机强烈干扰或平台噪声的位置通过避免深度衰落的位置通过最大化无线频带两端的导频音之间的间隔的位置来选择,或者通过均衡的位置 任何两个相邻飞行员之间的间隔。