SDMA communications with non-immediate block acknowledgment
    33.
    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。

    Reference signals for downlink beamforming validation in wireless multicarrier MIMO channel
    35.
    发明授权
    Reference signals for downlink beamforming validation in wireless multicarrier MIMO channel 有权
    用于无线多载波MIMO信道中的下行链路波束成形验证的参考信号

    公开(公告)号:US07720470B2

    公开(公告)日:2010-05-18

    申请号:US11455891

    申请日:2006-06-19

    IPC分类号: H04W24/00 H04B1/18

    摘要: Dedicated pilot signals are transmitted from a transmitting device to a receiving device through a multicarrier MIMO channel in addition to data signals and common pilot signals. The dedicated pilot signals may be used by the receiving device to validate whether a predetermined beamforming matrix (i.e., a beamforming matrix identified by the receiving device) was used by the transmitting device to precode the transmitted data. If a different beamforming matrix was used for the preceding, the receiving device may use this matrix to demodulate the received data.

    摘要翻译: 专用导频信号除了数据信号和公共导频信号之外,还通过多载波MIMO信道从发送装置发送到接收装置。 接收装置可以使用专用导频信号来验证发送装置是否使用预定的波束形成矩阵(即由接收装置识别的波束成形矩阵)来对发送的数据进行预编码。 如果使用不同的波束形成矩阵进行预编码,则接收设备可以使用该矩阵来解调所接收的数据。

    Reference signals for downlink beamforming validation in wireless multicarrier MIMO channel
    36.
    发明申请
    Reference signals for downlink beamforming validation in wireless multicarrier MIMO channel 有权
    用于无线多载波MIMO信道中的下行链路波束成形验证的参考信号

    公开(公告)号:US20070293172A1

    公开(公告)日:2007-12-20

    申请号:US11455891

    申请日:2006-06-19

    IPC分类号: H04B1/18

    摘要: Dedicated pilot signals are transmitted from a transmitting device to a receiving device through a multicarrier MIMO channel in addition to data signals and common pilot signals. The dedicated pilot signals may be used by the receiving device to validate whether a predetermined beamforming matrix (i.e., a beamforming matrix identified by the receiving device) was used by the transmitting device to precode the transmitted data. If a different beamforming matrix was used for the preceding, the receiving device may use this matrix to demodulate the received data.

    摘要翻译: 专用导频信号除了数据信号和公共导频信号之外,还通过多载波MIMO信道从发送装置发送到接收装置。 接收装置可以使用专用导频信号来验证发送装置是否使用预定的波束形成矩阵(即由接收装置识别的波束成形矩阵)来对发送的数据进行预编码。 如果使用不同的波束形成矩阵进行预编码,则接收设备可以使用该矩阵来解调所接收的数据。

    Back-end alignment to avoid SDMA ACK time-out
    38.
    发明申请
    Back-end alignment to avoid SDMA ACK time-out 审中-公开
    后端对齐以避免SDMA ACK超时

    公开(公告)号:US20050144307A1

    公开(公告)日:2005-06-30

    申请号:US10737142

    申请日:2003-12-15

    IPC分类号: H04L1/16 H04L1/18 G06F15/16

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

    摘要: In a base station using spatial division multiple access communications, different length transmissions directed from a base station to different multiple mobile devices substantially simultaneously may have their start times adjusted so that the transmissions end at approximately the same time. The mobile devices may then respond during a response period with acknowledgments at approximately the same time. Thus all the acknowledgments may be received within the same time period from the end of the transmissions, reducing the likelihood of missed acknowledgments in responses to the shorter transmissions.

    摘要翻译: 在使用空分多址通信的基站中,基本上同时从基站到不同的多个移动设备的不同长度的传输可以调整其起始时间,使得传输在大致相同的时间结束。 然后,移动设备可以在响应周期期间在大约相同的时间进行确认。 因此,所有的确认可以在从传输结束的相同的时间段内被接收,从而减少对较短的传输的响应中错过的确认的可能性。

    SDMA training and operation
    39.
    发明申请
    SDMA training and operation 审中-公开
    SDMA培训和运营

    公开(公告)号:US20050111427A1

    公开(公告)日:2005-05-26

    申请号:US10719470

    申请日:2003-11-21

    摘要: A network comprising a base station and multiple mobile devices may use a training phase for the base station to develop parameters that enable spatial division multiple access (SDMA) techniques to be used for communications with the mobile devices, and to subsequently use those parameters in a data phase, thus permitting substantially simultaneous transmissions to, and substantially simultaneous receptions from, the multiple mobile devices on the same frequency.

    摘要翻译: 包括基站和多个移动设备的网络可以使用用于基站的训练阶段来开发能够使空分多址(SDMA)技术用于与移动设备通信的参数,并且随后在 从而允许同一频率上的多个移动设备的基本上同时的传输和基本上同时的接收。