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    • 81. 发明申请
    • SYSTEM AND METHOD FOR UPLINK MULTIPLE INPUT MULTIPLE OUTPUT TRANSMISSION
    • 上行多路输入多输出传输的系统和方法
    • WO2014022793A3
    • 2014-02-06
    • PCT/US2013/053460
    • 2013-08-02
    • QUALCOMM INCORPORATED
    • AKKARAKARAN, Sony J.BHARADWAJ, ArjunSAMBHWANI, Sharad Deepak
    • H04B7/04H04B7/06H04W72/14H04L1/00
    • Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In some particular aspects, an uplink MIMO transmission (e.g., a rank 2 transmission) may be established, wherein a primary stream transport block size (TBS) is determined in accordance with a received scheduling grant, and a modulation scheme for the transmission is determined in accordance with the TBS. Further, a predetermined spreading factor, such as a 2xSF2+2xSF4 spreading factor, may be configured for both uplink streams, independent of the TBS. Finally, the uplink MIMO transmission may be made in accordance with the determined TBS, modulation scheme, and spreading factor. In some examples, if the primary stream TBS or a determined secondary stream TBS is less than a minimum threshold TBS, the transmission may be reconfigured as a rank 1 transmission.
    • 提供了用于无线通信系统中的上行链路MIMO传输的方法和设备。 在一些特定方面中,可以建立上行链路MIMO传输(例如,秩2传输),其中主要流传输块大小(TBS)根据接收到的调度准许被确定,并且用于该传输的调制方案被确定 按照TBS。 此外,可以为两个上行流配置预定扩频因子,例如2xSF2 + 2xSF4扩频因子,与TBS无关。 最后,可以根据所确定的TBS,调制方案和扩频因子来进行上行链路MIMO传输。 在一些示例中,如果主要流TBS或确定的辅助流TBS小于最小阈值TBS,则传输可以被重新配置为秩1传输。