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Generalized reference signaling scheme for multi-user multiple input, multiple output (MU-MIMO) using arbitrarily precoded reference signals
Generalized reference signaling scheme for multi-user multiple input, multiple output (MU-MIMO) using arbitrarily precoded reference signals
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机译:使用任意预编码参考信号的多用户多输入多输出(MU-MIMO)的通用参考信令方案
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摘要
A multi-user MIMO downlink beamforming system (200) is provided to enable transmit beamforming vectors to be efficiently provided to a subset of user equipment devices (201.i), where spatial separation or zero-forcing transmit beamformers (wi) are computed at the base station (210) and used to generate precoded reference signals (216). The precoded reference signals (216) are fed forward to the user equipment devices (201.i) which apply one or more hypothesis tests (207.i, 208.i) to the precoded reference signals to extract the precoding matrix (W), including the specific transmit beamforming vector (wUE) designed for the user equipment, and this extracted information is used to generate receive beamformers (vi).
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机译:提供了一种多用户MIMO下行链路波束成形系统( 200 B>),以使发送波束成形向量可以有效地提供给用户设备( 201。 B> i)的子集。 I>),其中在基站( 210 B>)上计算空间间隔或强制零的发送波束成形器(w i Sub>),并用于生成预编码的参考信号( 216 B>)。预编码的参考信号( 216 B>)被前馈到用户设备( 201。 B> i I>),后者应用一个或多个假设检验(< B> 207。 B> i, I> 208。 B> i I>)提取预编码参考信号(W),包括为用户设备设计的特定发射波束成形矢量(w UE Sub>),提取的信息用于生成接收波束成形器(v i Sub>)。
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