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Physical layer design for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) in wireless local area network (WLAN) systems

机译:无线局域网(WLAN)系统中的上行链路(UL)多用户多输入多输出(MU-MIMO)的物理层设计

摘要

Certain aspects of the present disclosure provide methods and apparatus for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) transmissions in a High Efficiency WLAN (HEW) system. One example method generally includes generating a packet having a preamble portion and transmitting the packet. The preamble portion typically includes a long training field (LTF); a first signal (SIG) field subsequent to the LTF; one or more other LTFs located subsequent to the first SIG field; and at least one second SIG field, wherein all SIG fields in the preamble portion, other than the first SIG field, are subsequent to the one or more other LTFs. Another example method generally includes receiving, from an apparatus, a packet having a preamble portion comprising tone-interleaved LTFs; and performing frequency offset adjustment on the packet based on the tone-interleaved LTFs.
机译:本公开的某些方面提供了用于高效WLAN(HEW)系统中的上行链路(UL)多用户多输入,多输出(MU-MIMO)传输的方法和装置。一种示例方法通常包括生成具有前导部分的分组并发送该分组。前导部分通常包括一个长训练字段(LTF); LTF之后的第一信号(SIG)字段;位于第一SIG字段之后的一个或多个其他LTF;至少一个第二SIG字段,其中除了第一SIG字段之外,前导部分中的所有SIG字段都在一个或多个其他LTF之后。另一示例方法通常包括:从设备接收具有包括音调交织的LTF的前同步码部分的分组;根据所述音调交织的LTF对所述报文进行频偏调整。

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