Hybrid MU-MIMO spatial mapping using both explicit sounding and crosstalk tracking in a wireless local area network

A wireless station supporting wireless communications with an associated wireless access point (WAP) on a wireless local area network (WLAN);

• and the wireless station comprising:
• hardware processing circuitry to perform hybrid spatial mapping feedback operations for multi-user (MU) multiple-input multiple-output (MIMO) downlinks from the WAP to a group of associated stations, including:
• a channel estimation circuit to determine a communication channel responsive to an explicit sounding from the WAP, and to transmit channel sounding feedback to the WAP indicating the determined communication channel, wherein the WAP is to determine a precode matrix based on the sounding feedback;
• and
• a crosstalk tracking circuit to determine an amount of crosstalk between portions of a spatially separated downlink MU-MIMO communication packet targeted for other stations in the group of associated stations, and to transmit crosstalk feedback to the WAP as to the determined amount of crosstalk, the WAP to make an adjustment to the precode matrix based on the crosstalk feedback.