FIG. 3 is a timeline of a MU-MIMO downlink in accordance with an embodiment of the invention incorporating hybrid spatial mapping using both explicit sounding and crosstalk tracking;
FIG. 4A is a graphs of communication channel variations as a function of time;
FIGS. 4B-D are graphs of communication channel variations as a function of time with and without explicit soundings;
FIG. 4E is a graph of explicit sounding overhead as a function of modulation and code schema (MCS) used to transmit sounding feedback;
FIGS. 4F-G are graphs of communication channel variations as a function of time with the hybrid spatial mapping of an embodiment of the invention;
FIG. 5 is a hardware block diagram of a WAP and two stations configured to support the hybrid spatial mapping for MU-MIMO downlinks of an embodiment of the current invention;
FIG. 6 is a detailed circuit diagram of hybrid spatial mapping circuits in the WAP and Stations as shown in FIG. 5, in accordance with an embodiment of the current invention; and
FIG. 7 is a process flow diagram of processes associated with hybrid spatial mapping for MU-MIMO downlinks on both the WAP and stations in accordance with an embodiment of the invention.
DETAILED DESCRIPTION
