EFFICIENT GROUP DEFINITION AND OVERLOADING FOR MULTIUSER MIMO TRANSMISSIONS Russian patent published in 2014 - IPC H04B7/04 

FIELD: radio engineering, communication.

SUBSTANCE: invention discloses a method comprising indicating to each apparatus of a plurality of apparatus, a position of that apparatus in each group of apparatus from a plurality of groups for allocating one or more spatial streams; generating a preamble comprising a first field of y bits identifying a group in the plurality of up to 2^y groups for receiving simultaneous data transmissions; and transmitting, to the apparatus, at least a portion of the preamble with the first field preceding the simultaneous data transmissions destined for a set of apparatus selected from the group, wherein allocation of one or more spatial streams of the simultaneous data transmissions to each apparatus from the set is specified by the portion of preamble and by the indicated position of that apparatus in the group.

EFFECT: high efficiency.

55 cl, 9 dwg