Patent ID: 8891666
Filing Date: 2014-11-18
Classification: H04B,H04W

Abstract:
1. A method of transmitting data to a receiver in a wireless local area network, the method comprising; transmitting, by a transmitter supporting a multi user (MU)—multiple input multiple output (MIMO) scheme and a single user (SU)—MIMO scheme, a management frame including group information to assign or change a position of at least one spatial stream of the receiver to at least one of a plurality of groups; and transmitting, by the transmitter, a data packet including a header that includes a group ID indication field, the group ID indication field indicating one of the plurality of groups and whether the data packet is transmitted based on the SU-MIMO scheme, wherein the group information includes a group indicator and a plurality of spatial stream (SS) indicators; wherein the group indicator indicates whether the receiver is a member of a corresponding group; and wherein each of the plurality of SS indicators indicates a position of the at least one spatial stream of the corresponding group.