Method for setting modulation and coding scheme in wireless ran system and apparatus supporting the same

摘要

A method for setting a modulation and coding scheme (MCS) in a wireless local area network (WLAN) system supporting multiple input multiple output (MIMO) and a station supporting the method are provided. The method for setting the MCS and the station for supporting the method include: dividing a plurality of transmission (TX)/reception (RX) interfaces of the transmitting station into at least one bundled interface including at least one of the TX/RX interfaces; modulating a data stream to be transmitted through the TX/RX interface included in the at least one bundled interface by applying the MCS on a bundled interface basis; and spatially multiplexing the modulated data stream and transmitting the multiplexed modulated data stream through each of the plurality of TX/RX interfaces.

主权项

1. A method of transmitting data by a multi-user multiple input/multiple output (MU-MIMO) transmitter in a wireless local area network system, the method comprising:
generating, by the MU-MIMO transmitter, a physical layer convergence procedure (PLCP) protocol data unit (PPDU), the PPDU including a data field, one or more bundled interface fields corresponding to one or more stations, respectively, and a modulation and coding scheme (MCS) index field corresponding to one of the one or more bundled interface fields; and transmitting, by the MU-MIMO transmitter, the PPDU to one or more stations, wherein each of the one or more bundled interface fields indicates a number of a plurality of spatial streams allocated to a corresponding station, wherein the MCS index field indicates a same MCS index used for modulating and coding all of the plurality of spatial streams indicated by a corresponding bundled interface field, and wherein the data field is modulated and coded by an MCS scheme indicated by the MCS index field and transmitted via plurality of spatial streams indicated by a bundled interface field corresponding to the MCS index field.