METHOD AND SYSTEM FOR MIMO TRANSMISSION IN MILLIMETER-WAVE WLAN

Methods and apparatus are disclosed for Orthogonal Frequency Division Multiplexing (OFDM) and/or Single Carrier (SC) based Multiple Input Multiple Output (MIMO) Hybrid Beamforming (HBF), including determining capabilities of a Station (STA), such as capabilities for Hybrid Beamforming, Single User MIMO (SU-MIMO), and Multi User MIMO (MU-MIMO). An announcement frame with a control end may be sent to signal a transmission configuration. The advertisement frame may be a grant frame or a request to send (RTS) frame if the STA has the SU-MIMO capability, or the advertisement frame may be an RTS frame or a DMG itself allowed to send (CTS) frame if the STA has the MU-MIMO capability. One or more directional multiple gigabit (DMG) antennas may be configured based on the advertisement frame. One or more sounding symbols may be transmitted, and feedback may be provided based on the sounding symbols. The HBF signal may be transmitted based on the probe symbol (s) and/or feedback. 公开了用于基于正交频分复用(OFDM)和/或单载波(SC)的多输入多输出(MIM