Multi-channel multiple-input multiple-output beamforming training in millimeter wave systems

Systems, methods, and devices for beamforming (BF) training are disclosed. In some examples, a receiver is configured to receive sector scan (SSW) training frames from an initiator device, each SSW training frame indicating an antenna sector of the initiator device. A transmitter is configured to transmit a sector scan (SSW) training frame to an initiator device, the SSW training frame indicating a best received antenna sector of the initiator device. The receiver receives a Sector Scanning Feedback (SSW FB) frame from the initiator device, and if the SSW FB frame is optimally received by an antenna not corresponding to the optimally received antenna sector of the initiator device, the transmitter transmits a Sector Scanning Acknowledgement (SSW ACK) frame to the initiator device, the SSW ACK frame indicating an antenna sector of the initiator device that is different than the antenna sector indicated by the SSW FB frame. 公开了用于波束成形(BF)训练的系统、方法和设备。在一些示例中，接收机被配置为从发起方设备接收扇区扫描(SSW)训练帧，每个SSW训练帧指示发起方设备的天线扇区。发射机被配置为