Beam training method and device

A beam training method, comprising:

• receiving, by a receiving device, transmission beam training signals corresponding to transmission beams from a transmitting device using at least one reception beam;
• selecting, by the receiving device, at least one of the transmission beams corresponding to the transmission beam training signals, and feedings a transmission beam information report determined according to the selected at least one transmission beam back to the transmitting device;
• receiving, by the receiving device, reception beam training signals transmitted by the transmitting device using at least one reception beam;
• and
• determining, by the receiving device, at least one reception beam as a selected reception beam according to the reception beam training signals received.

A transmitting device, comprising:

• a processor, a memory, and a transceiver, wherein the transceiver is configured to receive and transmit data under the control of the processor, the memory is configured to store preset program, and the processor is configured to read and execute program in the memory:
• to determine transmission beams corresponding to transmission beam training signals;
• to transmit the transmission beam training signals to a receiving device using the transmission beams determined by the processor through the transceiver;
• to transmit reception beam training signals to the receiving device using transmission beams determined by the processor through the transceiver;
• and
• to determine the transmission beams corresponding to the reception beam training signals.

A receiving device, comprising:

• a processor, a memory, and a transceiver, wherein the transceiver is configured to receive and transmit data under the control of the processor, the memory is configured to store preset program, and the processor is configured to read and execute program in the memory:
• to receive transmission beam training signals corresponding to transmission beams from a transmitting device using at least one reception beam, and to receive reception beam training signals transmitted by the transmitting device using at least one reception beam, through a transceiver;
• to select at least one of the transmission beams corresponding to the transmission beam training signals, and to feed a transmission beam information report determined according to the selected first transmission beam back to the transmitting device through the transceiver;
• and
• to determine the at least one reception beam as a selected reception beam according to the reception beam training signals received using the at least one reception beam through the transceiver.