Patent ID: 8503928

Claim:
A communications system, comprising: a plurality of communications devices, wherein a communications device, a trainer, generates at least one concatenated training sequence, transmits the at least one concatenated training sequence for performing one-to-many beamforming training during one training session, and receives one or more response messages describing corresponding channel characteristics from at least one of the rest of the plurality of communications devices, wherein the communications device, the trainer, generates the at least one concatenated training sequence by obtaining a training sequence, modulating the training sequence by using different schemes according to a predetermined rule so as to obtain a plurality of modulated training sequences, and concatenating the modulated training sequences to obtain the concatenated training sequence; and one or more of the rest of the plurality of communications devices, trainees, each receives the at least one concatenated training sequence, determines the channel characteristics between the trainer and a trainee according to the at least one received concatenated training sequence, embeds channel characteristics information to generate at least one of the response messages, and transmits the response message.