Uplink training for MIMO implicit beamforming

摘要

In a method for beamforming in a multiple input multiple output (MIMO) communication system, a data unit is received from a communication device via a MIMO communication channel, and it is determined whether the data unit satisfies one or more selection criteria. Further, when it is determined that the data unit satisfies the one or more selection criteria, the data unit is selected to be used in developing a steering matrix for transmitting data units to the communication device.

主权项

1. A method for beamforming in a multiple input multiple output (MIMO) communication system, the method comprising:
receiving, by a first communication device, a data unit from a second communication device via a reverse MIMO communication channel; determining, by the first communication device, whether the data unit satisfies one or more implicit beamforming selection criteria; when it is determined that the data unit satisfies the one or more implicit beamforming selection criteria, selecting, by the first communication device, the data unit to be used in developing a steering matrix for transmitting data units from the first communication device to the second communication device via a forward MIMO communication channel; and developing, at the first communication device, the steering matrix for transmitting data units from the first communication device to the second communication device, wherein developing the steering matrix includes using channel estimate information determined from the selected data unit.