SU-MIMO, MU-MIMO and beamforming operations using synchronized WLAN devices

摘要

An apparatus for wireless communication includes a plurality of antennas, a master baseband integrated circuit (BBIC) and a slave BBIC. The antennas are configured to communicate a Multiple-Input Multiple-Output (MIMO) signal. The master BBIC is configured to process a first component of the MIMO signal that is communicated via a first subset of the antennas. The slave BBIC is configured to process a second component of the MIMO signal that is communicated via a second subset of the antennas. The master BBIC is further configured to control the slave BBIC so as to jointly communicate the MIMO signal, based on the first and second components, via the entire plurality of the antennas.

主权项

1. An apparatus for wireless communication, comprising:
a plurality of antennas, configured to communicate a Multiple-Input Multiple-Output (MIMO) signal; a master baseband integrated circuit (BBIC), which is configured to process a first component of the MIMO signal that is communicated via a first subset of the plurality of the antennas; and a slave BBIC, which is configured to process a second component of the MIMO signal that is communicated via a second subset of the plurality of the antennas, wherein the master BBIC is further configured to control the slave BBIC so as to jointly communicate the MIMO signal, based on the first and second components, via the entire plurality of the antennas, and wherein the master BBIC and the slave BBIC are configured to jointly transmit the MIMO signal using a beamforming or spatial expansion matrix that spans the entire plurality of the antennas, by:
applying a first part of the beamforming or spatial expansion matrix to the first component of the MIMO signal using the master BBIC; andapplying a second part of the beamforming or spatial expansion matrix to the second component of the MIMO signal using the slave BBIC.