Apparatus and method for transmitting and receiving polarized signals

摘要

Provided is an apparatus and method for transmitting and receiving polarized signals. Wireless communication with multiple polarized signals may experience greater attenuation on one polarized signal than another polarized signal. The polarized signal that is more attenuated limits overall throughput for the wireless communication. According to an embodiment of the invention, signals undergo rotation processing with a transformation involving a rotation matrix prior to transmission. Each polarized signal that is transmitted is based on a different weighted combination of the signals. The rotation processing can be performed with an objective that signals recovered at a receiver have comparable signal quality, which can increase overall throughput. In some implementations, the rotation processing is performed based on feedback to dynamically adjust the rotation processing.

主权项

1. An apparatus comprising:
a signal processor configured to process a first signal and a second signal with a rotation matrix to produce a first processed signal and a second processed signal such that each of the first and second processed signals is a respective different weighted combination of the first and second signals; and a transmitter configured to wirelessly transmit the first processed signal with a first polarization, and to wirelessly transmit the second processed signal with a second polarization that is substantially orthogonal to the first polarization; wherein the rotation matrix is a real matrix used to rotate the first signal and the second signal.