Apparatus and Method to Configure Antenna Beam Width

摘要

Using High-beam and low-beam transmission signals that have different antenna tilts, different beam-widths, and different polarizations than one another may provide performance advantages in wireless networks. The high-beam transmission signal and the low-beam transmission signal may have orthogonal polarizations. For example, the high-beam transmission signal and the low-beam transmission signal may be linearly polarized signals having different electromagnetic field (E-field) polarization angles with respect to the y-axis, e.g., +/− forty-five degrees with respect to a vertically polarized wave. As another example, the high-beam transmission signal may be a vertically polarized signal, and the low-beam transmission signal may be a horizontally polarized signal, or vice-versa. In addition to having orthogonal polarizations, the low-beam transmission signal may have a greater antenna beam down-tilt angle, and a wider beam-width than the high-beam transmission signal.

主权项

1. A method comprising:
generating two signals; obtaining a low-beam signal and a high-beam signal by applying different beamforming weight vectors to the two signals; and transmitting, by an access point, the low-beam signal and the high-beam signal over different polarizations of an antenna array to emit a low-beam transmission signal and a high-beam transmission signal, wherein the high-beam transmission signal has a different antenna tilt, a different beam-width, and a different polarization than the low-beam transmission signal.