| 摘要 |
A wireless communication system including receiving and base stations. The receiving station includes a detector that measures a downlink channel correlation matrix for multiple antennas of the base station, computes an antenna weight increment vector normal to a previous antenna weight vector rendering positive a directional derivative of total received power from the multiple antennas of the base station, and quantizes the antenna weight increment vector to produce a quantized antenna weight increment vector. The receiving station also includes a transmitter that sends the quantized antenna weight increment vector to the base station. The base station includes a beamformer selector that re-orthogonalizes the quantized antenna weight increment vector, and a weight vector modifier that calculates an antenna weight vector by adding an increment to the previous antenna weight vector proportional to the re-orthogonalized quantized antenna weight increment vector and renormalizes the antenna weight vector to unit length.
|
