Closed form singular value decomposition

摘要

The subject matter disclosed herein provides methods and apparatus for determining a singular value decomposition, providing feedback from a client station to a base station, and closed loop operation of a wireless system implementing multiple-input multiple-output (MIMO). The method may include determining one or more singular vectors using a closed form singular value decomposition. The one or more determined singular vectors may be provided to a precoder at the base station as feedback. The method may include aligning a phase of one or more singular vectors. The method may also include determining, at a client station, a plurality of singular vectors for channels used in a MIMO transmission from a base station to a client station. The client station may provide an indication to the base station regarding whether to use a singular value decomposition or a uniform channel decomposition. Related systems, apparatus, methods, and/or articles are also described.

主权项

1. A method for use in a client station, the method comprising:
receiving a plurality of signals transmitted by a base station implementing a plurality of antennas configured for a multiple-input and multiple-output transmission; determining, using a closed form singular value decomposition, one or more singular vectors; aligning a phase of each of the one or more singular vectors to generate one or more aligned singular vectors; averaging the aligned singular vectors to generate an average singular vector; and providing, as feedback, the average singular vector to a precoder at the base station.