SOUNDING FEEDBACK SCHEMES FOR VERY HIGH THROUGHPUT WIRELESS SYSTEMS

摘要

PROBLEM TO BE SOLVED: To provide unified sounding feedback for Single-User (SU) communication and Multi-User (MU) communication.SOLUTION: Sounding feedback is transmitted from a user station (STA). The feedback comprises a certain number of beamforming matrices and a certain number of singular values of a wireless channel associated with the STA. Further, the sounding feedback comprises a bit for indicating whether this feedback represents Single-User (SU) feedback or Multi-User (MU) feedback.