Feedback Apparatus, Feedback Method, Scheduling Apparatus, And Scheduling Method

摘要

A scheduling apparatus in a MIMO control station for switching between SU-MIMO mode and MU-MIMO mode receives feedback information from each of a plurality of MIMO terminals. The scheduling apparatus comprises a SU-MIMO selecting unit that selects a terminal that has a SU-MIMO optimal performance metric among all the terminals; a MU-MIMO selecting unit that groups the terminals into at least one set, and selects a set of terminals that have a MU-MIMO optimal performance metric; and a switching unit that compares the SU-MIMO optimal performance metric and the MU-MIMO optimal performance metric to switch between the SU-MIMO mode and the MU-MIMO mode.