Patent ID: 9118362
Filing Date: 2015-08-25
Classification: H04B,H04L

Abstract:
1. A method for selecting a transmission mode under a multi-input multi-output (MIMO) architecture based on a scheduling number, used in a base station transmitting/receiving data with a plurality of client ends through a plurality of antennas by the MIMO architecture, comprising the steps of: receiving a plurality of channel state information from the client ends, respectively; determining a minimum equivalent diversity signal to noise ratio (SNR) in a spatial diversity (SD) mode corresponding to the client ends, and determining a minimum equivalent multiplexing SNR in a spatial multiplexing (SM) mode corresponding to the client ends, according to the channel state information; selecting a diversity modulation coding in the SD mode according to the minimum equivalent diversity SNR, and selecting a multiplexing modulation coding in the SM mode according to the minimum equivalent multiplexing SNR; calculating a diversity spectral efficiency in the SD mode and a multiplexing spectral efficiency in the SM mode; and selecting the transmission mode between the SD mode and the SM mode according to a diversity scheduling number corresponding to the diversity modulation coding a multiplexing scheduling number corresponding to the multiplexing modulation coding, the diversity spectral efficiency and the multiplexing spectral efficiency to transmit data from the base station in the selected transmission mode.