Patent ID: 7286845
Filing Date: 2007-10-23
Classification: H04W

Abstract:
1. A method for scheduling weighted transmissions from two or more transmit antennas of a base station to each of two or more mobile stations in a closed-loop transmit diversity system, the method comprising steps of: determining the quantity of power available for data transmission from each transmit antenna; determining each combination of set of mobile stations that may be served simultaneously by a base station; for each combination set, computing unused power Δ with reference to the quantity of power available for data transmission from each transmit antenna, and the power required to transmit data from each transmit antenna to each respective mobile station in the said set; for each of said combination sets of mobile stations, computing a global cost from a global cost function with reference to one or more variables, including said unused power Δ; determining the combination set of mobile stations that has a substantially minimum global cost; and scheduling the transmission of data from each transmit antenna to the mobile stations which constitute said combination set of mobile stations that has a substantially minimum global cost.