Patent ID: 8724524
Filing Date: 2014-05-13
Classification: H04W

Abstract:
1. A wireless communication method for transmitting data from a first wireless station having a concurrent transmission control function and a second wireless station having an interference reduction function to control an interference reduction mode selected from among a plurality of interference reduction modes, wherein the interference reduction function is a function to reduce a level of an interference signal by adjusting amplitudes and phases of input signals from a plurality of antennas, and synthesizing the input signals, each of the plurality of interference reduction modes uses a different adjustment method to adjust the amplitudes and the phases of the input signals, and the first wireless station judges, based on a carrier-to-interference ratio (CIR) of the second wireless station in at least one of the plurality of interference reduction modes, whether concurrent transmission between a signal from the first wireless station to the second wireless station and a signal of an interference station is available, and if judging that any particular interference reduction mode enables the concurrent transmission, transmits an interference reduction mode control signal to the second wireless station to instruct the second wireless station to operate in the particular interference reduction mode and transmits the signal to the second wireless station according to a timing that overlaps transmission of the signal that is being transmitted by the interference station.