Patent ID: 8270521
Filing Date: 2012-09-18
Classification: H04B,H04L,H04W

Abstract:
1. A transmitting apparatus comprising: a signal processing section that generates a first modulated signal by changing an amplitude of a modulated signal mapped using a first mapping pattern of a predetermined modulation scheme and generates a second modulated signal by changing an amplitude of another modulated signal by changing from a mapping pattern of the modulated signal mapped using the first mapping pattern to a second mapping pattern of the predetermined modulation scheme; and a plurality of antennas that transmit the first modulated signal and the second modulated signal in a same frequency band and at a same time, wherein: the second mapping pattern is selected from a plurality of mapping patterns rotating a phase of the first mapping pattern; the first mapping pattern and the second mapping pattern map a signal point on an IQ plane corresponding to a bit set which comprises a plurality of bits; the first mapping pattern maps a first bit set in the plurality of bits on the IQ plane as a first signal point; and the second mapping pattern maps the first bit set as a second signal point; the first bit set is all possible combinations of a plurality of bits.