To provide a modulation method, transmission method and transmitter circuit which can realize a wireless link for ultra-high transmission rates for the downlink to users.
In a method of modulating an input signal to obtain a desired intermediate signal, the intermediate signal is to be processed for transmission over a wireless link at a carrier frequency within a desired frequency band. The processing may include subjecting of the intermediate signal to a frequency multiplier operation that exhibits an ambiguous transfer function. In the modulation method, an input signal is provided, and a set of signal states applicable to the desired intermediate signal are generated so that a signal, outputted from the frequency multiplier operation, has a substantially unique relation with respect to the desired intermediate signal.
METZ CARSTEN
Nobuaki Kato
Kazuo
Okabe
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama