Data transmission using hierarchical modulation

摘要

The device (10) has a modulation unit (2) modulating data in a hierarchical manner using multiple types of modulation techniques. A transmission unit (3) transmits the hierarchically modulated data. A generating unit (1) provides a sampling pattern for the modulation techniques. The pattern defines a sampling space for quantizing the data in accordance with the modulation techniques. Independent claims are also included for the following: (a) a demodulation device (b) a modulation method (c) a demodulation method.