METHOD FOR MULTI-LAYERED CONSTELLATION MODULATION OBTAINING DIVERSITY GAIN AND APPARATUS THEREOF

摘要

A multi-layered modulation method for obtaining a diversity gain and a device therefor are provided to modulate symbols having correlation between symbols, thus band expansion or an additional antenna is not required while the diversity gain is obtained as system complexity, terminal size, and power consumption are reduced. Symbols consisting of plural bits are generated(300). Phases of the symbols are set according to the configured bits of the generated symbols(310). An energy level of a next generation symbol is set according to the configured bits of the current symbols(320). The step '310' of setting the phases comprises the steps as follows. A quadrant for transmitting the symbols is set according to predetermined bits among the configured bits of the generated symbols. The phases of the symbols are changed according to the rest of the bits except the predetermined bits on the set quadrant.