Integrated multi-datastream transmission technology

摘要

The present invention is related to integrated multi-datastream transmission technology, more particularly, to integrated multi-datastream modulation technology. According to one aspect of the present invention, there is provided a modulation equipment (10), including: a symbol integration means (101), configured to combine a first bit stream with a second bit stream to form a symbol to be modulated; a symbol mapping means (102), configured to map the symbol to be modulated into a QAM modulation symbol according to a set of predetermined mapping rules; wherein, in the set of predetermined mapping rules, multiple constellations corresponding to any first bit stream are located in at least two quadrants in the constellation diagram, while multiple constellations corresponding to any second bit stream are located in at least two quadrants in the constellation diagram. The integrated transmission of a first service data and a second service data (e.g., unicast service data and MBMS data) may be supported and has a better performance than the prior art especially in single cell scenario by using the method, equipment and device in the present invention.

主权项

1. A modulation equipment, comprising:
a symbol integrator, configured to combine at least one bit from a first bit stream with at least one bit from a second bit stream to form a symbol to be modulated; a symbol mapper, configured to map the symbol to be modulated to a constellation of a Quadrature Amplitude Modulation (QAM) map according to a set of predetermined mapping rules; wherein, in the set of predetermined mapping rules, multiple constellations corresponding to any particular bit value or particular set of bit values of the first bit stream are located in at least two quadrants in the constellation map and multiple constellations corresponding to any particular bit value or particular set of bit values of the second bit stream are located in at least two quadrants in the constellation map and wherein, in the set of predetermined mapping rules, constellation distribution patterns corresponding to the first bit stream and constellation distribution patterns corresponding to the second bit stream are symmetrical relative to line y=x or line y=−x, wherein, x and y represent the coordinate axis in the complex plane of the constellation map.