Patent ID: 8488714
Filing Date: 2013-07-16
Classification: H04L

Abstract:
1. A modulating method used when mapping modulation symbols obtained by modulating transmission information into resource elements that are physical channel units, generating transmission signals from a resource element group of a predetermined number of resource elements for which the mapping has been performed, and generating and transmitting transmission output signals by performing, for the transmission signals, signal processing based on predetermined communication schemes, said modulation method comprising: extracting, by a transmitter, transmission information from each of a plurality of data blocks that respectively transmit transmission information from independent information sources; generating, by the transmitter, a modulation symbol by performing modulation for the extracted transmission information using a predetermined modulation scheme for each data block; controlling, by the transmitter, transmission powers of the modulation symbols generated for the respective data blocks at transmission power ratios decided between the respective data blocks; selecting, by the transmitter, each of the plurality of data blocks one by one in a descending order of the transmission power ratio; performing, based on a value of the modulation symbol of a currently selected data block, decision of an allocation of the modulation symbol of the currently selected data block within one or more unused resource elements to which no modulation symbol of a data block that has been previously selected in the descending order is allocated; and mapping, by the transmitter the modulation symbols that have been obtained for the plurality of data blocks into the resource element group, based on the decided allocation.