Patent ID: 8605751
Filing Date: 2013-12-10
Classification: H04L

Abstract:
1. A method for mapping transmission data to symbols in a symbol mapping apparatus, the method comprising: outputting transmission bits by encoding the transmission data; mapping at least part of the transmission bits to symbols in accordance with a first mapping scheme for first transmission; and mapping at least part of the transmission bits to symbols in accordance with a second mapping scheme for second transmission, the second mapping scheme being different from the first mapping scheme, wherein an input bit is mapped to a first bit of a symbol in accordance with the first mapping scheme and mapped to a second bit of the symbol in accordance with the second mapping scheme, wherein the second bit has relatively lower reliability within a symbol when the first bit has relatively higher reliability within the symbol, and wherein bits transmitted in the second transmission include a bit mapped in accordance with the first mapping scheme and a bit mapped in accordance with the second mapping scheme.