Patent ID: 8374269
Filing Date: 2013-02-12
Classification: H04L

Abstract:
1. A data processing apparatus configured to map input data symbols to be communicated onto a predetermined number of sub-carrier signals of Orthogonal Frequency Division Multiplexed (OFDM) symbols, the predetermined number of sub-carrier signals being determined in accordance with an operating mode of a plurality of operating modes and the input data symbols including first sets of input data symbols and second sets of input data symbols, the data processing apparatus comprising: an interleaver configured to perform an odd interleaving process which interleaves the first sets of input data symbols on to the sub-carrier signals of first OFDM symbols and an even interleaving process which interleaves the second sets of input data symbols on to the sub-carrier signals of second OFDM symbols, the odd interleaving process including: the even interleaving process including: when the operating mode is a mode which includes half or less than half a number of sub-carrier signals than a total number of sub-carriers in the OFDM symbols for carrying the input data symbols that can be accommodated by the interleaver memory, the data processing apparatus is configured to interleave the input data symbols from both first and second sets in accordance with the odd interleaving process on to the first and second OFDM symbols.