Patent ID: 7404138
Filing Date: 2008-07-22
Classification: H03M,H04B,H04L

Abstract:
1. An apparatus for encoding 10 consecutive input bits indicating a TFCI (Transport Format Combination Indicator) into a sequence of 48 symbols in an NB-TDD mobile communication system, the apparatus for encoding having at least an orthogonal sequence generator, a mask sequence generator, and adder, and a puncturer, the apparatus comprising: an orthogonal sequence generator for creating a plurality of biorthogonal sequences having a length of at least 2 a mask sequence generator for creating a plurality of mask sequences, and outputting a mask sequence selected from the mask sequences by second information bits of the TFCI; an adder for adding a biorthogonal sequence from the orthogonal sequence generator and a mask sequence from the mask sequence generator; and a puncturer for performing puncturing on sequences output from the adder so as to output the sequence of 48 symbols, wherein the puncturer performs puncturing according to one of following puncturing patterns: {0, 4, 8,13,16,20,27,31,34,38,41,44,50,54,57,61} {0, 4, 8,13,16,21,25,28,32,37,43,44,49,52,56,62} {0, 4, 8,13,16,21,25,31,32,37,43,44,49,52,56,61} {0, 4, 8,13,18,21,25,30,35,36,40,46,50,53,57,62} {0, 4, 8,13,18,21,25,30,35,37,40,47,50,53,57,62} {0, 4, 8,13,19,22,27,30,33,36,41,44,49,55,58,61} {0, 4, 8,13,19,22,27,30,33,36,41,44,50,52,56,63} {0, 4, 8,13,19,22,27,30,33,36,41,44,50,52,58,61} {0, 4, 8,13,16,20,27,31,34,38,41,44,50,54,57,61}.