Apparatus and method for generating block code in a mobile communication system

An apparatus for encoding 7 input bits into 24 symbols in a mobile communication system, comprising:

• an orthogonal sequence generator for creating first sequences of length 24 by performing puncturing on basis orthogonal codes of length 32 according to a predefined puncturing pattern;
• a mask sequence generator for creating second sequences of length 24 by performing puncturing on basis mask sequences of length 32 according to the predefined puncturing pattern;
• a plurality of multipliers for multiplying the first sequences and the second sequences by associated input bits;
• and
• an adder for outputting the 24 symbols by adding output sequences of the multipliers;
• wherein the predefined puncturing pattern is selected from the group of puncturing patterns given below,
• {0, 1, 3, 7, 10, 13, 15, 18}
• {0, 1, 3, 7, 10, 13, 15, 25}
• {0, 4, 13, 18, 20, 25, 29, 31}
• {0, 1, 3, 7, 10, 11, 13, 16}
• {3, 10, 11, 13, 15, 26, 31}.

An apparatus for encoding 7 input bits into 24 symbols in a mobile communication system, comprising:

• a (32, 7) Reed-Muller encoder for encoding 7 input bits into 32 symbols using Walsh codes of length 32 and masks of length 32;
• and
• a puncturer for puncturing 8 symbols from the 32 symbols according to a predefined puncturing pattern, and outputting 24 non-punctured symbols;
• wherein the predefined puncturing pattern is selected from the group of puncturing patterns given below,
• {0, 1, 3, 7, 10, 13, 15, 18}
• {0, 1, 3, 7, 10, 13, 15, 25}
• {0, 4, 13, 18, 20, 25, 29, 31}
• {0, 1, 3, 7, 10, 11, 13, 16}
• {0, 3, 10, 11, 13, 15, 26, 31}

An apparatus for encoding 7 input bits into 24 symbols in a mobile communication system, comprising:

• a (24, 7) encoder for encoding 7 input bits into 24 symbols, using (i) Walsh codes of length 24 obtained by performing puncturing on Walsh codes of length 32 according to a predefined puncturing pattern and (ii) masks of length 24 obtained by performing puncturing on masks of length 32 according to the predefined puncturing pattern;
• wherein the predefined puncturing pattern is selected from the group of puncturing patterns given below,
• {0, 1, 3, 7, 10, 13, 15, 18}
• {0, 1, 3, 7, 10, 13, 15, 25}
• {0, 4, 13, 18, 20, 25, 29, 31}
• {0, 1, 3, 7, 10, 11, 13, 16}
• {0, 3, 10, 11, 13, 15, 26, 31}.

A method for encoding 7 input bits into 24 symbols in a mobile communication system, comprising the steps of:

• encoding 7 input bits into 32 symbols using a Reed-Muller code;
• and
• puncturing 8 symbols from the 32 symbols according to a predefined puncturing pattern, and outputting 24 symbols;
• wherein the predefined puncturing pattern is selected from the group of
• puncturing patterns given below,
• {0, 1, 3, 7, 10, 13, 15, 18}
• {0, 1, 3, 7, 10, 13, 15, 25}
• {0, 4, 13, 18, 20, 25, 29, 31}
• {0, 1, 3, 7, 10, 11, 13, 16}
• {0, 3, 10, 11, 13, 15, 26, 31}.

A method for encoding 7 input bits into 24 symbols in a mobile communication system, comprising the steps of:

• creating first sequences of length 24 by performing puncturing on basis orthogonal codes of length 32 according to a predefined puncturing pattern;
• creating second sequences of length 24 by performing puncturing on basis mask sequences of length 32 according to the predefined puncturing pattern;
• multiplying the first sequences and the second sequences by associated input bits;
• and
• outputting the 24 symbols by adding the multiplied sequences;
• wherein the predefined puncturing pattern is selected from the group of puncturing patterns given below,
• {0, 1, 3, 7, 10, 13, 15, 18}
• {0, 1, 3, 7, 10, 13, 15, 25}
• {0, 4, 13, 18, 20, 25, 29, 31}
• {0, 1, 3, 7, 10, 11, 13, 16}
• {0, 3, 10, 11, 13, 15, 26, 31}.

A method for encoding 7 input bits into 24 symbols in a mobile communication system, comprising:

• outputting an orthogonal sequence selected among a plurality of orthogonal sequences of length 32 by first information bits of the input bits;
• outputting a mask sequence selected by second information bits of the input bits, among a plurality of mask sequences of length 32 created using a Gold sequence such that a minimum distance by the sum of the orthogonal sequences is equal to or larger than 12;
• outputting 32 symbols by adding the orthogonal sequence and the mask sequence;
• and
• puncturing 8 symbols from the 32 symbols according to a predefined puncturing pattern, and outputting 24 non-punctured symbol;
• wherein the predefined puncturing pattern is selected from the group of puncturing patterns given below,
• {0, 1, 3, 7, 10, 13, 15, 18}
• {0, 1, 3, 7, 10, 13, 15, 25}
• {0, 4, 13, 18, 20, 25, 29, 31}
• {0, 1, 3, 7, 10, 11, 13, 16}
• {0, 3, 10, 11, 13, 15, 26, 31}.