4*sym_in(idx_8);
0045 
0046 idx_1 = (abs(sym_in) &gt; 14);
0047 idx_2 = (abs(sym_in) &lt;= 14) &amp; (abs(sym_in) &gt; 12);
0048 idx_3 = (abs(sym_in) &lt;= 12) &amp; (abs(sym_in) &gt; 10);
0049 idx_4 = (abs(sym_in) &lt;= 10) &amp; (abs(sym_in) &gt; 6);
0050 idx_5 = (abs(sym_in) &lt;= 6) &amp; (abs(sym_in) &gt; 4);
0051 idx_6 = (abs(sym_in) &lt;= 4) &amp; (abs(sym_in) &gt; 2);
0052 idx_7 = (abs(sym_in) &lt;= 2);
0053 
0054 llr_out(2, idx_1) = -16*abs(sym_in(idx_1)) + 176;
0055 llr_out(2, idx_2) = -12*abs(sym