1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
function [pun_pattern, tail_pattern] = UmtsPunPattern( framesize, code_bits_per_frame )
N = 3*framesize+12;
X_i = N/3;
% This is the combined pun_pattern and tail_pattern
total_pattern = zeros(3,X_i);
% don't puncture the systematic part
total_pattern(1,:) = ones(1,X_i);
% set up parameters
delta_N = code_bits_per_frame - N;
e_ini = X_i;
% puncture first parity stream
e_plus = 2*X_i;
e_minus = 2*abs( floor( delta_N/2 ) );
parity_1 = RateMatch( 1:X_i, X_i, e_ini, e_plus, e_minus );
total_pattern(2,parity_1) = ones( size(parity_1) );
% puncture second parity stream
e_plus = X_i;
e_minus = abs( ceil( delta_N/2 ) );
parity_2 = RateMatch( 1:X_i, X_i, e_ini, e_plus, e_minus );
total_pattern(3,parity_2) = ones( size(parity_2) );
% bit collection
pun_pattern(1,:) = ones(1,framesize);
pun_pattern(2,:) = total_pattern(2,1:framesize);
pun_pattern(3,:) = zeros(1,framesize);
pun_pattern(4,:) = total_pattern(3,1:framesize);
tail_pattern = reshape( total_pattern(:,framesize+1:X_i),4, 3 );
|
