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feature/rank8-pdsch
openairinterface5g/openair1/PHY/CODING/nrLDPC_encoder/ldpc_generate_coefficient.c
T
Robert Schmidt 8107939f08 Change OAI license to CSSL v1.0 (and others) 
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
  scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly

For automated changes based on OAI PL v1.1:

    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
    perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml

The rest (cmake, files with missing license, cmake) manually.
2026-03-27 16:36:37 +01:00

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/*
* SPDX-License-Identifier: LicenseRef-CSSL-1.0
*/
/*!
* \brief Generates the optimized LDPC encoder
*/
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "Gen_shift_value.h"
#include "assertions.h"
static inline short *choose_generator_matrix(short BG,short Zc)
{
short *Gen_shift_values = NULL;
if (BG==1)
{
switch (Zc)
{
case 2: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_2;
break;
case 3: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_3;
break;
case 4: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_4;
break;
case 5: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_5;
break;
case 6: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_6;
break;
case 7: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_7;
break;
case 8: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_8;
break;
case 9: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_9;
break;
case 10: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_10;
break;
case 11: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_11;
break;
case 12: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_12;
break;
case 13: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_13;
break;
case 14: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_14;
break;
case 15: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_15;
break;
case 16: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_16;
break;
case 18: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_18;
break;
case 20: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_20;
break;
case 22: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_22;
break;
case 24: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_24;
break;
case 26: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_26;
break;
case 28: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_28;
break;
case 30: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_30;
break;
case 32: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_32;
break;
case 36: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_36;
break;
case 40: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_40;
break;
case 44: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_44;
break;
case 48: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_48;
break;
case 52: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_52;
break;
case 56: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_56;
break;
case 60: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_60;
break;
case 64: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_64;
break;
case 72: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_72;
break;
case 80: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_80;
break;
case 88: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_88;
break;
case 96: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_96;
break;
case 104: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_104;
break;
case 112: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_112;
break;
case 120: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_120;
break;
case 128: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_128;
break;
case 144: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_144;
break;
case 160: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_160;
break;
case 176: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_176;
break;
case 192: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_192;
break;
case 208: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_208;
break;
case 224: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_224;
break;
case 240: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_240;
break;
case 256: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_256;
break;
case 288: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_288;
break;
case 320: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_320;
break;
case 352: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_352;
break;
case 384: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_384;
break;
}
}
else if (BG==2)
{
switch (Zc)
{
case 2: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_2;
break;
case 3: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_3;
break;
case 4: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_4;
break;
case 5: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_5;
break;
case 6: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_6;
break;
case 7: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_7;
break;
case 8: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_8;
break;
case 9: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_9;
break;
case 10: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_10;
break;
case 11: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_11;
break;
case 12: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_12;
break;
case 13: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_13;
break;
case 14: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_14;
break;
case 15: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_15;
break;
case 16: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_16;
break;
case 18: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_18;
break;
case 20: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_20;
break;
case 22: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_22;
break;
case 24: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_24;
break;
case 26: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_26;
break;
case 28: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_28;
break;
case 30: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_30;
break;
case 32: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_32;
break;
case 36: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_36;
break;
case 40: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_40;
break;
case 44: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_44;
break;
case 48: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_48;
break;
case 52: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_52;
break;
case 56: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_56;
break;
case 60: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_60;
break;
case 64: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_64;
break;
case 72: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_72;
break;
case 80: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_80;
break;
case 88: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_88;
break;
case 96: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_96;
break;
case 104: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_104;
break;
case 112: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_112;
break;
case 120: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_120;
break;
case 128: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_128;
break;
case 144: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_144;
break;
case 160: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_160;
break;
case 176: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_176;
break;
case 192: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_192;
break;
case 208: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_208;
break;
case 224: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_224;
break;
case 240: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_240;
break;
case 256: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_256;
break;
case 288: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_288;
break;
case 320: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_320;
break;
case 352: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_352;
break;
case 384: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_384;
break;
}
}
return Gen_shift_values;
}
static inline int encode_parity_check_part_orig(unsigned char *c,unsigned char *d, short BG,short Zc,short Kb,short block_length)
{
short *Gen_shift_values=choose_generator_matrix(BG,Zc);
short *no_shift_values, *pointer_shift_values;
int no_punctured_columns;
short nrows,ncols,rate=3;
int i1,i2,i3,i4,i5,temp_prime;
unsigned char channel_temp,temp;
if (BG==1)
{
no_shift_values=(short *) no_shift_values_BG1;
pointer_shift_values=(short *) pointer_shift_values_BG1;
nrows=46; //parity check bits
ncols=22; //info bits
rate=3;
}
else if (BG==2)
{
no_shift_values=(short *) no_shift_values_BG2;
pointer_shift_values=(short *) pointer_shift_values_BG2;
nrows=42; //parity check bits
ncols=10; //info bits
rate=5;
}
else {
printf("problem with BG: is %d\n", BG);
return(-1);
}
no_punctured_columns=(int)((nrows-2)*Zc+block_length-block_length*rate)/Zc;
//printf("no_punctured_columns = %d\n",no_punctured_columns);
for (i2=0; i2 < Zc; i2++)
{
//t=Kb*Zc+i2;
//rotate matrix here
for (i5=0; i5 < Kb; i5++)
{
temp = c[i5*Zc];
memmove(&c[i5*Zc], &c[i5*Zc+1], (Zc-1)*sizeof(unsigned char));
c[i5*Zc+Zc-1] = temp;
}
// calculate each row in base graph
for (i1=0; i1 < nrows-no_punctured_columns; i1++)
{
channel_temp=0;
for (i3=0; i3 < Kb; i3++)
{
temp_prime=i1 * ncols + i3;
for (i4=0; i4 < no_shift_values[temp_prime]; i4++)
{
channel_temp = channel_temp ^ c[ i3*Zc + Gen_shift_values[ pointer_shift_values[temp_prime]+i4 ] ];
}
}
d[i2+i1*Zc]=channel_temp;
//channel_input[t+i1*Zc]=channel_temp;
}
}
return(0);
}
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