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chore / simplify the code and add the comment

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- simplify the buffer alignment
  - add the comment for llr
  - clean unused variable
This commit is contained in:
Tsung Yu Chan
2023-09-25 12:48:28 +02:00
parent 0263b4a807
commit fc2432e93b
6 changed files with 38 additions and 43 deletions
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openair1/PHY/NR_ESTIMATION/nr_freq_equalization.c
+4 -7
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@@ -26,7 +26,7 @@
// Reference of openair1/PHY/LTE_ESTIMATION/freq_equalization.c
// This is 4096/(1:4096) in simde__m128i format
simde__m128i nr_inv_ch[4096];/* = {0, 4096/1, 4096/2, 4096/3, 4096/4...}*/
static simde__m128i nr_inv_ch[4096]; /* = {0, 4096/1, 4096/2, 4096/3, 4096/4...}*/
void nr_init_fde()
{
@@ -51,8 +51,7 @@ void nr_freq_equalization (NR_DL_FRAME_PARMS *frame_parms,
AssertFatal(Msc_RS <= frame_parms->N_RB_UL*12, "Msc_RS %d >= %d\n",
Msc_RS, frame_parms->N_RB_UL*12);
for (uint16_t re = 0; re < (Msc_RS >> 2); re++)
{
for (uint16_t re = 0; re < (Msc_RS >> 2); re++) {
int16_t amp = (*((int16_t*)&ul_ch_mag128[re]));
if (amp > 4095)
@@ -62,12 +61,10 @@ void nr_freq_equalization (NR_DL_FRAME_PARMS *frame_parms,
if (Qm == 4)
ul_ch_mag128[re] = simde_mm_set1_epi16(324); // this is 512*2/sqrt(10)
else if (Qm == 6)
{
else if (Qm == 6) {
ul_ch_mag128[re] = simde_mm_set1_epi16(316); // this is 512*4/sqrt(42)
ul_ch_magb128[re] = simde_mm_set1_epi16(158); // this is 512*2/sqrt(42)
}
else if(Qm != 2)
} else if(Qm != 2)
AssertFatal(1, "nr_freq_equalization(), Qm = %d, should be 2, 4 or 6. symbol=%d, Msc_RS=%d\n", Qm, symbol, Msc_RS);
}
}