Commit de98c17e authored by Bilel's avatar Bilel

Merge branch 'bugfix-18' into 'develop1B'

[OAI-UE] fix for issue#18: Cell sync issue



See merge request !6
parents 68bcfd64 5e94d108
......@@ -102,7 +102,7 @@ int lte_est_freq_offset(int **dl_ch_estimates,
{
int ch_offset, omega, dl_ch_shift;
struct complex16 *omega_cpx;
struct complex16 omega_cpx;
double phase_offset;
int freq_offset_est;
unsigned char aa;
......@@ -142,9 +142,8 @@ int lte_est_freq_offset(int **dl_ch_estimates,
// printf("Computing freq_offset\n");
omega = dot_product(dl_ch,dl_ch_prev,(frame_parms->N_RB_DL/2 - 1)*12,dl_ch_shift);
//omega = dot_product(dl_ch,dl_ch_prev,frame_parms->ofdm_symbol_size,15);
omega_cpx = (struct complex16*) ω
// printf("omega (%d,%d)\n",omega_cpx->r,omega_cpx->i);
omega_cpx.r = ((struct complex16*) &omega)->r;
omega_cpx.i = ((struct complex16*) &omega)->i;
dl_ch = (int16_t *)&dl_ch_estimates[aa][(((frame_parms->N_RB_DL/2) + 1)*12) + ch_offset];
......@@ -155,10 +154,12 @@ int lte_est_freq_offset(int **dl_ch_estimates,
// calculate omega = angle(conj(dl_ch)*dl_ch_prev))
omega = dot_product(dl_ch,dl_ch_prev,((frame_parms->N_RB_DL/2) - 1)*12,dl_ch_shift);
omega_cpx->r += ((struct complex16*) &omega)->r;
omega_cpx->i += ((struct complex16*) &omega)->i;
omega_cpx.r += ((struct complex16*) &omega)->r;
omega_cpx.i += ((struct complex16*) &omega)->i;
// phase_offset += atan2((double)omega_cpx->i,(double)omega_cpx->r);
phase_offset += atan2((double)omega_cpx->i,(double)omega_cpx->r);
phase_offset += atan2((double)omega_cpx.i,(double)omega_cpx.r);
// LOG_I(PHY,"omega (%d,%d) -> %f\n",omega_cpx->r,omega_cpx->i,phase_offset);
}
......
......@@ -462,6 +462,13 @@ int initial_sync(PHY_VARS_UE *ue, runmode_t mode)
}
}
/* Consider this is a false detection if the offset is > 1000 Hz */
if( (abs(ue->common_vars.freq_offset) > 1000) && (ret == 0) )
{
ret=-1;
LOG_E(HW,"Ignore MIB with high freq offset [%d Hz] estimation \n",ue->common_vars.freq_offset);
}
if (ret==0) { // PBCH found so indicate sync to higher layers and configure frame parameters
//#ifdef DEBUG_INITIAL_SYNCH
......
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