Cell sync Offset was not applied correctly in all case

targets/RT/USER/lte-ue.c

@@ -449,7 +449,15 @@ static void *UE_thread_synch(void *arg)
 	  // rerun with new cell parameters and frequency-offset
 	  for (i=0;i<openair0_cfg[UE->rf_map.card].rx_num_channels;i++) {
 	    openair0_cfg[UE->rf_map.card].rx_gain[UE->rf_map.chain+i] = UE->rx_total_gain_dB;//-USRP_GAIN_OFFSET;
-	    openair0_cfg[UE->rf_map.card].rx_freq[UE->rf_map.chain+i] -= UE->common_vars.freq_offset;
+	    LOG_I(PHY,"freq_offset %d\n",freq_offset);
+		if (freq_offset >= 0)
+	    {
+	        openair0_cfg[UE->rf_map.card].rx_freq[UE->rf_map.chain+i] += UE->common_vars.freq_offset;
+	    }
+	    else
+	    {
+	        openair0_cfg[UE->rf_map.card].rx_freq[UE->rf_map.chain+i] -= UE->common_vars.freq_offset;
+	    }
 	    openair0_cfg[UE->rf_map.card].tx_freq[UE->rf_map.chain+i] =  openair0_cfg[UE->rf_map.card].rx_freq[UE->rf_map.chain+i]+uplink_frequency_offset[CC_id][i];
 	    downlink_frequency[CC_id][i] = openair0_cfg[CC_id].rx_freq[i];
 	    freq_offset=0;