/* process an already parsed measurement report and decide if we want to
* attempt a handover */
static int process_meas_rep(struct gsm_meas_rep *mr)
{
struct gsm_network *net = mr->lchan->ts->trx->bts->network;
int av_rxlev;
/* we currently only do handover for TCH channels */
switch (mr->lchan->type) {
case GSM_LCHAN_TCH_F:
case GSM_LCHAN_TCH_H:
break;
default:
return 0;
}
/* parse actual neighbor cell info */
if (mr->num_cell > 0 && mr->num_cell < 7)
process_meas_neigh(mr);
av_rxlev = get_meas_rep_avg(mr->lchan, MEAS_REP_DL_RXLEV_FULL,
net->handover.win_rxlev_avg);
/* Interference HO */
if (rxlev2dbm(av_rxlev) > -85 &&
meas_rep_n_out_of_m_be(mr->lchan, MEAS_REP_DL_RXQUAL_FULL,
3, 4, 5))
return attempt_handover(mr);
/* Bad Quality */
if (meas_rep_n_out_of_m_be(mr->lchan, MEAS_REP_DL_RXQUAL_FULL,
3, 4, 5))
return attempt_handover(mr);
/* Low Level */
if (rxlev2dbm(av_rxlev) <= -110)
return attempt_handover(mr);
/* Distance */
if (mr->ms_l1.ta > net->handover.max_distance)
return attempt_handover(mr);
/* Power Budget AKA Better Cell */
if ((mr->nr % net->handover.pwr_interval) == 0)
return attempt_handover(mr);
return 0;
}
static int _insert_ud(struct meas_db_state *st, unsigned long meas_id, int dtx,
int uplink, const struct gsm_meas_rep_unidir *ud)
{
unsigned long rowid;
SCK_OK(st->db, sqlite3_bind_int(st->stmt_ins_ud, 1, meas_id));
SCK_OK(st->db, sqlite3_bind_int(st->stmt_ins_ud, 2,
rxlev2dbm(ud->full.rx_lev)));
SCK_OK(st->db, sqlite3_bind_int(st->stmt_ins_ud, 3,
rxlev2dbm(ud->sub.rx_lev)));
SCK_OK(st->db, sqlite3_bind_int(st->stmt_ins_ud, 4, ud->full.rx_qual));
SCK_OK(st->db, sqlite3_bind_int(st->stmt_ins_ud, 5, ud->sub.rx_qual));
SCK_OK(st->db, sqlite3_bind_int(st->stmt_ins_ud, 6, dtx));
SCK_OK(st->db, sqlite3_bind_int(st->stmt_ins_ud, 7, uplink));
SCK_DONE(st->db, sqlite3_step(st->stmt_ins_ud));
SCK_OK(st->db, sqlite3_reset(st->stmt_ins_ud));
return sqlite3_last_insert_rowid(st->db);
err_io:
exit(1);
}
