diff options
Diffstat (limited to 'src/osmo-bsc')
| -rw-r--r-- | src/osmo-bsc/handover_decision_2.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/osmo-bsc/handover_decision_2.c b/src/osmo-bsc/handover_decision_2.c index 7df8bb1fb..4e54368ca 100644 --- a/src/osmo-bsc/handover_decision_2.c +++ b/src/osmo-bsc/handover_decision_2.c @@ -1362,6 +1362,12 @@ static void on_measurement_report(struct gsm_meas_rep *mr) } } +static bool lchan_is_on_dynamic_ts(struct gsm_lchan *lchan) +{ + return lchan->ts->pchan_on_init == GSM_PCHAN_TCH_F_TCH_H_PDCH + || lchan->ts->pchan_on_init == GSM_PCHAN_TCH_F_PDCH; +} + /* Given two candidates, pick the one that should rather be moved during handover. * Return the better candidate in out-parameters best_cand and best_avg_db. */ @@ -1377,6 +1383,12 @@ static void pick_better_lchan_to_move(bool want_highest_db, if (!want_highest_db && (*best_avg_db_p > other_avg_db)) goto return_other; + /* The two lchans have identical ratings, prefer picking a dynamic timeslot: free PDCH and allow more timeslot + * type flexibility for further congestion resolution. If both are dynamic, it does not matter which one is + * picked. */ + if (lchan_is_on_dynamic_ts(other_cand->lchan)) + goto return_other; + /* keep the same candidate. */ return; |