fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bts/+/39831?usp=email )

Change subject: power_control: always feed input values to do_avg_algo() ......................................................................

power_control: always feed input values to do_avg_algo()

The purpose of the power control interval (P_CON_INTERVAL) is to temporarily suspend the decision-making process of the MS/BS power control algorithm, allowing time to observe the effects of a previous adjustment.

However, input value (RxLev/RxQual) averaging must continue uninterrupted, regardless of the power control interval. Otherwise we're simply loosing measurement samples.

Change-Id: I2ccad1cb0ebbfcce64a93bc81b66db37b1399769 --- M src/common/power_control.c 1 file changed, 13 insertions(+), 9 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/31/39831/1

diff --git a/src/common/power_control.c b/src/common/power_control.c index 7f98a41..45d8969 100644 --- a/src/common/power_control.c +++ b/src/common/power_control.c @@ -206,6 +206,12 @@ if (params == NULL) return 0;

+ /* Average the input RxLev/RxQual samples (if needed). Do this before + * the loop suspension logic to keep the pre-processing state updated. */ + ci_meas = lchan_get_ci_thresholds(lchan); + ul_lqual_cb_avg = do_avg_algo(ci_meas, &state->ci_meas_proc, ul_lqual_cb); + rxlev_avg = do_avg_algo(&params->rxlev_meas, &state->rxlev_meas_proc, dbm2rxlev(ul_rssi_dbm)); + /* Shall we skip current block based on configured interval? */ if (ctrl_interval_skip_block(params, state)) return 0; @@ -225,15 +231,10 @@ return 0; }

- ci_meas = lchan_get_ci_thresholds(lchan); - /* Is C/I based algo enabled by config? * FIXME: this can later be generalized when properly implementing P & N counting. */ ci_on = ci_meas->lower_cmp_n && ci_meas->upper_cmp_n;

- ul_lqual_cb_avg = do_avg_algo(ci_meas, &state->ci_meas_proc, ul_lqual_cb); - rxlev_avg = do_avg_algo(&params->rxlev_meas, &state->rxlev_meas_proc, dbm2rxlev(ul_rssi_dbm)); - /* If computed C/I is enabled and out of acceptable thresholds: */ if (ci_on && ul_lqual_cb_avg < ci_meas->lower_thresh * 10) { new_dbm = ms_dbm + params->inc_step_size_db; @@ -334,10 +335,6 @@ lchan->tch.dtx.dl_active ? "enabled" : "disabled", lchan->tch.dtx.dl_active ? "SUB" : "FULL");

- /* Shall we skip current block based on configured interval? */ - if (ctrl_interval_skip_block(params, state)) - return 0; - /* If DTx is active on Downlink, use the '-SUB' */ if (lchan->tch.dtx.dl_active) { rxqual = mr->rxqual_sub; @@ -347,8 +344,15 @@ rxlev = mr->rxlev_full; }

+ /* Average the input RxLev/RxQual samples (if needed). Do this before + * the loop suspension logic to keep the pre-processing state updated. */ rxlev_avg = do_avg_algo(&params->rxlev_meas, &state->rxlev_meas_proc, rxlev); rxqual_avg = do_avg_algo(&params->rxqual_meas, &state->rxqual_meas_proc, rxqual); + + /* Shall we skip current block based on configured interval? */ + if (ctrl_interval_skip_block(params, state)) + return 0; + /* If RxQual > L_RXQUAL_XX_P, try to increase Tx power */ if (rxqual_avg > params->rxqual_meas.lower_thresh) { /* Increase Tx power by reducing Tx attenuation */