diff options
| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-11-25 14:42:08 +0100 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-11-25 14:50:04 +0100 |
| commit | 90b689b577e65a49e3bd0a8f2a9a8cdf2ca2955c (patch) | |
| tree | 32275697b99dcc5ee92ed5657eb64b08f83bf83c /src/osmo-bsc | |
| parent | 88f3c0520295ae014a0e750fb49e09e70799be36 (diff) | |
Disable C/I based MS Power Control Loop by default
osmo-trx-uhd with a B200 has proven to provide bad (lower than usually
considered good) C/I values due to high noise (even with band filters in
place). Hence, default thresholds (gathered from literature on the topic)
are too high and end up in bad algorithm output decisions.
Furthermore, most users of Osmocom don't use it in densely populated
areas, hence RXLEV based algorithm used when C/I based one is disabled
is good enough.
Let's disable C/I based one by default, and let advanced users which
specific needs to enable and confiure thresholds specifically for their
needs (hardware, cell surrounding conditions, etc.).
Related: SYS#4917
Change-Id: If1a73c60695379bcfcd0f44c6ec6dd659563e279
Diffstat (limited to 'src/osmo-bsc')
| -rw-r--r-- | src/osmo-bsc/gsm_data.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/osmo-bsc/gsm_data.c b/src/osmo-bsc/gsm_data.c index 988d70efa..38d8a7c63 100644 --- a/src/osmo-bsc/gsm_data.c +++ b/src/osmo-bsc/gsm_data.c @@ -1200,7 +1200,7 @@ const struct gsm_power_ctrl_params power_ctrl_params_def = { * above the target. */ .ci_fr_meas = { /* FR: Target C/I = 15 dB, Soft blocking threshold = 10 dB */ - .enabled = true, + .enabled = false, .lower_thresh = 13, .upper_thresh = 17, @@ -1222,7 +1222,7 @@ const struct gsm_power_ctrl_params power_ctrl_params_def = { .h_reqt = 6, /* TODO: investigate a reasonable default value */ }, .ci_hr_meas = { /* HR: Target C/I = 18 dB, Soft blocking threshold = 13 dB */ - .enabled = true, + .enabled = false, .lower_thresh = 16, .upper_thresh = 21, @@ -1244,7 +1244,7 @@ const struct gsm_power_ctrl_params power_ctrl_params_def = { .h_reqt = 6, /* TODO: investigate a reasonable default value */ }, .ci_amr_fr_meas = { /* AMR-FR: Target C/I = 9 dB, Soft blocking threshold = 4 dB */ - .enabled = true, + .enabled = false, .lower_thresh = 7, .upper_thresh = 11, @@ -1266,7 +1266,7 @@ const struct gsm_power_ctrl_params power_ctrl_params_def = { .h_reqt = 6, /* TODO: investigate a reasonable default value */ }, .ci_amr_hr_meas = { /* AMR-HR: Target C/I = 15 dB, Soft blocking threshold = 10 dB */ - .enabled = true, + .enabled = false, .lower_thresh = 13, .upper_thresh = 17, @@ -1288,7 +1288,7 @@ const struct gsm_power_ctrl_params power_ctrl_params_def = { .h_reqt = 6, /* TODO: investigate a reasonable default value */ }, .ci_sdcch_meas = { /* SDCCH: Target C/I = 14 dB, Soft blocking threshold = 9 dB */ - .enabled = true, + .enabled = false, .lower_thresh = 12, .upper_thresh = 16, @@ -1310,7 +1310,7 @@ const struct gsm_power_ctrl_params power_ctrl_params_def = { .h_reqt = 6, /* TODO: investigate a reasonable default value */ }, .ci_gprs_meas = { /* GPRS: Target C/I = 20 dB, Soft blocking threshold = 15 dB */ - .enabled = true, + .enabled = false, .lower_thresh = 18, .upper_thresh = 24, |