From b9803d63664c37d78fba7343e5f6378dbd705f75 Mon Sep 17 00:00:00 2001 From: Jaroslava Fiedlerova Date: Thu, 19 Mar 2026 22:01:23 +0100 Subject: [PATCH] doc: Add description of ssPBCH_BlockPower into ORAN documentation --- doc/ORAN_FHI7.2_Tutorial.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/doc/ORAN_FHI7.2_Tutorial.md b/doc/ORAN_FHI7.2_Tutorial.md index a241fbb3f5..8296d9371a 100644 --- a/doc/ORAN_FHI7.2_Tutorial.md +++ b/doc/ORAN_FHI7.2_Tutorial.md @@ -980,6 +980,14 @@ Edit the sample OAI gNB configuration file and check following parameters: * `GNB_IPV4_ADDRESS_FOR_NGU` shall match your gNB N3 interface IP address * `prach_ConfigurationIndex` * `prach_msg1_FrequencyStart` + * `ssPBCH_BlockPower` is average EPRE of the resource elements carrying the secondary synchronization signals, expressed in dBm. It can be estimated using the following formula: + + > ssPBCH_BlockPower = P_TX − 10 x log10(N_RE) + 10 x log10(N_antenna_SSB) + + where: + * `P_TX` is the total transmit power of the RU in dBm (configured on the RU). + * `N_RE` is the number of resource elements used for the transmission. + * `N_antenna_SSB` is the number of antenna ports used for SSB transmission (currently, a single antenna port is used for SSB transmission). * Adjust the frequency, bandwidth and SSB position * `L1s` section