maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix for ssb subcarrier offset in case of <3GHz

Browse Source
This commit is contained in:
francescomani
2022-07-22 17:01:47 +02:00
parent 72bf1b1d3c
commit 228bd5f16d
2 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/RRC/NR/MESSAGES/asn1_msg.c
+1 -1
View File
@@ -230,7 +230,7 @@ uint8_t do_MIB_NR(gNB_RRC_INST *rrc,uint32_t frame) {
if (get_softmodem_params()->sa) {
uint32_t absolute_diff = (*scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencySSB - scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA);
int scs_scaling = scc->downlinkConfigCommon->frequencyInfoDL->absoluteFrequencyPointA < 600000 ? 3 : 1;
ssb_subcarrier_offset = (absolute_diff*scs_scaling)%24;
ssb_subcarrier_offset = (absolute_diff/scs_scaling)%24;
if(frequency_range == FR2)
ssb_subcarrier_offset >>= 1; // this assumes 120kHz SCS for SSB and subCarrierSpacingCommon (only option supported by OAI for now)
}