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Increase SRS periodicity to get higher bitrate in NSA

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This commit is contained in:
rmagueta
2021-12-14 18:07:41 +00:00
parent edb6b9b422
commit 351b74205b
1 changed files with 5 additions and 5 deletions
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openair2/RRC/NR/rrc_gNB_reconfig.c
+5 -5
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@@ -65,8 +65,8 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
// This assert will never happen in the current implementation because NUMBER_OF_UE_MAX = 4.
// However, if in the future NUMBER_OF_UE_MAX is increased, it will be necessary to improve the allocation of SRS resources,
// where the startPosition = 1, 2 or 3 and sl40 = 7, 17, 27 or 37 only give us 12 different allocations.
AssertFatal(uid>=0 && uid<12, "gNB cannot allocate the SRS resources\n");
// where the startPosition = 2 or 3 and sl160 = 17, 17, 27 ... 157 only give us 30 different allocations.
AssertFatal(uid>=0 && uid<30, "gNB cannot allocate the SRS resources\n");
uint64_t bitmap=0;
switch (servingcellconfigcommon->ssb_PositionsInBurst->present) {
@@ -836,7 +836,7 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
srs_res0->transmissionComb.choice.n2=calloc(1,sizeof(*srs_res0->transmissionComb.choice.n2));
srs_res0->transmissionComb.choice.n2->combOffset_n2=0;
srs_res0->transmissionComb.choice.n2->cyclicShift_n2=0;
srs_res0->resourceMapping.startPosition = 1 + uid%3;
srs_res0->resourceMapping.startPosition = 2 + uid%2;
srs_res0->resourceMapping.nrofSymbols=NR_SRS_Resource__resourceMapping__nrofSymbols_n1;
srs_res0->resourceMapping.repetitionFactor=NR_SRS_Resource__resourceMapping__repetitionFactor_n1;
srs_res0->freqDomainPosition=0;
@@ -851,8 +851,8 @@ void fill_default_secondaryCellGroup(NR_ServingCellConfigCommon_t *servingcellco
if(do_srs) {
srs_res0->resourceType.present= NR_SRS_Resource__resourceType_PR_periodic;
srs_res0->resourceType.choice.periodic=calloc(1,sizeof(*srs_res0->resourceType.choice.periodic));
srs_res0->resourceType.choice.periodic->periodicityAndOffset_p.present = NR_SRS_PeriodicityAndOffset_PR_sl40;
srs_res0->resourceType.choice.periodic->periodicityAndOffset_p.choice.sl40 = 7 + (uid/3)*10; // 7/17/27/37 are mixed slots
srs_res0->resourceType.choice.periodic->periodicityAndOffset_p.present = NR_SRS_PeriodicityAndOffset_PR_sl160;
srs_res0->resourceType.choice.periodic->periodicityAndOffset_p.choice.sl160 = 17 + (uid>1)*10; // 17/17/.../147/157 are mixed slots
} else {
srs_res0->resourceType.present= NR_SRS_Resource__resourceType_PR_aperiodic;
srs_res0->resourceType.choice.aperiodic=calloc(1,sizeof(*srs_res0->resourceType.choice.aperiodic));