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

some bug fixes for RA procedure in UE

Browse Source 
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7765 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
knopp
2015-08-05 08:08:02 +00:00
parent ebcca503f9
commit d36446e58c
1 changed files with 59 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/LAYER2/MAC/ra_procedures.c
+59 -10
View File
@@ -107,6 +107,7 @@ int8_t get_DELTA_PREAMBLE(module_id_t module_idP,int CC_id)
}
/// This routine implements Section 5.1.2 (UE Random Access Resource Selection) from 36.321
void get_prach_resources(module_id_t module_idP,
int CC_id,
@@ -121,6 +122,11 @@ void get_prach_resources(module_id_t module_idP,
RACH_ConfigCommon_t *rach_ConfigCommon = NULL;
uint8_t noGroupB = 0;
uint8_t f_id = 0,num_prach=0;
int numberOfRA_Preambles = (1+rach_ConfigCommon->preambleInfo.numberOfRA_Preambles)<<2;
int messageSizeGroupA;
int sizeOfRA_PreamblesGroupA;
int messagePowerOffsetGroupB;
int PLThreshold;
if (CC_id>0) {
LOG_E(MAC,"Transmission on secondary CCs is not supported yet\n");
@@ -147,8 +153,53 @@ void get_prach_resources(module_id_t module_idP,
if (!rach_ConfigCommon->preambleInfo.preamblesGroupAConfig) {
noGroupB = 1;
} else {
if (rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->sizeOfRA_PreamblesGroupA ==
rach_ConfigCommon->preambleInfo.numberOfRA_Preambles) {
sizeOfRA_PreamblesGroupA = (rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->sizeOfRA_PreamblesGroupA+1)<<2;
switch (rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->messageSizeGroupA) {
case 0:
messageSizeGroupA = 56;
break;
case 1:
messageSizeGroupA = 144;
break;
case 2:
messageSizeGroupA = 208;
break;
case 3:
messageSizeGroupA = 256;
break;
}
switch (rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->messagePowerOffsetGroupB) {
case 0:
messagePowerOffsetGroupB = -9999;
break;
case 1:
messagePowerOffsetGroupB = 0;
break;
case 2:
messagePowerOffsetGroupB = 5;
break;
case 3:
messagePowerOffsetGroupB = 8;
break;
case 4:
messagePowerOffsetGroupB = 10;
break;
case 5:
messagePowerOffsetGroupB = 12;
break;
case 6:
messagePowerOffsetGroupB = 15;
break;
case 7:
messagePowerOffsetGroupB = 18;
break;
}
PLThreshold = 0 - get_DELTA_PREAMBLE(module_idP,CC_id) - get_Po_NOMINAL_PUSCH(module_idP,CC_id) - messagePowerOffsetGroupB;
// Note Pcmax is set to 0 here, we have to fix this
if (sizeOfRA_PreamblesGroupA == numberOfRA_Preambles) {
noGroupB = 1;
}
}
@@ -156,20 +207,18 @@ void get_prach_resources(module_id_t module_idP,
if (first_Msg3 == 1) {
if (noGroupB == 1) {
// use Group A procedure
UE_mac_inst[module_idP].RA_prach_resources.ra_PreambleIndex = (taus())&0x3f;
UE_mac_inst[module_idP].RA_prach_resources.ra_PreambleIndex = (taus())%numberOfRA_Preambles;
UE_mac_inst[module_idP].RA_prach_resources.ra_RACH_MaskIndex = 0;
UE_mac_inst[module_idP].RA_usedGroupA = 1;
} else if ((Msg3_size < rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->messageSizeGroupA) ||
(mac_xface->get_PL(module_idP,0,eNB_index) > UE_mac_inst[module_idP].RA_maxPL)) {
} else if ((Msg3_size <messageSizeGroupA) ||
(mac_xface->get_PL(module_idP,0,eNB_index) > PLThreshold)) {
// use Group A procedure
UE_mac_inst[module_idP].RA_prach_resources.ra_PreambleIndex = (taus())%rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->sizeOfRA_PreamblesGroupA;
UE_mac_inst[module_idP].RA_prach_resources.ra_PreambleIndex = (taus())%sizeOfRA_PreamblesGroupA;
UE_mac_inst[module_idP].RA_prach_resources.ra_RACH_MaskIndex = 0;
UE_mac_inst[module_idP].RA_usedGroupA = 1;
} else { // use Group B
UE_mac_inst[module_idP].RA_prach_resources.ra_PreambleIndex =
rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->sizeOfRA_PreamblesGroupA +
(taus())%(rach_ConfigCommon->preambleInfo.numberOfRA_Preambles -
rach_ConfigCommon->preambleInfo.preamblesGroupAConfig->sizeOfRA_PreamblesGroupA);
UE_mac_inst[module_idP].RA_prach_resources.ra_PreambleIndex = sizeOfRA_PreamblesGroupA +
(taus())%(numberOfRA_Preambles - sizeOfRA_PreamblesGroupA);
UE_mac_inst[module_idP].RA_prach_resources.ra_RACH_MaskIndex = 0;
UE_mac_inst[module_idP].RA_usedGroupA = 0;
}