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SDAP Entity reconfiguration at UE according to TS 37.324

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- triggered by RRC reconfiguration events according to clause 5.3.5.6.5 of TS 38.331
- This procedure does QoS flow to DRB mapping according to clause 5.3.1 of TS 37.324
- QoS flows to DRBs to be released are also handled
This commit is contained in:
Guido Casati
2024-02-27 09:47:26 +01:00
parent bc0cab7a08
commit edb2dd7d6d
4 changed files with 50 additions and 6 deletions
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openair2/SDAP/nr_sdap/nr_sdap_entity.c
+40
View File
@@ -641,3 +641,43 @@ bool nr_sdap_delete_ue_entities(ue_id_t ue_id)
}
return ret;
}
/**
* @brief SDAP Entity reconfiguration at UE according to TS 37.324
* and triggered by RRC reconfiguration events according to clause 5.3.5.6.5 of TS 38.331.
* This function performs:
* - QoS flow to DRB mapping according to clause 5.3.1 of TS 37.324
*/
void nr_reconfigure_sdap_entity(NR_SDAP_Config_t *sdap_config, ue_id_t ue_id, int pdusession_id, int drb_id)
{
bool is_gnb = false;
/* fetch SDAP entity */
nr_sdap_entity_t *sdap_entity = nr_sdap_get_entity(ue_id, pdusession_id);
AssertError(sdap_entity != NULL,
return,
"Could not find SDAP Entity for RNTI/UE ID: %lu and PDU SESSION ID: %d\n",
ue_id,
pdusession_id);
/* QFI to DRB mapping */
NR_QFI_t *mappedQFIs2Add = (NR_QFI_t *)sdap_config->mappedQoS_FlowsToAdd->list.array[0];
uint8_t mappedQFIs2AddCount = sdap_config->mappedQoS_FlowsToAdd->list.count;
bool has_sdap_rx = is_sdap_rx(is_gnb, sdap_config);
bool has_sdap_tx = is_sdap_tx(is_gnb, sdap_config);
nr_sdap_ue_qfi2drb_config(sdap_entity,
sdap_entity->default_drb,
ue_id,
mappedQFIs2Add,
mappedQFIs2AddCount,
drb_id,
has_sdap_rx,
has_sdap_tx);
/* handle QFIs to DRB mapping rule to release */
if (sdap_config->mappedQoS_FlowsToRelease) {
NR_QFI_t *mappedQFIs2release = (NR_QFI_t *)sdap_config->mappedQoS_FlowsToRelease->list.array[0];
uint8_t mappedQFIs2RemoveCount = sdap_config->mappedQoS_FlowsToRelease->list.count;
for(int i = 0; i < mappedQFIs2RemoveCount; i++){
uint8_t qfi = mappedQFIs2release[i];
sdap_entity->qfi2drb_map_delete(sdap_entity, qfi);
}
}
}
openair2/SDAP/nr_sdap/nr_sdap_entity.h
+6
View File
@@ -205,4 +205,10 @@ bool is_sdap_rx(bool is_gnb, NR_SDAP_Config_t *sdap_config);
*/
bool is_sdap_tx(bool is_gnb, NR_SDAP_Config_t *sdap_config);
/**
* @brief Run the SDAP reconfiguration for the DRB
* @param[in] ue_id Unique identifier for the User Equipment. ID Range [0, 65536].
*/
void nr_reconfigure_sdap_entity(NR_SDAP_Config_t *sdap_config, ue_id_t ue_id, int pdusession_id, int drb_id);
#endif