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PNF: Deliver DL_TTI.req/TX_data.req only pairwise to L1

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the L1 needs both a PDU (in TX_data.req) as well instructions for
the actual transmission (in DL_TTI.req) to encode a PDSCH message. In
nFAPI, it can happen that a DL_TTI.request message has been received
(configuring the PDSCH transmission), without the TX_data.request having
reached the PNF. The L1 assumes to have the PDU.

To avoid problems, ensure that only the pair of DL_TTI.req/TX_data.req
is delivered. Otherwise, drop either message.
This commit is contained in:
Robert Schmidt
2025-01-27 10:59:19 +01:00
parent 77837c7428
commit 06a76c3bbc
1 changed files with 21 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
nfapi/open-nFAPI/pnf/src/pnf_p7.c
+21 -13
View File
@@ -818,13 +818,29 @@ int pnf_p7_slot_ind(pnf_p7_t* pnf_p7, uint16_t phy_id, uint16_t sfn, uint16_t sl
nfapi_pnf_p7_slot_buffer_t* tx_slot_buffer = &(pnf_p7->slot_buffer[buffer_index_tx]);
if(tx_slot_buffer->dl_tti_req.dl_tti_request_body.nPDUs > 0 && tx_slot_buffer->dl_tti_req.SFN == sfn && tx_slot_buffer->dl_tti_req.Slot == slot)
{
DevAssert(pnf_p7->_public.dl_tti_req_fn != NULL);
(pnf_p7->_public.dl_tti_req_fn)(NULL, &(pnf_p7->_public), &tx_slot_buffer->dl_tti_req);
nfapi_nr_dl_tti_request_t* dl_tti_req = &tx_slot_buffer->dl_tti_req;
nfapi_nr_tx_data_request_t* tx_data_req = &tx_slot_buffer->tx_data_req;
if (dl_tti_req->dl_tti_request_body.nPDUs > 0 && dl_tti_req->SFN == sfn && dl_tti_req->Slot == slot) {
DevAssert(pnf_p7->_public.dl_tti_req_fn != NULL);
DevAssert(pnf_p7->_public.tx_data_req_fn != NULL);
if (tx_data_req->Number_of_PDUs > 0 && tx_data_req->SFN == sfn && tx_data_req->Slot == slot) {
(pnf_p7->_public.dl_tti_req_fn)(NULL, &(pnf_p7->_public), dl_tti_req);
(pnf_p7->_public.tx_data_req_fn)(&(pnf_p7->_public), tx_data_req);
} else {
NFAPI_TRACE(NFAPI_TRACE_ERROR, "%4d.%2d no corresponding tx_data.request for dl_tti.request, dropping\n", sfn, slot);
}
tx_slot_buffer->dl_tti_req.SFN = -1;
tx_slot_buffer->dl_tti_req.Slot = -1;
}
tx_slot_buffer->tx_data_req.SFN = -1;
tx_slot_buffer->tx_data_req.Slot = -1;
}
if (tx_data_req->Number_of_PDUs > 0 && tx_data_req->SFN == sfn && tx_data_req->Slot == slot) {
// there is a tx_data.request in this slot, but no corresponding
// dl_tti.request (when they need to come pairwise)
NFAPI_TRACE(NFAPI_TRACE_ERROR, "%4d.%2d no corresponding dl_tti.request for tx_data.request, dropping\n", sfn, slot);
tx_slot_buffer->tx_data_req.SFN = -1;
tx_slot_buffer->tx_data_req.Slot = -1;
}
if(tx_slot_buffer->ul_tti_req.n_pdus > 0 && tx_slot_buffer->ul_tti_req.SFN == sfn && tx_slot_buffer->ul_tti_req.Slot == slot)
{
@@ -834,14 +850,6 @@ int pnf_p7_slot_ind(pnf_p7_t* pnf_p7, uint16_t phy_id, uint16_t sfn, uint16_t sl
tx_slot_buffer->ul_tti_req.Slot = -1;
}
if(tx_slot_buffer->tx_data_req.Number_of_PDUs > 0 && tx_slot_buffer->tx_data_req.SFN == sfn && tx_slot_buffer->tx_data_req.Slot == slot)
{
DevAssert(pnf_p7->_public.tx_data_req_fn != NULL);
(pnf_p7->_public.tx_data_req_fn)(&(pnf_p7->_public), &tx_slot_buffer->tx_data_req);
tx_slot_buffer->tx_data_req.SFN = -1;
tx_slot_buffer->tx_data_req.Slot = - 1;
}
if(tx_slot_buffer->ul_dci_req.numPdus > 0 && tx_slot_buffer->ul_dci_req.SFN == sfn && tx_slot_buffer->ul_dci_req.Slot == slot)
{
DevAssert(pnf_p7->_public.ul_dci_req_fn != NULL);