Skip to content

O
OpenXG-RAN
Commit d7c651a0 authored by francescomani's avatar francescomani
Browse files
Options

MAC procedures to handle DLSCH allocation type 0

parent 790c3b99
Show whitespace changes
Inline Side-by-side
Showing with 102 additions and 44 deletions
nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h
View file @ d7c651a0
......@@ -337,7 +337,7 @@ typedef struct
uint16_t dmrs_ports;//DMRS ports. [TS38.212 7.3.1.1.2] provides description between DCI 0-1 content and DMRS ports. Bitmap occupying the 11 LSBs with: bit 0: antenna port 1000 bit 11: antenna port 1011 and for each bit 0: DMRS port not used 1: DMRS port used
//Pusch Allocation in frequency domain [TS38.214, sec 6.1.2.2]
uint8_t resource_alloc;
uint8_t rb_bitmap[36];//
uint8_t rb_bitmap[36];
uint16_t rb_start;
uint16_t rb_size;
uint8_t vrb_to_prb_mapping;
......@@ -438,6 +438,8 @@ typedef struct {
uint16_t BWPSize;
uint16_t BWPStart;
uint8_t SubcarrierSpacing;
uint8_t resource_alloc;
uint8_t rb_bitmap[36];
uint16_t number_rbs;
uint16_t start_rb;
uint16_t number_symbols;
......
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
View file @ d7c651a0
......@@ -513,6 +513,9 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue,
uint16_t s0 = dlsch0->dlsch_config.start_symbol;
uint16_t s1 = dlsch0->dlsch_config.number_symbols;
AssertFatal(dlsch0->dlsch_config.resource_alloc == 1,
"DLSCH resource allocation type0 not supported at PHY\n");
LOG_D(PHY,"[UE %d] nr_slot_rx %d, harq_pid %d (%d), BWP start %d, rb_start %d, nb_rb %d, symbol_start %d, nb_symbols %d, DMRS mask %x, Nl %d\n",
ue->Mod_id,nr_slot_rx,harq_pid,dlsch0_harq->status,BWPStart,pdsch_start_rb,pdsch_nb_rb,s0,s1,dlsch0->dlsch_config.dlDmrsSymbPos, dlsch0->Nl);
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c
View file @ d7c651a0
......@@ -2594,20 +2594,23 @@ uint32_t nr_get_code_rate_ul(uint8_t Imcs, uint8_t table_idx) {
}
// Table 5.1.2.2.1-1 38.214
uint8_t getRBGSize(uint16_t bwp_size, long rbg_size_config) {
AssertFatal(bwp_size < 276,"Invalid BWP Size > 275\n");
if (bwp_size < 37) return (rbg_size_config ? 4 : 2);
if (bwp_size < 73) return (rbg_size_config ? 8 : 4);
if (bwp_size < 145) return (rbg_size_config ? 16 : 8);
else return 16;
uint8_t getRBGSize(uint16_t bwp_size, long rbg_size_config)
{
AssertFatal(bwp_size < 276, "Invalid BWP Size %d\n", bwp_size);
if (bwp_size < 37)
return (rbg_size_config ? 4 : 2);
if (bwp_size < 73)
return (rbg_size_config ? 8 : 4);
if (bwp_size < 145)
return (rbg_size_config ? 16 : 8);
else
return 16;
}
uint8_t getNRBG(uint16_t bwp_size, uint16_t bwp_start, long rbg_size_config) {
uint8_t rbg_size = getRBGSize(bwp_size,rbg_size_config);
return (uint8_t)ceil((float)(bwp_size+(bwp_start % rbg_size))/(float)rbg_size);
uint8_t getNRBG(uint16_t bwp_size, uint16_t bwp_start, long rbg_size_config)
{
uint8_t rbg_size = getRBGSize(bwp_size, rbg_size_config);
return (uint8_t)ceil((float)(bwp_size + (bwp_start % rbg_size)) / (float)rbg_size);
}
uint8_t getAntPortBitWidth(NR_SetupRelease_DMRS_DownlinkConfig_t *typeA, NR_SetupRelease_DMRS_DownlinkConfig_t *typeB) {
......
openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h
View file @ d7c651a0
......@@ -93,6 +93,8 @@ NR_tda_info_t get_ul_tda_info(const NR_UE_UL_BWP_t *ul_bwp, int controlResourceS
NR_tda_info_t get_dl_tda_info(const NR_UE_DL_BWP_t *dl_BWP, int ss_type, int tda_index, int dmrs_typeA_pos,
int mux_pattern, nr_rnti_type_t rnti_type, int coresetid, bool sib1);
uint8_t getRBGSize(uint16_t bwp_size, long rbg_size_config);
uint16_t nr_dci_size(const NR_UE_DL_BWP_t *DL_BWP,
const NR_UE_UL_BWP_t *UL_BWP,
const NR_CrossCarrierSchedulingConfig_t *crossCarrierSchedulingConfig,
......
openair2/LAYER2/NR_MAC_UE/mac_proto.h
View file @ d7c651a0
......@@ -391,9 +391,11 @@ void nr_ue_msg2_scheduler(module_id_t mod_id, uint16_t rach_frame, uint16_t rach
int8_t nr_ue_process_dci_freq_dom_resource_assignment(nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu,
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu,
NR_PDSCH_Config_t *pdsch_Config,
uint16_t n_RB_ULBWP,
uint16_t n_RB_DLBWP,
uint16_t riv);
int start_DLBWP,
dci_field_t frequency_domain_assignment);
void build_ssb_to_ro_map(NR_UE_MAC_INST_t *mac);
......
openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c
View file @ d7c651a0
......@@ -316,38 +316,63 @@ int8_t nr_ue_decode_BCCH_DL_SCH(module_id_t module_id,
*/
int8_t nr_ue_process_dci_freq_dom_resource_assignment(nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu,
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu,
NR_PDSCH_Config_t *pdsch_Config,
uint16_t n_RB_ULBWP,
uint16_t n_RB_DLBWP,
uint16_t riv)
int start_DLBWP,
dci_field_t frequency_domain_assignment)
{
/*
* TS 38.214 subclause 5.1.2.2 Resource allocation in frequency domain (downlink)
* when the scheduling grant is received with DCI format 1_0, then downlink resource allocation type 1 is used
*/
if(dlsch_config_pdu != NULL){
/*
* TS 38.214 subclause 5.1.2.2.1 Downlink resource allocation type 0
*/
/*
* TS 38.214 subclause 5.1.2.2.2 Downlink resource allocation type 1
*/
if(dlsch_config_pdu != NULL) {
if (pdsch_Config &&
pdsch_Config->resourceAllocation == NR_PDSCH_Config__resourceAllocation_resourceAllocationType0) {
// TS 38.214 subclause 5.1.2.2.1 Downlink resource allocation type 0
dlsch_config_pdu->resource_alloc = 0;
int P = getRBGSize(n_RB_DLBWP, pdsch_Config->rbg_Size);
int n_RBG = frequency_domain_assignment.nbits;
int index = 0;
for (int i = 0; i < n_RBG; i++) {
// The order of RBG bitmap is such that RBG 0 to RBG n_RBG − 1 are mapped from MSB to LSB
int bit_rbg = (frequency_domain_assignment.val >> (n_RBG - 1 - i)) & 0x01;
int size_RBG;
if (i == n_RBG - 1)
size_RBG = (start_DLBWP + n_RB_DLBWP) % P > 0 ?
(start_DLBWP + n_RB_DLBWP) % P :
P;
else if (i == 0)
size_RBG = P - (start_DLBWP % P);
else
size_RBG = P;
for (int j = index; j < size_RBG; j++)
dlsch_config_pdu->rb_bitmap[j / 8] |= bit_rbg << (j % 8);
index += size_RBG;
}
}
else if (pdsch_Config &&
pdsch_Config->resourceAllocation == NR_PDSCH_Config__resourceAllocation_dynamicSwitch)
AssertFatal(false, "DLSCH dynamic switch allocation not yet supported\n");
else {
// TS 38.214 subclause 5.1.2.2.2 Downlink resource allocation type 1
dlsch_config_pdu->resource_alloc = 1;
int riv = frequency_domain_assignment.val;
dlsch_config_pdu->number_rbs = NRRIV2BW(riv,n_RB_DLBWP);
dlsch_config_pdu->start_rb = NRRIV2PRBOFFSET(riv,n_RB_DLBWP);
// Sanity check in case a false or erroneous DCI is received
if ((dlsch_config_pdu->number_rbs < 1 ) || (dlsch_config_pdu->number_rbs > n_RB_DLBWP - dlsch_config_pdu->start_rb)) {
if ((dlsch_config_pdu->number_rbs < 1) || (dlsch_config_pdu->number_rbs > n_RB_DLBWP - dlsch_config_pdu->start_rb)) {
// DCI is invalid!
LOG_W(MAC, "Frequency domain assignment values are invalid! #RBs: %d, Start RB: %d, n_RB_DLBWP: %d \n", dlsch_config_pdu->number_rbs, dlsch_config_pdu->start_rb, n_RB_DLBWP);
return -1;
}
LOG_D(MAC,"DLSCH riv = %i\n", riv);
LOG_D(MAC,"DLSCH n_RB_DLBWP = %i\n", n_RB_DLBWP);
LOG_D(MAC,"DLSCH number_rbs = %i\n", dlsch_config_pdu->number_rbs);
LOG_D(MAC,"DLSCH start_rb = %i\n", dlsch_config_pdu->start_rb);
}
}
if(pusch_config_pdu != NULL){
/*
......@@ -359,7 +384,7 @@ int8_t nr_ue_process_dci_freq_dom_resource_assignment(nfapi_nr_ue_pusch_pdu_t *p
/*
* TS 38.214 subclause 6.1.2.2.2 Uplink resource allocation type 1
*/
int riv = frequency_domain_assignment.val;
pusch_config_pdu->rb_size = NRRIV2BW(riv,n_RB_ULBWP);
pusch_config_pdu->rb_start = NRRIV2PRBOFFSET(riv,n_RB_ULBWP);
......@@ -643,7 +668,13 @@ static int nr_ue_process_dci_dl_10(module_id_t module_id,
/* IDENTIFIER_DCI_FORMATS */
/* FREQ_DOM_RESOURCE_ASSIGNMENT_DL */
if (nr_ue_process_dci_freq_dom_resource_assignment(NULL, dlsch_pdu, 0, dlsch_pdu->BWPSize, dci->frequency_domain_assignment.val)
if (nr_ue_process_dci_freq_dom_resource_assignment(NULL,
dlsch_pdu,
NULL,
0,
dlsch_pdu->BWPSize,
0,
dci->frequency_domain_assignment)
< 0) {
LOG_W(MAC, "[%d.%d] Invalid frequency_domain_assignment. Possibly due to false DCI. Ignoring DCI!\n", frame, slot);
return -1;
......@@ -912,9 +943,11 @@ static int nr_ue_process_dci_dl_11(module_id_t module_id,
/* FREQ_DOM_RESOURCE_ASSIGNMENT_DL */
if (nr_ue_process_dci_freq_dom_resource_assignment(NULL,
dlsch_pdu,
pdsch_Config,
0,
current_DL_BWP->BWPSize,
dci->frequency_domain_assignment.val)
current_DL_BWP->BWPStart,
dci->frequency_domain_assignment)
< 0) {
LOG_W(MAC, "[%d.%d] Invalid frequency_domain_assignment. Possibly due to false DCI. Ignoring DCI!\n", frame, slot);
return -1;
......
openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c
View file @ d7c651a0
......@@ -467,8 +467,15 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
else
mask = (1 << (28 - (int)(ceil(log2((ibwp_size*(ibwp_size+1))>>1))))) - 1;
int f_alloc = rar_grant->Msg3_f_alloc & mask;
if (nr_ue_process_dci_freq_dom_resource_assignment(pusch_config_pdu, NULL, ibwp_size, 0, f_alloc) < 0)
dci_field_t f_alloc;
f_alloc.val = rar_grant->Msg3_f_alloc & mask;
if (nr_ue_process_dci_freq_dom_resource_assignment(pusch_config_pdu,
NULL,
NULL,
ibwp_size,
0,
0,
f_alloc) < 0)
return -1;
// virtual resource block to physical resource mapping for Msg3 PUSCH (6.3.1.7 in 38.211)
......@@ -598,7 +605,13 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac,
/* IDENTIFIER_DCI_FORMATS */
/* FREQ_DOM_RESOURCE_ASSIGNMENT_UL */
if (nr_ue_process_dci_freq_dom_resource_assignment(pusch_config_pdu, NULL, current_UL_BWP->BWPSize, 0, dci->frequency_domain_assignment.val) < 0){
if (nr_ue_process_dci_freq_dom_resource_assignment(pusch_config_pdu,
NULL,
NULL,
current_UL_BWP->BWPSize,
0,
0,
dci->frequency_domain_assignment) < 0) {
return -1;
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment