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srsue,phy: use common pucch for msg3. Completed table for all pucch_common_idx values

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master
Ismael Gomez 3 years ago
parent 7bb6aa1f50
commit f83557b891
4 changed files with 81 additions and 35 deletions
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2
lib/include/srsran/phy/phch/ra_ul_nr.h
Unescape Escape View File

@ -119,11 +119,13 @@ SRSRAN_API int srsran_ra_ul_nr_freq(const srsran_carrier_nr_t* carrier,
* @brief Selects a valid PUCCH resource for transmission
* @param pucch_cfg PUCCH configuration from upper layers
* @param uci_cfg Uplink Control information configuration (and PDCCH context)
* @param N_bwp_sz Uplink BWP size in nof_prb
* @param[out] resource Selected resource for transmitting PUCCH
* @return SRSRAN_SUCCESS if provided configuration is valid, SRSRAN_ERROR code otherwise
*/
SRSRAN_API int srsran_ra_ul_nr_pucch_resource(const srsran_pucch_nr_hl_cfg_t* pucch_cfg,
const srsran_uci_cfg_nr_t* uci_cfg,
uint32_t N_bwp_sz,
srsran_pucch_nr_resource_t* resource);
/**

2
lib/src/common/phy_cfg_nr.cc
Unescape Escape View File

@ -321,7 +321,7 @@ bool phy_cfg_nr_t::get_pucch_uci_cfg(const srsran_slot_cfg_t& slot_cfg,
srsran_pucch_nr_resource_t& resource) const
{
// Select PUCCH resource
if (srsran_ra_ul_nr_pucch_resource(&pucch, &uci_cfg, &resource) < SRSRAN_SUCCESS) {
if (srsran_ra_ul_nr_pucch_resource(&pucch, &uci_cfg, carrier.nof_prb, &resource) < SRSRAN_SUCCESS) {
ERROR("Selecting PUCCH resource");
return false;
}

87
lib/src/phy/phch/ra_ul_nr.c
Unescape Escape View File

@ -470,31 +470,89 @@ int srsran_ra_ul_nr_freq(const srsran_carrier_nr_t* carrier,
return SRSRAN_ERROR;
}
typedef struct {
srsran_pucch_nr_format_t format;
uint32_t start_symbol;
uint32_t rb_offset;
uint32_t N_cs;
} pucch_res_common_cfg_t;
// Table 9.2.1-1
#define PUCCH_RES_COMMON_CFG_IDX_MAX 15
static pucch_res_common_cfg_t pucch_res_common_cfg[PUCCH_RES_COMMON_CFG_IDX_MAX + 1] = {
{SRSRAN_PUCCH_NR_FORMAT_0, 12, 0, 2},
{SRSRAN_PUCCH_NR_FORMAT_0, 12, 0, 3},
{SRSRAN_PUCCH_NR_FORMAT_0, 12, 3, 3},
{SRSRAN_PUCCH_NR_FORMAT_1, 10, 0, 2},
{SRSRAN_PUCCH_NR_FORMAT_1, 10, 0, 3},
{SRSRAN_PUCCH_NR_FORMAT_1, 10, 2, 3},
{SRSRAN_PUCCH_NR_FORMAT_1, 10, 4, 3},
{SRSRAN_PUCCH_NR_FORMAT_1, 4, 0, 2},
{SRSRAN_PUCCH_NR_FORMAT_1, 4, 0, 3},
{SRSRAN_PUCCH_NR_FORMAT_1, 4, 2, 3},
{SRSRAN_PUCCH_NR_FORMAT_1, 4, 4, 3},
{SRSRAN_PUCCH_NR_FORMAT_1, 0, 0, 2},
{SRSRAN_PUCCH_NR_FORMAT_1, 0, 0, 4},
{SRSRAN_PUCCH_NR_FORMAT_1, 0, 2, 4},
{SRSRAN_PUCCH_NR_FORMAT_1, 0, 4, 4},
{SRSRAN_PUCCH_NR_FORMAT_1, 0, 0, 4}};
// Implements TS 38.213 Table 9.2.1-1: PUCCH resource sets before dedicated PUCCH resource configuration
static int ra_ul_nr_pucch_resource_default(uint32_t r_pucch, srsran_pucch_nr_resource_t* resource)
static int ra_ul_nr_pucch_resource_default(uint32_t pucch_res_common_idx,
uint32_t N_size_bwp,
uint32_t r_pucch,
srsran_pucch_nr_resource_t* resource)
{
// From BWP config
uint32_t N_size_bwp = 52;
if (pucch_res_common_idx > PUCCH_RES_COMMON_CFG_IDX_MAX) {
ERROR("Invalid pucch_res_common_idx value (%d)\n", pucch_res_common_idx);
return SRSRAN_ERROR;
}
uint32_t cs_v_2[2] = {0, 6};
uint32_t cs_v_3[3] = {0, 4, 8};
uint32_t cs_v_4[4] = {0, 3, 6, 9};
// From row of index 11
uint32_t rb_offset_bwp = 0;
uint32_t N_cs = 2;
uint32_t cs_v[2] = {0, 6};
// Table 9.2.1-1
resource->format = pucch_res_common_cfg[pucch_res_common_idx].format;
resource->start_symbol_idx = pucch_res_common_cfg[pucch_res_common_idx].start_symbol;
resource->nof_symbols = 14 - resource->start_symbol_idx;
uint32_t rb_offset_bwp = pucch_res_common_cfg[pucch_res_common_idx].rb_offset;
uint32_t N_cs = pucch_res_common_cfg[pucch_res_common_idx].N_cs;
// Special case for cs_v_2 value
if (pucch_res_common_idx == 0) {
cs_v_2[1] = 3;
}
resource->start_symbol_idx = 0;
resource->nof_symbols = 14;
// Special case for rb_offset
if (pucch_res_common_idx == 15) {
rb_offset_bwp = N_size_bwp / 4;
}
uint32_t csv_idx = 0;
if (r_pucch / 8 == 0) {
resource->starting_prb = rb_offset_bwp + SRSRAN_FLOOR(r_pucch, N_cs);
resource->second_hop_prb = N_size_bwp - 1 - resource->starting_prb;
resource->initial_cyclic_shift = cs_v[r_pucch % N_cs];
csv_idx = r_pucch % N_cs;
} else {
resource->second_hop_prb = rb_offset_bwp + SRSRAN_FLOOR(r_pucch - 8, N_cs);
resource->starting_prb = N_size_bwp - 1 - resource->second_hop_prb;
resource->initial_cyclic_shift = cs_v[(r_pucch - 8) % N_cs];
csv_idx = (r_pucch - 8) % N_cs;
}
return SRSRAN_ERROR;
switch (N_cs) {
case 2:
resource->initial_cyclic_shift = cs_v_2[csv_idx];
break;
case 3:
resource->initial_cyclic_shift = cs_v_3[csv_idx];
break;
case 4:
resource->initial_cyclic_shift = cs_v_4[csv_idx];
break;
}
return SRSRAN_SUCCESS;
}
static int ra_ul_nr_pucch_resource_hl(const srsran_pucch_nr_hl_cfg_t* cfg,
@ -542,6 +600,7 @@ static int ra_ul_nr_pucch_resource_hl(const srsran_pucch_nr_hl_cfg_t* cfg,
int srsran_ra_ul_nr_pucch_resource(const srsran_pucch_nr_hl_cfg_t* pucch_cfg,
const srsran_uci_cfg_nr_t* uci_cfg,
uint32_t N_bwp_sz,
srsran_pucch_nr_resource_t* resource)
{
if (pucch_cfg == NULL || uci_cfg == NULL || resource == NULL) {
@ -643,9 +702,9 @@ int srsran_ra_ul_nr_pucch_resource(const srsran_pucch_nr_hl_cfg_t* pucch_cfg,
// a PUCCH resource set is provided by pucch-ResourceCommon through an index to a row of Table 9.2.1-1 for size
// transmission of HARQ-ACK information on PUCCH in an initial UL BWP of N BWP PRBs.
if (!pucch_cfg->enabled) {
uint32_t N_cce = SRSRAN_FLOOR(52, 6);
uint32_t N_cce = SRSRAN_FLOOR(N_bwp_sz, 6);
uint32_t r_pucch = ((2 * uci_cfg->pucch.n_cce_0) / N_cce) + 2 * uci_cfg->pucch.resource_id;
return ra_ul_nr_pucch_resource_default(r_pucch, resource);
return ra_ul_nr_pucch_resource_default(pucch_cfg->common.resource_common, N_bwp_sz, r_pucch, resource);
}
return ra_ul_nr_pucch_resource_hl(pucch_cfg, uci_cfg, uci_cfg->pucch.resource_id, resource);
}

17
srsue/src/phy/nr/cc_worker.cc
Unescape Escape View File

@ -669,24 +669,9 @@ bool cc_worker::work_ul()
phy.set_ul_metrics(ul_m);
} else if (srsran_uci_nr_total_bits(&uci_data.cfg) > 0) {
// Currently, default PUCCH is not supported, in this case log it and pretend no UCI was available
if (not cfg.pucch.enabled) {
if (logger.info.enabled()) {
std::array<char, 512> str;
srsran_uci_nr_info(&uci_data, str.data(), str.size());
logger.info(
"PUCCH: No PUCCH resource to transmit UCI cc=%d, %s, tti_tx=%d", cc_idx, str.data(), ul_slot_cfg.idx);
}
// No NR signal shall be transmitted
srsran_vec_cf_zero(tx_buffer[0], ue_ul.ifft.sf_sz);
return true;
}
// Get PUCCH resource
srsran_pucch_nr_resource_t resource = {};
if (srsran_ra_ul_nr_pucch_resource(&cfg.pucch, &uci_data.cfg, &resource) < SRSRAN_SUCCESS) {
if (srsran_ra_ul_nr_pucch_resource(&cfg.pucch, &uci_data.cfg, cfg.carrier.nof_prb, &resource) < SRSRAN_SUCCESS) {
ERROR("Selecting PUCCH resource");
return false;
}

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