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fixed tti resetting after tti end

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master
Francisco Paisana 5 years ago
parent 47b05118ad
commit bb38fa7119
5 changed files with 48 additions and 34 deletions
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13
srsenb/hdr/stack/mac/scheduler_grid.h
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@ -177,6 +177,7 @@ class sf_sched : public dl_sf_sched_itf, public ul_sf_sched_itf
{
public:
struct sf_sched_result {
tti_params_t tti_params{10241};
sched_interface::dl_sched_res_t dl_sched_result;
sched_interface::ul_sched_res_t ul_sched_result;
rbgmask_t dl_mask; ///< Accumulation of all DL RBG allocations
@ -238,7 +239,7 @@ public:
sf_sched();
void init(const sched_cell_params_t& cell_params_);
void new_tti(uint32_t tti_rx_, uint32_t start_cfi);
void reset();
void finish_tti();
// DL alloc methods
alloc_outcome_t alloc_bc(uint32_t aggr_lvl, uint32_t sib_idx, uint32_t sib_ntx);
@ -258,17 +259,17 @@ public:
// dl_tti_sched itf
alloc_outcome_t alloc_dl_user(sched_ue* user, const rbgmask_t& user_mask, uint32_t pid) final;
uint32_t get_tti_tx_dl() const final { return tti_params.tti_tx_dl; }
uint32_t get_tti_tx_dl() const final { return tti_params->tti_tx_dl; }
uint32_t get_nof_ctrl_symbols() const final;
const rbgmask_t& get_dl_mask() const final { return tti_alloc.get_dl_mask(); }
// ul_tti_sched itf
alloc_outcome_t alloc_ul_user(sched_ue* user, ul_harq_proc::ul_alloc_t alloc) final;
const prbmask_t& get_ul_mask() const final { return tti_alloc.get_ul_mask(); }
uint32_t get_tti_tx_ul() const final { return tti_params.tti_tx_ul; }
uint32_t get_tti_tx_ul() const final { return tti_params->tti_tx_ul; }
// getters
uint32_t get_tti_rx() const { return tti_params.tti_rx; }
const tti_params_t& get_tti_params() const { return tti_params; }
uint32_t get_tti_rx() const { return tti_params->tti_rx; }
const tti_params_t& get_tti_params() const { return *tti_params; }
const sf_sched_result& last_sched_result() const { return *last_sf_result; }
@ -301,10 +302,10 @@ private:
std::array<sf_sched_result, 2> sched_result_resources = {};
// Next TTI state
tti_params_t tti_params{10241};
sf_sched_result* current_sf_result = nullptr;
sched_interface::dl_sched_res_t* dl_sched_result = nullptr;
sched_interface::ul_sched_res_t* ul_sched_result = nullptr;
tti_params_t* tti_params = nullptr;
// Last subframe scheduler result
sf_sched_result* last_sf_result = nullptr;

9
srsenb/src/stack/mac/scheduler_carrier.cc
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@ -319,7 +319,7 @@ sf_sched* sched::carrier_sched::generate_tti_result(uint32_t tti_rx)
sf_sched* tti_sched = get_sf_sched(tti_rx);
// if it is the first time tti is run, reset vars
if (tti_rx != tti_sched->get_tti_rx()) {
if (tti_rx != tti_sched->last_sched_result().tti_params.tti_rx) {
uint32_t start_cfi = cc_cfg->sched_cfg->nof_ctrl_symbols;
bool dl_active = sf_dl_mask[tti_sched->get_tti_tx_dl() % sf_dl_mask.size()] == 0;
tti_sched->new_tti(tti_rx, start_cfi);
@ -350,7 +350,7 @@ sf_sched* sched::carrier_sched::generate_tti_result(uint32_t tti_rx)
alloc_ul_users(tti_sched);
}
/* Select the winner DCI allocation combination */
/* Select the winner DCI allocation combination, store all the scheduling results */
tti_sched->generate_sched_results();
/* Enqueue Msg3s derived from allocated RARs */
@ -359,10 +359,13 @@ sf_sched* sched::carrier_sched::generate_tti_result(uint32_t tti_rx)
ra_sched_ptr->sched_msg3(sf_msg3_sched, tti_sched->last_sched_result().dl_sched_result);
}
/* clean-up blocked pids */
/* Reset ue harq pending ack state, clean-up blocked pids */
for (auto& user : *ue_db) {
user.second.finish_tti(tti_sched->get_tti_params(), enb_cc_idx);
}
/* Reset sf_sched tti state */
tti_sched->finish_tti();
}
return tti_sched;

55
srsenb/src/stack/mac/scheduler_grid.cc
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@ -414,11 +414,12 @@ bool sf_grid_t::reserve_ul_prbs(const prbmask_t& prbmask, bool strict)
sf_sched::sf_sched() :
current_sf_result(&sched_result_resources[0]),
dl_sched_result(&sched_result_resources[0].dl_sched_result),
ul_sched_result(&sched_result_resources[0].ul_sched_result),
last_sf_result(&sched_result_resources[1]),
log_h(srslte::logmap::get("MAC "))
{
dl_sched_result = &current_sf_result->dl_sched_result;
ul_sched_result = &current_sf_result->ul_sched_result;
tti_params = &current_sf_result->tti_params;
}
void sf_sched::init(const sched_cell_params_t& cell_params_)
@ -426,26 +427,28 @@ void sf_sched::init(const sched_cell_params_t& cell_params_)
cc_cfg = &cell_params_;
tti_alloc.init(*cc_cfg);
max_msg3_prb = std::max(6u, cc_cfg->cfg.cell.nof_prb - (uint32_t)cc_cfg->cfg.nrb_pucch);
reset();
}
void sf_sched::new_tti(uint32_t tti_rx_, uint32_t start_cfi)
{
tti_params = tti_params_t{tti_rx_};
tti_alloc.new_tti(tti_params, start_cfi);
if (tti_params->tti_rx != tti_rx_) {
if (tti_params->tti_rx < 10240) {
log_h->warning("expected TTI for the given sf_sched does not match current_tti\n");
}
*tti_params = tti_params_t{tti_rx_};
}
tti_alloc.new_tti(*tti_params, start_cfi);
// setup first prb to be used for msg3 alloc. Account for potential PRACH alloc
last_msg3_prb = cc_cfg->cfg.nrb_pucch;
uint32_t tti_msg3_alloc = TTI_ADD(tti_params->tti_tx_ul, MSG3_DELAY_MS);
if (srslte_prach_tti_opportunity_config_fdd(cc_cfg->cfg.prach_config, tti_msg3_alloc, -1)) {
last_msg3_prb = std::max(last_msg3_prb, cc_cfg->cfg.prach_freq_offset + 6);
}
}
void sf_sched::reset()
void sf_sched::finish_tti()
{
/* Store last results */
std::swap(current_sf_result, last_sf_result);
last_sf_result->dl_mask = tti_alloc.get_dl_mask();
last_sf_result->ul_mask = tti_alloc.get_ul_mask();
dl_sched_result = &current_sf_result->dl_sched_result;
ul_sched_result = &current_sf_result->ul_sched_result;
*dl_sched_result = {};
*ul_sched_result = {};
// reset internal state
bc_allocs.clear();
rar_allocs.clear();
@ -453,12 +456,14 @@ void sf_sched::reset()
ul_data_allocs.clear();
tti_alloc.reset();
// setup first prb to be used for msg3 alloc
last_msg3_prb = cc_cfg->cfg.nrb_pucch;
uint32_t tti_msg3_alloc = TTI_ADD(tti_params.tti_tx_ul, MSG3_DELAY_MS);
if (srslte_prach_tti_opportunity_config_fdd(cc_cfg->cfg.prach_config, tti_msg3_alloc, -1)) {
last_msg3_prb = std::max(last_msg3_prb, cc_cfg->cfg.prach_freq_offset + 6);
}
// set new current_sf_result
current_sf_result = &sched_result_resources[(last_sf_result == &sched_result_resources[0]) ? 1 : 0];
dl_sched_result = &current_sf_result->dl_sched_result;
ul_sched_result = &current_sf_result->ul_sched_result;
tti_params = &current_sf_result->tti_params;
*dl_sched_result = {};
*ul_sched_result = {};
*tti_params = tti_params_t{last_sf_result->tti_params.tti_rx + TTIMOD_SZ};
}
bool sf_sched::is_dl_alloc(sched_ue* user) const
@ -685,7 +690,7 @@ bool sf_sched::alloc_phich(sched_ue* user)
}
uint32_t cell_index = p.second;
ul_harq_proc* h = user->get_ul_harq(tti_params.tti_rx, cell_index);
ul_harq_proc* h = user->get_ul_harq(tti_params->tti_tx_ul, cell_index);
/* Indicate PHICH acknowledgment if needed */
if (h->has_pending_ack()) {
@ -969,8 +974,10 @@ void sf_sched::generate_sched_results()
set_ul_sched_result(dci_result);
/* Reset all resources */
reset();
/* Store sf_sched results for this TTI */
last_sf_result = current_sf_result;
last_sf_result->dl_mask = tti_alloc.get_dl_mask();
last_sf_result->ul_mask = tti_alloc.get_ul_mask();
}
uint32_t sf_sched::get_nof_ctrl_symbols() const

2
srsenb/src/stack/mac/scheduler_ue.cc
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@ -951,7 +951,7 @@ void sched_ue::finish_tti(const tti_params_t& tti_params, uint32_t enb_cc_idx)
}
uint32_t ue_cc_idx = p.second;
/* Clean-up all the UL Harqs with maxretx == 0 */
/* Reset pending ACKs and clean-up all the UL Harqs with maxretx == 0 */
get_ul_harq(tti_params.tti_tx_ul, ue_cc_idx)->reset_pending_data();
/* reset PIDs with pending data or blocked */

3
srsenb/test/mac/scheduler_test_rand.cc
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@ -188,6 +188,9 @@ void sched_tester::before_sched()
int sched_tester::process_results()
{
const auto* sf_sched = carrier_schedulers[CARRIER_IDX]->get_sf_sched_ptr(tti_info.tti_params.tti_rx);
TESTASSERT(tti_info.tti_params.tti_rx == sf_sched->last_sched_result().tti_params.tti_rx);
test_pdcch_collisions();
TESTASSERT(ue_tester->test_all(0, tti_info.dl_sched_result[CARRIER_IDX], tti_info.ul_sched_result[CARRIER_IDX]) ==
SRSLTE_SUCCESS);

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