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extended cc_sched_ue fsm to account for more harmonious transition of an scell to deactivated state

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master
Francisco Paisana 4 years ago
parent 74c18ecf6c
commit a761762ec8
7 changed files with 115 additions and 87 deletions
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2
srsenb/hdr/stack/mac/scheduler_harq.h
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@ -156,7 +156,7 @@ public:
std::pair<bool, uint32_t> set_ul_crc(srslte::tti_point tti_tx_ul, uint32_t tb_idx, bool ack_);
//! Resets pending harq ACKs and cleans UL Harqs with maxretx == 0
void reset_pending_data(uint32_t tti_rx);
void reset_pending_data(srslte::tti_point tti_rx);
private:
dl_harq_proc* get_oldest_dl_harq(uint32_t tti_tx_dl);

18
srsenb/hdr/stack/mac/scheduler_ue.h
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@ -34,6 +34,7 @@
namespace srsenb {
typedef enum { UCI_PUSCH_NONE = 0, UCI_PUSCH_CQI, UCI_PUSCH_ACK, UCI_PUSCH_ACK_CQI } uci_pusch_t;
enum class cc_st { active, idle, activating, deactivating };
struct cc_sched_ue {
const static int SCHED_MAX_HARQ_PROC = FDD_HARQ_DELAY_UL_MS + FDD_HARQ_DELAY_DL_MS;
@ -41,9 +42,11 @@ struct cc_sched_ue {
cc_sched_ue(const sched_interface::ue_cfg_t& cfg_,
const sched_cell_params_t& cell_cfg_,
uint16_t rnti_,
uint32_t ue_cc_idx);
uint32_t ue_cc_idx,
srslte::tti_point current_tti);
void reset();
void set_cfg(const sched_interface::ue_cfg_t& cfg); ///< reconfigure ue carrier
void finish_tti(srslte::tti_point tti_rx);
uint32_t get_aggr_level(uint32_t nof_bits);
int alloc_tbs(uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, bool is_ul, int* mcs);
@ -52,9 +55,9 @@ struct cc_sched_ue {
int get_required_prb_dl(uint32_t req_bytes, uint32_t nof_ctrl_symbols);
uint32_t get_required_prb_ul(uint32_t req_bytes);
const sched_cell_params_t* get_cell_cfg() const { return cell_params; }
bool is_active() const { return active; }
void set_dl_cqi(uint32_t tti_tx_dl, uint32_t dl_cqi);
int cqi_to_tbs(uint32_t nof_prb, uint32_t nof_re, bool use_tbs_index_alt, bool is_ul, uint32_t* mcs);
cc_st cc_state() const { return cc_state_; }
harq_entity harq_ent;
@ -85,7 +88,11 @@ private:
const sched_cell_params_t* cell_params = nullptr;
uint16_t rnti;
uint32_t ue_cc_idx = 0;
bool active = false;
srslte::tti_point cfg_tti;
// state
srslte::tti_point last_tti;
cc_st cc_state_ = cc_st::idle;
};
const char* to_string(sched_interface::ue_bearer_cfg_t::direction_t dir);
@ -167,7 +174,7 @@ public:
const dl_harq_proc& get_dl_harq(uint32_t idx, uint32_t cc_idx) const;
uint16_t get_rnti() const { return rnti; }
std::pair<bool, uint32_t> get_cell_index(uint32_t enb_cc_idx) const;
std::pair<bool, uint32_t> get_active_cell_index(uint32_t enb_cc_idx) const;
const sched_interface::ue_cfg_t& get_ue_cfg() const { return cfg; }
uint32_t get_aggr_level(uint32_t ue_cc_idx, uint32_t nof_bits);
void ul_buffer_add(uint8_t lcid, uint32_t bytes);
@ -219,7 +226,7 @@ public:
srslte_dci_format_t get_dci_format();
sched_dci_cce_t* get_locations(uint32_t enb_cc_idx, uint32_t current_cfi, uint32_t sf_idx);
cc_sched_ue* get_ue_carrier(uint32_t enb_cc_idx);
cc_sched_ue* find_ue_carrier(uint32_t enb_cc_idx);
bool needs_cqi(uint32_t tti, uint32_t cc_idx, bool will_send = false);
uint32_t get_max_retx();
@ -291,6 +298,7 @@ private:
bool phy_config_dedicated_enabled = false;
srslte::tti_point last_tti;
std::vector<cc_sched_ue> carriers; ///< map of UE CellIndex to carrier configuration
// Control Element Command queue

2
srsenb/src/stack/mac/scheduler.cc
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@ -363,7 +363,7 @@ std::array<int, SRSLTE_MAX_CARRIERS> sched::get_enb_ue_cc_map(uint16_t rnti)
ue_db_access(rnti,
[this, &ret](sched_ue& ue) {
for (size_t enb_cc_idx = 0; enb_cc_idx < carrier_schedulers.size(); ++enb_cc_idx) {
auto p = ue.get_cell_index(enb_cc_idx);
auto p = ue.get_active_cell_index(enb_cc_idx);
if (p.second < SRSLTE_MAX_CARRIERS) {
ret[enb_cc_idx] = p.second;
}

22
srsenb/src/stack/mac/scheduler_grid.cc
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@ -470,7 +470,7 @@ alloc_outcome_t sf_grid_t::alloc_dl_data(sched_ue* user, const rbgmask_t& user_m
{
srslte_dci_format_t dci_format = user->get_dci_format();
uint32_t nof_bits = srslte_dci_format_sizeof(&cc_cfg->cfg.cell, nullptr, nullptr, dci_format);
uint32_t aggr_idx = user->get_ue_carrier(cc_cfg->enb_cc_idx)->get_aggr_level(nof_bits);
uint32_t aggr_idx = user->find_ue_carrier(cc_cfg->enb_cc_idx)->get_aggr_level(nof_bits);
alloc_outcome_t ret = alloc_dl(aggr_idx, alloc_type_t::DL_DATA, user_mask, user);
return ret;
@ -491,7 +491,7 @@ alloc_outcome_t sf_grid_t::alloc_ul_data(sched_ue* user, prb_interval alloc, boo
// Generate PDCCH except for RAR and non-adaptive retx
if (needs_pdcch) {
uint32_t nof_bits = srslte_dci_format_sizeof(&cc_cfg->cfg.cell, nullptr, nullptr, SRSLTE_DCI_FORMAT0);
uint32_t aggr_idx = user->get_ue_carrier(cc_cfg->enb_cc_idx)->get_aggr_level(nof_bits);
uint32_t aggr_idx = user->find_ue_carrier(cc_cfg->enb_cc_idx)->get_aggr_level(nof_bits);
if (not pdcch_alloc.alloc_dci(alloc_type_t::UL_DATA, aggr_idx, user)) {
if (log_h->get_level() == srslte::LOG_LEVEL_DEBUG) {
log_h->debug("No space in PDCCH for rnti=0x%x UL tx. Current PDCCH allocation: %s\n",
@ -770,7 +770,7 @@ alloc_outcome_t sf_sched::alloc_dl_user(sched_ue* user, const rbgmask_t& user_ma
}
// Check if allocation would cause segmentation
uint32_t ue_cc_idx = user->get_cell_index(cc_cfg->enb_cc_idx).second;
uint32_t ue_cc_idx = user->get_active_cell_index(cc_cfg->enb_cc_idx).second;
const dl_harq_proc& h = user->get_dl_harq(pid, ue_cc_idx);
if (h.is_empty()) {
// It is newTx
@ -845,7 +845,7 @@ alloc_outcome_t sf_sched::alloc_ul_user(sched_ue* user, prb_interval alloc)
{
// check whether adaptive/non-adaptive retx/newtx
ul_alloc_t::type_t alloc_type;
ul_harq_proc* h = user->get_ul_harq(get_tti_tx_ul(), user->get_cell_index(cc_cfg->enb_cc_idx).second);
ul_harq_proc* h = user->get_ul_harq(get_tti_tx_ul(), user->get_active_cell_index(cc_cfg->enb_cc_idx).second);
bool has_retx = h->has_pending_retx();
if (has_retx) {
prb_interval prev_alloc = h->get_alloc();
@ -866,7 +866,7 @@ bool sf_sched::alloc_phich(sched_ue* user, sched_interface::ul_sched_res_t* ul_s
using phich_t = sched_interface::ul_sched_phich_t;
auto& phich_list = ul_sf_result->phich[ul_sf_result->nof_phich_elems];
auto p = user->get_cell_index(cc_cfg->enb_cc_idx);
auto p = user->get_active_cell_index(cc_cfg->enb_cc_idx);
if (not p.first) {
// user does not support this carrier
return false;
@ -1012,7 +1012,7 @@ void sf_sched::set_dl_data_sched_result(const pdcch_grid_t::alloc_result_t& dci_
// Generate DCI Format1/2/2A
sched_ue* user = data_alloc.user_ptr;
uint32_t cell_index = user->get_cell_index(cc_cfg->enb_cc_idx).second;
uint32_t cell_index = user->get_active_cell_index(cc_cfg->enb_cc_idx).second;
uint32_t data_before = user->get_pending_dl_new_data();
const dl_harq_proc& dl_harq = user->get_dl_harq(data_alloc.pid, cell_index);
bool is_newtx = dl_harq.is_empty();
@ -1057,7 +1057,7 @@ uci_pusch_t is_uci_included(const sf_sched* sf_sched,
{
uci_pusch_t uci_alloc = UCI_PUSCH_NONE;
if (not user->get_cell_index(current_enb_cc_idx).first) {
if (not user->get_active_cell_index(current_enb_cc_idx).first) {
return UCI_PUSCH_NONE;
}
@ -1065,7 +1065,7 @@ uci_pusch_t is_uci_included(const sf_sched* sf_sched,
const sched_interface::ue_cfg_t& ue_cfg = user->get_ue_cfg();
for (uint32_t enbccidx = 0; enbccidx < other_cc_results.enb_cc_list.size() and uci_alloc != UCI_PUSCH_ACK_CQI;
++enbccidx) {
auto p = user->get_cell_index(enbccidx);
auto p = user->get_active_cell_index(enbccidx);
if (not p.first) {
continue;
}
@ -1111,7 +1111,7 @@ uci_pusch_t is_uci_included(const sf_sched* sf_sched,
uint32_t ue_cc_idx = other_cc_results.enb_cc_list.size();
int sel_enb_cc_idx = -1;
if (sf_sched->is_ul_alloc(user)) {
ue_cc_idx = user->get_cell_index(current_enb_cc_idx).second;
ue_cc_idx = user->get_active_cell_index(current_enb_cc_idx).second;
sel_enb_cc_idx = current_enb_cc_idx;
}
@ -1119,7 +1119,7 @@ uci_pusch_t is_uci_included(const sf_sched* sf_sched,
for (uint32_t j = 0; j < other_cc_results.enb_cc_list[enbccidx].ul_sched_result.nof_dci_elems; ++j) {
// Checks all the UL grants already allocated for the given rnti
if (other_cc_results.enb_cc_list[enbccidx].ul_sched_result.pusch[j].dci.rnti == user->get_rnti()) {
auto p = user->get_cell_index(enbccidx);
auto p = user->get_active_cell_index(enbccidx);
// If the UE CC Idx is the lowest so far
if (p.first and p.second < ue_cc_idx) {
ue_cc_idx = p.second;
@ -1143,7 +1143,7 @@ void sf_sched::set_ul_sched_result(const pdcch_grid_t::alloc_result_t& dci_resul
sched_interface::ul_sched_data_t* pusch = &ul_result->pusch[ul_result->nof_dci_elems];
sched_ue* user = ul_alloc.user_ptr;
uint32_t cell_index = user->get_cell_index(cc_cfg->enb_cc_idx).second;
uint32_t cell_index = user->get_active_cell_index(cc_cfg->enb_cc_idx).second;
srslte_dci_location_t cce_range = {0, 0};
if (ul_alloc.needs_pdcch()) {

6
srsenb/src/stack/mac/scheduler_harq.cc
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@ -380,10 +380,10 @@ std::pair<bool, uint32_t> harq_entity::set_ul_crc(srslte::tti_point tti_rx, uint
return {h->set_ack(tb_idx, ack_), pid};
}
void harq_entity::reset_pending_data(uint32_t tti_rx)
void harq_entity::reset_pending_data(srslte::tti_point tti_rx)
{
tti_point tti_tx_ul = srslte::to_tx_ul(tti_point{tti_rx});
tti_point tti_tx_dl = srslte::to_tx_dl(tti_point{tti_rx});
tti_point tti_tx_ul = srslte::to_tx_ul(tti_rx);
tti_point tti_tx_dl = srslte::to_tx_dl(tti_rx);
// Reset ACK state of UL Harq
get_ul_harq(tti_tx_ul.to_uint())->reset_pending_data();

6
srsenb/src/stack/mac/scheduler_metric.cc
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@ -89,7 +89,7 @@ dl_harq_proc* dl_metric_rr::allocate_user(sched_ue* user)
return nullptr;
}
// Do not allocate a user to an inactive carrier
auto p = user->get_cell_index(cc_cfg->enb_cc_idx);
auto p = user->get_active_cell_index(cc_cfg->enb_cc_idx);
if (not p.first) {
return nullptr;
}
@ -238,7 +238,7 @@ ul_harq_proc* ul_metric_rr::allocate_user_retx_prbs(sched_ue* user)
if (tti_alloc->is_ul_alloc(user)) {
return nullptr;
}
auto p = user->get_cell_index(cc_cfg->enb_cc_idx);
auto p = user->get_active_cell_index(cc_cfg->enb_cc_idx);
if (not p.first) {
// this cc is not activated for this user
return nullptr;
@ -280,7 +280,7 @@ ul_harq_proc* ul_metric_rr::allocate_user_newtx_prbs(sched_ue* user)
if (tti_alloc->is_ul_alloc(user)) {
return nullptr;
}
auto p = user->get_cell_index(cc_cfg->enb_cc_idx);
auto p = user->get_active_cell_index(cc_cfg->enb_cc_idx);
if (not p.first) {
// this cc is not activated for this user
return nullptr;

138
srsenb/src/stack/mac/scheduler_ue.cc
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@ -28,9 +28,7 @@
#include "srslte/mac/pdu.h"
#include "srslte/srslte.h"
/******************************************************
* UE class *
******************************************************/
using srslte::tti_point;
namespace srsenb {
@ -138,10 +136,10 @@ void sched_ue::set_cfg(const sched_interface::ue_cfg_t& cfg_)
if (ue_idx >= prev_supported_cc_list.size()) {
// New carrier needs to be added
carriers.emplace_back(cfg, (*cell_params_list)[cc_cfg.enb_cc_idx], rnti, ue_idx);
carriers.emplace_back(cfg, (*cell_params_list)[cc_cfg.enb_cc_idx], rnti, ue_idx, last_tti);
} else if (cc_cfg.enb_cc_idx != prev_supported_cc_list[ue_idx].enb_cc_idx) {
// One carrier was added in the place of another
carriers[ue_idx] = cc_sched_ue{cfg, (*cell_params_list)[cc_cfg.enb_cc_idx], rnti, ue_idx};
carriers[ue_idx] = cc_sched_ue{cfg, (*cell_params_list)[cc_cfg.enb_cc_idx], rnti, ue_idx, last_tti};
if (ue_idx == 0) {
log_h->info("SCHED: rnti=0x%x PCell is now enb_cc_idx=%d.\n", rnti, cc_cfg.enb_cc_idx);
}
@ -149,7 +147,8 @@ void sched_ue::set_cfg(const sched_interface::ue_cfg_t& cfg_)
// The SCell internal configuration may have changed
carriers[ue_idx].set_cfg(cfg);
}
scell_activation_state_changed |= carriers[ue_idx].is_active() != cc_cfg.active and ue_idx > 0;
scell_activation_state_changed |= ue_idx > 0 and (carriers[ue_idx].cc_state() == cc_st::activating or
carriers[ue_idx].cc_state() == cc_st::deactivating);
}
if (scell_activation_state_changed) {
pending_ces.emplace_back(srslte::dl_sch_lcid::SCELL_ACTIVATION);
@ -256,9 +255,9 @@ bool sched_ue::pucch_sr_collision(uint32_t current_tti, uint32_t n_cce)
int sched_ue::set_ack_info(uint32_t tti_rx, uint32_t enb_cc_idx, uint32_t tb_idx, bool ack)
{
int tbs_acked = -1;
auto p = get_cell_index(enb_cc_idx);
if (p.first) {
std::pair<uint32_t, int> p2 = carriers[p.second].harq_ent.set_ack_info(tti_rx, tb_idx, ack);
cc_sched_ue* c = find_ue_carrier(enb_cc_idx);
if (c != nullptr and c->cc_state() != cc_st::idle) {
std::pair<uint32_t, int> p2 = c->harq_ent.set_ack_info(tti_rx, tb_idx, ack);
tbs_acked = p2.second;
if (tbs_acked > 0) {
Debug("SCHED: Set DL ACK=%d for rnti=0x%x, pid=%d, tb=%d, tti=%d\n", ack, rnti, p2.first, tb_idx, tti_rx);
@ -273,9 +272,9 @@ int sched_ue::set_ack_info(uint32_t tti_rx, uint32_t enb_cc_idx, uint32_t tb_idx
void sched_ue::set_ul_crc(srslte::tti_point tti_rx, uint32_t enb_cc_idx, bool crc_res)
{
auto p = get_cell_index(enb_cc_idx);
if (p.first) {
auto ret = carriers[p.second].harq_ent.set_ul_crc(tti_rx, 0, crc_res);
cc_sched_ue* c = find_ue_carrier(enb_cc_idx);
if (c != nullptr and c->cc_state() != cc_st::idle) {
auto ret = c->harq_ent.set_ul_crc(tti_rx, 0, crc_res);
if (not ret.first) {
log_h->warning("Received UL CRC for invalid tti_rx=%d\n", (int)tti_rx.to_uint());
}
@ -286,10 +285,10 @@ void sched_ue::set_ul_crc(srslte::tti_point tti_rx, uint32_t enb_cc_idx, bool cr
void sched_ue::set_dl_ri(uint32_t tti, uint32_t enb_cc_idx, uint32_t ri)
{
auto p = get_cell_index(enb_cc_idx);
if (p.first) {
carriers[p.second].dl_ri = ri;
carriers[p.second].dl_ri_tti = tti;
cc_sched_ue* c = find_ue_carrier(enb_cc_idx);
if (c != nullptr and c->cc_state() != cc_st::idle) {
c->dl_ri = ri;
c->dl_ri_tti = tti;
} else {
log_h->warning("Received DL RI for invalid cell index %d\n", enb_cc_idx);
}
@ -297,10 +296,10 @@ void sched_ue::set_dl_ri(uint32_t tti, uint32_t enb_cc_idx, uint32_t ri)
void sched_ue::set_dl_pmi(uint32_t tti, uint32_t enb_cc_idx, uint32_t pmi)
{
auto p = get_cell_index(enb_cc_idx);
if (p.first) {
carriers[p.second].dl_pmi = pmi;
carriers[p.second].dl_pmi_tti = tti;
cc_sched_ue* c = find_ue_carrier(enb_cc_idx);
if (c != nullptr and c->cc_state() != cc_st::idle) {
c->dl_pmi = pmi;
c->dl_pmi_tti = tti;
} else {
log_h->warning("Received DL PMI for invalid cell index %d\n", enb_cc_idx);
}
@ -308,20 +307,20 @@ void sched_ue::set_dl_pmi(uint32_t tti, uint32_t enb_cc_idx, uint32_t pmi)
void sched_ue::set_dl_cqi(uint32_t tti, uint32_t enb_cc_idx, uint32_t cqi)
{
auto p = get_cell_index(enb_cc_idx);
if (p.second != std::numeric_limits<uint32_t>::max()) {
carriers[p.second].set_dl_cqi(tti, cqi);
cc_sched_ue* c = find_ue_carrier(enb_cc_idx);
if (c != nullptr and c->cc_state() != cc_st::idle) {
c->set_dl_cqi(tti, cqi);
} else {
log_h->warning("Received DL CQI for invalid cell index %d\n", enb_cc_idx);
log_h->warning("Received DL CQI for invalid enb cell index %d\n", enb_cc_idx);
}
}
void sched_ue::set_ul_cqi(uint32_t tti, uint32_t enb_cc_idx, uint32_t cqi, uint32_t ul_ch_code)
{
auto p = get_cell_index(enb_cc_idx);
if (p.first) {
carriers[p.second].ul_cqi = cqi;
carriers[p.second].ul_cqi_tti = tti;
cc_sched_ue* c = find_ue_carrier(enb_cc_idx);
if (c != nullptr and c->cc_state() != cc_st::idle) {
c->ul_cqi = cqi;
c->ul_cqi_tti = tti;
} else {
log_h->warning("Received SNR info for invalid cell index %d\n", enb_cc_idx);
}
@ -909,7 +908,7 @@ srslte::interval<uint32_t> sched_ue::get_requested_dl_bytes(uint32_t ue_cc_idx)
log_h->error("SRB0 must always be activated for DL\n");
return {};
}
if (not carriers[ue_cc_idx].is_active()) {
if (carriers[ue_cc_idx].cc_state() != cc_st::active) {
return {};
}
@ -961,7 +960,8 @@ srslte::interval<uint32_t> sched_ue::get_requested_dl_bytes(uint32_t ue_cc_idx)
*/
uint32_t sched_ue::get_pending_dl_new_data()
{
if (std::count_if(carriers.begin(), carriers.end(), [](const cc_sched_ue& cc) { return cc.is_active(); }) == 0) {
if (std::none_of(
carriers.begin(), carriers.end(), [](const cc_sched_ue& cc) { return cc.cc_state() == cc_st::active; })) {
return 0;
}
@ -1008,7 +1008,7 @@ uint32_t sched_ue::get_pending_ul_new_data(uint32_t tti, int this_ue_cc_idx)
uint32_t max_cqi = 0, max_cc_idx = 0;
for (uint32_t cc_idx = 0; cc_idx < carriers.size(); ++cc_idx) {
uint32_t sum_cqi = carriers[cc_idx].dl_cqi + carriers[cc_idx].ul_cqi;
if (carriers[cc_idx].is_active() and sum_cqi > max_cqi) {
if (carriers[cc_idx].cc_state() == cc_st::active and sum_cqi > max_cqi) {
max_cqi = sum_cqi;
max_cc_idx = cc_idx;
}
@ -1063,7 +1063,7 @@ bool sched_ue::is_sr_triggered()
/* Gets HARQ process with oldest pending retx */
dl_harq_proc* sched_ue::get_pending_dl_harq(uint32_t tti_tx_dl, uint32_t ue_cc_idx)
{
if (ue_cc_idx < carriers.size() and carriers[ue_cc_idx].is_active()) {
if (ue_cc_idx < carriers.size() and carriers[ue_cc_idx].cc_state() == cc_st::active) {
return carriers[ue_cc_idx].harq_ent.get_pending_dl_harq(tti_tx_dl);
}
return nullptr;
@ -1071,7 +1071,7 @@ dl_harq_proc* sched_ue::get_pending_dl_harq(uint32_t tti_tx_dl, uint32_t ue_cc_i
dl_harq_proc* sched_ue::get_empty_dl_harq(uint32_t tti_tx_dl, uint32_t ue_cc_idx)
{
if (ue_cc_idx < carriers.size() and carriers[ue_cc_idx].is_active()) {
if (ue_cc_idx < carriers.size() and carriers[ue_cc_idx].cc_state() == cc_st::active) {
return carriers[ue_cc_idx].harq_ent.get_empty_dl_harq(tti_tx_dl);
}
return nullptr;
@ -1079,7 +1079,7 @@ dl_harq_proc* sched_ue::get_empty_dl_harq(uint32_t tti_tx_dl, uint32_t ue_cc_idx
ul_harq_proc* sched_ue::get_ul_harq(uint32_t tti_tx_ul, uint32_t ue_cc_idx)
{
if (ue_cc_idx < carriers.size() and carriers[ue_cc_idx].is_active()) {
if (ue_cc_idx < carriers.size() and carriers[ue_cc_idx].cc_state() == cc_st::active) {
return carriers[ue_cc_idx].harq_ent.get_ul_harq(tti_tx_ul);
}
return nullptr;
@ -1090,7 +1090,7 @@ const dl_harq_proc& sched_ue::get_dl_harq(uint32_t idx, uint32_t ue_cc_idx) cons
return carriers[ue_cc_idx].harq_ent.dl_harq_procs()[idx];
}
std::pair<bool, uint32_t> sched_ue::get_cell_index(uint32_t enb_cc_idx) const
std::pair<bool, uint32_t> sched_ue::get_active_cell_index(uint32_t enb_cc_idx) const
{
auto it = std::find_if(
cfg.supported_cc_list.begin(),
@ -1098,7 +1098,7 @@ std::pair<bool, uint32_t> sched_ue::get_cell_index(uint32_t enb_cc_idx) const
[enb_cc_idx](const sched_interface::ue_cfg_t::cc_cfg_t& u) { return u.enb_cc_idx == enb_cc_idx and u.active; });
if (it != cfg.supported_cc_list.end()) {
uint32_t ue_cc_idx = std::distance(cfg.supported_cc_list.begin(), it);
return {carriers[ue_cc_idx].is_active(), ue_cc_idx};
return {carriers[ue_cc_idx].cc_state() == cc_st::active, ue_cc_idx};
}
return {false, std::numeric_limits<uint32_t>::max()};
}
@ -1110,14 +1110,13 @@ uint32_t sched_ue::get_aggr_level(uint32_t ue_cc_idx, uint32_t nof_bits)
void sched_ue::finish_tti(const tti_params_t& tti_params, uint32_t enb_cc_idx)
{
auto p = get_cell_index(enb_cc_idx);
if (not p.first) {
return;
}
uint32_t ue_cc_idx = p.second;
last_tti = tti_point{tti_params.tti_rx};
cc_sched_ue* c = find_ue_carrier(enb_cc_idx);
/* reset PIDs with pending data or blocked */
carriers[ue_cc_idx].harq_ent.reset_pending_data(tti_params.tti_rx);
if (c != nullptr) {
// Check that scell state needs to change
c->finish_tti(last_tti);
}
}
srslte_dci_format_t sched_ue::get_dci_format()
@ -1152,20 +1151,19 @@ srslte_dci_format_t sched_ue::get_dci_format()
sched_dci_cce_t* sched_ue::get_locations(uint32_t enb_cc_idx, uint32_t cfi, uint32_t sf_idx)
{
if (cfi > 0 && cfi <= 3) {
return &carriers[get_cell_index(enb_cc_idx).second].dci_locations[cfi - 1][sf_idx];
return &carriers[get_active_cell_index(enb_cc_idx).second].dci_locations[cfi - 1][sf_idx];
} else {
Error("SCHED: Invalid CFI=%d\n", cfi);
return &carriers[get_cell_index(enb_cc_idx).second].dci_locations[0][sf_idx];
return &carriers[get_active_cell_index(enb_cc_idx).second].dci_locations[0][sf_idx];
}
}
cc_sched_ue* sched_ue::get_ue_carrier(uint32_t enb_cc_idx)
cc_sched_ue* sched_ue::find_ue_carrier(uint32_t enb_cc_idx)
{
auto p = get_cell_index(enb_cc_idx);
if (not p.first) {
return nullptr;
}
return &carriers[p.second];
auto it = std::find_if(carriers.begin(), carriers.end(), [enb_cc_idx](const cc_sched_ue& c) {
return c.get_cell_cfg()->enb_cc_idx == enb_cc_idx;
});
return it != carriers.end() ? &(*it) : nullptr;
}
int cc_sched_ue::cqi_to_tbs(uint32_t nof_prb, uint32_t nof_re, bool use_tbs_index_alt, bool is_ul, uint32_t* mcs)
@ -1209,15 +1207,18 @@ int cc_sched_ue::cqi_to_tbs(uint32_t nof_prb, uint32_t nof_re, bool use_tbs_inde
cc_sched_ue::cc_sched_ue(const sched_interface::ue_cfg_t& cfg_,
const sched_cell_params_t& cell_cfg_,
uint16_t rnti_,
uint32_t ue_cc_idx_) :
uint32_t ue_cc_idx_,
tti_point current_tti) :
cell_params(&cell_cfg_),
rnti(rnti_),
log_h(srslte::logmap::get("MAC ")),
ue_cc_idx(ue_cc_idx_),
last_tti(current_tti),
harq_ent(SCHED_MAX_HARQ_PROC, SCHED_MAX_HARQ_PROC)
{
// only PCell starts active. Remaining ones wait for valid CQI
active = ue_cc_idx == 0;
cc_state_ =
ue_cc_idx == 0 ? cc_st::active : (cfg_.supported_cc_list[ue_cc_idx].active ? cc_st::activating : cc_st::idle);
dl_cqi_rx = false;
dl_cqi = (ue_cc_idx == 0) ? cell_params->cfg.initial_dl_cqi : 0;
@ -1258,16 +1259,35 @@ void cc_sched_ue::reset()
void cc_sched_ue::set_cfg(const sched_interface::ue_cfg_t& cfg_)
{
cfg = &cfg_;
cfg_tti = last_tti;
// Config HARQ processes
harq_ent.set_cfg(cfg->maxharq_tx);
// Handle deactivation
if (ue_cc_idx > 0 and not cfg_.supported_cc_list[ue_cc_idx].active and active) {
active = false;
reset();
if (ue_cc_idx > 0 and not cfg->supported_cc_list[ue_cc_idx].active) {
if (cc_state_ == cc_st::active or cc_state_ == cc_st::activating) {
cc_state_ = cc_st::deactivating;
log_h->info("SCHED: rnti=0x%x SCellIndex=%d deactivated\n", rnti, ue_cc_idx);
}
}
}
void cc_sched_ue::finish_tti(srslte::tti_point tti_rx)
{
last_tti = tti_point{tti_rx};
// reset PIDs with pending data or blocked
harq_ent.reset_pending_data(last_tti);
// Check if cell state needs to be updated
if (ue_cc_idx > 0 and cc_state_ == cc_st::deactivating) {
// wait for all ACKs to be received before completely deactivating SCell
if (last_tti > srslte::to_tx_dl_ack(cfg_tti)) {
cc_state_ = cc_st::idle;
reset();
}
}
}
/* Find lowest DCI aggregation level supported by the UE spectral efficiency */
@ -1411,10 +1431,10 @@ void cc_sched_ue::set_dl_cqi(uint32_t tti_tx_dl, uint32_t dl_cqi_)
dl_cqi = dl_cqi_;
dl_cqi_tti = tti_tx_dl;
dl_cqi_rx = dl_cqi_rx or dl_cqi > 0;
if (ue_cc_idx > 0 and active != cfg->supported_cc_list[ue_cc_idx].active) {
if (ue_cc_idx > 0 and cc_state_ == cc_st::activating) {
if (dl_cqi_rx) {
active = cfg->supported_cc_list[ue_cc_idx].active;
log_h->info("SCHED: SCell index=%d is now %s\n", ue_cc_idx, active ? "active" : "inactive");
cc_state_ = cc_st::active;
log_h->info("SCHED: SCell index=%d is now active\n", ue_cc_idx);
}
}
}

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