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SRSUE: Fixed HO with carrier aggregation

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master
Xavier Arteaga 6 years ago committed by Andre Puschmann
parent 19572b485c
commit b5685c8f09
7 changed files with 97 additions and 63 deletions
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1
srsue/hdr/phy/phy.h
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@ -155,7 +155,6 @@ private:
phy_common common;
sync sfsync;
scell::async_recv_vector scell_sync;
uint32_t scell_earfcn[SRSLTE_MAX_CARRIERS - 1] = {};
prach prach_buffer;
srslte_prach_cfg_t prach_cfg = {};

6
srsue/hdr/phy/phy_common.h
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@ -78,7 +78,11 @@ public:
uint32_t pcell_report_period;
bool pcell_first_measurement;
/* SCell enable for Activation / Deactivation */
// SCell EARFCN and PCI list
uint32_t scell_earfcn[SRSLTE_MAX_CARRIERS - 1] = {};
uint32_t scell_pci[SRSLTE_MAX_CARRIERS - 1] = {};
// SCell enable for Activation / Deactivation
bool scell_configured[SRSLTE_MAX_CARRIERS];
bool scell_enable[SRSLTE_MAX_CARRIERS]; /* Entry index 0 is reserved, do NOT use it for PCell */
bool multiple_csi_request_enabled; /* True means cross scheduling enabled */

1
srsue/hdr/stack/rrc/rrc.h
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@ -661,6 +661,7 @@ private:
void apply_rr_config_common(asn1::rrc::rr_cfg_common_s* config, bool send_lower_layers);
bool apply_rr_config_dedicated(asn1::rrc::rr_cfg_ded_s* cnfg);
void apply_scell_config(asn1::rrc::rrc_conn_recfg_r8_ies_s* reconfig_r8);
void apply_phy_config_dedicated(const asn1::rrc::phys_cfg_ded_s& phy_cnfg);
void apply_mac_config_dedicated_default();

7
srsue/src/phy/phy.cc
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@ -479,7 +479,7 @@ void phy::set_config_scell(asn1::rrc::scell_to_add_mod_r10_s* scell_config)
scell_sync.at(m->radio_idx - 1)->set_scell_cell(cc_idx, &cell, earfcn);
} else {
// Change frequency only if the earfcn was modified
if (scell_earfcn[cc_idx - 1] != earfcn) {
if (common.scell_earfcn[cc_idx - 1] != earfcn) {
float dl_freq = srslte_band_fd(earfcn) * 1e6f;
float ul_freq = srslte_band_fu(srslte_band_ul_earfcn(earfcn)) * 1e6f;
for (uint32_t p = 0; p < common.args->nof_rx_ant; p++) {
@ -489,8 +489,9 @@ void phy::set_config_scell(asn1::rrc::scell_to_add_mod_r10_s* scell_config)
}
}
// Store SCell earfcn
scell_earfcn[cc_idx - 1] = earfcn;
// Store SCell earfcn and pci
common.scell_earfcn[cc_idx - 1] = earfcn;
common.scell_pci[cc_idx - 1] = cell.id;
// Set SCell as configured
common.scell_configured[cc_idx] = true;

2
srsue/src/phy/phy_common.cc
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@ -896,7 +896,7 @@ bool phy_common::is_mbsfn_sf(srslte_mbsfn_cfg_t* cfg, uint32_t phy_tti)
void phy_common::enable_scell(uint32_t cc_idx, bool enable)
{
if (cc_idx < SRSLTE_MAX_RADIOS) {
if (cc_idx < SRSLTE_MAX_CARRIERS) {
scell_enable[cc_idx] = enable;
}
}

21
srsue/src/phy/sf_worker.cc
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@ -339,12 +339,25 @@ void sf_worker::update_measurements()
// Run measurements in all carriers
for (uint32_t cc_idx = 0; cc_idx < cc_workers.size(); cc_idx++) {
// Update measurement of the Component Carrier
cc_workers[cc_idx]->update_measurements();
}
// Send PCell measurement
if ((tti % phy->pcell_report_period) == phy->pcell_report_period - 1) {
phy->stack->new_phy_meas(phy->avg_rsrp_dbm[0], phy->avg_rsrq_db, tti);
// Send measurements
if ((tti % phy->pcell_report_period) == phy->pcell_report_period - 1) {
if (cc_idx == 0) {
// Send report for PCell
phy->stack->new_phy_meas(phy->avg_rsrp_dbm[0], phy->avg_rsrq_db, tti);
} else {
// Send report for SCell (if it they are enabled)
if (phy->scell_enable[cc_idx]) {
phy->stack->new_phy_meas(phy->avg_rsrp_dbm[cc_idx],
phy->avg_rsrq_db,
tti,
phy->scell_earfcn[cc_idx - 1],
phy->scell_pci[cc_idx - 1]);
}
}
}
}
// Check in-sync / out-sync conditions

122
srsue/src/stack/rrc/rrc.cc
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@ -593,7 +593,11 @@ void rrc::new_phy_meas(float rsrp, float rsrq, uint32_t tti, int earfcn_i, int p
}
phy_meas_t new_meas = {rsrp, rsrq, tti, earfcn, pci};
phy_meas_q.push(new_meas);
rrc_log->info("MEAS: New measurement pci=%d (%s), rsrp=%.1f dBm.\n", pci, pci_i < 0 ? "serving" : "neighbour", rsrp);
rrc_log->info("MEAS: New measurement earfcn=%d, pci=%d (%s), rsrp=%.1f dBm.\n",
earfcn_i,
pci,
pci_i < 0 ? "serving" : "neighbour",
rsrp);
}
/* Processes all pending PHY measurements in queue. Must be called from a mutexed function
@ -1497,6 +1501,9 @@ bool rrc::ho_prepare()
apply_rr_config_dedicated(&mob_reconf_r8->rr_cfg_ded);
}
// Extract and apply scell config if any
apply_scell_config(mob_reconf_r8);
if (!phy->cell_select(&neighbour_cells[target_cell_idx]->phy_cell)) {
rrc_log->error("Could not synchronize with target cell pci=%d. Trying to return to source PCI\n",
neighbour_cells[target_cell_idx]->get_pci());
@ -1609,59 +1616,8 @@ bool rrc::con_reconfig(asn1::rrc::rrc_conn_recfg_s* reconfig)
return false;
}
}
if (reconfig_r8->non_crit_ext_present) {
rrc_conn_recfg_v890_ies_s* reconfig_r890 = &reconfig_r8->non_crit_ext;
if (reconfig_r890->non_crit_ext_present) {
rrc_conn_recfg_v920_ies_s* reconfig_r920 = &reconfig_r890->non_crit_ext;
if (reconfig_r920->non_crit_ext_present) {
rrc_conn_recfg_v1020_ies_s* reconfig_r1020 = &reconfig_r920->non_crit_ext;
// Handle Add/Modify SCell list
if (reconfig_r1020->s_cell_to_add_mod_list_r10_present) {
for (uint32_t i = 0; i < reconfig_r1020->s_cell_to_add_mod_list_r10.size(); i++) {
auto scell_config = &reconfig_r1020->s_cell_to_add_mod_list_r10[i];
// Limit enable64_qam, if the ue does not
// since the phy does not have information about the RRC category and release, the RRC shall limit the
if (scell_config->rr_cfg_common_scell_r10_present) {
// enable64_qam
auto rr_cfg_common_scell = &scell_config->rr_cfg_common_scell_r10;
if (rr_cfg_common_scell->ul_cfg_r10_present) {
auto ul_cfg = &rr_cfg_common_scell->ul_cfg_r10;
auto pusch_cfg_common = &ul_cfg->pusch_cfg_common_r10;
// According to 3GPP 36.331 v12 UE-EUTRA-Capability field descriptions
// Allow 64QAM for:
// ue-Category 5 and 8 when enable64QAM (without suffix)
if (pusch_cfg_common->pusch_cfg_basic.enable64_qam) {
if (args.ue_category != 5 && args.ue_category != 8 && args.ue_category != 13) {
pusch_cfg_common->pusch_cfg_basic.enable64_qam = false;
}
}
}
}
// Call mac reconfiguration
mac->reconfiguration(scell_config->s_cell_idx_r10, true);
// Call phy reconfiguration
phy->set_config_scell(scell_config);
}
}
// Handle Remove SCell list
if (reconfig_r1020->s_cell_to_release_list_r10_present) {
for (uint32_t i = 0; i < reconfig_r1020->s_cell_to_release_list_r10.size(); i++) {
// Call mac reconfiguration
mac->reconfiguration(reconfig_r1020->s_cell_to_release_list_r10[i], false);
// Call phy reconfiguration
// TODO: Implement phy layer cell removal
}
}
}
}
}
apply_scell_config(reconfig_r8);
// If first message after reestablishment, resume SRB2 and all DRB
if (reestablishment_successful) {
@ -3058,6 +3014,66 @@ bool rrc::apply_rr_config_dedicated(rr_cfg_ded_s* cnfg)
return true;
}
/*
* Extracts and applies SCell configuration from an ASN.1 reconfiguration struct
*/
void rrc::apply_scell_config(asn1::rrc::rrc_conn_recfg_r8_ies_s* reconfig_r8)
{
if (reconfig_r8->non_crit_ext_present) {
auto reconfig_r890 = &reconfig_r8->non_crit_ext;
if (reconfig_r890->non_crit_ext_present) {
rrc_conn_recfg_v920_ies_s* reconfig_r920 = &reconfig_r890->non_crit_ext;
if (reconfig_r920->non_crit_ext_present) {
rrc_conn_recfg_v1020_ies_s* reconfig_r1020 = &reconfig_r920->non_crit_ext;
// Handle Add/Modify SCell list
if (reconfig_r1020->s_cell_to_add_mod_list_r10_present) {
for (uint32_t i = 0; i < reconfig_r1020->s_cell_to_add_mod_list_r10.size(); i++) {
auto scell_config = &reconfig_r1020->s_cell_to_add_mod_list_r10[i];
// Limit enable64_qam, if the ue does not
// since the phy does not have information about the RRC category and release, the RRC shall limit the
if (scell_config->rr_cfg_common_scell_r10_present) {
// enable64_qam
auto rr_cfg_common_scell = &scell_config->rr_cfg_common_scell_r10;
if (rr_cfg_common_scell->ul_cfg_r10_present) {
auto ul_cfg = &rr_cfg_common_scell->ul_cfg_r10;
auto pusch_cfg_common = &ul_cfg->pusch_cfg_common_r10;
// According to 3GPP 36.331 v12 UE-EUTRA-Capability field descriptions
// Allow 64QAM for:
// ue-Category 5 and 8 when enable64QAM (without suffix)
if (pusch_cfg_common->pusch_cfg_basic.enable64_qam) {
if (args.ue_category != 5 && args.ue_category != 8 && args.ue_category != 13) {
pusch_cfg_common->pusch_cfg_basic.enable64_qam = false;
}
}
}
}
// Call mac reconfiguration
mac->reconfiguration(scell_config->s_cell_idx_r10, true);
// Call phy reconfiguration
phy->set_config_scell(scell_config);
}
}
// Handle Remove SCell list
if (reconfig_r1020->s_cell_to_release_list_r10_present) {
for (uint32_t i = 0; i < reconfig_r1020->s_cell_to_release_list_r10.size(); i++) {
// Call mac reconfiguration
mac->reconfiguration(reconfig_r1020->s_cell_to_release_list_r10[i], false);
// Call phy reconfiguration
// TODO: Implement phy layer cell removal
}
}
}
}
}
}
void rrc::handle_con_setup(rrc_conn_setup_s* setup)
{
// Apply the Radio Resource configuration

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