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enb: use circular array to access TTI and HARQ based data structures

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this makes use of the new circular array to remove the need
to apply the modulo operation when safely accessing the underlying
array.
master
Andre Puschmann 4 years ago committed by faluco
parent e80aa0a553
commit 87d4a5dc9c
2 changed files with 12 additions and 10 deletions
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8
srsenb/hdr/phy/phy_ue_db.h
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@ -25,6 +25,7 @@
#include "phy_interfaces.h" #include "phy_interfaces.h"
#include <map> #include <map>
#include <mutex> #include <mutex>
#include <srslte/common/circular_array.h>
#include <srslte/interfaces/enb_interfaces.h> #include <srslte/interfaces/enb_interfaces.h>
#include <srslte/srslte.h> #include <srslte/srslte.h>
@ -84,16 +85,17 @@ private:
cell_state_t state = cell_state_none; ///< Configuration state cell_state_t state = cell_state_none; ///< Configuration state
uint32_t enb_cc_idx = 0; ///< Corresponding eNb cell/carrier index uint32_t enb_cc_idx = 0; ///< Corresponding eNb cell/carrier index
uint8_t last_ri = 0; ///< Last reported rank indicator uint8_t last_ri = 0; ///< Last reported rank indicator
std::array<srslte_ra_tb_t, SRSLTE_MAX_HARQ_PROC> last_tb = {}; ///< Stores last PUSCH Resource allocation srslte::circular_array<srslte_ra_tb_t, SRSLTE_MAX_HARQ_PROC> last_tb =
{}; ///< Stores last PUSCH Resource allocation
srslte::phy_cfg_t phy_cfg; ///< Configuration, it has a default constructor srslte::phy_cfg_t phy_cfg; ///< Configuration, it has a default constructor
std::array<bool, TTIMOD_SZ> is_grant_available; ///< Indicates whether there is an available grant srslte::circular_array<bool, TTIMOD_SZ> is_grant_available; ///< Indicates whether there is an available grant
} cell_info_t; } cell_info_t;
/** /**
* UE object stored in the PHY common database * UE object stored in the PHY common database
*/ */
struct common_ue { struct common_ue {
std::array<srslte_pdsch_ack_t, TTIMOD_SZ> pdsch_ack = {}; ///< Pending acknowledgements for this Cell srslte::circular_array<srslte_pdsch_ack_t, TTIMOD_SZ> pdsch_ack = {}; ///< Pending acknowledgements for this Cell
std::array<cell_info_t, SRSLTE_MAX_CARRIERS> cell_info = {}; ///< Cell information, indexed by ue_cell_idx std::array<cell_info_t, SRSLTE_MAX_CARRIERS> cell_info = {}; ///< Cell information, indexed by ue_cell_idx
srslte::phy_cfg_t pcell_cfg_stash = {}; ///< Stashed Cell information srslte::phy_cfg_t pcell_cfg_stash = {}; ///< Stashed Cell information
}; };

10
srsenb/src/phy/phy_ue_db.cc
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@ -125,7 +125,7 @@ uint32_t phy_ue_db::_get_uci_enb_cc_idx(uint32_t tti, uint16_t rnti) const
{ {
// Find the lowest index available PUSCH grant // Find the lowest index available PUSCH grant
for (const cell_info_t& cell_info : ue_db.at(rnti).cell_info) { for (const cell_info_t& cell_info : ue_db.at(rnti).cell_info) {
if (cell_info.is_grant_available[TTIMOD(tti)]) { if (cell_info.is_grant_available[tti]) {
return cell_info.enb_cc_idx; return cell_info.enb_cc_idx;
} }
} }
@ -657,7 +657,7 @@ void phy_ue_db::set_last_ul_tb(uint16_t rnti, uint32_t enb_cc_idx, uint32_t pid,
} }
// Save resource allocation // Save resource allocation
ue_db.at(rnti).cell_info[_get_ue_cc_idx(rnti, enb_cc_idx)].last_tb[pid % SRSLTE_FDD_NOF_HARQ] = tb; ue_db.at(rnti).cell_info[_get_ue_cc_idx(rnti, enb_cc_idx)].last_tb[pid] = tb;
} }
srslte_ra_tb_t phy_ue_db::get_last_ul_tb(uint16_t rnti, uint32_t enb_cc_idx, uint32_t pid) const srslte_ra_tb_t phy_ue_db::get_last_ul_tb(uint16_t rnti, uint32_t enb_cc_idx, uint32_t pid) const
@ -670,7 +670,7 @@ srslte_ra_tb_t phy_ue_db::get_last_ul_tb(uint16_t rnti, uint32_t enb_cc_idx, uin
} }
// Returns the latest stored UL transmission grant // Returns the latest stored UL transmission grant
return ue_db.at(rnti).cell_info[_get_ue_cc_idx(rnti, enb_cc_idx)].last_tb[pid % SRSLTE_FDD_NOF_HARQ]; return ue_db.at(rnti).cell_info[_get_ue_cc_idx(rnti, enb_cc_idx)].last_tb[pid];
} }
void phy_ue_db::set_ul_grant_available(uint32_t tti, const stack_interface_phy_lte::ul_sched_list_t& ul_sched_list) void phy_ue_db::set_ul_grant_available(uint32_t tti, const stack_interface_phy_lte::ul_sched_list_t& ul_sched_list)
@ -680,7 +680,7 @@ void phy_ue_db::set_ul_grant_available(uint32_t tti, const stack_interface_phy_l
// Reset all available grants flags for the given TTI // Reset all available grants flags for the given TTI
for (auto& ue : ue_db) { for (auto& ue : ue_db) {
for (cell_info_t& cell_info : ue.second.cell_info) { for (cell_info_t& cell_info : ue.second.cell_info) {
cell_info.is_grant_available[TTIMOD(tti)] = false; cell_info.is_grant_available[tti] = false;
} }
} }
@ -693,7 +693,7 @@ void phy_ue_db::set_ul_grant_available(uint32_t tti, const stack_interface_phy_l
// Check that eNb Cell/Carrier is active for the given RNTI // Check that eNb Cell/Carrier is active for the given RNTI
if (_assert_active_enb_cc(rnti, enb_cc_idx) == SRSLTE_SUCCESS) { if (_assert_active_enb_cc(rnti, enb_cc_idx) == SRSLTE_SUCCESS) {
// Rise Grant available flag // Rise Grant available flag
ue_db[rnti].cell_info[_get_ue_cc_idx(rnti, enb_cc_idx)].is_grant_available[TTIMOD(tti)] = true; ue_db[rnti].cell_info[_get_ue_cc_idx(rnti, enb_cc_idx)].is_grant_available[tti] = true;
} }
} }
} }

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