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212 lines
7.0 KiB
C++
212 lines
7.0 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSENB_UE_H
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#define SRSENB_UE_H
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#include "mac_metrics.h"
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#include "srsran/adt/circular_array.h"
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#include "srsran/adt/circular_map.h"
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#include "srsran/common/block_queue.h"
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#include "srsran/common/mac_pcap.h"
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#include "srsran/common/mac_pcap_net.h"
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#include "srsran/common/tti_point.h"
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#include "srsran/interfaces/sched_interface.h"
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#include "srsran/mac/pdu.h"
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#include "srsran/mac/pdu_queue.h"
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#include "srsran/srslog/srslog.h"
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#include "ta.h"
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#include <pthread.h>
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#include <vector>
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namespace srsenb {
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class rrc_interface_mac;
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class rlc_interface_mac;
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class phy_interface_stack_lte;
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class cc_used_buffers_map
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{
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public:
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explicit cc_used_buffers_map(srsran::pdu_queue& shared_pdu_queue_);
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uint8_t* request_pdu(tti_point tti, uint32_t len);
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bool push_pdu(tti_point tti, uint32_t len);
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void clear_old_pdus(tti_point current_tti);
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bool try_deallocate_pdu(tti_point tti);
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void clear();
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uint8_t*& operator[](tti_point tti);
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bool has_tti(tti_point tti) const;
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private:
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void remove_pdu(tti_point tti);
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srslog::basic_logger* logger;
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srsran::pdu_queue* shared_pdu_queue;
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srsran::static_circular_map<uint32_t, uint8_t*, SRSRAN_FDD_NOF_HARQ * 8> pdu_map;
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};
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class cc_buffer_handler
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{
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public:
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// List of Tx softbuffers for all HARQ processes of one carrier
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using cc_softbuffer_tx_list_t = std::vector<srsran_softbuffer_tx_t>;
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// List of Rx softbuffers for all HARQ processes of one carrier
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using cc_softbuffer_rx_list_t = std::vector<srsran_softbuffer_rx_t>;
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explicit cc_buffer_handler(srsran::pdu_queue& shared_pdu_queue_);
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~cc_buffer_handler();
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void reset();
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void allocate_cc(uint32_t nof_prb, uint32_t nof_rx_harq_proc, uint32_t nof_tx_harq_proc);
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void deallocate_cc();
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bool empty() const { return softbuffer_tx_list.empty() and softbuffer_rx_list.empty(); }
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srsran_softbuffer_tx_t& get_tx_softbuffer(uint32_t pid, uint32_t tb_idx)
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{
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return softbuffer_tx_list.at(pid * SRSRAN_MAX_TB + tb_idx);
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}
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srsran_softbuffer_rx_t& get_rx_softbuffer(uint32_t tti) { return softbuffer_rx_list.at(tti % nof_rx_harq_proc); }
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srsran::byte_buffer_t* get_tx_payload_buffer(size_t harq_pid, size_t tb)
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{
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return tx_payload_buffer[harq_pid][tb].get();
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}
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cc_used_buffers_map& get_rx_used_buffers() { return rx_used_buffers; }
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private:
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// args
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uint32_t nof_prb;
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uint32_t nof_rx_harq_proc;
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uint32_t nof_tx_harq_proc;
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// buffers
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cc_softbuffer_tx_list_t softbuffer_tx_list; ///< List of softbuffer lists for Tx
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cc_softbuffer_rx_list_t softbuffer_rx_list; ///< List of softbuffer lists for Rx
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cc_used_buffers_map rx_used_buffers;
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// One buffer per TB per HARQ process and per carrier is needed for each UE.
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std::array<std::array<srsran::unique_byte_buffer_t, SRSRAN_MAX_TB>, SRSRAN_FDD_NOF_HARQ> tx_payload_buffer;
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};
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class ue : public srsran::read_pdu_interface, public srsran::pdu_queue::process_callback, public mac_ta_ue_interface
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{
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public:
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ue(uint16_t rnti,
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uint32_t nof_prb,
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sched_interface* sched,
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rrc_interface_mac* rrc_,
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rlc_interface_mac* rlc,
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phy_interface_stack_lte* phy_,
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srslog::basic_logger& logger,
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uint32_t nof_cells_,
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uint32_t nof_rx_harq_proc = SRSRAN_FDD_NOF_HARQ,
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uint32_t nof_tx_harq_proc = SRSRAN_FDD_NOF_HARQ);
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virtual ~ue();
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void reset();
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void start_pcap(srsran::mac_pcap* pcap_);
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void start_pcap_net(srsran::mac_pcap_net* pcap_net_);
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void set_tti(uint32_t tti);
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uint16_t get_rnti() { return rnti; }
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uint32_t set_ta(int ta) override;
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void start_ta() { ta_fsm.start(); };
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uint32_t set_ta_us(float ta_us) { return ta_fsm.push_value(ta_us); };
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void tic();
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uint8_t* generate_pdu(uint32_t ue_cc_idx,
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uint32_t harq_pid,
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uint32_t tb_idx,
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const sched_interface::dl_sched_pdu_t pdu[sched_interface::MAX_RLC_PDU_LIST],
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uint32_t nof_pdu_elems,
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uint32_t grant_size);
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uint8_t*
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generate_mch_pdu(uint32_t harq_pid, sched_interface::dl_pdu_mch_t sched, uint32_t nof_pdu_elems, uint32_t grant_size);
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srsran_softbuffer_tx_t*
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get_tx_softbuffer(const uint32_t ue_cc_idx, const uint32_t harq_process, const uint32_t tb_idx);
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srsran_softbuffer_rx_t* get_rx_softbuffer(const uint32_t ue_cc_idx, const uint32_t tti);
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bool process_pdus();
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uint8_t* request_buffer(uint32_t tti, uint32_t ue_cc_idx, const uint32_t len);
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void process_pdu(uint8_t* pdu, uint32_t nof_bytes, srsran::pdu_queue::channel_t channel) override;
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void push_pdu(uint32_t tti, uint32_t ue_cc_idx, uint32_t len);
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void deallocate_pdu(uint32_t tti, uint32_t ue_cc_idx);
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void clear_old_buffers(uint32_t tti);
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void metrics_read(mac_ue_metrics_t* metrics_);
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void metrics_rx(bool crc, uint32_t tbs);
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void metrics_tx(bool crc, uint32_t tbs);
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void metrics_phr(float phr);
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void metrics_dl_ri(uint32_t dl_cqi);
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void metrics_dl_pmi(uint32_t dl_cqi);
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void metrics_dl_cqi(uint32_t dl_cqi);
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void metrics_cnt();
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int read_pdu(uint32_t lcid, uint8_t* payload, uint32_t requested_bytes) final;
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private:
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void allocate_sdu(srsran::sch_pdu* pdu, uint32_t lcid, uint32_t sdu_len);
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bool process_ce(srsran::sch_subh* subh);
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void allocate_ce(srsran::sch_pdu* pdu, uint32_t lcid);
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uint32_t phr_counter = 0;
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uint32_t dl_cqi_counter = 0;
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uint32_t dl_ri_counter = 0;
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uint32_t dl_pmi_counter = 0;
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mac_ue_metrics_t ue_metrics = {};
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srsran::mac_pcap* pcap = nullptr;
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srsran::mac_pcap_net* pcap_net = nullptr;
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uint64_t conres_id = 0;
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uint16_t rnti = 0;
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uint32_t nof_prb = 0;
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uint32_t last_tti = 0;
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uint32_t nof_failures = 0;
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int nof_rx_harq_proc = 0;
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int nof_tx_harq_proc = 0;
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srsran::bounded_vector<cc_buffer_handler, SRSRAN_MAX_CARRIERS> cc_buffers;
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std::mutex rx_buffers_mutex;
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srsran::block_queue<uint32_t> pending_ta_commands;
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ta ta_fsm;
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// For UL there are multiple buffers per PID and are managed by pdu_queue
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srsran::pdu_queue pdus;
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srsran::sch_pdu mac_msg_dl, mac_msg_ul;
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srsran::mch_pdu mch_mac_msg_dl;
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rlc_interface_mac* rlc = nullptr;
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rrc_interface_mac* rrc = nullptr;
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phy_interface_stack_lte* phy = nullptr;
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srslog::basic_logger& logger;
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sched_interface* sched = nullptr;
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// Mutexes
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std::mutex mutex;
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const uint8_t UL_CC_IDX = 0; ///< Passed to write CC index in PCAP (TODO: use actual CC idx)
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};
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} // namespace srsenb
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#endif // SRSENB_UE_H
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