mirror of https://github.com/pvnis/srsRAN_4G.git
breaking enb_interfaces.h into multiple files on a layer basis. Created enb_rrc_interfaces.h, enb_mac_interfaces.h and enb_s1ap_interfaces.h
Francisco
4 years ago
committed by
Francisco Paisana
parent
dd6d6f731d
commit
43e57df00b
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2020 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 SRSLTE_ENB_MAC_INTERFACES_H
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#define SRSLTE_ENB_MAC_INTERFACES_H
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namespace srsenb {
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struct mac_args_t {
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uint32_t nof_prb; ///< Needed to dimension MAC softbuffers for all cells
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sched_interface::sched_args_t sched;
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int nr_tb_size = -1;
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uint32_t max_nof_ues;
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};
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/* Interface PHY -> MAC */
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class mac_interface_phy_lte
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{
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public:
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const static int MAX_GRANTS = 64;
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/**
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* DL grant structure per UE
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*/
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struct dl_sched_grant_t {
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srslte_dci_dl_t dci = {};
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uint8_t* data[SRSLTE_MAX_TB] = {};
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srslte_softbuffer_tx_t* softbuffer_tx[SRSLTE_MAX_TB] = {};
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};
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/**
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* DL Scheduling result per cell/carrier
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*/
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typedef struct {
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dl_sched_grant_t pdsch[MAX_GRANTS]; //< DL Grants
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uint32_t nof_grants; //< Number of DL grants
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uint32_t cfi; //< Current CFI of the cell, it can vary across cells
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} dl_sched_t;
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/**
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* List of DL scheduling results, one entry per cell/carrier
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*/
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typedef std::vector<dl_sched_t> dl_sched_list_t;
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typedef struct {
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uint16_t rnti;
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bool ack;
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} ul_sched_ack_t;
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/**
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* UL grant information per UE
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*/
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typedef struct {
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srslte_dci_ul_t dci;
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uint32_t pid;
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uint32_t current_tx_nb;
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uint8_t* data;
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bool needs_pdcch;
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srslte_softbuffer_rx_t* softbuffer_rx;
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} ul_sched_grant_t;
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/**
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* UL Scheduling result per cell/carrier
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*/
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typedef struct {
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ul_sched_grant_t pusch[MAX_GRANTS];
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ul_sched_ack_t phich[MAX_GRANTS];
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uint32_t nof_grants;
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uint32_t nof_phich;
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} ul_sched_t;
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/**
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* List of UL scheduling results, one entry per cell/carrier
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*/
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typedef std::vector<ul_sched_t> ul_sched_list_t;
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virtual int sr_detected(uint32_t tti, uint16_t rnti) = 0;
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virtual void rach_detected(uint32_t tti, uint32_t primary_cc_idx, uint32_t preamble_idx, uint32_t time_adv) = 0;
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/**
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* PHY callback for giving MAC the Rank Indicator information of a given RNTI for an eNb cell/carrier.
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*
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* @param tti the given TTI
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* @param rnti the UE identifier in the eNb
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* @param cc_idx The eNb Cell/Carrier where the measurement corresponds
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* @param ri_value the actual Rank Indicator value, 0 for 1 layer, 1 for two layers and so on.
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int ri_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t ri_value) = 0;
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/**
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* PHY callback for giving MAC the Pre-coding Matrix Indicator information of a given RNTI for an eNb cell/carrier.
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*
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* @param tti the given TTI
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* @param rnti the UE identifier in the eNb
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* @param cc_idx The eNb Cell/Carrier where the measurement corresponds
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* @param pmi_value the actual PMI value
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int pmi_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t pmi_value) = 0;
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/**
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* PHY callback for for giving MAC the Channel Quality information of a given RNTI, TTI and eNb cell/carrier
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* @param tti the given TTI
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* @param rnti the UE identifier in the eNb
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* @param cc_idx The eNb Cell/Carrier where the measurement corresponds
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* @param cqi_value the corresponding Channel Quality Information
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int cqi_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t cqi_value) = 0;
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typedef enum { PUSCH = 0, PUCCH, SRS } ul_channel_t;
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/**
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* PHY callback for giving MAC the SNR in dB of an UL transmission for a given RNTI at a given carrier
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*
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* @param tti The measurement was made
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* @param rnti The UE identifier in the eNb
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* @param cc_idx The eNb Cell/Carrier where the UL transmission was received
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* @param snr_db The actual SNR of the received signal
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* @param ch Indicates uplink channel (PUSCH, PUCCH or SRS)
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int snr_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, float snr_db, ul_channel_t ch) = 0;
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/**
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* PHY callback for giving MAC the Time Aligment information in microseconds of a given RNTI during a TTI processing
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*
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* @param tti The measurement was made
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* @param rnti The UE identifier in the eNb
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* @param ta_us The actual time alignment in microseconds
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int ta_info(uint32_t tti, uint16_t rnti, float ta_us) = 0;
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/**
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* PHY callback for giving MAC the HARQ DL ACK/NACK feedback information for a given RNTI, TTI, eNb cell/carrier and
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* Transport block.
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*
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* @param tti the given TTI
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* @param rnti the UE identifier in the eNb
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* @param cc_idx the eNb Cell/Carrier identifier
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* @param tb_idx the transport block index
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* @param ack true for ACK, false for NACK, do not call for DTX
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int ack_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t tb_idx, bool ack) = 0;
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/**
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* Informs MAC about a received PUSCH transmission for given RNTI, TTI and eNb Cell/carrier.
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*
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* This function does not deallocate the uplink buffer. The function push_pdu() must be called after this
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* to inform the MAC that the uplink buffer can be discarded or pushed to the stack
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*
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* @param tti the given TTI
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* @param rnti the UE identifier in the eNb
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* @param cc_idx the eNb Cell/Carrier identifier
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* @param nof_bytes the number of grants carrierd by the PUSCH message
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* @param crc_res the CRC check, set to true if the message was decoded succesfully
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int crc_info(uint32_t tti, uint16_t rnti, uint32_t cc_idx, uint32_t nof_bytes, bool crc_res) = 0;
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/**
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* Pushes an uplink PDU through the stack if crc_res==true or discards it if crc_res==false
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*
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* @param tti the given TTI
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* @param rnti the UE identifier in the eNb
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* @param enb_cc_idx the eNb Cell/Carrier identifier
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* @param nof_bytes the number of grants carrierd by the PUSCH message
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* @param crc_res the CRC check, set to true if the message was decoded succesfully
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* @return SRSLTE_SUCCESS if no error occurs, SRSLTE_ERROR* if an error occurs
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*/
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virtual int push_pdu(uint32_t tti_rx, uint16_t rnti, uint32_t enb_cc_idx, uint32_t nof_bytes, bool crc_res) = 0;
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virtual int get_dl_sched(uint32_t tti, dl_sched_list_t& dl_sched_res) = 0;
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virtual int get_mch_sched(uint32_t tti, bool is_mcch, dl_sched_list_t& dl_sched_res) = 0;
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virtual int get_ul_sched(uint32_t tti, ul_sched_list_t& ul_sched_res) = 0;
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virtual void set_sched_dl_tti_mask(uint8_t* tti_mask, uint32_t nof_sfs) = 0;
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};
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class mac_interface_rlc
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{
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public:
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virtual int rlc_buffer_state(uint16_t rnti, uint32_t lc_id, uint32_t tx_queue, uint32_t retx_queue) = 0;
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};
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class mac_interface_rrc
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{
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public:
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/* Provides cell configuration including SIB periodicity, etc. */
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virtual int cell_cfg(const std::vector<sched_interface::cell_cfg_t>& cell_cfg) = 0;
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virtual void reset() = 0;
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/* Manages UE configuration context */
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virtual int ue_cfg(uint16_t rnti, sched_interface::ue_cfg_t* cfg) = 0;
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virtual int ue_rem(uint16_t rnti) = 0;
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/**
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* Called after Msg3 reception to set the UE C-RNTI, resolve contention, and alter the UE's configuration in the
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* scheduler and phy.
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*
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* @param temp_crnti temporary C-RNTI of the UE
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* @param crnti chosen C-RNTI for the UE
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* @param cfg new UE scheduler configuration
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*/
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virtual int ue_set_crnti(uint16_t temp_crnti, uint16_t crnti, sched_interface::ue_cfg_t* cfg) = 0;
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/* Manages UE bearers and associated configuration */
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virtual int bearer_ue_cfg(uint16_t rnti, uint32_t lc_id, sched_interface::ue_bearer_cfg_t* cfg) = 0;
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virtual int bearer_ue_rem(uint16_t rnti, uint32_t lc_id) = 0;
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virtual void phy_config_enabled(uint16_t rnti, bool enabled) = 0;
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virtual void write_mcch(const srslte::sib2_mbms_t* sib2_,
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const srslte::sib13_t* sib13_,
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const srslte::mcch_msg_t* mcch_,
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const uint8_t* mcch_payload,
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const uint8_t mcch_payload_length) = 0;
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/**
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* Allocate a C-RNTI for a new user, without adding it to the phy layer and scheduler yet
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* @return value of the allocated C-RNTI
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*/
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virtual uint16_t reserve_new_crnti(const sched_interface::ue_cfg_t& ue_cfg) = 0;
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};
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// Combined interface for PHY to access stack (MAC and RRC)
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class stack_interface_phy_lte : public mac_interface_phy_lte
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{
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public:
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virtual void tti_clock() = 0;
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};
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} // namespace srsenb
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#endif // SRSLTE_ENB_MAC_INTERFACES_H
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@ -0,0 +1,91 @@
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2020 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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#include "srslte/asn1/s1ap_utils.h"
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#include "srslte/interfaces/enb_rrc_interface_types.h"
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#ifndef SRSLTE_ENB_RRC_INTERFACES_H
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#define SRSLTE_ENB_RRC_INTERFACES_H
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namespace srsenb {
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// RRC interface for S1AP
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class rrc_interface_s1ap
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{
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public:
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virtual void write_dl_info(uint16_t rnti, srslte::unique_byte_buffer_t sdu) = 0;
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virtual void release_complete(uint16_t rnti) = 0;
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virtual bool setup_ue_ctxt(uint16_t rnti, const asn1::s1ap::init_context_setup_request_s& msg) = 0;
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virtual bool modify_ue_ctxt(uint16_t rnti, const asn1::s1ap::ue_context_mod_request_s& msg) = 0;
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virtual bool setup_ue_erabs(uint16_t rnti, const asn1::s1ap::erab_setup_request_s& msg) = 0;
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virtual void modify_erabs(uint16_t rnti,
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const asn1::s1ap::erab_modify_request_s& msg,
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std::vector<uint16_t>* erabs_modified,
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std::vector<uint16_t>* erabs_failed_to_modify) = 0;
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virtual bool release_erabs(uint32_t rnti) = 0;
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virtual void release_erabs(uint32_t rnti,
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const asn1::s1ap::erab_release_cmd_s& msg,
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std::vector<uint16_t>* erabs_released,
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std::vector<uint16_t>* erabs_failed_to_release) = 0;
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virtual void add_paging_id(uint32_t ueid, const asn1::s1ap::ue_paging_id_c& ue_paging_id) = 0;
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/**
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* Reports the reception of S1 HandoverCommand / HandoverPreparationFailure or abnormal conditions during
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* S1 Handover preparation back to RRC.
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*
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* @param rnti user
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* @param is_success true if ho cmd was received
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* @param container TargeteNB RRCConnectionReconfiguration message with MobilityControlInfo
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*/
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virtual void ho_preparation_complete(uint16_t rnti,
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bool is_success,
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const asn1::s1ap::ho_cmd_s& msg,
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srslte::unique_byte_buffer_t container) = 0;
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virtual uint16_t
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start_ho_ue_resource_alloc(const asn1::s1ap::ho_request_s& msg,
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const asn1::s1ap::sourceenb_to_targetenb_transparent_container_s& container) = 0;
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virtual void set_erab_status(uint16_t rnti, const asn1::s1ap::bearers_subject_to_status_transfer_list_l& erabs) = 0;
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};
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/// RRC interface for RLC
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class rrc_interface_rlc
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{
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public:
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virtual void read_pdu_pcch(uint8_t* payload, uint32_t payload_size) = 0;
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virtual void max_retx_attempted(uint16_t rnti) = 0;
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virtual void write_pdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) = 0;
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};
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/// RRC interface for MAC
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class rrc_interface_mac
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{
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public:
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/* Radio Link failure */
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virtual int add_user(uint16_t rnti, const sched_interface::ue_cfg_t& init_ue_cfg) = 0;
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virtual void upd_user(uint16_t new_rnti, uint16_t old_rnti) = 0;
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virtual void set_activity_user(uint16_t rnti) = 0;
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virtual bool is_paging_opportunity(uint32_t tti, uint32_t* payload_len) = 0;
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///< Provide packed SIB to MAC (buffer is managed by RRC)
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virtual uint8_t* read_pdu_bcch_dlsch(const uint8_t enb_cc_idx, const uint32_t sib_index) = 0;
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};
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|
||||||
|
/// RRC interface for PDCP
|
||||||
|
class rrc_interface_pdcp
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
virtual void write_pdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t pdu) = 0;
|
||||||
|
};
|
||||||
|
|
||||||
|
} // namespace srsenb
|
||||||
|
|
||||||
|
#endif // SRSLTE_ENB_RRC_INTERFACES_H
|
||||||
@ -0,0 +1,113 @@
|
|||||||
|
/**
|
||||||
|
*
|
||||||
|
* \section COPYRIGHT
|
||||||
|
*
|
||||||
|
* Copyright 2013-2020 Software Radio Systems Limited
|
||||||
|
*
|
||||||
|
* By using this file, you agree to the terms and conditions set
|
||||||
|
* forth in the LICENSE file which can be found at the top level of
|
||||||
|
* the distribution.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "srslte/asn1/s1ap_utils.h"
|
||||||
|
#include "srslte/interfaces/rrc_interface_types.h"
|
||||||
|
|
||||||
|
#ifndef SRSLTE_ENB_S1AP_INTERFACES_H
|
||||||
|
#define SRSLTE_ENB_S1AP_INTERFACES_H
|
||||||
|
|
||||||
|
namespace srsenb {
|
||||||
|
|
||||||
|
struct s1ap_args_t {
|
||||||
|
uint32_t enb_id; // 20-bit id (lsb bits)
|
||||||
|
uint8_t cell_id; // 8-bit cell id
|
||||||
|
uint16_t tac; // 16-bit tac
|
||||||
|
uint16_t mcc; // BCD-coded with 0xF filler
|
||||||
|
uint16_t mnc; // BCD-coded with 0xF filler
|
||||||
|
std::string mme_addr;
|
||||||
|
std::string gtp_bind_addr;
|
||||||
|
std::string s1c_bind_addr;
|
||||||
|
std::string enb_name;
|
||||||
|
};
|
||||||
|
|
||||||
|
// S1AP interface for RRC
|
||||||
|
class s1ap_interface_rrc
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
struct bearer_status_info {
|
||||||
|
uint8_t erab_id;
|
||||||
|
uint16_t pdcp_dl_sn, pdcp_ul_sn;
|
||||||
|
uint16_t dl_hfn, ul_hfn;
|
||||||
|
};
|
||||||
|
|
||||||
|
virtual void
|
||||||
|
initial_ue(uint16_t rnti, asn1::s1ap::rrc_establishment_cause_e cause, srslte::unique_byte_buffer_t pdu) = 0;
|
||||||
|
virtual void initial_ue(uint16_t rnti,
|
||||||
|
asn1::s1ap::rrc_establishment_cause_e cause,
|
||||||
|
srslte::unique_byte_buffer_t pdu,
|
||||||
|
uint32_t m_tmsi,
|
||||||
|
uint8_t mmec) = 0;
|
||||||
|
|
||||||
|
virtual void write_pdu(uint16_t rnti, srslte::unique_byte_buffer_t pdu) = 0;
|
||||||
|
virtual bool user_exists(uint16_t rnti) = 0;
|
||||||
|
virtual void user_mod(uint16_t old_rnti, uint16_t new_rnti) = 0;
|
||||||
|
virtual bool user_release(uint16_t rnti, asn1::s1ap::cause_radio_network_e cause_radio) = 0;
|
||||||
|
virtual void ue_ctxt_setup_complete(uint16_t rnti, const asn1::s1ap::init_context_setup_resp_s& res) = 0;
|
||||||
|
virtual void ue_erab_setup_complete(uint16_t rnti, const asn1::s1ap::erab_setup_resp_s& res) = 0;
|
||||||
|
virtual bool is_mme_connected() = 0;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Command the s1ap to transmit a HandoverRequired message to MME.
|
||||||
|
* This message initiates the S1 handover preparation procedure at the Source eNB
|
||||||
|
*
|
||||||
|
* @param rnti user to perform S1 handover
|
||||||
|
* @param target_eci eNB Id + Cell Id of the target eNB
|
||||||
|
* @param target_plmn PLMN of the target eNB
|
||||||
|
* @param rrc_container RRC container with SourceENBToTargetENBTransparentContainer message.
|
||||||
|
* @return true if successful
|
||||||
|
*/
|
||||||
|
virtual bool send_ho_required(uint16_t rnti,
|
||||||
|
uint32_t target_eci,
|
||||||
|
srslte::plmn_id_t target_plmn,
|
||||||
|
srslte::unique_byte_buffer_t rrc_container) = 0;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Command the s1ap to transmit eNBStatusTransfer message to MME. This message passes the PDCP context of the UE
|
||||||
|
* performing S1 handover from source eNB to target eNB.
|
||||||
|
*
|
||||||
|
* @param rnti user to perform S1 handover
|
||||||
|
* @param bearer_status_list PDCP SN and HFN status of the bearers to be preserved at target eNB
|
||||||
|
* @return true if successful
|
||||||
|
*/
|
||||||
|
virtual bool send_enb_status_transfer_proc(uint16_t rnti, std::vector<bearer_status_info>& bearer_status_list) = 0;
|
||||||
|
|
||||||
|
/* Acknowledge Handover Request message back to MME.
|
||||||
|
* This message signals the completion of the HandoverPreparation from the TeNB point of view. */
|
||||||
|
virtual bool send_ho_req_ack(const asn1::s1ap::ho_request_s& msg,
|
||||||
|
uint16_t rnti,
|
||||||
|
srslte::unique_byte_buffer_t ho_cmd,
|
||||||
|
srslte::span<asn1::s1ap::erab_admitted_item_s> admitted_bearers) = 0;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Notify MME that Handover is complete
|
||||||
|
*/
|
||||||
|
virtual void send_ho_notify(uint16_t rnti, uint64_t target_eci) = 0;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Cancel on-going S1 Handover. MME should release UE context in target eNB
|
||||||
|
* SeNB --> MME
|
||||||
|
*/
|
||||||
|
virtual void send_ho_cancel(uint16_t rnti) = 0;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Called during release of a subset of eNB E-RABs. Send E-RAB RELEASE INDICATION to MME.
|
||||||
|
* SeNB --> MME
|
||||||
|
*/
|
||||||
|
virtual bool release_erabs(uint16_t rnti, const std::vector<uint16_t>& erabs_successfully_released) = 0;
|
||||||
|
|
||||||
|
virtual bool send_ue_cap_info_indication(uint16_t rnti, srslte::unique_byte_buffer_t ue_radio_cap) = 0;
|
||||||
|
};
|
||||||
|
|
||||||
|
} // namespace srsenb
|
||||||
|
|
||||||
|
#endif // SRSLTE_ENB_S1AP_INTERFACES_H
|
||||||
Loading…
Reference in New Issue