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169 lines
4.7 KiB
C++
169 lines
4.7 KiB
C++
/**
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* This file is part of srsRAN.
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*
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* srsRAN is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsRAN is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSRAN_BASIC_VNF_API_H
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#define SRSRAN_BASIC_VNF_API_H
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#include <thread>
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namespace basic_vnf_api {
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// PNF (the PHY) VNF (the L2/L3)
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// | |
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// | |
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// | - |
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// | \ sf_ind_msg_t
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// | \ |
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// | \ |
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// | \ |
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// | \ |
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// | \ |
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// | \|
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// | |
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// | | DL_CONFIG.request
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// | /|
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// | / |
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// | / |
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// | / |
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// | / |
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// | / dl_conf_msg_t
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// | / |
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// |/ | TX.request
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// | /|
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// | / |
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// | / |
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// | / |
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// | / |
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// | / tx_request_msg_t
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// | / |
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// |/ |
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// | |
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// Primitive API messages for basic testing basic VNF/PNF interaction
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enum msg_type_t {
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SF_IND, ///< To signal start of new subframe (later slot) for both UE and gNB
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DL_CONFIG, ///< To configure the DL for gNB
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TX_REQUEST, ///< For DL data for gNB
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RX_DATA_IND, ///< For UL Data for gNB
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DL_IND, ///< For the UE for DL data
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UL_IND, ///< For the UE for UL Data
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MSG_TYPE_NITEMS
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};
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static const char* msg_type_text[MSG_TYPE_NITEMS] =
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{"SF Indication", "DL_CONFIG.Request", "TX.Request", "RX_Data.indication", "DL_Indication", "UL_Indication"};
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enum pdu_type_t { MAC_PBCH, PHY_PBCH, PDCCH, PDSCH, PUSCH };
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struct msg_header_t {
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msg_type_t type;
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uint32_t msg_len;
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};
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struct sf_ind_msg_t {
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msg_header_t header;
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uint32_t t1; // Timestamp taken at PNF
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uint32_t tti; // TTI of requested subframe
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uint32_t tb_len; // Length of the TB
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};
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#define MAX_TB_LEN (16 * 1024)
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#define MAX_PDU_SIZE (16 * 1024)
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#define MAX_NUM_PDUS (1)
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struct phy_pbch_pdu_t {
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uint16_t phy_cell_id; // 0 - 1007
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uint8_t ss_block_index; // 0-63
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uint8_t ssb_sc_offset; // 0-15
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uint8_t dmrs_pos; // 0-1
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uint8_t pdcch_config; // 0-255
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};
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struct dl_conf_msg_t {
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msg_header_t header;
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uint32_t t1; // Replayed timestamp
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uint32_t t2; // Timestamp taken at VNF
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uint32_t tti; // TTI
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uint16_t beam_id; // tx beam id for the slot
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};
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struct tx_request_pdu_t {
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uint16_t length;
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uint16_t index; // index indicated in dl_config
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pdu_type_t type; // physical chan of pdu/tb
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uint8_t data[MAX_PDU_SIZE];
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};
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struct tx_request_msg_t {
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msg_header_t header;
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uint32_t tti; // TTI
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uint32_t tb_len; // actual TB len
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uint32_t nof_pdus;
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tx_request_pdu_t pdus[MAX_NUM_PDUS];
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};
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struct rx_data_ind_pdu_t {
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uint16_t length;
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pdu_type_t type; // physical chan of pdu/tb
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uint8_t data[MAX_PDU_SIZE];
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};
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struct rx_data_ind_msg_t {
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msg_header_t header;
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uint32_t t1; // Timestamp taken at PNF
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uint32_t sfn; ///< SFN (0-1023)
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uint32_t slot; ///< Slot (0-319)
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uint32_t tb_len; ///< actual TB len
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uint32_t nof_pdus; //
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rx_data_ind_pdu_t pdus[MAX_NUM_PDUS];
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};
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// UE specific messages
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struct dl_ind_pdu_t {
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pdu_type_t type; // physical chan of pdu/tb
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uint16_t length;
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uint8_t data[MAX_PDU_SIZE];
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};
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struct dl_ind_msg_t {
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msg_header_t header;
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uint32_t t1; // Timestamp taken at PNF
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uint32_t tti; // tti or slot?
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uint32_t nof_pdus;
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dl_ind_pdu_t pdus[MAX_NUM_PDUS];
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};
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///< Messages for UL (only one PDU)
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struct ul_ind_pdu_t {
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pdu_type_t type; // physical chan of pdu/tb
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uint16_t length;
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};
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struct ul_ind_msg_t {
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msg_header_t header;
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uint32_t t1; // Timestamp taken at PNF
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uint32_t tti; // tti or slot?
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uint32_t rnti; ///< RNTI of this grant
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ul_ind_pdu_t pdus;
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};
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} // namespace basic_vnf_api
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#endif // SRSRAN_BASIC_VNF_API_H
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