mirror of https://github.com/pvnis/srsRAN_4G.git
added nr gnb and ue interfaces
Francisco Paisana
5 years ago
committed by
Francisco Paisana
parent
d36ae722d5
commit
b4b5cd7cd6
@ -0,0 +1,225 @@
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/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE 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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* srsLTE 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 SRSLTE_GNB_INTERFACES_H
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#define SRSLTE_GNB_INTERFACES_H
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#include "srslte/common/interfaces_common.h"
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#include "srslte/common/security.h"
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#include "srslte/interfaces/pdcp_interface_types.h"
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#include "srslte/interfaces/rlc_interface_types.h"
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#include "srslte/interfaces/rrc_interface_types.h"
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#include "srslte/interfaces/sched_interface.h"
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namespace srsenb {
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/*****************************
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* MAC INTERFACES
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****************************/
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class mac_interface_rrc_nr
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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(srsenb::sched_interface::cell_cfg_t* cell_cfg) = 0;
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};
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class mac_interface_rlc_nr
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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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/*****************************
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* RLC INTERFACES
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****************************/
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class rlc_interface_mac_nr
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{
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public:
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/* MAC calls RLC to get RLC segment of nof_bytes length.
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* Segmentation happens in this function. RLC PDU is stored in payload. */
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virtual int read_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof_bytes) = 0;
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virtual void read_pdu_pcch(uint8_t* payload, uint32_t buffer_size) = 0;
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/* MAC calls RLC to push an RLC PDU. This function is called from an independent MAC thread.
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* PDU gets placed into the buffer and higher layer thread gets notified. */
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virtual void write_pdu(uint16_t rnti, uint32_t lcid, uint8_t* payload, uint32_t nof_bytes) = 0;
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};
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class rlc_interface_pdcp_nr
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{
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public:
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/* PDCP calls RLC to push an RLC SDU. SDU gets placed into the RLC buffer and MAC pulls
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* RLC PDUs according to TB size. */
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virtual void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) = 0;
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virtual bool rb_is_um(uint16_t rnti, uint32_t lcid) = 0;
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};
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class rlc_interface_rrc_nr
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{
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public:
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virtual void clear_buffer(uint16_t rnti) = 0;
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virtual void add_user(uint16_t rnti) = 0;
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virtual void rem_user(uint16_t rnti) = 0;
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virtual void add_bearer(uint16_t rnti, uint32_t lcid, srslte::rlc_config_t cnfg) = 0;
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virtual void add_bearer_mrb(uint16_t rnti, uint32_t lcid) = 0;
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virtual void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) = 0;
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};
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/* PDCP Interfaces */
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class pdcp_interface_rlc_nr
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{
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public:
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/* RLC calls PDCP to push a PDCP PDU. */
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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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class pdcp_interface_rrc_nr
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{
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public:
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virtual void reset(uint16_t rnti) = 0;
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virtual void add_user(uint16_t rnti) = 0;
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virtual void rem_user(uint16_t rnti) = 0;
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virtual void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) = 0;
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virtual void add_bearer(uint16_t rnti, uint32_t lcid, srslte::pdcp_config_t cnfg) = 0;
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virtual void config_security(uint16_t rnti, uint32_t lcid, srslte::as_security_config_t sec_cfg) = 0;
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virtual void enable_integrity(uint16_t rnti, uint32_t lcid) = 0;
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virtual void enable_encryption(uint16_t rnti, uint32_t lcid) = 0;
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};
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class pdcp_interface_sdap_nr
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{
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public:
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virtual void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t pdu) = 0;
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};
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class s1ap_interface_rrc_nr
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{};
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class gtpu_interface_sdap_nr
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{
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public:
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virtual void write_pdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t pdu) = 0;
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};
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/*****************************
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* SDAP INTERFACES
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****************************/
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class sdap_interface_pdcp_nr
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{
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public:
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virtual void write_pdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t pdu) = 0;
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};
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class sdap_interface_gtpu_nr
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{
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public:
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virtual void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t pdu) = 0;
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};
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/*****************************
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* GTPU INTERFACES
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****************************/
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class gtpu_interface_rrc_nr
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{
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public:
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};
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/*****************************
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* RRC INTERFACES
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****************************/
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class rrc_interface_phy_nr
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{};
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class rrc_interface_mac_nr
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{
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public:
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// Provides MIB packed message
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virtual int read_pdu_bcch_bch(const uint32_t tti, srslte::unique_byte_buffer_t& buffer) = 0;
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virtual int read_pdu_bcch_dlsch(uint32_t sib_index, srslte::unique_byte_buffer_t& buffer) = 0;
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};
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class rrc_interface_rlc_nr
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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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class rrc_interface_pdcp_nr
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{
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public:
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virtual void write_pdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t pdu) = 0;
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};
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class rrc_interface_ngap_nr
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{
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public:
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};
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/*****************************
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* NGAP INTERFACES
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****************************/
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class ngap_interface_rrc_nr
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{
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public:
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};
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class phy_interface_stack_nr
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{
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public:
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const static int MAX_DL_GRANTS = 4;
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typedef struct {
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// FIXME: not including NR related fields yet
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} dl_sched_grant_t;
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typedef struct {
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bool mib_present;
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} bch_sched_t;
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typedef struct {
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uint32_t tti;
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uint32_t nof_grants;
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dl_sched_grant_t pdsch[MAX_DL_GRANTS];
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int beam_id;
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} dl_config_request_t;
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typedef struct {
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bch_sched_t pbch;
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uint16_t length;
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uint16_t index; // index indicated in dl_config
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uint8_t* data[SRSLTE_MAX_TB]; // always a pointer in our case
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} tx_request_pdu_t;
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typedef struct {
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uint32_t tti;
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uint32_t tb_len;
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uint32_t nof_pdus;
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tx_request_pdu_t pdus[MAX_DL_GRANTS];
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} tx_request_t;
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virtual int dl_config_request(const dl_config_request_t& request) = 0;
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virtual int tx_request(const tx_request_t& request) = 0;
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};
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class stack_interface_phy_nr : public srslte::stack_interface_phy_nr
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{
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public:
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virtual int sf_indication(const uint32_t tti) = 0;
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};
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class mac_interface_phy_nr
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{};
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} // namespace srsenb
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#endif // SRSLTE_GNB_INTERFACES_H
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@ -0,0 +1,96 @@
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/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE 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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* srsLTE 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 SRSLTE_UE_NR_INTERFACES_H
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#define SRSLTE_UE_NR_INTERFACES_H
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#include <string>
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#include "srslte/common/interfaces_common.h"
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namespace srsue {
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class rrc_interface_phy_nr
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{
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public:
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virtual void in_sync() = 0;
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virtual void out_of_sync() = 0;
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virtual void run_tti(const uint32_t tti) = 0;
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};
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class mac_interface_phy_nr
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{
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public:
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typedef struct {
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srslte::unique_byte_buffer_t tb[SRSLTE_MAX_TB];
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uint32_t pid;
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uint16_t rnti;
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uint32_t tti;
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} mac_nr_grant_dl_t;
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typedef struct {
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uint32_t pid;
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uint16_t rnti;
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uint32_t tti;
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uint32_t tbs;
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} mac_nr_grant_ul_t;
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virtual int sf_indication(const uint32_t tti) = 0; ///< FIXME: rename to slot indication
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/// Indicate succussfully received TB to MAC. The TB buffer is allocated in the PHY and handed as unique_ptr to MAC
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virtual void tb_decoded(const uint32_t cc_idx, mac_nr_grant_dl_t& grant) = 0;
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/// Indicate reception of UL grant (only TBS is provided). Buffer for resulting MAC PDU is provided by MAC and is
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/// passed as pointer to PHY during tx_reuqest
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virtual void new_grant_ul(const uint32_t cc_idx, const mac_nr_grant_ul_t& grant) = 0;
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};
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class mac_interface_rrc_nr
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{};
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class phy_interface_mac_nr
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{
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public:
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typedef struct {
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uint32_t tti;
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uint32_t tb_len;
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uint8_t* data; // always a pointer in our case
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} tx_request_t;
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virtual int tx_request(const tx_request_t& request) = 0;
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};
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class phy_interface_rrc_nr
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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_nr : public mac_interface_phy_nr,
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public rrc_interface_phy_nr,
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public srslte::stack_interface_phy_nr
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{};
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// Combined interface for stack (MAC and RRC) to access PHY
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class phy_interface_stack_nr : public phy_interface_mac_nr, public phy_interface_rrc_nr
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{};
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} // namespace srsue
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#endif // SRSLTE_UE_NR_INTERFACES_H
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