mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
208 lines
8.9 KiB
C++
208 lines
8.9 KiB
C++
/**
|
|
* Copyright 2013-2020 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsLTE.
|
|
*
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsLTE is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
#include "sched_test_common.h"
|
|
#include "sched_test_utils.h"
|
|
#include "srsenb/hdr/stack/mac/sched_ue.h"
|
|
#include "srslte/common/test_common.h"
|
|
|
|
using namespace srsenb;
|
|
const uint32_t seed = std::chrono::system_clock::now().time_since_epoch().count();
|
|
uint32_t rlc_overhead(uint32_t lcid)
|
|
{
|
|
return lcid == 0 ? 0 : 3;
|
|
}
|
|
uint32_t add_rlc_overhead(uint32_t lcid, uint32_t rlc_payload_size)
|
|
{
|
|
return rlc_payload_size + (rlc_payload_size == 0 ? 0 : rlc_overhead(lcid));
|
|
}
|
|
|
|
/// Tests if a PDU was allocated with lcid and pdu_size bytes
|
|
int test_pdu_alloc_successful(srsenb::lch_ue_manager& lch_handler,
|
|
sched_interface::dl_sched_pdu_t& pdu,
|
|
int lcid,
|
|
uint32_t rlc_payload_size)
|
|
{
|
|
uint32_t mac_sdu_size = add_rlc_overhead(lcid, rlc_payload_size);
|
|
TESTASSERT(lch_handler.get_max_prio_lcid() == lcid);
|
|
TESTASSERT(lch_handler.alloc_rlc_pdu(&pdu, mac_sdu_size) == (int)mac_sdu_size);
|
|
TESTASSERT(pdu.lcid == (uint32_t)lcid);
|
|
TESTASSERT(pdu.nbytes == mac_sdu_size);
|
|
return SRSLTE_SUCCESS;
|
|
}
|
|
|
|
int test_retx_until_empty(srsenb::lch_ue_manager& lch_handler, int lcid, uint32_t rlc_payload_size)
|
|
{
|
|
int start_rlc_bytes = lch_handler.get_dl_retx(lcid);
|
|
int nof_pdus = ceil(start_rlc_bytes / (float)rlc_payload_size);
|
|
int rem_rlc_bytes = start_rlc_bytes;
|
|
|
|
sched_interface::dl_sched_pdu_t pdu;
|
|
for (int i = 0; i < nof_pdus; ++i) {
|
|
uint32_t expected_payload_size = std::min(rlc_payload_size, (uint32_t)rem_rlc_bytes);
|
|
TESTASSERT(test_pdu_alloc_successful(lch_handler, pdu, lcid, expected_payload_size) == SRSLTE_SUCCESS);
|
|
rem_rlc_bytes -= expected_payload_size;
|
|
TESTASSERT(lch_handler.get_dl_retx(lcid) == rem_rlc_bytes);
|
|
}
|
|
return start_rlc_bytes;
|
|
}
|
|
|
|
int test_newtx_until_empty(srsenb::lch_ue_manager& lch_handler, int lcid, uint32_t rlc_payload_size)
|
|
{
|
|
int start_rlc_bytes = lch_handler.get_dl_tx(lcid);
|
|
int nof_pdus = ceil(start_rlc_bytes / (float)rlc_payload_size);
|
|
int rem_rlc_bytes = start_rlc_bytes;
|
|
|
|
sched_interface::dl_sched_pdu_t pdu;
|
|
for (int i = 0; i < nof_pdus; ++i) {
|
|
uint32_t expected_payload_size = std::min(rlc_payload_size, (uint32_t)rem_rlc_bytes);
|
|
TESTASSERT(test_pdu_alloc_successful(lch_handler, pdu, lcid, expected_payload_size) == SRSLTE_SUCCESS);
|
|
rem_rlc_bytes -= expected_payload_size;
|
|
TESTASSERT(lch_handler.get_dl_tx(lcid) == (int)rem_rlc_bytes);
|
|
}
|
|
return start_rlc_bytes;
|
|
}
|
|
|
|
int test_lc_ch_pbr_infinity()
|
|
{
|
|
srsenb::lch_ue_manager lch_handler;
|
|
|
|
srsenb::sched_interface::ue_cfg_t ue_cfg = generate_default_ue_cfg();
|
|
ue_cfg = generate_setup_ue_cfg(ue_cfg);
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_SRB1] = {};
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_SRB1].direction = sched_interface::ue_bearer_cfg_t::BOTH;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1] = {};
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1].direction = sched_interface::ue_bearer_cfg_t::BOTH;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1].priority = 5;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2] = {};
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2].direction = sched_interface::ue_bearer_cfg_t::BOTH;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2].priority = 3;
|
|
|
|
lch_handler.set_cfg(ue_cfg);
|
|
lch_handler.new_tti();
|
|
|
|
lch_handler.dl_buffer_state(srsenb::RB_ID_SRB1, 50000, 10000);
|
|
lch_handler.dl_buffer_state(srsenb::RB_ID_DRB1, 5000, 10000);
|
|
lch_handler.dl_buffer_state(srsenb::RB_ID_DRB2, 5000, 10000);
|
|
|
|
// TEST1 - retx of SRB1 is prioritized. Do not transmit other bearers until there are no SRB1 retxs
|
|
int nof_pending_bytes = lch_handler.get_dl_retx(srsenb::RB_ID_SRB1);
|
|
TESTASSERT(test_retx_until_empty(lch_handler, srsenb::RB_ID_SRB1, 500) == nof_pending_bytes);
|
|
|
|
// TEST2 - the DRB2 has lower prio level than SRB1, but has retxs
|
|
nof_pending_bytes = lch_handler.get_dl_retx(srsenb::RB_ID_DRB2);
|
|
TESTASSERT(test_retx_until_empty(lch_handler, srsenb::RB_ID_DRB2, 500) == nof_pending_bytes);
|
|
|
|
// TEST3 - the DRB1 has lower prio level, but has retxs
|
|
nof_pending_bytes = lch_handler.get_dl_retx(srsenb::RB_ID_DRB1);
|
|
TESTASSERT(test_retx_until_empty(lch_handler, srsenb::RB_ID_DRB1, 500) == nof_pending_bytes);
|
|
|
|
// TEST4 - The SRB1 newtx buffer is emptied before other bearers newtxs
|
|
nof_pending_bytes = lch_handler.get_dl_tx(srsenb::RB_ID_SRB1);
|
|
TESTASSERT(test_newtx_until_empty(lch_handler, srsenb::RB_ID_SRB1, 500) == nof_pending_bytes);
|
|
|
|
// TEST5 - The DRB2 newtx buffer is emptied before DRB1 newtxs
|
|
nof_pending_bytes = lch_handler.get_dl_tx(srsenb::RB_ID_DRB2);
|
|
TESTASSERT(test_newtx_until_empty(lch_handler, srsenb::RB_ID_DRB2, 500) == nof_pending_bytes);
|
|
|
|
// TEST6 - The DRB1 buffer is emptied
|
|
nof_pending_bytes = lch_handler.get_dl_tx(srsenb::RB_ID_DRB1);
|
|
TESTASSERT(test_newtx_until_empty(lch_handler, srsenb::RB_ID_DRB1, 500) == nof_pending_bytes);
|
|
|
|
return SRSLTE_SUCCESS;
|
|
}
|
|
|
|
int test_lc_ch_pbr_finite()
|
|
{
|
|
srsenb::lch_ue_manager lch_handler;
|
|
sched_interface::dl_sched_pdu_t pdu;
|
|
|
|
srsenb::sched_interface::ue_cfg_t ue_cfg = generate_default_ue_cfg();
|
|
ue_cfg = generate_setup_ue_cfg(ue_cfg);
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_SRB1] = {};
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_SRB1].direction = sched_interface::ue_bearer_cfg_t::BOTH;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1] = {};
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1].direction = sched_interface::ue_bearer_cfg_t::BOTH;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1].pbr = 256; // kBps
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1].bsd = 50; // msec
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB1].priority = 5;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2] = {};
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2].direction = sched_interface::ue_bearer_cfg_t::BOTH;
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2].pbr = 8; // kBps
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2].bsd = 50; // msec
|
|
ue_cfg.ue_bearers[srsenb::RB_ID_DRB2].priority = 3;
|
|
|
|
lch_handler.set_cfg(ue_cfg);
|
|
for (uint32_t i = 0; i < 50; ++i) {
|
|
lch_handler.new_tti();
|
|
}
|
|
// Bj={0, infinity, 0, 12800, 400}
|
|
|
|
lch_handler.dl_buffer_state(srsenb::RB_ID_SRB1, 50000, 1000);
|
|
lch_handler.dl_buffer_state(srsenb::RB_ID_DRB1, 50000, 1000);
|
|
lch_handler.dl_buffer_state(srsenb::RB_ID_DRB2, 50000, 0);
|
|
|
|
// TEST1 - SRB1 retxs are emptied first
|
|
int nof_pending_bytes = lch_handler.get_dl_retx(srsenb::RB_ID_SRB1);
|
|
TESTASSERT(test_retx_until_empty(lch_handler, srsenb::RB_ID_SRB1, 500) == nof_pending_bytes);
|
|
|
|
// TEST2 - DRB1 retxs are emptied
|
|
nof_pending_bytes = lch_handler.get_dl_retx(srsenb::RB_ID_DRB1);
|
|
TESTASSERT(test_retx_until_empty(lch_handler, srsenb::RB_ID_DRB1, 500) == nof_pending_bytes);
|
|
|
|
// TEST3 - SRB1 newtxs are emptied (PBR==infinity)
|
|
nof_pending_bytes = lch_handler.get_dl_tx(srsenb::RB_ID_SRB1);
|
|
TESTASSERT(test_newtx_until_empty(lch_handler, srsenb::RB_ID_SRB1, 500) == nof_pending_bytes);
|
|
|
|
// TEST4 - DRB2 has higher priority so it gets allocated until Bj <= 0
|
|
TESTASSERT(test_pdu_alloc_successful(lch_handler, pdu, srsenb::RB_ID_DRB2, 200) == SRSLTE_SUCCESS);
|
|
// Bj={0, infinity, 0, 12800, 200}
|
|
TESTASSERT(test_pdu_alloc_successful(lch_handler, pdu, srsenb::RB_ID_DRB2, 600) == SRSLTE_SUCCESS);
|
|
// Bj={0, infinity, 0, 256000, -400}
|
|
|
|
// TEST5 - DRB1 has lower prio, but DRB2 Bj <= 0.
|
|
for (uint32_t i = 0; i < 50; ++i) {
|
|
lch_handler.new_tti();
|
|
TESTASSERT(test_pdu_alloc_successful(lch_handler, pdu, srsenb::RB_ID_DRB1, 50) == SRSLTE_SUCCESS);
|
|
}
|
|
|
|
// TEST6 - new tti restores DRB2 Bj>=0, and DRB2 gets allocated
|
|
lch_handler.new_tti();
|
|
// Bj={0, infinity, 0, 256000, 8}
|
|
TESTASSERT(test_pdu_alloc_successful(lch_handler, pdu, srsenb::RB_ID_DRB2, 50) == SRSLTE_SUCCESS);
|
|
// Bj={0, infinity, 0, 256000, -42}
|
|
lch_handler.new_tti();
|
|
TESTASSERT(test_pdu_alloc_successful(lch_handler, pdu, srsenb::RB_ID_DRB1, 50) == SRSLTE_SUCCESS);
|
|
|
|
return SRSLTE_SUCCESS;
|
|
}
|
|
|
|
int main()
|
|
{
|
|
srsenb::set_randseed(seed);
|
|
srslte::console("This is the chosen seed: %u\n", seed);
|
|
srslte::logmap::get("TEST")->set_level(srslte::LOG_LEVEL_INFO);
|
|
|
|
TESTASSERT(test_lc_ch_pbr_infinity() == SRSLTE_SUCCESS);
|
|
TESTASSERT(test_lc_ch_pbr_finite() == SRSLTE_SUCCESS);
|
|
srslte::console("Success\n");
|
|
}
|