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srsRAN_4G/srsenb/hdr/stack/mac/schedulers/sched_base.h

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Refactoring of scheduling algorithms - Use single interface for both DL and UL - Wrote helper functions for tasks that are common to different algorithms - created subfolder for all scheduling algorithms
4 years ago
/**
*
* \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.
*
*/
#ifndef SRSLTE_SCHED_BASE_H
#define SRSLTE_SCHED_BASE_H
#include "srsenb/hdr/stack/mac/sched_grid.h"
namespace srsenb {
/**
* Base class for scheduler algorithms implementations
*/
class sched_base
{
public:
virtual ~sched_base() = default;
use unique_ptr for sched_ue database in scheduler. This will minimize the time spent locking while adding new users
4 years ago
virtual void sched_dl_users(sched_ue_list& ue_db, sf_sched* tti_sched) = 0;
virtual void sched_ul_users(sched_ue_list& ue_db, sf_sched* tti_sched) = 0;
Refactoring of scheduling algorithms - Use single interface for both DL and UL - Wrote helper functions for tasks that are common to different algorithms - created subfolder for all scheduling algorithms
4 years ago
protected:
Port enb specific classes to use srslog (#2155) * - Started porting the enb PHY layer to use srslog loggers. - Updated srslog to manage the none level. * Finished porting enb phy layer including the NR part. * Ported MAC, GTPU, PDCP, RLC and S1AP enb classes to use srslog. * Use new stack logger. * Ported the enb RRC clases to use srslog. * Remove unused log macros. * Replace loggers in sched, sched_carrier, sched_helpers. * Replaced loggers in sched grid. * Replaced loggers in sched harq. * Replaced loggers in sched ue. * Replaced loggers in sched ue ctrl. * Replace loggers in sched ue ctrl TPC. * Replaced loggers in sched subclasses. * Replaced loggers in rrc_meascfg_test * Configure loggers in rrc_mobility_test. * Fix compilation errors left out after the rebase. * - Implement a custom log sink that will serve as a test spy to intercept and count the number of error and warning log entries. - Adapt the erab_test_setup and rrc_mobility tests to use this new class and make them pass again. * - Remove trailing new lines introduced in the rebase. - Ported the sched_ue_cell class to srslog. * Remove unused log member. * Ported mac tests to srslog. * - Removed remaining trailing newlines from log entries. * Fix compiler errors detected in CI. * Fix another static variable without definition passed to log lines. * Fixed a bug in srslog::flush that would never end when the backend queue is full. * Fetch the RRC logger instead of injecting it in the constructor.
4 years ago
srslog::basic_logger& logger = srslog::fetch_basic_logger("MAC");
Refactoring of scheduling algorithms - Use single interface for both DL and UL - Wrote helper functions for tasks that are common to different algorithms - created subfolder for all scheduling algorithms
4 years ago
};
/**************** Helper methods ****************/
[sched, feature enhancement] - allow variable nof prbs allocated per SIB / Paging message
4 years ago
rbg_interval find_empty_rbg_interval(uint32_t max_nof_rbgs, const rbgmask_t& current_mask);
Refactoring of scheduling algorithms - Use single interface for both DL and UL - Wrote helper functions for tasks that are common to different algorithms - created subfolder for all scheduling algorithms
4 years ago
/**
sched: added checks for localized RBG assignment in case of DCI format1A
4 years ago
* Finds a bitmask of available RBG resources for a given UE in a greedy fashion
* @param ue UE being allocated
[sched, feature enhancement] - allow variable nof prbs allocated per SIB / Paging message
4 years ago
* @param is_contiguous whether to find a contiguous range of RBGs
sched: added checks for localized RBG assignment in case of DCI format1A
4 years ago
* @param current_mask bitmask of occupied RBGs, where to search for available RBGs
* @return bitmask of found RBGs. If a valid mask wasn't found, bitmask::size() == 0
Refactoring of scheduling algorithms - Use single interface for both DL and UL - Wrote helper functions for tasks that are common to different algorithms - created subfolder for all scheduling algorithms
4 years ago
*/
[sched, feature enhancement] - allow variable nof prbs allocated per SIB / Paging message
4 years ago
rbgmask_t compute_rbgmask_greedy(uint32_t max_nof_rbgs, bool is_contiguous, const rbgmask_t& current_mask);
Refactoring of scheduling algorithms - Use single interface for both DL and UL - Wrote helper functions for tasks that are common to different algorithms - created subfolder for all scheduling algorithms
4 years ago
/**
* Finds a range of L contiguous PRBs that are empty
* @param L Size of the requested UL PRBs
* @param current_mask input prb mask where to search for available PRBs
* @return found interval of PRBs
*/
prb_interval find_contiguous_ul_prbs(uint32_t L, const prbmask_t& current_mask);
const dl_harq_proc* get_dl_retx_harq(sched_ue& user, sf_sched* tti_sched);
const dl_harq_proc* get_dl_newtx_harq(sched_ue& user, sf_sched* tti_sched);
const ul_harq_proc* get_ul_retx_harq(sched_ue& user, sf_sched* tti_sched);
const ul_harq_proc* get_ul_newtx_harq(sched_ue& user, sf_sched* tti_sched);
/// Helper methods to allocate resources in subframe
sched refactor - use simple enum to represent allocation result. Refactored logging messages when allocation fails.
4 years ago
alloc_result try_dl_retx_alloc(sf_sched& tti_sched, sched_ue& ue, const dl_harq_proc& h);
alloc_result
try_dl_newtx_alloc_greedy(sf_sched& tti_sched, sched_ue& ue, const dl_harq_proc& h, rbgmask_t* result_mask = nullptr);
alloc_result try_ul_retx_alloc(sf_sched& tti_sched, sched_ue& ue, const ul_harq_proc& h);
Refactoring of scheduling algorithms - Use single interface for both DL and UL - Wrote helper functions for tasks that are common to different algorithms - created subfolder for all scheduling algorithms
4 years ago
} // namespace srsenb
#endif // SRSLTE_SCHED_BASE_H