diff --git a/srsenb/hdr/stack/mac/sched.h b/srsenb/hdr/stack/mac/sched.h
index 9e4b40f17..3264b9e57 100644
--- a/srsenb/hdr/stack/mac/sched.h
+++ b/srsenb/hdr/stack/mac/sched.h
@@ -17,9 +17,9 @@
 #include "sched_ue.h"
 #include "srslte/common/log.h"
 #include "srslte/interfaces/sched_interface.h"
+#include <atomic>
 #include <map>
 #include <mutex>
-#include <pthread.h>
 #include <queue>
 
 namespace srsenb {
@@ -38,9 +38,8 @@ public:
   sched();
   ~sched() override;
 
-  void init(rrc_interface_mac* rrc);
+  void init(rrc_interface_mac* rrc, const sched_args_t& sched_cfg);
   int  cell_cfg(const std::vector<cell_cfg_t>& cell_cfg) override;
-  void set_sched_cfg(sched_args_t* sched_cfg);
   int  reset() final;
 
   int  ue_cfg(uint16_t rnti, const ue_cfg_t& ue_cfg) final;
@@ -103,7 +102,7 @@ protected:
 
   srslte::tti_point last_tti;
   std::mutex        sched_mutex;
-  bool              configured = false;
+  std::atomic<bool> configured;
 };
 
 } // namespace srsenb
diff --git a/srsenb/src/stack/mac/mac.cc b/srsenb/src/stack/mac/mac.cc
index 9eef56326..4bbaa1f71 100644
--- a/srsenb/src/stack/mac/mac.cc
+++ b/srsenb/src/stack/mac/mac.cc
@@ -58,10 +58,7 @@ bool mac::init(const mac_args_t&        args_,
 
     stack_task_queue = task_sched.make_task_queue();
 
-    scheduler.init(rrc);
-
-    // Set default scheduler configuration
-    scheduler.set_sched_cfg(&args.sched);
+    scheduler.init(rrc, args.sched);
 
     // Init softbuffer for SI messages
     common_buffers.resize(cells.size());
diff --git a/srsenb/src/stack/mac/sched.cc b/srsenb/src/stack/mac/sched.cc
index 25aa01517..e8f23ca27 100644
--- a/srsenb/src/stack/mac/sched.cc
+++ b/srsenb/src/stack/mac/sched.cc
@@ -37,9 +37,10 @@ sched::sched() {}
 
 sched::~sched() {}
 
-void sched::init(rrc_interface_mac* rrc_)
+void sched::init(rrc_interface_mac* rrc_, const sched_args_t& sched_cfg_)
 {
-  rrc = rrc_;
+  rrc       = rrc_;
+  sched_cfg = sched_cfg_;
 
   // Initialize first carrier scheduler
   carrier_schedulers.emplace_back(new carrier_sched{rrc, &ue_db, 0, &sched_results});
@@ -50,7 +51,7 @@ void sched::init(rrc_interface_mac* rrc_)
 int sched::reset()
 {
   std::lock_guard<std::mutex> lock(sched_mutex);
-  configured = false;
+  configured.store(false, std::memory_order_release);
   for (std::unique_ptr<carrier_sched>& c : carrier_schedulers) {
     c->reset();
   }
@@ -58,14 +59,7 @@ int sched::reset()
   return 0;
 }
 
-void sched::set_sched_cfg(sched_interface::sched_args_t* sched_cfg_)
-{
-  std::lock_guard<std::mutex> lock(sched_mutex);
-  if (sched_cfg_ != nullptr) {
-    sched_cfg = *sched_cfg_;
-  }
-}
-
+/// Called by rrc::init
 int sched::cell_cfg(const std::vector<sched_interface::cell_cfg_t>& cell_cfg)
 {
   std::lock_guard<std::mutex> lock(sched_mutex);
@@ -89,8 +83,7 @@ int sched::cell_cfg(const std::vector<sched_interface::cell_cfg_t>& cell_cfg)
     carrier_schedulers[i]->carrier_cfg(sched_cell_params[i]);
   }
 
-  configured = true;
-
+  configured.store(true, std::memory_order_release);
   return 0;
 }
 
@@ -292,7 +285,7 @@ std::array<bool, SRSLTE_MAX_CARRIERS> sched::get_scell_activation_mask(uint16_t
 // Downlink Scheduler API
 int sched::dl_sched(uint32_t tti_tx_dl, uint32_t enb_cc_idx, sched_interface::dl_sched_res_t& sched_result)
 {
-  if (!configured) {
+  if (not configured.load(std::memory_order_acquire)) {
     return 0;
   }
 
@@ -313,7 +306,7 @@ int sched::dl_sched(uint32_t tti_tx_dl, uint32_t enb_cc_idx, sched_interface::dl
 // Uplink Scheduler API
 int sched::ul_sched(uint32_t tti, uint32_t enb_cc_idx, srsenb::sched_interface::ul_sched_res_t& sched_result)
 {
-  if (!configured) {
+  if (not configured.load(std::memory_order_acquire)) {
     return 0;
   }
 
diff --git a/srsenb/test/mac/sched_ca_test.cc b/srsenb/test/mac/sched_ca_test.cc
index 0b6bbc9b9..65099afcf 100644
--- a/srsenb/test/mac/sched_ca_test.cc
+++ b/srsenb/test/mac/sched_ca_test.cc
@@ -115,7 +115,6 @@ int test_scell_activation(test_scell_activation_params params)
   sched_sim_event_generator generator;
   // Setup scheduler
   common_sched_tester tester;
-  tester.init(nullptr);
   tester.sim_cfg(sim_args);
 
   /* Simulation */
diff --git a/srsenb/test/mac/sched_test_common.cc b/srsenb/test/mac/sched_test_common.cc
index 20918097f..30ab4c61e 100644
--- a/srsenb/test/mac/sched_test_common.cc
+++ b/srsenb/test/mac/sched_test_common.cc
@@ -125,7 +125,7 @@ int common_sched_tester::sim_cfg(sim_sched_args args)
 {
   sim_args0 = std::move(args);
 
-  sched::set_sched_cfg(&sim_args0.sched_args);
+  sched::init(nullptr, sim_args0.sched_args);
 
   sched_sim.reset(new sched_sim_random{this, sim_args0.cell_cfg});
   sched_stats.reset(new sched_result_stats{sim_args0.cell_cfg});
diff --git a/srsenb/test/mac/sched_test_rand.cc b/srsenb/test/mac/sched_test_rand.cc
index 488e8102b..8d9c5138b 100644
--- a/srsenb/test/mac/sched_test_rand.cc
+++ b/srsenb/test/mac/sched_test_rand.cc
@@ -242,7 +242,6 @@ void test_scheduler_rand(sched_sim_events sim)
   sched_tester  tester;
   srsenb::sched my_sched;
 
-  tester.init(nullptr);
   tester.sim_cfg(std::move(sim.sim_args));
 
   tester.test_next_ttis(sim.tti_events);