diff --git a/srsenb/hdr/stack/mac/ue.h b/srsenb/hdr/stack/mac/ue.h
index 170e000b6..5fee69514 100644
--- a/srsenb/hdr/stack/mac/ue.h
+++ b/srsenb/hdr/stack/mac/ue.h
@@ -38,14 +38,15 @@ namespace srsenb {
 class ue : public srslte::read_pdu_interface, public srslte::pdu_queue::process_callback
 {
 public:
-  ue(uint16_t           rnti,
-     uint32_t           nof_prb,
-     sched_interface*   sched,
-     rrc_interface_mac* rrc_,
-     rlc_interface_mac* rlc,
-     srslte::log*       log_,
-     uint32_t           nof_rx_harq_proc = SRSLTE_FDD_NOF_HARQ,
-     uint32_t           nof_tx_harq_proc = SRSLTE_FDD_NOF_HARQ * SRSLTE_MAX_TB);
+  ue(uint16_t                 rnti,
+     uint32_t                 nof_prb,
+     sched_interface*         sched,
+     rrc_interface_mac*       rrc_,
+     rlc_interface_mac*       rlc,
+     phy_interface_stack_lte* phy_,
+     srslte::log*             log_,
+     uint32_t                 nof_rx_harq_proc = SRSLTE_FDD_NOF_HARQ,
+     uint32_t                 nof_tx_harq_proc = SRSLTE_FDD_NOF_HARQ * SRSLTE_MAX_TB);
   virtual ~ue();
 
   void reset();
@@ -140,10 +141,11 @@ private:
   srslte::sch_pdu   mac_msg_dl, mac_msg_ul;
   srslte::mch_pdu   mch_mac_msg_dl;
 
-  rlc_interface_mac* rlc   = nullptr;
-  rrc_interface_mac* rrc   = nullptr;
-  srslte::log*       log_h = nullptr;
-  sched_interface*   sched = nullptr;
+  rlc_interface_mac*       rlc   = nullptr;
+  rrc_interface_mac*       rrc   = nullptr;
+  phy_interface_stack_lte* phy   = nullptr;
+  srslte::log*             log_h = nullptr;
+  sched_interface*         sched = nullptr;
 
   bool conres_id_available = false;
 
diff --git a/srsenb/src/stack/mac/mac.cc b/srsenb/src/stack/mac/mac.cc
index 7a0ccf20b..084c80761 100644
--- a/srsenb/src/stack/mac/mac.cc
+++ b/srsenb/src/stack/mac/mac.cc
@@ -447,7 +447,7 @@ void mac::rach_detected(uint32_t tti, uint32_t enb_cc_idx, uint32_t preamble_idx
 
     // Create new UE
     if (ue_db.count(rnti) == 0) {
-      ue_db[rnti] = new ue(rnti, args.nof_prb, &scheduler, rrc_h, rlc_h, log_h, SRSLTE_FDD_NOF_HARQ);
+      ue_db[rnti] = new ue(rnti, args.nof_prb, &scheduler, rrc_h, rlc_h, phy_h, log_h, SRSLTE_FDD_NOF_HARQ);
     }
 
     // Set PCAP if available
@@ -859,7 +859,7 @@ void mac::write_mcch(sib_type2_s* sib2_, sib_type13_r9_s* sib13_, mcch_msg_s* mc
   mcch.pack(bref);
   current_mcch_length = bref.distance_bytes(&mcch_payload_buffer[1]);
   current_mcch_length = current_mcch_length + rlc_header_len;
-  ue_db[SRSLTE_MRNTI] = new ue(SRSLTE_MRNTI, args.nof_prb, &scheduler, rrc_h, rlc_h, log_h);
+  ue_db[SRSLTE_MRNTI] = new ue(SRSLTE_MRNTI, args.nof_prb, &scheduler, rrc_h, rlc_h, phy_h, log_h);
 
   rrc_h->add_user(SRSLTE_MRNTI, {});
 }
diff --git a/srsenb/src/stack/mac/ue.cc b/srsenb/src/stack/mac/ue.cc
index 61cafd0ef..f92c3da78 100644
--- a/srsenb/src/stack/mac/ue.cc
+++ b/srsenb/src/stack/mac/ue.cc
@@ -34,19 +34,21 @@
 
 namespace srsenb {
 
-ue::ue(uint16_t           rnti_,
-       uint32_t           nof_prb_,
-       sched_interface*   sched_,
-       rrc_interface_mac* rrc_,
-       rlc_interface_mac* rlc_,
-       srslte::log*       log_,
-       uint32_t           nof_rx_harq_proc_,
-       uint32_t           nof_tx_harq_proc_) :
+ue::ue(uint16_t                 rnti_,
+       uint32_t                 nof_prb_,
+       sched_interface*         sched_,
+       rrc_interface_mac*       rrc_,
+       rlc_interface_mac*       rlc_,
+       phy_interface_stack_lte* phy_,
+       srslte::log*             log_,
+       uint32_t                 nof_rx_harq_proc_,
+       uint32_t                 nof_tx_harq_proc_) :
   rnti(rnti_),
   nof_prb(nof_prb_),
   sched(sched_),
   rrc(rrc_),
   rlc(rlc_),
+  phy(phy_),
   log_h(log_),
   mac_msg_dl(20, log_),
   mch_mac_msg_dl(10, log_),
@@ -474,6 +476,7 @@ void ue::allocate_ce(srslte::sch_pdu* pdu, uint32_t lcid)
           active_scell_list[enb_ue_cc_map[enb_cc_idx]] = true;
         }
         if (enb_cc_idx == enb_ue_cc_map.size() and pdu->get()->set_scell_activation_cmd(active_scell_list)) {
+          phy->set_activation_deactivation_scell(rnti, active_scell_list);
           Info("CE:    Added SCell Activation CE.\n");
           // Allocate and initialize Rx/Tx softbuffers for new carriers (exclude PCell)
           allocate_cc_buffers(active_scell_list.size() - 1);