diff --git a/openair2/LAYER2/NR_MAC_UE/nr_l1_helpers.h b/openair2/LAYER2/NR_MAC_UE/nr_l1_helpers.h
new file mode 100755
index 0000000000..7e94c1aef7
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+++ b/openair2/LAYER2/NR_MAC_UE/nr_l1_helpers.h
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+void get_num_re_dmrs(nfapi_nr_ue_pusch_pdu_t *pusch_pdu,
+                     uint8_t *nb_dmrs_re_per_rb,
+                     uint16_t *number_dmrs_symbols);
+
+/** \brief Function for UE/PHY to compute PUSCH transmit power in power-control procedure.
+    @param Mod_id Module id of UE
+    @returns Po_NOMINAL_PUSCH (PREAMBLE_RECEIVED_TARGET_POWER+DELTA_PREAMBLE
+*/
+int nr_get_Po_NOMINAL_PUSCH(NR_PRACH_RESOURCES_t *prach_resources, module_id_t module_idP, uint8_t CC_id);
+
+/** \brief Function to compute DELTA_PREAMBLE from 38.321 subclause 7.3
+   (for RA power ramping procedure and Msg3 PUSCH power control policy)
+    @param Mod_id Module id of UE
+    @returns DELTA_PREAMBLE
+*/
+int8_t nr_get_DELTA_PREAMBLE(module_id_t mod_id, int CC_id, uint16_t prach_format);
+
+/** \brief Function to compute configured maximum output power according to clause 6.2.4 of 3GPP TS 38.101-1 version 16.5.0 Release 16
+    @param Mod_id Module id of UE
+*/
+long nr_get_Pcmax(module_id_t mod_id);
+/** @}*/