diff --git a/e2sim/ASN1c/RelativeNarrowbandTxPower.c b/e2sim/ASN1c/RelativeNarrowbandTxPower.c
new file mode 100644
index 0000000..e24c744
--- /dev/null
+++ b/e2sim/ASN1c/RelativeNarrowbandTxPower.c
@@ -0,0 +1,267 @@
+/*****************************************************************************
+#                                                                            *
+# Copyright 2019 AT&T Intellectual Property                                  *
+#                                                                            *
+# Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0                            *
+#                                                                            *
+# 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.                                             *
+#                                                                            *
+******************************************************************************/
+
+/*
+ * Generated by asn1c-0.9.29 (http://lionet.info/asn1c)
+ * From ASN.1 module "X2AP-IEs"
+ * 	found in "../../asnFiles/X2AP-IEs.asn"
+ * 	`asn1c -fcompound-names -fincludes-quoted -fno-include-deps -findirect-choice -gen-PER -no-gen-OER -D.`
+ */
+
+#include "RelativeNarrowbandTxPower.h"
+
+#include "ProtocolExtensionContainer.h"
+/*
+ * This type is implemented using NativeEnumerated,
+ * so here we adjust the DEF accordingly.
+ */
+static int
+memb_rNTP_PerPRB_constraint_1(const asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	const BIT_STRING_t *st = (const BIT_STRING_t *)sptr;
+	size_t size;
+	
+	if(!sptr) {
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	if(st->size > 0) {
+		/* Size in bits */
+		size = 8 * st->size - (st->bits_unused & 0x07);
+	} else {
+		size = 0;
+	}
+	
+	if((size >= 6 && size <= 110)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static int
+memb_p_B_constraint_1(const asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	long value;
+	
+	if(!sptr) {
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const long *)sptr;
+	
+	if((value >= 0 && value <= 3)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static int
+memb_pDCCH_InterferenceImpact_constraint_1(const asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	long value;
+	
+	if(!sptr) {
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: value not given (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+	
+	value = *(const long *)sptr;
+	
+	if((value >= 0 && value <= 4)) {
+		/* Constraint check succeeded */
+		return 0;
+	} else {
+		ASN__CTFAIL(app_key, td, sptr,
+			"%s: constraint failed (%s:%d)",
+			td->name, __FILE__, __LINE__);
+		return -1;
+	}
+}
+
+static asn_per_constraints_t asn_PER_type_numberOfCellSpecificAntennaPorts_constr_4 CC_NOTUSED = {
+	{ APC_CONSTRAINED | APC_EXTENSIBLE,  2,  2,  0,  2 }	/* (0..2,...) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_rNTP_PerPRB_constr_2 CC_NOTUSED = {
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	{ APC_CONSTRAINED | APC_EXTENSIBLE,  7,  7,  6,  110 }	/* (SIZE(6..110,...)) */,
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_p_B_constr_9 CC_NOTUSED = {
+	{ APC_CONSTRAINED | APC_EXTENSIBLE,  2,  2,  0,  3 }	/* (0..3,...) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_pDCCH_InterferenceImpact_constr_10 CC_NOTUSED = {
+	{ APC_CONSTRAINED | APC_EXTENSIBLE,  3,  3,  0,  4 }	/* (0..4,...) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static const asn_INTEGER_enum_map_t asn_MAP_numberOfCellSpecificAntennaPorts_value2enum_4[] = {
+	{ 0,	3,	"one" },
+	{ 1,	3,	"two" },
+	{ 2,	4,	"four" }
+	/* This list is extensible */
+};
+static const unsigned int asn_MAP_numberOfCellSpecificAntennaPorts_enum2value_4[] = {
+	2,	/* four(2) */
+	0,	/* one(0) */
+	1	/* two(1) */
+	/* This list is extensible */
+};
+static const asn_INTEGER_specifics_t asn_SPC_numberOfCellSpecificAntennaPorts_specs_4 = {
+	asn_MAP_numberOfCellSpecificAntennaPorts_value2enum_4,	/* "tag" => N; sorted by tag */
+	asn_MAP_numberOfCellSpecificAntennaPorts_enum2value_4,	/* N => "tag"; sorted by N */
+	3,	/* Number of elements in the maps */
+	4,	/* Extensions before this member */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
+};
+static const ber_tlv_tag_t asn_DEF_numberOfCellSpecificAntennaPorts_tags_4[] = {
+	(ASN_TAG_CLASS_CONTEXT | (2 << 2)),
+	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
+};
+static /* Use -fall-defs-global to expose */
+asn_TYPE_descriptor_t asn_DEF_numberOfCellSpecificAntennaPorts_4 = {
+	"numberOfCellSpecificAntennaPorts",
+	"numberOfCellSpecificAntennaPorts",
+	&asn_OP_NativeEnumerated,
+	asn_DEF_numberOfCellSpecificAntennaPorts_tags_4,
+	sizeof(asn_DEF_numberOfCellSpecificAntennaPorts_tags_4)
+		/sizeof(asn_DEF_numberOfCellSpecificAntennaPorts_tags_4[0]) - 1, /* 1 */
+	asn_DEF_numberOfCellSpecificAntennaPorts_tags_4,	/* Same as above */
+	sizeof(asn_DEF_numberOfCellSpecificAntennaPorts_tags_4)
+		/sizeof(asn_DEF_numberOfCellSpecificAntennaPorts_tags_4[0]), /* 2 */
+	{ 0, &asn_PER_type_numberOfCellSpecificAntennaPorts_constr_4, NativeEnumerated_constraint },
+	0, 0,	/* Defined elsewhere */
+	&asn_SPC_numberOfCellSpecificAntennaPorts_specs_4	/* Additional specs */
+};
+
+asn_TYPE_member_t asn_MBR_RelativeNarrowbandTxPower_1[] = {
+	{ ATF_NOFLAGS, 0, offsetof(struct RelativeNarrowbandTxPower, rNTP_PerPRB),
+		(ASN_TAG_CLASS_CONTEXT | (0 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_BIT_STRING,
+		0,
+		{ 0, &asn_PER_memb_rNTP_PerPRB_constr_2,  memb_rNTP_PerPRB_constraint_1 },
+		0, 0, /* No default value */
+		"rNTP-PerPRB"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct RelativeNarrowbandTxPower, rNTP_Threshold),
+		(ASN_TAG_CLASS_CONTEXT | (1 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_RNTP_Threshold,
+		0,
+		{ 0, 0, 0 },
+		0, 0, /* No default value */
+		"rNTP-Threshold"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct RelativeNarrowbandTxPower, numberOfCellSpecificAntennaPorts),
+		(ASN_TAG_CLASS_CONTEXT | (2 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_numberOfCellSpecificAntennaPorts_4,
+		0,
+		{ 0, 0, 0 },
+		0, 0, /* No default value */
+		"numberOfCellSpecificAntennaPorts"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct RelativeNarrowbandTxPower, p_B),
+		(ASN_TAG_CLASS_CONTEXT | (3 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_NativeInteger,
+		0,
+		{ 0, &asn_PER_memb_p_B_constr_9,  memb_p_B_constraint_1 },
+		0, 0, /* No default value */
+		"p-B"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct RelativeNarrowbandTxPower, pDCCH_InterferenceImpact),
+		(ASN_TAG_CLASS_CONTEXT | (4 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_NativeInteger,
+		0,
+		{ 0, &asn_PER_memb_pDCCH_InterferenceImpact_constr_10,  memb_pDCCH_InterferenceImpact_constraint_1 },
+		0, 0, /* No default value */
+		"pDCCH-InterferenceImpact"
+		},
+	{ ATF_POINTER, 1, offsetof(struct RelativeNarrowbandTxPower, iE_Extensions),
+		(ASN_TAG_CLASS_CONTEXT | (5 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_ProtocolExtensionContainer_170P184,
+		0,
+		{ 0, 0, 0 },
+		0, 0, /* No default value */
+		"iE-Extensions"
+		},
+};
+static const int asn_MAP_RelativeNarrowbandTxPower_oms_1[] = { 5 };
+static const ber_tlv_tag_t asn_DEF_RelativeNarrowbandTxPower_tags_1[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (16 << 2))
+};
+static const asn_TYPE_tag2member_t asn_MAP_RelativeNarrowbandTxPower_tag2el_1[] = {
+    { (ASN_TAG_CLASS_CONTEXT | (0 << 2)), 0, 0, 0 }, /* rNTP-PerPRB */
+    { (ASN_TAG_CLASS_CONTEXT | (1 << 2)), 1, 0, 0 }, /* rNTP-Threshold */
+    { (ASN_TAG_CLASS_CONTEXT | (2 << 2)), 2, 0, 0 }, /* numberOfCellSpecificAntennaPorts */
+    { (ASN_TAG_CLASS_CONTEXT | (3 << 2)), 3, 0, 0 }, /* p-B */
+    { (ASN_TAG_CLASS_CONTEXT | (4 << 2)), 4, 0, 0 }, /* pDCCH-InterferenceImpact */
+    { (ASN_TAG_CLASS_CONTEXT | (5 << 2)), 5, 0, 0 } /* iE-Extensions */
+};
+asn_SEQUENCE_specifics_t asn_SPC_RelativeNarrowbandTxPower_specs_1 = {
+	sizeof(struct RelativeNarrowbandTxPower),
+	offsetof(struct RelativeNarrowbandTxPower, _asn_ctx),
+	asn_MAP_RelativeNarrowbandTxPower_tag2el_1,
+	6,	/* Count of tags in the map */
+	asn_MAP_RelativeNarrowbandTxPower_oms_1,	/* Optional members */
+	1, 0,	/* Root/Additions */
+	6,	/* First extension addition */
+};
+asn_TYPE_descriptor_t asn_DEF_RelativeNarrowbandTxPower = {
+	"RelativeNarrowbandTxPower",
+	"RelativeNarrowbandTxPower",
+	&asn_OP_SEQUENCE,
+	asn_DEF_RelativeNarrowbandTxPower_tags_1,
+	sizeof(asn_DEF_RelativeNarrowbandTxPower_tags_1)
+		/sizeof(asn_DEF_RelativeNarrowbandTxPower_tags_1[0]), /* 1 */
+	asn_DEF_RelativeNarrowbandTxPower_tags_1,	/* Same as above */
+	sizeof(asn_DEF_RelativeNarrowbandTxPower_tags_1)
+		/sizeof(asn_DEF_RelativeNarrowbandTxPower_tags_1[0]), /* 1 */
+	{ 0, 0, SEQUENCE_constraint },
+	asn_MBR_RelativeNarrowbandTxPower_1,
+	6,	/* Elements count */
+	&asn_SPC_RelativeNarrowbandTxPower_specs_1	/* Additional specs */
+};
+