diff --git a/src/asn1c/AltitudeAndDirection.c b/src/asn1c/AltitudeAndDirection.c
new file mode 100644
index 0000000..53dcda3
--- /dev/null
+++ b/src/asn1c/AltitudeAndDirection.c
@@ -0,0 +1,261 @@
+/*
+ * Generated by asn1c-0.9.28 (http://lionet.info/asn1c)
+ * From ASN.1 module "HNBAP-IEs"
+ * 	found in "../../asn1/hnbap/HNBAP-IEs.asn"
+ * 	`asn1c -gen-PER -fnative-types`
+ */
+
+#include "AltitudeAndDirection.h"
+
+static int
+directionOfAltitude_2_constraint(asn_TYPE_descriptor_t *td, const void *sptr,
+			asn_app_constraint_failed_f *ctfailcb, void *app_key) {
+	/* Replace with underlying type checker */
+	td->check_constraints = asn_DEF_NativeEnumerated.check_constraints;
+	return td->check_constraints(td, sptr, ctfailcb, app_key);
+}
+
+/*
+ * This type is implemented using NativeEnumerated,
+ * so here we adjust the DEF accordingly.
+ */
+static void
+directionOfAltitude_2_inherit_TYPE_descriptor(asn_TYPE_descriptor_t *td) {
+	td->free_struct    = asn_DEF_NativeEnumerated.free_struct;
+	td->print_struct   = asn_DEF_NativeEnumerated.print_struct;
+	td->check_constraints = asn_DEF_NativeEnumerated.check_constraints;
+	td->ber_decoder    = asn_DEF_NativeEnumerated.ber_decoder;
+	td->der_encoder    = asn_DEF_NativeEnumerated.der_encoder;
+	td->xer_decoder    = asn_DEF_NativeEnumerated.xer_decoder;
+	td->xer_encoder    = asn_DEF_NativeEnumerated.xer_encoder;
+	td->uper_decoder   = asn_DEF_NativeEnumerated.uper_decoder;
+	td->uper_encoder   = asn_DEF_NativeEnumerated.uper_encoder;
+	td->aper_decoder   = asn_DEF_NativeEnumerated.aper_decoder;
+	td->aper_encoder   = asn_DEF_NativeEnumerated.aper_encoder;
+	if(!td->per_constraints)
+		td->per_constraints = asn_DEF_NativeEnumerated.per_constraints;
+	td->elements       = asn_DEF_NativeEnumerated.elements;
+	td->elements_count = asn_DEF_NativeEnumerated.elements_count;
+     /* td->specifics      = asn_DEF_NativeEnumerated.specifics;	// Defined explicitly */
+}
+
+static void
+directionOfAltitude_2_free(asn_TYPE_descriptor_t *td,
+		void *struct_ptr, int contents_only) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	td->free_struct(td, struct_ptr, contents_only);
+}
+
+static int
+directionOfAltitude_2_print(asn_TYPE_descriptor_t *td, const void *struct_ptr,
+		int ilevel, asn_app_consume_bytes_f *cb, void *app_key) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->print_struct(td, struct_ptr, ilevel, cb, app_key);
+}
+
+static asn_dec_rval_t
+directionOfAltitude_2_decode_ber(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		void **structure, const void *bufptr, size_t size, int tag_mode) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->ber_decoder(opt_codec_ctx, td, structure, bufptr, size, tag_mode);
+}
+
+static asn_enc_rval_t
+directionOfAltitude_2_encode_der(asn_TYPE_descriptor_t *td,
+		void *structure, int tag_mode, ber_tlv_tag_t tag,
+		asn_app_consume_bytes_f *cb, void *app_key) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->der_encoder(td, structure, tag_mode, tag, cb, app_key);
+}
+
+static asn_dec_rval_t
+directionOfAltitude_2_decode_xer(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		void **structure, const char *opt_mname, const void *bufptr, size_t size) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->xer_decoder(opt_codec_ctx, td, structure, opt_mname, bufptr, size);
+}
+
+static asn_enc_rval_t
+directionOfAltitude_2_encode_xer(asn_TYPE_descriptor_t *td, void *structure,
+		int ilevel, enum xer_encoder_flags_e flags,
+		asn_app_consume_bytes_f *cb, void *app_key) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->xer_encoder(td, structure, ilevel, flags, cb, app_key);
+}
+
+static asn_dec_rval_t
+directionOfAltitude_2_decode_uper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints, void **structure, asn_per_data_t *per_data) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->uper_decoder(opt_codec_ctx, td, constraints, structure, per_data);
+}
+
+static asn_enc_rval_t
+directionOfAltitude_2_encode_uper(asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints,
+		void *structure, asn_per_outp_t *per_out) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->uper_encoder(td, constraints, structure, per_out);
+}
+
+static asn_enc_rval_t
+directionOfAltitude_2_encode_aper(asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints,
+		void *structure, asn_per_outp_t *per_out) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->aper_encoder(td, constraints, structure, per_out);
+}
+
+static asn_dec_rval_t
+directionOfAltitude_2_decode_aper(asn_codec_ctx_t *opt_codec_ctx, asn_TYPE_descriptor_t *td,
+		asn_per_constraints_t *constraints, void **structure, asn_per_data_t *per_data) {
+	directionOfAltitude_2_inherit_TYPE_descriptor(td);
+	return td->aper_decoder(opt_codec_ctx, td, constraints, structure, per_data);
+}
+
+static int
+memb_altitude_constraint_1(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 >= 0l && value <= 32767l)) {
+		/* 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_directionOfAltitude_constr_2 GCC_NOTUSED = {
+	{ APC_CONSTRAINED,	 1,  1,  0l,  1l }	/* (0..1) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static asn_per_constraints_t asn_PER_memb_altitude_constr_5 GCC_NOTUSED = {
+	{ APC_CONSTRAINED,	 15,  15,  0l,  32767l }	/* (0..32767) */,
+	{ APC_UNCONSTRAINED,	-1, -1,  0,  0 },
+	0, 0	/* No PER value map */
+};
+static const asn_INTEGER_enum_map_t asn_MAP_directionOfAltitude_value2enum_2[] = {
+	{ 0,	6,	"height" },
+	{ 1,	5,	"depth" }
+};
+static const unsigned int asn_MAP_directionOfAltitude_enum2value_2[] = {
+	1,	/* depth(1) */
+	0	/* height(0) */
+};
+static const asn_INTEGER_specifics_t asn_SPC_directionOfAltitude_specs_2 = {
+	asn_MAP_directionOfAltitude_value2enum_2,	/* "tag" => N; sorted by tag */
+	asn_MAP_directionOfAltitude_enum2value_2,	/* N => "tag"; sorted by N */
+	2,	/* Number of elements in the maps */
+	0,	/* Enumeration is not extensible */
+	1,	/* Strict enumeration */
+	0,	/* Native long size */
+	0
+};
+static const ber_tlv_tag_t asn_DEF_directionOfAltitude_tags_2[] = {
+	(ASN_TAG_CLASS_CONTEXT | (0 << 2)),
+	(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
+};
+static /* Use -fall-defs-global to expose */
+asn_TYPE_descriptor_t asn_DEF_directionOfAltitude_2 = {
+	"directionOfAltitude",
+	"directionOfAltitude",
+	directionOfAltitude_2_free,
+	directionOfAltitude_2_print,
+	directionOfAltitude_2_constraint,
+	directionOfAltitude_2_decode_ber,
+	directionOfAltitude_2_encode_der,
+	directionOfAltitude_2_decode_xer,
+	directionOfAltitude_2_encode_xer,
+	directionOfAltitude_2_decode_uper,
+	directionOfAltitude_2_encode_uper,
+	directionOfAltitude_2_decode_aper,
+	directionOfAltitude_2_encode_aper,
+	0,	/* Use generic outmost tag fetcher */
+	asn_DEF_directionOfAltitude_tags_2,
+	sizeof(asn_DEF_directionOfAltitude_tags_2)
+		/sizeof(asn_DEF_directionOfAltitude_tags_2[0]) - 1, /* 1 */
+	asn_DEF_directionOfAltitude_tags_2,	/* Same as above */
+	sizeof(asn_DEF_directionOfAltitude_tags_2)
+		/sizeof(asn_DEF_directionOfAltitude_tags_2[0]), /* 2 */
+	&asn_PER_type_directionOfAltitude_constr_2,
+	0, 0,	/* Defined elsewhere */
+	&asn_SPC_directionOfAltitude_specs_2	/* Additional specs */
+};
+
+static asn_TYPE_member_t asn_MBR_AltitudeAndDirection_1[] = {
+	{ ATF_NOFLAGS, 0, offsetof(struct AltitudeAndDirection, directionOfAltitude),
+		(ASN_TAG_CLASS_CONTEXT | (0 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_directionOfAltitude_2,
+		0,	/* Defer constraints checking to the member type */
+		0,	/* No PER visible constraints */
+		0,
+		"directionOfAltitude"
+		},
+	{ ATF_NOFLAGS, 0, offsetof(struct AltitudeAndDirection, altitude),
+		(ASN_TAG_CLASS_CONTEXT | (1 << 2)),
+		-1,	/* IMPLICIT tag at current level */
+		&asn_DEF_NativeInteger,
+		memb_altitude_constraint_1,
+		&asn_PER_memb_altitude_constr_5,
+		0,
+		"altitude"
+		},
+};
+static const ber_tlv_tag_t asn_DEF_AltitudeAndDirection_tags_1[] = {
+	(ASN_TAG_CLASS_UNIVERSAL | (16 << 2))
+};
+static const asn_TYPE_tag2member_t asn_MAP_AltitudeAndDirection_tag2el_1[] = {
+    { (ASN_TAG_CLASS_CONTEXT | (0 << 2)), 0, 0, 0 }, /* directionOfAltitude */
+    { (ASN_TAG_CLASS_CONTEXT | (1 << 2)), 1, 0, 0 } /* altitude */
+};
+static asn_SEQUENCE_specifics_t asn_SPC_AltitudeAndDirection_specs_1 = {
+	sizeof(struct AltitudeAndDirection),
+	offsetof(struct AltitudeAndDirection, _asn_ctx),
+	asn_MAP_AltitudeAndDirection_tag2el_1,
+	2,	/* Count of tags in the map */
+	0, 0, 0,	/* Optional elements (not needed) */
+	1,	/* Start extensions */
+	3	/* Stop extensions */
+};
+asn_TYPE_descriptor_t asn_DEF_AltitudeAndDirection = {
+	"AltitudeAndDirection",
+	"AltitudeAndDirection",
+	SEQUENCE_free,
+	SEQUENCE_print,
+	SEQUENCE_constraint,
+	SEQUENCE_decode_ber,
+	SEQUENCE_encode_der,
+	SEQUENCE_decode_xer,
+	SEQUENCE_encode_xer,
+	SEQUENCE_decode_uper,
+	SEQUENCE_encode_uper,
+	SEQUENCE_decode_aper,
+	SEQUENCE_encode_aper,
+	0,	/* Use generic outmost tag fetcher */
+	asn_DEF_AltitudeAndDirection_tags_1,
+	sizeof(asn_DEF_AltitudeAndDirection_tags_1)
+		/sizeof(asn_DEF_AltitudeAndDirection_tags_1[0]), /* 1 */
+	asn_DEF_AltitudeAndDirection_tags_1,	/* Same as above */
+	sizeof(asn_DEF_AltitudeAndDirection_tags_1)
+		/sizeof(asn_DEF_AltitudeAndDirection_tags_1[0]), /* 1 */
+	0,	/* No PER visible constraints */
+	asn_MBR_AltitudeAndDirection_1,
+	2,	/* Elements count */
+	&asn_SPC_AltitudeAndDirection_specs_1	/* Additional specs */
+};
+