diff --git a/src/main/java/org.onosproject.xran/codecs/pdu/SeNBAdd.java b/src/main/java/org.onosproject.xran/codecs/pdu/SeNBAdd.java
new file mode 100644
index 0000000..d86cf6d
--- /dev/null
+++ b/src/main/java/org.onosproject.xran/codecs/pdu/SeNBAdd.java
@@ -0,0 +1,199 @@
+/**
+ * This class file was automatically generated by jASN1 v1.8.0 (http://www.openmuc.org)
+ */
+package org.onosproject.xran.codecs.pdu;
+
+import org.onosproject.xran.codecs.api.CRNTI;
+import org.onosproject.xran.codecs.api.ECGI;
+import org.openmuc.jasn1.ber.BerByteArrayOutputStream;
+import org.openmuc.jasn1.ber.BerLength;
+import org.openmuc.jasn1.ber.BerTag;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Serializable;
+
+
+public class SeNBAdd implements Serializable {
+
+	private static final long serialVersionUID = 1L;
+
+	public static final BerTag tag = new BerTag(BerTag.UNIVERSAL_CLASS, BerTag.CONSTRUCTED, 16);
+
+	public byte[] code = null;
+	private CRNTI crnti = null;
+	private ECGI mEcgi = null;
+	private ECGI sEcgi = null;
+	
+	public SeNBAdd() {
+	}
+
+	public SeNBAdd(byte[] code) {
+		this.code = code;
+	}
+
+	public void setCrnti(CRNTI crnti) {
+		this.crnti = crnti;
+	}
+
+	public CRNTI getCrnti() {
+		return crnti;
+	}
+
+	public void setMEcgi(ECGI mEcgi) {
+		this.mEcgi = mEcgi;
+	}
+
+	public ECGI getMEcgi() {
+		return mEcgi;
+	}
+
+	public void setSEcgi(ECGI sEcgi) {
+		this.sEcgi = sEcgi;
+	}
+
+	public ECGI getSEcgi() {
+		return sEcgi;
+	}
+
+	public int encode(BerByteArrayOutputStream os) throws IOException {
+		return encode(os, true);
+	}
+
+	public int encode(BerByteArrayOutputStream os, boolean withTag) throws IOException {
+
+		if (code != null) {
+			for (int i = code.length - 1; i >= 0; i--) {
+				os.write(code[i]);
+			}
+			if (withTag) {
+				return tag.encode(os) + code.length;
+			}
+			return code.length;
+		}
+
+		int codeLength = 0;
+		codeLength += sEcgi.encode(os, false);
+		// write tag: CONTEXT_CLASS, CONSTRUCTED, 2
+		os.write(0xA2);
+		codeLength += 1;
+		
+		codeLength += mEcgi.encode(os, false);
+		// write tag: CONTEXT_CLASS, CONSTRUCTED, 1
+		os.write(0xA1);
+		codeLength += 1;
+		
+		codeLength += crnti.encode(os, false);
+		// write tag: CONTEXT_CLASS, PRIMITIVE, 0
+		os.write(0x80);
+		codeLength += 1;
+		
+		codeLength += BerLength.encodeLength(os, codeLength);
+
+		if (withTag) {
+			codeLength += tag.encode(os);
+		}
+
+		return codeLength;
+
+	}
+
+	public int decode(InputStream is) throws IOException {
+		return decode(is, true);
+	}
+
+	public int decode(InputStream is, boolean withTag) throws IOException {
+		int codeLength = 0;
+		int subCodeLength = 0;
+		BerTag berTag = new BerTag();
+
+		if (withTag) {
+			codeLength += tag.decodeAndCheck(is);
+		}
+
+		BerLength length = new BerLength();
+		codeLength += length.decode(is);
+
+		int totalLength = length.val;
+		codeLength += totalLength;
+
+		subCodeLength += berTag.decode(is);
+		if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.PRIMITIVE, 0)) {
+			crnti = new CRNTI();
+			subCodeLength += crnti.decode(is, false);
+			subCodeLength += berTag.decode(is);
+		}
+		else {
+			throw new IOException("Tag does not match the mandatory sequence element tag.");
+		}
+		
+		if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 1)) {
+			mEcgi = new ECGI();
+			subCodeLength += mEcgi.decode(is, false);
+			subCodeLength += berTag.decode(is);
+		}
+		else {
+			throw new IOException("Tag does not match the mandatory sequence element tag.");
+		}
+		
+		if (berTag.equals(BerTag.CONTEXT_CLASS, BerTag.CONSTRUCTED, 2)) {
+			sEcgi = new ECGI();
+			subCodeLength += sEcgi.decode(is, false);
+			if (subCodeLength == totalLength) {
+				return codeLength;
+			}
+		}
+		throw new IOException("Unexpected end of sequence, length tag: " + totalLength + ", actual sequence length: " + subCodeLength);
+
+		
+	}
+
+	public void encodeAndSave(int encodingSizeGuess) throws IOException {
+		BerByteArrayOutputStream os = new BerByteArrayOutputStream(encodingSizeGuess);
+		encode(os, false);
+		code = os.getArray();
+	}
+
+	public String toString() {
+		StringBuilder sb = new StringBuilder();
+		appendAsString(sb, 0);
+		return sb.toString();
+	}
+
+	public void appendAsString(StringBuilder sb, int indentLevel) {
+
+		sb.append("{");
+		sb.append("\n");
+		for (int i = 0; i < indentLevel + 1; i++) {
+			sb.append("\t");
+		}
+		if (crnti != null) {
+			sb.append("\"crnti\": ").append(crnti);
+		}
+		
+		sb.append(",\n");
+		for (int i = 0; i < indentLevel + 1; i++) {
+			sb.append("\t");
+		}
+		if (mEcgi != null) {
+			sb.append("\"mEcgi\": ");
+			mEcgi.appendAsString(sb, indentLevel + 1);
+		}
+		
+		sb.append(",\n");
+		for (int i = 0; i < indentLevel + 1; i++) {
+			sb.append("\t");
+		}
+		if (sEcgi != null) {
+			sb.append("\"sEcgi\": ");
+			sEcgi.appendAsString(sb, indentLevel + 1);
+		}
+		
+		sb.append("\n");
+		for (int i = 0; i < indentLevel; i++) {
+			sb.append("\t");
+		}
+		sb.append("}");
+	}
+
+}
+