diff --git a/src/llc.h b/src/llc.h
new file mode 100644
index 0000000..3144362
--- /dev/null
+++ b/src/llc.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 by Holger Hans Peter Freyther
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+#define LLC_MAX_LEN 1543
+
+/**
+ * I represent the LLC data to a MS
+ */
+struct gprs_llc {
+	void init();
+	void reset();
+	void reset_frame_space();
+
+	void enqueue(struct msgb *llc_msg);
+	struct msgb *dequeue();
+
+	void update_frame(struct msgb *msg);
+	void put_frame(const uint8_t *data, size_t len);
+	void clear(BTS *bts);
+
+	uint8_t frame[LLC_MAX_LEN]; /* current DL or UL frame */
+	uint16_t index; /* current write/read position of frame */
+	uint16_t length; /* len of current DL LLC_frame, 0 == no frame */
+	struct llist_head queue; /* queued LLC DL data */
+};
+