--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cmu200/band.h	Sun May 21 06:37:56 2017 +0000
@@ -0,0 +1,18 @@
+/*
+ * In this header file we are going to define structures which contain
+ * our knowledge about GSM frequency bands we work with.
+ */
+
+struct arfcn_range {
+	unsigned	min;
+	unsigned	max;
+	unsigned	ul_khz;
+	unsigned	dl_khz;
+};
+
+struct band {
+	char			*name;
+	int			secaddr;
+	struct arfcn_range	*arfcn_range;
+	struct arfcn_range	*arfcn_range_ext;
+};