diff --git a/src/gprs_rlc.c b/src/gprs_rlc.c
new file mode 100644
index 0000000..31e7128
--- /dev/null
+++ b/src/gprs_rlc.c
@@ -0,0 +1,40 @@
+#include <osmocom/core/utils.h>
+
+#include "gprs_rlc.h"
+
+struct value_string gprs_rlc_ul_state_vals[] = {
+	{ US_NULL,		"US_NULL" },
+	{ US_AWAIT_ASS,		"US_AWAIT_ASS" },
+	{ US_ACK_XFER,		"US_AWAIT_XFER" },
+	{ US_GTTP_XFER,		"US_GTTP_XFER" },
+	{ US_UNACK_XFER,	"US_UNACK_XFER" },
+	{ US_TEST_MODE,		"US_TEST_MODE" },
+	{ US_AWAIT_RECOVERY,	"US_AWAIT_RECOVERY" },
+	{ 0, NULL }
+};
+
+struct value_string gprs_rlc_ul_substate_vals[] = {
+	{ RALS_NULL,		"RALS_NULL" },
+	{ RALS_AWAIT_TX_COMPLETE, "RALS_AWAIT_TX_COMPLETE" },
+	{ RALS_CURRENT_PDU_TX_COMPLETED, "RALS_CURRENT_PDU_TX_COMPLETED" },
+	{ RALS_COMPLETE,	"RALS_COMPLETE" },
+	{ 0, NULL }
+};
+
+struct value_string gprs_rlc_dl_state_vals[] = {
+	{ DS_NULL,		"DS_NULL" },
+	{ DS_RX_ACK,		"DS_RX_ACK" },
+	{ DS_RX_UNACK,		"DS_RX_UNACK" },
+	{ DS_RX_ACK_PENDING_RELEASE, "DS_RX_ACK_PENDING_RELEASE" },
+	{ DS_RX_UNACK_PENDING_RELEASE, "DS_RX_UNACK_PENDING_RELEASE" },
+	{ DS_TEST_MODE,		"DS_TEST_MODE" },
+	{ 0, NULL }
+};
+
+struct value_string gprs_rlc_hdr_type_vals[] = {
+	{ GPRS_HEADER_TYPE,	"GPRS" },
+	{ EGPRS_HEADER_TYPE_1,	"EGPRS T1" },
+	{ EGPRS_HEADER_TYPE_2,	"EGPRS T2" },
+	{ EGPRS_HEADER_TYPE_3,	"EGPRS T3" },
+	{ 0, NULL }
+};