diff --git a/library/GSM_Types.ttcn b/library/GSM_Types.ttcn
index 0289b08..2000b4a 100644
--- a/library/GSM_Types.ttcn
+++ b/library/GSM_Types.ttcn
@@ -119,6 +119,28 @@
 		tn := tn
 	}
 
+	template (value) RslChannelNr ts_RslChanNr0(uint3_t tn, RslChanNr0 cht) := {
+		u := { ch0 := cht },
+		tn := tn
+	}
+	template (value) RslChannelNr ts_RslChanNr_RACH(uint3_t tn) := ts_RslChanNr0(tn, RSL_CHAN_NR_RACH);
+	template (value) RslChannelNr ts_RslChanNr_BCCH(uint3_t tn) := ts_RslChanNr0(tn, RSL_CHAN_NR_BCCH);
+	template (value) RslChannelNr ts_RslChanNr_PCH_AGCH(uint3_t tn) := ts_RslChanNr0(tn, RSL_CHAN_NR_PCH_AGCH);
+	template (value) RslChannelNr ts_RslChanNr_Bm(uint3_t tn) := ts_RslChanNr0(tn, RSL_CHAN_NR_Bm_ACCH);
+	template (value) RslChannelNr ts_RslChanNr_PDCH(uint3_t tn) := ts_RslChanNr0(tn, RSL_CHAN_NR_OSMO_PDCH);
+	template (value) RslChannelNr ts_RslChanNr_Lm(uint3_t tn, uint1_t sub_slot) := {
+		u := { lm := { tag := '0001'B, sub_chan := sub_slot } },
+		tn := tn
+	}
+	template (value) RslChannelNr ts_RslChanNr_SDCCH4(uint3_t tn, uint2_t sub_slot) := {
+		u := { sdcch4 := { tag := '001'B, sub_chan := sub_slot } },
+		tn := tn
+	}
+	template (value) RslChannelNr ts_RslChanNr_SDCCH8(uint3_t tn, uint3_t sub_slot) := {
+		u := { sdcch8 := { tag := '01'B, sub_chan := sub_slot } },
+		tn := tn
+	}
+
 	/* TS 48.058 9.3.2 Link ID */
 	type enumerated RslLinkIdC {
 		FACCH_SDCCH	(0),