diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index 57706c9..40701d6 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -738,6 +738,8 @@
 /* ensure the RSL CHAN ACT (during assignment) contains values we expect depending on test case */
 private function f_check_chan_act(AssignmentState st, RSL_Message chan_act) runs on MSC_ConnHdlr {
 	var RSL_IE_Body encr_info;
+	var RSL_IE_Body ms_power_param;
+
 	if (ispresent(g_pars.encr) and g_pars.encr.enc_alg != '01'O) {
 		if (not f_rsl_find_ie(chan_act, RSL_IE_ENCR_INFO, encr_info)) {
 			Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Missing Encryption IE in CHAN ACT");
@@ -756,6 +758,11 @@
 	}
 	/* FIXME: validate RSL_IE_ACT_TYPE, RSL_IE_CHAN_MODE, RSL_IE_CHAN_IDENT, RSL_IE_BS_POWER,
 	 * RSL_IE_MS_POWER, RSL_IE_TIMING_ADVANCE */
+
+	if (not f_rsl_find_ie(chan_act, RSL_IE_MS_POWER_PARAM, ms_power_param)) {
+		Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "IE MS Power Parameters not found in CHAN ACT");
+	}
+
 }
 
 altstep as_assignment(inout AssignmentState st) runs on MSC_ConnHdlr {