diff --git a/pcu/GPRS_Components.ttcn b/pcu/GPRS_Components.ttcn
index 2628938..392440c 100644
--- a/pcu/GPRS_Components.ttcn
+++ b/pcu/GPRS_Components.ttcn
@@ -308,7 +308,7 @@
 runs on MS_BTS_IFACE_CT {
 	var GsmRrMessage rr_imm_ass;
 
-	rr_imm_ass := f_establish_tbf(ms.ra, ms.ra_is_11bit, ms.burst_type, ms.ta);
+	rr_imm_ass := f_pcuif_tx_rach_rx_imm_ass(ms.ra, ms.ra_is_11bit, ms.burst_type, ms.ta);
 	ms.ul_tbf := f_ultbf_new_from_rr_imm_ass(rr_imm_ass);
 }
 
@@ -523,10 +523,10 @@
 const BIT8 chan_req_def := '01111000'B;
 
 /* Establish an Uplink TBF by sending RACH.ind towards the PCU */
-function f_establish_tbf(uint16_t ra := bit2int(chan_req_def),
-			 uint8_t is_11bit := 0,
-			 PCUIF_BurstType burst_type := BURST_TYPE_0,
-			 TimingAdvance ta := 0)
+function f_pcuif_tx_rach_rx_imm_ass(uint16_t ra := bit2int(chan_req_def),
+				    uint8_t is_11bit := 0,
+				    PCUIF_BurstType burst_type := BURST_TYPE_0,
+				    TimingAdvance ta := 0)
 runs on MS_BTS_IFACE_CT return GsmRrMessage {
 	var uint32_t fn;