tbf_dl: fix FBI not set upon X2031 = 0

If Idle TBF timer (X2031) is set to 0, it means the TBF release is
immediately started once all queued data has been scheduled. In that
case, we must set FBI=1 (by setting cv=0) and move to FINISH state.

This used to work over the usual path where X2031 != 0, because release
start will alays happen at a later sched poll time where a dummy LLC
frame is sent and FBI set accordingly.

Change-Id: Ib20602936ae084c413f6bfe14eea33b602020be0

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/tbf/TbfTest.err b/tests/tbf/TbfTest.err
index 515b649e..0f802a7c 100644
--- a/tests/tbf/TbfTest.err
+++ b/tests/tbf/TbfTest.err
@@ -417,6 +417,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) downlink (V(A)==0 .. V(S)==20) mcs_
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Sending new block at BSN 20, CS=CS-1
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Complete DL frame, len=200
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) LLC queue completely drained and there's still 17 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) data block (BSN 20, CS-1): 09 c6 c7 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) need_padding 0 spb_status 0 spb 0 (BSN1 20 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Copying 1 RLC blocks, 1 BSNs
@@ -3432,6 +3433,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 11 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-1): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -3677,6 +3679,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==24
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 24, CS=MCS-1
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 15 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 24, MCS-1): 0c ff 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 24 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -3736,6 +3739,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 17 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-2): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -3931,6 +3935,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==19
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 19, CS=MCS-2
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 19 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 19, MCS-2): 10 ff 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 19 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -3990,6 +3995,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 26 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-3): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4135,6 +4141,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==14
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 14, CS=MCS-3
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 5 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 14, MCS-3): 3e ff 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 14 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4194,6 +4201,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 33 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-4): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4319,6 +4327,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==12
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 12, CS=MCS-4
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 15 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 12, MCS-4): 38 ff 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 12 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4378,6 +4387,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 45 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-5): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4483,6 +4493,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 10, CS=MCS-5
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 47 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 10, MCS-5): 10 ff 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 10 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4542,6 +4553,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 63 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-6): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4617,6 +4629,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==7)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 7, CS=MCS-6
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 5 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 7, MCS-6): 88 ff 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 7 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -4676,6 +4689,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 45 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-7): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Restarting at BSN 0, because all blocks have been transmitted (FLOW).
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
@@ -4757,6 +4771,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 10, CS=MCS-7
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 47 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 10, MCS-7): 10 ff 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Restarting at BSN 0, because all blocks have been transmitted (FLOW).
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 10 BSN2 -1)
@@ -4817,6 +4832,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 57 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-8): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Restarting at BSN 0, because all blocks have been transmitted (FLOW).
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
@@ -4886,6 +4902,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==8)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 8, CS=MCS-8
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 31 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 8, MCS-8): 48 ff 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Restarting at BSN 0, because all blocks have been transmitted (FLOW).
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 8 BSN2 -1)
@@ -4947,6 +4964,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 0, C
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Dequeue next LLC (len=10)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=10
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 63 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-9): 14 ff 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Restarting at BSN 0, because all blocks have been transmitted (FLOW).
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 -1)
@@ -5004,6 +5022,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 6, MCS-9): 01
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 7, CS=MCS-9 (forced)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=512
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 5 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 7, MCS-9): 88 ff 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 6 BSN2 7)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 2 RLC blocks, 2 BSNs
@@ -5231,6 +5250,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 1, CS=MCS-5
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=100
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 11 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 1, MCS-5): 58 ff 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 1 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -5301,6 +5321,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) downlink (V(A)==0 .. V(S)==1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 1, CS=MCS-6
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=100
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 47 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 1, MCS-6): 34 ff 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 1 BSN2 -1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 1 RLC blocks, 1 BSNs
@@ -5366,6 +5387,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-7): 00
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 1, CS=MCS-7 (forced)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=100
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 11 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 1, MCS-7): 58 ff 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 2 RLC blocks, 2 BSNs
@@ -5436,6 +5458,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 0, MCS-9): 00
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Sending new block at BSN 1, CS=MCS-9 (forced)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Complete DL frame, len=100
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) LLC queue completely drained and there's still 47 free bytes in rlcmac data block
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Keep idle TBF open: 0/43 -> yes
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) data block (BSN 1, MCS-9): 34 ff 4a 4b 4c 4d 4e 4f 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) need_padding 0 spb_status 0 spb 0 (BSN1 0 BSN2 1)
 TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW EGPRS) Copying 2 RLC blocks, 2 BSNs