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authorJacob Erlbeck <jerlbeck@sysmocom.de>2015-06-12 14:06:09 +0200
committerJacob Erlbeck <jerlbeck@sysmocom.de>2015-06-22 10:39:06 +0200
commit409efa1ec84c14aaa43bfac85ba4956e9f3cf16a (patch)
tree7b1a6181bb1c157a23006a56547bd6a4ddbc6ebb
parent411686402b6a7f148fd05c926d5fbce7a1802810 (diff)
tbf: Fix downlink packet loss
When the MS is pinged with a longer interval, many packets get lost even if the GprsMs object is kept. If the interval is above the time where the DL TBF is in state FLOW (mainly influenced be the dl-tbf-idle-time command), an new TBF must be requested via AGCH for each ICMP PING message. Currently the LLC frame containing the PING is immediately stored in the TBF and gets lost, if TBF establishment fails for some reason. This commit moves all calls to put_frame() to schedule_next_frame(), where the data is moved from the LLC queue to the frame storage within the TBF object. This method is only called from within create_new_bsn() when the TBF is in the FLOW state and the frame is going to be encoded immediately. At all other places, where put_frame() has been called before, the LLC message is just appended to the LLC queue in the GprsMs object. This change effectively simplifies the related code parts, since date/len information and discard notifications is no longer needed there. Ticket: #1759 Sponsored-by: On-Waves ehf
-rw-r--r--src/tbf.h3
-rw-r--r--src/tbf_dl.cpp133
-rw-r--r--tests/tbf/TbfTest.cpp4
-rw-r--r--tests/tbf/TbfTest.err55
4 files changed, 122 insertions, 73 deletions
diff --git a/src/tbf.h b/src/tbf.h
index c74fcc3..5c6611d 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -362,9 +362,10 @@ protected:
int update_window(const uint8_t ssn, const uint8_t *rbb);
int maybe_start_new_window();
bool dl_window_stalled() const;
- void reuse_tbf(const uint8_t *data, const uint16_t len);
+ void reuse_tbf();
void start_llc_timer();
int analyse_errors(char *show_rbb, uint8_t ssn);
+ void schedule_next_frame();
struct osmo_timer_list m_llc_timer;
};
diff --git a/src/tbf_dl.cpp b/src/tbf_dl.cpp
index c114869..68e6fab 100644
--- a/src/tbf_dl.cpp
+++ b/src/tbf_dl.cpp
@@ -99,36 +99,29 @@ int gprs_rlcmac_dl_tbf::append_data(const uint8_t ms_class,
const uint8_t *data, const uint16_t len)
{
LOGP(DRLCMAC, LOGL_INFO, "%s append\n", tbf_name(this));
+ /* TODO: put this path into an llc_enqueue method */
+ /* the TBF exists, so we must write it in the queue
+ * we prepend lifetime in front of PDU */
+ struct timeval *tv;
+ struct msgb *llc_msg = msgb_alloc(len + sizeof(*tv) * 2,
+ "llc_pdu_queue");
+ if (!llc_msg)
+ return -ENOMEM;
+ tv = (struct timeval *)msgb_put(llc_msg, sizeof(*tv));
+ gprs_llc_queue::calc_pdu_lifetime(bts, pdu_delay_csec, tv);
+ tv = (struct timeval *)msgb_put(llc_msg, sizeof(*tv));
+ gettimeofday(tv, NULL);
+ memcpy(msgb_put(llc_msg, len), data, len);
+ llc_queue()->enqueue(llc_msg);
+ tbf_update_ms_class(this, ms_class);
+ start_llc_timer();
+
if (state_is(GPRS_RLCMAC_WAIT_RELEASE)) {
LOGP(DRLCMAC, LOGL_DEBUG,
"%s in WAIT RELEASE state "
"(T3193), so reuse TBF\n", tbf_name(this));
tbf_update_ms_class(this, ms_class);
- reuse_tbf(data, len);
- } else if (!have_data()) {
- m_llc.put_frame(data, len);
- bts->llc_frame_sched();
- /* it is no longer drained */
- m_last_dl_drained_fn = -1;
- tbf_update_ms_class(this, ms_class);
- start_llc_timer();
- } else {
- /* TODO: put this path into an llc_enqueue method */
- /* the TBF exists, so we must write it in the queue
- * we prepend lifetime in front of PDU */
- struct timeval *tv;
- struct msgb *llc_msg = msgb_alloc(len + sizeof(*tv) * 2,
- "llc_pdu_queue");
- if (!llc_msg)
- return -ENOMEM;
- tv = (struct timeval *)msgb_put(llc_msg, sizeof(*tv));
- gprs_llc_queue::calc_pdu_lifetime(bts, pdu_delay_csec, tv);
- tv = (struct timeval *)msgb_put(llc_msg, sizeof(*tv));
- gettimeofday(tv, NULL);
- memcpy(msgb_put(llc_msg, len), data, len);
- llc_queue()->enqueue(llc_msg);
- tbf_update_ms_class(this, ms_class);
- start_llc_timer();
+ reuse_tbf();
}
return 0;
@@ -149,7 +142,7 @@ static int tbf_new_dl_assignment(struct gprs_rlcmac_bts *bts,
const char *imsi,
const uint32_t tlli, const uint32_t tlli_old,
const uint8_t ms_class,
- const uint8_t *data, const uint16_t len)
+ struct gprs_rlcmac_dl_tbf **tbf)
{
uint8_t trx, ss;
int8_t use_trx;
@@ -188,9 +181,6 @@ static int tbf_new_dl_assignment(struct gprs_rlcmac_bts *bts,
if (!dl_tbf) {
LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n");
- bssgp_tx_llc_discarded(gprs_bssgp_pcu_current_bctx(), tlli,
- 1, len);
- bts->bts->llc_dropped_frame();
return -EBUSY;
}
dl_tbf->update_ms(tlli, GPRS_RLCMAC_DL_TBF);
@@ -198,10 +188,6 @@ static int tbf_new_dl_assignment(struct gprs_rlcmac_bts *bts,
LOGP(DRLCMAC, LOGL_DEBUG, "%s [DOWNLINK] START\n", tbf_name(dl_tbf));
- /* new TBF, so put first frame */
- dl_tbf->m_llc.put_frame(data, len);
- dl_tbf->bts->llc_frame_sched();
-
/* Store IMSI for later look-up and PCH retransmission */
dl_tbf->assign_imsi(imsi);
@@ -210,6 +196,7 @@ static int tbf_new_dl_assignment(struct gprs_rlcmac_bts *bts,
* to trigger downlink assignment. if there is no uplink,
* AGCH is used. */
dl_tbf->bts->trigger_dl_ass(dl_tbf, old_ul_tbf);
+ *tbf = dl_tbf;
return 0;
}
@@ -222,20 +209,30 @@ int gprs_rlcmac_dl_tbf::handle(struct gprs_rlcmac_bts *bts,
const uint8_t *data, const uint16_t len)
{
struct gprs_rlcmac_dl_tbf *dl_tbf;
+ int rc;
+ GprsMs *ms;
/* check for existing TBF */
dl_tbf = tbf_lookup_dl(bts->bts, tlli, tlli_old, imsi);
- if (dl_tbf) {
- int rc = dl_tbf->append_data(ms_class, delay_csec, data, len);
- if (rc >= 0)
- dl_tbf->assign_imsi(imsi);
+ if (!dl_tbf) {
+ rc = tbf_new_dl_assignment(bts, imsi, tlli, tlli_old, ms_class,
+ &dl_tbf);
+ if (rc < 0)
+ return rc;
+ }
- if (dl_tbf->ms())
- dl_tbf->ms()->confirm_tlli(tlli);
- return rc;
- }
+ OSMO_ASSERT(dl_tbf->ms() != NULL);
+ ms = dl_tbf->ms();
+ GprsMs::Guard guard(ms);
- return tbf_new_dl_assignment(bts, imsi, tlli, tlli_old, ms_class, data, len);
+ rc = dl_tbf->append_data(ms_class, delay_csec, data, len);
+
+ dl_tbf = ms->dl_tbf();
+
+ dl_tbf->assign_imsi(imsi);
+ ms->confirm_tlli(tlli);
+
+ return rc;
}
struct msgb *gprs_rlcmac_dl_tbf::llc_dequeue(bssgp_bvc_ctx *bctx)
@@ -385,17 +382,41 @@ do_resend:
goto do_resend;
}
+void gprs_rlcmac_dl_tbf::schedule_next_frame()
+{
+ struct msgb *msg;
+
+ if (m_llc.frame_length() != 0)
+ return;
+
+ /* dequeue next LLC frame, if any */
+ msg = llc_dequeue(gprs_bssgp_pcu_current_bctx());
+ if (!msg)
+ return;
+
+ LOGP(DRLCMACDL, LOGL_INFO,
+ "- Dequeue next LLC for %s (len=%d)\n",
+ tbf_name(this), msg->len);
+
+ m_llc.put_frame(msg->data, msg->len);
+ bts->llc_frame_sched();
+ msgb_free(msg);
+ m_last_dl_drained_fn = -1;
+}
+
struct msgb *gprs_rlcmac_dl_tbf::create_new_bsn(const uint32_t fn, const uint8_t ts)
{
struct rlc_dl_header *rh;
struct rlc_li_field *li;
- struct msgb *msg;
uint8_t *delimiter, *data, *e_pointer;
uint16_t space, chunk;
gprs_rlc_data *rlc_data;
const uint16_t bsn = m_window.v_s();
uint8_t cs = 1;
+ if (m_llc.frame_length() == 0)
+ schedule_next_frame();
+
cs = current_cs();
LOGP(DRLCMACDL, LOGL_DEBUG, "- Sending new block at BSN %d, CS=%d\n",
@@ -535,15 +556,7 @@ struct msgb *gprs_rlcmac_dl_tbf::create_new_bsn(const uint32_t fn, const uint8_t
gprs_rlcmac_dl_bw(this, m_llc.frame_length());
m_llc.reset();
/* dequeue next LLC frame, if any */
- msg = llc_dequeue(gprs_bssgp_pcu_current_bctx());
- if (msg) {
- LOGP(DRLCMACDL, LOGL_INFO, "- Dequeue next LLC for "
- "%s (len=%d)\n", tbf_name(this), msg->len);
- m_llc.put_frame(msg->data, msg->len);
- bts->llc_frame_sched();
- msgb_free(msg);
- m_last_dl_drained_fn = -1;
- }
+ schedule_next_frame();
/* if we have more data and we have space left */
if (space > 0 && (m_llc.frame_length() || keep_open(fn))) {
li->m = 1; /* we indicate more frames to follow */
@@ -796,7 +809,6 @@ int gprs_rlcmac_dl_tbf::update_window(const uint8_t ssn, const uint8_t *rbb)
int gprs_rlcmac_dl_tbf::maybe_start_new_window()
{
- struct msgb *msg;
uint16_t received;
LOGP(DRLCMACDL, LOGL_DEBUG, "- Final ACK received.\n");
@@ -809,8 +821,7 @@ int gprs_rlcmac_dl_tbf::maybe_start_new_window()
set_state(GPRS_RLCMAC_WAIT_RELEASE);
/* check for LLC PDU in the LLC Queue */
- msg = llc_dequeue(gprs_bssgp_pcu_current_bctx());
- if (!msg) {
+ if (!have_data()) {
/* no message, start T3193, change state to RELEASE */
LOGP(DRLCMACDL, LOGL_DEBUG, "- No new message, so we release.\n");
/* start T3193 */
@@ -822,8 +833,7 @@ int gprs_rlcmac_dl_tbf::maybe_start_new_window()
}
/* we have more data so we will re-use this tbf */
- reuse_tbf(msg->data, msg->len);
- msgb_free(msg);
+ reuse_tbf();
return 0;
}
@@ -836,7 +846,7 @@ int gprs_rlcmac_dl_tbf::rcvd_dl_ack(uint8_t final_ack, uint8_t ssn, uint8_t *rbb
return maybe_start_new_window();
}
-void gprs_rlcmac_dl_tbf::reuse_tbf(const uint8_t *data, const uint16_t len)
+void gprs_rlcmac_dl_tbf::reuse_tbf()
{
uint8_t trx;
struct gprs_rlcmac_dl_tbf *new_tbf = NULL;
@@ -851,18 +861,11 @@ void gprs_rlcmac_dl_tbf::reuse_tbf(const uint8_t *data, const uint16_t len)
if (!new_tbf) {
LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n");
- bssgp_tx_llc_discarded(gprs_bssgp_pcu_current_bctx(), tlli(),
- 1, len);
- bts->llc_dropped_frame();
return;
}
new_tbf->set_ms(ms());
- /* Start with the passed frame */
- new_tbf->m_llc.put_frame(data, len);
- bts->llc_frame_sched();
-
/* reset rlc states */
m_tx_counter = 0;
m_wait_confirm = 0;
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp
index 5bc492e..5dfd2b8 100644
--- a/tests/tbf/TbfTest.cpp
+++ b/tests/tbf/TbfTest.cpp
@@ -486,10 +486,10 @@ static void test_tbf_dl_llc_loss()
msg = ms->dl_tbf()->create_dl_acked_block(fn += 4, 7);
fprintf(stderr, "MSG = %s\n", msgb_hexdump(msg));
OSMO_ASSERT(msgb_length(msg) == 23);
- /* OSMO_ASSERT(msgb_data(msg)[10] == expected_data); */
+ OSMO_ASSERT(msgb_data(msg)[10] == expected_data);
expected_data += 1;
}
- /* OSMO_ASSERT(expected_data-1 == 3); */
+ OSMO_ASSERT(expected_data-1 == 3);
printf("=== end %s ===\n", __func__);
diff --git a/tests/tbf/TbfTest.err b/tests/tbf/TbfTest.err
index fe1b6ad..3e73ce3 100644
--- a/tests/tbf/TbfTest.err
+++ b/tests/tbf/TbfTest.err
@@ -46,6 +46,7 @@ Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLO
Sending data request: trx=0 ts=4 sapi=5 arfcn=0 fn=0 block=0 data=4f 08 20 00 44 02 00 02 08 04 00 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Scheduling data message at RTS for DL TFI=0 (TRX=0, TS=4) prio=3
TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) downlink (V(A)==0 .. V(S)==0)
+- Dequeue next LLC for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) (len=200)
- Sending new block at BSN 0, CS=1
-- Chunk with length 200 larger than space (20) left in block: copy only remaining space, and we are done
data block: 07 00 01 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13
@@ -117,6 +118,7 @@ Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLO
Sending data request: trx=0 ts=4 sapi=5 arfcn=0 fn=0 block=0 data=4f 08 20 00 44 02 00 02 08 04 00 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Scheduling data message at RTS for DL TFI=0 (TRX=0, TS=4) prio=3
TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) downlink (V(A)==0 .. V(S)==0)
+- Dequeue next LLC for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) (len=200)
- Sending new block at BSN 0, CS=1
-- Chunk with length 200 larger than space (20) left in block: copy only remaining space, and we are done
data block: 07 00 01 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13
@@ -188,6 +190,7 @@ Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLO
Sending data request: trx=0 ts=4 sapi=5 arfcn=0 fn=0 block=0 data=4f 08 20 00 44 02 00 02 08 04 00 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Scheduling data message at RTS for DL TFI=0 (TRX=0, TS=4) prio=3
TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) downlink (V(A)==0 .. V(S)==0)
+- Dequeue next LLC for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) (len=200)
- Sending new block at BSN 0, CS=1
-- Chunk with length 200 larger than space (20) left in block: copy only remaining space, and we are done
data block: 07 00 01 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13
@@ -453,6 +456,7 @@ Send dowlink assignment for TBF(TFI=0 TLLI=0xc0000000 DIR=DL STATE=NULL) on PCH,
TBF(TFI=0 TLLI=0xc0000000 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=0 TLLI=0xc0000000 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 30 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 08 00 23 2b 2b 2b 2b
+TBF(TFI=0 TLLI=0xc0000000 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=1.
********** TBF starts here **********
@@ -474,6 +478,7 @@ Send dowlink assignment for TBF(TFI=1 TLLI=0xc0000001 DIR=DL STATE=NULL) on PCH,
TBF(TFI=1 TLLI=0xc0000001 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=1 TLLI=0xc0000001 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 31 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 18 40 23 2b 2b 2b 2b
+TBF(TFI=1 TLLI=0xc0000001 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=2.
********** TBF starts here **********
@@ -495,6 +500,7 @@ Send dowlink assignment for TBF(TFI=2 TLLI=0xc0000002 DIR=DL STATE=NULL) on PCH,
TBF(TFI=2 TLLI=0xc0000002 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=2 TLLI=0xc0000002 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 32 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 28 80 23 2b 2b 2b 2b
+TBF(TFI=2 TLLI=0xc0000002 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=3.
********** TBF starts here **********
@@ -516,6 +522,7 @@ Send dowlink assignment for TBF(TFI=3 TLLI=0xc0000003 DIR=DL STATE=NULL) on PCH,
TBF(TFI=3 TLLI=0xc0000003 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=3 TLLI=0xc0000003 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 33 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 38 c0 23 2b 2b 2b 2b
+TBF(TFI=3 TLLI=0xc0000003 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=4.
********** TBF starts here **********
@@ -537,6 +544,7 @@ Send dowlink assignment for TBF(TFI=4 TLLI=0xc0000004 DIR=DL STATE=NULL) on PCH,
TBF(TFI=4 TLLI=0xc0000004 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=4 TLLI=0xc0000004 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 34 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 49 00 23 2b 2b 2b 2b
+TBF(TFI=4 TLLI=0xc0000004 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=5.
********** TBF starts here **********
@@ -558,6 +566,7 @@ Send dowlink assignment for TBF(TFI=5 TLLI=0xc0000005 DIR=DL STATE=NULL) on PCH,
TBF(TFI=5 TLLI=0xc0000005 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=5 TLLI=0xc0000005 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 35 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 59 40 23 2b 2b 2b 2b
+TBF(TFI=5 TLLI=0xc0000005 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=6.
********** TBF starts here **********
@@ -579,6 +588,7 @@ Send dowlink assignment for TBF(TFI=6 TLLI=0xc0000006 DIR=DL STATE=NULL) on PCH,
TBF(TFI=6 TLLI=0xc0000006 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=6 TLLI=0xc0000006 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 36 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 69 80 23 2b 2b 2b 2b
+TBF(TFI=6 TLLI=0xc0000006 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=7.
********** TBF starts here **********
@@ -600,6 +610,7 @@ Send dowlink assignment for TBF(TFI=7 TLLI=0xc0000007 DIR=DL STATE=NULL) on PCH,
TBF(TFI=7 TLLI=0xc0000007 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=7 TLLI=0xc0000007 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 37 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 79 c0 23 2b 2b 2b 2b
+TBF(TFI=7 TLLI=0xc0000007 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=8.
********** TBF starts here **********
@@ -621,6 +632,7 @@ Send dowlink assignment for TBF(TFI=8 TLLI=0xc0000008 DIR=DL STATE=NULL) on PCH,
TBF(TFI=8 TLLI=0xc0000008 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=8 TLLI=0xc0000008 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 38 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 8a 00 23 2b 2b 2b 2b
+TBF(TFI=8 TLLI=0xc0000008 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=9.
********** TBF starts here **********
@@ -642,6 +654,7 @@ Send dowlink assignment for TBF(TFI=9 TLLI=0xc0000009 DIR=DL STATE=NULL) on PCH,
TBF(TFI=9 TLLI=0xc0000009 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=9 TLLI=0xc0000009 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 30 39 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 9a 40 23 2b 2b 2b 2b
+TBF(TFI=9 TLLI=0xc0000009 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=10.
********** TBF starts here **********
@@ -663,6 +676,7 @@ Send dowlink assignment for TBF(TFI=10 TLLI=0xc000000a DIR=DL STATE=NULL) on PCH
TBF(TFI=10 TLLI=0xc000000a DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=10 TLLI=0xc000000a DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 30 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 aa 80 23 2b 2b 2b 2b
+TBF(TFI=10 TLLI=0xc000000a DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=11.
********** TBF starts here **********
@@ -684,6 +698,7 @@ Send dowlink assignment for TBF(TFI=11 TLLI=0xc000000b DIR=DL STATE=NULL) on PCH
TBF(TFI=11 TLLI=0xc000000b DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=11 TLLI=0xc000000b DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 31 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 ba c0 23 2b 2b 2b 2b
+TBF(TFI=11 TLLI=0xc000000b DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=12.
********** TBF starts here **********
@@ -705,6 +720,7 @@ Send dowlink assignment for TBF(TFI=12 TLLI=0xc000000c DIR=DL STATE=NULL) on PCH
TBF(TFI=12 TLLI=0xc000000c DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=12 TLLI=0xc000000c DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 32 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 cb 00 23 2b 2b 2b 2b
+TBF(TFI=12 TLLI=0xc000000c DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=13.
********** TBF starts here **********
@@ -726,6 +742,7 @@ Send dowlink assignment for TBF(TFI=13 TLLI=0xc000000d DIR=DL STATE=NULL) on PCH
TBF(TFI=13 TLLI=0xc000000d DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=13 TLLI=0xc000000d DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 33 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 db 40 23 2b 2b 2b 2b
+TBF(TFI=13 TLLI=0xc000000d DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=14.
********** TBF starts here **********
@@ -747,6 +764,7 @@ Send dowlink assignment for TBF(TFI=14 TLLI=0xc000000e DIR=DL STATE=NULL) on PCH
TBF(TFI=14 TLLI=0xc000000e DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=14 TLLI=0xc000000e DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 34 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 eb 80 23 2b 2b 2b 2b
+TBF(TFI=14 TLLI=0xc000000e DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=15.
********** TBF starts here **********
@@ -768,6 +786,7 @@ Send dowlink assignment for TBF(TFI=15 TLLI=0xc000000f DIR=DL STATE=NULL) on PCH
TBF(TFI=15 TLLI=0xc000000f DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=15 TLLI=0xc000000f DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 35 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 00 fb c0 23 2b 2b 2b 2b
+TBF(TFI=15 TLLI=0xc000000f DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=16.
********** TBF starts here **********
@@ -789,6 +808,7 @@ Send dowlink assignment for TBF(TFI=16 TLLI=0xc0000010 DIR=DL STATE=NULL) on PCH
TBF(TFI=16 TLLI=0xc0000010 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=16 TLLI=0xc0000010 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 36 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 0c 00 23 2b 2b 2b 2b
+TBF(TFI=16 TLLI=0xc0000010 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=17.
********** TBF starts here **********
@@ -810,6 +830,7 @@ Send dowlink assignment for TBF(TFI=17 TLLI=0xc0000011 DIR=DL STATE=NULL) on PCH
TBF(TFI=17 TLLI=0xc0000011 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=17 TLLI=0xc0000011 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 37 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 1c 40 23 2b 2b 2b 2b
+TBF(TFI=17 TLLI=0xc0000011 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=18.
********** TBF starts here **********
@@ -831,6 +852,7 @@ Send dowlink assignment for TBF(TFI=18 TLLI=0xc0000012 DIR=DL STATE=NULL) on PCH
TBF(TFI=18 TLLI=0xc0000012 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=18 TLLI=0xc0000012 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 38 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 2c 80 23 2b 2b 2b 2b
+TBF(TFI=18 TLLI=0xc0000012 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=19.
********** TBF starts here **********
@@ -852,6 +874,7 @@ Send dowlink assignment for TBF(TFI=19 TLLI=0xc0000013 DIR=DL STATE=NULL) on PCH
TBF(TFI=19 TLLI=0xc0000013 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=19 TLLI=0xc0000013 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 31 39 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 3c c0 23 2b 2b 2b 2b
+TBF(TFI=19 TLLI=0xc0000013 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=20.
********** TBF starts here **********
@@ -873,6 +896,7 @@ Send dowlink assignment for TBF(TFI=20 TLLI=0xc0000014 DIR=DL STATE=NULL) on PCH
TBF(TFI=20 TLLI=0xc0000014 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=20 TLLI=0xc0000014 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 30 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 4d 00 23 2b 2b 2b 2b
+TBF(TFI=20 TLLI=0xc0000014 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=21.
********** TBF starts here **********
@@ -894,6 +918,7 @@ Send dowlink assignment for TBF(TFI=21 TLLI=0xc0000015 DIR=DL STATE=NULL) on PCH
TBF(TFI=21 TLLI=0xc0000015 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=21 TLLI=0xc0000015 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 31 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 5d 40 23 2b 2b 2b 2b
+TBF(TFI=21 TLLI=0xc0000015 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=22.
********** TBF starts here **********
@@ -915,6 +940,7 @@ Send dowlink assignment for TBF(TFI=22 TLLI=0xc0000016 DIR=DL STATE=NULL) on PCH
TBF(TFI=22 TLLI=0xc0000016 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=22 TLLI=0xc0000016 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 32 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 6d 80 23 2b 2b 2b 2b
+TBF(TFI=22 TLLI=0xc0000016 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=23.
********** TBF starts here **********
@@ -936,6 +962,7 @@ Send dowlink assignment for TBF(TFI=23 TLLI=0xc0000017 DIR=DL STATE=NULL) on PCH
TBF(TFI=23 TLLI=0xc0000017 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=23 TLLI=0xc0000017 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 33 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 7d c0 23 2b 2b 2b 2b
+TBF(TFI=23 TLLI=0xc0000017 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=24.
********** TBF starts here **********
@@ -957,6 +984,7 @@ Send dowlink assignment for TBF(TFI=24 TLLI=0xc0000018 DIR=DL STATE=NULL) on PCH
TBF(TFI=24 TLLI=0xc0000018 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=24 TLLI=0xc0000018 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 34 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 8e 00 23 2b 2b 2b 2b
+TBF(TFI=24 TLLI=0xc0000018 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=25.
********** TBF starts here **********
@@ -978,6 +1006,7 @@ Send dowlink assignment for TBF(TFI=25 TLLI=0xc0000019 DIR=DL STATE=NULL) on PCH
TBF(TFI=25 TLLI=0xc0000019 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=25 TLLI=0xc0000019 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 35 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 9e 40 23 2b 2b 2b 2b
+TBF(TFI=25 TLLI=0xc0000019 DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=26.
********** TBF starts here **********
@@ -999,6 +1028,7 @@ Send dowlink assignment for TBF(TFI=26 TLLI=0xc000001a DIR=DL STATE=NULL) on PCH
TBF(TFI=26 TLLI=0xc000001a DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=26 TLLI=0xc000001a DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 36 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 ae 80 23 2b 2b 2b 2b
+TBF(TFI=26 TLLI=0xc000001a DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=27.
********** TBF starts here **********
@@ -1020,6 +1050,7 @@ Send dowlink assignment for TBF(TFI=27 TLLI=0xc000001b DIR=DL STATE=NULL) on PCH
TBF(TFI=27 TLLI=0xc000001b DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=27 TLLI=0xc000001b DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 37 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 be c0 23 2b 2b 2b 2b
+TBF(TFI=27 TLLI=0xc000001b DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=28.
********** TBF starts here **********
@@ -1041,6 +1072,7 @@ Send dowlink assignment for TBF(TFI=28 TLLI=0xc000001c DIR=DL STATE=NULL) on PCH
TBF(TFI=28 TLLI=0xc000001c DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=28 TLLI=0xc000001c DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 38 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 cf 00 23 2b 2b 2b 2b
+TBF(TFI=28 TLLI=0xc000001c DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=29.
********** TBF starts here **********
@@ -1062,6 +1094,7 @@ Send dowlink assignment for TBF(TFI=29 TLLI=0xc000001d DIR=DL STATE=NULL) on PCH
TBF(TFI=29 TLLI=0xc000001d DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=29 TLLI=0xc000001d DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 32 39 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 df 40 23 2b 2b 2b 2b
+TBF(TFI=29 TLLI=0xc000001d DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=30.
********** TBF starts here **********
@@ -1083,6 +1116,7 @@ Send dowlink assignment for TBF(TFI=30 TLLI=0xc000001e DIR=DL STATE=NULL) on PCH
TBF(TFI=30 TLLI=0xc000001e DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=30 TLLI=0xc000001e DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 33 30 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 ef 80 23 2b 2b 2b 2b
+TBF(TFI=30 TLLI=0xc000001e DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=31.
********** TBF starts here **********
@@ -1104,10 +1138,10 @@ Send dowlink assignment for TBF(TFI=31 TLLI=0xc000001f DIR=DL STATE=NULL) on PCH
TBF(TFI=31 TLLI=0xc000001f DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=31 TLLI=0xc000001f DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=30 33 31 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 00 00 01 ff c0 23 2b 2b 2b 2b
+TBF(TFI=31 TLLI=0xc000001f DIR=DL STATE=ASSIGN) append
Searching for first unallocated TFI: TRX=0 first TS=4
No TFI available.
No PDCH resource
-BSSGP (BVCI=1234) Tx LLC-DISCARDED TLLI=0xc0000020, FRAMES=1, OCTETS=256
Searching for first unallocated TFI: TRX=0 first TS=4
Found TFI=0.
********** TBF starts here **********
@@ -1130,6 +1164,7 @@ TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=34 35 36 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 01 23 45 68 00 23 2b 2b 2b 2b
TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) append
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) append
TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) free
Detaching TBF from MS object, TLLI = 0xc0123456, TBF = TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN)
********** TBF ends here **********
@@ -1150,24 +1185,34 @@ Send dowlink assignment for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) on PCH,
TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
TX: START TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=34 35 36 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 01 23 45 68 00 23 2b 2b 2b 2b
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) append
TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) downlink (V(A)==0 .. V(S)==0)
+- Dequeue next LLC for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) (len=19)
- Sending new block at BSN 0, CS=1
-- Chunk with length 19 is less than remaining space (20): add length header to to delimit LLC frame
Complete DL frame for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN)len=19
- Dequeue next LLC for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) (len=19)
-- No space left, so we are done.
-data block: 07 00 00 4d 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03
-MSG = 07 00 00 4d 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03
+data block: 07 00 00 4d 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
+MSG = 07 00 00 4d 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) downlink (V(A)==0 .. V(S)==1)
- Sending new block at BSN 1, CS=1
-- Chunk with length 19 is less than remaining space (20): add length header to to delimit LLC frame
Complete DL frame for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN)len=19
+- Dequeue next LLC for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) (len=19)
+-- No space left, so we are done.
+data block: 07 00 02 4d 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
+MSG = 07 00 02 4d 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) downlink (V(A)==0 .. V(S)==2)
+- Sending new block at BSN 2, CS=1
+-- Chunk with length 19 is less than remaining space (20): add length header to to delimit LLC frame
+Complete DL frame for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN)len=19
-- Final block, so we done.
TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) changes state from ASSIGN to FINISHED
-data block: 07 01 02 4d 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
+data block: 07 01 04 4d 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03
- Scheduling Ack/Nack polling, because is was requested explicitly (e.g. first final block sent).
Polling cannot be sheduled in this TS 7, waiting for TS 4
-MSG = 07 01 02 4d 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
+MSG = 07 01 04 4d 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03
Searching for first unallocated TFI: TRX=0 first TS=7
Found TFI=0.
MS requests UL TBF on RACH, so we provide one: