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-rw-r--r--src/bts.cpp4
-rw-r--r--src/tbf.cpp15
-rw-r--r--src/tbf.h1
-rw-r--r--src/tbf_dl.cpp3
-rw-r--r--src/tbf_ul.cpp1
-rw-r--r--tests/tbf/TbfTest.cpp5
-rw-r--r--tests/tbf/TbfTest.err28
7 files changed, 32 insertions, 25 deletions
diff --git a/src/bts.cpp b/src/bts.cpp
index 61dfc87..0356718 100644
--- a/src/bts.cpp
+++ b/src/bts.cpp
@@ -307,7 +307,7 @@ gprs_rlcmac_dl_tbf *BTS::dl_tbf_by_poll_fn(uint32_t fn, uint8_t trx, uint8_t ts)
if (tbf->state_is_not(GPRS_RLCMAC_RELEASING)
&& tbf->poll_state == GPRS_RLCMAC_POLL_SCHED
&& tbf->poll_fn == fn && tbf->trx->trx_no == trx
- && tbf->control_ts == ts) {
+ && tbf->poll_ts == ts) {
return tbf;
}
}
@@ -325,7 +325,7 @@ gprs_rlcmac_ul_tbf *BTS::ul_tbf_by_poll_fn(uint32_t fn, uint8_t trx, uint8_t ts)
if (tbf->state_is_not(GPRS_RLCMAC_RELEASING)
&& tbf->poll_state == GPRS_RLCMAC_POLL_SCHED
&& tbf->poll_fn == fn && tbf->trx->trx_no == trx
- && tbf->control_ts == ts) {
+ && tbf->poll_ts == ts) {
return tbf;
}
}
diff --git a/src/tbf.cpp b/src/tbf.cpp
index 35a004c..6e51628 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -61,6 +61,7 @@ gprs_rlcmac_tbf::gprs_rlcmac_tbf(BTS *bts_, gprs_rlcmac_tbf_direction dir) :
ul_ack_state(GPRS_RLCMAC_UL_ACK_NONE),
poll_state(GPRS_RLCMAC_POLL_NONE),
poll_fn(0),
+ poll_ts(0),
n3105(0),
T(0),
num_T_exp(0),
@@ -436,8 +437,8 @@ void gprs_rlcmac_tbf::stop_timer()
void gprs_rlcmac_tbf::poll_timeout()
{
- LOGP(DRLCMAC, LOGL_NOTICE, "%s poll timeout for FN=%d (curr FN %d)\n",
- tbf_name(this), poll_fn, bts->current_frame_number());
+ LOGP(DRLCMAC, LOGL_NOTICE, "%s poll timeout for FN=%d, TS=%d (curr FN %d)\n",
+ tbf_name(this), poll_fn, poll_ts, bts->current_frame_number());
poll_state = GPRS_RLCMAC_POLL_NONE;
@@ -935,10 +936,11 @@ struct msgb *gprs_rlcmac_tbf::create_dl_ass(uint32_t fn, uint8_t ts)
if (poll_ass_dl) {
poll_state = GPRS_RLCMAC_POLL_SCHED;
poll_fn = (fn + 13) % 2715648;
+ poll_ts = ts;
dl_ass_state = GPRS_RLCMAC_DL_ASS_WAIT_ACK;
LOGP(DRLCMACDL, LOGL_INFO,
- "%s Scheduled DL Assignment polling on FN=%d\n",
- name(), poll_fn);
+ "%s Scheduled DL Assignment polling on FN=%d, TS=%d\n",
+ name(), poll_fn, poll_ts);
} else {
dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE;
new_dl_tbf->set_state(GPRS_RLCMAC_FLOW);
@@ -1004,10 +1006,11 @@ struct msgb *gprs_rlcmac_tbf::create_ul_ass(uint32_t fn, uint8_t ts)
poll_state = GPRS_RLCMAC_POLL_SCHED;
poll_fn = (fn + 13) % 2715648;
+ poll_ts = ts;
ul_ass_state = GPRS_RLCMAC_UL_ASS_WAIT_ACK;
LOGP(DRLCMACDL, LOGL_INFO,
- "%s Scheduled UL Assignment polling on FN=%d\n",
- name(), poll_fn);
+ "%s Scheduled UL Assignment polling on FN=%d, TS=%d\n",
+ name(), poll_fn, poll_ts);
return msg;
}
diff --git a/src/tbf.h b/src/tbf.h
index f3487c6..d23cf93 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -177,6 +177,7 @@ struct gprs_rlcmac_tbf {
enum gprs_rlcmac_tbf_poll_state poll_state;
uint32_t poll_fn; /* frame number to poll */
+ uint8_t poll_ts; /* TS to poll */
gprs_rlc m_rlc;
diff --git a/src/tbf_dl.cpp b/src/tbf_dl.cpp
index 21a042e..10b376f 100644
--- a/src/tbf_dl.cpp
+++ b/src/tbf_dl.cpp
@@ -594,6 +594,7 @@ struct msgb *gprs_rlcmac_dl_tbf::create_dl_acked_block(
/* schedule polling */
poll_state = GPRS_RLCMAC_POLL_SCHED;
poll_fn = (fn + 13) % 2715648;
+ poll_ts = ts;
/* Clear poll timeout flag */
state_flags &= ~(1 << GPRS_RLCMAC_FLAG_TO_DL_ACK);
@@ -609,7 +610,7 @@ struct msgb *gprs_rlcmac_dl_tbf::create_dl_acked_block(
LOGP(DRLCMACDL, LOGL_INFO,
"%s Scheduled Ack/Nack polling on FN=%d, TS=%d\n",
- name(), poll_fn, ts);
+ name(), poll_fn, poll_ts);
}
}
diff --git a/src/tbf_ul.cpp b/src/tbf_ul.cpp
index 1ccfa27..4754e11 100644
--- a/src/tbf_ul.cpp
+++ b/src/tbf_ul.cpp
@@ -127,6 +127,7 @@ struct msgb *gprs_rlcmac_ul_tbf::create_ul_ack(uint32_t fn, uint8_t ts)
if (final) {
poll_state = GPRS_RLCMAC_POLL_SCHED;
poll_fn = (fn + 13) % 2715648;
+ poll_ts = ts;
/* waiting for final acknowledge */
ul_ack_state = GPRS_RLCMAC_UL_ACK_WAIT_ACK;
m_final_ack_sent = 1;
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp
index d2b4cfc..0ff4f98 100644
--- a/tests/tbf/TbfTest.cpp
+++ b/tests/tbf/TbfTest.cpp
@@ -605,6 +605,7 @@ static void send_control_ack(gprs_rlcmac_tbf *tbf)
RlcMacUplink_t ulreq = {0};
OSMO_ASSERT(tbf->poll_fn != 0);
+ OSMO_ASSERT(tbf->is_control_ts(tbf->poll_ts));
ulreq.u.MESSAGE_TYPE = MT_PACKET_CONTROL_ACK;
Packet_Control_Acknowledgement_t *ctrl_ack =
@@ -612,7 +613,7 @@ static void send_control_ack(gprs_rlcmac_tbf *tbf)
ctrl_ack->PayloadType = GPRS_RLCMAC_CONTROL_BLOCK;
ctrl_ack->TLLI = tbf->tlli();
- send_ul_mac_block(tbf->bts, tbf->trx->trx_no, tbf->control_ts,
+ send_ul_mac_block(tbf->bts, tbf->trx->trx_no, tbf->poll_ts,
&ulreq, tbf->poll_fn);
}
@@ -1043,7 +1044,7 @@ static void test_tbf_dl_reuse()
ack->DOWNLINK_TFI = dl_tbf1->tfi();
ack->Ack_Nack_Description.FINAL_ACK_INDICATION = 1;
- send_ul_mac_block(&the_bts, 0, ts_no, &ulreq, dl_tbf1->poll_fn);
+ send_ul_mac_block(&the_bts, 0, dl_tbf1->poll_ts, &ulreq, dl_tbf1->poll_fn);
OSMO_ASSERT(dl_tbf1->state_is(GPRS_RLCMAC_WAIT_RELEASE));
diff --git a/tests/tbf/TbfTest.err b/tests/tbf/TbfTest.err
index 350966e..80f3f85 100644
--- a/tests/tbf/TbfTest.err
+++ b/tests/tbf/TbfTest.err
@@ -61,7 +61,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) append
TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) start Packet Downlink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Downlink Assignment -------------------------
-TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Scheduled DL Assignment polling on FN=13
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Scheduled DL Assignment polling on FN=13, TS=4
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) (TRX=0, TS=4)
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
@@ -142,7 +142,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) append
TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) start Packet Downlink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Downlink Assignment -------------------------
-TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Scheduled DL Assignment polling on FN=13
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Scheduled DL Assignment polling on FN=13, TS=4
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) (TRX=0, TS=4)
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
@@ -223,7 +223,7 @@ TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) append
TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) start Packet Downlink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Downlink Assignment -------------------------
-TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Scheduled DL Assignment polling on FN=13
+TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) Scheduled DL Assignment polling on FN=13, TS=4
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xffeeddcc DIR=DL STATE=FLOW) (TRX=0, TS=4)
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
@@ -1549,7 +1549,7 @@ Change control TS to 7 until assinment is complete.
TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN)s start Packet Uplink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Uplink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654270 block=8 data=4f 28 5e 24 46 68 8f 1d 00 00 88 00 08 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -1633,7 +1633,7 @@ Change control TS to 7 until assinment is complete.
TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN)s start Packet Uplink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Uplink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654270 block=8 data=4f 28 5e 24 46 68 8f 1d 00 00 88 00 08 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -1683,7 +1683,7 @@ Received RTS for PDCH: TRX=0 TS=7 FN=2654275 block_nr=9 scheduling USF=0 for req
TBF(TFI=0 TLLI=0xf1223344 DIR=DL STATE=ASSIGN) start Packet Downlink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Downlink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW) Scheduled DL Assignment polling on FN=2654288
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW) Scheduled DL Assignment polling on FN=2654288, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654275 block=9 data=48 08 00 00 0c 72 00 02 08 00 80 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -1731,7 +1731,7 @@ TX: Immediate Assignment Uplink (AGCH)
Sending data request: trx=0 ts=0 sapi=2 arfcn=0 fn=0 block=0 data=2d 06 3f 10 0f 00 00 73 8c f6 07 00 c0 0c 68 ab 2b 2b 2b 2b 2b 2b 2b
Searching for first unallocated TFI: TRX=0
Found TFI=1.
-TBF(TFI=0 TLLI=0xf1223344 DIR=DL STATE=FINISHED) poll timeout for FN=2654292 (curr FN 2654335)
+TBF(TFI=0 TLLI=0xf1223344 DIR=DL STATE=FINISHED) poll timeout for FN=2654292, TS=7 (curr FN 2654335)
- Timeout for polling PACKET DOWNLINK ACK.
- Assignment was on PACCH
- No downlink ACK received yet
@@ -1765,7 +1765,7 @@ Received RTS for PDCH: TRX=0 TS=7 FN=2654335 block_nr=11 scheduling USF=0 for re
TBF(TFI=1 TLLI=0xf5667788 DIR=UL STATE=ASSIGN)s start Packet Uplink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Uplink Assignment -------------------------
-TBF(TFI=1 TLLI=0xf5667788 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654348
+TBF(TFI=1 TLLI=0xf5667788 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654348, TS=7
Scheduling control message at RTS for TBF(TFI=1 TLLI=0xf5667788 DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654335 block=11 data=48 28 5e ac ce f1 0f 1d 00 00 88 40 09 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -1835,7 +1835,7 @@ Change control TS to 7 until assinment is complete.
TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN)s start Packet Uplink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Uplink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654270 block=8 data=4f 28 5e 24 46 68 83 1d 00 00 88 00 08 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -1930,7 +1930,7 @@ Change control TS to 7 until assinment is complete.
TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN)s start Packet Uplink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Uplink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654340
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654340, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654327 block=9 data=4f 28 5e 24 46 68 83 1d 00 00 88 00 08 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -2010,7 +2010,7 @@ Change control TS to 7 until assinment is complete.
TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN)s start Packet Uplink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Uplink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654270 block=8 data=4f 28 5e 24 46 68 83 1d 00 00 88 00 08 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -2163,7 +2163,7 @@ Change control TS to 7 until assinment is complete.
TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN)s start Packet Uplink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Uplink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Uplink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) Scheduled UL Assignment polling on FN=2654283, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=ASSIGN) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654270 block=8 data=4f 28 5e 24 46 68 83 1d 00 00 88 00 08 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -2252,7 +2252,7 @@ Received RTS for PDCH: TRX=0 TS=7 FN=2654275 block_nr=9 scheduling USF=0 for req
TBF(TFI=0 TLLI=0xf1223344 DIR=DL STATE=ASSIGN) start Packet Downlink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Downlink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW) Scheduled DL Assignment polling on FN=2654288
+TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW) Scheduled DL Assignment polling on FN=2654288, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654275 block=9 data=48 08 00 00 0c 72 00 02 08 00 80 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))
@@ -2881,7 +2881,7 @@ Received RTS for PDCH: TRX=0 TS=7 FN=2654400 block_nr=2 scheduling USF=0 for req
TBF(TFI=1 TLLI=0xf1223344 DIR=DL STATE=ASSIGN) start Packet Downlink Assignment (PACCH)
+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Downlink Assignment -------------------------
-TBF(TFI=0 TLLI=0xf1223344 DIR=DL STATE=WAIT RELEASE) Scheduled DL Assignment polling on FN=2654413
+TBF(TFI=0 TLLI=0xf1223344 DIR=DL STATE=WAIT RELEASE) Scheduled DL Assignment polling on FN=2654413, TS=7
Scheduling control message at RTS for TBF(TFI=0 TLLI=0xf1223344 DIR=DL STATE=WAIT RELEASE) (TRX=0, TS=7)
Sending data request: trx=0 ts=7 sapi=5 arfcn=0 fn=2654400 block=2 data=48 08 20 08 0c 72 00 02 18 00 80 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
Got RLC block, coding scheme: CS-1, length: 23 (23))