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Avoid moving DL-TBF from old_msg to new_ms during ms_merge 

The DL-TBF assigned to another MS object may have a totally different
set of reserved resources (TS set, TRX, etc.), so one cannot simply move
those to the new MS. To start with, if the 2 MS are on different TRX it
is clear that one of them will not be really in operation. That's most
probably the DL-TBF being in ASSIGN state on CCCH waiting for PCUIF_CNF
and later X2002 to trigger to start sending DL blocks, but without
confirmation whether the MS is really there. Since the other new MS
object probably has a UL-TBF, that's the one probably operative, and
hence a new DL-TBF can be created at that same time and assigned through
UL-TBF's PACCH.

Unit test test_ms_merge_dl_tbf_different_trx showcases the above
scenario.

Related: SYS#6231
Related: OS#5700
Related: 677bebbe5c
Change-Id: Ie8cb49d5492cfc4cbf8340f3f376b0e6105e8c82
This commit is contained in:
Pau Espin 2022-12-16 18:39:29 +01:00
parent 0aacd21658
commit d1058b9445
4 changed files with 98 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/gprs_ms.c
View File

@ -453,15 +453,6 @@ void ms_merge_and_clear_ms(struct GprsMs *ms, struct GprsMs *old_ms)
llc_queue_move_and_merge(&ms->llc_queue, &old_ms->llc_queue);
if (!ms_dl_tbf(ms) && ms_dl_tbf(old_ms)) {
struct gprs_rlcmac_dl_tbf *dl_tbf = ms_dl_tbf(old_ms);
LOGPTBFDL(dl_tbf, LOGL_NOTICE,
"Merge MS: Move DL TBF: %s => %s\n",
old_ms_name, ms_name(ms));
/* Move the DL TBF to the new MS */
tbf_set_ms(dl_tbf_as_tbf(dl_tbf), ms);
}
/* Clean up the old MS object */
/* TODO: Use timer? */
if (ms_ul_tbf(old_ms) && !tbf_timers_pending((struct gprs_rlcmac_tbf *)ms_ul_tbf(old_ms), T_MAX))

14
src/tbf_dl_fsm.c
View File

@ -163,7 +163,19 @@ static void st_assign(struct osmo_fsm_inst *fi, uint32_t event, void *data)
* listening on PDCH) in order to move to FLOW state and start
* transmitting data to it. When X2002 triggers (see cb timer
* end of the file) it will send TBF_EV_ASSIGN_READY_CCCH back
* to us here. */
* to us here.
*/
if (!(ctx->state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH))) {
/* This can happen if we initiated a CCCH DlAss from an
* older TBF object (same TLLI) towards BTS, and the DL-TBF
* was recreated and is now trying to be assigned throguh
* PACCH.
*/
LOGPTBFDL(ctx->dl_tbf, LOGL_INFO,
"Ignoring event ASSIGN_PCUIF_CNF from BTS "
"(CCCH was not requested on current assignment)\n");
break;
}
fi->T = -2002;
val = osmo_tdef_get(the_pcu->T_defs, fi->T, OSMO_TDEF_MS, -1);
sec = val / 1000;

27
tests/tbf/TbfTest.cpp
View File

@ -2449,7 +2449,9 @@ static void test_ms_merge_dl_tbf_different_trx(void)
gprs_bssgp_init(bts, 5234, 5234, 1, 1, false, 0, 0, 0);
/* Handle LLC frame 1. This will create the TBF we want in TRX1 and
* we'll have it upgrade to multislot on TRX0 later. */
* we'll have it upgrade to multislot on TRX0 later. This will trigger a
* CCCH Dl ImAss towards BTS PCUIF. The confirmation from BTS is
* injected further below (TBF_EV_ASSIGN_PCUIF_CNF). */
memset(llc_buf, 1, sizeof(llc_buf));
rc = dl_tbf_handle(bts, old_tlli, 0, imsi, ms_class, 0,
delay_csec, llc_buf, sizeof(llc_buf));
@ -2478,28 +2480,21 @@ static void test_ms_merge_dl_tbf_different_trx(void)
rc = dl_tbf_handle(bts, new_tlli, old_tlli, imsi, ms_class, 0,
delay_csec, llc_buf, sizeof(llc_buf));
OSMO_ASSERT(rc >= 0);
/* Here we assert DL-TBF is currently moved to the new MS, which is wrong! */
OSMO_ASSERT(dl_tbf == ms_dl_tbf(second_ms));
/* Here we assert a new DL-TBF is created in the new MS (hence old from TRX1 is deleted and new one is in TRX0): */
dl_tbf = ms_dl_tbf(second_ms);
OSMO_ASSERT(tbf_get_trx(dl_tbf) == trx0);
OSMO_ASSERT(dl_tbf->control_ts != old_dl_control_ts);
OSMO_ASSERT(dl_tbf == llist_first_entry_or_null(&trx0->dl_tbfs, struct llist_item, list)->entry);
OSMO_ASSERT(NULL == llist_first_entry_or_null(&trx1->dl_tbfs, struct llist_item, list));
/* Here BTS would answer with data_cnf and trigger
* bts_rcv_imm_ass_cnf(), which would trigger TBF_EV_ASSIGN_PCUIF_CNF.
* That in turn would set up timer X2002. Finally, X2002 timeout
* moves it to ASSIGN state for multislot upgrade. We set X2002 timeout to 0 here to get
* immediate trigger through osmo_select_main() */
* Since that's for an older DL-TBF assignment which no longer exists, it is ignored. */
OSMO_ASSERT(osmo_tdef_set(the_pcu->T_defs, -2002, 0, OSMO_TDEF_MS) == 0);
osmo_fsm_inst_dispatch(ms_dl_tbf(second_ms)->state_fi, TBF_EV_ASSIGN_PCUIF_CNF, NULL);
osmo_select_main(0);
OSMO_ASSERT(dl_tbf == ms_dl_tbf(second_ms));
OSMO_ASSERT(dl_tbf->state_is(TBF_ST_ASSIGN));
/* Here we validate DL-TBF was intially allocated in TRX1 but moved to TRX0 during multislot upgrade: */
OSMO_ASSERT(tbf_get_trx(dl_tbf) == trx0);
OSMO_ASSERT(old_dl_control_ts != dl_tbf->control_ts);
/* dl_tbf is still in the list of trx1 so that the PktDlAss on the old
* TRX/TS can be scheduled to assign the new TRX/TS allocation: */
OSMO_ASSERT(dl_tbf == llist_first_entry_or_null(&trx1->dl_tbfs, struct llist_item, list)->entry);
/* get the PACCH PktDlAss for the DL-TBF: */
/* get the PACCH PktDlAss for the DL-TBF, allocated one the UL-TBF from the new MS obj: */
request_dl_rlc_block(dl_tbf->bts, dl_tbf->control_ts, &fn);
fprintf(stderr, "=== end %s ===\n", __func__);

109
tests/tbf/TbfTest.err
View File

@ -2319,25 +2319,49 @@ TBF(UL:TFI-0-0-1:STATE-FLOW:GPRS:TLLI-0xf5667788) No gaps in received block, las
Old MS: TLLI = 0xf1223344, TA = 7, IMSI = 0011223344, LLC = 0
There is a new MS object for the same MS: (0xf1223344, '0011223344') -> (0xf5667788, '')
MS(TLLI-0xf5667788:TA-7:MSCLS-1-0:UL) Merge MS: MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:UL:DL)
TBF(DL:TFI-0-0-0:STATE-FINISHED:GPRS:IMSI-0011223344:TLLI-0xf1223344) Merge MS: Move DL TBF: MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:UL:DL) => MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL)
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:UL) Detaching TBF: TBF(DL:TFI-0-0-0:STATE-FINISHED:GPRS:IMSI-0011223344:TLLI-0xf1223344)
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL) Attaching DL TBF: TBF(DL:TFI-0-0-0:STATE-FINISHED:GPRS:IMSI-0011223344:TLLI-0xf5667788)
TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344) free
PDCH(bts=0,trx=0,ts=7) Detaching TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344), 2 TBFs, USFs = 03, TFIs = 00000003.
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0) Detaching TBF: TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344)
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:DL) Detaching TBF: TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344)
********** UL-TBF ends here **********
UL_ACK_TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344){NONE}: Deallocated
UL_TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344){FLOW}: Deallocated
UL_ASS_TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344){NONE}: Deallocated
DL_ASS_TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344){NONE}: Deallocated
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0) Clearing MS object
MS(TA-7:MSCLS-1-0) Destroying MS object
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:DL) Clearing MS object
Modifying MS object, TLLI: 0xf5667788 confirmed
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL:DL) appending 4 bytes to DL LLC queue
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL) appending 4 bytes to DL LLC queue
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL) ********** DL-TBF starts here **********
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL) Allocating DL TBF
UL_ASS_TBF{NONE}: Allocated
DL_ASS_TBF{NONE}: Allocated
DL_TBF{NEW}: Allocated
[DL] algo A <multi> (suggested TRX: 0): Alloc start
- Skipping TS 0, because not enabled
- Skipping TS 1, because not enabled
- Skipping TS 2, because not enabled
- Skipping TS 3, because not enabled
- Skipping TS 4, because not enabled
- Skipping TS 5, because not enabled
- Skipping TS 6, because not enabled
[DL] Assign downlink TS=7 TFI=1
PDCH(bts=0,trx=0,ts=7) Attaching TBF(DL:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788), 2 TBFs, USFs = 02, TFIs = 00000003.
TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788) Setting Control TS PDCH(bts=0,trx=0,ts=7)
TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788) Allocated: trx = 0, ul_slots = 80, dl_slots = 80
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL) Attaching DL TBF: TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788)
TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788) [DOWNLINK] START (PACCH)
TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788) Send downlink assignment on PACCH, because TBF(UL:TFI-0-0-1:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf5667788) exists
DL_ASS_TBF(UL:TFI-0-0-1:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf5667788){NONE}: Received Event SCHED_ASS
DL_ASS_TBF(UL:TFI-0-0-1:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf5667788){NONE}: state_chg to SEND_ASS
DL_TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788){NEW}: Received Event ASSIGN_ADD_PACCH
TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788) set ass. type PACCH [prev CCCH:0, PACCH:0]
DL_TBF(DL:TFI-0-0-1:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf5667788){NEW}: state_chg to ASSIGN
TBF(DL:TFI-0-0-1:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf5667788) Starting timer X2001 [assignment (PACCH)] with 2 sec. 0 microsec
New MS: TLLI = 0xf5667788, TA = 7, IMSI = 0011223344, LLC = 1
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:UL:DL) Destroying MS object
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0:DL) Detaching TBF: TBF(UL:TFI-0-0-1:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf5667788)
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0) Detaching TBF: TBF(DL:TFI-0-0-0:STATE-FINISHED:GPRS:IMSI-0011223344:TLLI-0xf5667788)
MS(IMSI-0011223344:TLLI-0xf5667788:TA-7:MSCLS-1-0) Detaching TBF: TBF(DL:TFI-0-0-1:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf5667788)
MS(TA-7:MSCLS-1-0:DL) Destroying MS object
MS(TA-7:MSCLS-1-0) Detaching TBF: TBF(DL:TFI-0-0-0:STATE-FINISHED:GPRS)
=== end test_tbf_ra_update_rach ===
=== start test_tbf_dl_flow_and_rach_two_phase ===
PDCH(bts=0,trx=0,ts=7) PDCH state: disabled => enabled
@ -2700,20 +2724,16 @@ TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS) Decoded premier TLLI=0xf1223344 of UL DATA TFI
Modifying MS object, UL TLLI: 0xffffffff -> 0xf1223344, not yet confirmed
MS(TLLI-0xf1223344:TA-7:MSCLS-0-0:UL) Merge MS: MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:DL)
Modifying MS object, TLLI = 0xf1223344, MS class 0 -> 1
TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344) Merge MS: Move DL TBF: MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:DL) => MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:UL)
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0) Detaching TBF: TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344)
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:UL) Attaching DL TBF: TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344)
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0) Clearing MS object
MS(TA-7:MSCLS-1-0) Destroying MS object
UL_TBF(UL:TFI-0-0-0:STATE-NEW:GPRS){FLOW}: Received Event FIRST_UL_DATA_RECVD
TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344) Got first UL data while DL-TBF pending, killing it
TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344) free
PDCH(bts=0,trx=0,ts=7) Detaching TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344), 1 TBFs, USFs = 01, TFIs = 00000001.
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0:UL) Detaching TBF: TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344)
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0) Detaching TBF: TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-0011223344:TLLI-0xf1223344)
********** DL-TBF ends here **********
DL_TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf1223344){ASSIGN}: Deallocated
UL_ASS_TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf1223344){NONE}: Deallocated
DL_ASS_TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-0011223344:TLLI-0xf1223344){NONE}: Deallocated
MS(IMSI-0011223344:TLLI-0xf1223344:TA-7:MSCLS-1-0) Clearing MS object
MS(TA-7:MSCLS-1-0) Destroying MS object
UL_TBF(UL:TFI-0-0-0:STATE-NEW:GPRS){FLOW}: Received Event FIRST_UL_DATA_RECVD
TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344) Assembling frames: (len=20)
TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344) Frame 1 starts at offset 4, length=16, is_complete=1
TBF(UL:TFI-0-0-0:STATE-FLOW:GPRS:IMSI-0011223344:TLLI-0xf1223344) complete UL frame len=16
@ -9503,34 +9523,53 @@ MS(TLLI-0xecc1f953:TA-220:MSCLS-0-0) Attaching UL TBF: TBF(UL:TFI-0-0-0:STATE-NE
There is a new MS object for the same MS: (0xa3c2f953, '001001000000001') -> (0xecc1f953, '')
MS(TLLI-0xecc1f953:TA-220:MSCLS-0-0:UL) Merge MS: MS(IMSI-001001000000001:TLLI-0xa3c2f953:TA-220:MSCLS-11-0:DL)
Modifying MS object, TLLI = 0xecc1f953, MS class 0 -> 11
TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xa3c2f953) Merge MS: Move DL TBF: MS(IMSI-001001000000001:TLLI-0xa3c2f953:TA-220:MSCLS-11-0:DL) => MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL)
TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xa3c2f953) free
PDCH(bts=0,trx=1,ts=5) Detaching TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xa3c2f953), 1 TBFs, USFs = 00, TFIs = 00000001.
MS(IMSI-001001000000001:TLLI-0xa3c2f953:TA-220:MSCLS-11-0) Detaching TBF: TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xa3c2f953)
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL) Attaching DL TBF: TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953)
********** DL-TBF ends here **********
DL_TBF(DL:TFI-0-1-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xa3c2f953){ASSIGN}: Deallocated
UL_ASS_TBF(DL:TFI-0-1-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xa3c2f953){NONE}: Deallocated
DL_ASS_TBF(DL:TFI-0-1-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xa3c2f953){NONE}: Deallocated
MS(IMSI-001001000000001:TLLI-0xa3c2f953:TA-220:MSCLS-11-0) Clearing MS object
MS(TA-220:MSCLS-11-0) Destroying MS object
Modifying MS object, TLLI: 0xecc1f953 confirmed
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL:DL) appending 19 bytes to DL LLC queue
DL_TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){ASSIGN}: Received Event ASSIGN_PCUIF_CNF
TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Starting timer X2002 [assignment (AGCH)] with 0 sec. 0 microsec
DL_TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){ASSIGN}: Timeout of X2002
TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Changing Control TS PDCH(bts=0,trx=1,ts=5) -> PDCH(bts=0,trx=0,ts=2)
TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Upgrade to multislot
PDCH(bts=0,trx=1,ts=5) Detaching TBF(DL:TFI-0-1-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953), 1 TBFs, USFs = 00, TFIs = 00000001.
[DL] algo B <multi> (suggested TRX: -1): Alloc start
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL) appending 19 bytes to DL LLC queue
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL) ********** DL-TBF starts here **********
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL) Allocating DL TBF
UL_ASS_TBF{NONE}: Allocated
DL_ASS_TBF{NONE}: Allocated
DL_TBF{NEW}: Allocated
[DL] algo B <multi> (suggested TRX: 0): Alloc start
Found first unallocated TRX=0 TFI=0
Selected DL slots: (TS=0)".DDDddd."(TS=7), multi
[DL] algo B <multi> (suggested TRX: -1): using 3 slots
[DL] algo B <multi> (suggested TRX: 0): using 3 slots
- Assigning DL TS 1
PDCH(bts=0,trx=0,ts=1) Attaching TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953), 1 TBFs, USFs = 00, TFIs = 00000001.
PDCH(bts=0,trx=0,ts=1) Attaching TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953), 1 TBFs, USFs = 00, TFIs = 00000001.
- Assigning DL TS 2
PDCH(bts=0,trx=0,ts=2) Attaching TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953), 1 TBFs, USFs = 01, TFIs = 00000001.
PDCH(bts=0,trx=0,ts=2) Attaching TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953), 1 TBFs, USFs = 01, TFIs = 00000001.
- Assigning DL TS 3
PDCH(bts=0,trx=0,ts=3) Attaching TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953), 1 TBFs, USFs = 00, TFIs = 00000001.
TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Send downlink assignment on PACCH, because TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) exists
DL_ASS_TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){NONE}: Received Event SCHED_ASS
DL_ASS_TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){NONE}: state_chg to SEND_ASS
DL_TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){ASSIGN}: Received Event ASSIGN_ADD_PACCH
TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) set ass. type PACCH [prev CCCH:0, PACCH:0]
PDCH(bts=0,trx=0,ts=3) Attaching TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953), 1 TBFs, USFs = 00, TFIs = 00000001.
TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Setting Control TS PDCH(bts=0,trx=0,ts=2)
TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Allocated: trx = 0, ul_slots = 04, dl_slots = 0e
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL) Attaching DL TBF: TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953)
TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) [DOWNLINK] START (PACCH)
TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Send downlink assignment on PACCH, because TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) exists
DL_ASS_TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){NONE}: Received Event SCHED_ASS
DL_ASS_TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){NONE}: state_chg to SEND_ASS
DL_TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){NEW}: Received Event ASSIGN_ADD_PACCH
TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) set ass. type PACCH [prev CCCH:0, PACCH:0]
DL_TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){NEW}: state_chg to ASSIGN
TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Starting timer X2001 [assignment (PACCH)] with 2 sec. 0 microsec
DL_TBF(DL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){ASSIGN}: Received Event ASSIGN_PCUIF_CNF
TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Ignoring event ASSIGN_PCUIF_CNF from BTS (CCCH was not requested on current assignment)
DL_ASS_TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){SEND_ASS}: Received Event CREATE_RLCMAC_MSG
PDCH(bts=0,trx=0,ts=2) POLL scheduled at FN 0 + 13 = 13
TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) start Packet Downlink Assignment (PACCH) for TBF(DL:TFI-0-0-0:STATE-ASSIGN:GPRS:IMSI-001001000000001:TLLI-0xecc1f953)
+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++
------------------------- TX : Packet Downlink Assignment -------------------------
TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953) Scheduled DL Assignment polling on PACCH (FN=13, TS=2)
DL_ASS_TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953){SEND_ASS}: state_chg to WAIT_ACK
PDCH(bts=0,trx=0,ts=2) FN=0 Scheduling control message at RTS for TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953)
=== end test_ms_merge_dl_tbf_different_trx ===
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:UL:DL) Destroying MS object
MS(IMSI-001001000000001:TLLI-0xecc1f953:TA-220:MSCLS-11-0:DL) Detaching TBF: TBF(UL:TFI-0-0-0:STATE-NEW:GPRS:IMSI-001001000000001:TLLI-0xecc1f953)