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1619 Commits (dfeed5251494c017de654940c7a29946b8081082)

Author SHA1 Message Date
Andre Puschmann 624c8142ad ttcn3: refactor cell handling in SS 
this rather large patch changes the way cells are handled in the SS.
It moves RLC and PDCP entities to the cell map of the SS, such that each cell
has its own entities. This allows to support HO operation, for example,
in which two cells need to send SRB messages.

It also extends most of the syssim interface to include the cell name
in all commands so they can be applied on the specified cell only.
 4 years ago
Andre Puschmann 4650a620d9 ttcn3: refactor cell search and selection in TTCN3 PHY 
- make sure only suitable cells are reported/selected
 4 years ago
Andre Puschmann 973de8f78d ttcn3_dut: block OS signals before starting log backend 
this prevents the backend thread from handling the signals. they
are only handled by epoll running in the main thread.

this fixes #1713
 4 years ago
Ismael Gomez b397878d25 Fix comments in ue.conf 4 years ago
faluco c178e362b8 - Rewrite log management so that a log sink can be swapped for each testcase. 4 years ago
faluco 5e8a4c898d
Bring back the circular array object. (#1712) 4 years ago
Xavier Arteaga 52355024e7 SRSUE PHY: move mutex lock to cc worker and unlock for stack calls 4 years ago
Ismael Gomez 4c1d3ef7e8
Fix implementation of Random Access problem (#1689) 
* Fix implementation of Random Access problem

* Apply AS activated condition on RLF before calling Reestablishment
 4 years ago
Ismael Gomez f49fbd6d02
Fix the order of HO/reest measurement actions (#1696) 4 years ago
Andre Puschmann c16ac6c890 ue_stack: only push sync event to event queue is stack is still running 
stopping the UE in ZMQ mode caused a dead-lock because the Stack was
stopped before the PHY causing the sync queue to overflow. Since we
use a queue-length of 1 in ZMQ, mode, the PHY sync thread was blocking to
push a new sync event while the stack thread was already stopped.

this patch makes sure no new sync events are queued after the stack has
been terminated.
 4 years ago
Andre Puschmann aec18a93d1 mux,bsr: refactor UL buffer status reporting 
this patch fixes the UL BSR as per TS 36.321, it includes following
main changes:

* report UL buffer state to reflect the UEs transmit buffer after
  the MAC UL PDU containing the BSR has been built.
  In other words, if the UE, for example, can transmit all outstanding
  data in an UL grant, it will not report any pending data to transmit.

* refactor MUX routines and subheader space calculation
 4 years ago
Andre Puschmann 92d76a5eb6 mac_test: update tests involving BSR handling 
* split existing BSR test into dedicated test for short, long, and trunc
  BSR tests

* update MAC tests that include packing UL BSR.
  (After checking TS 36.321 again it seems we have reported old UL buffer states)
 4 years ago
Ismael Gomez 54eed11e1d Refactor decision for extended CSI/SRS 4 years ago
Ismael Gomez 51521ad8e4 Improved PDCCH blind search and fixed a few issues with ambiguous DCI size with Release 10 4 years ago
Andre Puschmann 14289ebcc6 dl_harq: lower log level when MCS changes in DL grant to debug 
fixes #1489

this is normal behavior and should not result in a warning message.
 4 years ago
Ismael Gomez 06a5bdaab2 Process all calls to RLF in the main RRC task 4 years ago
Francisco Paisana 92221eb780 update of rrc_interface_mac to remove signal from mac to rrc that RA failed in case of handover failure 4 years ago
Francisco Paisana 46e1e101d3 removal of unecessary ho_ra_complete(false) in mac. In case of HO failure, the rrc should let the t304 expire 4 years ago
Francisco Paisana aed9120458 in case of RA problem during handover, the UE cannot trigger RLF. It has to let t304 expire, which will then trigger the reestablishment procedure with the right cause 4 years ago
Francisco Paisana fca1273b3e avoid spurious warnings of trying to start the PRACH when it is already running during handover 4 years ago
Francisco Paisana fddcc3d8ea In the case of Handover, postpone the activation of the CQI and SR config present in the HO command for after the RA proc completion to the target eNB 4 years ago
Andre Puschmann 641a4a5e79 mac_test: fix compilation if PCAP write is enabled 4 years ago
Andre Puschmann 49a7a90698 mac: simplify BSR packing logic 
simplify logic to check whether a BSR fits and, if so, which type.
before the check has been done in two places.

we now also accomodate for the CE subheader size.
 4 years ago
Andre Puschmann 6364a4513c mac_pdu: fix issue when packing CE but no space left in PDU 
we've not checked the return value when adding a new CE, like BSR or PHR,
for a UL MAC PDU. For very small UL grants, this could fail and
we need to remove the subheader again before packing the PDU.

This fixes issue #1649.
 4 years ago
Daniel Willmann 7d0ae71f17 ttcn3_sys_interface: Handle initial cell attenuation 
When new Cells are added they can have an attenuation configured
directly. Honor that setting.
 4 years ago
Francisco Paisana 5242f9422b fix deadlock in handover 4 years ago
Ismael Gomez 72cc4e0ca5 Stop ContentionResolutionTimer on RA error. Updated test 4 years ago
Xavier Arteaga df2c949417 Radio: add individual Rx gain and integrate in srsue 
Fix compilation

Fix compilation

Add missing variable. Wasn't compiling

Radio: revert some changes
 4 years ago
Xavier Arteaga 029f36b449 srsLTE: added efficient integer resampler and srsue/srsenb integration 4 years ago
Xavier Arteaga 1ff74da078 Remove wrong error message 4 years ago
Francisco Paisana 75b204bc52 fix phy ctrl call to cell selection observers 4 years ago
Francisco Paisana 834c0b3929 integrated new observer pattern into phy controller fsm 4 years ago
Francisco Paisana 48dd436d86 integrated observer pattern into rrc phy ctrl fsm 4 years ago
Francisco Paisana 997552ee45 stop t304 when handover is successful 4 years ago
Francisco Paisana 1d8286eb62 always wait for t304 to expire in case of failed handover 4 years ago
Francisco Paisana ccc8ab70ef stop t304 on handover procedure exit 4 years ago
Francisco Paisana db15f43a77 set reestablishment cause correctly on handover failure 4 years ago
Francisco Paisana b1670c005b remove shadowed variables for reestablishment during handover 4 years ago
Xavier Arteaga 0e96ef3df0 Channel emulator takes SNR as input parameter 4 years ago
Andre Puschmann 5e40bfe72c mac_pdu: unpack and print BSR index as well as BSR value in bytes 
before the BSR was extracted but the actual index (between 0 and 63)
was not stored but directly converted into bytes.

for log parsing and debugging it is easier to follow the index
value. this patch therefore adds both values to the log message
and extends the API accordingly.
 4 years ago
Francisco Paisana 8c9e596f89 refactored s1ap handover request interface. cleaned up rrc tenb s1 handover code 4 years ago
Francisco Paisana 7cd4f45d62 fsm refactor. 
- avoid triggering directly a subfsm
- improved metafunctions
- other cleanups
 4 years ago
Francisco Paisana 841b884796 remove extern C flags from common_helper.h 4 years ago
Francisco Paisana 5be5409f62 scaling governor function moved to common header file 4 years ago
Francisco Paisana 087805d222 add warning if scaling governor is not performance mode 4 years ago
Francisco Paisana 8d10aa906e move defer_task to switch case in the rrc 4 years ago
Andre Puschmann 24dfb03b9d rrc: defer manipulations of the RLC/PDCP arrays 
all calls that manipulate the RLC and/or PDCP arrays suffer
from a high deadlock risk if a PHY worker holds the RLC
AM Rx mutex at the same time when the stack wants to carry
out this reconfiguration.

this applies to RRC Reconfigs, but potentially also to RRC Connection
Reestablishment or even RRC Connection Setup, although this should
seldom be the case.

By breaking the call stack between RLC->PDCP->RRC->RCL and
carrying out the reconfig as a single task without holding the
RLC readlock the deadlock should not happen anymore.

This should fix issue #1593
 4 years ago
faluco e5a792d508 - Fix unused variable. 4 years ago
faluco cfd3f51931
Import of srslog into srsepc and srsenb. (#1574) 
* - Import of srslog into srsepc and srsenb.
* - Removed logger_file and logger_stdout files.
 4 years ago
Xavier Arteaga 202ec283ff SRSUE: fix erroneous code in MUX 4 years ago
Xavier Arteaga 4e1e8cea1a SRSUE: MAC HARQ entities vector is fixed 4 years ago
Xavier Arteaga 09af743361 SRSUE: minor PHY modfifications 4 years ago
Xavier Arteaga 0b02f8948c SRSUE: fix shadow variable 4 years ago
Ismael Gomez c02e920b6b Trigger RA after SR failed directly (don't wait for next BSR trigger) 4 years ago
faluco efdff8ba4c
Import srslog into srsue (#1556) 
- Import the srslog project into srslte.
- Ported srsue app to use the new logging framework.
- Implemented a wrapper that dispatches log entries to srslog.
- Renamed an existing log test to be more specific to avoid name clashes.
 4 years ago
Andre Puschmann 1199a79851 fix Scell sync for large cells 
the PSS detection needs more temporary buffer than a full subframe.
we therefore need to allocate and initialize the sync object with
larger maximum size to support Scell search of large cells, e.g.
20 MHz

this fixes issue #1538
 4 years ago
Andre Puschmann ce5129467c correct default value of PHY threads in eNB and UE examples 4 years ago
Andre Puschmann 9550bd3ef8 rlc: revisit interface for MAC and RRC 
* add locked and unlocked version of has_data() since one is
  called from stack and one from PHY threads

* add comments in each interface section as to why locking
  is required or not

* remove RLC rwlock when not required

* move calls only used by RRC to RRC section
 4 years ago
Pedro Alvarez c686e6cea1
SRSUE: Set SCell configuration is unlocking (#1544) 4 years ago
Ismael Gomez 06eba7eb72 Discard cells if not found during cel selection 4 years ago
Andre Puschmann 138ec1f8e7 nas,usim: remove use of shadowed variables 4 years ago
Ismael Gomez 7866f19f6b Use correct target cell when doing reselection in HO 5 years ago
Ismael Gomez 443dee7035
Changes in Cell Selection Procedure (#1557) 
* Fixes RRC cell reselection procedure
 5 years ago
Xavier Arteaga 0192130742 SRSUE/SRSENB: UCI bits are carrier by the lowest serving cell index 
SRSENB: Fix UCI in lowest serving cell index PUSCH transmission
 5 years ago
Andre Puschmann 4fd5395903 change default EARFCN to 3350 or 2.68GHz 
as 3400 or 2.685 GHz is on the edge of band 7, some phones won't connect
to a 20 MHz cell on this EARFCN.

In order to simplify testing with other bandwidths we change the default EARFCN.
 5 years ago
Francisco Paisana 4fb8011a6d updated phy controller to use task scheduler 5 years ago
Francisco Paisana 36fc88d2e2 fsm log macros, and utility methods to convert event callbacks to move tasks 5 years ago
Francisco Paisana 9c5471b094 more ergonomic event callback 5 years ago
Francisco Paisana 58a9610efa use of stack event loop to propagate cell search and selection results 5 years ago
Francisco Paisana d48a45976e moved cell selection/search complete event signalling out of phy_controller 5 years ago
Francisco Paisana 48138b5281 removal of phy cell selection procedure as it now it is replaced by phy controller 5 years ago
Francisco Paisana 489969722e implemented phy controller FSM to perform cell selection & search. The controller also tracks the phy sync state 5 years ago
Andre Puschmann a7911f0dab pdcp,rlc: refactor SDU queueing policy 
this patch refactors the SDU queuing and dropping policy of the RLC and PDCP layer.
the previous design had issues when packets have been generated at a higher
rate above the PDCP than they could be consumed below the RLC.

When the RLC SDU queues were full, we allowed two policies, one to block on the write
and the other to drop the SDU. Both options are not ideal because they either
lead to a blocking stack thread or to lost PDCP PDUs.

To avoid this, this patch makes the following changes:

* PDCP monitors RLC's SDU queue and drops packets on its north-bound SAP if queues are full
  * a new method sdu_queue_is_full() has been added to the RLC interface for PDCP
* remove blocking write from pdcp and rlc write_sdu() interface
  * all writes into queues need to be non-blocking
  * if Tx queues are overflowing, SDUs are dropped above PDCP, not RLC
* log warning if RLC still needs to drop SDUs
  * this case should be avoided with the monitoring mechanism
 5 years ago
Francisco Paisana 5e06430455 removal of stack handler interface 5 years ago
Francisco Paisana 7c364070ee creation of task scheduler interface for classes/functions running outside the main control thread 5 years ago
Francisco Paisana 039977aeb5 renamed interfaces 5 years ago
Francisco Paisana 1a9c04bf2f use of task scheduler handle in pdcp 5 years ago
Francisco Paisana 4f5e65781f created task scheduler class to deal with timers, thread pool, multiqueue, internal tasks 5 years ago
Pedro Alvarez 528777fa29 Added sleep to avoid nas test concurrency issue. 5 years ago
Francisco Paisana 8c920837d6 fix issue when adding neighbour cell that matches serving cell 5 years ago
Francisco Paisana 43db9b81fb fix function ptr issue 5 years ago
Francisco Paisana d746115130 moved serving cell to meas_cell_list 5 years ago
Francisco Paisana 928459408e fix cell meas sorting issue 5 years ago
Francisco Paisana d2dd30c8cb rrc_meas_test failing 5 years ago
Francisco Paisana 9a1f69113f created class for managing neighbor cells of rrc 5 years ago
Francisco Paisana 069dc1f751 moved cell struct of srsue::rrc to separate file 5 years ago
Andre Puschmann 1e4eae7395 nas: log estimated count instead of local rx_count when logging integrity check result 5 years ago
Andre Puschmann bd0c13aad0 ue_stack: bump priority of stack thread 
the stack thread should really run with the next highest priority after
sync + phy workers to make sure it gets enough CPU
 5 years ago
Francisco Paisana 08f9801c76 remove requirement for rrc to be idle and nas attached to run reselection 5 years ago
Francisco Paisana d12b037e0d make cell reselection periodic and with period of 20msec 5 years ago
Francisco Paisana 510687766f added comments in rrc cell select test 5 years ago
Francisco Paisana c6f422d23e improved cell selection test in srsue::rrc 5 years ago
Francisco Paisana 3b1f2719dd return error from cell selection if unable to select serving cell 5 years ago
Francisco Paisana 3e016b8095 select serving cell during cell selection if it is stronger than neighbors 5 years ago
Andre Puschmann 218fa5cf55 ttcn3_dut: fix bug in DUT 
reducing the sync queue len to 1 caused an issue when the
PHY was locking the mutex while trying to push a TTI event
on the stack.

instead of signaling the new TTI within the PHY, we now do it outside
in the DUT (after releasing the PHY mutex)
 5 years ago
Francisco Paisana 84f34bc736 changed to a label filtering approach for ctest 5 years ago
Francisco Paisana ebb8f18000 set some extra tests with the prefix "long_" 5 years ago
Francisco Paisana c6323478d2 remove unecessary sleeps in mac test, and add long_ prefix in long tests 5 years ago
Pedro Alvarez 772ab89391 srsUE: Fix for NAS overflow counter computation. 5 years ago
Ismael Gomez 0382933cb1 Select serving cell if PHY not in sync 5 years ago