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srsLTE
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1536 Commits

Author SHA1 Message Date
Francisco Paisana 997552ee45 stop t304 when handover is successful 2020-08-24 17:48:50 +01:00
Francisco Paisana 1d8286eb62 always wait for t304 to expire in case of failed handover 2020-08-24 17:48:50 +01:00
Francisco Paisana ccc8ab70ef stop t304 on handover procedure exit 2020-08-24 17:48:50 +01:00
Francisco Paisana db15f43a77 set reestablishment cause correctly on handover failure 2020-08-24 17:48:50 +01:00
Francisco Paisana b1670c005b remove shadowed variables for reestablishment during handover 2020-08-24 17:48:50 +01:00
Xavier Arteaga 0e96ef3df0 Channel emulator takes SNR as input parameter 2020-08-24 10:46:11 +02:00
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.
 2020-08-21 12:03:07 +02:00
Francisco Paisana 8c9e596f89 refactored s1ap handover request interface. cleaned up rrc tenb s1 handover code 2020-08-21 00:05:58 +01:00
Francisco Paisana 7cd4f45d62 fsm refactor. 
- avoid triggering directly a subfsm
- improved metafunctions
- other cleanups
 2020-08-18 16:07:21 +01:00
Francisco Paisana 841b884796 remove extern C flags from common_helper.h 2020-08-18 13:54:23 +01:00
Francisco Paisana 5be5409f62 scaling governor function moved to common header file 2020-08-18 13:54:23 +01:00
Francisco Paisana 087805d222 add warning if scaling governor is not performance mode 2020-08-18 13:54:23 +01:00
Francisco Paisana 8d10aa906e move defer_task to switch case in the rrc 2020-08-17 22:49:40 +01:00
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
 2020-08-17 22:49:40 +01:00
faluco e5a792d508 - Fix unused variable. 2020-07-31 13:13:15 +02:00
faluco cfd3f51931
Import of srslog into srsepc and srsenb. (#1574) 
* - Import of srslog into srsepc and srsenb.
* - Removed logger_file and logger_stdout files.
 2020-07-30 19:17:23 +02:00
Xavier Arteaga 202ec283ff SRSUE: fix erroneous code in MUX 2020-07-28 09:31:34 +02:00
Xavier Arteaga 4e1e8cea1a SRSUE: MAC HARQ entities vector is fixed 2020-07-28 09:31:34 +02:00
Xavier Arteaga 09af743361 SRSUE: minor PHY modfifications 2020-07-28 09:31:34 +02:00
Xavier Arteaga 0b02f8948c SRSUE: fix shadow variable 2020-07-28 09:31:34 +02:00
Ismael Gomez c02e920b6b Trigger RA after SR failed directly (don't wait for next BSR trigger) 2020-07-27 17:58:06 +02:00
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.
 2020-07-22 16:04:18 +02:00
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
 2020-07-21 18:35:53 +02:00
Andre Puschmann ce5129467c correct default value of PHY threads in eNB and UE examples 2020-07-21 11:59:45 +02:00
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
 2020-07-21 11:56:43 +02:00
Pedro Alvarez c686e6cea1
SRSUE: Set SCell configuration is unlocking (#1544) 2020-07-20 19:30:25 +02:00
Ismael Gomez 06eba7eb72 Discard cells if not found during cel selection 2020-07-20 15:37:40 +02:00
Andre Puschmann 138ec1f8e7 nas,usim: remove use of shadowed variables 2020-07-20 10:58:10 +02:00
Ismael Gomez 7866f19f6b Use correct target cell when doing reselection in HO 2020-07-17 22:47:59 +02:00
Ismael Gomez 443dee7035
Changes in Cell Selection Procedure (#1557) 
* Fixes RRC cell reselection procedure
 2020-07-17 17:05:19 +02:00
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
 2020-07-15 07:34:14 +02:00
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.
 2020-07-14 17:25:08 +02:00
Francisco Paisana 4fb8011a6d updated phy controller to use task scheduler 2020-07-14 13:33:50 +01:00
Francisco Paisana 36fc88d2e2 fsm log macros, and utility methods to convert event callbacks to move tasks 2020-07-14 13:33:50 +01:00
Francisco Paisana 9c5471b094 more ergonomic event callback 2020-07-14 13:33:50 +01:00
Francisco Paisana 58a9610efa use of stack event loop to propagate cell search and selection results 2020-07-14 13:33:50 +01:00
Francisco Paisana d48a45976e moved cell selection/search complete event signalling out of phy_controller 2020-07-14 13:33:50 +01:00
Francisco Paisana 48138b5281 removal of phy cell selection procedure as it now it is replaced by phy controller 2020-07-14 13:33:50 +01:00
Francisco Paisana 489969722e implemented phy controller FSM to perform cell selection & search. The controller also tracks the phy sync state 2020-07-14 13:33:50 +01:00
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
 2020-07-13 17:05:28 +02:00
Francisco Paisana 5e06430455 removal of stack handler interface 2020-07-13 11:19:25 +01:00
Francisco Paisana 7c364070ee creation of task scheduler interface for classes/functions running outside the main control thread 2020-07-13 11:19:25 +01:00
Francisco Paisana 039977aeb5 renamed interfaces 2020-07-13 11:19:25 +01:00
Francisco Paisana 1a9c04bf2f use of task scheduler handle in pdcp 2020-07-13 11:19:25 +01:00
Francisco Paisana 4f5e65781f created task scheduler class to deal with timers, thread pool, multiqueue, internal tasks 2020-07-13 11:19:25 +01:00
Pedro Alvarez 528777fa29 Added sleep to avoid nas test concurrency issue. 2020-07-09 13:58:51 +01:00
Francisco Paisana 8c920837d6 fix issue when adding neighbour cell that matches serving cell 2020-07-08 00:19:18 +01:00
Francisco Paisana 43db9b81fb fix function ptr issue 2020-07-08 00:19:18 +01:00
Francisco Paisana d746115130 moved serving cell to meas_cell_list 2020-07-08 00:19:18 +01:00
Francisco Paisana 928459408e fix cell meas sorting issue 2020-07-08 00:19:18 +01:00