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235 Commits (e80aa0a55363382df6f31b8e54331e4f6c26fa45)

Author SHA1 Message Date
Ismael Gomez f49fbd6d02
Fix the order of HO/reest measurement actions (#1696) 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
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 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
Francisco Paisana 5242f9422b fix deadlock in handover 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 b1670c005b remove shadowed variables for reestablishment during handover 4 years ago
Francisco Paisana 8d10aa906e move defer_task to switch case in the rrc 4 years ago
Xavier Arteaga 4e1e8cea1a SRSUE: MAC HARQ entities vector is fixed 4 years ago
Francisco Paisana 4fb8011a6d updated phy controller to use task scheduler 4 years ago
Francisco Paisana 9c5471b094 more ergonomic event callback 4 years ago
Francisco Paisana 58a9610efa use of stack event loop to propagate cell search and selection results 4 years ago
Francisco Paisana d48a45976e moved cell selection/search complete event signalling out of phy_controller 4 years ago
Francisco Paisana 48138b5281 removal of phy cell selection procedure as it now it is replaced by phy controller 4 years ago
Francisco Paisana 489969722e implemented phy controller FSM to perform cell selection & search. The controller also tracks the phy sync state 4 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
 4 years ago
Francisco Paisana 5e06430455 removal of stack handler interface 4 years ago
Francisco Paisana 7c364070ee creation of task scheduler interface for classes/functions running outside the main control thread 4 years ago
Francisco Paisana 039977aeb5 renamed interfaces 4 years ago
Francisco Paisana 1a9c04bf2f use of task scheduler handle in pdcp 4 years ago
Francisco Paisana 4f5e65781f created task scheduler class to deal with timers, thread pool, multiqueue, internal tasks 4 years ago
Francisco Paisana 8c920837d6 fix issue when adding neighbour cell that matches serving cell 4 years ago
Francisco Paisana d746115130 moved serving cell to meas_cell_list 4 years ago
Francisco Paisana 928459408e fix cell meas sorting issue 4 years ago
Francisco Paisana d2dd30c8cb rrc_meas_test failing 4 years ago
Francisco Paisana 9a1f69113f created class for managing neighbor cells of rrc 4 years ago
Francisco Paisana 069dc1f751 moved cell struct of srsue::rrc to separate file 4 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
 4 years ago
Francisco Paisana d12b037e0d make cell reselection periodic and with period of 20msec 4 years ago
Francisco Paisana c6f422d23e improved cell selection test in srsue::rrc 4 years ago
Francisco Paisana 3e016b8095 select serving cell during cell selection if it is stronger than neighbors 4 years ago
Ismael Gomez e378a45db0 Reorganized priorities to avoid GW starve the CPU 4 years ago
Andre Puschmann a5c0f96fa7 srsue: limit sync queue length to 1 for ZMQ radio 
apply same change that we've done on the eNB also on the UE
to avoid the PHY processing TTIs faster than the stack.

Without that, we see lots of those in the logs:

...
08:39:17.580325 [STCK] [W] Detected slow task processing (sync_queue_len=7).
...
 4 years ago
Andre Puschmann e981d5ee70 rrc,ue: refactor wait conditions before transition to RRC idle 
before entering RRC idle, after receiving a RRC connection release for example,
we need to wait until the RLC for SRB1 or SRB2 have been flushed, i.e.
the RLC has acknowledged the reception of the message.

Previously we have only waited for SRB1 but the message can also be received on SRB2
and in this case both bearers need to be checked.

The method is now streamlined to check both SRBs and is also used when
checking the msg transmission of an detach request.
 4 years ago
Francisco Paisana fddcbc9879 fix vnf-ue stack interface 4 years ago
Daniel Willmann 31f1516d74 Use callback to establish connection before sending PDUs in TestmodeB 4 years ago
Francisco Paisana f0874b780b add radio_base/null classes 4 years ago
Ismael Gomez 54b331c504
Adds best neighbour to CSV and stdout metrics (#1440) 4 years ago
Xavier Arteaga de230826b9 Added string helper for removing spaces and parsing list 
Fix

Fix string parser
 4 years ago
Francisco Paisana 81848deae2 extended handover procedure to accommodate all the handover (phy cell select + ra) 5 years ago
Francisco Paisana 556fcb69e7 fix handover my defering to next tti the reestablishment of bearers 5 years ago
Francisco Paisana 37ce475398 fix+refactor of the ue rrc handover preparation procedure to avoid deadlocking 5 years ago
Francisco Paisana 8f4f37e89b remove more unused rrc variables 5 years ago
Francisco Paisana 29fd147d41 remove unused rrc variables 5 years ago
Francisco Paisana b2aae8763b made mac_nr and rrc_nr final to avoid using virtual dtors 5 years ago
Francisco Paisana 452c043370 created a global map of lcids to srbs/drbs for NR 5 years ago
Francisco Paisana 4cf756434f add srsue::rrc_nr srsue::ue_stack_nr 5 years ago