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408 Commits (51c6e8d1a6b97a124a8c7d7eb4069c961d1d9596)

Author SHA1 Message Date
Ismael Gomez c02e920b6b Trigger RA after SR failed directly (don't wait for next BSR trigger) 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
 5 years ago
Pedro Alvarez c686e6cea1
SRSUE: Set SCell configuration is unlocking (#1544) 5 years ago
Ismael Gomez 06eba7eb72 Discard cells if not found during cel selection 5 years ago
Andre Puschmann 138ec1f8e7 nas,usim: remove use of shadowed variables 5 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
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 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
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
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 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
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
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).
...
 5 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.
 5 years ago
Francisco Paisana a0606669e2 fix ue nr gw initialization 5 years ago
Francisco Paisana fddcbc9879 fix vnf-ue stack interface 5 years ago
Andre Puschmann aca307b79b ue,rrc: don't log neighbor list in info mode 
this floods the info log
 5 years ago
Francisco Paisana f0874b780b add radio_base/null classes 5 years ago
Francisco Paisana a42c20b73d preemptive transmission of the rrc reconf complete 5 years ago
Ismael Gomez 54b331c504
Adds best neighbour to CSV and stdout metrics (#1440) 5 years ago
Xavier Arteaga de230826b9 Added string helper for removing spaces and parsing list 
Fix

Fix string parser
 5 years ago
Andre Puschmann d1cb5531d6 demux: fix typo 5 years ago
Andre Puschmann c71d6b9204 ue,rrc: improve error message when cell selection fails due to missing SIBs 5 years ago
Pedro Alvarez 396dc82b98 Swapped resume with reestablish in the UE. 5 years ago
Francisco Paisana 17cd3a02cb fix pcch error message 5 years ago
Francisco Paisana 877dee2ba8 fix use of phy cell select procedure 5 years ago
Francisco Paisana 3d76cc6c1a fix dangling pointer in cell selection dispatching 5 years ago
Francisco Paisana 81848deae2 extended handover procedure to accommodate all the handover (phy cell select + ra) 5 years ago