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262 Commits (08e24d00af91ac617dd3c57d4bd6baf5896a712a)

Author SHA1 Message Date
Pedro Alvarez 3eb525563a Fix issue reading MNC length in USIM. 4 years ago
Xavier Arteaga 6ae47b6510 SRSUE: Deafult PUCCH/SRS does not imply full PHY dedicated defaults 4 years ago
Pedro Alvarez 22a6dc305f Moved common variables and functions from the usim and pcsc_usim classes into usim_base class. 4 years ago
Francisco Paisana 4ebe92f6a3 refactor phy configuration in the rrc to keep track of activated scells, and cells configurations 4 years ago
Francisco Paisana d910c910a4 rrc::meas_cell now uses stack timers instead of system timers. 4 years ago
Francisco Paisana 023d32975a avoid use of pointers to meas_cells in ho_proc as they may become dangling 4 years ago
Francisco Paisana 072b7be582 renamed rrc::cell_t to rrc::meas_cell 4 years ago
Andre Puschmann 0ef8e1fdac rrc: include pci when logging serving cell measurement 
this should facilitate easier log parsing and plotting
if the cell measurements _always_ include the PCI, even
in the case of the serving cell

15:49:11.357447 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.52 dBm, cfo=+0.1 Hz
15:49:11.391610 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.52 dBm, cfo=-0.4 Hz
15:49:11.427325 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.52 dBm, cfo=-0.6 Hz
15:49:11.463101 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.52 dBm, cfo=-0.7 Hz
15:49:11.499817 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.51 dBm, cfo=+0.1 Hz
15:49:11.499828 [RRC ] [I] MEAS:  New measurement neighbour cell: earfcn=2850, pci=0, rsrp=-12.16 dBm, cfo=-0.8 Hz
15:49:11.535027 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.46 dBm, cfo=-0.8 Hz
15:49:11.571707 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.46 dBm, cfo=-0.9 Hz
15:49:11.607932 [RRC ] [I] MEAS:  New measurement serving cell: earfcn=0, pci=1, rsrp=-11.52 dBm, cfo=-0.8 Hz
 4 years ago
Pedro Alvarez 2f0125ef4e Fix issue recovering key state, when the first HO fails (specifically, is_first_ncc was not recovered). Minor improvements in key logging. 4 years ago
Francisco Paisana 1f2cca8909 in the rrc reconf procedure, handle the scenario where the rrc reconfiguration message does not config the phy 4 years ago
Francisco Paisana c6f4776a6f send the nassdus sooner in the rrc reconf procedure 4 years ago
Francisco Paisana fc49b5a030 implemented rrc reconfiguration procedure that includes a continuation when phy configuration is complete 4 years ago
Francisco Paisana b3eb9651d6 disable cqi in scells during handover procedure 4 years ago
Francisco Paisana 8a9a95a937 ensure sibs are acquired if cell selection calls cell search 4 years ago
Francisco Paisana 045f647914 fix edge case where serving cell is good enough for reestablishment but the sibs are not yet acquired 4 years ago
Francisco Paisana 5ecbe8fb17 cleanup of the reestablishment procedure state machine. It does not need to wait for the serving cell configuration because such procedure is already included in the cell selection procedure 4 years ago
Pedro Alvarez b3bfe336a9 Make sure that remote address test has a ip mask 4 years ago
Sylvain Munaut 5783c01cbb tf_packet_filter: Improve support for the different filter types 4 years ago
Francisco Paisana 0997daa7a0 now the handover procedure in the srsUE does not wait for the phy cell selection result. It only waits for the RA result 4 years ago
Pedro Alvarez 86f4d469c6 Added some functions to save and restore AS keys for the case of failed handover in the USIM 4 years ago
Francisco Paisana cf89d6645b add comments explaining each function of the reest procedure 4 years ago
Francisco Paisana d068d594af implemented rrc reestablishment procedure part after sending reest request 4 years ago
Francisco Paisana 73e21daeb2 refactor reestablishment procedure to more closely follow TS. 4 years ago
Andre Puschmann 1afc137032
[REBASE] Make PHY non-blocking and fefactor HO procedure (#1753) 
* Make PHY non-blocking and fefactor HO procedure

* makes entire PHY non-blocking through command interface
* adds dedicated queue for cell_search/cell_select commands
* refactor HO procedure to run faster, in one stack cycle. Looks closer to the specs
* force ue to always apply SIB2 configuration during reestablishment
* Run update_measurements in all workers

Co-authored-by: Ismael Gomez <ismagom@gmail.com>
 4 years ago
Francisco Paisana 7f8af023b8 added a callback that always gets triggered when the phy cell selection completes. This callback checks if cell selection failed, and if so, sets the rsrp of the selected cell to -infinity 4 years ago
Andre Puschmann b616944a13 ue,rrc: fix security config during HO/reestablishment 
we fix a number of very related issues for HO/reestablishment
in the success/error case:

* this patch removes the hard-coded check that intra-cell HO aren't
allowed. There are cases where eNBs use this method to update
the security context.

* the patch also fixes an issue after failed HO where the security context
of the source eNB should be used for the reestablishment.

* update security keys according to specs when mobilitycontrol
indicated change of key
 4 years ago
Andre Puschmann 6827c2df21 rrc_meas: disable layer3 filtering until quantity config is received 
the filter alpha was initialized to zero by default which causes an
issue because the first measurement for a cell can't be updated,
because the filtering function will always return the current value.

According to 36.331 Sec 5.5.3.2 Note 2, a k-value of 0 should turn
off filtering, which should be used as the default value until
an update is received from the network.
 4 years ago
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 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