Commit Graph

124 Commits

Author SHA1 Message Date
Francisco Paisana 49e7b8e36e - Change periodicity of cell reselection after a new serving cell has been selected
- Enable PHY intra measurements during RRC_IDLE
2020-10-12 13:42:46 +01:00
Francisco Paisana 585d7c923a refactor and simplification of cell selection procedure. Using now a SIB3 threshold to decide whether to select neighbor cell while in RRC_IDLE 2020-10-12 13:42:46 +01:00
Xavier Arteaga 6ae47b6510 SRSUE: Deafult PUCCH/SRS does not imply full PHY dedicated defaults 2020-10-07 09:58:23 +02:00
Francisco Paisana 4ebe92f6a3 refactor phy configuration in the rrc to keep track of activated scells, and cells configurations 2020-10-02 18:50:29 +01:00
Francisco Paisana d910c910a4 rrc::meas_cell now uses stack timers instead of system timers. 2020-10-02 17:53:02 +01:00
Francisco Paisana 023d32975a avoid use of pointers to meas_cells in ho_proc as they may become dangling 2020-10-02 17:53:02 +01:00
Francisco Paisana 072b7be582 renamed rrc::cell_t to rrc::meas_cell 2020-10-02 17:53:02 +01:00
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
2020-10-01 20:15:41 +02:00
Francisco Paisana 1f2cca8909 in the rrc reconf procedure, handle the scenario where the rrc reconfiguration message does not config the phy 2020-10-01 11:25:21 +01:00
Francisco Paisana c6f4776a6f send the nassdus sooner in the rrc reconf procedure 2020-10-01 11:25:21 +01:00
Francisco Paisana fc49b5a030 implemented rrc reconfiguration procedure that includes a continuation when phy configuration is complete 2020-10-01 11:25:21 +01:00
Francisco Paisana b3eb9651d6 disable cqi in scells during handover procedure 2020-09-29 12:10:42 +01:00
Francisco Paisana 8a9a95a937 ensure sibs are acquired if cell selection calls cell search 2020-09-29 11:06:32 +01:00
Francisco Paisana 045f647914 fix edge case where serving cell is good enough for reestablishment but the sibs are not yet acquired 2020-09-28 23:45:13 +01:00
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 2020-09-28 18:39:28 +01:00
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 2020-09-25 13:03:50 +01:00
Francisco Paisana cf89d6645b add comments explaining each function of the reest procedure 2020-09-23 14:59:38 +01:00
Francisco Paisana d068d594af implemented rrc reestablishment procedure part after sending reest request 2020-09-23 14:59:38 +01:00
Francisco Paisana 73e21daeb2 refactor reestablishment procedure to more closely follow TS. 2020-09-23 14:59:38 +01:00
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>
2020-09-22 21:47:16 +02:00
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 2020-09-22 17:09:18 +01:00
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
2020-09-21 09:27:07 +02:00
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.
2020-09-21 09:27:07 +02:00
Ismael Gomez f49fbd6d02
Fix the order of HO/reest measurement actions (#1696) 2020-09-04 12:18:12 +02:00
Ismael Gomez 06a5bdaab2 Process all calls to RLF in the main RRC task 2020-09-01 11:03:02 +02:00
Francisco Paisana 92221eb780 update of rrc_interface_mac to remove signal from mac to rrc that RA failed in case of handover failure 2020-08-29 20:06:08 +01:00
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 2020-08-28 10:14:23 +01:00
Francisco Paisana 5242f9422b fix deadlock in handover 2020-08-27 13:43:18 +01:00
Francisco Paisana 834c0b3929 integrated new observer pattern into phy controller fsm 2020-08-24 22:10:32 +01:00
Francisco Paisana 48dd436d86 integrated observer pattern into rrc phy ctrl fsm 2020-08-24 22:10:32 +01:00
Francisco Paisana b1670c005b remove shadowed variables for reestablishment during handover 2020-08-24 17:48:50 +01:00
Francisco Paisana 8d10aa906e move defer_task to switch case in the rrc 2020-08-17 22:49:40 +01:00
Francisco Paisana 4fb8011a6d updated phy controller to use task scheduler 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
Francisco Paisana 5e06430455 removal of stack handler interface 2020-07-13 11:19:25 +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 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
Francisco Paisana d2dd30c8cb rrc_meas_test failing 2020-07-08 00:19:18 +01:00
Francisco Paisana 9a1f69113f created class for managing neighbor cells of rrc 2020-07-08 00:19:18 +01:00
Francisco Paisana 069dc1f751 moved cell struct of srsue::rrc to separate file 2020-07-08 00:19:18 +01:00
Francisco Paisana d12b037e0d make cell reselection periodic and with period of 20msec 2020-07-03 18:35:53 +01:00
Francisco Paisana c6f422d23e improved cell selection test in srsue::rrc 2020-07-03 14:00:14 +01:00
Francisco Paisana 3e016b8095 select serving cell during cell selection if it is stronger than neighbors 2020-07-03 10:26:49 +01:00
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.
2020-06-29 21:19:42 +02:00
Ismael Gomez 54b331c504
Adds best neighbour to CSV and stdout metrics (#1440) 2020-06-17 12:11:06 +02:00