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202 Commits (2328011732c6babc36d7da1df5c0921344d87010)

Author SHA1 Message Date
Pedro Alvarez d8f3878ce1
RLC failure to deliver notifications and discard timer limits to 1500ms (#2368) 
* Added interfaces for the RLC to notify the PDCP of failure to transmit
SDU

* Limit discard timer to 1500ms, to avoid issues of lingering SDUs in the undeliverd_sdus_queue.

* Fix bug in early exit of notify_delivery and notify_failure

* fix compilation issue in rlc-pdcp notification

Co-authored-by: Francisco <francisco.paisana@softwareradiosystems.com>
 4 years ago
Pedro Alvarez 6ecd6e273c Make sure that the status report is sent in RLF and PDCP reestablishment triggered by Handover 4 years ago
Xavier Arteaga 784a33583b SRSUE: Initial NR MAC-PHY interfaces 
SRSUE Fix compilation

SRSUE: temporary fixes LTE/NR PHY/Stack interface problem

fix

fix
 4 years ago
Pedro Alvarez b0fe302f8e Added interfaces so the upper layers can trigger the PDCP status report. Added ability to the UE to send Status Report aftre reestablishment. 4 years ago
Pedro Alvarez dd6d6f731d Passing SN provided by upper layers to PDCP entity. Using it to calculate TX_COUNT if passed. 4 years ago
Pedro Alvarez de90b4753f Added the ability of the RLC AM to notify the PDCP of the acknowledged 
PDCP PDUs. This includes:

- Modifying the byte_buffer_t to include PDCP SN meta-data. This way,
  the RLC can keep track of the ack'ed bytes for a specific PDCP PDU.
- Added in the RLC an `undelivered_sdu_info queue`, to keep track of the
  amount of ack'ed bytes and the total size of the PDCP PDU,
  so the RLC can know when delivery is finished.
- Added an interface between the PDCP and the RLC so that the RLC can
  notify the PDCP when it receives an ack from the status PDUs. The RLC
  passes to the PDCP a vector of all the ack'ed pdus in a rx'ed status PDU.
- Added some tests to the notify functionality. This includes some tests
  where the PDUs are acked imediatly, and one test where the PDU is
  retx'ed.
 4 years ago
David Rupprecht 3dab82c42f Added interface that allows to update the lcid in case of a nr reconfiguration 
nr rrc updates gw lcid if reconf was received
 4 years ago
Xavier Arteaga a2d9b436d9 SRSUE: add NR stack to PHY and initial decoded PDU push 4 years ago
Francisco 2befbd1825 setup of forwarding tunnels during enb s1 handover 4 years ago
Andre Puschmann 4709bacefd srsue: add DL NR-ARFCN param 
* add PHY param to set DL NR-ARFCN
* use new band_helper class to convert ARFCNs to supported bands
* signal supported NR bands in UE capabilities
 4 years ago
David Rupprecht 1b19ee40e7 Added usim features for key derivation 4 years ago
David Rupprecht 64299960bd Added procedure for NR reconfiguration and RRC with NR complete 4 years ago
David Rupprecht f7d313147a Added infrastrukture for measurements 
Init rrc_nr as part of the LTE stack
 4 years ago
David Rupprecht b79eef0860 Introducing nr_rrc <-> rrc interface for eutra and nr cap query 4 years ago
David Rupprecht 9eb0b72cb4 Added rrc function has_nr_dc 4 years ago
David Rupprecht 62b558fccf Move rat type to common header 
Removed phy measurement from rrc interface phy

Updated rrc interface for handling measurements
 4 years ago
Xavier Arteaga b501f2eeaf SRSENB/UE: Added NR workers 4 years ago
Xavier Arteaga ac930003be SRSUE: Integrated NR workers 4 years ago
Xavier Arteaga c6798653be SRSUE: created initial PHY LTE worker pool 4 years ago
Andre Puschmann 07d2bc4fe8 change license header to agnostic version with hint to root LICENSE file 4 years ago
Xavier Arteaga f64c268a69 SRSUE: Refactored MAC/RRC SCell Activation/Deactivation 4 years ago
Pedro Alvarez 454162cea7 Deleted nas_interface_stack. 4 years ago
Pedro Alvarez 604e79214d Changed NAS is_attached interface to is_registered. 4 years ago
Pedro Alvarez 14844a168a Created new class to hold all NAS states for the NAS state machine. Added EMM-DEREGISTERED substates and EMM-REGISTERED substates. 
Decoupled PLMN selection, attach request and service request. Removed RRC connect procedure from NAS.
 4 years ago
Andre Puschmann fab86382c1 mac,rrc: add interface to set SR config explicitly without touching any other MAC function 
when releasing PUCCH/SRS (see 5.3.13 in 36.331) we need to reset the SR config as well.
In our case, SR is handled by MAC so we need to (re-)configure MAC, not all of
MAC though, just SR.
 4 years ago
Ismael Gomez 76bfc78147
Fix issues with Sounding-RS (#1761) 
* Fix deadlock caused by update_measurements calling in_sync

* Fix overlapping SRS condition

* Do not use shortened PUSCH in transmissions and retx from RAR

* Revert "Fix deadlock caused by update_measurements calling in_sync"

This reverts commit f58c8c8c766f8f95baa3a3bf8287d8e25b2057ba.
 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
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
Ismael Gomez f49fbd6d02
Fix the order of HO/reest measurement actions (#1696) 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
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
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 27e5d98ef9 added vnf phy nr 5 years ago
Francisco Paisana 2da8c923b1 removed commented code and fixed interfaces 5 years ago
Francisco Paisana b4b5cd7cd6 added nr gnb and ue interfaces 5 years ago
Ismael Gomez 8c82203c74 Removed unused pregenerate option 5 years ago
Xavier Arteaga 58803d1b3e Added UL EARFCN map and UE PHY interface cleanup 5 years ago
Xavier Arteaga 89dcd6339f More LGTM fixes 5 years ago
Xavier Arteaga 77d5dedddc Fix LGTM warnings and recommendations 5 years ago
Francisco Paisana 28467d568d eliminated old way to schedule tasks using the heap 5 years ago
Xavier Arteaga 04c47e2b47 Added srsue argument for enabling EVM calculation 5 years ago
Andre Puschmann d35c9e2b89 nas: add support ot UE test loop mode B 
extend GW-NAS interface to signal test mode activation.
The method is a noop in the normal GW but is implemented in
the TTCN3 DUT according to TS 36.509 for Mode B
 5 years ago
Francisco Paisana a2ade9edd1 break down rrc_interface_types.h into multiple files. moved pdcp_config.h to same folder 5 years ago
Xavier Arteaga 25312e81b4 SRSUE: cell select RRC MEAS CFO is carried to PHY Cell object 5 years ago
Xavier Arteaga 6d355ab61e SRSUE: Fix HO initial CFO 5 years ago
Francisco Paisana 30ae2226c1 common interface for stack multiqueue tasks, background tasks and timers 5 years ago
Andre Puschmann 94c6034339 nas: rename start_attach_request to start_attach_proc 
this is to better differentiate from "send_attach_request" that
only packs and send the actual attach request message. The
entire attach procedure may include PLMN search, etc.
 5 years ago
Francisco Paisana e91a7ea513 removed stack-mac interface dedicated methods. We use now the task dispatch methods instead 5 years ago
Francisco Paisana de03c96c3b mac::process_pdus now uses the stack task dispatch interface 5 years ago