The new configuration section '[extnas]' allows to disable the
built-in NAS implementation, and provide the interface (UNIX
domain socket) to an external entity. The interface itself will
be implemented in the follow up commits.
Unfortunately, the existing networking API (common/network_utils.h)
lacks the UNIX domain socket support, and it turned to be easier
to implement a simple, single client server using Boost.Asio.
The server runs in its own thread with a blocking Tx queue, and
calls a user definted callback on receipt of any data from client.
Multiple client connections are not supported and will be rejected.
This is the first step towards the goal of having an external NAS
interface. The new 'nas_base' class becomes a parent of 'nas',
combining all interfaces and the basic (common) API.
The 'ue_stack_lte' now holds a unique_ptr of type 'srsue::nas_base',
so the underlying NAS implementation (built-in or external) can
be choosen at run-time depending on configuration.
The implementation specific configuration now needs to be passed
to the constructor instead, not to the init() method as was before.
* 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>
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
- move handling to NAS
- use switch off to enable airplane mode (don't wait for EPC response)
- add tiny FSM to control airplane mode activation/deactivation
- only start on/off counter after state has been entered
rrc_meas refactor. Need to split commit
Fix typo
Temporal commit
Apply rx_gain_offset to neighbour cell measurements
srsLTE: modify TESTASSERT Macro to follow codeline
SRSUE: prevent RRC from having serving cell in neighbour list
SRSUE: DL HARQ does not need Time Aligment Timer. UL is disabled using PUCCH resources release
SRSUE: extend intra-frequency to CA SCell
SRSUE: fix confusing/ambiguous code in the RRC measurements and fix concurrency issue
SRSUE: remove RRC measurement report triggers when measurements are modified or HO succesful
SRSUE: fix compilation issues and Reest SIB indexes
Fixes sync using incorrect cell configuration when search cell does not find a correct cell
Small refactor to remove measurement report triggers always after removing measurement
SRSUE: Removed SIC PSS from UE
SRSUE: fix inter-frequency reestablishment and added more traces
SRSUE: Fix compilation issue
the main issue was the plmn_selected variable. the solution
was to create a function to enter the deregistered state that resets the variable
and performs all other actions that need to be performed, like clearing
EPS bearers.
The patch also extends the SS to support AT commands to enable/disable
data services and now succesfully passes TC_9_2_2_1_7
Vadim Yanitskiy
Daniel Willmann