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929 Commits (1180d0f24db5129fedac0275b4fcfeb7afa291de)

Author SHA1 Message Date
Francisco 8df6ed07c6 sched small fixes - use 0.930 instead of 0.932 for max coderate. Allow computing mcs/tbs based on max coderate directly. Other small fixes 4 years ago
Francisco 41bc7e4810 avoid letting repeated s1ap::user_release calls to deem the user as in zombie state. Use timer instead to auto-remove user from s1ap if no response from mme arrives 4 years ago
Francisco f705735093 optimization - only allow some multiqueue queues to notify the multiqueue consumer of the arrival of tasks 4 years ago
yagoda f90f6f0c7e adding MAC 0 padding support 4 years ago
Francisco 0a1ae0e4ad redesign and fix enb rrc message logs 4 years ago
Francisco 22f1f2d56c move ngap files into their own folders 4 years ago
Francisco 1488606156 refactor - create s1ap dedicated folder 4 years ago
Francisco 0e0835a805 move scheduler rbg/prb/cce mask and interval types and associated helper functions to a separate file 4 years ago
Andre Puschmann 167200f5cd rrc_bearer_cfg: replace fixed E-RAB to DRB mapping 
also make sure we don't assign LCIDs beyond the possible
number.

possible fix for https://github.com/srsran/srsRAN/issues/658

Co-authored-by: herlesupreeth <herlesupreeth@gmail.com>
Co-authored-by: Francisco <francisco.paisana@softwareradiosystems.com>
 4 years ago
Francisco 4d3ff0d139 implementation of basic search for optimal rbgmask for subband CQI 4 years ago
Francisco f8b6eae2bf use of min DL cqi across all PRBS to compute required DL PRBs 4 years ago
Francisco 8564996eaf fix sched_dl_cqi method to compute cqi-optimal rbgmask 4 years ago
Francisco 485c6ee129 subband CQI feature - add K parameter in sched_interface::ue_cfg_t and update it from RRC 4 years ago
Francisco 84ad6dd8ee Integrated new sched_dl_cqi class in sched_ue_cell 
- extend sched_dl_cqi interface to allow getting tti when cqi was last updated
- extend sched_dl_cqi to quickly get average cqi across the whole bandwidth
 4 years ago
Francisco 16d05ff042 Remove time exponential averaging of DL cqi 
- renaming: sched_cqi -> sched_dl_cqi
- testing: add unit test for sched_dl_cqi wideband cqi mode.
- feature: remove time exponential averaging of dl cqi
 4 years ago
Francisco 28c24a89ef sched subband cqi - create method to get cqi-optimal RBG mask 4 years ago
Francisco eeb8ad6571 sched,feature - creation of sched_cqi class to manage the update of CQI in a subband CQI setting 4 years ago
Francisco f25dbea4de fix PCCH assembly in srsenb rrc 4 years ago
Francisco 32228389a9 fix latest static analysis warnings in rrc paging 4 years ago
Francisco bfdb0332db remove undefined methods from rrc_ue 4 years ago
Francisco 46cfdaf9e5 Handle case when old rnti gets removed during RRC reestablishment 
This is achieved via:
- keep restarting the inactivity timer whenever a ReestablishmentRequest is received
- in case the RRC ReestablishmentComplete is very late and the old rnti was removed anyway,
  abort RRC reestablishment procedure and release new rnti
 4 years ago
Andre Puschmann b61be7878a enb,rrc: split RLF counter and timer handling for DL/UL/RLC 
this patch splits the counter and timer handling for PHY DL, PHY UL,
and RLC errors and makes sure that, for example, a successful DL
does not cancel the UL RLF timer, and vice versa.

They all use the same timeout value which is user-configurable.
 4 years ago
David Rupprecht f9c0009d23 Remove setup erabs function 4 years ago
Francisco 0d800eb8f6 stack, multiqueue - bugfix for multiqueue destruction, and addition of unit test 4 years ago
Francisco b54bb35343 use rnti_map_t in scheduler 4 years ago
Francisco 6b84754ede fix rrc and gtpu bearer rnti update during reestablishment. The rnti of UE's rrc_bearer_handler was not being updated 4 years ago
Francisco 1677abce8d create typedef for circular map of rntis. check return of gtpu ue creation 4 years ago
Francisco 9464f36714 make eNB UE release timer after RLF detection configurable 4 years ago
Francisco c6b9c12ba2 gtpu, feature - added the ability to configure gtpu indirect tunnel timeout value. This parameter is useful in the case that the end marker is not received 4 years ago
Francisco b619a2b649 application of new cache allocator to deques in scheduler 4 years ago
David Rupprecht c117b563c9 Initial commit for ngap in enb 4 years ago
Francisco 04ded030ea srsenb,bugfix - avoid logging error message when UE sends CRNTI MAC CE for old rnti whose context has already been erased. 4 years ago
Francisco f7016633d2 sched, fix - avoid tpc commands when target pusch and pucch snr are not specified 4 years ago
Francisco d3c51fdad4 limit minimum UL grant size to accommodate both BSR and RLC headers 4 years ago
Francisco cde61a5796 rrc paging - reduce the space taken by paging manager class 
Paging messages can only be transmitted in a subset of subframes - {0, 4, 5, 9}
I avoid now creating objects for the subframes that are not part of this subset
 4 years ago
Francisco b014cbfe0f rrc paging - removal of redundant mutexes in paging manager class. Now mutexes are indexed by subframe index instead of paging buffer index 4 years ago
Francisco 8487c10956 removal of unused variables 4 years ago
Francisco 01eace2631 rrc paging mechanism improvements 
- moved paging record handling to separate class
- parallel access to pending pcch messages by phy workers based on TTI and without common lock
- asn1 pcch message packing now takes place in stack thread, to avoid real-time issues
 4 years ago
Andre Puschmann 598594c51a all: bunch of pass by const& changes suggested by LGTM 4 years ago
Francisco Paisana d39183419c
Separate TPC PUSCH and PUCCH target SINR (#2740) 
* separate target pusch and pucch sinr configurations in tpc class and rr.conf
 4 years ago
Francisco 86dac9c823 several coverity high and medium impact fixes 4 years ago
AlaiaL d88760f099 Fixes coverity 366620 4 years ago
AlaiaL beaa1b3e24 Fixes coverity 369569 4 years ago
faluco 69726bc939 Remove two allocs in the prio queues in sched_time_pf. 4 years ago
faluco 7df308c756 Remove two mallocs in the stack: 
1) Extend the small buffer to 64bytes for the move_callback class.
2) Replace a std::map for a fixed size circular map in sched_time_pf.
 4 years ago
David Rupprecht 81ad72b0ff Refactor srb and drb handling 4 years ago
Ismael Gomez 77b11b82ac
Release UE if no activity in DRB (#2658) 
* Count user activity with DRB only and SRBs for initial procedures. Add counter to release user after max KO in UL.
 4 years ago
Francisco 14d32db92f implement Handover direct forwarding path availability configuration feature 4 years ago
Francisco b8fa1d1b61 fix rrc mobility test 4 years ago
Francisco 66988ffd32 s1ap - simplified erab setup procedure. Handle correctly the failure to setup causes 4 years ago
Francisco f401683960 s1ap - simplified erab modify procedure 4 years ago
Francisco 76978f0d14 s1ap - simplified erab release procedure 4 years ago
Francisco c5fc543516 s1ap - handling of ts1 reloc overall timer. 4 years ago
Francisco c2a99a8112 handover - support for handover cancellation causes, check for E-RAB QoS requirements, cancellation of handover if E-RABs are not supported in the target eNB 4 years ago
Francisco 6d401bc79f handover - check if UE integrity and encryption algorithms are supported in the target eNB, and report handover failure if not. 4 years ago
Francisco 77bd500312 handover - implement and test S1 Handover fail path for the case of invalid QoS config in HO Request message 4 years ago
Francisco d2c404b166 handover - setup s1ap cause in case of handover failure at the target enb 4 years ago
Francisco 49bd895e29 s1ap - handle invalid or repeated erab ids in s1ap erab release command 4 years ago
Francisco 7842e3bff3 s1ap - add unit test to check correct handling of invalid E-RAB ids in modification request. Fix s1ap in order for the test to pass 4 years ago
Francisco 985846e3bd s1ap - set multiple erab ids cause in replay when s1ap erab modify request has repeated ids. 4 years ago
Francisco 685c971dc2 fix recursive call to get rb name 4 years ago
Francisco 21718af3b6 avoid allocating std::string to get lcid radio bearer name. Refactored the lte radio bearer enum type 4 years ago
Francisco 344bdf3165 allocation of UE rlc and pdcp classes in the ue dedicated memory pool 4 years ago
Francisco 60d5c6df7b implementation of memory pool with individual memory blocks per UE that get accessed via their rnti 4 years ago
Francisco bb9601c13b gtpu - fix gptu manager members destruction order 4 years ago
Francisco b7d4a72ea1 adt - fix circular map clear() and erase(it) functions 4 years ago
Andre Puschmann 7459a65a8e enb,rrc_ue: remove unused variable 4 years ago
Francisco cdf72248f3 Reimplement batch-based background object/memory pool 
Main changes:
- addition of pool utilities
- The node size/alignment and batch allocation threshold are now runtime arguments
- object pool and memory pool are not anymore based on the same class.
  The object pool cannot use intrusive free list because it would overwrite the object
  memory
 4 years ago
Francisco fbeb87c53e remove unused parameters from mac::ue 4 years ago
Francisco b004c2024d integration of object pool in mac::ue for allocation of softbuffers. Definition of common object pool interface class 4 years ago
Francisco ec3cd9ffea adt - added background object pool test, and fix existing bugs related to the creation of pools with objects that are too small to be used in free lists 4 years ago
Francisco d1c5b000dc adt - creation of pre-initialized object pool, that leverages the background memory pool allocator 4 years ago
Francisco 046633674a refactor - removal of stack-gtpu interface, and use of socket manager interface instead 4 years ago
Francisco c24e382c19 Refactor of socket manager class 
- use of inheritance to simplify testing
- removal of global network manager
- pass of custon socket manager to s1ap and gtpu ctors
- overhauled the registration of socket fd,callback in socket manager
 4 years ago
Francisco 4aac7ac238 use global rx multisocket handler, and remove stack-s1ap interface 4 years ago
Francisco 39de2efa69 multisocket handler - use blocking socket remove method 4 years ago
Francisco bf96d897ee network utils refactor - renaming of socket handle to unique socket and cleanup of its methods 4 years ago
Francisco 8fda69a3dd refactor mac::ue cc_used_buffers_map class to use new circular_map container 4 years ago
Pedro Alvarez e1a852d4b8 Split split RLF timer and Inactivity timer 4 years ago
Pedro Alvarez 47135cb75b Changed counting of KOs to RRC 4 years ago
Pedro Alvarez 8194b5ec73 Added check for consequetive KOs in MAC. Change set_activity_user to pass activity and max KOs to RRC and trigger RLF timeout. 4 years ago
Francisco ec72b310d7 fix mme ue s1ap id initialization 4 years ago
Francisco 23ae9967cf replaced present+value for optional field in s1ap mme_ue_s1ap_id context field 4 years ago
Francisco c3482b45e1 s1ap - handle erroneous enb/mme s1ap ue id in received s1ap messages from the MME 4 years ago
Francisco cc369aca1f sched - handle the case when the CRC is missing and max retx is reached 4 years ago
faluco 54fab314c0 Enhance RRC eNB events: 
- Implement a common event "log_rrc" for all RRC events and discriminate by procedure using an enum.
- Log events for connection, reestablishment, reconfig, reject and release.
- Log the corresponding ASN1 message used by each procedure.
- Redefine the JSON object for this event to match the new structure.

Fixed a compilation error detected by the static analyzer in gcc9.3 where bounded_vector::data() was using taking the address of the internal buffer which confused it, prefer to use the data method of std::array.
 4 years ago
Pedro Alvarez 8c7aed1f81 Added handling of MSG3 timout exipiry in activity_timer_expired(). Avoid notifying S1AP in that case. 4 years ago
Pedro Alvarez 37699f2215 Send radio connection with UE lost if max retx are reached 4 years ago
Francisco d04a19f8bc refactor - increase code reuse in adt files 4 years ago
Francisco 5eccfad05b gtpu - added comments, updated expected construct, handled in rrc the case a gtpu teid fails to allocate 4 years ago
Francisco 82b34f3b3f gtpu refactor - fix gtpu logging formatting 4 years ago
Francisco 44440cf562 gtpu refactor - use of raii to automatic path switch and teid removal in forwarding. Clean up of gtpu_tunnel_manager methods. 4 years ago
Francisco ab2bd9a2d2 gtpu refactor - handle dl path state activation internally in gtpu tunnel manager class 4 years ago
Francisco cfd24f6a0e gtpu - leverage byte_buffer_pool to store buffered sdus in gtpu 4 years ago
Francisco bdc5094e17 gtpu - added unit test for gtpu_tunnel_manager class 4 years ago
Francisco c201eb7708 use of more space efficient sorted vector structure for lcid tunnels of a rnti 4 years ago
Francisco eba0edea4a creation of static id obj pool class. Application of this class to gtpu tunnels container to avoid allocations 4 years ago
Francisco 3cf5e85b20 create separate class to handle gtpu tunnel creation/deletion/search 4 years ago
Francisco 099a533573 bugfix - verify that TEID exists before trying to access it 4 years ago
Francisco e1523692c2 implementation of concurrent fixed size pool that leverages thread local caches to avoid mutexing 4 years ago
Andre Puschmann 1a0891df51 all: check return value of make_byte_buffer() and handle them safely 4 years ago
Francisco 4869b14de3 application of new circular map to mac::ue_db 4 years ago
Codebot 4523ee6087 rename srsLTE to srsRAN 4 years ago
Ismael Gomez 8d2197e751 Increase MAC UE circular buffer 4 years ago
Francisco 2054ad3f3c eliminate old BFS-based PDCCH allocator. Improvement the scheduler speed by ~2x 4 years ago
Francisco 6bec92fbc9 using new DFS-based PDCCH allocator as a default 4 years ago
Francisco 8347cabe4f implemented a DFS-based PDCCH allocator 4 years ago
Francisco a540c56552 gtpu bugfix - avoid erasing indirect tunnel and causing iterator invalidation while iterating list of tunnels 4 years ago
Francisco 977c194cbc gtpu,bugfix - handle the case when gtpu fails to allocate buffer for end marker. Also, added a timer that when expired, it autoremoves the GTPU handover tunnel 4 years ago
Francisco fb48f4484c sched refactor - removal or cleanup of unused sched methods 4 years ago
Francisco 137a21d6b2 sched refactor - use simple enum to represent allocation result. Refactored logging messages when allocation fails. 4 years ago
Francisco c0a90c5aa8 refactored sf result resetting to avoid realloc of memory 4 years ago
Francisco 1f35c4dc8b sched, feature enhancement, bugfix - allow RAR DL grants with variable PRB size 
Some bug fixes had to be solved:
- the cfi cannot be dynamic once we set a SIB/paging/RAR allocation. This is too avoid effective coderate to exceed its maximum
- the previous bugfix required adding the feature to cancel the last PDCCH+PDSCH allocation
 4 years ago
Francisco 47f1175502 [sched, feature enhancement] - allow variable nof prbs allocated per SIB / Paging message 4 years ago
Francisco 76103065f7 collapse the 2-stage DCI generation process of SIB/Paging/RAR into one single stage in the scheduler. 4 years ago
Francisco 3a4ae3d69d extended broadcast+RAR DCI encoding scheduler tests 4 years ago
Francisco 9601770196 rrc,bugfix - stop scheduling when RLC AM max_retx is achieved 4 years ago
Francisco 16b5e1fd4d fix collision detection of n1pucch for the ACK and SR in the scheduler 4 years ago
Francisco 6feb311e17 remove instantiations of move-constructors and move assignment operators from cc_buffer_handler 4 years ago
Francisco ca7fe1349e remove unnecessary sfinae from bounded_vector. Use bounded_vector for UE cc buffers. Set ue cc used buffers remove_pdu method to private 4 years ago
Francisco d27e0be609 created special class to manage mac::ue currently allocated rx UL buffers. This class avoids mallocs 4 years ago
Francisco 6159cb3817 add assert to ensure a valid ptr is passed to memory pool deallocator 4 years ago
Francisco 20928651c7 created batch allocator that leverages background worker pool 4 years ago
Francisco 3e9f93eb8a refactor - remove old log_filter and logmap libraries from the codebase 4 years ago
Francisco 770021e364 remove uneeded formatting and std::string creation/allocation in scheduler 4 years ago
Francisco fbbbf7886c sched,bugfix - reset harq used for msg3 correctly 4 years ago
Francisco d1483dc0f8 sched,bugfix - fix bitmask formatting. fix msg3 adaptive retx pdcch allocation 4 years ago
Francisco 837c5bdce5 clang tidy update. applied small fixes to warnings from clang-tidy 4 years ago
Andre Puschmann 20cbc48f90 rlc_am_lte: refactor PDCP/RLC interface to use fix sized data structure 
this patch replaces the std::vector type used in the interface between
PDCP and RLC to signal delivery status between both layers. The new
data type is a configurable but fixed-size vector.
The RLC AM doesn't need to dynamically allocate the vector for every SN but
uses the tx_window for storage.
 4 years ago
Francisco 20e341d0a1 mac,bugfix - fixed formatting of MAC and scheduler user-defined types 4 years ago
Francisco 5a1bf28fe1 optimization - minimization of number of std::string allocations for logging 4 years ago
Francisco d77b6e1d9c sched,optimization,refactor - use of custom formatter that avoids mallocs for getting bitmasks strings in hex and binary formats 4 years ago
Francisco f0ed1e06a8 documentation,bugfix - added documentation to new blocking queues, changed class names, and removed blocking pushes from the critical path 4 years ago
Francisco d1236fd62f stack,optimization - replaced previous block_queue design for new bounded queue in several places in the enb 4 years ago
Francisco b869b0d8e2 sched,bugfix&refactor: set dci_format before generating the remaining dci parameters in sched_ue::generate_dl_dci_format(...) 4 years ago
Francisco 77ac69796d sched,bug: change tbs/mcs derivation functions to forbid the use of alt cqi table for DCI format1A 4 years ago
Francisco 34e39a9835 Implementation of scheduler algorithm to avoid PUCCH collisions 
- The cch_allocator considers the existence of a fixed PUCCH region dedicated to CQI, SR, and HARQ ACKs
- At the moment PUCCH multiplexing is not considered
- The PUCCH width was increased to accommodate possible PUCCH-ACK positions
 4 years ago
Francisco 8ae8b31ba2 Allow collisions between PUCCH and Msg3 for 6 PRBs 
- The UL Harq now stores the type of UL alloc (msg3 or data)
 4 years ago
Francisco 7dcfe7bf0e sched: updated tbs calculation test. Fix edge cases that failed the test. 4 years ago
Francisco ed8ab3871c re-designed algorithm to compute lowest mcs that meets cqi,req_bytes,nof_prbs requirements in the scheduler 4 years ago
Francisco 9748c0be84 simplified tbs/mcs computation in scheduler 4 years ago
David Rupprecht aef6805d03 Added pcap net feature to eNodeB 4 years ago
Francisco c03dbc6742 fix RRC Connection Reestablishment procedure - correctly save old rnti bearer configuration in new rnti 4 years ago
Francisco 290f39d805 fix crnti mac ce handling in the rrc in normal (no handover) case 4 years ago
Francisco 023cb0fdde log on allocation failure in mac::ue class 4 years ago
Francisco beed2ddbaa simplified tx softbuffer acquisition interface in mac::ue 4 years ago
Francisco e0da736a5f fix memory management of softbuffers in mac::ue class 4 years ago
Francisco 02539344fb move rx used buffers of mac::ue to separate cc buffer handler class 4 years ago
Francisco cc6c9ffc51 move tx/rx softbuffers of mac::ue to separate cc buffer handler class 4 years ago
Francisco 2f95862932 move tx payload buffers of mac::ue to separate cc buffer handler class 4 years ago
Francisco 9eb46cc134 fixed clang tidy warnings in mac::ue.cc 4 years ago
Xavier Arteaga 1e55d68b55 Removed set RNTI from API 4 years ago
Francisco 4b09507c19 remove srslte.h includes from upper layers 4 years ago
Francisco b8bd869d0f move ue rlc interfaces to separate interfaces header file 4 years ago
Francisco a988351f46 move ue pdcp interfaces to separate interfaces header file 4 years ago
Francisco ea04104e8e move ue gw interfaces to separate interfaces header file 4 years ago
faluco 2328011732 - Remove old loggers in ttcn3 and in NR. 4 years ago
Andre Puschmann 46d8ed8742 enb,rrc: delay UE release after RLC maxRetx 
this fixes the eNB behaviour when RLC signals maxRetx reached.
By directly releasing the UE, we ignore the fact that the UE
could still have the reestablishment counters running, so
could attempt a reestablishment, which would result in a reject
because we would have destroyed the UE context too early.

this patch delays the removal of the UE to wait at least
until the reestablishment timers are expired.
 4 years ago
Pedro Alvarez 976b5c12c1
Releasing the UE when max retransmissions are reached in the RLC. (#2385) 4 years ago
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
Francisco 6404722b4b convert qci_cfg in srsenb to std::map to allow qci values above 10 4 years ago
Francisco 9a9ed01dda rename pdcch_sched to sf_cch_allocator 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
faluco a940e169a3 Add the enb_cc_idx value to S1 events. 4 years ago
faluco a4605883f0 Implement second revision of the events and metrics document. 4 years ago
Pedro Alvarez cfd94441a5 Added metrics to srsenb PDCP 4 years ago
Francisco 9546634b37 use unique_ptr for sched_ue database in scheduler. This will minimize the time spent locking while adding new users 4 years ago
Francisco c1adaec038 refactored cce position table structs 4 years ago
Francisco 823da24a8e removed uneeded sched method to set sched algorithm, and made configured flag atomic 4 years ago
Francisco 6b3cf6c597 moved pdcch sched to separate file 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
Francisco a4423ff690 sched: fix compilation issue for gcc4.8 4 years ago
Francisco a7f4dfab2c sched: added checks for localized RBG assignment in case of DCI format1A 4 years ago
Francisco Paisana 34d4dc3974 set DCI format 1A while RRC setup/reestablishment/reconfiguration is on-going 4 years ago
Francisco Paisana c40ad81a90 cleanup s1ap methods. remove hard coded erab list in s1ap handover required message. 4 years ago
Francisco 23459dee28 Created enb_{rlc/pdcp/gtpu/phy_interfaces.h files. 4 years ago
Francisco 43e57df00b breaking enb_interfaces.h into multiple files on a layer basis. Created enb_rrc_interfaces.h, enb_mac_interfaces.h and enb_s1ap_interfaces.h 4 years ago
faluco 6359a2d948 - Upgrade the gtpu class in lib dir to srslog. 
- Propagate old log elimination through all the dependencies of gtpu.
 4 years ago
Francisco 3265d940ec remove byte buffer pool cached member variables as they are unnecessary now. 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
Francisco c4a50b7de0 avoid loss of pdcp sdus' SNs buffered in gtpu during handover 4 years ago
Francisco 9e25e95545 fix S1AP UE Capability Indication message. Created helper to log received S1AP messages 4 years ago
Francisco 78d1b8083a fix GTPU tunneling. Avoid forwarding packets to PDCP while the PDCP bearer is not yet created 4 years ago
Andre Puschmann 8e13f04684 mac_pcap: refactor MAC PCAP and include NR RAT into same object 
after adding the thread-safe PCAP writer functionality to the EUTRA
MAC object it became clear that we don't wont to replicate the
same for the NR object.

This patch therefore refactors the class that now supports both EUTRA and
NR rats. The old mac_nr_pcap.[h/cc] has been deleted. All test-cases
and usages now use the new object that needs to pass the RAT type in
the ctor.

this patch addresses the last open point of #2160
 4 years ago
faluco 79eca0980d - Ported fsm.h to srslog. 
- Adapted and removed old loggers in tests and code that used fsm.h
 4 years ago
faluco 96c07a69c0 Report the RLF event to the JSON event file in the enb. 4 years ago
Francisco ec14a6e50b verify correctness of input to gtpu::write_pdu 4 years ago
Francisco 411946c752 Improvements on GTPU message logging 
- Avoid multiple lines per each SDU Rx or Tx
- log info relative to source and destination of each SDU
- log info relative to whether the Rx SDU has been forwarded into a tunnel
- log info relative to whether the Rx SDUs are being buffered.
 4 years ago
Francisco 2bde28252c send UE capability indication through S1AP 4 years ago
Francisco d64ce7df77 implementation of S1 E-RAB Release Indication and Error Indication messages 4 years ago
faluco ac62e3c398 Fix the priority of logging levels in places where we before logging we check if a certain log level is enabled. 4 years ago
herlesupreeth 47fff7226a Send NAS PDU in E-RAB Release Command and issue RRCConnectionReconfiguration to UE 
This commit addresses the following points

- If a NAS-PDU IE is contained in the E-RAB RELEASE COMMAND message, the eNB shall pass it to the UE.
- Issue RRCConnectionReconfiguration for the DRB to be removed
- Cleaning of DRB in RLC and GTP-U
- Fix for Malformed E-RAB Setup Response upon reaching max. DRBs
 4 years ago
Andre Puschmann da9e3363f1 mac_pdu_nr: rename MAC PDU class for NR to adhere naming conventions 
* mainly to have _nr as trailing name for filename and class
* also add "sch" to class and filename (RAR PDU will have extra class)
 4 years ago
Francisco 2befbd1825 setup of forwarding tunnels during enb s1 handover 4 years ago
Francisco 56ec2c286e add gtpu test for tunneling 4 years ago
Francisco 13649e4e19 Implement new GTPU functionality: 
- multiple tunnels per E-RAB
- data forwarding between connected GTPU tunnels
- forwarding GTPU End Marker between connected tunnels
- TeNB GTPU handles in-sequence delivery when multiple tunnels for the same ERAB exist.
 4 years ago
faluco 711438f756
Port enb specific classes to use srslog (#2155) 
* - Started porting the enb PHY layer to use srslog loggers.
- Updated srslog to manage the none level.

* Finished porting enb phy layer including the NR part.

* Ported MAC, GTPU, PDCP, RLC and S1AP enb classes to use srslog.

* Use new stack logger.

* Ported the enb RRC clases to use srslog.

* Remove unused log macros.

* Replace loggers in sched, sched_carrier, sched_helpers.

* Replaced loggers in sched grid.

* Replaced loggers in sched harq.

* Replaced loggers in sched ue.

* Replaced loggers in sched ue ctrl.

* Replace loggers in sched ue ctrl TPC.

* Replaced loggers in sched subclasses.

* Replaced loggers in rrc_meascfg_test

* Configure loggers in rrc_mobility_test.

* Fix compilation errors left out after the rebase.

* - Implement a custom log sink that will serve as a test spy to intercept and count the number of error and warning log entries.
- Adapt the erab_test_setup and rrc_mobility tests to use this new class and make them pass again.

* - Remove trailing new lines introduced in the rebase.
- Ported the sched_ue_cell class to srslog.

* Remove unused log member.

* Ported mac tests to srslog.

* - Removed remaining trailing newlines from log entries.

* Fix compiler errors detected in CI.

* Fix another static variable without definition passed to log lines.

* Fixed a bug in srslog::flush that would never end when the backend queue is full.

* Fetch the RRC logger instead of injecting it in the constructor.
 4 years ago
yagoda 1420c23863 adding RAR buffers for multiple carriers, previously RARs into different carriers in the same TTI would overwrite each other 4 years ago
Francisco 26086252ba fix resetting of harqs in the scheduler during intra-enb handover 4 years ago
Ismael Gomez fed4e0ad82
Protect access to ul buffers (#2227) 
* Protect access to ul buffers

* Fix interval calculation when removing old buffers
 4 years ago
Francisco a24091edf8 fix handover regression. The new pcell was not being correctly reactivated 4 years ago
Francisco 4ed87babff extend sched_ue_cell interface 4 years ago
Francisco 3d7a83cb6e delete cc_sched_ue class 4 years ago
Francisco Paisana c1ff03bd1a moved uci feedback and state variables from cc_sched_ue to sched_ue_cell class 4 years ago
Francisco Paisana dadee757a1 moved harq entity and tpc to sched_ue_cell 4 years ago
Francisco Paisana 3892194d98 sched refactor, use enb_cc_idx rather than ue_cc_idx primarily to avoid uneeded conversions 4 years ago
Ismael Gomez 47dbd6ed70
Merge pull request #2214 from softwareradiosystems/pr_mac_buffers 
Limit the number of UL buffers in MAC and deallocate old ones
 4 years ago
Ismael Gomez 44e411be2b Track UL buffers per TTI instead of per PID and remove old ones periodically 4 years ago
Ismael Gomez a6423442c2
Refactor NR RA files and fix header includes all over library (#2162) 
* Refactor NR resource allocation classes. Use DCI instead of grant for dummy PDSCH UE/eNB test

* Minor refactors in NR workers and ue_dl

* Fix include issues

* fix compilation issues
 4 years ago
Ismael Gomez d5f0634975
Add PUCCH SNR measurement (#2175) 
* Add PUCCH SNR measurement

* Fix PUCCH SNR estimation

* Reverted PUCCH noise estimation

* use fpclassify instead of iszero

Co-authored-by: Xavier Arteaga <xavier@softwareradiosystems.com>
 4 years ago
Ismael Gomez c1c5fa426c Fix issue with new way of managing ul buffers not working with CA 4 years ago
Ismael Gomez e413086576 Limit the number of UL buffers in MAC and deallocate old ones 4 years ago
Francisco Paisana 5391001c46 remove unused variable 4 years ago
Francisco Paisana d4242f2db7 precompute nof_re_table[sf][prb][slot][cfi] for faster nof_re computation and for more accurate lower bound nof_re computation 4 years ago
Francisco Paisana d0a17b0a40 created sched_ue_cell class that is indexed based on enb_cc_idx 4 years ago
Francisco Paisana 8b306c81e2 refactor tbs/mcs computation in sched 4 years ago
Francisco Paisana 32c47d4fac change sched warning when it fails to fit srb0 data in grant to info 4 years ago
Francisco Paisana 1dd211c91c fix log initialization in sched_helpers.cc 4 years ago
Francisco Paisana afef5188a6 move sched_harq to subfolder 4 years ago
Francisco Paisana 233e604cfe cleanup sched_ue, moving some unrelated functions to sched_helpers 4 years ago
Francisco Paisana 9c7c190074 when the rrc fails to allocate the ue cell resources, it should erase the ue from all stack layers 4 years ago
Francisco Paisana 0d9ff3ecc7 fixed RBG<->PRB conversion. Changed PHICH logging to be single line 4 years ago
Francisco Paisana 0761a8f08b Add RLF-Report handling functions to srsENB 4 years ago
Francisco Paisana 434bdfca68 decoupled srsenb rrc ue mac controller from the rrc::ue class 4 years ago
Francisco Paisana f8b7351e1b implementation of object memory pool via class-specific operator new/delete 4 years ago
Francisco Paisana 8912a8ce6c added extra comments to memory pool code. generalized object pool to mutexed and non-mutexed cases 4 years ago
Francisco Paisana a73cbcdc9d added mem_pool for growing object pools. Applied the mem pool to the rrc::ue creation 4 years ago
Francisco Paisana bc8e65c82f bug fix in the PF scheduler. The correct history was not being stored for newtxs 4 years ago
Francisco Paisana 02d4dde1f5 issue 2170 fix: add extra check that UL harq is empty before allocating it 4 years ago
Francisco Paisana ea8ad153c4 add configurable fairness parameter to pf scheduler 4 years ago
Francisco Paisana 2abe486e18 separate control loops for PUCCH and PUSCH TPC 4 years ago
Andre Puschmann 732a108982 mac: convert rar_pdu_msg[] from vector into array and protect access 
attempt to address ASAN detected issue:

RACH:  tti=821, cc=3, preamble=11, offset=0, temp_crnti=0x47
ASAN:DEADLYSIGNAL
=================================================================
m==25385==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000024 (pc 0x564b19a26c93 bp 0x7fa0e5f1a8c0 sp 0x7fa0e5f1a798 T8)
==25385==The signal is caused by a WRITE memory access.
==25385==Hint: address points to the zero page.

------DL--------------------------------UL------------------------------------
rnti cqi  ri mcs brate   ok  nok  (%)  snr  phr mcs brate   ok  nok  (%)   bsr
  46 0.10   0 0.0     0    0    0   0%    0  0.0   0     0    0    0   0%   0.0
  47 0.10   0 0.0     0    0    0   0%    0  0.0   0     0    0    0   0%   0.0
    #0 0x564b19a26c92 in srslte::rar_subh::set_ta_cmd(unsigned int) /mnt/data/jenkins/workspace/srslte_ogt_manual_zmq/srsLTE/lib/src/mac/pdu.cc:1136
    #1 0x564b19577f7e in srsenb::mac::assemble_rar(srsenb::sched_interface::dl_sched_rar_grant_t*, unsigned int, int, unsigned int, unsigned int) /mnt/data/jenkins/workspace/srslte_ogt_manual_zmq/srsLTE/srsenb/src/stack/mac/mac.cc:837
    #2 0x564b19591765 in srsenb::mac::get_dl_sched(unsigned int, std::vector<srsenb::mac_interface_phy_lte::dl_sched_t, std::allocator<srsenb::mac_interface_phy_lte::dl_sched_t> >&) /mnt/data/jenkins/workspace/srslte_ogt_manual_zmq/srsLTE/srsenb/src/stack/mac/mac.cc:653
    #3 0x564b19497ee2 in srsenb::lte::sf_worker::work_imp() /mnt/data/jenkins/workspace/srslte_ogt_manual_zmq/srsLTE/srsenb/src/phy/lte/sf_worker.cc:208
    #4 0x564b199f8db4 in
 4 years ago
Francisco Paisana 9de318c7e6 avoid allocating DL harqs when respective acks are still pending, when there is a reordering of ttis in the phy 4 years ago
faluco 92b11c1adb Backport misc changes from the fapi repo. 4 years ago
Pedro Alvarez 0c20b7a455 Added support for S1AP modify bearer request support. This includes: 
- Handle received E-RAB S1AP at s1ap.cc.
 - Added methods to rrc.cc, rrc_ue.cc and rrc_bearer_cfg.cc to handle erab modify request.
 - Made RLC add_bearer() function capable of re-creating the RLC entity.
 - Send RRC reconfiguration to the UE and reply to the EPC with S1AP
   modify bearer response.

This commit also adds support to srsEPC to send S1AP modify bearer request for
testing purposes.
 4 years ago
Francisco Paisana 099dad8cb1 disable PHR handling in the UL sched by default 4 years ago
Ismael Gomez f9a02299f9 Use MAC PDU pointer instead of tti_rx and rnti as a key to associate buffers. Decouple crc_info() and push_pdu() functions. This allows for different timing architectures in the PHY 4 years ago
Francisco Paisana 82eb31f70f add rlc metrics to enb 4 years ago
faluco 343587b32d Update NR classes after metrics interface changes. 4 years ago
faluco f20b75a05f Re-structure enb metrics a bit. Create a generic mac metric struct and per ue mac metrics struct. 4 years ago
faluco 5529943172 Add a per sector rach preable counter for the metrics. 4 years ago
Francisco 43e0a3209d fill enb rrc metrics with drb info 4 years ago
faluco dcd1157d39 - Prototype the extension of enb metrics. 4 years ago
Pedro Alvarez 7eebd71627 Added S1AP E-RAB release command/response handling to srsENB. 
Added the ability to srsEPC to send the E-RAB release command.
 4 years ago
Francisco cba0cc457f sched rand test refactor: creation of abstract sched simulator class for testing 4 years ago
David Rupprecht 848496bb0f Moved get_earfcn to srslte get_carrier_freq func 4 years ago
Francisco b4861bc59a move sched params and sched helper methods to sched_helpers.h/cc files. Removed place in the scheduler where the mcs is increased forcefully to avoid segmentation 4 years ago
Francisco 99f94d9a1a Bug fixes of srseNB scheduler TPC 
- fix encoding of TPC command
- use of exponential average with irregular sampling for the ULSNR average estimate.
  Turns out using a time-windowed average for the SNR was a bad idea.
  If the UL grants are very sporadic, the SNR time window will never have samples
  when a TPC is encoded
- update of TPC sched test
- other fixes in accumulators lib
 4 years ago
Francisco 22229adf08 fix: normal phr is only sent for PCell 4 years ago
Francisco 69748e9313 fix compilation issue regarding definition of size_t in header and declaration of static member null_value in sliding average class 4 years ago
Francisco d42dc50c44 Write TPC sched unit test and fix sched logical channel test 4 years ago
Francisco 479602ed1d add option to specify target ul sinr for UL power control to the enb rr.conf parser 4 years ago
Francisco 5865df39d1 created class that implements the scheduler transmit power control and PHR handling 4 years ago
Xavier Arteaga b501f2eeaf SRSENB/UE: Added NR workers 4 years ago
Francisco 86ab1864f7 The struct tti_point is now used ubiquitously in the scheduler 4 years ago
Pedro Alvarez 235f373af7 Started to add ability to send error indication when G-PDU from invalid TEID is received. 4 years ago
Francisco 8fb3ea6922 Added the ability to choose scheduling policy from enb.conf 
- The two options provided at the moment are time-domain RR and PF
 4 years ago
Francisco b71e8075f4 Refactoring of scheduling algorithms 
- Use single interface for both DL and UL
- Wrote helper functions for tasks that are common to different algorithms
- created subfolder for all scheduling algorithms
 4 years ago
Francisco d7fae0b7a3 Implementation of time-domain PF scheduler 
- PF scheduling becomes the new default
 4 years ago
Andre Puschmann 07d2bc4fe8 change license header to agnostic version with hint to root LICENSE file 4 years ago
Francisco f07e52129c increase mcs ul upper bound to 24 when ue is cat4 and enb supports 64qam. Simplified max_mcs computation 4 years ago
Francisco 3d80ff4831 fix activation of PDCCH for adaptive retxs. 4 years ago
Francisco fc81a5c6ba harq ack state can now only be NACK or ACK. The ul_harq pending phich flag is now reset after phich scheduling. Thus, the existence of a crc_info(...) signal from the PHY is not required. 4 years ago
Francisco 7a74bf28d1 forward declare s1ap types in enb interfaces 4 years ago
Francisco 66712023bb remove unneeded includes of full rrc asn1 lib 4 years ago
Francisco 3067e81e67 fix check of pending UL bytes 4 years ago
Francisco bb96625129 renaming lch_manager -> lch_ue_manager 4 years ago
Francisco a348508072 simplified sched_ue pending DL bytes calculation API 4 years ago
Francisco 0ffea62411 Wrote logging functions for SCHED MAC CE/LCID allocations 4 years ago
Francisco c1fb161004 Move sched lch_manager to separate file 4 years ago
Francisco eae0dc93ad rename scheduler files. scheduler -> sched 4 years ago
Francisco 68eda336bd remove ENB_METRICS_MAX_USERS compile time macro and use run-time variable to set maximum number of UEs the srseNB can have connected at a given instant. 4 years ago
Francisco 324cb80cac rename cell_info_common->enb_cell_common and cell_ctxt_dedicated->ue_cell_ded 4 years ago
yagoda bdc1964335 consolidating RRC eMBMS configuration into single function, setting some parameters to const 4 years ago
yagoda b90574975b refactoring asn1 eMBMS code, removing asn1 from PHY and MAC in eNodeB 4 years ago
Francisco 92c1c2a182 more efficient measObjToAddModList reconfiguration by ensuring consistency in EARFCN ordering 4 years ago
Francisco 68d463b08f remove var_meas_cfg_t class 4 years ago
Francisco 25bfb6d84d move rrc measconfig handling functions to separate file. Update measconfig tests 4 years ago
Francisco 1cb65f07f1 enable meas gaps in RRC and enb parser 4 years ago
Francisco Paisana 49a48c0130 add measgap awareness to scheduler metric and sf_sched. Add measGap test to random sched test suite. 4 years ago
Francisco Paisana 9579931f16 added meas gap checks to scheduler ue 4 years ago
Francisco Paisana bf7c587e4f add UL 64QAM support to eNB RRC and scheduler 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
Francisco Paisana d5f6ccc0c4 integrated UL UE-dedicated sched tests in random test 4 years ago
Francisco Paisana 88105c1577 change the namespace of tti point helper functions for the eNB 4 years ago
Francisco Paisana 3ea47b645a changed the way the number of UL pending bytes is calculated in the scheduler 4 years ago
Francisco Paisana d8203acd56 implement harq resuming functionality 4 years ago
Francisco Paisana 510959b50f update nr asn1 files, and asn1 tests 4 years ago
Francisco Paisana f927ccaf55 fix pusch grant allocation for cqi reporting in CA. 4 years ago
Francisco Paisana a351b2534e allow PUSCH grants for CQI in PCell 4 years ago
Francisco Paisana a865858db3 disable srbs UL during handover to avoid UL grants and scheduling requests before the handover is complete 4 years ago
Francisco Paisana 42cdc5e340 Allocate all the leftover bytes of the TBS to last allocated MAC SDU. 
Fix the way the RLC header is accounted for depending on the bearer id.
For instance, the SRB0 does not require any RLC header.
 4 years ago
Francisco Paisana 55d62a2baa fix rlc buffer updating inside the scheduler to account for RLC headers 4 years ago
Francisco Paisana 980278fdec add comments regarding radio resource asn1 setting in the eNB 4 years ago
Francisco Paisana b40a5a958e use common function to fill rrc reconf message in handover 4 years ago
Francisco Paisana 836e7d7ede refactor scell addition in the srsenb::rrc to follow the same style of other rrc recfg fields 4 years ago
Francisco Paisana a8e11d7991 removal of the special case for rrc reconf update 4 years ago
Francisco Paisana f26b5ccde7 fix drb reestablishment during handover 4 years ago
Francisco Paisana 7bf196a6e0 removal of srb handling from srsenb::rrc::bearer_cfg_handler 4 years ago
Francisco Paisana 2ef1e286b2 fix set of rrc reconf message radio resource cfg fields 4 years ago
Francisco Paisana 890113fd32 now the rrc enb is using a common function for rr_cfg reconf for the first reconf message 4 years ago
Francisco Paisana ce78fa82ce now the rrc enb is using a common function for rr_cfg setup/reest 4 years ago
Francisco Paisana 97f2e4336e refactor of functions for filling the asn1 radio resource config structs. This functions are used during rrc setup/reest/reconf 4 years ago
Francisco Paisana 44a9ad76f1 avoid sched_ue dangling pointer 
With the sched feature that allows scheduling in TTIs
ahead of time, there is no guarantee that when
the tti arrives to generate a sched result, the stored
raw sched_ue pointers are still valid. For this reason,
I now store the rnti and check if the rnti still exists.
 4 years ago
Francisco Paisana 852c31c0bc log warnings when the sched ue cfg is not valid 4 years ago
Francisco Paisana 1ce928ab2e use of current / future ue sched config structs in the srsenb::rrc::ue::mac_controller as an approach to deal with the multi-step mac reconfiguration of the UE 4 years ago
Francisco Paisana 1e6d902873 cleanup of srsenb::rrc::ue::mac_controller api 4 years ago
Francisco Paisana f1bdf33d10 addition of cells provided in cell_meas_list of rr.conf to cellsToAddModList in the rrc reconfiguration message 4 years ago
Francisco Paisana c5c7700cb7 implemented DL logical channel prioritization test for finite PBRs 4 years ago
Francisco Paisana 9b10acff06 implemented logical channel prioritization in DL scheduler 4 years ago
Francisco Paisana b7ed8b1858 - added react method to to_state<...> transitions 
- s1 handover composite state simplified
- the eNB now starts a HO cancellation when it receives an invalid
Handover Command
- the FSM log now prints the current state when it receives an unhandled
event
 4 years ago
Francisco Paisana a761762ec8 extended cc_sched_ue fsm to account for more harmonious transition of an scell to deactivated state 4 years ago
Francisco Paisana 74c18ecf6c implementation of SCell Deactivation 4 years ago
Francisco Paisana eafc003671 Altered the way the generation of the scheduling decision for a given 
TTI is made. Instead of generating one CC in each dl_sched()/ul_sched()
call, all CC decisions are generated at once. This avoids race
conditions with calls from the RRC to the MAC to configure UEs.
 4 years ago
Francisco Paisana c46402c836 fix phy configuration during handover on srsenb. The function srsenb::rrc::ue::fill_scell_to_addmod_list assumes that the phy_cfg of the PCell is up-to-date, which was not the case. With this PR, the srsenb rrc updates the phy_cfg before the ho cmd is sent, but, in the case of intra-enb ho, the updates are not submitted to the phy before the reception of the crnti mac ce 4 years ago
Francisco Paisana 0f51d70aac fix measObj addition in srsenb. Now the enb considers both scells and meas_cells in the rr.conf 4 years ago
Francisco Paisana d42cdca729 fix scell activation in the phy during intra-enb handover. 4 years ago
Francisco Paisana 688dda30a4 favour carriers with best channel conditions for UL grants due to SRs 4 years ago
Francisco Paisana 137e554eb3 reestablish pdcp bearers is required in case of AM bearers 4 years ago
Francisco Paisana 4c88404801 fix measurement report handling in case of intra enb handover 4 years ago
Francisco Paisana 942c28881d converted member method of list of cells in the enb to a free function 4 years ago
Francisco Paisana 3a924a1d80 avoid sending cellsToAddModList if cell offsets are zero 4 years ago
Francisco Paisana da70c0fdaf fix cellsToAddModList handling. Now the eNB always adds PCell+SCells as measObjects in the RRC Reconfiguration messages. It may also further include cellsToAddModList if they are provided in the rr.conf file 4 years ago
Francisco Paisana 141960fbda remove unnecessary shared_ptrs and use value semantics instead for the var_meas_cfg of the different enb cells 4 years ago
Francisco Paisana 7e6487b6fa perform PUCCH+PRACH PRB reservation right at the start of a new TTI in the scheduler 4 years ago
Ismael Gomez 59b6301cc8 Remove legacy arbritrary 1s timeout for eNB requests 4 years ago
Ismael Gomez 38e2ffe414 Use Format1A when using CA and 15 PRB due to DCI size ambiguity 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 13caf287f9 fix S1 Handover with UE CA. The HandoverPreparation message was not being filled correctly 4 years ago
Ismael Gomez a4835dd2c8
More accurate MCS reduction when PUSCH carries UCI (#1630) 4 years ago
Francisco Paisana cc469fc7a3 fix reestablishment after S1 handover by setting ncc accordingly 4 years ago
Francisco Paisana 0036941af4 added extra state to S1 target enb mobility FSM. Accounts for out-of-order arrival of MMEStatusTransfer. Also, now we avoid creating DRBs before the MMEStatusTransfer 4 years ago
Francisco Paisana bb5dd92dca implemented s1 handover cancellation procedure to force the target enb to release the ue ctxt 4 years ago
Francisco Paisana 8c9e596f89 refactored s1ap handover request interface. cleaned up rrc tenb s1 handover code 4 years ago
Francisco Paisana 7cd4f45d62 fsm refactor. 
- avoid triggering directly a subfsm
- improved metafunctions
- other cleanups
 4 years ago
Francisco Paisana 5d1343fe75 implemented S1 bearer status transfer 4 years ago
Francisco Paisana db8af399f8 extended rrc tenb s1 handover test. implemented layer reconfig during s1 handover 4 years ago
Francisco Paisana 7605c7df23 added s1ap handover notification, fixed s1ap asn1 bug, and fixed bad fields for admitted erabs in ho req ack 4 years ago
Francisco Paisana 20b69fb22e substitution of ul_alloc_t for prb_interval 4 years ago
Francisco Paisana 26f46ea067 add S1 Handover Request handling in target eNB 4 years ago
Francisco Paisana caf862c99f moved expected, bounded_bitset, move_callback to adt folder. created a test for bitset 4 years ago
Ismael Gomez 382811e10e
Update S1AP RNTI context when doing Reestablishment (#1582) 4 years ago
Francisco Paisana 35fa5346b9 only reduce mcs if the current tti requires uci 5 years ago
Francisco Paisana 58c4bcf288 reduce mcs for UL grants carrying UCI 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 039977aeb5 renamed interfaces 5 years ago
Francisco Paisana 1a9c04bf2f use of task scheduler handle in pdcp 5 years ago
Francisco Paisana e9f34c7613 using task scheduler in enb stack 5 years ago