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732 Commits (a300a47673d7d74dfda07f32331c32fc0d9ae365)

Author SHA1 Message Date
Xavier Arteaga 6f5614a0cc Suggested modifications on gNb MAC/PHY interface 4 years ago
Xavier Arteaga 8378c85ec4 Refactored gNb PHY 4 years ago
Xavier Arteaga d49734b1bc SRSENB: Refactor to accomodate 5G NR 4 years ago
Francisco de05e1e549 sched,nr: fix invalid memory write 4 years ago
Francisco 75153c7c83 sched,nr: implementation of sched sim test class 4 years ago
Francisco f1b3cfc764 sched,nr: implementation of sched NR harq retxs. Refactor of rb grid classes. 4 years ago
Francisco d950433cbd sched,nr: fix time-domain parallelization sched nr test. creation of util class to handle acquisition of boolean resources 4 years ago
Francisco 35a236b1b9 sched,nr: fix sched_nr_test. Resolve data race issues. Created new config structs used across the scheduler. 4 years ago
Francisco 407da794e1 sched,nr: implementation of slot grid class 4 years ago
Francisco 4fa27f3841 sched,nr: implementation of main classes for NR scheduler, and basic test for concurrency 4 years ago
Andre Puschmann 483a216bd5 ue,stack: refactor handling of radio bearears in UE stack 
this is a rather large commit that is hard to split because
it touches quite a few components.

It's a preparation patch for adding NR split bearers in the next
step.

We realized that managing RLC and PDCP bearers for both NR and LTE
in the same entity doesn't work. This is because we use the LCID
as a key for all accesses. With NR dual connectivity however we
can have the same LCID active at the same time for both LTE and NR
carriers.

The patch solves that by creating a dedicated NR instance for RLC/PDCP
in the stack. But then the question arises for UL traffic on, e.g. LCID 4
what PDCP instance the GW should use for pushing SDUs. It doesnt' know
that. And in fact it doesn't need to. It just needs to know EPS
bearer IDs. So the next change was to remove the knowledge of what
LCIDs are from the GW. Make is agnostic and only work on EPS bearer IDs.

The handling and mapping between EPS bearer IDs and LCIDs for LTE
or NR (mainly PDCP for pushing data) is done in the Stack because
it has access to both.

The NAS also has a EPS bearer map but only knows about default and
dedicated bearers. It doesn't know on which logical channels they
are transmitted.
 4 years ago
David Rupprecht ec19919246 Fix NGAP valgrind test 4 years ago
Francisco 78acf81cf0 bugfix,sched: avoid instability in TPCs around PHR~0 4 years ago
Ismael Gomez 02ec4dd3d0 Remove unused variable 4 years ago
Ismael Gomez dd9889e07c Add carrier index to uplink PCAP captures 4 years ago
Bedran Karakoc c280ac5ad6 Introducing extended NGAP functionality 
Remove unused logger for now in ngap::ue to pass tests
 4 years ago
Francisco 5a82a63bb5 bugfix,srsenb: fix intraenb handover softbuffer allocation during handover 4 years ago
Francisco d5234b5f65 sched,bugfix: avoid using UL SNR average in tpc control loop 4 years ago
Francisco f55e1c5a73 fix,srsenb: start stack before the radio to avoid stack methods to be called when stack is not fully initialized 4 years ago
Francisco e8983b88f0 refactor: use enb_cc_idx instead of ue_cc_idx in mac::ue 4 years ago
Pedro Alvarez 299d2ee35d Added interface to make the PDCP notify the RRC of integrity check 
failures.
 4 years ago
Francisco fd3901e4a2 bugfix,srsenb,rrc: delete old context right away after sending Reestablishment msg. 
Following ReestablishmentRequests should use the most recent rnti as old context.
 4 years ago
Andre Puschmann f65faba756 sched_harq: fix uninitialized values in HARQ 
detected with Valgrind memcheck
 4 years ago
Francisco 35cea3d104 enb,optimization: consider mac::ue object in rnti pool memory block size 4 years ago
Francisco 7e77da6a15 mac,optimization: use rnti memory pool to create mac::ue objects 4 years ago
Francisco fd1d73666c bugfix,srsenb,mac: avoid sanity check for UL PDU length if CRC=KO 4 years ago
Francisco 76004a3054 enb,mac,refactor: mac::ue now uses byte_buffer_pool for UL PDUs 4 years ago
Francisco 9e2a7d4592 bugfix,tpc: only cap PUSCH TPC when PHR is negative. I also extended TPC unit test 4 years ago
Francisco bdc4362475 bugfix,tpc: place a cap on TPC due to PHR only when TPC is positive 4 years ago
Francisco 7badfb1c88 bugfix: avoid multiple TPC=0 for a single PHR<0 4 years ago
Francisco e2c37ad513 bugfix: missing early return in TPC derivation 4 years ago
Andre Puschmann c0be8187c8 rlc interface: convert entire read_pdu() interface to return uint32_t 
we had it returning int but had a bug in using the return value properly,
i.e. handling when -1 was returned in RLC TM.

Thinking about it more, it doesn't make sense to have a negative return
value here anyway. Either the RLC can return a PDU or not. If it can't the
returned lenght is zero.
 4 years ago
Andre Puschmann aaffdeb326 rrc,rlc: add method to signal protocol failure to RRC 
general-purpose method for lower layers to signal protocol
failures to higher layers, i.e. RRC.

In the current case, implement a direct release of the UE (enb) or
a reestablishment (UE).
 4 years ago
Francisco ceaef3523f sched,feature: Enable setting the target PHR below which the maximum UL grant size starts decreasing 4 years ago
Francisco 486823e5de sched,bugfix: The PHR handling scheme now considers the number of PRBs of the UL grant that carried the PHR. Before, it was assuming the most conservative scenario of Nprb=1 4 years ago
Francisco f7aef3ffc1 sched,bugfix: fix nof_retx update when UL HARQs are resumed 4 years ago
Francisco 89406b07d6 make eNB UL SNR initial value an exponential average alpha configurable 4 years ago
Francisco 3f75538660 rrc,feature: Use t301 to set time that the enb waits for the UE RRCConnectionSetupComplete or ReestablishmentComplete 4 years ago
Francisco 0349949cce bugfix, handover: disable inactivity timer during s1 handover in target enb 4 years ago
Pedro Alvarez 18e2149d68 Sending Initial Context Setup Response after RRC reconfiguration. 4 years ago
Francisco 2cdda3b6db sched,enhancement: allow PUSCH allocations when PHICH falls in measurement Gap by resuming UL HARQ 4 years ago
Francisco 200006c4b7 bugfix,scheduler: avoid offset to increase decrease unboundedly when mcs is equal to 0 or max_mcs 4 years ago
Francisco a587d20252 allow specification of subset of valid measurement gap offsets in rr.conf 4 years ago
Francisco 52247a46e5 rrc,refactor - change log level for paging try lock 4 years ago
Francisco 692bd193d5 rrc,improvements - use single subframe-indexed struct to access pending PCCH. The scheduler now doesnt lock checking for pending paging 4 years ago
Francisco 957ca453e9 bugfix,rrc: change mechanism to delete old paging messages to avoid deleting messages not yet sent 4 years ago
Francisco 7076dbfef8 feature, scheduler: Add configuration parameter to set minimum TTI interval between TPCs 4 years ago
Francisco 4627ae9802 bugfix, scheduler: effectively disable adaptive mcs when target bler is unspecified 4 years ago
Francisco dedd9c09a7 feature, scheduler: Add abitility to set minimum aggregation level in PDCCH, and disable adaptive aggregation level based on target BLER 4 years ago
Francisco c5029fc266 feature - implement adaptive link adaptation in DL and UL 4 years ago
Francisco 8811b7c9a7 fix handling of CRNTI CE in the RRC. The scheduler should not allocate more grants for the new rnti after this point. 4 years ago
Andre Puschmann fbb151af2d enb,rrc: fix bearer re-activation after max KO 
this patch makes sure that if RBs have been deactivated after
max KO on either the DL or the UL, they are reactivated if either
of them is working again.

UL/DL are always activated together, even if just one of them
recovers. The KO counter (or timer), however, is not stopped implicitly.
 4 years ago
Francisco a17e3b71e7 set minimum snr under which the UL SNR estimate is not updated 4 years ago
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