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srsLTE
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1338 Commits

Author SHA1 Message Date
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 2020-12-12 15:59:27 +01:00
Francisco 920e15c1a5 fix logical channel pdu size computation 2020-12-12 15:59:27 +01:00
Ismael Gomez ae1092257f Fix issue in 15 PRB 2CA: Due to DCI format ambiguity, the scheduler needs to use Format1A instead of Format1. The number of PRB was incorrectly calculated when generating the grant, leading to corruptions in the MAC PDU. 2020-12-12 15:59:27 +01:00
Francisco 9eddfdb4a3 fix sched rand tester coderate check. tbs needs to be converted from bytes to bits 2020-12-12 15:59:27 +01:00
Francisco 0ae304a6ed update sched rand tester to detect when tbs coderate exceeds 0.93 2020-12-12 15:59:27 +01:00
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
 2020-12-12 15:59:27 +01:00
Francisco 2598989f7d replace msg3grant type from C-array to bounded vector 2020-12-12 15:59:27 +01:00
Francisco 22229adf08 fix: normal phr is only sent for PCell 2020-12-12 15:59:27 +01:00
Francisco 69748e9313 fix compilation issue regarding definition of size_t in header and declaration of static member null_value in sliding average class 2020-12-12 15:59:27 +01:00
Francisco d42dc50c44 Write TPC sched unit test and fix sched logical channel test 2020-12-12 15:59:27 +01:00
Francisco 8670558692 fix failing scheduler ca test 2020-12-12 15:59:27 +01:00
Francisco 479602ed1d add option to specify target ul sinr for UL power control to the enb rr.conf parser 2020-12-12 15:59:27 +01:00
Francisco 5865df39d1 created class that implements the scheduler transmit power control and PHR handling 2020-12-12 15:59:27 +01:00
Xavier Arteaga ebd87e63c0 Fix worker NR compilation 2020-12-12 15:59:26 +01:00
Xavier Arteaga f9643843a0 SRSENB/UE Fixed NR workers 2020-12-12 15:59:26 +01:00
Xavier Arteaga b501f2eeaf SRSENB/UE: Added NR workers 2020-12-12 15:59:26 +01:00
Xavier Arteaga a908fb6c5b Fix NR srsue/srsenb. Initial PHY NR in SRSENB. 2020-12-12 15:59:26 +01:00
Xavier Arteaga 85afdf8ce3 SRSENB: moved phy workers to lte worker pool 2020-12-12 15:59:26 +01:00
Francisco 2b59e90304 fix: limit number of encoded PHICH in the scheduler to the max size of the array 2020-12-12 15:59:26 +01:00
Francisco 2b97b2c8bb add bound checks for data, bc, and rar allocations in the scheduler to avoid array overflows. 2020-12-12 15:59:26 +01:00
Francisco d98d14efcc remove tti_params struct from sched testers, and use tti_point instead 2020-12-12 15:59:26 +01:00
Francisco 86ab1864f7 The struct tti_point is now used ubiquitously in the scheduler 2020-12-12 15:59:26 +01:00
Pedro Alvarez 49bcffcdf8 Fix issue packing TEID in Error indication. 2020-12-12 15:59:26 +01:00
Pedro Alvarez 235f373af7 Started to add ability to send error indication when G-PDU from invalid TEID is received. 2020-12-12 15:59:26 +01:00
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
 2020-12-12 15:59:26 +01:00
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
 2020-12-12 15:59:26 +01:00
Francisco 64ee0ac2ef New statistics were added in the random sched tester 
- new stats allow to analyze the average bitrates of each user
- there is a new stat that computes the total of RBs allocated and total bitrate achieved by the scheduler
 2020-12-12 15:59:26 +01:00
Francisco d7fae0b7a3 Implementation of time-domain PF scheduler 
- PF scheduling becomes the new default
 2020-12-12 15:59:26 +01:00
Andre Puschmann 07d2bc4fe8 change license header to agnostic version with hint to root LICENSE file 2020-12-12 15:59:25 +01:00
Francisco a5ef9f1eb9 potential fix for heap-overflow in scheduler, issue #2053. Added a bound check for the number RACH handled per tti. RACHs are ignored once the limit is surpassed. 2020-12-12 15:59:25 +01:00
Francisco 2fcb507de7 Fix gcc compilation errors with false_position_method in sched_ue.cc 2020-12-12 15:59:25 +01:00
Francisco 8d181ef41c Optimization of cc_sched_ue::cqi_to_tbs(...) method via the use of root-finding algorithm 2020-12-12 15:59:25 +01:00
Francisco 94efeab672 Optimization of sched_ue methods to derive required number of prbs to allocate to a rnti 
This optimization has been achieved by:
- implementation of "false position method" root-finding algorithm
- application of the false position method in cc_sched_ue::get_required_prb_dl/ul(...)

The number of iterations in the worst case scenario, reduced from 100 to 5 with
the proposed algorithm.
 2020-12-12 15:59:25 +01:00
Francisco f07e52129c increase mcs ul upper bound to 24 when ue is cat4 and enb supports 64qam. Simplified max_mcs computation 2020-12-12 15:59:25 +01:00
Francisco 3d80ff4831 fix activation of PDCCH for adaptive retxs. 2020-12-12 15:59:25 +01:00
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. 2020-12-12 15:59:25 +01:00
Andre Puschmann 1ecfb88e46 txrx: fix double white space 2020-12-12 15:59:25 +01:00
Andre Puschmann 43220e42d6 enb: print cell bandwidth when initializing them carrier 
this allows to quickly check the cell bandwidth
 2020-12-12 15:59:25 +01:00
Francisco 7a74bf28d1 forward declare s1ap types in enb interfaces 2020-12-12 15:59:25 +01:00
Francisco 95cc6238a5 compilation time reduction - avoid including enb_stack_lte.h in main.cc and include enb_stack_base instead 2020-12-12 15:59:25 +01:00
Francisco 66712023bb remove unneeded includes of full rrc asn1 lib 2020-12-12 15:59:25 +01:00
Francisco 3067e81e67 fix check of pending UL bytes 2020-12-12 15:59:25 +01:00
Francisco bb96625129 renaming lch_manager -> lch_ue_manager 2020-12-12 15:59:25 +01:00
Francisco a348508072 simplified sched_ue pending DL bytes calculation API 2020-12-12 15:59:25 +01:00
Francisco 0ffea62411 Wrote logging functions for SCHED MAC CE/LCID allocations 2020-12-12 15:59:25 +01:00
Francisco c1fb161004 Move sched lch_manager to separate file 2020-12-12 15:59:25 +01:00
Francisco eae0dc93ad rename scheduler files. scheduler -> sched 2020-12-12 15:59:25 +01:00
Francisco 4350e8ff70 fix calculation of number of users during the phy metrics acquisition 2020-12-12 15:59:25 +01:00
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. 2020-12-12 15:59:25 +01:00
Ismael Gomez ce20cc4c54 Add missing current_tx_nb which was causing all in uplink to fail 2020-12-12 15:58:34 +01:00