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6860 Commits

Author SHA1 Message Date
Xavier Arteaga 959f37ae81 SRSUE: Renamed PHY scell_state to cell_state 2020-12-12 15:58:33 +01:00
Xavier Arteaga 008ef3c10c Fixed override methods in MAC test 2020-12-12 15:58:33 +01:00
Xavier Arteaga 4b8cd7ce92 SRSUE: protect scell state 2020-12-12 15:58:33 +01:00
Xavier Arteaga 036026be04 SRSENB: CSI reports on active SCells only 2020-12-12 15:58:33 +01:00
Xavier Arteaga c5cb4d9984 SRSUE: Added time accurate SCell activation 2020-12-12 15:58:33 +01:00
Xavier Arteaga f64c268a69 SRSUE: Refactored MAC/RRC SCell Activation/Deactivation 2020-12-12 15:58:33 +01:00
Andre Puschmann ff5f215df9 rf_soapy: print warning when using the Lime with shorter sample rates 
the Lime has better performance when using the default LTE sample
rates due to filterering being done in the LMS RF chip.

Print a warning when using the Lime with the non-default LTE rates.
 2020-12-12 15:58:33 +01:00
Andre Puschmann 2c797fce1a phy_common: add method to check whether we use default LTE symbol size 
helpful getter to check whether we've compiled in
or selected at run time to use default LTE sample rates
 2020-12-12 15:58:33 +01:00
Andre Puschmann 35373d1385 enb,ue: add cmdline arg to enable usage of default LTE sample rate 
some RF boards might have issues with the sharp filters that are needed
for the reduced sample rate operation that we use by default.

This switch allows to use the default LTE sampling rates and
configure this at run-time, not compile time.
 2020-12-12 15:58:33 +01:00
Xavier Arteaga a6ac80cfbf Initial NR DL DCI Packing/Unpacking 2020-12-12 15:58:33 +01:00
Francisco Paisana fdec451a9d disable mcs>20 if eNB supports UL 64QAM but UE doesn't 2020-12-12 15:58:33 +01:00
Francisco Paisana bc00abeeb8 fix phy configuration of UL 64QAM 2020-12-12 15:58:33 +01:00
Francisco Paisana b369d6d5d5 consider enb sib config when activating UL 64QAM 2020-12-12 15:58:33 +01:00
Francisco Paisana bf7c587e4f add UL 64QAM support to eNB RRC and scheduler 2020-12-12 15:58:33 +01:00
Andre Puschmann 5f7f818abb pdu: fix bug in BSR table lookup 
the bug causes the BSR to return a bsr_idx of 0, i.e. no data
pending, when the buff_size was reported to be 1 B only.

Instead, the UE should return BSR idx 1, i.e. between 0 < BSR <= 10.
 2020-12-12 15:58:33 +01:00
Andre Puschmann e227fec3d8 pdu_test: add rigerous test for LBSR content 
* make sure upper and lower edges of Table 6.1.3.1-1 in 36.321 are correct
* fix existing BSR test vectors (verified with Wireshark)
 2020-12-12 15:58:33 +01:00
Andre Puschmann cd1ca4d095 mac_test: add LBSR test 
the test checks the correct packing of an LBSR when a SDU couldn't
be added before. This happended because RLC couldn't provide a new PDU.
 2020-12-12 15:58:33 +01:00
Andre Puschmann 286844b3dd mac_pdu: reset subheader state when deleting from PDU 
when packing MAC PDUs, adding a new SDU might fail, for example
because RLC couldn't provide a new PDU. The muxer then needs
to delete the subheader from the PDU again.

When adding a padding BSR at the end, the same subheader is again
used to store the BSR, so any state in that subheader should be removed.

In the particular case, this was causing an issue when logging a LBSR
because the LCG buffer states are printed using the payload buffer,
which was still pointing to some memory that was used when trying
to add the new RLC PDU in the beginning.
 2020-12-12 15:58:33 +01:00
Andre Puschmann 035d989737 pdu: fix unpacking of LCG2 of LBSR MAC CE 
LBSR packing is fine but this makes the eNB do wrong things
because it thinkgs LCG2 has no or too much data to send.

LCG2 is our default LCG for DRB1. One occasion we saw the issue
is doing full rate TCP DL which requires quite a bit of ACK traffic
back to the sender. With the BSR for LCG2 being wrong, providing
UL grants was delayed and so the TCP DL throuhgput was very low.

In the log below we see that the buff_size[2]=1 so there is data to send.
Interestingly, the packing was correct so Wireshark displays it correctly.
But the unpacking not, as can be seen in the MAC log below which reports
0 buffer state for all LCGs

22:08:54.804792 [MAC ] [I] [ 5084] pdu_get: sdu_len=1212, channel.sched_len=1213, bsr.buff_size[2]=1
22:08:54.804840 [MAC ] [I] [ 5084] UL LCID=3 len=1212 LBSR: b=0 0 0 0
 2020-12-12 15:58:33 +01:00
Xavier Arteaga cf55eb4c4f Improved comments 2020-12-12 15:58:33 +01:00
Xavier Arteaga e8f94c40b8 Added LDPC codeblock segmentation 2020-12-12 15:58:33 +01:00
Xavier Arteaga fc3d154fe3 Fix compilation 2020-12-12 15:58:33 +01:00
Xavier Arteaga 736e6db616 Initial resource allocation for NR 2020-12-12 15:58:33 +01:00
Xavier Arteaga 0439161de6 Removed modulation enum from LDPC RM 2020-12-12 15:58:33 +01:00
David Rupprecht a8074fe39d Fixed TTCN UE for starting a service request in rrc_idle 2020-12-12 15:58:33 +01:00
Pedro Alvarez 454162cea7 Deleted nas_interface_stack. 2020-12-12 15:58:33 +01:00
Pedro Alvarez 38822873e8 Stop T3402 2020-12-12 15:58:33 +01:00
Pedro Alvarez 604e79214d Changed NAS is_attached interface to is_registered. 2020-12-12 15:58:33 +01:00
Pedro Alvarez 5649ecaab0 Renamed nas_common.h to nas_config.h. Moved emm_state_t into nas_emm_state.h and nas_emm_state.cc. 2020-12-12 15:58:33 +01:00
Pedro Alvarez 96f39da5d7 Fixes for airplane simulator. 2020-12-12 15:58:33 +01:00
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.
 2020-12-12 15:58:33 +01:00
Francisco Paisana ff7811c822 remove unused member variable from sched tester 2020-12-12 15:58:33 +01:00
Francisco Paisana 3407ac6741 fix ca sched test 2020-12-12 15:58:33 +01:00
Francisco Paisana e8ac98d06f added extra tbs and dci aggregation level checks to sched test suite 2020-12-12 15:58:33 +01:00
Francisco Paisana 5467ee9f83 moved more tests to ue-dedicated test suite 2020-12-12 15:58:33 +01:00
Francisco Paisana 992ea7fd29 moved UE-dedicated RA sched test to separate test suite file. 2020-12-12 15:58:33 +01:00
Francisco Paisana d5f6ccc0c4 integrated UL UE-dedicated sched tests in random test 2020-12-12 15:58:33 +01:00
Francisco Paisana eb327183d3 moved harq tests from scheduler_test_common.cc to separate test suite file. Created a class ue_sim, whose role is to emulate a UE behavior 2020-12-12 15:58:33 +01:00
Andre Puschmann 2be85217fd mac,ue: reset demux when restting MAC 
this potentially fixes the issue we see during HO and RLF
under high DL load.

The issue happens because buffered DL PDUs are delivered to
RLC after reestablishing RLC that confuse the receiving
RLC entity bc the sequence numbers are very high, as opposed
to begin with zero again after reestablishment.
 2020-12-12 15:58:33 +01:00
Andre Puschmann 6773f6d02f pdu_queue: add reset method to empty queue 2020-12-12 15:58:33 +01:00
Francisco Paisana 64fca23eb3 extended dci content checks of DL and UL grants in the scheduler random tester. 2020-12-12 15:58:33 +01:00
Francisco Paisana 88105c1577 change the namespace of tti point helper functions for the eNB 2020-12-12 15:58:33 +01:00
Francisco Paisana 114932b4c6 extended common sched test suite api to multi carrier 2020-12-12 15:58:33 +01:00
Francisco Paisana f24e5aadaf clean common sched output tests 2020-12-12 15:58:33 +01:00
Ismael Gomez 67690136be Select strongest cell after cell search (#2001) 
* Select strongest cell in all frequencies when

* Change variable name
 2020-12-12 15:58:33 +01:00
Ismael Gomez 524453a6af Fixes N_pucch_cs allocation to avoid collision with SR 2020-12-12 15:58:33 +01:00
Ismael Gomez 13f1d65b24 Add missing current_tx_nb which was causing all in uplink to fail 2020-12-12 15:58:33 +01:00
Ismael Gomez 709d69d55f Reset rv_idx after an adaptive retx in UE 2020-12-12 15:58:33 +01:00
Ismael Gomez 8ed6345ff2 Do not reset softbuffer on each iteration 2020-12-12 15:58:32 +01:00
Andre Puschmann f155b7a5d5 rlc: fix stopping of poll retx timer (#2006) 
* rlc_am: add TC for pollRetx timer handling

* rlc_am: fix stopping of pollRetx timer

stopping the pollRetx timer when receiving a status PDU
without checking the acknowledged PDUs is wrong.

if an ACK for another PDU, for which the polling bit has been set,
is still pending, it won't be rescheduled until another
PDU is transmitted that again starts the pollRetx timer.

this fixes the issue with missing RLC AM segment retx in #1992,
and #2003
 2020-12-12 15:58:32 +01:00