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srsLTE
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2886 Commits

Author SHA1 Message Date
Xavier Arteaga a278a49e42 Limit PDSCH-NR unit test 2020-12-12 15:58:34 +01:00
Xavier Arteaga bff71761a9 PDSCH-NR: Added single layer channel equalization 2020-12-12 15:58:34 +01:00
Xavier Arteaga 0138c3b856 PDSCH-NR fixed with unit test 2020-12-12 15:58:34 +01:00
Jesus Gomez 6defd2658c Solve Issue 2: Rate matching zeroes output data prior to soft-combine 2020-12-12 15:58:34 +01:00
Xavier Arteaga fb64c2a460 Initial NR PDSCH encode/decode 2020-12-12 15:58:34 +01:00
Xavier Arteaga 666ba7d590 Added unpacked bit sequence XOR 2020-12-12 15:58:33 +01:00
Xavier Arteaga 6df83c32b3 Added NR layer mapper and demapper 2020-12-12 15:58:33 +01:00
Xavier Arteaga 3060972514 Removed redundant softbuffer dependency 2020-12-12 15:58:33 +01:00
Xavier Arteaga 644758416e DL-SCH-NR adjust unit test 2020-12-12 15:58:33 +01:00
Xavier Arteaga d27f0819a8 Fix DL-SCH for NR 2020-12-12 15:58:33 +01:00
Xavier Arteaga 53282bdfbf Dl-SCH-NR: updated unit test 2020-12-12 15:58:33 +01:00
Xavier Arteaga 4e5edb5168 DL-SCH NR added traces and fixes 2020-12-12 15:58:33 +01:00
Xavier Arteaga 2aa7e43771 Implemented NR DL SCH decoder and unit test 2020-12-12 15:58:33 +01:00
Xavier Arteaga 3464dd3c0d Added MCS table string serializer 2020-12-12 15:58:33 +01:00
Xavier Arteaga 794d1b5c4b Added LDPC decoder RM interface 2020-12-12 15:58:33 +01:00
Xavier Arteaga fa691bb8e3 Fix softbuffer 2020-12-12 15:58:33 +01:00
Xavier Arteaga 27a3e87fb7 Initial DL-SCH encoding 2020-12-12 15:58:33 +01:00
Xavier Arteaga bc66942b8d Bit unpacking input to constant 2020-12-12 15:58:33 +01:00
Xavier Arteaga 9a320baf37 extended resource allocation for NR 2020-12-12 15:58:33 +01:00
Xavier Arteaga 766a43225d 5G FEC extension 2020-12-12 15:58:33 +01:00
Xavier Arteaga 30037d9223 Added guru softbuffer interface 2020-12-12 15:58:33 +01:00
Xavier Arteaga 8e8889032e Changed CRC input vector to constant 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
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 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 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
Pedro Alvarez 454162cea7 Deleted nas_interface_stack. 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 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
Andre Puschmann 6773f6d02f pdu_queue: add reset method to empty queue 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
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
Andre Puschmann 7cf919e2af Fix MAC PDU packing after sending Truncated BSR (#2004) 
* mac_test: add extended TBSR unit test

unit test to MAC UL packing after sending a TBSR

this fixes the MAC issues described in issue #2002

* mux: fix updating of LCG buffer state after packing PDU

we've previously lowered the buffer state of the LCG according
to the bytes that have been scheduled, but not according to
those that have been actually included in the PDU.

* proc_bsr: fix LCG buffer state updating for TBSR

when sending a TBSR do not update the internal buffer
state of the BSR proc.

This caused issues because the buffer state for all LCG that
are not included in the TBSR are set to zero, although at least
one LCG does have data to transmit.

* rlc_am: include LCID when logging retx of SN
 2020-12-12 15:58:32 +01:00
Andre Puschmann 1b97ba5300 benchmark_radio: fix duration and thread priority 
I noticed that the app didn't configure the process with
RT thread prio. But it then turned out that in order to do
that we need to actually spawn a new thread. Also a few other things
didn't work out of the box.

In summary the changes are:
* fix duration to support more than 120s
* move main functionality in thread
* set high priority for radio thread
* only return success if no radio errors occured
 2020-12-12 15:58:32 +01:00
Francisco Paisana 510959b50f update nr asn1 files, and asn1 tests 2020-12-12 15:58:32 +01:00
Xavier Arteaga 8d9577626b Fix NR FEC unit test 2020-11-04 15:06:39 +01:00
Xavier Arteaga 0c2f96d389 Fix 5G NR FEC memcheck 2020-11-04 15:06:39 +01:00
Xavier Arteaga 2835e87ff0 Add missing file 2020-11-04 15:06:39 +01:00
Xavier Arteaga f8dd67260f Polar: fix unit test working directory 2020-11-04 15:06:39 +01:00