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86 Commits
Author SHA1 Message Date
Raphael Defosseux d3478a9f9f Merge remote-tracking branch 'origin/472-add-pusch-dmrs-modes' into integration-develop-nr-2020w03 2020-01-16 12:47:23 +01:00
Raphael Defosseux 7292fb2505 NR-UE: fix temporarly the build. Quite dirty. 
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>
 2020-01-15 12:56:52 +01:00
Raphael Defosseux 7de6a7f252 Merge remote-tracking branch 'origin/develop-nr' into 472-add-pusch-dmrs-modes 2020-01-09 17:22:40 +01:00
Khalid Ahmed 23ade3ada6 PUSCH Rx channel estimation supporting DMRS type 2 
- nr_ulsim supports multiple DMRS configurations
 2019-12-18 11:05:37 +01:00
yilmazt 1b1648d504 develop-nr up-to-date 2019-12-17 18:23:10 +01:00
Florian Kaltenberger da8be6a78b Merge remote-tracking branch 'origin/pdcp-ul-noS1-v2' into integration-develop-nr-2019w50 2019-12-12 12:52:55 +01:00
laurent 80cd6940af modifications 2019-12-05 04:53:56 +01:00
Sakthivel Velumani f1740e2c9c Fixed CI failure 2019-12-02 14:11:47 +01:00
Sakthivel Velumani 620038220c Fixed a bug in channel estimation; and updated a dlsim test case 2019-11-28 17:43:24 +01:00
Raphael Defosseux 98311219ac Merge remote-tracking branch 'origin/develop-nr' into develop-nr_cppcheck 2019-11-26 13:59:54 +01:00
Sakthivel Velumani e253a6f380 Added support for nushift 2019-11-15 14:15:45 +01:00
Thomas Schlichter ef3be74025 Fix channel estimation for 3/4 sampling 
In 3/4 sampling mode, the OFDM symbol size is _not_ a power of two (e.g. 1536 instead of 2048).
In this case it is _not_ OK to calculate the modulus using a binary AND, it _must_ use either the actul modulus operator (%) using an integer division,
or a _correct_ if statement or tertianary operator like this:

re_offset = (re_offset + 4 >= ue->frame_parms.ofdm_symbol_size) ? (re_offset + 4 - ue->frame_parms.ofdm_symbol_size) : (re_offset + 4);

But of course using the actual modulus operator is much more readable and surely not much slower:

re_offset = (re_offset + 4) % ue->frame_parms.ofdm_symbol_size;
 2019-11-14 17:32:09 +01:00
Sakthivel Velumani 3185728107 Some updates in uplink and downlink channel estimations 2019-11-13 14:35:14 +01:00
Sakthivel Velumani 09b38541c8 Included DC handling for odd number of RBs 2019-11-12 14:28:34 +01:00
yilmazt c2460cc4d2 executables are compiling 2019-11-07 19:17:58 +03:00
Sakthivel Velumani 9e7186c2cb updated dlsim 2019-11-07 17:00:30 +01:00
Sakthivel Velumani f5b0658a70 Improved channel estimates around DC; 
ignored only DC pilot
 2019-11-07 16:34:33 +01:00
Sakthivel Velumani ca9b4d7ed9 Improved channel estimates around DC 
Ignored 1 pilot before and after DC
 2019-11-07 16:26:30 +01:00
Florian Kaltenberger cf025a6569 Merge remote-tracking branch 'origin/nr-tbs-fixes' into integration-develop-nr-2019w44 2019-10-30 10:22:38 +01:00
Hongzhi Wang 397480c125 update time tracking 2019-10-24 10:42:11 +02:00
Hongzhi Wang 2bfec87cb8 using ssb for time tracking 2019-10-18 10:44:02 +02:00
Sakthivel Velumani ada33879b6 Merge branch 'develop-nr' into nr-coreset-bug-fix 
Resolved conflicts. rfsim not working.
 2019-10-16 13:41:32 +02:00
Florian Kaltenberger c046eb66a6 Merge remote-tracking branch 'origin/nr-ip-over-LTE-stack' into integration_develop-nr_2019w42 
Conflicts:
	executables/nr-softmodem.c
	executables/nr-softmodem.h
	targets/ARCH/rfsimulator/simulator.c
 2019-10-14 13:40:03 +02:00
Florian Kaltenberger f26373c52b Merge remote-tracking branch 'origin/develop-nr_cppcheck' into integration_develop-nr_2019w42 
Conflicts:
	executables/nr-gnb.c
	openair1/PHY/NR_REFSIG/nr_dmrs_rx.c
	openair1/SIMULATION/NR_PHY/ulsim.c
 2019-10-14 13:34:14 +02:00
Ahmed Hussein 3a8bf560da channel estimation, compensation, etc .. 
Added the following folder:
- ../openair1/PHY/NR_ESTIMATION/

Added the following file to CMakelists.txt:
- ../openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

Added the following functions:
- nr_pusch_dmrs_rx
- nr_gold_pusch
- nr_ulsch_channel_level
- nr_ulsch_channel_compensation
- nr_ulsch_scale_channel is commented out (I think only used for downlink)

Changes from Khalid Ahmed Mahmoud Mohamed:
- nr_pusch_channel_estimation is used
- nr_ulsch_scale_channel is used
- nr_ulsch_channel_level is used
- nr_ulsch_channel_compensation is used
- multiple logging options for channel and signal magnitude
 2019-10-08 09:30:14 +02:00
Sakthivel Velumani 8961090d9a updates in pdsch channel estimation (to be discussed) 2019-10-03 18:36:07 +02:00
Sakthivel Velumani 3a5d27c591 fix for DLSCH with non zero rb offset 
CRC randomy fails for random payload (problem might be on gNB side)
 2019-09-30 15:15:12 +02:00
Raymond Knopp 6d6d05535c nr-ip-over-LTE: Resolved issue with duplicate IP packet at the receiver UE IP interface and packet losses are reduced. Remaining to identify why occasionally IP packets are received at the PDCP stack later than the time slot of their arrival at PHY/MAC. Introduced some debug logs, to be removed later. 2019-09-24 18:53:39 +02:00
yilmazt aec1263e71 initial cppcheck fixes 2019-09-10 16:37:06 +02:00
yilmazt 7bb5320716 develop-nr up-to-date as of 8.8.19 2019-08-08 17:44:19 +02:00
Hongzhi Wang 3171ece714 nr ue adding adjust gain 2019-07-26 10:33:34 +02:00
Rakesh 62c42f4e53 Fix for dmrs and data extraction for using threequarter sampling rate 2019-07-08 12:42:02 +02:00
Francesco Mani 8897b3c88d conflicts solved after merge with develop-nr 2019-04-15 15:28:56 +02:00
Florian Kaltenberger 6db55b2f24 - UE channel estimation no longer done in slot_fep. Also created dedicated memory for channel estimates of different channels 
- using nr_extract_dci_info instead of nr_generate_ue_ul_dlsch_params_from_dci as in phy_procedures_nr_ue. The latter was only a (poor) wrapper and not doing what the name suggests. also with FAPI things have to be done differently now. This will come in a next commit.
- other minor changes to remove warning
prepreatory changes
 2019-04-03 11:40:26 +02:00
Francesco Mani a8e8d55f29 changing calls to slot fep and ch estimation in procedure_nr_ue for slot based processing 2019-04-02 10:02:32 +02:00
Florian Kaltenberger 0929292a72 Merge remote-tracking branch 'origin/develop-nr' into thread-pool 2019-03-27 21:44:27 +01:00
Francesco Mani 52a142d0df bugfix in pbch correlation 2019-03-26 09:39:11 +01:00
Francesco Mani ae02c9a6fd conflicts resolved after merge with develop-nr 2019-03-22 10:34:34 +01:00
Florian Kaltenberger b68366e54a bugfix 2019-03-21 15:39:44 +01:00
laurent d9c68d8b30 new thread model 2019-03-21 14:15:26 +01:00
Francesco Mani 3fc4c6a464 multiple ssb detection via pbch dmrs (selection of best ssb only, working in pbchsim for SNR>=0) 2019-03-12 12:51:01 +01:00
Francesco Mani 6ce8c3742a minor fixes in pbchsim 2019-03-07 10:10:06 +01:00
Francesco Mani ab825dd68a bugfix in pbch channel estimation and dci debug comment mode restored 2019-03-06 08:50:30 +01:00
Francesco Mani 2aa32eff67 brute force multiple ssb detection works in pbchsim 2019-03-04 15:32:43 +01:00
Francesco Mani 62e56f212e some hardcoding removed in pbch detection still some left 2019-03-01 17:57:53 +01:00
Francesco Mani 49e9baee5b brute force ssb detection 2019-03-01 13:04:23 +01:00
Francesco Mani 353f153353 slot_fep for ssb done once before sss and pbch channel estimation moved out of slot_fep 2019-02-26 18:06:43 +01:00
Florian Kaltenberger 8c983da4eb fixes after merge 2019-02-20 14:46:57 +01:00
Florian Kaltenberger b8c127050c Merge remote-tracking branch 'origin/develop-nr' into nr_pdcch_updates 
Conflicts:
	openair1/PHY/MODULATION/slot_fep_nr.c
	openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
	targets/RT/USER/nr-ue.c
 2019-02-20 10:10:25 +01:00
Hongzhi Wang 4c5d5ea41d ue switch to slot based processing 2019-02-18 15:20:55 +01:00