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418 Commits
Author SHA1 Message Date
Robert Schmidt 5b53f4ee0f Merge remote-tracking branch 'origin/NR_UE_cell_search' into integration_2024_w22 2024-06-03 21:35:51 +02:00
Sakthivel Velumani 043da0c440 NR UE scan for SSB within current bandwidth 
Till this commit, the UE gets the position of SSB in frequency from
command line and does the syncronization by locating the SSB in time. It
does this by generating a PSS time signal during initialization with the
SSB offset given via command line. Then PSS detection is done by
correlation.

In this commit, the UE computes a list of GSCN in the current NR band
that falls within the current bandwidth for the set center frequency.
For each GSCN in the list, the UE starts a thread and performs the
following:
1. Generate PSS time signal with SSB offset for current GSCN.
2. Detect PSS, SSS and decode PBCH (this step remains the same).
After all threads finishes, the results are collected.

For now, only the first detected PBCH is used to proceed further. So
this PBCH is indicated to MAC and UE exits initial sync.

Future work: The cell search can be standalone feature where the UE
could scan for SSB in the entire NR band. This would require changing
radio's frequency on the fly as the UE's bandwidth would not cover an
entire NR band. The cell detection can futher be imporved by looking
for SIB1 for each decoded PBCH.
 2024-05-30 10:20:45 -04:00
Bartosz Podrygajlo 4622d33e3b Demystifying 10log10(2^30) in signal energy calculations. 2024-05-28 16:12:36 +02:00
rmagueta bcbf9287ba Noise power estimation and MMSE computation for DL at UE side 2024-05-03 15:07:26 +01:00
francescomani efeb538490 harmonize usage of frequency range structures 2024-04-23 12:20:42 +02:00
Robert Schmidt ebeb26528a Merge remote-tracking branch 'origin/NR_PSBCH_MERGE1' into integration_2024_w15 2024-04-15 14:34:36 +02:00
Jaroslava Fiedlerova de263d4a40 Merge remote-tracking branch 'origin/fft_size_fix_3072' into integration_2024_w15 2024-04-15 08:29:34 +02:00
Robert Schmidt 9a2e080f77 Apply clang-format 2024-04-13 08:54:15 +02:00
Raghavendra Dinavahi 94b23d1eb0 PSBCH RX TX and SLSS search procedures 
- RX/TX Phy processing accg to 38.211, 38.212 Rel16
	- PSBCH simulator used to validate TX/RX phy processing
	- PSBCH SLSS Search procedures
	- PSBCH SIM also tests SLSS SEARCH
 2024-04-12 16:07:00 +02:00
rakesh mundlamuri 47d1f8bb82 harmonizing the IDFT index at different places 2024-04-11 16:47:32 -04:00
francescomani b30c9c8f3c uselessAssignmentPtrArg 2024-04-09 16:55:51 +02:00
francescomani 686da85d05 invalidPrintfArgType_sint 2024-04-09 16:44:56 +02:00
Jaroslava Fiedlerova 06f45c462b Merge remote-tracking branch 'origin/NR_fix_layer_port_confusion_channel_estimates' into integration_2024_w13 2024-04-02 11:33:48 +02:00
Laurent THOMAS 9a4294ebab for_review_then_squash 2024-03-26 20:58:44 +01:00
Laurent THOMAS 99e1bb1a00 fix ug on pilot 2 in nr_pbch_dmrs_correlation() that is lacking signal processing, make the code in pbch simpler and faster 2024-03-26 20:57:31 +01:00
Laurent THOMAS 39400a458e change partially pbch detection to c16_t instead of hidden complex in int16_t and int32_t 2024-03-26 20:57:31 +01:00
francescomani ca949b4c29 remove nushift in DL channel estimation 2024-03-26 10:47:19 +01:00
francescomani be807c92bd use layer number and not dmrs port number to index pdsch channel estimates (plus some code improvement) 2024-03-26 09:44:18 +01:00
Robert Schmidt e9e67b40fe Merge remote-tracking branch 'origin/ue-rework-keep-sync-in-frame' into integration_2024_w10 2024-03-08 18:56:50 +01:00
Robert Schmidt 132949c226 Merge remote-tracking branch 'origin/NR_DMRS_rx_improved_comments' into integration_2024_w10 2024-03-08 07:19:47 +01:00
Robert Schmidt e24f5d635c Merge remote-tracking branch 'origin/cleanup_fapi_and_more' into integration_2024_w10 2024-03-08 07:16:04 +01:00
Laurent THOMAS c5e4bea6b9 make explicit return of the clock drift to shift the corresponding number of samples 
remove corresponding global variables
 2024-03-07 15:28:22 +01:00
mir fc8d0c59c6 Scan build: Result of operation is garbage or undefined 2024-03-07 11:00:57 +01:00
francescomani 284d07c5ae nfapi_nr_interface cleanup 2024-03-06 11:38:26 +01:00
francescomani c464c27f63 adding comments to clarify that DMRS samples generated for channel estimation at reception already takes into account complex conjugate needed for said estimation 2024-02-29 18:59:48 +01:00
Laurent THOMAS 948188b200 basic C cleaning of dci decoding 2024-02-27 10:04:45 +01:00
Laurent THOMAS b5e169ec07 add const or other simple C code improvement 2024-01-09 16:15:14 +01:00
francescomani d247abb53d code cleanup 2023-11-03 10:15:25 +01:00
Laurent THOMAS bba9aac079 fix most of doxygen warnings and errors 2023-10-26 16:47:19 +02:00
Raphael Defosseux cc57fea7b3 Merge remote-tracking branch 'origin/NR_UE_DL_channel_estimation_fix' into integration_2023_w37 2023-09-15 10:52:52 +02:00
Raymond Knopp a7bc282302 First-level of support for new aarch64 machines 
Testing on Neoverse N1 (Ampere 3GHz). Tested only on a subset of phy-simulators.

- Changes:
- use SIMDE consistently
- adaptations of LDPC decoder generator for ARMv8 performance
- SIMDe modifications of Intel CRC to allow for aarch64 build.
  optimizations for 128-bit to improve performance of LDPC encode/decode
  on aarch64 (Neoverse 1)
- added BG2 files for 128-bit ldpc encoder (aarch64)
- testing on Xeon
- testing on x86
- minor changes to build/run on x86
- change in crc.h after returning to aarch64
- removed some warning in ldpc decoder generator for x86_64
- char
- Delete irrelevant constants
- Correctly declare variables
- Define stdbool for all architectures
- Remove definition of _MM_SHUFFLE and use SIMDE_MM_SHUFFLE
- Remove commented code
- Fix CMakeLists.txt
- Include SIMDE avx2 functions in tools_defs.h
 2023-09-13 17:19:20 +02:00
francescomani 07850586f5 fix for dl channel estimation 2023-09-13 08:34:22 +02:00
Robert Schmidt 48dd9bb31f Merge remote-tracking branch 'origin/remove-small-races-in-ue' into integration_2023_w36 2023-09-11 14:10:26 +02:00
rmagueta a629feec29 Remove duplicated nr_est_delay_pdsch()/nr_est_timing_advance_pusch() functions and just create the function nr_est_delay() 2023-09-04 17:09:35 +01:00
rmagueta 9f7b159039 Remove duplicated function freq2time() 2023-09-04 17:09:35 +01:00
rmagueta 39919152cb Implementation of delay compensation in NFAPI_NR_DMRS_TYPE2_linear_interp() at UE 2023-09-04 17:09:35 +01:00
rmagueta 087f9a0bc2 Implementation of delay estimation in NFAPI_NR_DMRS_TYPE2_linear_interp() at UE 2023-09-04 17:09:35 +01:00
rmagueta e0ab96eedc Implementation of delay compensation in NFAPI_NR_DMRS_TYPE1_linear_interp() at UE 2023-09-04 17:09:35 +01:00
rmagueta 7611fe671f Implementation of delay estimation in NFAPI_NR_DMRS_TYPE1_linear_interp() at UE 2023-09-04 17:09:35 +01:00
Laurent THOMAS e74b9a5c29 remove a frame param useless attribute 2023-08-30 15:27:33 +02:00
Florian Kaltenberger 9983478a61 addressing reviewer comments: removing warning messages 2023-08-08 18:39:38 +02:00
Sagar Parsawar f64179039e Applied clang formatting 2023-08-08 18:35:05 +02:00
Sagar Parsawar 4f9aa86510 Compile error fix 2023-08-08 18:31:10 +02:00
Sagar Parsawar 386881c382 Fixed PRS IDFT 16x oversampling buffer issue 2023-08-08 18:31:10 +02:00
Sagar Parsawar 3f6ed8d14a Fix for multiple gNB SSB decode in UE phy-test mode 2023-08-08 18:29:14 +02:00
Thomas Schlichter c01359215d NR_UE: improve NFAPI_NR_DMRS_TYPE1_linear_interp() 
The DL filter was shifted relative to the contributing DM-RS pilots.
This is fixed by using the UL filter from gNB.
 2023-07-26 09:31:42 +02:00
Laurent THOMAS 37752af2cf make common code for data copy to the scope 2023-07-19 10:19:25 +02:00
francescomani f770958d9d workaround to make UE decode DLSCH with other SI 2023-07-10 18:26:06 +02:00
Robert Schmidt af923d6e0b Merge remote-tracking branch 'origin/100MHz_on_x310' into integration_2023_w23 2023-06-08 18:23:55 +02:00
Robert Schmidt 020f72d90e Merge remote-tracking branch 'origin/NR_undefined_behavior_fixes' into integration_2023_w22 2023-06-02 13:27:24 +02:00