Release v2.2.0

General 5G improvements (both gNB and UE):
- Make standalone mode (SA) the default (see doc/RUNMODEM.md)
- Experimental support for FR2 operation
- Support for GEO NTN and simulation of GEO satellite channel in RFsimulator
  (see doc/RUNMODEM.md)
- Support 2-step RA
- Add optional LTTng logger in logging module (see
  common/utils/LOG/DOC/lttng_logs.md)
- Support for YAML-based config files (alongside libconfig) (see
  ci-scripts/conf_files/gnb.sa.band78.106prb.rfsim.yaml and
  ci-scripts/conf_files/nrue.uicc.yaml)
- Add new L1 scope based on Dear ImGui (see openair1/PHY/TOOLS/readme.md)
- Allow cross-compilation on ARM (via SIMDE SIMD emulation library)
- Allow to build and run with clang
- Support/check for Linux capabilities, allow to run without sudo (see
  doc/tuning_and_security.md)
- OAI does not modify CPU frequency and networking stack
  (doc/tuning_and_security.md)
- Bugfixes in the entire stack (e.g.  #547, #663, #674, #687, #712, #736, #739,
  #741, #756, #762, #773, ...)

5G gNB:
- Support for FR2 interoperability with COTS UE (no beam switching supported yet)
- Add 4-layer DL MIMO (experimental)
- Add gNB Neighbour configuration and Mobility over F1 interface (see
  doc/handover-tutorial.md)
- Enhance O-RAN FHI 7.2: (see doc/ORAN_FHI7.2_Tutorial.md)
  * Support different bandwidths (40/60/80/100MHz) and antenna configs (1x1 up
    to 4x4) for Benetel/VVDN/LITEON RUs
  * Add support for multi-RU support (single-cell/distributed antenna)
- Support AMD T2 Telco card look-aside L1 accelerator (see
  doc/LDPC_T2_OFFLOAD_SETUP.md)
- Support Nvidia Aerial/ARC in-line L1 accelerator (see
  doc/Aerial_FAPI_Split_Tutorial.md)
- Various fixes for multi-UE operation: by default support of up to 16 UEs concurrently
- Documentation for
  - 5G MAC (see doc/MAC/mac-usage.md)
  - 5G RRC (see doc/RRC/rrc-usage.md)
  - E1 (see doc/E1AP/E1-design.md)
  - F1 (see doc/F1AP/F1-design.md)

5G UE:
- Basic interoperability with COTS gNB (Nokia gNB)
- Implement PHR reporting
- Implement RRC re-establishment
- Implement PUCCH/PUSCH/SRS power control
- Implement UCI on PUSCH and aperiodic CSI reporting
- Support of cell search (within the selected UE bandwidth) (see doc/RUNMODEM.md)
- Enhance connection control: implement timers, resync
- A lot of internal cleanup

This release also includes many fixes and documentation updates. See
doc/README.md in the repository for an overview of documentation.

Integration 2024 week 46

* !3095 UE: Set default SSB config
* !2991 fix BSR report malformed, add SHORT BSR when it can (instead of LONG BSR)...
* !3104 Trigger deregistration only in SA mode → small fixup?
* !3107 Clip the input for -32768 because this will make different result in...
* !3109 T tracer: support float types in traces
* !2777 NR UE trigger for re-establishment
* !3108 Prevent segfaults in gNB stack
* !3059 Test for init_RA
* CI: increase UE thread pool size
* !3036 Further improvements in analog beam management for CSI-RS
* !3093 Added NTN FDD FR1 bands defined in 3GPP TS 38.101-5

Integration 2024 week 45

* Support for RHEL 9.5
* !3048 Cleanup and refactoring at gNB initialization
* !3077 Address most thread safety issues in NR UE
* !3089 Improve cross-compile documentation
* !3092 Remove Interop-F1/Accelleran-CU testing pipeline
* !3096 Remove x86-specific instructions from telnet server
* !2949 Better polar decode
* !3070 CI: Add test with 4 DL layers, 60 MHz BW to SA-2x2 pipeline
* !3098 nr rlc: hotfix: test allocation valid before use
* !3090 Add UL PRBs Blacklist section to NR_SA_Tutorial_COTS_UE.md
* !3082 fix blocking bugs in command nr_dlsim -n100 -e27 -s35 -b 273 -R273 -x4 -y4 -z4
* !3100 CI: Remove 5g_l2sim files
* !3024 Set SA mode as default
* !3087 Remove some usage of the old CI sshConnection class
* !3074 CI: cleanup of cls_physim.py

Integration 2024 week 44

* !2988 Add functional DFT test
* !3072 snow3g: fix array size
* !3073 small fix for 3 digit mnc usage in sib1
* !3040 Update pbchsim to work with other numerologies
* !3078 Simplify logs in gNB&UE
* !3080 Add Fedora 41, build_oai cleanup
* !3061 RLC optimization
* !3008 Fix regression 4g
* !3084 Fix a typo in nrue.uicc.yaml file
* !3085 chore(ci): creating a develop tag on top of develop-commit-id tag for the local private registry

Integration 2024 week 40

* !2886 (doc): Added a new doc on hardware requirements
* !2955 dockerized clang-format error detection tool
* !3005 Fix symbol size in nr_dlsch_mmse
* !2930 SRS tx power
* SA-B200-Module-SABOX pipeline: improve radio
* SA-AW2S-CN5G: accept 5% ping packet loss
* !3003 Resolve "SEGFAULT in L1_rx_thread" - CI
* !3016 fix tests for log2_approx and log2_approx64
* patch to move RFsim-4G to cacofonix
* !2890 F1AP encoding/decoding library
* !2969 Time domain samples scope for NR UE & gNB
* !2998 warmup RF board in UE
* !3009 Fix the ratio of PDSCH EPRE to DM-RS EPRE
* !2965 Refactoring of prepare_scc in gNB config
* !3002 CI: Change frequency used by AW2S pipeline
* !3007 Enable gNB configuration through YAML file
* !3001 Minor ue fixes
* !2971 Use getaddrinfo() when connecting to rfsimulator

Integration 2024 week 41

* !3006 Fix some sizeof and switch-case issues
* !3028 Add CMakePresets.json
* !3011 Aerial: cleanup unused code, avoid superfluous memcpy(), avoid L1 structures
* !3022 NR CSI-RS L1 refactoring
* !2935 Improvements in handling the beamforming procedure via FAPI
* !3026 NR ULSCH scheduler fix when using transform precoding
* !3031 CI: Increase test bitrates for 100 MHz scenario in SA-2x2 pipeline
* !3017 Fix SRS
* !2731 Implementation of 2-Step RA
* !3027 Add dockerized include what you use tool

Integration 2024 week 43

* !3058 CI: remove unused code, clean up imports
* !2994 Refactor file descriptor handling in rfsimulator
* !3010 Fix heap overflow in websrv
* !3043 CI: Update RAN-gNB-N300-Timing-Phytest-LDPC test cases
* !3060 process registration reject in UE
* !3062 fix nr rlc tests
* !3067 Bugfix: Fill QFI for N3 GTP messages
* !3057 Bugfix in ue pusch mac pdu creation
* !3068 getopt() returns int
* !3056 F1AP Enc/Dec Library follow-up
* !3064 T: don't check argument in optimized version of T IDs
* !2786 Add F1 Handover procedures
* !2980 Refactor NAS 5GS PDU Session Establishment Accept handling and other NAS improvements
* !3063 Update yaml-cpp dependency handling
* !2989 NR gNB scheduler improvements for BWP operation

Integration 2024 week 42

* !3047 Resolve compilation warnings on ARM
* !3052 Optimize T_ID() macro.
* !3045 CI: Reduce tested DL throughput on Aerial
* !3039 fix for Other SI reception when BWP start != 0
* !2997 websrv regression
* !3041 Update NR SA Tutorials
* !3042 Update TESTBenches.md to reflect current testbench
* !3004 Hotfix to remove an unwanted TX power reduction when using multiple TX antenna ports.
* reduce ssPBCH_BlockPower in gNB config of FHI7.2 pipeline
* !3046 A testsuite and a benchmark for RLC AM mode
* !3038 Various bugfixes for gNB stability, cleanup
* !3051 PUCCH2 DTX detection
* nr_psbchsim: fix segv by providing correct get_nrUE_params()
* !3049 Improve PUSCH and PUCCH SNR stability
* !3054 Allocate and add sD to DRB NSSAI in case sD != 0xffffff

Integration 2024 week 40

* !2718 Added Jenkins job for Colosseum testing integration
* !2901 Fix log2_approx
* !2983 fix(docker): making tini download platform specific to support ARM64 native builds
* !2919 Add E2 SM in the target dockerfiles
* !2981 NR gNB fix PMI report evaluation
* !2979 NR-UE: Merging different UE NR SLOT FEP procedures into one.
* !2899 SIB19 initialization and scheduling on gNB
* !2953 Remove unnecessary c includes
* !2926 Fix SRS FAPI at gNB
* !2987 fix for variable power in PDSCH REs in case of 25 PRBs Bandwidth
* !2993 remove DRX from UE capabilities: not supported yet
* !2711 NR UE UL time alignment handling improvements
* !2995 some small fixes for 5G NR
* !2992 cleaner faster nr_pdcch_demapping_deinterleaving() inner loop
* !2986 NR PDCP ticks for F1 split
* !2982 CI framework cleanup

Integration 2024 week 38

* !2932 Minor: Set correct USRP flags when not transmitting
* !2961 prevent UE to declare RLF in phy-test mode
* !2962 prevent UE to print HARQ processing error log for MSG2
* !2958 Automatic selection of SSB bitmap length
* !2967 bugfix: reject malformed rrcSetupComplete message
* !2947 Add 5G/NR MAC documentation
* !2959 nr rlc: fix standalone tests
* !2704 nr pdcp: add support for nea1
* !2800 UE improvements
* !2920 Receive SIB19 on nrUE
* !2975 Remove hardcoding of CPU measurements (respect option `-q`)
* !2976 Update latest SIMDE version
* !2957 T: increase max number of args
* !2916 NR UE PUSCH resource mapping optimization
* !2787 CI: increase max number of concurrent workers to 64
* !2974 fhi_72: allow to provide dpdk_mem_size to xran
* !2964 CI: Replacing the UE on Aerial setup
* !2973 CI: remove unused code and files

Integration 2024 week 36

* !2770 : CI framework deployment/undeployment refactoring
* !2869 : YAML as a drop-in replacement for libconfig
* !2871 : NR UE & gNB imscope
* !2914 : Minor improvements to NR documentation
* !2918 : NR common LLR function
* !2929 : Aligning all rockylinux-9 Dockerfiles with the RHEL9 ones
* !2942 : Fix memory leaks in NR UE
* !2944 : Workaround for PUSCH TX power not applied in PHY
* !2945 : Removing rhsm certificates
* !2946 : CI Removing the workspace creation for the LicenceAndFormattingCheck method
* !2950 : Preparation for F1 Handover

Integration 2024 week 35

* !2181 ULSCH power computation
* !2915 benchmark for rotate_cpx_vector
* !2936 Avoid complete rebuild on cmake run with git info change
* !2855 NR UE replace phy_config_request_sent
* !2937 small fixes for rfsim
* !2925 CI: Increase tested throughput in SA 2x2 pipeline
* !2934 Run optimized parity check in ldpc encoder only on supported Zc values
* !2912 changes for multi-RU support in fhi72
* !2928 Distribution check: check for F40, remove old U/RHEL releases
* !2913 NR gNB cleanup
* !2927 Update Aerial docs to reference current version
* !2940 remove double define with nr_common.h

Integration 2024 week 34

* !2906 mod: Improve signal processing speed of rotate_cpx_vector function
* !2909 NR UE SIB1 free fix
* !2917 Cleanup NR UE NAS instance handling
* !2924 Fix misalignment issues in TLVEncoder macros ENCODE_U16, ENCODE_U24
* !2907 CI: add new testcases to RFSim-5G pipeline, reduce ping and iperf test time
* !2893 LEO satellite delay and Doppler simulation and adjusted NR_UE time sync

Integration 2024 week 33

- !2784 Reworking beam structures at NR MAC gNB
- !2889 Fix delta for PUSCH DMRS type 2
- !2908 NR MAC UE CSI improvements
- !2896 Fix for llr functions reading/writing outside buffers
- !2902 nr rlc: reduce "SDU rejected" logging
- !2884 NR UE: Cleanup global variables used for command line parameter storage
- !2910 NR gNB DMRS symbol race
- CI: Update phytest-timing test threshold

Integration 2024 week 32

* !2810 add harqid in wireshark traces, refactor the trace_pdu parameters
* !2897 nr rlc: add a lock to protect access to time variables
* !2903 remove some openair1 headers included in opeinair2 files
* !2876 Enable 32 HARQ Processes in DL, UL
* !2849 Fix UE SRS crash
* !2898 Fix memory leaks in OAI gNB and OAI UE

Integration 2024 week 31

* !2812 NR UE MAC PRACH scheduling fixes
* !2885 Fix signal_energy_nodc for lengths that are not multiples of 4
* !2888 nr rlc: fix decode_poll_byte()
* !2892 Dockerfiles: correct ENV format
* !2891 UE cmd line info: print threequarter-sampling param if used
* !2837 replacing assertions with LOG_E in UE UL locking mechanism
* !2879 style(docker): newer versions of docker require keyword as to be of same case as from
* !2832 Enable PHR reporting for NR UE
* !2880 CI: Improve error handling in Iperf3 JSON analysis functions
* !2813 Rewrite time_stats_t counters for DLSCH in NR UE.
* !2882 Automatic scaling to PUCCH2 receiver
* !2691 NR UE data inactivity timer
* !2848 Refactor network interface handling
* !2865 CI: Create FHI 7.2 pipeline

Integration 2024 week 30

* !2846 Changing the CI Aerial pipeline machine from Aerial1 to Aerial2
* !2830 NR feature set update
* !2868 Fix support for USRP UHD Versions => 4.5.0.0
* !2870 fix(docker): base image for target oai-gnb-aw2s shall be jammy
* !2874 Fix memory leaks in gNB PDU Session Setup Request processing
* !2866 RRC: reject PDU sessions if security is not active
* !2829 Automatic update of USRP RX gain during initial search using --agc option
* !2878 USRP: add a T trace to record the TX IQ data on antenna 0
* !2633 Handle F1 Reset at DU, and ensure state re-init on F1Setup
* !2864 Fix an assert in power control
* !2754 Introduce gold sequence cache

Integration 2024 week 29

* !2854 Fix NSA test
* !2715 Aerial multi l2
* !2798 CI: Create Iperf2 unidirectional function
* !2859 Switch to BWP where RA is configured when Msg3 contains MAC CE for C-RNTI
* !2861 7.2 xran: notification generation code in ru_thread excluded from compilation
* !2853 Cleanup executables focusing on NR UE
* !2860 Fix segfault in SRS modulation when ue-nb-ant-tx (fp) does not match UE capabilities
* !2863 Add configuration for CBRS RU
* !2749 immediately reuse UL/DL HARQ ID and don't wait for feedback if disable_harq == 1

Integration 2024 week 28

* !2847 UE setting wrong frequency in 5G rfsimulator SA test
* !2850 NR UE MAC DCI 00 BWP handling
* !2852 \[E2 agent\] Move UE RRC_CONNECTED state signaling
* !2851 Minor code cleanup and fixes
* !2842 UE assertion for msg1_SubcarrierSpacing in RA
* !2831 PUSCH power control state
* !2838 NR UE UL FAPI PDU length fix
* !2723 add initial NTN support for NR UE
* !2764 Adding 7.2 containerfiles and docker-compose
* !2827 Increase RX_DATA.indication PDU Length to 32 bits
* remove nrqtscope

Integration 2024 week 27

* !2833 Fix images and docs links in E1AP documentation
* !2781 Fix several ASN.1 message related memory leaks in NR
* !2790 docker compose override files for testing with locally modified executables.
* !2835 Demote logs for NR band and duplex spacing
* !2822 security in re-establishment
* !2834 Fix CN tutorial SD value
* !2843 Delete assertion for PLMN in RRCSetupComplete
* !2771 NR UE PDSCH-CSI overlap
* !2721 T2 card: LDPC encoder/decoder TB processing
* !2828 Bugfix to TX_DATA.request PDU_Length computation, change input parameter to uint32_t
* !2841 Reduce number of LOG prints in NR UE log
* !2844 phy-test mode ULSCH schdeuler hotfix
* !2765 Fix issues blocking multiple UE in one process
* !2826 NR gNB ULSCH fixes
* !2845 Another phy-test ULSCH fix (missing TDA assignment)
* !2840 chore(build): removing dependency to libatlas3