Simplify usage of the old segment decoding libraries with the slot coding interface
This MR transforms the segment coding libraries into slot coding
libraries by statically linking the adaptation layer and the segment
coding libraries.
Therefore they can be used directly in ldpctest which uses the segment
coding interface as well as in all the other PHY simulators and the NR
softmodem which use the slot coding interface.
It is not anymore needed to use the
--nrLDPC_coding_segment.segment_shlibversion
flag. Instead a segment coding library can be directly chosen with
--loader.ldpc.shlibversion
since it implements the slot coding interface.
* added fgs_mm_mode_t enum
* added struct member to NAS
* modes: FGS_IDLE, FGS_CONNECTED
* according to 5GS mobility management (5GMM) modes 5.1.3.2.1.1 of TS 24.501
The variable block_length had an ambiguous role and was used as both K and Kprime.
This was leading to arrays with wrong sizes and functions with wrong arguments.
Now there is not anymore block_length but K and Kprime.
Kprime can be set with the command line argument `-l`.
There was also some problems with array allocation for segments with length not divisible by 8.
A proper sizing with `((size_in_bits + 7) & ~7) / 8` was used.
A proper masking of the last byte containing payload bits was also added to keep filler bits to 0 after random initialization.
The name ldpc8blocks_coding_segment was previously used to avoid any confusion with ldpc8blocks while both were coexisting.
They are not anymore coexisting so it can now be shortened.
While timers were available for rate matching and interleaving in the new interface,
these timers were not merged to rate matching and interleaving timers in nr_dlsch_coding.
Integration: `2025.w05`
Closes#885
See merge request oai/openairinterface5g!3233
* !3102 Dockerized development environment
* !3185 Add IQ file recording and IQ file viewer to ImScope
* !3218 more layer1 cleaning
* !3224 Ensure execution of processSlotTX in order in NR UE
* !3231 Bugfix in frame and slot setting for ULSCH beam allocation
* !3229 Verify the integrity protection of the RRCReestablishment message
* !3230 FHI72: fix for single distributed antenna array for xran F release
* !2984 NAS 5GS refactor
* !3235 Parametrized JenkinsNode and JenkinsResource
* !2799 Changes to support multiple TDD patterns
* !3208 Downgrade gNB power limit LOG from "warning" to "debug"
Downgrade gNB power limit LOG from "warning" to "debug"
Downgrade the UE power limited LOG from LOG_W to LOG_D. This is to avoid
flooding stdout when UE in low coverage enters power limited state for a
longer period of time. The same information can be inferred from the
periodic UE print which also contains PH value (negative PH values
indicate that the UE is power limited)
Also, correct some typos in PH calculation.
Closes#885
Changes to support multiple TDD patterns
- Updated the configuration changes for 2 Patterns
- Update the TDD table configuration for NFAPI
- Added the tdd bitmap for the period
- Adapted the bitmap for UL/DL for the multi TDD pattern
- Updated the RACH procedure for multi TDD pattern
- Updated DL and UL scheduler for multi TDD pattern
Parametrized JenkinsNode and JenkinsResource
Parametrized variables in Jenkinsfile for automated tests on Colosseum
after update of OAI Jenkins server.
NAS 5GS refactor
The goal of this MR is to reorganize the NR NAS code into:
- enc/dec library functions (5GS, 5GMM, 5GSM, NR_NAS_defs.h,
nr_fgs_nas_lib.c)
- handlers and callbacks (nr_nas_msg.c)
The following changes are introduced:
1. migrate 5GS enc/dec lib (5GMM and 5GSM) to a dedicated folder
2. add a nested CMakeLists structure
3. refactor NR NAS enc/dec functions
4. refactor NR NAS messages struct definitions
5. remove most of dependency from NAS LTE
6. further refactor of PDU Session Establishment Accept processing to
separate enc/dec from handling
7. made naming of 5GS definitions consistent whenever necessary
8. cleanup unused code
9. remove redundant struct definitions
Also:
1. fix decoding of AMF Set ID in 5G-S-TMSI UE identity
2. replace Byte_t directly with uint8_t
FHI72: fix for a distributed antenna array for xran F release
in the Rx callback I reset the number of section descriptions/number of
fragments to 0, but for each antenna up to max number of antennas per
RU, instead of up to max number of distributed antenna array
* Remove the ulsch_slot_bitmap and dlsch_slot_bitmap from nrmac
* Adopt the new is_dl_slot/is_ul_slot functions in the stack
to replace is_xlsch_in_slot: these functions are getting
the DL and UL slots as they are set in the TDD configuration
stored in tdd_slot_bitmap (frame_structure_t)
* Keep is_xlsch_in_slot in openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c:
this is necessary because the phy-test pre-processors are using the bitmaps
dlsch_slot_bitmap and ulsch_slot_bitmap to check which DL/UL slots to use
for transmission among those set in the TDD configuration
Co-authored-by: Guido Casati <guido.casati@firecell.io>
previously we had decodeRegistrationAccept acting as a handler and calling
decode_registration_accept to do the decoding. However the logic was mixed
between the two functions, the naming was confusing and the code was hard
understand. The goal of this commit is to simplify the code, improve
readability and maintainability, while adapting the relevant function
to the new OAI NAS libs structure.
To this purpose:
* move enc/dec logic to NAS lib openair3/NAS/NR_UE/5GS/5GMM/MSG/RegistrationAccept.c -
the logic of parse_allowed_nssai, get_allowed_nssai has been moved to
decode_registration_accept and decode_nssai_ie
* add decode_nssai_ie and use it for both Allowed/Configured NSSAIs list (IE handling was added)
* do processing in the handler handle_registration_accept
* simplify the code by removing nested calls
* improve handling of PDU length
Currently only Registration Result, 5GS Mobile Identity, Allowed/Configured NSSAI
are decoded. The other optional IEIs are skipped (only the length is processed).
Downgrade the UE power limited LOG from LOG_W to LOG_D. This is to avoid flooding
stdout when UE in low coverage enters power limited state for a longer period of
time. The same information can be inferred from the periodic UE print which also
contains PH value (negative PH values indicate that the UE is power limited)
- in the Rx callback I reset the number of section descriptions/number of fragments to 0,
but for each antenna up to max number of antennas per RU, instead of up to max number of a distributed antenna array
Ensure execution of processSlotTX in order in NR UE
Make sure that processSlotTX is executed in slot order.
There is a bug that causes decoding error when processSlotTX is executed
out of order. The root cause is not known at this point, but this change
avoids the bug altogether.
Robert Schmidt