- This addition is based on past tests, iperf3 UDP throughput was 520Mbps DL and 40Mbps UL.
- Throughput degrades when using OAI L1 with tags beyond `2024.w30`.
- This RU is being CI tested only in the Aerial pipeline, not with OAI L1.
- The document will be updated once the issue is identified and fixed.
The above is necessary to not compile as many gNB dependencies into the
UE. RLC only uses GTP, which was satisfied by L2_NR, but that's not
necessary. However, only that change results in
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/libe2_ran_func_cuup.a(ran_func_rc.c.o): in function `get_list_for_report_style':
openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc.c:596:(.text+0xbe7): undefined reference to `cp_e2sm_rc_event_trigger'
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc.c:596:(.text+0xc5b): undefined reference to `cp_e2sm_rc_event_trigger'
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc.c:596:(.text+0xd3b): undefined reference to `cp_e2sm_rc_event_trigger'
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc.c:596:(.text+0xd9d): undefined reference to `cp_e2sm_rc_event_trigger'
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc.c:596:(.text+0xded): undefined reference to `cp_e2sm_rc_event_trigger'
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/libe2_ran_func_cuup.a(ran_func_rc.c.o):openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc.c:596: more undefined references to `cp_e2sm_rc_event_trigger' follow
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/libe2_ran_func_cuup.a(ran_func_rc_subs.c.o): in function `remove_rc_subs_data':
openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc_subs.c:60:(.text+0xbe): undefined reference to `find_if'
/usr/bin/ld: openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc_subs.c:62:(.text+0xca): undefined reference to `free_e2sm_rc_event_trigger'
nr-cuup previously satisfied these dependencies by depending on L2_NR
which links in e2_ran_func_du_cucp_cuup. However, the nr-cuup E2 RAN
functions are in e2_ran_func_cuup. In the latter, the file rc_data_ie.c
was missing (for cp_e2sm_rc_event_trigger), which in turn needs
e2sm_rc_ir_obj. Finally, find_if comes through alg.
Co-authored-by: Robert Schmidt <robert.schmidt@openairinterface.org>
Realtime and near-realtime RFSimulator alternative without channel modelling.
The purpose of this library is to allow realtime simulation of gNB and nrUE.
The library is loaded using --device.name shm_radio. The server side (gNB) should also
configure --shm_radio.role server and --shm_radio.timescale <timescale> according to requirements.
Limitations:
- Only 1UE-to-1gNB connection supported
Future work:
- Channel modelling
- Telnet API
- Histogram of the TX time budget
This implements a server-client bidirectional time domain IQ channel via
shared memory.
The server creates the channel and should be aware of the client
receiver configuration (num rx/tx antennas).
Server shall be the time source and should call shm_iq_channel_produce_samples
at regular intervals
Integration: `2025.w12`
Closes#920 and #915
See merge request oai/openairinterface5g!3325
* !3301 Remove unused NR UE PHY unit tests
* !3319 Disable EPS NAS security algorithms in 5GMM UE capabilities
* !3315 SCTP: avoid assert on partial SCTP message
* !3323 Fix long RACH regression
* !3311 Harmonize and update Frequency Range computation to the current values specified by the standard
* !3320 Miscelaneous improvements in PHY simulators
* !3286 Add support for ARM build pipeline
* !3308 remove ul_ch_estimates_time to save memory
* !3310 remove globale llr_layers to save memory, improve CPU, simplify code
* !3274 Add initial support for RedCap
* !3328 Fix ULSCH ID type to handle large max_nb_pusch values (ULSCH procedures)
* !3329 NR build improvements
* !3285 Update FHI 7.2 documentation, minor code cleanup
The 5GMM library in openair3/NAS/NR_UE/5GS/5GMM/ contains the
all the definitions necessary to do the enc/dec of 5GMM IEs.
5GMM messages can share the same IEs, therefore they can use
common definitions and enc/dec functions.
The goal of this commit is to add common definitions to new shared
5GMM library files. The consumers of fgmm_lib are the functions
defined in the openair3/NAS/NR_UE/5GS/5GMM/ library.
Update FHI 7.2 documentation, minor code cleanup
- remove some unused functions
- make one function static
- add callback function documentation
- provide some developer function
NR build improvements
This MR is an attempt to improve compilation of NR softmodems by
removing some of NR-LTE cross-compilation (at the cost of a small dummy
file for nr-softmodem) and one small gNB-NRUE cross-compilation.
Fix ULSCH ID type to handle large max_nb_pusch values (ULSCH procedures)
The ULSCH_id variable is currently defined as uint8_t, which limits its
range to 0-255. However, gNB->max_nb_pusch can exceed this range
depending on the configuration (buffer_ul_slots and
MAX_MOBILES_PER_GNB). This can lead to incorrect behavior or undefined
results when max_nb_pusch is larger than 255. This commit changes the
type of ULSCH_id from uint8_t to int to accommodate larger values of
max_nb_pusch.
The issue was observed when running the OAI gNB with MAX_MOBILES_PER_GNB
set to 64 UEs. The root cause was traced back to the changes to UL
processing introduced in !2952.
Change to bool for clarity. The log message would sometimes only show up
at the end, which is misleading; use the logging module, which
harmonizes log statements and should make this appear immediately.
We still do not handle RUs with MTUs of 1500 properly in F release;
therefore, for the close future, we cannot remove support for E release.
Also, it "promises" this for January, which is in the past already.
Update to keep the warning logical.
remove ul_ch_estimates_time to save memory
remove ul_ch_estimates_time that saves 50MB memory to access in RAM, and
make better quality scope data passing (no race)
Add support for ARM build pipeline
Modify the existing python code to be able to build images where the
image tag can be prepended with a prefix, here arm_. This is preparatory
work to create the ARM build image pipeline, and reuse the existing
internal registry on porcepix to have x86 and ARM images coexist.
Fix various bugs in the build system to allow to build on a system with
as many cores as gracehopper.
Also, fix two programs (usim, nvram) to work correctly under ARM.
Miscelaneous improvements in PHY simulators
1: Add a SIGINT handler to NR PHY simulators
When using T2 virtual functions, it is important to properly stop DPDK
and free the device. Otherwise the virtual functions may be blocked and
a restart of the admin application is necessary.
If not carefully done, such kind of operation can lead to losing cores
to DPDK processes that cannot be stopped. This can lead to situations
where the machine is locked and can only be unlocked by a power cycle.
Always properly stopping DPDK and freeing the device reduces the risk of
such situation to happen.
Up to now, SIGINT was shutting down the PHY simulators without freeing
the device. This commit adds a signal handler to handle SIGINT in a way
that allow to properly free the device.
This feature is added to all the NR PHY simulators whether they use T2
or not in case it is now or later of any use.
2: Make nr_ulschsim functional
There were two issues that were making nr_ulschsim non functional:
1. The channel output was not copied to decoder input (llr array)
2. The test on decoding successful outcome was wrong
The result was that nr_ulschsim was succesfull whatever were its
arguments. This changeset fixes the two issues so that nr_ulschsim is
now functional.
Jaroslava Fiedlerova