It is very possible that the operating system returns a file
descriptor bigger than the size of bridge->buf (MAX_FD_RFSIMU, which
is 250 as of now). As a minimum, let's fail if the socket file
descriptor is out of bounds.
A proper solution may be implemented later, if needed.
The actual propagation delay should not be smaller than the one specified.
A too short propagation delay might result in too early reception of Msg1, and with that in a mis-detection of the RAPID.
Add the option `--rfsimulator.prop_delay` to specify the simulated receive-path (gNB: UL, UE: DL) propagation delay in ms.
This option can be used e.g. to simulate a simple GEO satellite channel by specifying `--rfsimulator.prop_delay 238.74` to both, the gNB and the UE.
This is part of the work developed by Fraunhofer IIS within the ESA-funded project 5G-GOA (https://connectivity.esa.int/projects/5ggoa).
Reset all the circular buffer to zero; this ensures that we cannot read
uninitialized data. Since this is RFsimulator, performance is not a
problem here either (and zeroing out happens only once).
Use the correct function in order to close open RFsim connections,
instead of a simple close(). If this is not done correctly, it might
happen that the softmodem closes, but an L1 thread might still read
samples (bug in higher layers). Then, RFsim tries to read a socket
(because it has an open connection), but the actual connection had been
close()d. This commit fixes this behavior.
- deleted: ../../../executables/rfsim.c
- removed unused command line options to set SINR and SNR
- removed unused functions to get SINR and SNR
- removed unused RFSIM struct members
- Add TOC
- Better describe what RFsim does
- Remove misleading, wrong, unnecessary information
* It is futile to mention --phy-test or other modes, RFsim works with
all
* Explaining how to ping is not the task of the RFsim documentation
(that is what tutorials are for)
* Remove useless/outdated build log information
- Add some more information on which flags to run
- Improve formatting, and minor clarifications
We set the RFsim TCP socket to non-blocking. Thus, it may happen that we
cannot write() to the socket when the kernel cannot handle the request,
in which case we wait some time before trying again. This is the
correct/expected behavior.
Since this is *normal*, an error message is not justified; we did not
even print a message in this case before commit 21790f9c4f introduced it.
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
This improves the RFsimulator code to reach a ~40% E2E throughput
improvement (depending on the machines).
Changes:
- reduce ring buffer size
- code cleanup for readability
- set TCP kernel parameters
Config options --reconfig_file and --rbconfig-file have been introduced
to modify the filenames of reconfig.raw and rbconfig.raw (e.g., in the
case of multiple UEs). These filen*ames* were to be prepended with
--rrc_config_path to set the path. In summary, three options were
necessary, when two are sufficient.
In this commit, change to the options --reconfig-file and
--rbconfig-file (slight change for harmonization with other options,
which mostly use dashes) to give the full path to the corresponding
files, and avoid to surprise users who would not expect to have three
options.
--rrc_config_path has been deprecated and an error will be printed if a
user attempts to use it.
- move following radios: AW2S, BladeRF, IRIS, LMSSDR, RFsimulator, USRP
- move following transports: Ethernet, benetel4g, benetel5g
- for each: create independent cmake variable to switch compilation
on/off, in order: OAI_AW2S, OAI_BLADERF, OAI_IRIS, OAI_LMSSDR,
OAI_SIMU, OAI_USRP, OAI_ETHERNET, OAI_BENETEL4G, OAI_BENETEL5G
- Remove RF_BOARD variable, allows to compile multiple boards at once
- where applicable: remove USERSPACE/LIB in path, i.e., move files up to
directories, as all are userspace libraries
Note that with the above, it is now mandatory to enable a radio
implementation before compiling it, e.g., for USRP:
./build_oai -w USRP
cmake .. -DOAI_USRP=ON && ninja oai_usrpdevif
- Add oai header to typescript and html sources, add support to commands
requiring two parameters, add more helpfiles
- Fix help bug (html comments not removed from tooltips)
- Fix backend build problem and 2 warnings
- Correctly initialize variables in nr_phy_scope.c
- Use add_subdirectory for websrv cmake build
- correctly link to asn1_lte_rrc and asn1_nr_rrc
- fix bug: correctly recognize npm packet
- only configure targets if explicitly asked for by users
- use add_subdirectory
- Use add_subdirectory for telnet cmake build
- Minor cleanup in build_oai
- Move softscope build in dedicated CMakeLists, and comment out
DEBUG_MAC_INTERFACE option (not found in code)
- Make DEBUG_ASN1 a cmake only option ( no C macro) as it's not used as
a C macro in the code, and develop align
Cedric Roux