Closed arifkyi closed 11 months ago
hdtuanss
commented
12 months ago HI, it seems no downlink packet was successfully decoded. Could you run LTESniffer for a longer time and add -d to your command too print out the debug message?
sudo LTESniffer -A 1 -W 6 -f 1832500000 -I 332 -p 15 -m 0 -d
Also, please check again number of PRB (15 in your command) of the listening cell, or using -C option to find all available cells.
sudo LTESniffer -A 1 -W 6 -f 1832500000 -C -m 0 -d
Thanks.
arifkyi
commented
12 months ago Hello Hdtuanss,
Thank you sooooo much for your response,
anyway everytime i tried the -C command in my HackRF sudo LTESniffer -A 1 -W 6 -f 1832500000 -C -m 0
it's alway like this, it wont stop if i dont type the ctrl+c : /usr/src/LTESniffer/build/srsRAN-src/lib/src/phy/rf/rf_utils.c:207: Could not find any cell in this frequency Cell not found after 299 trials. Trying again (Press Ctrl+C to exit) Searching for cell... /usr/src/LTESniffer/build/srsRAN-src/lib/src/phy/rf/rf_utils.c:207: Could not find any cell in this frequency Cell not found after 300 trials. Trying again (Press Ctrl+C to exit) Searching for cell... /usr/src/LTESniffer/build/srsRAN-src/lib/src/phy/rf/rf_utils.c:207: Could not find any cell in this frequency Cell not found after 301 trials. Trying again (Press Ctrl+C to exit) Searching for cell...of course the frequency and port is exist right otherwise i wont get any RNTI like tha table that i already show it to you. Let me do the -d and will get back to you
arifkyi
commented
12 months ago Hello the result of -d , i noticed some how intermittent saved not saved pcap sudo LTESniffer -A 1 -W 6 -f 1832500000 -I 332 -p 15 -m 0 -d
[256Tracking] Total: 0 RNTIs are 64QAM table, 0 RNTIs are 256QAM table, 34 RNTIs are Unknown
64 3967 Unknown 1 1 0 0(0%) 0 0 1 0 0
65 4343 Unknown 2 2 0 0(0%) 0 0 1 0 0
66 36481 Unknown 2 2 0 0(0%) 0 0 1 0 0
67 36868 Unknown 6 6 0 0(0%) 0 0 1 0 0
68 42817 Unknown 1 1 0 0(0%) 0 0 1 0 0
69 45902 Unknown 1 1 0 0(0%) 0 0 1 0 0
70 48536 Unknown 1 1 0 0(0%) 0 0 1 0 0
71 52145 Unknown 3 3 0 0(0%) 0 0 1 0 0
72 57276 Unknown 1 1 0 0(0%) 0 0 1 0 0
[256Tracking] Total: 0 RNTIs are 64QAM table, 0 RNTIs are 256QAM table, 72 RNTIs are Unknown
Destroyed Phy Skipped subframe: 50593 / 278634 nof_decoded_locations, nof_cce, nof_missed_cce, nof_subframes, nof_subframe_collisions_dw, nof_subframe_collisions_up, time, nof_locations 1396305, 102531, 95374, 15733, 6, 0, 0.000000, 173782 Skipped subframes: 50593 (76.3%) Saving MAC PCAP file Deleted DL Sniffer core rifky@rifky-virtual-machine:~/Desktop/LTESniffer/build/src$ ls -ltr total 79940 -rw-rw-r-- 1 rifky rifky 302 Sep 23 12:27 Settings-Loop-FalconEye.sh -rwxrwxr-x 1 rifky rifky 951 Sep 23 12:27 set-cpu-governor.sh -rwxrwxr-x 1 rifky rifky 921 Sep 23 12:27 performance-mode.sh -rwxrwxr-x 1 rifky rifky 2819 Sep 23 12:27 Loop-FalconEye.sh -rwxrwxr-x 1 rifky rifky 942 Sep 23 12:27 allow-realtime.sh -rw-rw-r-- 1 rifky rifky 8747 Sep 23 12:27 Makefile -rw-rw-r-- 1 rifky rifky 2516 Sep 23 12:27 cmake_install.cmake drwxrwxr-x 3 rifky rifky 4096 Sep 23 12:27 include drwxrwxr-x 3 rifky rifky 4096 Sep 23 12:27 CMakeFiles drwxrwxr-x 3 rifky rifky 4096 Sep 23 12:39 src -rwxrwxr-x 1 rifky rifky 81784808 Sep 23 12:39 LTESniffer -rw-r--r-- 1 root root 0 Sep 23 15:32 ul_sample.raw -rw-r--r-- 1 root root 15118 Sep 23 15:37 mcs_statistic.csv -rw-r--r-- 1 root root 24 Sep 23 15:37 ltesniffer_dl_mode.pcap -rw-r--r-- 1 root root 24 Sep 23 15:37 api_collector.pcap
hdtuanss
commented
12 months ago Hi, the signal quality in your place is too low (SNR=6db as shown in your log), please place your blade RF outdoor or somewhere with a high SNR. Also, it seems you are using a weak CPU to run LTESniffer, leading to skipping many subframes, please use more powerful CPU.
arifkyi
commented
12 months ago Hello Sir,
Thank you very much for your help, you are right, some pcap saved when i moved in some other area still inside my house.
But i will find better strong signal.
Regarding CPU, would it be help if currently i use -W 6 , which is six thread, then i will just increase it ?
arifkyi
commented
12 months ago Kindly see the config of my VMware,
feel free to suggest the parameter, maximum 16 core, but i can try 9 core or maximum assign/allocate 12 core? memory when testing i put it 4 GB, i already increased it to be 8 GB
hdtuanss
commented
12 months ago Hi, I recommend you to use a real (physical) machine. Using VM is never a good option to run LTESniffer. Since the USB interface between SDR and VM is not stable, and the CPU is limited. If you still wanna try, I think you should use 12 cores and 8Gb of RAM and see the result again. What is your CPU name?
arifkyi
commented
12 months ago Dear Hoang,
You are right Sir. although as of now i have no luxury to have dedicated machine to install linux OS, my host OS is Mac OSX ver 12, if thet possible im so happy 🙏🙏 if LteSniffer have build for MacOS Darwin. anyway i already avoid the Virtualbox that’s why im using Vmware someone of friends Vmware USB more stable compare with virtual box.
My host OS is using I9 witj 8 core = 16 logical core, sure i can assign 10 or maybe 12 (i need to try first) and from 16G Ram i will assign 8G ram.
I will try it tommorow and let you know the result 🙏🙏
thanks once again.🙏
On Sat, Sep 23, 2023 at 7:50 PM Hoang D. Tuan @.***> wrote:
Hi, I recommend you to use a real (physical) machine. Using VM is never a good option to run LTESniffer. Since the USB interface between SDR and VM is not stable, and the CPU is limited. If you still wanna try, I think you should use 12 cores and 8Gb of RAM and see the result again. What is your CPU name?
— Reply to this email directly, view it on GitHub https://github.com/SysSec-KAIST/LTESniffer/issues/39#issuecomment-1732311522, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABOZWSKV33ZLP46SEPFP5QTX33LJNANCNFSM6AAAAAA5CY5CGU . You are receiving this because you authored the thread.Message ID: @.***>
arifkyi
commented
11 months ago Hello,
appologize, i forgot to close this issue. thanks for your help
Hello Need your kindly help
Im using this command:
$ sudo LTESniffer -A 1 -W 6 -f 1832500000 -I 332 -p 15 -m 0
and can get the RNTI where fetched like below and you can see one of them were 100% success
My quesrtion after i stopped, the PCAP is always empty: -rw-r--r-- 1 root root 2022 Sep 22 15:56 mcs_statistic.csv -rw-r--r-- 1 root root 24 Sep 22 15:56 ltesniffer_dl_mode.pcap
Need your kindly help for resolution ?
^C------------------------------------------------------------------------------------------------------------- Num RNTI Table Active New TX ReTX Success HARQ Normal W_MIMO W_pinfor Other
Num RNTI Table Active New TX ReTX Success HARQ Normal W_MIMO W_pinfor Other
1 1 Unknown 1 1 0 0(0%) 0 0 0 0 0
2 10 Unknown 1 1 0 0(0%) 0 0 0 0 0
3 9057 Unknown 1 1 0 0(0%) 0 0 0 0 0
4 11117 Unknown 2 2 0 0(0%) 0 0 0 0 0
5 20131 Unknown 2 2 0 0(0%) 0 0 0 0 0
6 20448 Unknown 1 1 0 1(100%) 0 0 0 0 0
7 26961 Unknown 2 2 0 0(0%) 0 0 0 0 0
8 45898 Unknown 1 1 0 0(0%) 0 0 0 0 0
[256Tracking] Total: 0 RNTIs are 64QAM table, 0 RNTIs are 256QAM table, 8 RNTIs are Unknown