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  1. 06 Jun, 2024 2 commits
  2. 28 Mar, 2024 1 commit
  3. 13 Mar, 2024 1 commit
  4. 28 Nov, 2023 1 commit
  5. 10 Oct, 2023 1 commit
  6. 02 Oct, 2023 2 commits
  7. 22 Sep, 2023 3 commits
  8. 23 Aug, 2023 1 commit
  9. 12 Aug, 2023 2 commits
    • Robert Schmidt's avatar
      Repair reestablishment and make it work via F1 · 7a298e73
      Robert Schmidt authored
      This commit repairs the reestablishment after the introduction of the CU
      UE ID in the CU, different from the DU UE ID. Now, the CU uses an
      identifier different from the RNTI, used in the MAC, to refer to UEs.
      
      To repair the reestablishment, a number of changes needed to be
      introduced:
      
      - Handle old_gNB_DU_UE_id in MAC
      
      The MAC handles the old_gNB_DU_UE_id field in the DL RRC Message. The
      commit adds encoding/decoding of the field. The MAC will drop the old
      UE, but retain the CellGroup of the corresponding UE(!). Because a UE
      releases the spCellGroup on reestablishment, the MAC does the same; it
      needs to reapply the old configuration after a reconfiguration. For the
      latter, introduce new variables to keep a "future" CellGroupConfig to be
      applied (reconfigCellGroup) and a flag (expect_reconfiguration) that
      applies the CellGroupConfig if a DL RRC Message transfer on DCCH, which
      is assumed to be the reconfiguration.
      
      - Add RNTI change in RLC
      
      The RLC needs to reuse the old UE context. Hence, we simply change the
      RNTI in the old context, and delete the new one.
      
      - No PDCP UE ID change
      
      The previous implementation of the PDCP used the RNTI; hence, the ID
      needed to be switch (as above for the RLC). Since the PDCP now also uses
      the CU UE ID, no identifier change is needed, and we remove all
      corresponding code.
      
      - No MAC modifications/update from CU
      
      As foreseen by the spec, the CU does not modify or change the
      cellGroupConfig in the RRC during reestablishment. This change will be
      generalized in the future to all of the RRC.  Also, the
      nr_rrc_mac_remove_ue() function has been removed: the MAC handles any UE
      changes autonomeously, without being triggered from the RRC explicitly.
      
      - Remove reestablish_rnti_map
      
      The RRC does not use RNTIs for UE identification. Hence, a
      reestablish_rnti_map to link two UEs to each other is not necessary
      anymore.
      7a298e73
    • Robert Schmidt's avatar
      Trigger Reestablishment via resetting RLC sequence numbers · b90a59a6
      Robert Schmidt authored
      Plugin can trigger reestablishment (on DU)
      and show counters of reestablishment (on CU)
      b90a59a6
  10. 11 Apr, 2023 1 commit
    • Robert Schmidt's avatar
      Reuse get_DRB_RLC_BearerConfig() to get RLC-BearerConfig · d021fbd0
      Robert Schmidt authored
      For nr_DRB_preconfiguration() and fill_default_secondaryCellGroup(),
      there is duplicated code to generate and RLC-BearerConfig, when calling
      the existing get_DRB_RLC_BearerConfig() (with the right parameters)
      yields a similar configuration (see exceptions below).
      
      Differences:
      - We do not support reestablishmentRLC, so we don't set it
      - Set prioritisedBitrate to 8kbps instead of infinity (we don't
        prioritize anything, anyway)
      - bucketSizeDuration is 50ms instead of 100ms
      d021fbd0
  11. 20 Mar, 2023 2 commits
  12. 12 Dec, 2022 1 commit
  13. 25 Nov, 2022 1 commit
  14. 12 Aug, 2022 1 commit
    • Cedric Roux's avatar
      nr rlc stats: make avg time to tx optional · 1b029be0
      Cedric Roux authored
      Introduce the function nr_rlc_activate_avg_time_to_tx() to
      activate/deactivate collection of avg time to tx stats (which
      may have an impact on realtime processing, so better not compute
      them when not needed).
      
      Fix a little bug in time_average_get_average() for when there is not stat.
      1b029be0
  15. 04 Aug, 2022 1 commit
  16. 07 Apr, 2022 1 commit
  17. 02 Jul, 2021 1 commit
  18. 12 May, 2021 1 commit
  19. 26 Feb, 2021 1 commit
  20. 01 Dec, 2020 1 commit
    • cig's avatar
      Do configuration of DRB UM in RA mode · 05d4b920
      cig authored
      - do DRB preconfiguration for deafult C-RNTI if !do_ra
      - moved redundant configuration code at RLC layer to new RLC functions
      05d4b920
  21. 13 Nov, 2020 1 commit
  22. 27 Oct, 2020 1 commit