1. 08 Mar, 2018 3 commits
  2. 02 Mar, 2018 3 commits
    • Cedric Roux's avatar
    • Cedric Roux's avatar
    • Cedric Roux's avatar
      hotfix: fix bad RLC UM packet creation · 26d68e9c
      Cedric Roux authored
      Running TCP DL traffic with one connected UE showed a lot of
      fluctuations in throughput. After analysis it was found that
      sometimes the RLC UM PDU was not correct. It contained one byte
      more than it should. On the receiver side, the TCP packet
      contained in the RLC packet seems to be rejected by the TCP
      stack of the UE (it has one byte more than it should),
      leading to a brutal reduction of the throughput, probably due
      to some congestion detection in the TCP implementation.
      Or something.
      
      This hotfix seems to solve the problem. Using iperf in downlink
      with a 5MHz eNB, we see no more fluctuations, the traffic is
      very steady at 16.8Mb/s, as reported by the iperf server running
      on the phone. (17.5 in the PHY plot of the T tracer.)
      
      A rewrite of both the MAC and RLC UM packet generation is needed.
      The code is way too complex for what it does and may contain
      several similar problems that only trigger in specific rare
      conditions.
      26d68e9c
  3. 01 Mar, 2018 1 commit
  4. 26 Feb, 2018 2 commits
  5. 22 Feb, 2018 13 commits
  6. 20 Feb, 2018 1 commit
  7. 19 Feb, 2018 2 commits
  8. 18 Feb, 2018 3 commits
  9. 17 Feb, 2018 2 commits
  10. 16 Feb, 2018 2 commits
  11. 15 Feb, 2018 4 commits
  12. 14 Feb, 2018 4 commits
    • Cedric Roux's avatar
      fixup previous bad merge (UE disconnection did not work properly anymore) · 91332d39
      Cedric Roux authored
      Doing airplane mode off to connect a cots UE followed by airplane mode on
      to disconnect it gives very bad results (bad disconnection with lots of
      UL failures followed by lots of logs in the eNB). It used to work properly
      after the work done by Xu Bo.
      
      It turns out that in 2018.w04 things were still working okay. But
      in 2018.w05 no.
      
      So I ran:
      
          git diff 2018.w04 2018.w05
      
      And I checked all the modifications that I thought were relevant
      (everything related to the UE, oaisim, if4 and fapi has not been checked).
      
      This commits takes back the version of 2018.w04.
      
      The modifications in openair2/RRC/LITE/rrc_eNB.c are necessary, I think.
      
      The other modifications may not be necessary or even wrong. To be checked
      at some point.
      91332d39
    • Robert Schmidt's avatar
      a4f260f5
    • Niccolò Iardella's avatar
      Niccolo: Add sorting policy · 7e3b1f5d
      Niccolò Iardella authored and Robert Schmidt's avatar Robert Schmidt committed
      7e3b1f5d
    • Robert Schmidt's avatar
      provide stop_L1L2()/restart_L1L2() in oaisim · 7b1afbb0
      Robert Schmidt authored
      the functions are meant to restart the lte-softmodem (lower layers) and are not
      supported in oaisim. They are provided to make oaisim compile.
      7b1afbb0