• Robert Schmidt's avatar
    Reestablishment hack: free reconfigurationWithSync · c6434c80
    Robert Schmidt authored
    After handover, the last CellGroupConfig received is the one for
    handover, containing a reconfigurationWithSync. Resending this
    CellGroupConfig to the UE after reestablishment would trigger a
    handover. Free the reconfigurationWithSync to have the UE complete
    reestablishment at the current cell.
    
    The CU implementation of reestablishment modifies the CellGroupConfig.
    It should not do this, but does as of now. The specification (38.473 Sec
    8.7) foresees an optional F1 UE context modification procedure (which
    can be used to receive the CellGroupConfig). This should be done instead
    to retrieve the correct CellGroupConfig.
    
    Note that the F1 UE context setup procedure, similar to the UE context
    modification procedure, would also allow to perform reestablishment on a
    DU that is not the original one.
    c6434c80
rrc_gNB.c 118 KB