1 

     2 diagram {

     3 	

     4    LtePdcp -> LteRlc [label="send SDU"]

     5              LteRlc -> LteMacSapProvider [label="ReportBufferStatus ()"] 

     6                        LteMacSapProvider -> LteEnbMac [label="DoReportBufferStatus ()"] 

     7                                             LteEnbMac -> FfMacSchedSapProvider [label="SchedDlRlcBufferReq ()"] 

     8                                                          FfMacSchedSapProvider -> Scheduler [label="DoSchedDlRlcBufferReq ()"]

     9                                                          FfMacSchedSapProvider <-- Scheduler 

    10                                             LteEnbMac <-- FfMacSchedSapProvider 

    11                        LteMacSapProvider <-- LteEnbMac

    12              LteRlc <-- LteMacSapProvider 

    13    LtePdcp <-- LteRlc 

    14    }

    15