Merge branch 'TS28.541_CR0577_Add_Stage3_YANG_solutions_to_support_D-LBO' into 'balazs-r17-139'

module _3gpp-nr-nrm-dlbofunction {

  yang-version 1.1;

  namespace "urn:3gpp:sa5:_3gpp-nr-nrm-dlbofunction";

  prefix "dlbof3gpp";

  import _3gpp-common-subnetwork { prefix subnet3gpp; }

  import _3gpp-common-top { prefix top3gpp; }

  import _3gpp-nr-nrm-gnbcucpfunction { prefix gnbcucp3gpp; }

  import _3gpp-common-managed-element { prefix me3gpp; }

  import _3gpp-nr-nrm-nrcellcu { prefix nrcellcu3gpp; }

  organization "3GPP SA5";

  contact "https://www.3gpp.org/DynaReport/TSG-WG--S5--officials.htm?Itemid=464";

  description "Defines the YANG mapping of the DLBOFunction 

    Information Object Class (IOC) that is part of the NR Network Resource 

    Model (NRM).";

  reference "3GPP TS 28.541 5G Network Resource Model (NRM)";

  revision 2021-10-22 { reference "CR-0577"; }  

  feature DLBOUnderGNBCUCPFunction {

    description "The DLBOFunction shall be available under

      GNBCUCPFunction";

  }

  feature DLBOUnderManagedElement {

    description "The DLBOFunction shall be available under

      ManagedElement";

  }

  feature DLBOUnderSubNetwork {

    description "The DLBOFunction shall be available under

      SubNetwork";

  }

  grouping DLBOFunctionGrp {

    description "Represents the DLBOFunction IOC.";

    leaf dlboControl {

      description "This attribute determines whether the LBO function is 

        enabled or disabled.";

      type boolean;

    }

    leaf maximumDeviationHoTrigger {

      description "This parameter defines the maximum allowed absolute 

        deviation of the Handover Trigger, from the default point of 

        operation.";

        type int32 { range "-20..20"; }

        units "0.5";

    }

    leaf minimumTimeBetweenHoTriggerChange {

      description "This parameter defines the minimum allowed time interval 

        between two Handover Trigger change performed by MRO. This is used 

        to control the stability and convergence of the algorithm.";

        type int32 { range "0..604800"; }

        units "1";

    }

  }

  grouping DLBOFunctionSubtree {

    list DLBOFunction {

      description "This IOC contains attributes to support the D-SON function 

        of LBO.

        In the case where multiple DLBO MOIs exist at different levels of the 

        containment tree, the DLBO MOI at the lower level overrides the DLBO

        MOIs at higher level(s) of the same containment tree.";

      reference "clause 7.1.2 in TS 28.313";

      key id;   

      uses top3gpp:Top_Grp;

      container attributes {

        uses DLBOFunctionGrp;

      }      

    }

  }

  augment "/me3gpp:ManagedElement/gnbcucp3gpp:GNBCUCPFunction/"+

      "nrcellcu3gpp:NRCellCU" {

    if-feature DLBOUnderGNBCUCPFunction;

    uses DLBOFunctionSubtree;

  }

  augment /me3gpp:ManagedElement {

    if-feature DLBOUnderManagedElement;

    uses DLBOFunctionSubtree;

  }

  augment /subnet3gpp:SubNetwork {

    if-feature DLBOUnderSubNetwork;

    uses DLBOFunctionSubtree;

  }

}

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