NED File src/simu5g/stack/d2d/rrc/ConnectionControlEnbD2D.ned

Name	Type	Description
ConnectionControlEnbD2D	simple module	D2D-capable variant of the ConnectionControlEnb. It adds the sidelink bearers of the UEs the base station serves: a D2D unicast or multicast flow gets a bearer with a fixed transitional configuration (RLC UM on LCG 3), outside the bearer definition system; a multicast bearer's TX leg is installed at the sender and an RX leg at each group member, and a node joining a group later gets the RX legs of the group's known senders. The sidelink node pairs' DRB identities and the established multicast flows are kept network-wide in the D2dBinder, since a sidelink bearer's ends are UEs whose serving base stations may differ and change.

Source code

//
//                  Simu5G
//
// Authors: Andras Varga (OpenSim Ltd)
//
// This file is part of a software released under the license included in file
// "license.pdf". Please read LICENSE and README files before using it.
// The above files and the present reference are part of the software itself,
// and cannot be removed from it.
//

package simu5g.stack.d2d.rrc;

import simu5g.stack.rrc.ConnectionControlEnb;

//
// D2D-capable variant of the ~ConnectionControlEnb. It adds the sidelink bearers of
// the UEs the base station serves: a D2D unicast or multicast flow gets a bearer
// with a fixed transitional configuration (RLC UM on LCG 3), outside the bearer
// definition system; a multicast bearer's TX leg is installed at the sender and an
// RX leg at each group member, and a node joining a group later gets the RX legs of
// the group's known senders. The sidelink node pairs' DRB identities and the
// established multicast flows are kept network-wide in the ~D2dBinder, since a
// sidelink bearer's ends are UEs whose serving base stations may differ and change.
//
// It also handles the D2D side of the handovers of the D2D-capable UE legs it
// serves (a leg reports the capability when it connects, and a handover carries it
// with the context): before commanding a leg's handover, the leg's D2D flows are
// switched back to infrastructure mode through the node's ~D2dModeSelectionBase;
// a leg's D2D direction is attached at the node's AMC when it arrives, by handover
// or by attaching during the run, and a D2D mode re-selection follows at the end
// of that instant; and it is detached when the leg leaves.
//
// Selected via 'rrc.connectionControl.typename' by the D2D-capable base station NICs.
//
simple ConnectionControlEnbD2D extends ConnectionControlEnb
{
    parameters:
        @class(ConnectionControlEnbD2D);
        string d2dBinderModule = default("d2dBinder");  // The network's ~D2dBinder, which holds the D2D state
        string d2dModeSelectionModule = default("^.d2dModeSelection");  // The node's D2D mode selection; none if the module does not exist
}