LTE (TS 36.322) transmission side of the Unacknowledged Mode (UM) of the RLC layer: FI framing + concatenation of multiple SDUs per PDU, one sequence number per PDU. Shares the common RlcUmTxEntityBase shell (MAC plumbing, D2D mode-switch machinery) with the NR profile NrRlcUmTxEntity. Bound by default inside the LteRlcUmEntity compound.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Known subclasses

Name	Type	Description
LteRlcUmTxEntityD2D	simple module	D2D-capable LTE (TS 36.322) RLC UM transmitting entity: LteRlcUmTxEntity plus the D2D mode-switch machinery (SDU holding buffer, drain notification to the D2DModeController, sequence-number reset on the newly selected mode).

Parameters

Name	Type	Default value	Description
macModule	string	"^.^.mac"	Set by the enclosing RlcUmEntityBase compound (per leg)
queueSize	int	2MiB	RLC TX entity SDU queue size (0: unlimited)

Properties

Name	Value	Description
dynamic	true
display	i=block/layer

Gates

Name	Direction	Size	Description
in	input		SDUs from the PDCP layer (direct per-DRB connection, not via a mux)
macIn	input		MAC SDU requests, via the RlcMux
out	output		PDUs and new-data notifications to MAC, via the RlcMux

Signals

Name	Type	Unit	Description
rlcPduCreated

Source code

//
// LTE (TS 36.322) transmission side of the Unacknowledged Mode (UM) of the RLC
// layer: FI framing + concatenation of multiple SDUs per PDU, one sequence number
// per PDU. Shares the common RlcUmTxEntityBase shell (MAC plumbing, D2D
// mode-switch machinery) with the NR profile ~NrRlcUmTxEntity. Bound by default
// inside the ~LteRlcUmEntity compound.
//
simple LteRlcUmTxEntity like simu5g.stack.rlc.IRlcTxEntity
{
    parameters:
        @dynamic(true);
        @display("i=block/layer");
        string macModule = default("^.^.mac");  // Set by the enclosing RlcUmEntityBase compound (per leg)
        int queueSize @unit(B) = default(2MiB);          // RLC TX entity SDU queue size (0: unlimited)
        @signal[rlcPduCreated];

    gates:
        input in;       // SDUs from the PDCP layer (direct per-DRB connection, not via a mux)
        input macIn;    // MAC SDU requests, via the RlcMux
        output out;     // PDUs and new-data notifications to MAC, via the RlcMux
}

File: src/simu5g/stack/rlc/um/LteRlcUmTxEntity.ned

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