LtePdcpTxEntity

simple module

Handles operations related to the LTE PDCP (Packet Data Convergence Protocol) layer on the transmitting side of a specific connection. This module manages the creation, sequencing, header compression, and metadata association for PDCP PDUs before they are passed down to the RLC layer.

Inheritance diagram

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

Known subclasses

Name	Type	Description
NrPdcpTxEntity	simple module	Handles the operations related to the NR PDCP (Packet Data Convergence Protocol) layer at the transmitting side of a specific connection. It extends the LtePdcpTxEntity module with the NR flavor of the per-SDU statistics (pdcpSduSentNr) and the NR-leg id mapping of a single-leg NR bearer. On a multi-leg bearer, leg dispatch, id mapping and per-leg statistics are handled by the enclosing compound's splitter instead (see PdcpEntityBase).

Parameters

Name	Type	Default value	Description
binderModule	string	"binder"
emitPerSduSignals	bool	true	Cleared by a PdcpEntityBase with a splitter: the splitter emits the per-leg statistics
headerCompressedSize	int	-1B	Header compressed size in bytes (-1B = compression disabled)
rlcMode	string	"UM"	RLC mode of this bearer, pushed by RRC; determines the PDCP header size

Properties

Name	Value	Description
dynamic	true
display	i=block/layer

Gates

Name	Direction	Size	Description
in	input
out	output

Signals

Name	Type	Unit	Description
receivedPacketFromUpperLayer
sentPacketToLowerLayer
pdcpSduSent

Source code

//
// Handles operations related to the LTE PDCP (Packet Data Convergence Protocol)
// layer on the transmitting side of a specific connection. This module manages the creation,
// sequencing, header compression, and metadata association for PDCP PDUs before they are passed
// down to the RLC layer.
//
simple LtePdcpTxEntity like IPdcpTxEntity
{
    parameters:
        @dynamic(true);
        @display("i=block/layer");
        @signal[receivedPacketFromUpperLayer];
        @signal[sentPacketToLowerLayer];
        @signal[pdcpSduSent];
        string binderModule = default("binder");
        bool emitPerSduSignals = default(true);              // Cleared by a PdcpEntityBase with a splitter: the splitter emits the per-leg statistics
        int headerCompressedSize @unit(B) = default(-1B);    // Header compressed size in bytes (-1B = compression disabled)
        string rlcMode @enum(TM,UM,AM) = default("UM");      // RLC mode of this bearer, pushed by RRC; determines the PDCP header size

    gates:
        input in;
        output out;
}

File: src/simu5g/stack/pdcp/LtePdcpTxEntity.ned