ICellularNic

module interface

Interface for the 3GPP Stack.

Inheritance diagram

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

Implemented by

Name	Type	Description
LteNicBase	compound module	The LteNicBase module serves as the foundational building block for LTE networking in Simu5G. It integrates protocols for LTE communication, including PDCP, RLC, MAC, and PHY layers. This base module allows higher-level modules, such as User Equipment (UE) and eNodeB (evolved Node B), to configure and utilize these layers according to their specific requirements.
LteNicEnb	compound module	The LteNicEnb module is a network interface that provides LTE connectivity within an eNodeB. It implements the data and signaling planes of the LTE stack, which includes the PDCP, RLC, MAC, and PHY layers. The parameters and submodules allow customization of the eNodeB's behavior, including whether it supports D2D communication, CoMP (Coordinated MultiPoint), or dual connectivity.
LteNicEnbD2D	compound module	The LteNicEnbD2D module represents an LTE eNodeB network interface with support for D2D (Device-to-Device) communications. It extends the basic LteNicEnb module to manage D2D-capable UEs (User Equipments). A D2D mode selection algorithm can be specified via the rrc.d2dModeSelection submodule's typename.
LteNicUe	compound module	The LteNicUe module is a network interface that provides LTE connectivity within a UE (User Equipment). It implements the data and signaling planes of the LTE stack, which includes PDCP, RLC, MAC, and PHY layers. The parameters and submodules allow customization of the UE's behavior.
LteNicUeD2D	compound module	Represents a Device-to-Device (D2D) capable User Equipment (UE) network interface. It extends the basic LTE UE functionality by adding D2D communication capabilities, allowing direct communication between UEs without the need to route traffic through the base station.
NrNicEnb	compound module	The NrNicEnb module serves as a network interface that provides 5G connectivity within a gNodeB. It implements the data and signaling plane of the NR (New Radio) stack, which encompasses the PDCP, RLC, MAC, and PHY layers. The parameters and submodules facilitate the customization of the gNodeB's behavior, including its support for CoMP (Coordinated MultiPoint) or dual connectivity. D2D support is added by the NrNicEnbD2D subtype.
NrNicEnbD2D	compound module	Device-to-Device (D2D) capable NR gNodeB network interface. It extends NrNicEnb by swapping in the D2D-capable NR MAC leaf and the D2D-capable eNB PHY, and by enabling the D2D mode controller and mode selection. It is the NR counterpart of LteNicEnbD2D.
NrNicUe	compound module	Defines a User Equipment (UE) network interface card that supports both LTE and NR (New Radio) technologies. It extends the LteNicUe module by adding additional submodules and parameters to support NR-specific functionalities. D2D support is added by the NrNicUeD2D subtype.
NrNicUeD2D	compound module	Device-to-Device (D2D) capable NR User Equipment network interface. It extends NrNicUe by swapping in the D2D-capable NR MAC/PHY leaves and enabling the D2D mode controller, allowing direct UE-to-UE communication without routing traffic through the gNodeB. It is the NR counterpart of LteNicUeD2D.

Used in compound modules

Name	Type	Description
eNodeB	compound module	Models an evolved Node B (eNB) of a 4G LTE network. It is a specialized device equipped with a Network Interface Card (NIC) that enables communication with the LteUe devices connected to it. It serves as an access point that routes packets between the UEs and the 4G Core Network. Packets arriving from the UEs are tunneled to the appropriate next hop in the core network (e.g., the PDN Gateway, PGW) using the GPRS Tunneling Protocol (GTP). Conversely, packets received from the core network are detunneled and sent to the appropriate destination UE. In addition to the 4G NIC, this compound module includes a configurable number of wired interfaces to connect with routers of the core network or directly to the PgwStandard module, which serves as the IP module to perform forwarding, and the UserPlaneRelay that relays between the NIC and the GTP tunnels: its TrafficFlowFilter classifies incoming packets and determines the next hop, and its GtpUser handles GTP (de)tunneling. Furthermore, it features a configurable number of LteX2App modules to facilitate peer-to-peer communications with other eNodeBs within the same LTE network.

Known subclasses

Name	Type	Description
IUeCellularNic	module interface	Interface for the 3GPP stack of a UE: the parts of the contract that only a UE's NIC has.

Extends

Name	Type	Description
IWirelessInterface	module interface	Interface for wireless network interfaces.

Parameters

Name	Type	Default value	Description
nodeType	string

Properties

Name	Value	Description
display	i=block/ifcard
networkInterface

Source code

//
// Interface for the 3GPP Stack.
//
moduleinterface ICellularNic extends IWirelessInterface
{
    parameters:
        @display("i=block/ifcard");
        string nodeType;
        @networkInterface;
    gates:
        inout x2[] @loose;     // Optional X2 manager
        input nrRadioIn @loose;        // For NR support
}

File: src/simu5g/stack/ICellularNic.ned