PhyEnbD2D¶

simple module PhyEnbD2D

Extends the PHY functionalities on the eNodeB side to support device-to-device (D2D) communications. Specifically, it enables the computation of Channel Status Information (CSI) related to the D2D link between two UEs, which still needs to be stored at the eNodeB for scheduling purposes.

Inheritance diagram¶

Extends¶

Name	Type	Description
PhyEnb	simple module	Extends the PhyBase module by providing the specific PHY functions on the eNodeB side. It is responsible for checking if a frame received on the air interface originates from a User Equipment (UE) connected to the eNB itself, and it provides the functions necessary to compute the Channel Status Information (CSI) for the UEs connected to it.

Parameters¶

Name	Type	Default value	Description
isNr	bool	false	True for the NR leg (set by NrNicUe/NrNicEnb on their PHY submodule)
macNodeId	int		MacNodeId of the stack leg this PHY belongs to (set by the NIC)
ueTxPower	double	26dBm
eNodeBTxPower	double	46dBm
microTxPower	double	30dBm
txDirection	string	“OMNI”
txAngle	double	0deg
binderModule	string	“binder”
channelModelModule	string	“^.channelModel[0]”	Set to “^.nrChannelModel[0]” on an NR leg, see NrNicUe
enableHandover	bool	false	Marks this eNB as a handover target: its beacons are used by UEs for handover feasibility assessment. Requires enableBeacons=true (the default when handover is on); the module errors out at initialization if beacons are disabled while handover is enabled.
enableBeacons	bool	enableHandover	Enables broadcasting periodic beacons (at cellInfo.beaconInterval). Beacons are the measurement signal UEs use both for handover feasibility assessment and for radio link monitoring (RLF detection), decoupled from enableHandover so radio link monitoring can run without handover. Defaults to enableHandover (beacons flow exactly when handover is enabled). cellInfo.beaconInterval must be positive: a zero/negative interval is an error – switch beacons off with enableBeacons=false.
targetBler	double	0.001
d2dBinderModule	string	“d2dBinder”	The network’s D2dBinder, which holds the D2D state
enableD2DCqiReporting	bool	true

Properties¶

Name	Value	Description
class	PhyEnbD2D
display	i=block/wrxtx

Gates¶

Name	Direction	Description
upperGateIn	input	From upper layer
upperGateOut	output	To upper layer
radioIn	input	Gate to receive message via sendDirect

Source code¶

//
// Extends the PHY functionalities on the eNodeB side to support device-to-device (D2D)
// communications. Specifically, it enables the computation of Channel Status Information (CSI) related
// to the D2D link between two UEs, which still needs to be stored at the eNodeB for scheduling purposes.
//
simple PhyEnbD2D extends PhyEnb
{
    parameters:
        @class("PhyEnbD2D");
        string d2dBinderModule = default("d2dBinder");  // The network's ~D2dBinder, which holds the D2D state
        bool enableD2DCqiReporting = default(true);
}

File: src/simu5g/stack/d2d/phy/PhyEnbD2D.ned