This application is to be instantiated on the UE side. It requires that a DeviceApp is also instantiated at the UE. This module requests the DeviceApp to instantiate a MECResponseApp in the MEC system. Once the peer MEC application is up and running, this module sends periodic messages to the MEC application and waits for a response. It collects metrics such as round-trip time.

Inheritance diagram

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

Parameters

Name	Type	Default value	Description
localPort	int	4000	connection infos
deviceAppPort	int	4000	port of the DeviceApp
deviceAppAddress	string		ipAddress of the DeviceApp
requestPacketSize	int	10B
tos	int	-1	if not -1, set the Type Of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value
period	double	0.2s	autoscheduling infos
startTime	double	0s
stopTime	double	120s
mecAppName	string	"MecResponseApp"	stats

Properties

Name	Value	Description
display	i=block/source

Gates

Name	Direction	Size	Description
socketOut	output
socketIn	input

Signals

Name	Type	Unit	Description
serviceResponseTime
responseTime
downLinkTime
upLinkTime
processingTime

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode	Description
serviceResponseTime	serviceResponseTime	serviceResponseTime	stats, mean, vector	s
responseTime	responseTime	responseTime	stats, mean, vector	s
downLinkTime	downLinkTime	downLinkTime	stats, mean, vector	s
upLinkTime	upLinkTime	upLinkTime	stats, mean, vector	s
processingTime	processingTime	processingTime	stats, mean, vector	s

Source code

//
// This application is to be instantiated on the UE side. It requires that a ~DeviceApp is
// also instantiated at the UE. This module requests the ~DeviceApp to instantiate a
// ~MECResponseApp in the MEC system.
// Once the peer MEC application is up and running, this module sends periodic messages to
// the MEC application and waits for a response. It collects metrics such as round-trip time.
//
simple UERequestApp like IApp
{
    parameters:
        @display("i=block/source");

        //connection infos
        int localPort = default(4000);
        int deviceAppPort = default(4000); // port of the DeviceApp
        string deviceAppAddress; // ipAddress of the DeviceApp

        int requestPacketSize @unit(B) = default(10B);

        int tos = default(-1); // if not -1, set the Type Of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value

        //autoscheduling infos
        double period @unit("s") = default(0.2s);
        double startTime @unit("s") = default(0s);
        double stopTime @unit("s") = default(120s);

        string mecAppName = default("MecResponseApp");

        // stats

        @signal[responseTime];
        @statistic[responseTime](title="responseTime"; unit="s"; source="responseTime"; record=stats,mean,vector);

        @signal[processingTime];
        @statistic[processingTime](title="processingTime"; unit="s"; source="processingTime"; record=stats,mean,vector);

        @signal[serviceResponseTime];
        @statistic[serviceResponseTime](title="serviceResponseTime"; unit="s"; source="serviceResponseTime"; record=stats,mean,vector);

        @signal[upLinkTime];
        @statistic[upLinkTime](title="upLinkTime"; unit="s"; source="upLinkTime"; record=stats,mean,vector);

        @signal[downLinkTime];
        @statistic[downLinkTime](title="downLinkTime"; unit="s"; source="downLinkTime"; record=stats,mean,vector);



    gates:
        output socketOut;
        input socketIn;
}

File: src/apps/mec/MecRequestResponseApp/UERequestApp.ned

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