This is the Lte Downlink Feedback Generator. It manages periodic and aperiodic channel sensing and feedback transmission.

Used in compound modules

Name	Type	Description
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.
NRNicUe	compound module	This module defines a User Equipment (UE) network interface card that supports both LTE and NR (New Radio) technologies. It extends the LteNicUeD2D module by adding additional submodules and parameters to support NR-specific functionalities.

Used in

Name	Type	Description
TestFeedback	network	(no description)

Parameters

Name	Type	Default value	Description
feedbackType	string	"ALLBANDS"	can be ALLBANDS, PREFERRED, WIDEBAND
rbAllocationType	string	"localized"	resource allocation type ("distributed" or "localized")
fbPeriod	int	6tti	period for Periodic feedback in TTI
fbDelay	int	1tti	time interval between sensing and transmission in TTI
usePeriodic	bool	true	true if we want to use also periodic feedback
initialTxMode	string	"SINGLE_ANTENNA_PORT0"	initial txMode (see LteCommon.h) SINGLE_ANTENNA_PORT0,SINGLE_ANTENNA_PORT5,TRANSMIT_DIVERSITY,OL_SPATIAL_MULTIPLEXING, CL_SPATIAL_MULTIPLEXING,MULTI_USER,
feedbackGeneratorType	string	"IDEAL"	Type of generator: IDEAL, REAL, DAS_AWARE IDEAL: feedback generator reports feedback for each txmode and for each rus REAL: feedback generator reports feedback only for the last txmode used but for each rus DAS_AWARE: feedback generator reports feedback only for the last txmode used and only for rus in Antenna set
binderModule	string	"binder"
phyModule	string	"^.phy"

Properties

Name	Value	Description
display	i=block/cogwheel

Source code

//
// This is the Lte Downlink Feedback Generator.
// It manages periodic and aperiodic channel sensing and
// feedback transmission.
//
simple LteDlFeedbackGenerator
{
    parameters:
        @display("i=block/cogwheel");

        // can be ALLBANDS, PREFERRED, WIDEBAND
        string feedbackType @enum(ALLBANDS,PREFERRED,WIDEBAND) = default("ALLBANDS");

        // resource allocation type ("distributed" or "localized")
        string rbAllocationType @enum(distributed,localized) = default("localized");

        // period for Periodic feedback in TTI
        int fbPeriod @unit(tti) = default(6tti);

        // time interval between sensing and transmission in TTI
        int fbDelay @unit(tti) = default(1tti);

        // true if we want to use also periodic feedback
        bool usePeriodic = default(true);

        // initial txMode (see LteCommon.h)
        //     SINGLE_ANTENNA_PORT0,SINGLE_ANTENNA_PORT5,TRANSMIT_DIVERSITY,OL_SPATIAL_MULTIPLEXING,
        // CL_SPATIAL_MULTIPLEXING,MULTI_USER,
        string initialTxMode @enum(SINGLE_ANTENNA_PORT0,SINGLE_ANTENNA_PORT5,TRANSMIT_DIVERSITY,OL_SPATIAL_MULTIPLEXING,CL_SPATIAL_MULTIPLEXING,MULTI_USER) = default("SINGLE_ANTENNA_PORT0");

        // Feedback Computation (warning: this should be compatible with
        // the analogue model and Decider.
        // xml feedbackComputation;

        //Type of generator: IDEAL, REAL, DAS_AWARE
        // IDEAL: feedback generator reports feedback for each txmode and for each rus
        // REAL: feedback generator reports feedback only for the last txmode used but for each rus
        // DAS_AWARE: feedback generator reports feedback only for the last txmode used and only for rus in Antenna set
        string feedbackGeneratorType @enum(IDEAL,REAL,DAS_AWARE) = default("IDEAL");

        string binderModule = default("binder");
        string phyModule = default("^.phy");
}

File: src/stack/phy/feedback/LteDlFeedbackGenerator.ned

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