QoS Measurement

A method performed by a computer-implemented apparatus that is configured as a first network function implementing a Service Enabler Architecture Layer (SEAL) Data Delivery (DD) server, the method comprising:

• transmitting, to a Vertical Application Layer (VAL) User Equipment (UE), a subscription message for requesting reporting of a transmission quality measurement for VAL UE traffic, wherein the VAL UE includes a first functional component implementing a SEALDD client;
• and
• receiving, from the VAL UE, a notification message for providing reporting of a plurality of measurement results of the transmission quality measurement.

A method performed by a Vertical Application Layer (VAL) User Equipment (UE) including a first functional component implementing a Service Enabler Architecture Layer (SEAL) Data Delivery (DD) client, the method comprising:

• receiving, from a network function implementing a SEALDD server or a second functional component within the VAL UE implementing a VAL client, a subscription message for requesting reporting of a transmission quality measurement for VAL UE traffic;
• and
• transmitting a notification message for providing reporting of a plurality of measurement results of the transmission quality measurement.