Fuente: WIPO "sustainability" A network node (100) and a service consumer (300) provide enhanced quality-of-service (QoS) sustainability analytics for a client device (600). According to examples of the new analytics filter information related to speed, device and subscription information is introduced. Upon a request from the service consumer (300) for QoS sustainability analytics for a client device (600) indicating at least one of the new analytics filter information, the network node (100) obtains at least one of speed, device, and subscription information and determines QoS sustainability analytics for the client device (600) based on the obtained information. Thereby, both the context and information granularity of the QoS sustainability analytics can be enhanced and QoS sustainability analytics valid for client devices (600) with specific characteristics and/or subscriptions can be provided. Furthermore, it also relates to corresponding methods and a computer program.