This creatable/settable object configures the requested source statistics descriptor for the profile's QoS parameters, describing the statistical characteristics (such as speech-like) of the traffic source to help the network optimize handling. An admin sets this to give the network additional information about the nature of the profile's traffic pattern, which can influence how efficiently the network allocates radio resources to it. For example, a profile expected to carry speech-like traffic patterns would request the corresponding source statistics descriptor so the network can apply appropriate resource-allocation assumptions.