Abstract: The invention relates to a communication network which is configured to enable instantiation of network slices which represent virtual networks. The invention further relates to a content application server (CAS) for providing an application service via a network slice to at least one user equipment (UE). A network function (SREF) is provided which on the one hand may have access to one or more slice management network functions (CSMF, NSMF, NSSMF) and on the other hand may be accessible to the CAS. The network function (SREF) may abstract the properties of the network slice using a data structure representing a slice object and expose these abstracted properties to the CAS by providing access to the slice object. The slice object may comprise modifiable properties which represent modifiable properties of the corresponding network slice.

Abstract: The invention relates to a communication network which is configured to enable instantiation of network slices which represent virtual networks. The invention further relates to a content application server (CAS) for providing an application service via a network slice to at least one user equipment (UE). A network function (SREF) is provided which on the one hand may have access to one or more slice management network functions (CSMF, NSMF, NSSMF) and on the other hand may be accessible to the CAS. The network function (SREF) may abstract the properties of the network slice using a data structure representing a slice object and expose these abstracted properties to the CAS by providing access to the slice object. The slice object may comprise modifiable properties which represent modifiable properties of the corresponding network slice.

Abstract: Signal data from a sensor is stored in a storage device. The signal data is accessed by means access request that includes an identification of a base signal that may indicate the signal data from said sensor and an identification of a derivation to obtain a requested signal from the base signal. An interface extracts the identifications of the base signal the derivation. The interface tests whether stored signal data obtained from the base signal by said derivation is available in the storage device, and if so it returns the stored signal data in response to the access request via the interface. If not signal data is derived from further stored signal data by at least one signal processing operation identified in the derivation.

Abstract: Signal data from a sensor is stored in a storage device. The signal data is accessed by means access request that includes an identification of a base signal that may indicate the signal data from said sensor and an identification of a derivation to obtain a requested signal from the base signal. An interface extracts the identifications of the base signal the derivation. The interface tests whether stored signal data obtained from the base signal by said derivation is available in the storage device, and if so it returns the stored signal data in response to the access request via the interface. If not signal data is derived from further stored signal data by at least one signal processing operation identified in the derivation.