Management of partially served network slices

A Communication device having a secure element (USIM), said communication device being configured to monitor the management of network slices, said communication device being compliant with at least a technology implementing network slicing using a route selection policy, said communication device being active in a Registration Area of a network of the technology implementing network slicing, said Registration Area comprising Tracking Areas, said communication device being configured to:

• request a given slice at the network, to receive from the network a slice status and slice information for the given slice comprising a list of Tracking Areas where the given slice is supported in the current Registration Area;
• in answer to a polling request from the secure element or in an event-based notification, sending a “partially allowed” or “partially rejected” slice status and the list of Tracking Areas where the given slice is supported to the secure element.

A Secure element (USIM) installed in a communication device, wherein the communication device is configured to monitor the management of network slices with the secure element (USIM), said communication device is compliant with at least a technology implementing network slicing using a route selection policy, said secure element is configured to:

• receive a partially allowed/rejected slice status and slice information comprising a list of Tracking Areas where the given slice is supported in the current Registration Area when the communication device is active in a Registration Area of a network of the technology implementing network slicing, said Registration Area comprising Tracking Areas.