# US 12,772,155 B2 · Management of partially served network slices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,772,155 B2 - Document ID: US12772155B2 - Status: Granted - Kind: B2 - Application number: 18/433,650 - Filed: 2024-02-06 - Published: 2025-08-07 - Granted: 2026-10-20 - Earliest claimed: 2024-02-06 - Assignees: Thales Dis France SAS - Applicants: Thales Dis France SAS - Inventors: Hervé Collet; Alain Raguenet - Web page: https://patentgrep.com/patent/US12772155B2 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04W 12/40: Security arrangements using identity modules - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Provided is a monitor for management of network slices by a communication device (ME) having a secure element (USIM), said communication device being compliant with at least a technology implementing network slicing using a route selection policy, said method comprising the steps of, for the communication device active in a Registration Area of a network of the technology implementing network slicing, said Registration Area comprising Tracking Areas: requesting a given slice at the network; receiving 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; and, in answer to a polling request from the secure element or in an event-based notification, sending a partially served slice status and the list of Tracking Areas where the given slice is supported to the secure element. ## Claims ### Claim 1 A method to monitor the management of network slices by a communication device having a secure element (USIM), said communication device being compliant with at least a technology implementing network slicing using a route selection policy, said method comprising the steps of, for the communication device active in a Registration Area of a network of the technology implementing network slicing, said Registration Area comprising Tracking Areas: requesting a given slice at the network; receiving 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; and, in answer to a polling request from the secure element or in an event-based notification, sending a partially supported slice status and the list of Tracking Areas where the given slice is supported to the secure element. ### Claim 2 (depends on 1) The method according to claim 1, wherein, the communication device further supporting a USIM application toolkit framework implementing event download envelops, said method comprises a preliminary step, for the secure element, to register to a slice event defined in the USIM application toolkit framework supported by the communication device, the event-based notification using an event download envelop. ### Claim 3 (depends on 1) The method according to claim 1, further comprising the step, for the secure element, to record the list of Tracking Areas where the given slice is supported in the Registration Area where the communication device is registered, said method further comprising the step of, for the communication device, providing an information on the currently used Tracking Area to the secure element, and the step, for the secure element, based on the list of Tracking Areas where the given slice is supported and on an information of the currently used Tracking Area, when the currently used Tracking Area is in the list, performing at least one process associated to the given slice. ### Claim 4 (depends on 1) The method according to claim 1, said method comprising the step of, for the secure element, building, a Tracking Area map where the given slice is supported or not supported. ### Claim 5 (depends on 1) The method according to claim 1, wherein the list of Tracking Areas where the given slice is supported comprises Tracking Areas of the Registration Area where the communication device is registered. ### Claim 6 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. ### Claim 7 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. ### Claim 8 (depends on 7) The secure element according to claim 7, wherein, the communication device further supporting a USIM application toolkit framework implementing event download envelops, the secure element is further configured to register to a slice event defined in the USIM application toolkit framework supported by the communication device, the event-based notification using an event download envelop. ### Claim 9 (depends on 7) The secure element according to claim 7, being further configured to record the list of Tracking Areas where the given slice is supported in the Registration Area where the communication device is registered, and, when the communication device provides an information on the currently used Tracking Area to the secure element, to perform at least one process associated to the given slice based on the list of Tracking Areas where the given slice is supported and on an information of the currently used Tracking Area, when the currently used Tracking Area is in the list. ### Claim 10 (depends on 7) The secure element according to claim 7, being further configured to build a Tracking Area map where the given slice is supported and not supported.