17919630. Technique for Maintaining a Subscription of a Subscriber NF simplified abstract (Telefonaktiebolaget LM Ericsson (publ))

Technique for Maintaining a Subscription of a Subscriber NF

Organization Name

Telefonaktiebolaget LM Ericsson (publ)

Inventor(s)

[[:Category:Miguel Angel Puente Pesta�a of Madrid (ES)|Miguel Angel Puente Pesta�a of Madrid (ES)]][[Category:Miguel Angel Puente Pesta�a of Madrid (ES)]]

Ulf Mattsson of Kungsbacka (SE)

Maria Belen Pancorbo Marcos of Madrid (ES)

Miguel Angel Garcia Martin of Pozuelo de Alarcon (ES)

Technique for Maintaining a Subscription of a Subscriber NF - A simplified explanation of the abstract

This abstract first appeared for US patent application 17919630 titled 'Technique for Maintaining a Subscription of a Subscriber NF

Simplified Explanation

The abstract describes a technique for maintaining a subscription of a subscriber Network Function (NF) in a telecommunication system. This technique allows the NF to receive events related to a User Equipment (UE) from a serving NF. The serving NF serves the UE and there may be multiple instances of the serving NF.

• The technique involves the first instance of the serving NF receiving a subscription request from the subscriber NF.
• The subscription request includes a persistence indication, indicating that the subscription is to be maintained.
• The first instance of the serving NF generates subscription restoration information, which enables the restoration of the subscription in case it ceases serving the UE.
• The first instance of the serving NF stores the subscription restoration information in a data storage function of the telecommunication system, associated with the UE.
• If the first instance of the serving NF ceases serving the UE, the second instance of the serving NF can use the stored subscription restoration information to restore the subscription.

Potential applications of this technology:

• Telecommunication systems that involve multiple instances of serving NFs can benefit from this technique to ensure uninterrupted subscription services for UEs.
• It can be applied in various network functions, such as mobility management, session management, or policy control, to maintain subscriptions and handle seamless handovers between NF instances.

Problems solved by this technology:

• Ensures continuity of subscription services for UEs even if the serving NF ceases serving them.
• Eliminates the need for UEs to re-establish subscriptions when there is a change in the serving NF instance.
• Enables seamless handovers between NF instances without disrupting the subscription services.

Benefits of this technology:

• Improved reliability and continuity of subscription services for UEs.
• Enhanced efficiency in managing subscriptions in telecommunication systems with multiple NF instances.
• Seamless handovers between NF instances without service interruptions for UEs.

Original Abstract Submitted

A technique for maintaining a subscription of a subscriber Network Function, NF, for receiving events related to a User Equipment, UE, from a serving NF in a telecommunication system is disclosed, wherein the UE is served by a first instance of the serving NF. A method implementation of the technique is performed by the first instance of the serving NF and comprises receiving (S) a subscription request from the subscriber NF, the subscription request including a persistence indication indicating that the subscription is to be maintained, triggering (S) generating subscription restoration information enabling restoration of the subscription in case the first instance of the serving NF ceases serving the UE, and triggering (S) storing the subscription restoration information in a data storage function of the telecommunication system in association with the UE, wherein the subscription restoration information is to be used by a second instance of the serving NF for restoring the subscription if the first instance of the serving NF ceases serving the UE.