Optimized handling of monitoring event (MONTE) subscriptions on LTE network

1 . A method comprising:

receiving, by a network exposure function (NEF)/service capability exposure function (SCEF) and from an application server (AS), a trigger message associated with deletion of a subscription;

transmitting, by the NEF/SCEF and to a home subscriber server (HSS), a configuration information request (CIR) message;

receiving, by the NEF/SCEF and from a mobile management entity (MME), an event notification message;

transmitting, by the NEF/SCEF, to the MME, and in response to receiving the event notification message, an error message based on the subscription not existing in the NEF/SCEF; and

transmitting, by the NEF/SCEF and to the HSS, a deletion message utilized by the HSS to delete the subscription.

2 . The method of claim 1 , wherein transmitting the deletion message further comprises:

transmitting, by the NEF/SCEF and to the HSS, the deletion message based on the subscription not being previously deleted in the HSS.

3 . The method of claim 1 , wherein transmitting the deletion message further comprises:

transmitting, by the NEF/SCEF, to the HSS, based on the CIR message not being received by the HSS, and in response to receiving a reporting information request (RIR) message as the event notification message, the deletion message.

4 . The method of claim 1 , wherein receiving the trigger message further comprises:

forwarding, by the NEF/SCEF and to the HSS, a subscription message received from the AS, the subscription message being associated with the subscription not having any expiration; and

receiving the trigger message associated with deletion of the subscription.

5 . The method of claim 1 , wherein receiving the trigger message further comprises:

forwarding, by the NEF/SCEF and to the HSS, a subscription message received from the AS, the subscription message being associated with the subscription having an expiration longer than a threshold expiration; and

receiving the trigger message associated with deletion of the subscription.

6 . The method of claim 1 , wherein receiving the trigger message further comprises:

receiving, by the NEF/SCEF, from the AS, and based on a user equipment (UE) attaching to a network and moving to at least one of a tracking area or a base station, the trigger message.

7 . The method of claim 1 , wherein the CIR message comprises a first CIR message, and

wherein transmitting the deletion message further comprises:

transmitting a second CIR message as the deletion message based on parameter values received from the MME and in the event notification message.

8 . The method of claim 1 , further comprising:

receiving, by the NEF/SCEF and from the HSS, a configuration information answer (CIA) message based on the HSS transmitting a confirmation message to the MME and receiving an answer message from the MME.

9 . The method of claim 1 , wherein receiving the trigger message further comprises:

receiving, by the NEF/SCEF, from the AS, and based on a user equipment (UE) attaching to a long term evolution (LTE) telecommunications network and moving to at least one of a tracking area or a base station, the trigger message.

10 . A network element, comprising:

one or more processors; and

memory storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:

receiving, by a network node and from an application server (AS), a trigger message associated with deletion of a subscription;

transmitting, by the network node and to a home subscriber server (HSS), a configuration message to delete the subscription;

receiving, by the network node and from a mobile management entity (MME), an event notification message; and

transmitting, by the network node and to the HSS, a deletion message utilized by the HSS to delete the subscription.

11 . The network element of claim 10 , wherein transmitting the deletion message further comprises:

transmitting, by the network node, to the MME, and in response to receiving the event notification message, the deletion message based on the subscription not existing in the network node.

12 . The network element of claim 10 , wherein the network node comprises a network exposure function (NEF) or a service capability exposure function (SCEF).

13 . The network element of claim 10 , wherein transmitting the deletion message further comprises:

transmitting, by the network node and to the HSS, the deletion message based on the subscription not being previously deleted in the HSS.

14 . The network element of claim 10 , wherein transmitting the deletion message further comprises:

transmitting, by the network node, to the HSS, based on the configuration message not being received by the HSS, and in response to receiving the event notification message, the deletion message.

15 . The network element of claim 10 , wherein receiving the trigger message further comprises:

forwarding, by the network node and to the HSS, a subscription message received from the AS, the subscription message being associated with the subscription i) not having any expiration, or ii) having an expiration longer than a threshold expiration; and

receiving the trigger message associated with deletion of the subscription.

16 . The network element of claim 10 , wherein receiving the trigger message further comprises:

receiving, by the network node, from the AS, and based on a user equipment (UE) attaching to a network and moving to at least one of a tracking area or a base station, the trigger message.

17 . A system comprising:

one or more processors; and

memory storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:

receiving, by a network node and from an application server (AS), a trigger message associated with deletion of a subscription;

transmitting, by the network node and to a home subscriber server (HSS), a configuration message;

receiving, by the network node and from a mobile management entity (MME), an event notification message; and

transmitting, by the network node and to the HSS, a deletion message utilized by the HSS to delete the subscription.

18 . The system of claim 17 , wherein transmitting the deletion message further comprises:

transmitting, by the network node, to the MME, and in response to receiving the event notification message, the deletion message based on the subscription not existing in the network node.

19 . The system of claim 17 , wherein receiving the trigger message further comprises:

forwarding, by the network node and to the HSS, a subscription message received from the AS, the subscription message being associated with the subscription i) not having any expiration, or ii) having an expiration longer than a threshold expiration; and

receiving the trigger message associated with deletion of the subscription.

20 . The system of claim 17 , the configuration message further comprising a first configuration message, the operations further comprising:

receiving, by the network node and from the HSS, a second configuration message based on the HSS transmitting a confirmation message to the MME and receiving an answer message from the MME.