Transferring monitoring event information during a mobility procedure

A method for transferring monitoring event information during a mobility procedure, the method comprising:

• at a new Mobility Management Entity, MME:
• sending, to an old MME, a mobility related request;
• receiving, from the old MME, a response to the mobility related request, the response comprising at least one of:
• an indication that the new MME should notify a Service Capability Exposure Function, SCEF, when the UE becomes reachable;
• and/or
• an indication that the new MME should notify the SCEF when the UE enters IDLE state.

An old Mobility Management Entity, MME configured to operatively transfer monitoring event information during a mobility procedure, the old MME comprising:

• one or more processors;
• and
• memory storing instructions executable by the one or more processors whereby the old MME is operable to:
• receive subscription information indicating that a Service Capability Exposure Function, SCEF, has subscribed to get notification when there is a data delivery failure involving a UE followed by the UE becoming reachable;
• detect a data delivery failure involving the UE, and, in response to detecting the data delivery failure, setting a flag to indicate that a data delivery failure involving the UE has occurred;
• receive, from a new MME serving the UE, a mobility related request;
• send, to the new MME, a response to the mobility related request, the response comprising at least one of:
• an indication that the new MME should notify the SCEF when the UE becomes reachable;
• and/or
• an indication that the new MME should notify the SCEF when the UE enters IDLE state.

A new Mobility Management Entity, MME, configured to operatively serve a User Equipment, UE, and to operatively transfer monitoring event information during a mobility procedure, the new MME comprising:

• one or more processors;
• and
• memory storing instructions executable by the one or more processors whereby the new MME is operable to:
• send, to an old MME, a mobility related request;
• receive, from the old MME, a response to the mobility related request, the response comprising at least one of:
• an indication that the new MME should notify a Service Capability Exposure Function, SCEF, when the UE becomes reachable;
• and/or
• an indication that the new MME should notify the SCEF when the UE enters IDLE state.

An old Mobility Management Entity, MME configured to transfer monitoring event information during a mobility procedure, the old MME comprising processing circuitry configured to:

• receive subscription information indicating that a Service Capability Exposure Function, SCEF, has subscribed to get notification when there is a data delivery failure involving a UE, followed by the UE becoming reachable;
• detect a data delivery failure involving the UE, and, in response to detecting the data delivery failure, setting a flag to indicate that a data delivery failure involving the UE has occurred;
• receive, from a new MME serving the UE, a mobility related request;
• send, to the new MME, a response to the mobility related request, the response comprising at least one of:
• an indication that the new MME should notify the SCEF when the UE becomes reachable;
• and/or
• an indication that the new MME should notify the SCEF when the UE enters IDLE state.

A new Mobility Management Entity, MME, configured to transfer monitoring event information during a mobility procedure, the new MME comprising processing circuitry configured to:

• send, to an old MME, a mobility related request;
• receiving, from the old MME, a response to the mobility related request, the response comprising at least one of:
• an indication that the new MME should notify a Service Capability Exposure Function, SCEF, when the UE becomes reachable;
• and/or
• an indication that the new MME should notify the SCEF when the UE enters IDLE state.