Support of External Group ID for ME
SCEF supports Monitoring Events using External Group Identifier. SCEF also support monitoring group of UE's procedure as specified in the 3GPP TS 23.682 Architecture enhancements to facilitate communications with packet data networks and applications.
SCEF supports the following monitoring event types for a group of UE's
- Loss of connectivity
- UE reachability
- Location reporting
- Change of IMSI-IMSISV association
- Roaming status
- Communication failure
- Availability after DDN failure
SCEF implements functionality to support ME reports from HSS and MME/SGSN as
shown in Figure 2-17
Figure 2-17 Call flow monitoring through HSS, MME, and SGSN
With the enhancement of support of external group ID, the SCEF supports the following:
- SCEF supports both single and continuous monitoring requests from SCS/AS for external group ID.
- SCEF provides an interface to retrieve the current monitoring event configuration information which includes UE Identities (IMSI, MSISDN/External Id/External group id), ME type, Single/Continuous monitoring, and Monitoring duration.
- SCEF provides the configuration option to specify the maximum allowed monitoring number of reports and maximum allowed monitoring duration that can be requested by SCS/AS. This configuration is applied to each of the SCS/AS which is allowed to send ME configuration requests to SCEF.
- SCEF supports the ME type for a group of number of UE's at the geographical location.
- SCEF supports network-initiated explicit ME deletion procedure from HSS as specified in 3GPP TS 23.682 Architecture enhancements to facilitate communications with packet data networks and applications for a group of UE.
- SCEF supports network-initiated explicit ME deletion procedure from HSS for a group of UEs as specified in 3GPP TS 23.682 Architecture enhancements to facilitate communications with packet data networks and applications.