The following information needs to be transferred from the BM-SC to the DF2 in order to allow a DF2 to perform its functionality:
events and associated parameters as defined in clauses 10.3.2 may be provided;
For Further Study:- Encryption parameters (keys and associated parameters for decrypting CC), if available and necessary.
The IRI should be sent to DF2 using a reliable transport mechanism.
Intercept Related Information (Events) are necessary are necessary for the following;
Start of Interception with Service Active.
Events shall include changes resulting from direct communication between the UE and BM-SC and off-line subscription changes (e.g. changes made by operator customer services on behalf of the subscriber).
A set of possible elements as shown in Table 10.2.2 are used to generate the events.
IMSI of the target.
Observed Other Identity
Other Identity of the target.
Description which type of event is delivered:- Service Joining; Service Leaving; Subscription Activation; Subscription Modification; Subscription Termination.
Date of the event generation in the BM-SC.
Time of the event generation in the BM-SC. Timestamp shall be generated relative to the BM-SC server internal clock.
MBMS Subscribed Service
Details of the MBMS Service to which the target has subscribed.
MBMS Service Joining Time
Requested MBMS Service Joining Time
MBMS Service Subscription List
List of all users subscribed to MBMS Service to which target has requested Joining.
The correlation number is used to correlate CC and IRI. The correlation number is also used to allow the correlation of IRI records.
Network Element Identifier
Unique identifier for the element reporting the ICE.
The initiator of the request either the UE or Off-line BM-SC access (eg customer services agent or internet).
Visited PLMN ID
Identity of the visited PLMN to which the user is registered
Access Point Name on which this IP multicast address is defined.
MBMS bearer service in broadcast or multicast mode
IP IP/IPv6 multicast address(multicast mode only)
IP or IPv6 multicast address identifying the MBMS bearer described by this MBMS Bearer Context.
List of Downstream Nodes
List of downstream nodes that have requested the MBMS bearer service and to which notifications and MBMS data have to be forwarded.
MBMS Leaving Reason
Indicates whether UE initiated/requested leaving, or whether BM-SC/network terminated the Service to the UE (e.g. GSN session dropped or BM-SC subscription expired etc).