The present document identifies impacts to services offered to subscribers served by 5GC in case profiles at UDR are corrupted, lost, or became inconsistent, and addresses how the impact can be minimized. The document will focus on the following aspects:
Clarify the necessity on defining procedures for 5GC to allow NFs, e.g. AMF, SMF, SMSF, NEF, PCF, AUSF to trigger correction and synchronization of temporary data within the UDR in case any corruption, loss, or inconsistency of data in UDR takes place, along with how NFs detect such case;
Whether similar issue needs to be addressed between other NFs;
Provide candidate solution(s) to solve the issue; and
Evaluate the candidate solution(s) and recommend any changes to specifications if identified.
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
: "Vocabulary for 3GPP Specifications".
: "5G System; Restoration procedures".
: "Mobile Application Part (MAP) specification".
: "Evolved Packet System (EPS); Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) related interfaces based on Diameter protocol".
: "5G System; Usage of the Unified Data Repository Service for Policy Data, Application Data and Structured Data for Exposure; Stage 3".
For the purposes of the present document, the terms given in TR 21.905
and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905
For the purposes of the present document, the following symbols apply:
For the purposes of the present document, the abbreviations given in TR 21.905
and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905