Bostjan Meglic 7be7029ac4 Send deregistration event from AMF to UDM (#1599)
* [SBI] Fix converting PatchItem to JSON

* [UDR] Add support for endpoint for patching subscription data

Add support for PATCH HTTP method for the following endpoint:
/subscription-data/{ueId}/context-data/amf-3gpp-access

Currently does not change any data in the database.

* [UDM] Add support for endpoint for patching subscription data

Add support for the following endpoint, HTTP PATCH method:
/nudm-uecm/v1/{ueId}/registrations/amf-3gpp-access

The endpoint is used when UE deregisters from the core, and AMF
sends a subscription modification request with "purgeFlag" set.

* [UDM] Add check for same GUAMI when patching subscription data

* [AMF] Send deregistration event to UDM

When UE sends deregistration request, AMF needs to send a
Nudm_UECM_Deregistration request to UDM.
The order of requests is now the following:
- send PDU session release to SMF
- send deregistration event to UDM
- send AM policy control release to PCF
2022-06-14 23:44:02 +09:00
2022-06-12 16:29:24 +09:00
2022-05-28 11:10:03 +09:00
2022-05-21 19:22:11 +09:00
2017-12-18 10:35:54 +09:00
2022-06-12 16:29:24 +09:00
2022-05-15 06:27:54 +09:00

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Open5GS is a C-language Open Source implementation for 5G Core and EPC, i.e. the core network of LTE/NR network (Release-17)
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