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35 Commits

Author SHA1 Message Date
Stare Gaber 4655507a00 [AMF] Fix deregistration request De-registration type 2023-12-19 06:47:54 +09:00
Oliver Smith 66c39f2085
[MME] [AMF] Set Daylight Saving Time (#2766) 
Fix DST always being set to 0 ("No adjustment for Daylight
Saving Time").

Related: 3GPP TS 24.008 § 10.5.3.12
 2023-12-06 20:24:33 +09:00
Sukchan Lee e42048e8a5
Reset the number of TA, SLICE, and PLMN supported by AMF/MME(#2761) (#2765) 
* update it

* update it

* update it

* update it

* update it

* udpate it

* uupdate it
 2023-12-03 23:52:29 +09:00
Oliver Smith 5070ddfa3e
[MME] [AMF] Add no_time_zone_information param (#2745) 
Allow network operators to omit the time zone in the 4G EMM Information
and 5G Configuration Update. This is useful for better compatibility
with some UEs.

The parameter is optional according to:
* 4G: 3GPP TS 24.301 Table 8.2.13.1
* 5G: 3GPP TS 24.501 Table 8.2.19.1.1
 2023-11-27 22:26:12 +09:00
Sukchan Lee d33d67b2af [AMF/MME] Defaults 9 minutes for T3412/T3512 2023-08-13 11:16:06 +09:00
Sukchan Lee 84ed9a0dd3 UE slice shall be also available in RAN (#2482) 
Changed to that registration can be accepted only
when the UE slice is available in the RAN slice.
 2023-08-09 16:06:39 +09:00
Sukchan Lee 424f382265 [AMF/MME] Support TAI Range 2023-03-19 18:31:45 +09:00
Sukchan Lee 69c080c8f2 [NAS/GTP/PFCP] Upgrade IE to Release-17 
As raised in #2147, AMF fails to decode S1 UE Network Capability.

So I reviewed all IE in NAS, GTP and PFCP and fixed it for Release-17.
 2023-03-11 18:42:30 +09:00
Sukchan Lee 8a6c36daca [AMF] Network Initiated De-Register (#2014, #2021) 
Resolved Network Initiated Implicit/Explicit De-Registration
 2023-01-29 22:44:44 +09:00
Sukchan Lee 944adaabbf [AMF/MME] Added Timer Configuration (#1905) 2022-11-29 23:22:16 +09:00
mitmitmitm b9f6432e54 [AMF] Support REREGISTRATION_REQUIRED in dereg notify 2022-10-26 14:40:41 +09:00
Bostjan Meglic aa3cded11a [AMF] Handle namf-callback DeregNotify message from UDM 
UDM may send a Deregistration Notification to AMF, to deregister
specific UE from the network - Network-Initiated Deregistration.
Deregistration procedure includes sending Deregistration Request to UE,
starting a timer T3522, releasing PDU sessions from SMF, releasing PCF
policies from PCF, and waiting for Deregistration Accept from UE.

Not yet implemented is:
- to prevent deregistration of UE in case it has any emergency sessions,
- page UE when UE is in IDLE mode.
 2022-07-11 22:53:21 +09:00
Bostjan Meglic d1a2971990 [NAS] modify library to include both directions of deregistration requests 
Definitions in NAS library now include both directions of deregistration
requests/accepts - from UE and from network.
 2022-07-11 22:53:21 +09:00
Sukchan Lee 118d62d42d Add more memory log 2021-06-06 22:35:46 +09:00
Sukchan Lee 5ea9b22209 [AMF] security protection (UERANSIM-issues316) 
1. Allocate ngKSI other than the value already used.
2. Add the protection of Service request
3. fix SBI convert error ng_ap_cause
 2021-05-08 13:24:17 +09:00
Sukchan Lee dcfc9ef803 [AMF/MME] Add retransmission for accept message 
Registration accept with GUTI
Attach accept
Tracking area update request with GUTI
 2021-04-23 15:16:18 +09:00
Sukchan Lee cc03c91bdd [AMF] 5G-GUTI generation changed (#910) 
The AMF shall assign a new 5G-GUTI for a particular UE:
a) during  a successful initial registration procedure;
b) during a successful registration procedure
   for mobility registration update; and
c) after a successful service request procedure invoked as a response
   to a paging request from the network and before the release
   of the N1 NAS signalling connection as specified in subclause 5.4.4.1.

The AMF should assign a new 5G-GUTI for a particular UE
during a successful registration procedure
for periodic registration update. The AMF may assign a new 5G-GUTI
at any time for a particular UE by performing
the generic UE configuration update procedure.
 2021-04-13 17:34:25 +09:00
Sukchan Lee 83720fff9a fix: mobilty -> mobility (#930) 2021-04-13 10:02:52 +09:00
Sukchan Lee bb38c01229 fix : Allow NSSAI in Registration accept (#910) 
Always Present Allow NSSAI in Registration accept
 2021-04-03 14:07:44 +09:00
Sukchan Lee fc5c9b2af0 Try to fix the UE infinite attach (#568) 
If both Delete-Session-Request/Response and
UEContextReleaseCommand/UEContextReleaseComplete are failed at the same time,
UE cannot attach to the EPC infinitely.

So, I've add the protection code
if timer expires when MME does not receive Delete-Session-Response.
 2021-03-09 14:28:07 +09:00
Sukchan Lee 9af4268bab arch: DB schema Changes (#796) 
- New function : NSSF
- New feature : SMF selection
 2021-03-08 21:25:09 +09:00
Sukchan Lee 7b29cdf898 Handling UEContextRequest of InitialUEMessage 2021-01-07 22:26:06 -05:00
Sukchan Lee c9cfc4cf6e etc: update debug message 2021-01-04 23:24:22 -05:00
Sukchan Lee bcffdd823e Re-factoring 5GC for solving crash issue 2020-08-02 23:22:41 -04:00
Sukchan Lee 7bb1c7055f Remove ACK in configuration update [#487] 2020-07-09 17:34:41 -04:00
Sukchan Lee a71d2ee3db refine SGW/UPF selection code 2020-07-09 01:38:09 -04:00
Sukchan Lee ad12949469 Add ACK in configuration upate command [#487] 2020-07-02 02:16:52 -04:00
Sukchan Lee fae342ecce Apply Release-16 in 4G EPC(S1AP,NAS,GTP) 2020-07-01 00:22:55 -04:00
Sukchan Lee 01b69e046f Bug Fixed for 5GC 2020-06-25 22:44:28 -04:00
Sukchan Lee 6e84ac670d Bug fixed for 5G core 2020-06-25 00:37:29 -04:00
Sukchan Lee d652075ab9 a couple of bug is fixed 2020-06-24 00:33:10 -04:00
Sukchan Lee 300123d990 Bug fixed for 5GC 2020-06-23 00:35:41 -04:00
Sukchan Lee b35c2277be simple 5GC registration is done 2020-06-21 23:10:54 -04:00
Sukchan Lee dbee687a75 Add only one 5GC scenario (call-flow) 2020-06-17 01:22:28 -04:00
Sukchan Lee 72370ff0b2 Add AUSF, UDM, and UDR 2020-06-04 14:12:05 -04:00