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Add NGAP Handover Required message NGAP encoder and RRC callback on source NG-RAN

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This commit introduces the NG Mobility Management Procedure known as
Handover Preparation. The outbound message is sent by the source NG-RAN
and is known as Handover Required.

* introduce NGAP library for Mobility Management
* introduce NGAP IEs encoder functions for Handover Required and relevant common IEs
* handle RRC trigger in NGAP and Send NGAP Handover Required to the AMF

Co-authored-by: batuhan duyuler <batuhan.duyuler@firecell.io>
This commit is contained in:
Guido Casati
2025-09-18 11:34:30 +02:00
co-authored by batuhan duyuler
parent cfb654e77f
commit 20e534d483
13 changed files with 506 additions and 2 deletions
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openair3/NGAP/ngap_common.h
+3
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@@ -87,6 +87,9 @@ ngap_ambr_t decode_ngap_UEAggregateMaximumBitRate(const NGAP_UEAggregateMaximumB
nssai_t decode_ngap_nssai(const NGAP_S_NSSAI_t *in);
ngap_security_capabilities_t decode_ngap_security_capabilities(const NGAP_UESecurityCapabilities_t *in);
ngap_mobility_restriction_t decode_ngap_mobility_restriction(const NGAP_MobilityRestrictionList_t *in);
void encode_ngap_target_id(NGAP_HandoverRequiredIEs_t *out, const target_ran_node_id_t *in);
void encode_ngap_nr_cgi(NGAP_NR_CGI_t *out, const plmn_id_t *plmn, const uint32_t cell_id);
pdusession_level_qos_parameter_t fill_qos(uint8_t qfi, const NGAP_QosFlowLevelQosParameters_t *params);
/** @}*/