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TS 23.256
Support of Uncrewed Aerial Systems (UAS)
Connectivity, Identification and Tracking

V19.2.0 (Wzip)2025/03  … p.
V18.4.0 (PDF)2025/03  … p.
V17.9.02025/03  … p.
Rapporteur:
Mr. Stefano, Faccin
QUALCOMM Europe Inc. - Italy

essential Table of Contents for  TS 23.256  Word version:  19.1.0

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List of Figures and Tables

Figure 4.2.2-1Logical 5GS and EPS architecture for UAV
Figure 4.2.2-2Non-roaming architecture for interworking between 5GS and EPC/E-UTRAN
Figure 4.2.2-3Local breakout roaming architecture for interworking between 5GS and EPC/E-UTRAN
Figure 4.2.3-15G System non-roaming architecture for UAVs and for A2X communication over PC5 and Uu reference points
Figure 4.2.4-1Roaming 5G System architecture for UAVs and for A2X communication over PC5 and Uu reference points - local breakout scenario in service-based interface representation
Figure 4.2.4-2Roaming 5G System architecture for UAVs and for A2X communication over PC5 and Uu reference points - Home routed scenario
Table 4.4.1.1.1-1NF Services provided by NEF
Table 4.4.1.2.1-1NF Services provided by AF
Figure 5.2.2.1-1UUAA in the context of the Registration procedure (UUAA-MM)
Figure 5.2.2.2-1UUAA-MM procedure
Figure 5.2.3.2-1UUAA during PDU Session Establishment
Figure 5.2.3.3-1UUAA during PDN connection establishment at Attach procedure in EPS
Figure 5.2.3.4-1UUAA during the UE requested PDN connectivity procedure in EPS
Figure 5.2.4.1-1UAV Re-authentication procedure in 5GS
Figure 5.2.4.2-1UAV Re-authentication procedure in EPS
Figure 5.2.4.3-1UAV Re-authorization procedure in 5GS
Figure 5.2.4.4-1UAV Re-authorization procedure in EPS
Figure 5.2.5.2.2-1PDU Session modification for C2 communication (common PDU session for UAS services)
Figure 5.2.5.2.3-1PDU Session establishment for C2 communication (separate PDU Sessions for UAS services)
Figure 5.2.5.3.1-1UE requested PDN Connectivity for C2 authorization
Figure 5.2.5.3.2-1UE requested bearer resource modification of an existing PDN connection for C2 authorization
Figure 5.2.5.4.1-1USS initiated C2 pairing policy configuration in 5GS
Figure 5.2.5.4.2-1USS initiated C2 pairing policy configuration in EPS
Figure 5.2.7.1-1Procedure for UAV authorization revocation by USS
Figure 5.2.8-1UAV-C replacement procedure
Figure 5.2.8.2-1UAV controller replacement in EPS
Figure 5.2.9.1-1Revocation of C2 connectivity in 5GS
Figure 5.2.9.2-1Revocation of C2 connectivity in EPS
Figure 5.3.2-1UAV Location Reporting
Figure 5.3.3-1UAV Presence Monitoring
Figure 5.3.4-1List of Aerial UEs in a geographic area
Figure 5.6.1-1DAA procedure based on PC5
Figure 5.7.1-1Logical architecture for ground based DAA
Figure 5.7.2-1High-level procedure for Ground-based DAA for an Area
Figure 5.12.2-1Procedure for NEF Assisted Pre-flight Planning
Figure 5.12.3-1Procedure for NEF Assisted In-flight Monitoring
Figure 5.13.2-1Procedure for UAV changeover from one USS to another serving different geographical areas
Figure 5.14.2-1Procedure for UAV/UAV-C Triggered Network-assisted DAA
Figure 5.14.3-1Procedure for AAM Triggered Network-assisted DAA
Figure 5.14.4-1Procedure for USS Triggered Network-assisted DAA
Figure 5.16.2-1Procedure for instructing aerial UEs for altitude reporting
Figure 5.16.3-1Procedure for reporting of UE's altitude information
Figure 6.1.2.2-15G System architecture for AF-based service parameter provisioning for A2X communications
Table 6.2.4.1-1Standardized PQI values to QoS characteristics mapping
Figure 6.3.1.1-1User Plane for NR PC5 reference point
Figure 6.3.2.3-1UE triggered A2X Policy provisioning procedure
Figure A.1-1Procedure for PDU Session establishment for C2 redundant
Figure A.2-1Architecture for achieving C2 communication reliability via redundant (disjoint) user plane paths
Figure A.2-2Reliability group-based redundancy concept in RAN

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