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TECHNICAL HIGHLIGHTS

TSG CT WORK ON UAS

CONNECTIVITY,IDENTIFICATION

AND TRACKING

By Lena Chaponniere, 3GPP Working Group
CT1 Vice-Chair

One of the defining drivers of 5G is the expansion beyond

traditional mobile broadband to provide solutions meeting
the needs of vertical industries.

A very good example of 3GPP rising up to this challenge is the A key component of this work took place in CT Working
work done in Release 17 to use cellular connectivity to support Groups, which under the leadership of Sunghoon Kim (CT
Uncrewed Aerial Systems (UAS), thereby enabling this vertical Work Item rapporteur) and Waqar Zia (rapporteur of new
to benefit from the ubiquitous coverage, high reliability, QoS, specifications TS 29.255 and TS 29.256) developed the necessary
robust security, and seamless mobility provided by the 3GPP protocols and APIs to meet the service requirements specified
system. in 3GPP SA1 and the architectural enhancements specified in
3GPP SA2, as part of the Release 17 Work Item on ‘ID_UAS’.
The key functions of the 3GPP architecture for ID_UAS are
depicted in the following figure:

System architecture for UAV TPAE

TM

Data
UAS NF / N33 USS
NEF Network

N29, N30, N51, ...

NG-RAN N3 5GC N6

UE
(R)AN S1 EPC SGi

USS: UAS Service Supplier. The USS is an entity that
UAS NF: UAS Network Function. The UAS NF is a new 3GPP
network function which is used for external exposure supports the safe and efficient use of airspace by
of services to the USS, including UAV authentication/ providing services to the operator/pilot of a UAS to meet
authorization, UAV flight authorization, UAV-UAVC (UAV the UTM (Uncrewed Aerial System Traffic Management)
Controller) pairing authorization, UAV tracking and control operational requirements.
of QoS/traffic filtering for C2 communication. TPAE: Third Party Authorized Entity (e.g. ground control
tower).

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