Content for TR 22.843 Word version: 19.2.0
5.4 Use case on network-assisted UAV DAA
5.4.1 Description
5.4.2 Pre-conditions
5.4.3 Service Flows
5.4.4 Post-conditions
5.4.5 Existing features partly or fully covering the use case functionality
5.4.6 Potential New Requirements needed to support the use case
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5.4 Use case on network-assisted UAV DAA p. 12
5.4.1 Description p. 12
Collection of information for UAV detection and avoidance in order to support tactical deconfliction is one of the key functions to guarantee UAV service safety. Previous studies on 3GPP mostly focused on the aspect that the detection and resolution of collisions is locally performed between UAVs using direct UAV to UAV communication over PC5. However, UAV to UAV DAA is only one component of the overall solution and, as in current aviation system, support by ground systems for tactical deconfliction and collision avoidance is an essential complement. With the development of network capabilities for the support of UAVs, new system capabilities like sensing in the 3GPP network can also effectively assist the UAV DAA scenario to ensure the flight safety by providing a ground-assisted component.
5.4.2 Pre-conditions p. 12
UAV A is 3GPP aerial UE and subscribes the communication service from 5G network.
UAV B is an aerial vehicle not capable of 3GPP communications and could setup communication with USS/UTM directly.
5.4.3 Service Flows p. 13
- UAV A registers in 5G network and can setup communications with UTM though 5G network. UAV B setup communication with UTM directly.
- The UTM subscribes network-assisted UAV DAA service from Operator M.
- Operator M could use base station(s) to perform sensing to collect information about the UAV A and B in certain area and provide the collected information to UTM for DAA operation or to UAV A.
- Operator M could also collect information from UAV A about the flight status and reports to UTM.
- UTM could trigger DAA notifications for the flying UAV A and B under its area based on the information from network.
- UAV A and B receive the notification and take actions accordingly.
5.4.4 Post-conditions p. 13
UAV A and B can fly safely under the control of UTM with the support of 5G network.
5.4.5 Existing features partly or fully covering the use case functionality p. 13
SA1 has performed a study on UAV DAA in previous releases, where related normative stage 1 requirements are introduced in TS 22.125.
Clause 6.2 of TS 22.125 introduces the network support for UAV detection as below:
[R-5.2.1-001]
Clause 5.2 of TS 22.125 introduces the introduces network support for UAV avoidance as below:
The 3GPP system shall provide a mechanism for a UTM to provide route data, along with flight clearance, to a UAV.
[R-5.2.1-002]
The 3GPP system shall be able to deliver route modification information received from a UTM to a UAS with a latency of less than 500ms.
[R-5.2.1-003]
The 3GPP system shall be able to deliver the notifications received from a UTM to a UAV controller with a latency of less than 500ms.
[R-5.2.1-004]
Based on MNO policies and/or regulatory requirements, the 3GPP system shall enable the UTM to take over the communication used to control the UAV.
[R-6.2-001]
The 3GPP system shall provide means to allow a 3rd party to request and obtain real-time monitoring the status information (e.g., location of UAV, communication link status) of a UAV.
[R-6.2-002]
Based on operator's policy, the 3GPP system shall provide means to provide a 3rd party with the information regarding the service status for UAVs in a certain geographical area and/or at a certain time.
5.4.6 Potential New Requirements needed to support the use case p. 14
[P.R 5.4.6-001]
Based on operator's policy, the 5G system shall be able to provide a method to provide UTM and UAVs with the information collected or generated by the 5G system (e.g., based on sensing results), including e.g. the location or relative distance of 3GPP UAVs and other flying objects (can be drones not using 3GPP connectivity) with timestamp.
