Established air-ground communication with WAC on VHF (UC7)

Please note: This use case originates from the predecessor project PJ.10-W2-73 FCA as part of the SESAR2020 Programme and is not considered in the current project.

This Use Case describes the actions to be taken in Wide Area Communication over VHF to establish air-ground communication.

Preconditions

The Flight Centric EC needs to contact the Flight Crew.

Postconditions: Success end state

Communication with the Flight Crew is established.

Postconditions: Failed end state

Communication with the Flight Crew is not established.

Trigger

The Flight Centric EC needs to contact the Flight Crew, for example to answer the initial call or a request of the Flight Crew or to issue a clearance or instruction.

Main Flow

  1. The Flight Centric EC identifies the flight he wants to talk to.
  2. He clicks on the label of the respective flight (to activate the corresponding transmitter/frequency). Note: After clicking on the label the systems may need up to one second until the Flight Centric EC is able to send a radio message using push-to-talk (PTT).
  3. He pushes the push-to-talk (PTT) button of the headset to initiate the voice communication with the pilot.
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