Protocol data unit (PDU) session establishment
Systems, methods, and instrumentalities are disclosed that are associated with cellular communications for unmanned aerial vehicles and associated devices. A WTRU may initiate multiple PDU sessions. The WTRU may initiate a first protocol data unit (PDU) session. The WTRU may receive one or more session parameters for a second PDU session. The one or more session parameters for the second PDU session may be received via the first PDU session. The WTRU may initiate the second PDU session using the one or more session parameters (e.g., based on an authentication and authorization associated with the first PDU session being successful). The WTRU may send or receive an operation communication via the second PDU session. The operation communication may comprise an unmanned aerial vehicle command and control message or an unmanned aerial vehicle payload message.
1. A wireless transmit/receive unit (WTRU), comprising:
a processor configured to:
send, to a network node, a first message, wherein the first message indicates a request to initiate a first protocol data unit (PDU) session associated with an authentication and authorization of the WTRU;
receive, from the network node, a second message, wherein the second message indicates an unmanned aerial vehicle (UAV) ID;
send, to the network node, a third message based on the authentication and authorization being successful, wherein the third message indicates a request, using the UAV ID, to initiate a second PDU session for command and control (C2) communications, and wherein the third message includes an authorization payload for the C2 communications; and
receive, from the network node, a fourth message, where the fourth message is a PDU session accept message.
2. The WTRU of claim 1 , wherein the processor is further configured to modify the first PDU session such that the C2 communications can be sent or received via the first PDU session.
3. The WTRU of claim 1 , wherein the C2 communications comprise at least a first command and control message associated with a first quality of service requirement, or a second command and control message associated with a second quality of service requirement.
4. The WTRU of claim 1 , wherein being configured to initiate the second PDU session comprises being configured to indicate a temporary ID associated with the WTRU.
5. The WTRU of claim 1 , wherein the initiation of the first PDU session is triggered by a command received via a side-link communication.
6. The WTRU of claim 1 , wherein the authentication and authorization are performed with at least one of: a UAS Service Supplier (USS), or a UAS Traffic Management (UTM).
7. A method performed by a wireless transmit/receive unit (WTRU), the method comprising:
sending, to a network node, a first message, wherein the first message indicates a request to initiate a first protocol data unit (PDU) session associated with an authentication and authorization of the WTRU;
receiving, from the network node, a second message, wherein the second message indicates an unmanned aerial vehicle (UAV) ID;
sending, to the network node, a third message based on the authentication and authorization being successful, wherein the third message indicates a request, using the UAV ID, to initiate a second PDU session for command and control (C2) communications, and wherein the third message includes an authorization payload for the C2 communications; and
receiving, from the network node, a fourth message, wherein the fourth message is a PDU session accept message.
8. The method of claim 7 , further comprising modifying the first PDU session such that the C2 communications can be sent or received via the first PDU session.
9. The method of claim 7 , wherein the C2 communications comprise at least a first command and control message associated with a first quality of service requirement, or a second command and control message associated with a second quality of service requirement.
10. The method of claim 7 , wherein initiating the second PDU session comprises indicating a temporary ID associated with the WTRU.
11. The method of claim 7 , wherein the initiation of the first PDU session is triggered by a command via a side-link communication.
12. The method of claim 7 , wherein the authentication and authorization are performed with at least one of; a UAS Service Supplier (USS), or a UAS Traffic Management (UTM).