# US 2026/0089786 A1 · Terminal apparatus

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- Number: US 2026/0089786 A1
- Document ID: US20260089786A1
- Status: Published application
- Kind: A1
- Application number: 19/143,147
- Filed: 2023-10-31
- Published: 2026-03-26
- Earliest claimed: 2023-04-07
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Sharp Kabushiki Kaisha
- Inventors: Masaki IZUMI; YASUO SUGAWARA; SHUICHIRO CHIBA
- Web page: https://patentgrep.com/patent/US20260089786A1

## CPC

- H04W 76/18: Management of setup rejection or failure
- H04W 4/30: Services specially adapted for particular environments, situations or purposes
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 76/14: Direct-mode setup
- H04W 92/18: between terminal devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

In a case that a terminal apparatus does not include a UICC and is not authorized to use A2X communication, the terminal apparatus transmits a direct link establishment reject message. In a case that a validity timer expires, the terminal apparatus stops the A2X communication via PC5.

## Claims

### Claim 1

(canceled)

### Claim 2

User Equipment (UE) comprising:
control circuitry, wherein
the UE is an Uncrewed Aerial Vehicle (UAV), and
the control circuitry is configured to, in a case that the UE is performing Aircraft-to-anything (A2X) communication over PC5 by using a radio parameter associated with an altitude range and the UE moves out of the altitude range, stop the A2X communication over the PC5.

### Claim 3 (depends on 2)

The UE according to claim 2, wherein
the control circuitry is further configured to, in a case that the UE is performing the A2X communication over the PC5 by using a radio parameter associated with an geographical area and the UE moves out of the geographical area, stop the A2X communication over the PC5.

### Claim 4 (depends on 2)

The UE according claim 2, wherein
the radio parameter is pre-configured in the UE.

### Claim 5 (depends on 2)

The UE according claim 2, wherein the radio parameter is provided by a core network.

### Claim 6

A method performed by User Equipment (UE),
the UE being an Uncrewed Aerial Vehicle (UAV),
the method comprising:
in a case that the UE is performing Aircraft-to-anything (A2X) communication over PC5 by using a radio parameter associated with an altitude range and the UE moves out of the altitude range, stopping the A2X communication over the PC5.