Table 2. Description of usage scenarios for spot measurements.

Scenario	Activity for 2 minutes	Technology *	Phone position
Non-use **	The phone is set in flight mode.	-	Held in the right hand in front of the body (~30 cm)
BT-music	Song playback using wireless earphones connected to the phone via Bluetooth.	Bluetooth	Held in the right hand in front of the body (~30 cm)
WiFi-WAvoice	Bidirectional reception and transmission of audio signals using WhatsApp.	Wi-Fi	Held in the right hand and pressed against the right ear
WiFi-WAvideo	Bidirectional reception and transmission of audio and video signals using WhatsApp.	Wi-Fi	Held in the right hand in front of the body (~30 cm)
WiFi-fileUpload	Continuous file upload to an FTP server.	Wi-Fi	Held in the right hand in front of the body (~30 cm)
4G-nativeCall **	Bidirectional reception and transmission of audio signals through the native service of the phone.	up to 4G-LTE	Held in the right hand and pressed against the right ear
4G-WAvoice **	Bidirectional reception and transmission of audio signals using WhatsApp.	up to 4G-LTE	Held in the right hand and pressed against the right ear
4G-WAvideo **	Bidirectional reception and transmission of audio and video signals using WhatsApp.	up to 4G-LTE	Held in the right hand in front of the body (~30 cm)
4G-fileUpload **	Continuous file upload to an FTP server.	up to 4G-LTE	Held in the right hand in front of the body (~30 cm)
5G-WAvideo **	Bidirectional reception and transmission of audio and video signals using WhatsApp.	up to 5G-NR	Held in the right hand in front of the body (~30 cm)
5G-fileUpload **	Continuous file upload to an FTP server.	up to 5G-NR	Held in the right hand in front of the body (~30 cm)

*Technology constrained within Android settings.

**Usage scenarios conducted in the pre-test and pilot studies.

BT=Bluetooth; WAvoice=WhatsApp voice call; WAvideo=WhatsApp video call; LTE=Long Term Evolution; NR=New Radio.