Frequency division duplexing operation of ambient internet of things device

An apparatus for wireless communication at a backscatter-capable device, comprising:

• at least one memory;
• and
• at least one processor coupled to the at least one memory and, based at least in part on stored information that is stored in the at least one memory, the at least one processor is configured to:
• receive, from a network device, a first indication of a first frequency range associated with a downlink (DL) transmission, a second indication of a second frequency range associated with an uplink (UL) communication from the backscatter-capable device, and a third indication of a third frequency range associated with an UL trigger from the backscatter-capable device;
• transmit, via the third frequency range, the UL trigger that indicates the backscatter-capable device has information to transmit;
• receive, in response to the UL trigger and via the first frequency range, a continuous wave (CW) DL transmission;
• and
• backscatter, via the second frequency range, the CW DL transmission to include the information.

A method of wireless communication at a network device, comprising:

• transmitting, to a backscatter-capable device, a first indication of a first frequency range associated with a downlink (DL) transmission, a second indication of a second frequency range associated with an uplink (UL) communication from the backscatter-capable device, and a third indication of a third frequency range associated with an UL trigger from the backscatter-capable device;
• receiving, via the third frequency range, the UL trigger indicating that the backscatter-capable device has information to transmit;
• transmitting, in response to a reception of the UL trigger and via the first frequency range, a continuous wave (CW) DL transmission for backscattering from the backscatter-capable device;
• and
• receiving, via the second frequency range, the information from the backscatter-capable device via the CW DL transmission backscattered by the backscatter-capable device.

A method of wireless communication at a backscatter-capable device, comprising:

• receiving, from a network device, a first indication of a first frequency range associated with a downlink (DL) transmission, a second indication of a second frequency range associated with an uplink (UL) communication from the backscatter-capable device, and a third indication of a third frequency range associated with an UL trigger from the backscatter-capable device;
• transmitting, via the third frequency range, the UL trigger that indicates the backscatter-capable device has information to transmit;
• receiving, in response to the UL trigger and via the first frequency range, a continuous wave (CW) DL transmission;
• and
• backscattering, via the second frequency range, the CW DL transmission to include the information.