Envelope tracking for wideband signals using filter bank processing

An apparatus for wireless communication by a transmitter device, comprising:

• a memory comprising executable instructions;
• and
• one or more processors configured to execute the executable instructions and cause the apparatus to:
• transmit an indication of a characteristic of an amplification system used to amplify an input signal for transmission, wherein the amplification system implements envelope tracking using a combination of envelopes associated with subbands of the input signal;
• and
• transmit, to a receiver device, a transmission signal by amplifying the input signal using the amplification system.

An apparatus for wireless communication by a receiver device, comprising:

• a memory comprising executable instructions;
• and
• one or more processors configured to execute the executable instructions and cause the apparatus to:
• receive, from a transmitter device, an indication of a characteristic of an amplification system used to amplify an input signal for transmission of a transmission signal to the receiver device, wherein the amplification system implements envelope tracking using a combination of envelopes associated with subbands of the input signal;
• and
• receive the transmission signal based on the indication of the characteristic.