Cost-effective linearization for wireless communication
AssigneeAviacomm Inc.
InventorsHans Wang, Binglei Zhang, Tao Li, Shih Hsiung Mo
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Abstract
One embodiment of the present invention provides a transceiver for wireless communication. The transceiver includes a transmitting circuit, a receiving circuit, a power amplifier coupled to the transmitting circuit, and a looping mechanism configured to establish a closed loop that couples an output of the power amplifier to an input of the receiving circuit in response to a linearity compensation need, thereby facilitating cost-effective linearity compensation.
Claims12
A transceiver for wireless communication, comprising:
- a transmitting circuit;
- a receiving circuit;
- a power amplifier coupled to the transmitting circuit;
- and
- a looping mechanism configured to establish a closed loop that couples an output of the power amplifier to an input of the receiving circuit in response to a linearity compensation need, thereby facilitating cost-effective linearity compensation.
A method for linearity compensation of a wireless transceiver that includes a transmitter, a receiver, and a power amplifier coupled to the transmitter, comprising:
- receiving a linearity-compensation trigger signal;
- forming a closed loop using the transmitter, the receiver, and the power amplifier, wherein the closed loop is configured to feed an output of the power amplifier to an input of the receiver;
- and
- generating a pre-distortion signal that can be used to pre-distort a baseband signal before the baseband signal is modulated by the transmitter and amplified by the power amplifier, thereby enabling linearity compensation for the power amplifier.
Dependencies are inferred from the claim text.