I/Q mismatch compensation method and apparatus

摘要

An In-phase/Quadrature phase (I/Q) mismatch compensation method of a transceiver is provided. The method includes establishing a first loopback path between a transmitter and a receiver, transmitting a training sequence from the transmitter to the receiver through the established first loopback path, acquiring, at the receiver, a first correlation result value by correlating the training sequence received through the established first loopback path, establishing a second loopback path between the transmitter and the receiver, transmitting the training sequence from the transmitter to the receiver through the established second loopback path, acquiring, at the receiver, a second correlation result value by correlating the training sequence received through the second loopback path, and estimating I/Q mismatch values of the transmitter and the receiver using the first and second correlation result values.

主权项

1. An In-phase/Quadrature phase (I/Q) mismatch compensation method of a transceiver, the method comprising:
establishing a first loopback path between a transmitter and a receiver; transmitting a first training sequence from the transmitter to the receiver through the established first loopback path; acquiring, at the receiver, a first correlation result value by correlating the first training sequence received through the established first loopback path; establishing a second loopback path between the transmitter and the receiver; transmitting a second training sequence from the transmitter to the receiver through the established second loopback path; acquiring, at the receiver, a second correlation result value by correlating the second training sequence received through the second loopback path; and estimating I/Q mismatch values of the transmitter and the receiver using the first and second correlation result values; wherein the first loopback path is established by turning on a first switch interposed between a first module input node of the transmitter and a first module output node of the receiver and turning off a second switch interposed between a second module output node of the transmitter and a second module input node of the receiver, and the second loopback path is established by turning off the first switch and turning on the second switch.