Method and apparatus for facilitating antenna calibration
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsHao Zhang, Ang Feng, Christian Braun, Chen Guo, Ruifang Ma
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a method (400) for facilitating Antenna Calibration, AC. The method (400) includes: identifying (410) a leakage signal from a signal received at an AC signal receiver and resulted from a reference signal originated from an AC signal transmitter passing through an AC signal path from the AC signal transmitter to the AC signal receiver; and cancelling (420) an influence of the leakage signal on an AC process.
Claims18
A method for facilitating antenna calibration (AC), the method comprising:
- identifying a leakage signal from a signal received at an AC signal receiver and resulting from a reference signal originated from an AC signal transmitter passing through an AC signal path from the AC signal transmitter to the AC signal receiver, wherein said identifying comprises:
- calculating a transfer function of the AC signal path,
- detecting from the transfer function a time delay of the leakage signal, and
- determining a phase and an amplitude of the leakage signal based on the time delay and the transfer function;
- and
- cancelling an influence of the leakage signal on an AC process.
An apparatus for facilitating antenna calibration, AC, (AC), the apparatus comprising:
- a processor and a memory, the memory comprising instructions executable by the processor whereby the apparatus is operative to perform:
- identifying a leakage signal from a signal received at an AC signal receiver and resulting from a reference signal originated from an AC signal transmitter passing through an AC signal path from the AC signal transmitter to the AC signal receiver, wherein said identifying comprises:
- calculating a transfer function of the AC signal path,
- detecting from the transfer function a time delay of the leakage signal, and
- determining a phase and an amplitude of the leakage signal based on the time delay and the transfer function;
- and
- canceling an influence of the leakage signal on an AC process.
Dependencies are inferred from the claim text.