Apparatus and method for calibrating transmission paths in a multicarrier communication system using multiple antennas
First Claim
1. An apparatus for calibrating transmission paths in a multicarrier communication system using multiple antennas, comprising:
- a calibration processor for generating reference signals to estimate distortions in phase and amplitude in transmission paths, allocating the generated reference signals to subcarriers which are different in each of the transmission paths, and calculating calibration vectors for the transmission paths using the generated reference signals and received reference signals received through the transmission paths; and
a baseband module for inverse-fast-Fourier-transform (IFFT)-processing the generated reference signals allocated to the subcarriers and sending the IFFT signals in the transmission paths.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and method for calibrating transmission paths in a multicarrier communication system using multiple antennas are provided. In the transmission path calibrating apparatus, a calibration processor generates reference signals to estimate distortions in phase and amplitude in transmission paths, allocates the generated reference signals to subcarriers which are different in each of the transmission paths, and calculates calibration vectors for the transmission paths using the generated reference signals and received reference signals received through the transmission paths. A baseband module IFFT-processes the generated reference signals allocated to the subcarriers and sends the IFFT signals in the transmission paths.
-
Citations
18 Claims
-
1. An apparatus for calibrating transmission paths in a multicarrier communication system using multiple antennas, comprising:
-
a calibration processor for generating reference signals to estimate distortions in phase and amplitude in transmission paths, allocating the generated reference signals to subcarriers which are different in each of the transmission paths, and calculating calibration vectors for the transmission paths using the generated reference signals and received reference signals received through the transmission paths; and
a baseband module for inverse-fast-Fourier-transform (IFFT)-processing the generated reference signals allocated to the subcarriers and sending the IFFT signals in the transmission paths. - View Dependent Claims (2, 3, 4)
-
-
5. A method of calibrating transmission paths in a multicarrier communication system using multiple antennas, comprising the steps:
-
generating reference signals to estimate distortions in phase and amplitude in transmission paths and allocating the generated reference signals to subcarriers which are different in each of the transmission paths;
inverse-fast-Fourier-transform (IFFT)-processing the generated reference signals allocated to the subcarriers and sending the IFFT signals in the transmission paths; and
calculating calibration vectors for the transmission paths using the generated reference signals and received reference signals received through the transmission paths. - View Dependent Claims (6, 7, 8, 9)
-
-
10. An apparatus for calibrating transmission paths in a multicarrier communication system using multiple antennas, comprising:
-
a calibration processor for generating reference signals, allocating the generated reference signals to subcarriers in each of the transmission paths, and calculating calibration vectors using the generated reference signals and received reference signals received through the transmission paths; and
a baseband module for processing the generated reference signals allocated to the subcarriers and sending the processed signals in the transmission paths. - View Dependent Claims (11, 12, 13)
-
-
14. A method of calibrating transmission paths in a multicarrier communication system using multiple antennas, comprising the steps:
-
generating reference signals and allocating the generated reference signals to subcarriers in each of the transmission paths;
processing the generated reference signals allocated to the subcarriers and sending the processed signals in the transmission paths; and
calculating calibration vectors for the transmission paths using the generated reference signals and received reference signals received through the transmission paths. - View Dependent Claims (15, 16, 17, 18)
-
Specification