| 摘要 |
A method of calibrating an antenna array comprising N antennas in a wireless network, comprising providing a copy of a first output transmit signal from a transmit chain of an n th antenna to receive chains of all antennas in the array comparing the copy of the first output transmit signal to an output receive chain signal at each antenna in the array and determining a first overall gain mismatch measurement, A n , providing copies of a second output transmit signal from the respective N antennas in the array to a receive chain of the n th antenna, comparing the copies of the second output transmit signal to an output receive chain signal of the n th antenna and determining a second overall gain mismatch measurement, B n , and determining receive chain mismatch and transmit chain mismatch based at least in part on N measurements of A n and the N measurements of B n , as well as a corresponding apparatus. |
