| CPC H04B 17/12 (2015.01) [H04B 17/102 (2015.01)] | 12 Claims |
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1. An electronic device, in a wireless communication system, comprising:
a processor including processing circuitry;
an antenna array;
a plurality of first radio frequency (RF) paths related to a first stream, the first RF paths each comprising a transmit (TX) path and a receive (RX) path; and
a plurality of second RF paths related to a second stream, the second RF paths each comprising a TX path and an RX path,
wherein the processor is configured to:
generate a calibration signal for the antenna array,
determine characteristic information of the antenna array based on a phase difference or a gain difference between one TX path related to the first stream and one RX path related to the second stream obtained for each of measurement RF paths, and
calibrate the plurality of the first RF paths, based on the characteristic information,
wherein the calibration signal is sequentially applied to the measurement RF paths forming RF chains,
wherein each of two consecutive measured RF chains comprises a common RF path and a non-common RF paths pair, and wherein the common RF path and the non-common RF paths pair have opposite communication directions, and
wherein the characteristic information for a second non-common RF path of a second RF chain is determined as the phase difference or the gain difference between a first non-common RF path of a first RF chain and the second non-common RF path of the second RF chain.
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