中文说明：根据滤波器组的频域特性，可得到信道间干扰的特性为：ICI的虚部在符号周期T的整数倍位置为0，实部在T/2的奇数倍位置为0。因此，FBMC采用OQAM（offset QAM）调制，每个数据符号的实部和虚部不会同时传输，而是会延后半个符号周期，这样可以实现全速率传输。同时，相邻子载波之间的数据传输是实虚部交错的，这样在不需要保护间隔的前提下，保证相邻子载波之间的正交。
English Description：
According to the frequency domain characteristics of the filter banks, the characteristics of inter channel interference can be obtained as follows: the imaginary part of ICI is 0 at the integer multiple of symbol period T, and the real part is 0 at the odd multiple of T / 2. Therefore, fbmc uses OQAM (offset QAM) modulation, the real part and imaginary part of each data symbol will not be transmitted at the same time, but will delay half a symbol period, so that full rate transmission can be realized. At the same time, the real and imaginary parts of the data transmission between the adjacent subcarriers are interleaved, which ensures the orthogonality between the adjacent subcarriers without the need for protection interval.