The number of frequencies used in the baseband hopping frequency hopping sequence is the same as the number of carriers in the sector. 基本频带跳频的跳频序列中的频率数量与扇区中载波的数量相同。
It is better to group pilot tones together into clumps that are equispaced in the frequency domain. 可以证明,在快时变环境下,分组且每组等间隔分布于频域上的导频序列有着更好的系统性能。