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51问答网 > LTE中20M带宽的RB数是100对还是100个，为什么

LTE中20M带宽的RB数是100对还是100个，为什么

2025-03-31 12:59:37

推荐回答（3个）

回答1：

100个。每个RB在频率上有12个子载波，每个子载波15K. 100个RB占用带宽=100*12*15=18M.加上前后各1M保护带宽，共20M.

回答2：

按照1ms的调度周期就是100对，每个时隙100个

回答3：

1)发射机rsrp是sib里面广播的，所以可以不考虑路损
2）我们一般标记的是一个时刻的功率，所以因子是1200不是7*1200，对应10*log10（1200）
3）得到的是enb的配置的最大发射功率

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