MIB 消息：信元
Cell search 完成后，终端下行时频同步并解调 PBCH 信道获取 MIB 消息内容；获取 MIB 的目的是由此获取其他系统消息，最终让
终端发起随机接入，完成上行同步，接入网络。 MIB 主要信息如下：
subCarrierSpacingCommon:
Subcarrier spacing for SIB1, Msg.2/4 for initial access, paging and broadcast SI-
messages. If the UE acquires this MIB on an FR1 carrier frequency, the value
scs15or60 corresponds to 15 kHz and the value scs30or120 corresponds to 30
kHz.
ssb-SubcarrierOffset:
Corresponds to kSSB (see TS 38.213 [13]), which is the frequency domain offset
between SSB and the overall resource block grid in number of subcarriers. (See
TS 38.211 [16], clause 7.4.3.1).
pdcch-ConfigSIB1:
Determines a common ControlResourceSet (CORESET), a
common search space and necessary PDCCH parameters.
这两张表确定了该小区各 SSB 对应的 SIB1 的 CORESET0 的时频资源位
置
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