在SPM模型中，城区与郊区两种地貌的差异主要表现在哪个指标上？

A. Nova, Neutron, Swift, Keystone, Glance, Trove, Horzion, Celiometer, Heat

B. Nova, Neutron, Keystone, Glance, Cinder, Horzion, Celiometer, Trove, Sahara

C. Nova, Neutron, Swift, Cinder, Horzion, Sahara

D. Nova, Neutron, Keystone, Glance, Cinder, Horzion, Celiometer, Heat

A. PCF

B. SMF

C. UPF

D. NRF

A. line of sight

B. loss of sight

C. loss of signal

D. line of signal

A. F1C

B. F1U

C. F1M

D. OAM

A. OFDMsymbol index

B. slot indexin a radio frame

C. radioframe number

D. Periodicityof SS burst set

A. Active-BPW-DL-Pcell

B. Active-BPW-DL-Scell

C. Active-BPW-UL-Scell

D. Active-BPW-UL-Pcell

A. 1

B. 2

C. 3

D. 4

A. 使用较小的小区带宽

B. 通过减少保护带来改善占用的信道带宽

C. 用于更高阶MIM0的更多天线

D. 不传输公共参考信号

A. Case B，Case B

B. Case B，Case C

C. Case C，Case C

D. Case A，Case B

A. 传输SIB消息（包括修改SIB消息）

B. 手机多连接管理

C. 传输paging 消息到gNB-DU端

D. 执行gNB基本的接入控制