正确答案: D

9

题目：一个CCE(control channel element, 控制信道元，控制信道元素)由()个REG(resource element group，资源粒子组)组成。

解析：D

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举一反三的答案和解析：

[多选题]一般把()必要带宽所在的区域称为带外区域，把()倍必要带宽外的称为杂散区域

50%~250%

250%

[多选题]LTE系统中NAS层协议支持的状态有()。

LTE-DETACHED

LTE-IDEL

LTE-ACTIVE Detached

解析：答案：ABC

[多选题]以下说法正确的是?

C-Plane Latency shows the idle to active transition time the end user may experience to setup a service.

U-Plane shows the PING round trip time in the end to end communication

Attach Time shows the connection time for an end user to attach to the network, during which the activation of a default bearer is performe

解析：ABD

[单选题]室内多系统合路要求TD-LTE的电平RSRP大于dBm

-85

解析：答案：B