A.Average CPU usage of the board

B.Maximum CPU usage of the board

C.The minimum CPU usage of the board

D.The CPU usage of the board is higher than the preset threshold.

A.Keep about 80km/h at high speed

B.bustling urban areas remain at 20km/h or so

C.Keep about 120km/h at high speed

D.The general urban area is maintained at around 40-60km/h.

A.SINR

B.RSRP

C.RSRQ

D.RSSI

A.Dedicated bearer establishment success rate

B.RRC connection establishment success rate

C.Paging success rate

D.E-RAB assignment establishment success rate

A.Initial RRC connection establishment, when the UE transits from the idle state to the connected state, the UE initiates random access.

B.When the UE is in the connected state, the uplink data arrives for some reason (the UE thinks that its uplink is out of step) and needs random access.

C.When the UE performs handover, the UE initiates random access in the target cell.

D.Because the wireless link conditions are not good (failure), the RRC connection is reestablished, and the UE initiates random access.

E.When the UE is in the connected state, the downlink data arrives for some reason (the ENB thinks that the UE is out of step) requires random access.