A.The role of the logical channel is to characterize the type of message transmitted

B.MAC provides different logical channels to the radio link control (RLC) sublayer of layer 2

C.The role of the transmission channel is to describe how information is transmitted through the wireless interface

D.The physical layer provides data transmission services to the upper layers, which can be accessed through the MAC sublayer and using the transmission channel

A.A3

B.A5

C.A2

D.A4

A.Frequency bandwidth of the cell

B.Number of symbols occupied by the PDCCH

C.Whether to adopt 2*2MIMO

D.MCS adopted

A.UE in ECM-CONNECTED state mobility within system support the context transfers from the source eNB to the target eNB

B.Inter-cell load management

C.Switching with 3GPP systems

D.E-RAB business management function

A.P-TMSI

B.S-TMSI

C.RA-RNTI

D.TMSI