A.Flexible sub-frame structure

B.New waveform

C.Massive MIMO

D.New mutli-access technology

A.to the meter

B.to the centimeter

C.to the millimeter

D.to the submitter .

A.Massive MIMO uses Large-scale antenna arrays

B.Legacy wide beams are replaced with narrow beams by adjusting then beam weight.

C.Massive MIMO improves capacity of a single call

D.Only horizontal beamforming is available

A.Inter-vendor compatibility test.

B.Field test of the NSA architecture.

C.Indoor test of the SA architecture

D.Field test of the SA architecture

A.incapable of collecting electric consumption information, costly manual meter reading
.

B.high cost for monitoring service carried by operator 4G network

C.low security and reliability of electric power services carried on public network

D.public network GPRS with low rate and long delay unable to
provision telecontrol, tele indication and telemetering, slow fault locating