H31-411-ENU

SFBC is a transmit diversity technique that mainly obtains transmit diversity gain for areas with low SINR, such as cell edges. Compared to STBC, SFBC is a space-frequency two-dimensional transmit diversity, while STBC is a space-time two-dimensional transmit diversity.A . TrueB . FalseView AnswerAnswer: A

Which of the following are the solutions of the missed neighbor cell? (Multiple Choice)A . Adjust cell switching priorityB . Manually add neighbor cell configurationC . Check the RF (Radio Frequency) channelD . Open ANR algorithm switchView AnswerAnswer: BD

Which of the following command can query the model and supported band of RRU?A . DSP RRUB . LST RRUC . DSP BRDMFRINFOD . DSP BRDView AnswerAnswer: C

In LTE system, what is the length of the wireless subframe?A . 0.5msB . 1msC . 10msD . 7msView AnswerAnswer: B

In which of the following process, MME use DNS parse function based on GUTI to select new MME? (Multiple Choice)A . AttachB . TAUC . HandoverD . Service RequestView AnswerAnswer: AB

Which of the following interface is used to connect between eNodeB?A . IubB . S1C . X2D . S5View AnswerAnswer: C

Both the indoor distribution RRU3151 and RRU3152 series support 2T2R configuration.A . TrueB . FalseView AnswerAnswer: B

The SAE-GW is a combination of two network elements, SGW and PGW.A . TrueB . FalseView AnswerAnswer: A

The installation position of the GPS antenna to broaden its view of the sky, no tall buildings around. GPS antenna upright angle should not be less than 90°.A . TrueB . FalseView AnswerAnswer: A

When the user is in ECM-IDLE state, which of the following is the user's location granularity that the network can know?A . TAB . CellC . TA listD . Do not know any location informationView AnswerAnswer: C