Free Ericsson ECP-383 Exam Dumps Questions & Answers

A customer is deploying VoLTE and complains about high voice drop rates and voice quality degradation at the cell edge in most LTE cells in the area. The network has a dense WCDMA coverage on the 700 MHz band and patchy LTE coverage on the 2100 MHz band.
Which two features would you activate to solve this problem? (Choose two.)

• A.DRX
• B.TTI Bundling
• C.SRVCC Handover to UTRAN
• D.256 QAM DL

According to IR.92, which two LTE RAN functions are required to support VoLTE? (Choose two.)

• A.Inter-frequency handover
• B.RLC in Unacknowledged Mode for RTP transmissions
• C.Service Specific Inactivity Timer
• D.Multiple Radio Bearers per User

Which two statements are correct about a Self-Organizing Network (SON)? (Choose two.)

• A.SON is a drive test measurement tool for evaluation of network quality and new site location proposals.
• B.SON is a combination of functions that automatically change network behavior.
• C.SON is a centralized solution that automatically collects data and modifies parameters using a predefined algorithm.
• D.SON is a trace collection procedure for coverage prediction and reporting purposes.

What are two advantages of using the Data Forwarding at Intra-LTE Handover feature? (Choose two.)

• A.Data is received from two cells at the same time.
• B.Packet loss is minimized during handovers.
• C.User data can be forwarded directly between UEs over Wi-Fi.
• D.TCP performance Is improved.

Which two statements are true about 64 QAM modulation in the downlink direction? (Choose two.)

• A.The spectral efficiency of 64 QAM is lower than QPSK in strong radio conditions.
• B.The spectral efficiency of 64 QAM is higher than QPSK in strong radio conditions.
• C.The usage of 64 QAM is not dependent on radio channel quality.
• D.The usage of 64 QAM is UE dependent.