ECP-383 試験問題を無料オンラインアクセス

What are two benefits provided by the introduction of GPRS/EGPRS Downlink Power Control in a GSM network? (Choose two.)

• A.reduced power consumption in RBS
• B.reduced downlink Interference levels In the system
• C.reduced uplink interference levels in the system
• D.increased PS accessibility

What is an advantage of using flexible numerology in New Radio (NR) 5G?

• A.It ensures that the same subcarrier bandwidth is used in NR in both high and low frequencies.
• B.It allows an alphanumeric mapping between physical data channels on coslted LTE and NR in non-standalone scenarios.
• C.It maintains a more consistent overhead over a very large range of carrier frequencies.
• D.It provides a non defined link between subcarriers used in LTE and NR.

Which two statements correctly describe Single Carrier Frequency Division Multiple Access (SC-FDMA) as used in LTE systems using uplink SIMO? (Choose two.)

• A.SC-FDMA is beneficial because it avoids intra-cell interference.
• B.SC-FDMA separates uplink transmissions in the time and/or frequency domain.
• C.SC-FDMA allows simultaneous uplink transmissions on the same physical resource blocks.
• D.SC-FDMA is beneficial because it avoids (nter-cell interference.

What are two correct characteristics of TDD and FDD LTE systems? (Choose two.)

• A.TDD LTE systems require paired spectrum to separate uplink and downlink transmissions.
• B.TDD LTE systems use guard period intervals after uplink transmissions.
• C.FDD LTE systems require paired spectrum to separate uplink and downlink transmissions.
• D.TDD LTE systems use guard period intervals after downlink transmissions.

Which two interfaces are part of a standalone 5G New Radio (NR) architecture? (Choose two.)

• A.N2
• B.X2
• C.N3
• D.SI