Huawei Technologies Senior RF Engineer Interview Questions and Answers

RSRP stands for Reference Signal Received Power and represents the power of the received signal from the serving cell.

• RSRP is measured in dBm

• The range of RSRP is typically between -140 dBm to -44 dBm

• Higher RSRP values indicate stronger signal strength

NR Technology stands for New Radio Technology, which is the global standard for a unified, more capable 5G wireless air interface.

• NR Technology is the foundation of 5G wireless communication systems.

• It provides higher data rates, lower latency, and increased reliability compared to previous generations.

• NR Technology operates in both sub-6 GHz and mmWave frequency bands.

• It enables new use cases such as IoT, smart cities

A coupler is a device used to split or combine RF signals, while a tapper is used to attenuate a portion of the signal.

• Coupler splits or combines RF signals, while tapper attenuates a portion of the signal

• Coupler has multiple ports for signal input/output, tapper typically has one input and two outputs

• Coupler has a fixed coupling ratio, tapper allows for adjustable attenuation levels

Handover and drop call issues can be solved by optimizing network parameters, improving coverage and capacity, and troubleshooting hardware and software problems.

• Optimize handover parameters such as handover margin, time-to-trigger, and hysteresis

• Improve coverage by adding more base stations or adjusting antenna tilt and azimuth

• Increase capacity by adding more carriers or sectors

• Troubleshoot hardware issues like faulty...read more

The relation between inter and intra cell term point and anchor baseline is important in RF optimization.

• Inter cell term point refers to the point where the signal from one cell ends and the signal from another cell begins.

• Intra cell term point refers to the point within a cell where the signal quality starts to degrade.

• Anchor baseline is a reference point used to measure the performance of a network.

• The relation betwe...read more