Telecom Network Solutions RF Drive Test Engineer Interview Questions and Answers

Drive test is a method used to evaluate the performance of a wireless network by collecting data while driving around a specific area.

• Drive test involves using specialized equipment to measure signal strength, call quality, data throughput, and other network parameters.

• Data collected during drive tests is analyzed to identify coverage gaps, interference issues, and areas for network optimization.

• Drive tests are commonl...read more

There are two main types of swap: interest rate swaps and currency swaps.

• Interest rate swaps involve exchanging interest rate payments, often to switch from a fixed to a floating rate or vice versa.

• Currency swaps involve exchanging principal and interest payments in one currency for another, often to hedge against exchange rate risk.

CQI stands for Channel Quality Indicator. It is a measurement used in wireless communication systems to assess the quality of the channel.

• CQI is a metric used in cellular networks to determine the quality of the radio channel between the base station and the mobile device.

• It provides information about the signal strength, interference, and noise levels in the channel.

• CQI values range from 1 to 15, with higher values in...read more

Mobility KPIs measure the performance of a network's ability to handle mobile devices and maintain connectivity.

• Handover success rate

• Call drop rate

• Ping latency

• Data throughput

• Roaming success rate

PCI stands for Physical Cell Identity.

• PCI is a unique identifier assigned to each cell in a cellular network.

• It is used by mobile devices to identify and connect to a specific cell.

• PCI helps in avoiding interference between neighboring cells.

• PCI values range from 0 to 503 in LTE networks.

• For example, if a mobile device detects a strong signal from PCI 123, it will connect to the corresponding cell.