RAN Engineer Interview Questions and Answers for Freshers

MCR stands for Maximum Cell Rate. It is the maximum rate at which cells can be transmitted through a network.

• MCR is an important parameter in ATM (Asynchronous Transfer Mode) networks.

• It is used to ensure that the network does not become congested.

• MCR is determined by the network operator and is based on the capacity of the network.

• Improving MCR can be done by increasing the capacity of the network or by optimizing the traffic flow.

• The reason for MCR is to prevent network con...read more

Cell throughput refers to the amount of data transmitted by a cell, while user throughput is the amount of data received by a user.

• Cell throughput is the total amount of data transmitted by a cell, including data sent to all users within the cell.

• User throughput is the amount of data received by a single user within the cell.

• Cell throughput is affected by factors such as the number of users, signal strength, and available bandwidth.

• User throughput is affected by factors such ...read more

HO stands for Handover. It is a process of transferring an ongoing call or data session from one cell to another.

• There are two types of HO: Intra-cell HO and Inter-cell HO

• Intra-cell HO occurs when a mobile device moves from one channel to another within the same cell

• Inter-cell HO occurs when a mobile device moves from one cell to another

• Events in HO include HO Request, HO Access, HO Required, HO Command, and HO Complete

CA stands for Carrier Aggregation. It is a technology used in LTE networks to combine multiple frequency bands for higher data rates.

• CA allows for faster data speeds by combining multiple frequency bands.

• There are two types of CA: intra-band and inter-band.

• Intra-band CA combines multiple carriers within the same frequency band.

• Inter-band CA combines carriers from different frequency bands.

• CA can be used in different combinations, such as 2CA, 3CA, or 4CA.

• For example, 2CA can ...read more

SIB stands for System Information Block. It is a type of message used in wireless communication systems.

• SIBs contain information about the network, such as cell identity, location area code, and frequency.

• There are different types of SIBs, including SIB1, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, and SIB12.

• SIB1 is the most important SIB, as it contains information about the cell identity, frequency, and other important network parameters.

• SIB2 contains info...read more

CQI stands for Channel Quality Indicator and MCS stands for Modulation and Coding Scheme.

• CQI is a feedback mechanism used in wireless communication systems to indicate the quality of the channel.

• MCS is a technique used to modulate and encode data for transmission over a wireless channel.

• CQI and MCS are used together to optimize the transmission rate and quality of wireless communication.

• Higher CQI values indicate better channel quality, while higher MCS values indicate higher...read more