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Parameters in LTE include bandwidth, frequency, modulation scheme, coding scheme, and transmission power.
Bandwidth: Determines the amount of frequency spectrum allocated for LTE transmission.
Frequency: Specifies the carrier frequency used for LTE communication.
Modulation scheme: Defines how data is encoded onto the carrier signal.
Coding scheme: Determines the error correction capabilities of the LTE system.
Transmission...
VoLTE stands for Voice over LTE, which allows voice calls to be made over a 4G LTE network.
VoLTE uses IP packets to transmit voice calls over LTE networks
Provides higher quality voice calls compared to traditional 2G/3G networks
Enables faster call setup times and improved battery life on smartphones
Supports features like HD voice, video calling, and simultaneous voice and data usage
Examples: Verizon's HD Voice, AT&T's
Types of handover include hard handover, soft handover, and softer handover.
Hard handover involves breaking the connection with the current cell before establishing a connection with the new cell.
Soft handover allows the mobile device to communicate with multiple cells simultaneously before switching to the new cell.
Softer handover is a variation of soft handover where the mobile device communicates with multiple secto...
Call will be dropped when moving from one cell to another
Handover is essential for seamless transition between cells
Without handover, call quality may degrade or call may be dropped
Handover ensures continuity of service as user moves between cells
I applied via Referral and was interviewed before Oct 2022. There were 3 interview rounds.
It's all about ground job. No fixed location. You have to travel across the country border. But, after getting 2 years of experience your demand will be high in telecom circle.
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I applied via Referral and was interviewed before Jun 2023. There were 2 interview rounds.
Array antennas are designed by arranging multiple antenna elements in a specific configuration to achieve desired radiation pattern and performance.
Determine the desired radiation pattern and performance requirements
Select the type of array configuration (linear, planar, conformal, etc.)
Calculate the spacing between antenna elements based on wavelength and array factor
Design feeding network to properly feed each antenn...
Antenna array design involves elements such as element spacing, beamforming techniques, and array geometry.
Element spacing determines the directivity and beamwidth of the array.
Beamforming techniques like phase shifting and amplitude tapering help steer the beam in a desired direction.
Array geometry, such as linear, planar, or conformal arrays, affects the radiation pattern and polarization.
Antenna array design also co...
The tilt in the base station antenna can be adjusted by physically changing the angle of the antenna.
Tilt can be adjusted by loosening the bolts on the antenna mount and manually changing the angle of the antenna
Specialized tools like tilt meters can be used to ensure the correct angle is achieved
Remote electrical tilt (RET) systems can also be used to adjust the tilt of the antenna electronically
I applied via Recruitment Consulltant and was interviewed in May 2022. There was 1 interview round.
posted on 27 Nov 2023
I applied via Naukri.com and was interviewed before Nov 2022. There were 3 interview rounds.
Discussing about troubleshooting process in NOC.
posted on 28 Sep 2023
I appeared for an interview before Sep 2022.
4G parameters in KPI are key performance indicators that measure the performance of a 4G network.
4G parameters in KPI include metrics such as signal strength, signal quality, throughput, latency, and handover success rate.
These parameters help assess the overall performance and quality of a 4G network.
For example, signal strength is measured in dBm and indicates the power level of the received signal.
Throughput measure...
SINR stands for Signal-to-Interference-plus-Noise Ratio, a measure of signal quality in wireless communication.
SINR is a ratio of the desired signal power to the interference and noise power.
It is used to evaluate the quality of a wireless signal in a given environment.
Higher SINR values indicate better signal quality and stronger signal-to-noise ratio.
SINR is commonly used in cellular networks to optimize network perf
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