WorksheetsBHN2026 Day 2
Total questions: 10
Worksheet time: 5mins
What was the primary limitation of pre-cellular mobile radio systems?
High power consumption
No frequency reuse, leading to limited capacity
Poor signal quality due to interference
Expensive mobile devices
What is the main purpose of the cellular concept in mobile communication?
To increase the coverage area
To reduce mobile device size
To solve spectral congestion and increase capacity
To improve call quality only
What is the typical shape used for cellular network planning?
Circle
Square
Triangle
Hexagon
What is the main purpose of frequency reuse in cellular systems?
To allow more users to access the network
To improve the voice quality of calls
To prevent signal attenuation
To eliminate the need for handoffs
What is the function of a Mobile Switching Center (MSC)?
Assigning IP addresses to mobile devices
Managing call routing and handoffs
Encoding and encrypting data
Enhancing signal quality in urban areas
What is the purpose of a handoff in cellular communication?
To transfer a call from one frequency to another
To switch a call between two network operators
To allow a call in progress to continue when moving between cells
To disconnect inactive users from the network
What type of interference occurs between signals using the same frequency in different cells?
Adjacent channel interference
Co-channel interference
Multipath interference
Doppler interference
Which capacity improvement technique involves dividing congested cells into smaller ones?
Frequency reuse
Cell splitting
Dynamic channel allocation
Trunking
What is the purpose of the umbrella cell concept?
To reduce power consumption in mobile devices
To accommodate users with different mobility speeds
To eliminate the need for base stations
To provide backup power for cellular towers
What is Doppler shift in mobile communication?
A change in signal strength due to obstacles
A shift in received signal frequency due to motion
A reduction in battery life due to signal processing
A type of interference caused by overlapping frequencies
