Mobile Network Fundamentals

<p>European Telecommunications Standards Institute (ETSI) (C)</p> Signup and view all the answers

<p>A fixed-location transceiver that facilitates communication (C)</p> Signup and view all the answers

<p>To establish a digital and circuit-switched network (C)</p> Signup and view all the answers

<p>High bandwidth capacity on all channels (A)</p> Signup and view all the answers

<p>A unified and open standard-based network (B)</p> Signup and view all the answers

<p>They allowed for packet data transmission (B)</p> Signup and view all the answers

<p>Increased network coverage and better voice quality (B)</p> Signup and view all the answers

<p>It identifies the subscriber within the network (B)</p> Signup and view all the answers

<p>Manage and store user data (C)</p> Signup and view all the answers

<p>Channel coding and interleaving (C)</p> Signup and view all the answers

<p>IMSI of visitors not native to the network (C)</p> Signup and view all the answers

<p>It facilitates roaming across networks (A)</p> Signup and view all the answers

<p>To route calls around the network (B)</p> Signup and view all the answers

<p>Managing Unified Database Management (A)</p> Signup and view all the answers

<p>Routing SMS to the handset from the SMSC (D)</p> Signup and view all the answers

<p>Local caching of IMSI data (B)</p> Signup and view all the answers

<p>It handles handovers between BSCs (A)</p> Signup and view all the answers

<p>Call duration and SMS records (D)</p> Signup and view all the answers

<p>Mobile Subscriber Integrated Services Digital Network Number (D)</p> Signup and view all the answers

<p>Allocates radio channels (C)</p> Signup and view all the answers

<p>To increase the capacity of the network in a limited frequency range (D)</p> Signup and view all the answers

<p>To replace pagers with GSM devices (A)</p> Signup and view all the answers

<p>The pattern of frequency re-use in a network (D)</p> Signup and view all the answers

<p>Macro Cell (D)</p> Signup and view all the answers

<p>Serving GPRS Support Node (SGSN) (C)</p> Signup and view all the answers

<p>It stores details of each SIM and current roaming area. (A)</p> Signup and view all the answers

<p>Mobile phones can unlock car doors remotely. (A)</p> Signup and view all the answers

<p>UPLINK is usually at a higher frequency than DOWNLINK. (B)</p> Signup and view all the answers

<p>Regulating mobile phone battery life (A)</p> Signup and view all the answers

<p>It can vary based on the design and location of the base station. (A)</p> Signup and view all the answers

<p>Succeeding as a replacement for pagers (A)</p> Signup and view all the answers

<p>They utilize different frequency ranges but serve similar functionalities. (B)</p> Signup and view all the answers

<p>Through triangulation with base stations (B)</p> Signup and view all the answers

<p>Rising data demand from users (A)</p> Signup and view all the answers

A radio network divided into cells, covering a large geographical area. It enables communication between portable and fixed devices.

A mobile communication standard (2G) developed by ETSI to replace 1G analog networks.

A fixed location transceiver in a mobile network.

A digital mobile network standard, a successor to 1G analog networks.

European Telecommunications Standards Institute, an organization that develops communication standards.

A unique number assigned to each mobile device, enabling communication and identification within the network.

A transceiver that transmits and receives signals within a cell in a mobile network, acting as a connection point between users and the core network.

A geographical area covered by a base station in a mobile network, where users can communicate with each other and the network.

The direction of communication from a mobile device to the base station.

The direction of communication from the base station to a mobile device.

A technique used to maximize the use of available frequencies in a mobile network by reusing the same frequency bands in different cells.

A small cell with limited coverage area, typically used in dense urban areas to enhance network capacity.

A central database that stores subscriber information, including their current location, active services, and roaming status.

A local cache in a mobile network that stores information about visitors, especially roamers, to expedite call setup.

The heart of a mobile network, responsible for routing calls between subscribers, handling handovers, and managing billing.

The VLR stores the IMSI of visitors (users who are not native to the network) and other relevant information for call setup. This is crucial to quickly connect calls for roaming users.

The MSC uses information from the VLR to route calls to the correct subscriber. It also manages handovers between base stations (cell towers) as a user moves.

TAUs are messages sent by the HLR periodically to connected devices, informing them about their current network location. This helps maintain accurate location information for subscribers.

Handovers ensure smooth transitions between base stations as a user moves, preventing call drops and maintaining connection quality. The MSC manages these handovers.

The major reasons for the GSM standard's development include addressing the lack of interoperability between different technologies and protocols, simplifying the complexity for equipment manufacturers, and enabling a unified, open, and standard-based network.

Key features of the GSM standard include improved spectrum efficiency due to new technologies, consistent voice quality regardless of signal strength, security through authentication and encryption, and support for roaming and SIM cards.

This generation of GSM technology introduced GPRS and EDGE for faster data transmission, reaching speeds up to 64 kbps. It enabled early mobile internet access and multimedia messaging.

The development of mobile handsets progressed from basic voice calls to include SMS, data capabilities, multimedia features, and eventually sophisticated operating systems and apps. This evolution was driven by technological advancements and growing user demands.

Mobile networks store temporary data about a user's current location and other information required for seamless communication and service provisioning.

GSM's open interface design allows for compatibility and interoperability between different components and manufacturers, promoting competition and innovation within the mobile industry.

A Base Station Controller manages multiple Base Transceiver Stations (BTSs) in a GSM network. It allocates radio channels, handles handovers between BTSs, and ensures seamless communication as a mobile phone moves across cells.

A Base Transceiver Station (BTS) is the physical radio base station, responsible for wireless communication in a GSM network. It receives signals from mobile phones, transmits signals to them, and handles the transceiver functions.

The Short Message Service Centre (SMSC) handles text messages (SMS) in a GSM network. It stores messages, facilitates delivery, and ensures messages reach their intended recipients.

The Gateway GPRS Support Node (GGSN) and Serving GPRS Support Node (SGSN) are crucial for data communication in a GSM network. GGSN connects the network to external data networks like the internet, while SGSN manages data services within the network.

Mobile phone location is determined using triangulation. By monitoring its signal strength from multiple cell towers, the network can pinpoint the phone's approximate location.

Many misconceptions exist surrounding mobile phones, such as their ability to influence car doors, hospital equipment, or cause fires. These claims are largely debunked, and scientific evidence suggests no direct causal links.

The mobile phone market has grown exponentially, with a dramatic increase in smartphone usage and data consumption. This growth continues to drive network development and technology advancements.

The mobile industry faces various challenges, such as handling increasing data demands, diversifying applications, managing consumer confusion with different tariffs, and competing with VoIP services like Skype.