Mobile Communication Frequency Reuse Quiz

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Questions and Answers

What is the maximum bit rate offered by 3G systems?

  • 1Mbps
  • 4Mbps
  • 2Mbps (correct)
  • 3Mbps

Which organization is responsible for managing the UMTS standard?

  • IEEE
  • ETSI
  • 3GPP (correct)
  • ITU

What was the first country to deploy a commercial UMTS network?

  • Germany
  • France
  • UK
  • Japan (correct)

What is the main advantage of WCDMA over 2G systems?

<p>High data capability (A)</p> Signup and view all the answers

Which duplexing modes are supported by 3G systems for communication?

<p>FDD and TDD (C)</p> Signup and view all the answers

What is the main benefit of Time Division Duplexing (TDD) over Frequency Division Duplexing (FDD)?

<p>More efficient spectrum utilization (A)</p> Signup and view all the answers

Which technology was the first to introduce digital voice and SMS capabilities in mobile communication?

<p>2G (A)</p> Signup and view all the answers

What is the bandwidth for 2G technology as per the provided table?

<p>14.4 kbps (B)</p> Signup and view all the answers

In which year did the implementation of 2.5G technology take place according to the text?

<p>1999 (C)</p> Signup and view all the answers

What is one of the key features of UMTS networks as mentioned in the text?

<p>Efficient use of radio spectrum (C)</p> Signup and view all the answers

What technique was used by the global system for mobile communication (GSM) standard in the 2nd generation (2G) to multiplex up to 8 calls per channel?

<p>Time Division Multiple Access (TDMA) (C)</p> Signup and view all the answers

What was one of the limitations of 2G systems mentioned in the text?

<p>Limited data capabilities (D)</p> Signup and view all the answers

What is the primary goal of the 3rd generation (3G) mobile telephony standards defined by the ITU?

<p>Increased bandwidth and diverse applications support (B)</p> Signup and view all the answers

Which mobile telephony standard used CDMA to multiplex up to 64 calls per channel in the 800MHz band during the 2nd generation (2G)?

<p>IS-95 (C)</p> Signup and view all the answers

What was one of the main reasons for the development of 3G mobile telephony standards?

<p>Enhanced facilities and improved data rates (C)</p> Signup and view all the answers

What is the advantage of using a single radio frequency for both directions in UMTS?

<p>No need for a duplexer (B)</p> Signup and view all the answers

Which components are needed when using a single radio frequency in UMTS?

<p>Fast switching synthesizer, RF filter path, and fast antenna switch (C)</p> Signup and view all the answers

In UMTS systems, what is the purpose of a fast antenna switch?

<p>To switch between transmit and receive modes rapidly (D)</p> Signup and view all the answers

Which technology uses Frequency Division Duplexing (FDD) in its standard GSM 900 Band?

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

What is the purpose of network domains in GSM systems?

<p>To route incoming calls to the correct exchange (B)</p> Signup and view all the answers

What allows a much higher subscriber density per MHz of spectrum in cellular systems?

<p>Frequency reuse (C)</p> Signup and view all the answers

What type of handsets can be used with a radio frequency lower than earlier systems in cellular networks?

<p>Battery-powered handsets (B)</p> Signup and view all the answers

What is required for continuous coverage in cellular systems as mobile units cross cell boundaries?

<p>Frequency change (A)</p> Signup and view all the answers

How are conversations maintained as mobile users travel from cell to cell in cellular networks?

<p>Handover between base stations (D)</p> Signup and view all the answers

What allows the same channels to be reused in different cells in cellular networks some distance apart?

<p>&quot;Frequency reuse&quot; (D)</p> Signup and view all the answers

What is the main purpose of HSDPA and wide band AMR services in UMTS?

<p>To enhance the speed of the data rate (B)</p> Signup and view all the answers

In UMTS, what speed can be achieved with the integration of voice data and downlink shared data on the same carrier?

<p>Up to 14 Mbps (B)</p> Signup and view all the answers

Which organization defines standards for different UMTS releases?

<p>3GPP (D)</p> Signup and view all the answers

What is the main difference between UMTS and CDMA 2000 in the context of IMT-2000 systems?

<p>UMTS is based on WCDMA technology while CDMA 2000 is based on CDMA technology (C)</p> Signup and view all the answers

What is the purpose of UMTS release architectures according to the text?

<p>To provide a smooth transition from second-generation systems by gradually introducing new software and network elements (C)</p> Signup and view all the answers

What is one of the key advantages that HSPA offers over the original UMTS system?

<p>Higher data transfer rates (D)</p> Signup and view all the answers

Which modulation technique is used in the downlink of HSPA to enable higher data transmission rates?

<p>64-QAM (C)</p> Signup and view all the answers

What is the downlink speed (in Mbps) offered by UMTS Release 7?

<p>28 (A)</p> Signup and view all the answers

What upgrade is introduced in 3GPP Release 10 to enhance uplink performance?

<p>MIMO in UL (D)</p> Signup and view all the answers

Which technology increases both data and voice capacity in UMTS networks?

<p>Multicarrier (C)</p> Signup and view all the answers

In which domain was UMTS Release 5 primarily oriented according to the text?

<p>Switched circuit operation (A)</p> Signup and view all the answers

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