Wcdma Optimization And Tuning

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| By Bsezgin
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Quizzes Created: 1 | Total Attempts: 113
Questions: 10 | Attempts: 113

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Wcdma Optimization And Tuning - Quiz

Questions and Answers
  • 1. 

    Which parameter pair is used only for Idle Mode Cell Re-Selection on WCDMA?

    • A.

      QOffset1sn-qOffset2sn

    • B.

      QOffset1sn-qQualmin

    • C.

      QRxlevmin-qQualmin

    • D.

      QRxlevmin-qOffset2sn

    Correct Answer
    A. QOffset1sn-qOffset2sn
    Explanation
    The parameter pair "qOffset1sn-qOffset2sn" is used only for Idle Mode Cell Re-Selection on WCDMA. This pair is used to determine the offset between the serving cell and the neighboring cells in terms of signal strength. It helps in determining when a cell re-selection should occur based on the measured signal strengths of the neighboring cells.

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  • 2. 

    When nOutSyncInd number of consecutive frames are out-of-sync a timer _________ is started and at expiry the RLS is considered out-of-sync and Radio Link Failure is reported to the SRNC.(Please fill in the blank)

    Correct Answer
    rlFailureT
    Explanation
    The correct answer is "rlFailureT". When a certain number of consecutive frames are out-of-sync, a timer called "rlFailureT" is started. Once this timer expires, it indicates that the Radio Link Status (RLS) is out-of-sync, and a Radio Link Failure (RLF) is reported to the Serving Radio Network Controller (SRNC). This timer helps to detect and report link failures in the radio communication system.

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  • 3. 

    Ericsson WCDMA RAN Performance Management includes counter for "Drops due to Missing Neighbors"

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Ericsson WCDMA RAN Performance Management includes a counter for "Drops due to Missing Neighbors." This means that the performance management system of Ericsson WCDMA RAN keeps track of the number of dropped calls that occur because of missing neighbors. This counter helps in identifying and troubleshooting issues related to missing neighbors, which can lead to dropped calls in the network. Therefore, the statement is true.

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  • 4. 

    Which below is a typical CPICH Power Range?

    • A.

      27 dBm - 33 dBm

    • B.

      20 dbm - 26 dbm

    • C.

      36 dBm - 42 dBm

    • D.

      12 dBm - 18 dBm

    Correct Answer
    A. 27 dBm - 33 dBm
    Explanation
    A typical CPICH Power Range is between 27 dBm - 33 dBm. This range represents the power level of the Common Pilot Channel (CPICH) in a cellular network. The CPICH is a reference signal that helps mobile devices synchronize with the network and measure the signal quality. The power range of 27 dBm - 33 dBm ensures that the CPICH signal is strong enough for reliable communication between the network and the mobile devices.

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  • 5. 

    Which one of the below interfaces have no direct impact on Accessibility?

    • A.

      Iub

    • B.

      Iur

    • C.

      Iu-Ps

    • D.

      Iu-Cs

    Correct Answer
    B. Iur
    Explanation
    The Iur interface has no direct impact on Accessibility. This interface is used in UMTS (Universal Mobile Telecommunications System) to connect the Radio Network Controllers (RNCs) in different Radio Network Subsystems (RNSs). It is responsible for the transfer of user data and control signals between RNCs. Accessibility, on the other hand, refers to the ability of individuals with disabilities to access and use a product or service. The Iur interface is not directly related to accessibility features or considerations.

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  • 6. 

    What is the maximum UL or DL Channel Elements a DUW30 can have by HW capacity?

    • A.

      128

    • B.

      256

    • C.

      384

    • D.

      512

    Correct Answer
    D. 512
    Explanation
    The maximum UL or DL Channel Elements a DUW30 can have by HW capacity is 512.

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  • 7. 

    Which one of the RAN features below utilizes the abundant power in the RBS for HSDPA?

    • A.

      HSDPA Link Adaptation

    • B.

      HSDPA Incremental Redundancy

    • C.

      HSDPA Multi-Carrier

    • D.

      Single HARQ Processing

    Correct Answer
    A. HSDPA Link Adaptation
    Explanation
    HSDPA Link Adaptation is the correct answer because it utilizes the abundant power in the RBS (Radio Base Station) for HSDPA (High-Speed Downlink Packet Access). Link adaptation is a technique used in wireless communication systems to optimize the data transmission based on the channel conditions. In the context of HSDPA, link adaptation adjusts the modulation and coding scheme (MCS) to maximize the data rate while maintaining an acceptable level of error performance. By utilizing the abundant power in the RBS, HSDPA link adaptation can effectively optimize the downlink data transmission for higher throughput and improved user experience.

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  • 8. 

    What is the Maximum Allowed Tranmission Power for a UE on WCDMA?

    • A.

      -50 dBm

    • B.

      21 dBm

    • C.

      30 dBm

    • D.

      33 dBm

    Correct Answer
    D. 33 dBm
    Explanation
    The Maximum Allowed Transmission Power for a UE on WCDMA is 33 dBm. This means that the UE is allowed to transmit at a power level of 33 decibels above 1 milliwatt. This high power level allows for better signal strength and coverage, especially in areas with weak network coverage or when the UE is far away from the base station. It also helps to maintain a stable and reliable connection between the UE and the network.

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  • 9. 

    Which one of the below statements is wrong about URA_PCH state?

    • A.

      URA_PCH provides less signalling load

    • B.

      URA_PCH is a solution for Paging Load

    • C.

      URA_PCH provides quicker Cell Reselections o GSM

    • D.

      URA_PCH decreases the battery consumption of a UE

    Correct Answer
    C. URA_PCH provides quicker Cell Reselections o GSM

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 24, 2015
    Quiz Created by
    Bsezgin
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