Wcdma Optimization And Tuning

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

True

False

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.

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.

2. Which below is a typical CPICH Power Range?

27 dBm - 33 dBm

20 dbm - 26 dbm

36 dBm - 42 dBm

12 dBm - 18 dBm

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.

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.

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

Iub

Iur

Iu-Ps

Iu-Cs

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.

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.

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

URA_PCH provides less signalling load

URA_PCH is a solution for Paging Load

URA_PCH provides quicker Cell Reselections o GSM

URA_PCH decreases the battery consumption of a UE

not-available-via-ai

Explanation

not-available-via-ai

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

HSDPA Link Adaptation

HSDPA Incremental Redundancy

HSDPA Multi-Carrier

Single HARQ Processing

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.

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.

6. 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)

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.

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

QOffset1sn-qOffset2sn

QOffset1sn-qQualmin

QRxlevmin-qQualmin

QRxlevmin-qOffset2sn

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.

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.

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

-50 dBm

21 dBm

30 dBm

33 dBm

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.

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.