Learning Center - Test your knowledge

1. What is an example of an interference management technique?

Use directional antennas and sectorization

Increase serving signal

Use ESON algorithms and attenuation

Use omnidirectional antennas

2. Which of the following is true for CDMA systems?

Pilot has to be as high as possible when designing indoor systems

Pilot RSSI should be 5 to 7 dB higher than residual macro pilot RSSI

SHO is not an issue

DL is always the limiting link

3. Which of the following statements is false for coverage considerations?

The number of users can impact coverage and therefore must be taken into account when placing antennas

Antenna placement and orientation have an impact on coverage

Cellular operators often define in-building coverage requirements as a minimum signal strength level within at least a percentile of an area of the building

Macrocell penetration into the building needs to be considered to determine handover boundaries to in-building system

4. Which of the following statements is true?

RSRP should always be lower than -100 dBm

GSM provides data rates of up to 7.2 Mbps

UMTS uses reference signal receive power (RSRP)

SNIR impacts the max. data throughput in HSPA systems

5. When a wave travels from air onto a metallised glass window, the energy in the reflected wave compares with that reflected from a plain glass window as follows:

It is larger

It is smaller

It stays the same

It depends on the depth of metallisation

6. What are some of the advantages of an active antenna system?

Low hardware and maintenance costs

Low noise accumulation with increasing number of elements

Easy zoning and large coverage areas

Local power is not required at remote units

7. Which of the following components is an active component?

Antenna

Directional Coupler

Low Loss Cable

Repeater

8. How many dBm is 20 Watts?

43 dBm

20 dBm

33 dBm

200 dBm

9. Which of the following statements is false for leakage considerations?

In addition to coverage and isolation requirements, signal strength should be maintained at restricted levels to avoid signal spillage outside the building

Macrocell penetration into the building often neutralizes and reduces leakage

Signal spillage is known as leakage, and it is often desired to be kept at a minimum level over a percentile of an area outside the building

Antenna placement and orientation have an impact on the signal spillage outside of the building

10. Which of the following statements is false for capacity considerations?

Blocking happens, when a user attempts to make a phone call without available channels in the cell

Cellular operators aim to maximize the efficiency of their networks in terms of increasing the number of users accommodated per coverage area

When designing for capacity, calculations are performed for regular business hours

The grade of service is a measure of the ability of a user to access a trunked system during the busiest hour

11. Which of the following technologies is typically not supported by Small Cells?

12. Which of the following is not a main Wi-Fi industry body?

Wi-Fi Alliance

IEE 802.11

3GPP

Wireless Broadband Alliance

Are you ready for In-Building Fundamentals or Level 1 Certification?