RF Question Paper

7/30/2019 RF Question Paper

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Technology Knowledge

I. Fill in the blanks1. In radio signal propagation, there are two kinds of signal fading. The fading

caused by buildings shadow is called .The fading caused by multi-path is

called .

2. In GSM mobile communication system, there are mainly four kinds of diversity

technology: space diversity, , and polarization diversity.

3. The maximum value of VSWR in the base station antenna should be less than or

equal to .4. Electronic map mainly includes such three subdirectories as ,

which keep the information ASSET can use.

5. The relationship formular between dBi and dBd is dBd = .

6. In GSM specification, despite what frequency reuse pattern is applied,

Carrier/Interference must satisfy following request. Co-frequency C/I dB.

Adjacent frequency C/I dB. In engineering design, dB more should be

considered.

7. MAIO is the mobile allocation index offset in GSM system, the value range of

it

is

8. Gb is the interface between and PCU; Pb is the interface between and

PCU.

9. In GSM system, three parts are saved LAC information. They are ,

and MS .

10. In the GPRS/EDGE system, when data transmission begins, the PDP state

transition is needed. There are two PDP states: and .

II. Single choice

1. The Common Propagation Models applied to 1800 MHz macro cellular

predication is ( )


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A. Okumura-Hata B. Cost231-Hata

C. Cost231 Walfish-Ikegami D. Keenan-Motley

1. In the GPRS/EDGE system, the newly added system message in BCCH is: ()

A. SI2bis

B. SI2Q

C. SI8

D. SI13

2. During data transmission of GPRS/EDGE, which equipment has the function

of dynamically allocating terminal IP address? ()

A. HLR

B. PCU

C. SGSN

D. GGSN

III. Multiple choice1. The digital map used for mobile communication includes the following :

( ).

A. Digital topography model (UTM)

B. Ground coverage model (DOM data)

C. Building space distribution model (BDM model)

D. Digital elevation model (DEM data)

2. According the GSM0502 protocol , MAI is calculated by ( )

AMA BMAIO CHSN DCA EFN

3. Which of following behavior doesnt use SDCCH channel? ( )

A A. Early assignment B. Location Update

B C. IMSI Attached/Detached D. Short message when MS is in idle mode

C E. TCH Handover

D IV. Please answer questions briefly

Q: Please list the possible reasons to make cells TCH congestion rate high.


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Q: As far as you know, how many phases should be included in a whole procedure of

network planning & optimisation, and please describe the main tasks of each phase.

104 104 5387


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Circle DIST_NAME TOWN NAME

_

3G SAM

release

Status

Rajasthan Jaipur Jaipur (M Corp.) (Part) 332Rajasthan Jodhpur Jodhpur (M Corp.) 89

Rajasthan Kota Kota (M Corp.) 63

Rajasthan Udaipur Udaipur (M CI) 78

Rajasthan Ajmer Ajmer (M CI) 75

Rajasthan Bikaner Bikaner (M CI) 54

Rajasthan Aiwar Aiwar (M CI) 33

Rajasthan Bhilwara Bhilwara (MCI) 42

Rajasthan Aiwar Bhiwadi 15

Rajasthan Ganganagar Ganganagar (M CI) 28

Rajasthan Sikar Sikar (M CI) 17

Rajasthan Ajmer Beawar (M CI) 8Rajasthan Jhunjhunun Pilani 4

Rajasthan Chittaurgarh Chittaurgarh (M) 20

Rajasthan Bharatpur Bharatpur (M CI) 19

Rajasthan Jhunjhunun Jhunjhunun (M) 14

Rajasthan Pali Pali (MCI) 14

Rajasthan Hanumangarh Hanumangarh (M) 10

Rajasthan Sawai Madhopur Sawai Madhopur (M) 12

Rajasthan Nagaur Nagaur (M) 21

Rajasthan Churu Churu (M) 9

Gujrat Ahmedabad Ahmedabad (M Corp.) 365

Gujrat Amreli Arnreli (M) 10

Gujrat Anand Anand (M) 39

Gujrat Anand Khambhat (M) 6

Gujrat Banaskantha Palanpur (M) 10

Gujrat Bharuch Bharuch (M) 52

Gujrat Bharuch Dahej 4

Gujrat Bhavnagar Bhavnagar (M Corp.) 45

Gujrat Daman Daman 15

Gujrat Jamnagar Jamnagar (M Corp.) 40

Gujrat Junagarh Junagadh (M) 24

Gujrat Junagarh Veraval (M) 13

Gujrat Kachch Gandhidham (M) / Kandla 40

Gujrat Kachch Bhuj (M) 19

Gujrat Kachch Mundra (CT) 14

Gujrat Kheda Nadiad (M) 19

Gujrat Mahesana Mahesana (M) 27

Gujrat Naysari Naysari (M) -;..- 28

Gujrat Panch Mahal Godhra (M) 10

Gujrat Patan Patan (M) 7

Gujrat Porbandar Porbandar (M) 14

Gujrat Rajkot Rajkot (M Corp.) 98

Gujrat Rajkot Morvi (M) 31Gujrat Rajkot Jetpur Navagadh (M) 11


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Gujrat Surat Surat (M Corp.) 215

Gujrat Surendranagar Surendranagar Dudhrej (M) 26

Rajasthan Jaipur Jaipur (M Corp.) (Part) 332

Rajasthan Jodhpur Jodhpur (M Corp.) 89

Rajasthan Kota Kota (M Corp.) 63

Rajasthan Udaipur Udaipur (M CI) 78

Rajasthan Ajmer Ajmer (M CI) 75

Rajasthan Bikaner Bikaner (M CI) 54

Rajasthan Aiwar Aiwar (M CI) 33

Rajasthan Bhilwara Bhilwara (MCI) 42

Rajasthan Aiwar Bhiwadi 15

Rajasthan Ganganagar Ganganagar (M CI) 28

Rajasthan Sikar Sikar (M CI) 17

Rajasthan Ajmer Beawar (M CI) 8

Rajasthan Jhunjhunun Pilani 4

Rajasthan Chittaurgarh Chittaurgarh (M) 20

Rajasthan Bharatpur Bharatpur (M CI) 19

Rajasthan Jhunjhunun Jhunjhunun (M) 14

Rajasthan Pali Pali (MCI) 14

Rajasthan Hanumangarh Hanumangarh (M) 10

Rajasthan Sawai Madhopur Sawai Madhopur (M) 12

Rajasthan Nagaur Nagaur (M) 21

Rajasthan Churu Churu (M) 9

Gujrat Ahmedabad Ahmedabad (M Corp.) 365

Gujrat Amreli Arnreli (M) 10

Gujrat Anand Anand (M) 39

Gujrat Anand Khambhat (M) 6

Gujrat Banaskantha Palanpur (M) 10

Gujrat Bharuch Bharuch (M) 52

Gujrat Bharuch Dahej 4

Gujrat Bhavnagar Bhavnagar (M Corp.) 45

Gujrat Daman Daman 15Gujrat Jamnagar Jamnagar (M Corp.) 40

Gujrat Junagarh Junagadh (M) 24

Gujrat Junagarh Veraval (M) 13

Gujrat Kachch Gandhidham (M) / Kandla 40

Gujrat Kachch Bhuj (M) 19

Gujrat Kachch Mundra (CT) 14

Gujrat Kheda Nadiad (M) 19

Gujrat Mahesana Mahesana (M) 27

Gujrat Naysari Naysari (M) -;..- 28

Gujrat Panch Mahal Godhra (M) 10

Gujrat Patan Patan (M) 7Gujrat Porbandar Porbandar (M) 14


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Gujrat Rajkot Rajkot (M Corp.) 98

Gujrat Rajkot Morvi (M) 31

Gujrat Rajkot Jetpur Navagadh (M) 11

Gujrat Surat Surat (M Corp.) 215

Gujrat Surendranagar Surendranagar Dudhrej (M) 26

RF Question Paper

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