RF Planning and Optimisation Questionaire

RF Planning and Optimisation Questionaire

Pls Note: More than one option may be correct. Pls take time to answer

1) For HSN = 0 what is the type of Hopping ?

            i)Pseudo Random Hopping

            ii)Cyclical Hopping

            iii)Circular Hopping

            iv)No Hopping

2) What is the code used for distinguishing 2 BTS having Co-Channels ?

            i)IMSI

            ii)MSISDN

            iii)BSIC

            iv)IMEI

            v)None of the above

3) What is the type of fading generally encountered in a dense urban environment.

            i)Slow and long term fading

            ii)Fast and short term fading

            iii)Both

            iv)None of the above

           

4) Channel Coding at the Air Interface consists of

            i)Block Coding

            ii)Short PN Coding

            iii)Convolutional Coding

            iv)Long PN Coding

            v)None of the above

5) Full Rate Speech Coding is at

            i)9.6 Kbps

            ii)13 Kbps

            iii)6.5 Kbps

            iv)4.8 Kbps

            v)None of the above

6) BSIC – Base Station Identity Code is found in which Logical Channel ?

            i)AGCH

            ii)PCH

            iii)BCCH

            iv)SCH

            v)None of the above

7) For Intercell handovers which is the channel used during handover ?

            i)SDCCH

            ii)SACCH

            iii)TCH

            iv)FACCH

            v)None of the above

8) What is the modulation method used in GSM at Air interface ?

            i)Pulse Code Modulation

            ii)Quadrature Amplitude Modulation

            iii)GMSK Modulation

            iv)PSK Modulation    

            v)None of the above

9) What is the kind of antenna generally used for coverage in GSM ?

            i)Horn Antenna

            ii)Panel Antenna

            iii)Parabolic Antenna

            iv)Yagi Antenna

            v)None of the above

10) Dynamic Power Control in MS is used for

            i)To overcome the effects of path loss

            ii)To resolve near and far problem

            iii)To save battery power

            iv)To reduce uplink interference

            v)All of the above

            vi)None of the above

11) What is the duration of a SACCH Multiframe measurement period?

            i)120 ms

            ii)235 ms

            iii)480 ms

            iv)4.615 ms

            v)None of the above

12) What is the maximum no of bit durations used for the timing advance?

            i)35

            ii)63

            iii)156.25

            iv)26

            v)None of the above

13) Which is the entity involved for deciding an intercell handover ?

            i)MS

            ii)BTS

            iii)BSC

            iv)MSC

v)None of the above

           

14) The TRAU Frame is between which network elements

            i)MS to BTS

            ii)MS to BSC

            iii)BTS to BSC

            iv)BTS to Transcoder

            v)None of the above

15) What is the name of the interface between BSC and Transcoder ?

            i)A Interface

            ii)Abis Interface

            iii)Um Interface

            iv)Ater Interface

            v)None of the above

16) The date rate of the TRAU Frame is

            i)13 Kbps

            ii)22.8 Kbps

            iii)16 Kbps

            iv)270.833 Kbps

            v)None of the above

17) Transcoder belongs logically to which network element

            i) BSC

            ii)MSC

            iii)BTS

            iv)MS

            v)All of the above

vi)None of the above

18) Name the logical Channel which is used by GPRS in dedicated mode.

            i) SDCCH

            ii)PDCCH

            iii)TCH

            iv)SACCH

            v)None of the above

19) When doe an MS needs to do a Location Update

            i)On changing LAC

            ii)On a period basis

            iii)On doing a Power ON

            iv)Logging to the network after no coverage

            v)All of the above

            vi)None of the above

20) The C / I “Co Channel Interference Ratio for a non Hopping GSM Network is

            i) – 9

            ii) 9

            iii)12

            iv) -12

            v) None of the above

21) Discontinuous Transmission helps in

            i)Increasing Battery life

            ii)Increasing Interference

            iii)Decreasing Interference

            iv)None of the above

22) The minimum separation to be kept in the same cell and site during frequency planning

i)200 Khz

ii)400Khz

iii)600Khz

iv)800Khz

v)100Khz

23) Multipath Fading is also called as

i) Lognormal Fading

ii) Shadow fading

iii) Rayleigh Fading

iv) Rician Fading

v) None of the above

24) In GSM Adaptive Equalisation can be maximum up to

i) 1µs

ii)8µs

iii)16µs

iv)32µs

v)None of the above

25) Electrical Tilt of an Antenna is given to the

i) Horizontal Pattern

ii)Vertical Pattern
iii)Both

iv)None of the above

Source: From Google