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
iii)Both
iv)None of the above
Source: From Google
