RF Optimization Questions in Interview

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Monday, 27 June 2016
RF Optimization Questions in Interview

1.      
    Optimization Questions
a)      How you can optimize a new network.
b)      Basic parameters you notice in optimization (Both TEMS & NPI).
c)       Which tool you use for network optimization and some properties of tool used.
d)      Drive test parameters Rx lev, Rx Qual, SQI, C/I, FER, BER and values for all the parameters (best and worst).
e)      Rx Qual relation to BER.
f)       Rx Qual difference with SQI.
g)      Channel in RF stands for which value of frequency.
h)      Factors associated with worst Rx Qual in the network.
i)        Call drop reasons.
j)        How to improve C/I and value for hopping and Non-hopping networks.
k)      How to improve voice crackling problem in the network.
l)        How you give tilt to the antenna in the network.
m)    How to measure the tower height.
n)      How you overcome with the problem of over-shooting of the Cells.
o)      Which type of antenna you decide for city coverage, capacity and for town and Highways?
p)      How many BCCH scanned by the MS in the neighbor list.
q)      Post processing tool used for Drive Test.

2.     

Anteena Based Questions
a)      Antenna Pattern.
b)      Isotropic Antenna.
c)       Antenna Beam width.
d)      Polarization used in antenna.
e)      Vertical and Horizontal polarization.
f)       X-Pol Antenna.
g)      Antenna Gain.
h)      How you decide Antenna height.
i)        Effect of antenna tilt on antenna pattern.
j)        Which type of tilt is better Mechanical or Electrical?
k)      Use of TMA and TMB with antenna.
l)        VSWR and value for that.

3.       Planning Questions and other  general questions
a)      How to plan a fresh network.
b)      Max Cell radius for 900/1800 band.
c)       Frequency Planning.
d)      Hopping type.
e)      Which type of hopping is best Synthesizer/Baseband?
f)       Coverage planning/ Capacity planning.
g)      Call Flow (MTC/MOC).
h)      HO Call Flow.
i)        HO based on Rx Qual, Rx Lev, Power Budget, TA Based.
j)        Handover Algorithm.
k)      Hysteresis Offset given in Cell Reselection.
l)        Function of penalty counter in HO.
m)    Adaptive power control used in network.
n)       Authentication Process.
o)      KPI Parameters
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